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>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_cmnd.h>
29 #include <scsi/scsi_device.h>
30 #include <scsi/scsi_host.h>
31 #include <scsi/scsi_transport_fc.h>
32 #include <scsi/fc/fc_fs.h>
33 #include <linux/aer.h>
38 #include "lpfc_sli4.h"
40 #include "lpfc_disc.h"
41 #include "lpfc_scsi.h"
43 #include "lpfc_crtn.h"
44 #include "lpfc_logmsg.h"
45 #include "lpfc_compat.h"
46 #include "lpfc_debugfs.h"
47 #include "lpfc_vport.h"
49 /* There are only four IOCB completion types. */
50 typedef enum _lpfc_iocb_type {
58 /* Provide function prototypes local to this module. */
59 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
61 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
62 uint8_t *, uint32_t *);
63 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
65 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
68 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
74 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
75 * @q: The Work Queue to operate on.
76 * @wqe: The work Queue Entry to put on the Work queue.
78 * This routine will copy the contents of @wqe to the next available entry on
79 * the @q. This function will then ring the Work Queue Doorbell to signal the
80 * HBA to start processing the Work Queue Entry. This function returns 0 if
81 * successful. If no entries are available on @q then this function will return
83 * The caller is expected to hold the hbalock when calling this routine.
86 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
88 union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
89 struct lpfc_register doorbell;
92 /* If the host has not yet processed the next entry then we are done */
93 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
95 /* set consumption flag every once in a while */
96 if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
97 bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1);
99 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
101 /* Update the host index before invoking device */
102 host_index = q->host_index;
103 q->host_index = ((q->host_index + 1) % q->entry_count);
107 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
108 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
109 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
110 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
111 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
117 * lpfc_sli4_wq_release - Updates internal hba index for WQ
118 * @q: The Work Queue to operate on.
119 * @index: The index to advance the hba index to.
121 * This routine will update the HBA index of a queue to reflect consumption of
122 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
123 * an entry the host calls this function to update the queue's internal
124 * pointers. This routine returns the number of entries that were consumed by
128 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
130 uint32_t released = 0;
132 if (q->hba_index == index)
135 q->hba_index = ((q->hba_index + 1) % q->entry_count);
137 } while (q->hba_index != index);
142 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
143 * @q: The Mailbox Queue to operate on.
144 * @wqe: The Mailbox Queue Entry to put on the Work queue.
146 * This routine will copy the contents of @mqe to the next available entry on
147 * the @q. This function will then ring the Work Queue Doorbell to signal the
148 * HBA to start processing the Work Queue Entry. This function returns 0 if
149 * successful. If no entries are available on @q then this function will return
151 * The caller is expected to hold the hbalock when calling this routine.
154 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
156 struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
157 struct lpfc_register doorbell;
160 /* If the host has not yet processed the next entry then we are done */
161 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
163 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
164 /* Save off the mailbox pointer for completion */
165 q->phba->mbox = (MAILBOX_t *)temp_mqe;
167 /* Update the host index before invoking device */
168 host_index = q->host_index;
169 q->host_index = ((q->host_index + 1) % q->entry_count);
173 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
174 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
175 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
176 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
181 * lpfc_sli4_mq_release - Updates internal hba index for MQ
182 * @q: The Mailbox Queue to operate on.
184 * This routine will update the HBA index of a queue to reflect consumption of
185 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
186 * an entry the host calls this function to update the queue's internal
187 * pointers. This routine returns the number of entries that were consumed by
191 lpfc_sli4_mq_release(struct lpfc_queue *q)
193 /* Clear the mailbox pointer for completion */
194 q->phba->mbox = NULL;
195 q->hba_index = ((q->hba_index + 1) % q->entry_count);
200 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
201 * @q: The Event Queue to get the first valid EQE from
203 * This routine will get the first valid Event Queue Entry from @q, update
204 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
205 * the Queue (no more work to do), or the Queue is full of EQEs that have been
206 * processed, but not popped back to the HBA then this routine will return NULL.
208 static struct lpfc_eqe *
209 lpfc_sli4_eq_get(struct lpfc_queue *q)
211 struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
213 /* If the next EQE is not valid then we are done */
214 if (!bf_get(lpfc_eqe_valid, eqe))
216 /* If the host has not yet processed the next entry then we are done */
217 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
220 q->hba_index = ((q->hba_index + 1) % q->entry_count);
225 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
226 * @q: The Event Queue that the host has completed processing for.
227 * @arm: Indicates whether the host wants to arms this CQ.
229 * This routine will mark all Event Queue Entries on @q, from the last
230 * known completed entry to the last entry that was processed, as completed
231 * by clearing the valid bit for each completion queue entry. Then it will
232 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
233 * The internal host index in the @q will be updated by this routine to indicate
234 * that the host has finished processing the entries. The @arm parameter
235 * indicates that the queue should be rearmed when ringing the doorbell.
237 * This function will return the number of EQEs that were popped.
240 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
242 uint32_t released = 0;
243 struct lpfc_eqe *temp_eqe;
244 struct lpfc_register doorbell;
246 /* while there are valid entries */
247 while (q->hba_index != q->host_index) {
248 temp_eqe = q->qe[q->host_index].eqe;
249 bf_set(lpfc_eqe_valid, temp_eqe, 0);
251 q->host_index = ((q->host_index + 1) % q->entry_count);
253 if (unlikely(released == 0 && !arm))
256 /* ring doorbell for number popped */
259 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
260 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
262 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
263 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
264 bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
265 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
266 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
267 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
268 readl(q->phba->sli4_hba.EQCQDBregaddr);
273 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
274 * @q: The Completion Queue to get the first valid CQE from
276 * This routine will get the first valid Completion Queue Entry from @q, update
277 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
278 * the Queue (no more work to do), or the Queue is full of CQEs that have been
279 * processed, but not popped back to the HBA then this routine will return NULL.
281 static struct lpfc_cqe *
282 lpfc_sli4_cq_get(struct lpfc_queue *q)
284 struct lpfc_cqe *cqe;
286 /* If the next CQE is not valid then we are done */
287 if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
289 /* If the host has not yet processed the next entry then we are done */
290 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
293 cqe = q->qe[q->hba_index].cqe;
294 q->hba_index = ((q->hba_index + 1) % q->entry_count);
299 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
300 * @q: The Completion Queue that the host has completed processing for.
301 * @arm: Indicates whether the host wants to arms this CQ.
303 * This routine will mark all Completion queue entries on @q, from the last
304 * known completed entry to the last entry that was processed, as completed
305 * by clearing the valid bit for each completion queue entry. Then it will
306 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
307 * The internal host index in the @q will be updated by this routine to indicate
308 * that the host has finished processing the entries. The @arm parameter
309 * indicates that the queue should be rearmed when ringing the doorbell.
311 * This function will return the number of CQEs that were released.
314 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
316 uint32_t released = 0;
317 struct lpfc_cqe *temp_qe;
318 struct lpfc_register doorbell;
320 /* while there are valid entries */
321 while (q->hba_index != q->host_index) {
322 temp_qe = q->qe[q->host_index].cqe;
323 bf_set(lpfc_cqe_valid, temp_qe, 0);
325 q->host_index = ((q->host_index + 1) % q->entry_count);
327 if (unlikely(released == 0 && !arm))
330 /* ring doorbell for number popped */
333 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
334 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
335 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
336 bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
337 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
342 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
343 * @q: The Header Receive Queue to operate on.
344 * @wqe: The Receive Queue Entry to put on the Receive queue.
346 * This routine will copy the contents of @wqe to the next available entry on
347 * the @q. This function will then ring the Receive Queue Doorbell to signal the
348 * HBA to start processing the Receive Queue Entry. This function returns the
349 * index that the rqe was copied to if successful. If no entries are available
350 * on @q then this function will return -ENOMEM.
351 * The caller is expected to hold the hbalock when calling this routine.
354 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
355 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
357 struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
358 struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
359 struct lpfc_register doorbell;
360 int put_index = hq->host_index;
362 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
364 if (hq->host_index != dq->host_index)
366 /* If the host has not yet processed the next entry then we are done */
367 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
369 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
370 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
372 /* Update the host index to point to the next slot */
373 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
374 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
376 /* Ring The Header Receive Queue Doorbell */
377 if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
379 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
381 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
382 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
388 * lpfc_sli4_rq_release - Updates internal hba index for RQ
389 * @q: The Header Receive Queue to operate on.
391 * This routine will update the HBA index of a queue to reflect consumption of
392 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
393 * consumed an entry the host calls this function to update the queue's
394 * internal pointers. This routine returns the number of entries that were
395 * consumed by the HBA.
398 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
400 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
402 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
403 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
408 * lpfc_cmd_iocb - Get next command iocb entry in the ring
409 * @phba: Pointer to HBA context object.
410 * @pring: Pointer to driver SLI ring object.
412 * This function returns pointer to next command iocb entry
413 * in the command ring. The caller must hold hbalock to prevent
414 * other threads consume the next command iocb.
415 * SLI-2/SLI-3 provide different sized iocbs.
417 static inline IOCB_t *
418 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
420 return (IOCB_t *) (((char *) pring->cmdringaddr) +
421 pring->cmdidx * phba->iocb_cmd_size);
425 * lpfc_resp_iocb - Get next response iocb entry in the ring
426 * @phba: Pointer to HBA context object.
427 * @pring: Pointer to driver SLI ring object.
429 * This function returns pointer to next response iocb entry
430 * in the response ring. The caller must hold hbalock to make sure
431 * that no other thread consume the next response iocb.
432 * SLI-2/SLI-3 provide different sized iocbs.
434 static inline IOCB_t *
435 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
437 return (IOCB_t *) (((char *) pring->rspringaddr) +
438 pring->rspidx * phba->iocb_rsp_size);
442 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
443 * @phba: Pointer to HBA context object.
445 * This function is called with hbalock held. This function
446 * allocates a new driver iocb object from the iocb pool. If the
447 * allocation is successful, it returns pointer to the newly
448 * allocated iocb object else it returns NULL.
450 static struct lpfc_iocbq *
451 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
453 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
454 struct lpfc_iocbq * iocbq = NULL;
456 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
461 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
462 * @phba: Pointer to HBA context object.
463 * @xritag: XRI value.
465 * This function clears the sglq pointer from the array of acive
466 * sglq's. The xritag that is passed in is used to index into the
467 * array. Before the xritag can be used it needs to be adjusted
468 * by subtracting the xribase.
470 * Returns sglq ponter = success, NULL = Failure.
472 static struct lpfc_sglq *
473 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
476 struct lpfc_sglq *sglq;
477 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
478 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
480 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
481 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
486 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
487 * @phba: Pointer to HBA context object.
488 * @xritag: XRI value.
490 * This function returns the sglq pointer from the array of acive
491 * sglq's. The xritag that is passed in is used to index into the
492 * array. Before the xritag can be used it needs to be adjusted
493 * by subtracting the xribase.
495 * Returns sglq ponter = success, NULL = Failure.
497 static struct lpfc_sglq *
498 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
501 struct lpfc_sglq *sglq;
502 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
503 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
505 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
510 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
511 * @phba: Pointer to HBA context object.
513 * This function is called with hbalock held. This function
514 * Gets a new driver sglq object from the sglq list. If the
515 * list is not empty then it is successful, it returns pointer to the newly
516 * allocated sglq object else it returns NULL.
518 static struct lpfc_sglq *
519 __lpfc_sli_get_sglq(struct lpfc_hba *phba)
521 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
522 struct lpfc_sglq *sglq = NULL;
524 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
527 adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
528 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
533 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
534 * @phba: Pointer to HBA context object.
536 * This function is called with no lock held. This function
537 * allocates a new driver iocb object from the iocb pool. If the
538 * allocation is successful, it returns pointer to the newly
539 * allocated iocb object else it returns NULL.
542 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
544 struct lpfc_iocbq * iocbq = NULL;
545 unsigned long iflags;
547 spin_lock_irqsave(&phba->hbalock, iflags);
548 iocbq = __lpfc_sli_get_iocbq(phba);
549 spin_unlock_irqrestore(&phba->hbalock, iflags);
554 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
555 * @phba: Pointer to HBA context object.
556 * @iocbq: Pointer to driver iocb object.
558 * This function is called with hbalock held to release driver
559 * iocb object to the iocb pool. The iotag in the iocb object
560 * does not change for each use of the iocb object. This function
561 * clears all other fields of the iocb object when it is freed.
562 * The sqlq structure that holds the xritag and phys and virtual
563 * mappings for the scatter gather list is retrieved from the
564 * active array of sglq. The get of the sglq pointer also clears
565 * the entry in the array. If the status of the IO indiactes that
566 * this IO was aborted then the sglq entry it put on the
567 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
568 * IO has good status or fails for any other reason then the sglq
569 * entry is added to the free list (lpfc_sgl_list).
572 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
574 struct lpfc_sglq *sglq;
575 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
578 if (iocbq->sli4_xritag == NO_XRI)
581 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
583 if (iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) {
584 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
586 list_add(&sglq->list,
587 &phba->sli4_hba.lpfc_abts_els_sgl_list);
588 spin_unlock_irqrestore(
589 &phba->sli4_hba.abts_sgl_list_lock, iflag);
591 list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
596 * Clean all volatile data fields, preserve iotag and node struct.
598 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
599 iocbq->sli4_xritag = NO_XRI;
600 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
604 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
605 * @phba: Pointer to HBA context object.
606 * @iocbq: Pointer to driver iocb object.
608 * This function is called with hbalock held to release driver
609 * iocb object to the iocb pool. The iotag in the iocb object
610 * does not change for each use of the iocb object. This function
611 * clears all other fields of the iocb object when it is freed.
614 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
616 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
619 * Clean all volatile data fields, preserve iotag and node struct.
621 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
622 iocbq->sli4_xritag = NO_XRI;
623 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
627 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
628 * @phba: Pointer to HBA context object.
629 * @iocbq: Pointer to driver iocb object.
631 * This function is called with hbalock held to release driver
632 * iocb object to the iocb pool. The iotag in the iocb object
633 * does not change for each use of the iocb object. This function
634 * clears all other fields of the iocb object when it is freed.
637 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
639 phba->__lpfc_sli_release_iocbq(phba, iocbq);
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 no lock held to release the iocb to
651 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
653 unsigned long iflags;
656 * Clean all volatile data fields, preserve iotag and node struct.
658 spin_lock_irqsave(&phba->hbalock, iflags);
659 __lpfc_sli_release_iocbq(phba, iocbq);
660 spin_unlock_irqrestore(&phba->hbalock, iflags);
664 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
665 * @phba: Pointer to HBA context object.
666 * @iocblist: List of IOCBs.
667 * @ulpstatus: ULP status in IOCB command field.
668 * @ulpWord4: ULP word-4 in IOCB command field.
670 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
671 * on the list by invoking the complete callback function associated with the
672 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
676 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
677 uint32_t ulpstatus, uint32_t ulpWord4)
679 struct lpfc_iocbq *piocb;
681 while (!list_empty(iocblist)) {
682 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
684 if (!piocb->iocb_cmpl)
685 lpfc_sli_release_iocbq(phba, piocb);
687 piocb->iocb.ulpStatus = ulpstatus;
688 piocb->iocb.un.ulpWord[4] = ulpWord4;
689 (piocb->iocb_cmpl) (phba, piocb, piocb);
696 * lpfc_sli_iocb_cmd_type - Get the iocb type
697 * @iocb_cmnd: iocb command code.
699 * This function is called by ring event handler function to get the iocb type.
700 * This function translates the iocb command to an iocb command type used to
701 * decide the final disposition of each completed IOCB.
702 * The function returns
703 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
704 * LPFC_SOL_IOCB if it is a solicited iocb completion
705 * LPFC_ABORT_IOCB if it is an abort iocb
706 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
708 * The caller is not required to hold any lock.
710 static lpfc_iocb_type
711 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
713 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
715 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
719 case CMD_XMIT_SEQUENCE_CR:
720 case CMD_XMIT_SEQUENCE_CX:
721 case CMD_XMIT_BCAST_CN:
722 case CMD_XMIT_BCAST_CX:
723 case CMD_ELS_REQUEST_CR:
724 case CMD_ELS_REQUEST_CX:
725 case CMD_CREATE_XRI_CR:
726 case CMD_CREATE_XRI_CX:
728 case CMD_XMIT_ELS_RSP_CX:
730 case CMD_FCP_IWRITE_CR:
731 case CMD_FCP_IWRITE_CX:
732 case CMD_FCP_IREAD_CR:
733 case CMD_FCP_IREAD_CX:
734 case CMD_FCP_ICMND_CR:
735 case CMD_FCP_ICMND_CX:
736 case CMD_FCP_TSEND_CX:
737 case CMD_FCP_TRSP_CX:
738 case CMD_FCP_TRECEIVE_CX:
739 case CMD_FCP_AUTO_TRSP_CX:
740 case CMD_ADAPTER_MSG:
741 case CMD_ADAPTER_DUMP:
742 case CMD_XMIT_SEQUENCE64_CR:
743 case CMD_XMIT_SEQUENCE64_CX:
744 case CMD_XMIT_BCAST64_CN:
745 case CMD_XMIT_BCAST64_CX:
746 case CMD_ELS_REQUEST64_CR:
747 case CMD_ELS_REQUEST64_CX:
748 case CMD_FCP_IWRITE64_CR:
749 case CMD_FCP_IWRITE64_CX:
750 case CMD_FCP_IREAD64_CR:
751 case CMD_FCP_IREAD64_CX:
752 case CMD_FCP_ICMND64_CR:
753 case CMD_FCP_ICMND64_CX:
754 case CMD_FCP_TSEND64_CX:
755 case CMD_FCP_TRSP64_CX:
756 case CMD_FCP_TRECEIVE64_CX:
757 case CMD_GEN_REQUEST64_CR:
758 case CMD_GEN_REQUEST64_CX:
759 case CMD_XMIT_ELS_RSP64_CX:
760 case DSSCMD_IWRITE64_CR:
761 case DSSCMD_IWRITE64_CX:
762 case DSSCMD_IREAD64_CR:
763 case DSSCMD_IREAD64_CX:
764 type = LPFC_SOL_IOCB;
766 case CMD_ABORT_XRI_CN:
767 case CMD_ABORT_XRI_CX:
768 case CMD_CLOSE_XRI_CN:
769 case CMD_CLOSE_XRI_CX:
770 case CMD_XRI_ABORTED_CX:
771 case CMD_ABORT_MXRI64_CN:
772 case CMD_XMIT_BLS_RSP64_CX:
773 type = LPFC_ABORT_IOCB;
775 case CMD_RCV_SEQUENCE_CX:
776 case CMD_RCV_ELS_REQ_CX:
777 case CMD_RCV_SEQUENCE64_CX:
778 case CMD_RCV_ELS_REQ64_CX:
779 case CMD_ASYNC_STATUS:
780 case CMD_IOCB_RCV_SEQ64_CX:
781 case CMD_IOCB_RCV_ELS64_CX:
782 case CMD_IOCB_RCV_CONT64_CX:
783 case CMD_IOCB_RET_XRI64_CX:
784 type = LPFC_UNSOL_IOCB;
786 case CMD_IOCB_XMIT_MSEQ64_CR:
787 case CMD_IOCB_XMIT_MSEQ64_CX:
788 case CMD_IOCB_RCV_SEQ_LIST64_CX:
789 case CMD_IOCB_RCV_ELS_LIST64_CX:
790 case CMD_IOCB_CLOSE_EXTENDED_CN:
791 case CMD_IOCB_ABORT_EXTENDED_CN:
792 case CMD_IOCB_RET_HBQE64_CN:
793 case CMD_IOCB_FCP_IBIDIR64_CR:
794 case CMD_IOCB_FCP_IBIDIR64_CX:
795 case CMD_IOCB_FCP_ITASKMGT64_CX:
796 case CMD_IOCB_LOGENTRY_CN:
797 case CMD_IOCB_LOGENTRY_ASYNC_CN:
798 printk("%s - Unhandled SLI-3 Command x%x\n",
799 __func__, iocb_cmnd);
800 type = LPFC_UNKNOWN_IOCB;
803 type = LPFC_UNKNOWN_IOCB;
811 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
812 * @phba: Pointer to HBA context object.
814 * This function is called from SLI initialization code
815 * to configure every ring of the HBA's SLI interface. The
816 * caller is not required to hold any lock. This function issues
817 * a config_ring mailbox command for each ring.
818 * This function returns zero if successful else returns a negative
822 lpfc_sli_ring_map(struct lpfc_hba *phba)
824 struct lpfc_sli *psli = &phba->sli;
829 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
833 phba->link_state = LPFC_INIT_MBX_CMDS;
834 for (i = 0; i < psli->num_rings; i++) {
835 lpfc_config_ring(phba, i, pmb);
836 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
837 if (rc != MBX_SUCCESS) {
838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
839 "0446 Adapter failed to init (%d), "
840 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
842 rc, pmbox->mbxCommand,
843 pmbox->mbxStatus, i);
844 phba->link_state = LPFC_HBA_ERROR;
849 mempool_free(pmb, phba->mbox_mem_pool);
854 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
855 * @phba: Pointer to HBA context object.
856 * @pring: Pointer to driver SLI ring object.
857 * @piocb: Pointer to the driver iocb object.
859 * This function is called with hbalock held. The function adds the
860 * new iocb to txcmplq of the given ring. This function always returns
861 * 0. If this function is called for ELS ring, this function checks if
862 * there is a vport associated with the ELS command. This function also
863 * starts els_tmofunc timer if this is an ELS command.
866 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
867 struct lpfc_iocbq *piocb)
869 list_add_tail(&piocb->list, &pring->txcmplq);
870 pring->txcmplq_cnt++;
871 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
872 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
873 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
877 mod_timer(&piocb->vport->els_tmofunc,
878 jiffies + HZ * (phba->fc_ratov << 1));
886 * lpfc_sli_ringtx_get - Get first element of the txq
887 * @phba: Pointer to HBA context object.
888 * @pring: Pointer to driver SLI ring object.
890 * This function is called with hbalock held to get next
891 * iocb in txq of the given ring. If there is any iocb in
892 * the txq, the function returns first iocb in the list after
893 * removing the iocb from the list, else it returns NULL.
895 static struct lpfc_iocbq *
896 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
898 struct lpfc_iocbq *cmd_iocb;
900 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
901 if (cmd_iocb != NULL)
907 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
908 * @phba: Pointer to HBA context object.
909 * @pring: Pointer to driver SLI ring object.
911 * This function is called with hbalock held and the caller must post the
912 * iocb without releasing the lock. If the caller releases the lock,
913 * iocb slot returned by the function is not guaranteed to be available.
914 * The function returns pointer to the next available iocb slot if there
915 * is available slot in the ring, else it returns NULL.
916 * If the get index of the ring is ahead of the put index, the function
917 * will post an error attention event to the worker thread to take the
918 * HBA to offline state.
921 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
923 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
924 uint32_t max_cmd_idx = pring->numCiocb;
925 if ((pring->next_cmdidx == pring->cmdidx) &&
926 (++pring->next_cmdidx >= max_cmd_idx))
927 pring->next_cmdidx = 0;
929 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
931 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
933 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
935 "0315 Ring %d issue: portCmdGet %d "
936 "is bigger than cmd ring %d\n",
938 pring->local_getidx, max_cmd_idx);
940 phba->link_state = LPFC_HBA_ERROR;
942 * All error attention handlers are posted to
945 phba->work_ha |= HA_ERATT;
946 phba->work_hs = HS_FFER3;
948 lpfc_worker_wake_up(phba);
953 if (pring->local_getidx == pring->next_cmdidx)
957 return lpfc_cmd_iocb(phba, pring);
961 * lpfc_sli_next_iotag - Get an iotag for the iocb
962 * @phba: Pointer to HBA context object.
963 * @iocbq: Pointer to driver iocb object.
965 * This function gets an iotag for the iocb. If there is no unused iotag and
966 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
967 * array and assigns a new iotag.
968 * The function returns the allocated iotag if successful, else returns zero.
969 * Zero is not a valid iotag.
970 * The caller is not required to hold any lock.
973 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
975 struct lpfc_iocbq **new_arr;
976 struct lpfc_iocbq **old_arr;
978 struct lpfc_sli *psli = &phba->sli;
981 spin_lock_irq(&phba->hbalock);
982 iotag = psli->last_iotag;
983 if(++iotag < psli->iocbq_lookup_len) {
984 psli->last_iotag = iotag;
985 psli->iocbq_lookup[iotag] = iocbq;
986 spin_unlock_irq(&phba->hbalock);
987 iocbq->iotag = iotag;
989 } else if (psli->iocbq_lookup_len < (0xffff
990 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
991 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
992 spin_unlock_irq(&phba->hbalock);
993 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
996 spin_lock_irq(&phba->hbalock);
997 old_arr = psli->iocbq_lookup;
998 if (new_len <= psli->iocbq_lookup_len) {
999 /* highly unprobable case */
1001 iotag = psli->last_iotag;
1002 if(++iotag < psli->iocbq_lookup_len) {
1003 psli->last_iotag = iotag;
1004 psli->iocbq_lookup[iotag] = iocbq;
1005 spin_unlock_irq(&phba->hbalock);
1006 iocbq->iotag = iotag;
1009 spin_unlock_irq(&phba->hbalock);
1012 if (psli->iocbq_lookup)
1013 memcpy(new_arr, old_arr,
1014 ((psli->last_iotag + 1) *
1015 sizeof (struct lpfc_iocbq *)));
1016 psli->iocbq_lookup = new_arr;
1017 psli->iocbq_lookup_len = new_len;
1018 psli->last_iotag = iotag;
1019 psli->iocbq_lookup[iotag] = iocbq;
1020 spin_unlock_irq(&phba->hbalock);
1021 iocbq->iotag = iotag;
1026 spin_unlock_irq(&phba->hbalock);
1028 lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
1029 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1036 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1037 * @phba: Pointer to HBA context object.
1038 * @pring: Pointer to driver SLI ring object.
1039 * @iocb: Pointer to iocb slot in the ring.
1040 * @nextiocb: Pointer to driver iocb object which need to be
1041 * posted to firmware.
1043 * This function is called with hbalock held to post a new iocb to
1044 * the firmware. This function copies the new iocb to ring iocb slot and
1045 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1046 * a completion call back for this iocb else the function will free the
1050 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1051 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1056 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1059 if (pring->ringno == LPFC_ELS_RING) {
1060 lpfc_debugfs_slow_ring_trc(phba,
1061 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1062 *(((uint32_t *) &nextiocb->iocb) + 4),
1063 *(((uint32_t *) &nextiocb->iocb) + 6),
1064 *(((uint32_t *) &nextiocb->iocb) + 7));
1068 * Issue iocb command to adapter
1070 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1072 pring->stats.iocb_cmd++;
1075 * If there is no completion routine to call, we can release the
1076 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1077 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1079 if (nextiocb->iocb_cmpl)
1080 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1082 __lpfc_sli_release_iocbq(phba, nextiocb);
1085 * Let the HBA know what IOCB slot will be the next one the
1086 * driver will put a command into.
1088 pring->cmdidx = pring->next_cmdidx;
1089 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1093 * lpfc_sli_update_full_ring - Update the chip attention register
1094 * @phba: Pointer to HBA context object.
1095 * @pring: Pointer to driver SLI ring object.
1097 * The caller is not required to hold any lock for calling this function.
1098 * This function updates the chip attention bits for the ring to inform firmware
1099 * that there are pending work to be done for this ring and requests an
1100 * interrupt when there is space available in the ring. This function is
1101 * called when the driver is unable to post more iocbs to the ring due
1102 * to unavailability of space in the ring.
1105 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1107 int ringno = pring->ringno;
1109 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1114 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1115 * The HBA will tell us when an IOCB entry is available.
1117 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1118 readl(phba->CAregaddr); /* flush */
1120 pring->stats.iocb_cmd_full++;
1124 * lpfc_sli_update_ring - Update chip attention register
1125 * @phba: Pointer to HBA context object.
1126 * @pring: Pointer to driver SLI ring object.
1128 * This function updates the chip attention register bit for the
1129 * given ring to inform HBA that there is more work to be done
1130 * in this ring. The caller is not required to hold any lock.
1133 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1135 int ringno = pring->ringno;
1138 * Tell the HBA that there is work to do in this ring.
1140 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1142 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1143 readl(phba->CAregaddr); /* flush */
1148 * lpfc_sli_resume_iocb - Process iocbs in the txq
1149 * @phba: Pointer to HBA context object.
1150 * @pring: Pointer to driver SLI ring object.
1152 * This function is called with hbalock held to post pending iocbs
1153 * in the txq to the firmware. This function is called when driver
1154 * detects space available in the ring.
1157 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1160 struct lpfc_iocbq *nextiocb;
1164 * (a) there is anything on the txq to send
1166 * (c) link attention events can be processed (fcp ring only)
1167 * (d) IOCB processing is not blocked by the outstanding mbox command.
1169 if (pring->txq_cnt &&
1170 lpfc_is_link_up(phba) &&
1171 (pring->ringno != phba->sli.fcp_ring ||
1172 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1174 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1175 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1176 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1179 lpfc_sli_update_ring(phba, pring);
1181 lpfc_sli_update_full_ring(phba, pring);
1188 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1189 * @phba: Pointer to HBA context object.
1190 * @hbqno: HBQ number.
1192 * This function is called with hbalock held to get the next
1193 * available slot for the given HBQ. If there is free slot
1194 * available for the HBQ it will return pointer to the next available
1195 * HBQ entry else it will return NULL.
1197 static struct lpfc_hbq_entry *
1198 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1200 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1202 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1203 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1204 hbqp->next_hbqPutIdx = 0;
1206 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1207 uint32_t raw_index = phba->hbq_get[hbqno];
1208 uint32_t getidx = le32_to_cpu(raw_index);
1210 hbqp->local_hbqGetIdx = getidx;
1212 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1213 lpfc_printf_log(phba, KERN_ERR,
1214 LOG_SLI | LOG_VPORT,
1215 "1802 HBQ %d: local_hbqGetIdx "
1216 "%u is > than hbqp->entry_count %u\n",
1217 hbqno, hbqp->local_hbqGetIdx,
1220 phba->link_state = LPFC_HBA_ERROR;
1224 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1228 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1233 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1234 * @phba: Pointer to HBA context object.
1236 * This function is called with no lock held to free all the
1237 * hbq buffers while uninitializing the SLI interface. It also
1238 * frees the HBQ buffers returned by the firmware but not yet
1239 * processed by the upper layers.
1242 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1244 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1245 struct hbq_dmabuf *hbq_buf;
1246 unsigned long flags;
1250 hbq_count = lpfc_sli_hbq_count();
1251 /* Return all memory used by all HBQs */
1252 spin_lock_irqsave(&phba->hbalock, flags);
1253 for (i = 0; i < hbq_count; ++i) {
1254 list_for_each_entry_safe(dmabuf, next_dmabuf,
1255 &phba->hbqs[i].hbq_buffer_list, list) {
1256 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1257 list_del(&hbq_buf->dbuf.list);
1258 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1260 phba->hbqs[i].buffer_count = 0;
1262 /* Return all HBQ buffer that are in-fly */
1263 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1265 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1266 list_del(&hbq_buf->dbuf.list);
1267 if (hbq_buf->tag == -1) {
1268 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1271 hbqno = hbq_buf->tag >> 16;
1272 if (hbqno >= LPFC_MAX_HBQS)
1273 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1276 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1281 /* Mark the HBQs not in use */
1282 phba->hbq_in_use = 0;
1283 spin_unlock_irqrestore(&phba->hbalock, flags);
1287 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1288 * @phba: Pointer to HBA context object.
1289 * @hbqno: HBQ number.
1290 * @hbq_buf: Pointer to HBQ buffer.
1292 * This function is called with the hbalock held to post a
1293 * hbq buffer to the firmware. If the function finds an empty
1294 * slot in the HBQ, it will post the buffer. The function will return
1295 * pointer to the hbq entry if it successfully post the buffer
1296 * else it will return NULL.
1299 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1300 struct hbq_dmabuf *hbq_buf)
1302 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1306 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1307 * @phba: Pointer to HBA context object.
1308 * @hbqno: HBQ number.
1309 * @hbq_buf: Pointer to HBQ buffer.
1311 * This function is called with the hbalock held to post a hbq buffer to the
1312 * firmware. If the function finds an empty slot in the HBQ, it will post the
1313 * buffer and place it on the hbq_buffer_list. The function will return zero if
1314 * it successfully post the buffer else it will return an error.
1317 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1318 struct hbq_dmabuf *hbq_buf)
1320 struct lpfc_hbq_entry *hbqe;
1321 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1323 /* Get next HBQ entry slot to use */
1324 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1326 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1328 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1329 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1330 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1331 hbqe->bde.tus.f.bdeFlags = 0;
1332 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1333 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1335 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1336 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1338 readl(phba->hbq_put + hbqno);
1339 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1346 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1347 * @phba: Pointer to HBA context object.
1348 * @hbqno: HBQ number.
1349 * @hbq_buf: Pointer to HBQ buffer.
1351 * This function is called with the hbalock held to post an RQE to the SLI4
1352 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1353 * the hbq_buffer_list and return zero, otherwise it will return an error.
1356 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1357 struct hbq_dmabuf *hbq_buf)
1360 struct lpfc_rqe hrqe;
1361 struct lpfc_rqe drqe;
1363 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1364 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1365 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1366 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1367 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1372 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1376 /* HBQ for ELS and CT traffic. */
1377 static struct lpfc_hbq_init lpfc_els_hbq = {
1382 .ring_mask = (1 << LPFC_ELS_RING),
1388 /* HBQ for the extra ring if needed */
1389 static struct lpfc_hbq_init lpfc_extra_hbq = {
1394 .ring_mask = (1 << LPFC_EXTRA_RING),
1401 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1407 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1408 * @phba: Pointer to HBA context object.
1409 * @hbqno: HBQ number.
1410 * @count: Number of HBQ buffers to be posted.
1412 * This function is called with no lock held to post more hbq buffers to the
1413 * given HBQ. The function returns the number of HBQ buffers successfully
1417 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1419 uint32_t i, posted = 0;
1420 unsigned long flags;
1421 struct hbq_dmabuf *hbq_buffer;
1422 LIST_HEAD(hbq_buf_list);
1423 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1426 if ((phba->hbqs[hbqno].buffer_count + count) >
1427 lpfc_hbq_defs[hbqno]->entry_count)
1428 count = lpfc_hbq_defs[hbqno]->entry_count -
1429 phba->hbqs[hbqno].buffer_count;
1432 /* Allocate HBQ entries */
1433 for (i = 0; i < count; i++) {
1434 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1437 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1439 /* Check whether HBQ is still in use */
1440 spin_lock_irqsave(&phba->hbalock, flags);
1441 if (!phba->hbq_in_use)
1443 while (!list_empty(&hbq_buf_list)) {
1444 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1446 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1448 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1449 phba->hbqs[hbqno].buffer_count++;
1452 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1454 spin_unlock_irqrestore(&phba->hbalock, flags);
1457 spin_unlock_irqrestore(&phba->hbalock, flags);
1458 while (!list_empty(&hbq_buf_list)) {
1459 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1461 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1467 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1468 * @phba: Pointer to HBA context object.
1471 * This function posts more buffers to the HBQ. This function
1472 * is called with no lock held. The function returns the number of HBQ entries
1473 * successfully allocated.
1476 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1478 if (phba->sli_rev == LPFC_SLI_REV4)
1481 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1482 lpfc_hbq_defs[qno]->add_count);
1486 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1487 * @phba: Pointer to HBA context object.
1488 * @qno: HBQ queue number.
1490 * This function is called from SLI initialization code path with
1491 * no lock held to post initial HBQ buffers to firmware. The
1492 * function returns the number of HBQ entries successfully allocated.
1495 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1497 if (phba->sli_rev == LPFC_SLI_REV4)
1498 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1499 lpfc_hbq_defs[qno]->entry_count);
1501 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1502 lpfc_hbq_defs[qno]->init_count);
1506 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1507 * @phba: Pointer to HBA context object.
1508 * @hbqno: HBQ number.
1510 * This function removes the first hbq buffer on an hbq list and returns a
1511 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1513 static struct hbq_dmabuf *
1514 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1516 struct lpfc_dmabuf *d_buf;
1518 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1521 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1525 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1526 * @phba: Pointer to HBA context object.
1527 * @tag: Tag of the hbq buffer.
1529 * This function is called with hbalock held. This function searches
1530 * for the hbq buffer associated with the given tag in the hbq buffer
1531 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1534 static struct hbq_dmabuf *
1535 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1537 struct lpfc_dmabuf *d_buf;
1538 struct hbq_dmabuf *hbq_buf;
1542 if (hbqno >= LPFC_MAX_HBQS)
1545 spin_lock_irq(&phba->hbalock);
1546 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1547 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1548 if (hbq_buf->tag == tag) {
1549 spin_unlock_irq(&phba->hbalock);
1553 spin_unlock_irq(&phba->hbalock);
1554 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
1555 "1803 Bad hbq tag. Data: x%x x%x\n",
1556 tag, phba->hbqs[tag >> 16].buffer_count);
1561 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1562 * @phba: Pointer to HBA context object.
1563 * @hbq_buffer: Pointer to HBQ buffer.
1565 * This function is called with hbalock. This function gives back
1566 * the hbq buffer to firmware. If the HBQ does not have space to
1567 * post the buffer, it will free the buffer.
1570 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
1575 hbqno = hbq_buffer->tag >> 16;
1576 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
1577 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1582 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1583 * @mbxCommand: mailbox command code.
1585 * This function is called by the mailbox event handler function to verify
1586 * that the completed mailbox command is a legitimate mailbox command. If the
1587 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1588 * and the mailbox event handler will take the HBA offline.
1591 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1595 switch (mbxCommand) {
1599 case MBX_WRITE_VPARMS:
1600 case MBX_RUN_BIU_DIAG:
1603 case MBX_CONFIG_LINK:
1604 case MBX_CONFIG_RING:
1605 case MBX_RESET_RING:
1606 case MBX_READ_CONFIG:
1607 case MBX_READ_RCONFIG:
1608 case MBX_READ_SPARM:
1609 case MBX_READ_STATUS:
1613 case MBX_READ_LNK_STAT:
1615 case MBX_UNREG_LOGIN:
1618 case MBX_DUMP_MEMORY:
1619 case MBX_DUMP_CONTEXT:
1622 case MBX_UPDATE_CFG:
1624 case MBX_DEL_LD_ENTRY:
1625 case MBX_RUN_PROGRAM:
1627 case MBX_SET_VARIABLE:
1628 case MBX_UNREG_D_ID:
1629 case MBX_KILL_BOARD:
1630 case MBX_CONFIG_FARP:
1633 case MBX_RUN_BIU_DIAG64:
1634 case MBX_CONFIG_PORT:
1635 case MBX_READ_SPARM64:
1636 case MBX_READ_RPI64:
1637 case MBX_REG_LOGIN64:
1641 case MBX_LOAD_EXP_ROM:
1642 case MBX_ASYNCEVT_ENABLE:
1646 case MBX_PORT_CAPABILITIES:
1647 case MBX_PORT_IOV_CONTROL:
1648 case MBX_SLI4_CONFIG:
1649 case MBX_SLI4_REQ_FTRS:
1651 case MBX_UNREG_FCFI:
1656 case MBX_RESUME_RPI:
1667 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
1668 * @phba: Pointer to HBA context object.
1669 * @pmboxq: Pointer to mailbox command.
1671 * This is completion handler function for mailbox commands issued from
1672 * lpfc_sli_issue_mbox_wait function. This function is called by the
1673 * mailbox event handler function with no lock held. This function
1674 * will wake up thread waiting on the wait queue pointed by context1
1678 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
1680 wait_queue_head_t *pdone_q;
1681 unsigned long drvr_flag;
1684 * If pdone_q is empty, the driver thread gave up waiting and
1685 * continued running.
1687 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
1688 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1689 pdone_q = (wait_queue_head_t *) pmboxq->context1;
1691 wake_up_interruptible(pdone_q);
1692 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1698 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
1699 * @phba: Pointer to HBA context object.
1700 * @pmb: Pointer to mailbox object.
1702 * This function is the default mailbox completion handler. It
1703 * frees the memory resources associated with the completed mailbox
1704 * command. If the completed command is a REG_LOGIN mailbox command,
1705 * this function will issue a UREG_LOGIN to re-claim the RPI.
1708 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1710 struct lpfc_dmabuf *mp;
1713 struct lpfc_vport *vport = pmb->vport;
1715 mp = (struct lpfc_dmabuf *) (pmb->context1);
1718 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1722 if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
1723 (phba->sli_rev == LPFC_SLI_REV4))
1724 lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
1727 * If a REG_LOGIN succeeded after node is destroyed or node
1728 * is in re-discovery driver need to cleanup the RPI.
1730 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1731 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
1732 !pmb->u.mb.mbxStatus) {
1733 rpi = pmb->u.mb.un.varWords[0];
1734 vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
1735 lpfc_unreg_login(phba, vpi, rpi, pmb);
1736 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1737 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1738 if (rc != MBX_NOT_FINISHED)
1742 /* Unreg VPI, if the REG_VPI succeed after VLink failure */
1743 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
1744 !(phba->pport->load_flag & FC_UNLOADING) &&
1745 !pmb->u.mb.mbxStatus) {
1746 lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb);
1748 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1749 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1750 if (rc != MBX_NOT_FINISHED)
1754 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
1755 lpfc_sli4_mbox_cmd_free(phba, pmb);
1757 mempool_free(pmb, phba->mbox_mem_pool);
1761 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
1762 * @phba: Pointer to HBA context object.
1764 * This function is called with no lock held. This function processes all
1765 * the completed mailbox commands and gives it to upper layers. The interrupt
1766 * service routine processes mailbox completion interrupt and adds completed
1767 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1768 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1769 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1770 * function returns the mailbox commands to the upper layer by calling the
1771 * completion handler function of each mailbox.
1774 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
1781 phba->sli.slistat.mbox_event++;
1783 /* Get all completed mailboxe buffers into the cmplq */
1784 spin_lock_irq(&phba->hbalock);
1785 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
1786 spin_unlock_irq(&phba->hbalock);
1788 /* Get a Mailbox buffer to setup mailbox commands for callback */
1790 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
1796 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
1798 lpfc_debugfs_disc_trc(pmb->vport,
1799 LPFC_DISC_TRC_MBOX_VPORT,
1800 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1801 (uint32_t)pmbox->mbxCommand,
1802 pmbox->un.varWords[0],
1803 pmbox->un.varWords[1]);
1806 lpfc_debugfs_disc_trc(phba->pport,
1808 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1809 (uint32_t)pmbox->mbxCommand,
1810 pmbox->un.varWords[0],
1811 pmbox->un.varWords[1]);
1816 * It is a fatal error if unknown mbox command completion.
1818 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
1820 /* Unknown mailbox command compl */
1821 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
1822 "(%d):0323 Unknown Mailbox command "
1824 pmb->vport ? pmb->vport->vpi : 0,
1826 lpfc_sli4_mbox_opcode_get(phba, pmb));
1827 phba->link_state = LPFC_HBA_ERROR;
1828 phba->work_hs = HS_FFER3;
1829 lpfc_handle_eratt(phba);
1833 if (pmbox->mbxStatus) {
1834 phba->sli.slistat.mbox_stat_err++;
1835 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
1836 /* Mbox cmd cmpl error - RETRYing */
1837 lpfc_printf_log(phba, KERN_INFO,
1839 "(%d):0305 Mbox cmd cmpl "
1840 "error - RETRYing Data: x%x "
1841 "(x%x) x%x x%x x%x\n",
1842 pmb->vport ? pmb->vport->vpi :0,
1844 lpfc_sli4_mbox_opcode_get(phba,
1847 pmbox->un.varWords[0],
1848 pmb->vport->port_state);
1849 pmbox->mbxStatus = 0;
1850 pmbox->mbxOwner = OWN_HOST;
1851 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1852 if (rc != MBX_NOT_FINISHED)
1857 /* Mailbox cmd <cmd> Cmpl <cmpl> */
1858 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
1859 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
1860 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
1861 pmb->vport ? pmb->vport->vpi : 0,
1863 lpfc_sli4_mbox_opcode_get(phba, pmb),
1865 *((uint32_t *) pmbox),
1866 pmbox->un.varWords[0],
1867 pmbox->un.varWords[1],
1868 pmbox->un.varWords[2],
1869 pmbox->un.varWords[3],
1870 pmbox->un.varWords[4],
1871 pmbox->un.varWords[5],
1872 pmbox->un.varWords[6],
1873 pmbox->un.varWords[7]);
1876 pmb->mbox_cmpl(phba,pmb);
1882 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
1883 * @phba: Pointer to HBA context object.
1884 * @pring: Pointer to driver SLI ring object.
1887 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1888 * is set in the tag the buffer is posted for a particular exchange,
1889 * the function will return the buffer without replacing the buffer.
1890 * If the buffer is for unsolicited ELS or CT traffic, this function
1891 * returns the buffer and also posts another buffer to the firmware.
1893 static struct lpfc_dmabuf *
1894 lpfc_sli_get_buff(struct lpfc_hba *phba,
1895 struct lpfc_sli_ring *pring,
1898 struct hbq_dmabuf *hbq_entry;
1900 if (tag & QUE_BUFTAG_BIT)
1901 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
1902 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
1905 return &hbq_entry->dbuf;
1909 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1910 * @phba: Pointer to HBA context object.
1911 * @pring: Pointer to driver SLI ring object.
1912 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1913 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1914 * @fch_type: the type for the first frame of the sequence.
1916 * This function is called with no lock held. This function uses the r_ctl and
1917 * type of the received sequence to find the correct callback function to call
1918 * to process the sequence.
1921 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1922 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
1927 /* unSolicited Responses */
1928 if (pring->prt[0].profile) {
1929 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
1930 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
1934 /* We must search, based on rctl / type
1935 for the right routine */
1936 for (i = 0; i < pring->num_mask; i++) {
1937 if ((pring->prt[i].rctl == fch_r_ctl) &&
1938 (pring->prt[i].type == fch_type)) {
1939 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
1940 (pring->prt[i].lpfc_sli_rcv_unsol_event)
1941 (phba, pring, saveq);
1949 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
1950 * @phba: Pointer to HBA context object.
1951 * @pring: Pointer to driver SLI ring object.
1952 * @saveq: Pointer to the unsolicited iocb.
1954 * This function is called with no lock held by the ring event handler
1955 * when there is an unsolicited iocb posted to the response ring by the
1956 * firmware. This function gets the buffer associated with the iocbs
1957 * and calls the event handler for the ring. This function handles both
1958 * qring buffers and hbq buffers.
1959 * When the function returns 1 the caller can free the iocb object otherwise
1960 * upper layer functions will free the iocb objects.
1963 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1964 struct lpfc_iocbq *saveq)
1968 uint32_t Rctl, Type;
1970 struct lpfc_iocbq *iocbq;
1971 struct lpfc_dmabuf *dmzbuf;
1974 irsp = &(saveq->iocb);
1976 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
1977 if (pring->lpfc_sli_rcv_async_status)
1978 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
1980 lpfc_printf_log(phba,
1983 "0316 Ring %d handler: unexpected "
1984 "ASYNC_STATUS iocb received evt_code "
1987 irsp->un.asyncstat.evt_code);
1991 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
1992 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
1993 if (irsp->ulpBdeCount > 0) {
1994 dmzbuf = lpfc_sli_get_buff(phba, pring,
1995 irsp->un.ulpWord[3]);
1996 lpfc_in_buf_free(phba, dmzbuf);
1999 if (irsp->ulpBdeCount > 1) {
2000 dmzbuf = lpfc_sli_get_buff(phba, pring,
2001 irsp->unsli3.sli3Words[3]);
2002 lpfc_in_buf_free(phba, dmzbuf);
2005 if (irsp->ulpBdeCount > 2) {
2006 dmzbuf = lpfc_sli_get_buff(phba, pring,
2007 irsp->unsli3.sli3Words[7]);
2008 lpfc_in_buf_free(phba, dmzbuf);
2014 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2015 if (irsp->ulpBdeCount != 0) {
2016 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2017 irsp->un.ulpWord[3]);
2018 if (!saveq->context2)
2019 lpfc_printf_log(phba,
2022 "0341 Ring %d Cannot find buffer for "
2023 "an unsolicited iocb. tag 0x%x\n",
2025 irsp->un.ulpWord[3]);
2027 if (irsp->ulpBdeCount == 2) {
2028 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2029 irsp->unsli3.sli3Words[7]);
2030 if (!saveq->context3)
2031 lpfc_printf_log(phba,
2034 "0342 Ring %d Cannot find buffer for an"
2035 " unsolicited iocb. tag 0x%x\n",
2037 irsp->unsli3.sli3Words[7]);
2039 list_for_each_entry(iocbq, &saveq->list, list) {
2040 irsp = &(iocbq->iocb);
2041 if (irsp->ulpBdeCount != 0) {
2042 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2043 irsp->un.ulpWord[3]);
2044 if (!iocbq->context2)
2045 lpfc_printf_log(phba,
2048 "0343 Ring %d Cannot find "
2049 "buffer for an unsolicited iocb"
2050 ". tag 0x%x\n", pring->ringno,
2051 irsp->un.ulpWord[3]);
2053 if (irsp->ulpBdeCount == 2) {
2054 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2055 irsp->unsli3.sli3Words[7]);
2056 if (!iocbq->context3)
2057 lpfc_printf_log(phba,
2060 "0344 Ring %d Cannot find "
2061 "buffer for an unsolicited "
2064 irsp->unsli3.sli3Words[7]);
2068 if (irsp->ulpBdeCount != 0 &&
2069 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2070 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2073 /* search continue save q for same XRI */
2074 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2075 if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
2076 list_add_tail(&saveq->list, &iocbq->list);
2082 list_add_tail(&saveq->clist,
2083 &pring->iocb_continue_saveq);
2084 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2085 list_del_init(&iocbq->clist);
2087 irsp = &(saveq->iocb);
2091 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2092 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2093 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2094 Rctl = FC_RCTL_ELS_REQ;
2097 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2098 Rctl = w5p->hcsw.Rctl;
2099 Type = w5p->hcsw.Type;
2101 /* Firmware Workaround */
2102 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2103 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2104 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2105 Rctl = FC_RCTL_ELS_REQ;
2107 w5p->hcsw.Rctl = Rctl;
2108 w5p->hcsw.Type = Type;
2112 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2113 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2114 "0313 Ring %d handler: unexpected Rctl x%x "
2115 "Type x%x received\n",
2116 pring->ringno, Rctl, Type);
2122 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2123 * @phba: Pointer to HBA context object.
2124 * @pring: Pointer to driver SLI ring object.
2125 * @prspiocb: Pointer to response iocb object.
2127 * This function looks up the iocb_lookup table to get the command iocb
2128 * corresponding to the given response iocb using the iotag of the
2129 * response iocb. This function is called with the hbalock held.
2130 * This function returns the command iocb object if it finds the command
2131 * iocb else returns NULL.
2133 static struct lpfc_iocbq *
2134 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2135 struct lpfc_sli_ring *pring,
2136 struct lpfc_iocbq *prspiocb)
2138 struct lpfc_iocbq *cmd_iocb = NULL;
2141 iotag = prspiocb->iocb.ulpIoTag;
2143 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2144 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2145 list_del_init(&cmd_iocb->list);
2146 pring->txcmplq_cnt--;
2150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2151 "0317 iotag x%x is out off "
2152 "range: max iotag x%x wd0 x%x\n",
2153 iotag, phba->sli.last_iotag,
2154 *(((uint32_t *) &prspiocb->iocb) + 7));
2159 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2160 * @phba: Pointer to HBA context object.
2161 * @pring: Pointer to driver SLI ring object.
2164 * This function looks up the iocb_lookup table to get the command iocb
2165 * corresponding to the given iotag. This function is called with the
2167 * This function returns the command iocb object if it finds the command
2168 * iocb else returns NULL.
2170 static struct lpfc_iocbq *
2171 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2172 struct lpfc_sli_ring *pring, uint16_t iotag)
2174 struct lpfc_iocbq *cmd_iocb;
2176 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2177 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2178 list_del_init(&cmd_iocb->list);
2179 pring->txcmplq_cnt--;
2183 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2184 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2185 iotag, phba->sli.last_iotag);
2190 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2191 * @phba: Pointer to HBA context object.
2192 * @pring: Pointer to driver SLI ring object.
2193 * @saveq: Pointer to the response iocb to be processed.
2195 * This function is called by the ring event handler for non-fcp
2196 * rings when there is a new response iocb in the response ring.
2197 * The caller is not required to hold any locks. This function
2198 * gets the command iocb associated with the response iocb and
2199 * calls the completion handler for the command iocb. If there
2200 * is no completion handler, the function will free the resources
2201 * associated with command iocb. If the response iocb is for
2202 * an already aborted command iocb, the status of the completion
2203 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2204 * This function always returns 1.
2207 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2208 struct lpfc_iocbq *saveq)
2210 struct lpfc_iocbq *cmdiocbp;
2212 unsigned long iflag;
2214 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2215 spin_lock_irqsave(&phba->hbalock, iflag);
2216 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2217 spin_unlock_irqrestore(&phba->hbalock, iflag);
2220 if (cmdiocbp->iocb_cmpl) {
2222 * If an ELS command failed send an event to mgmt
2225 if (saveq->iocb.ulpStatus &&
2226 (pring->ringno == LPFC_ELS_RING) &&
2227 (cmdiocbp->iocb.ulpCommand ==
2228 CMD_ELS_REQUEST64_CR))
2229 lpfc_send_els_failure_event(phba,
2233 * Post all ELS completions to the worker thread.
2234 * All other are passed to the completion callback.
2236 if (pring->ringno == LPFC_ELS_RING) {
2237 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2238 (cmdiocbp->iocb_flag &
2239 LPFC_DRIVER_ABORTED)) {
2240 spin_lock_irqsave(&phba->hbalock,
2242 cmdiocbp->iocb_flag &=
2243 ~LPFC_DRIVER_ABORTED;
2244 spin_unlock_irqrestore(&phba->hbalock,
2246 saveq->iocb.ulpStatus =
2247 IOSTAT_LOCAL_REJECT;
2248 saveq->iocb.un.ulpWord[4] =
2251 /* Firmware could still be in progress
2252 * of DMAing payload, so don't free data
2253 * buffer till after a hbeat.
2255 spin_lock_irqsave(&phba->hbalock,
2257 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2258 spin_unlock_irqrestore(&phba->hbalock,
2261 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2262 (saveq->iocb_flag & LPFC_EXCHANGE_BUSY)) {
2263 /* Set cmdiocb flag for the exchange
2264 * busy so sgl (xri) will not be
2265 * released until the abort xri is
2266 * received from hba, clear the
2267 * LPFC_DRIVER_ABORTED bit in case
2268 * it was driver initiated abort.
2270 spin_lock_irqsave(&phba->hbalock,
2272 cmdiocbp->iocb_flag &=
2273 ~LPFC_DRIVER_ABORTED;
2274 cmdiocbp->iocb_flag |=
2276 spin_unlock_irqrestore(&phba->hbalock,
2278 cmdiocbp->iocb.ulpStatus =
2279 IOSTAT_LOCAL_REJECT;
2280 cmdiocbp->iocb.un.ulpWord[4] =
2281 IOERR_ABORT_REQUESTED;
2283 * For SLI4, irsiocb contains NO_XRI
2284 * in sli_xritag, it shall not affect
2285 * releasing sgl (xri) process.
2287 saveq->iocb.ulpStatus =
2288 IOSTAT_LOCAL_REJECT;
2289 saveq->iocb.un.ulpWord[4] =
2291 spin_lock_irqsave(&phba->hbalock,
2293 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2294 spin_unlock_irqrestore(&phba->hbalock,
2298 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2300 lpfc_sli_release_iocbq(phba, cmdiocbp);
2303 * Unknown initiating command based on the response iotag.
2304 * This could be the case on the ELS ring because of
2307 if (pring->ringno != LPFC_ELS_RING) {
2309 * Ring <ringno> handler: unexpected completion IoTag
2312 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2313 "0322 Ring %d handler: "
2314 "unexpected completion IoTag x%x "
2315 "Data: x%x x%x x%x x%x\n",
2317 saveq->iocb.ulpIoTag,
2318 saveq->iocb.ulpStatus,
2319 saveq->iocb.un.ulpWord[4],
2320 saveq->iocb.ulpCommand,
2321 saveq->iocb.ulpContext);
2329 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2330 * @phba: Pointer to HBA context object.
2331 * @pring: Pointer to driver SLI ring object.
2333 * This function is called from the iocb ring event handlers when
2334 * put pointer is ahead of the get pointer for a ring. This function signal
2335 * an error attention condition to the worker thread and the worker
2336 * thread will transition the HBA to offline state.
2339 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2341 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2343 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2344 * rsp ring <portRspMax>
2346 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2347 "0312 Ring %d handler: portRspPut %d "
2348 "is bigger than rsp ring %d\n",
2349 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2352 phba->link_state = LPFC_HBA_ERROR;
2355 * All error attention handlers are posted to
2358 phba->work_ha |= HA_ERATT;
2359 phba->work_hs = HS_FFER3;
2361 lpfc_worker_wake_up(phba);
2367 * lpfc_poll_eratt - Error attention polling timer timeout handler
2368 * @ptr: Pointer to address of HBA context object.
2370 * This function is invoked by the Error Attention polling timer when the
2371 * timer times out. It will check the SLI Error Attention register for
2372 * possible attention events. If so, it will post an Error Attention event
2373 * and wake up worker thread to process it. Otherwise, it will set up the
2374 * Error Attention polling timer for the next poll.
2376 void lpfc_poll_eratt(unsigned long ptr)
2378 struct lpfc_hba *phba;
2381 phba = (struct lpfc_hba *)ptr;
2383 /* Check chip HA register for error event */
2384 eratt = lpfc_sli_check_eratt(phba);
2387 /* Tell the worker thread there is work to do */
2388 lpfc_worker_wake_up(phba);
2390 /* Restart the timer for next eratt poll */
2391 mod_timer(&phba->eratt_poll, jiffies +
2392 HZ * LPFC_ERATT_POLL_INTERVAL);
2398 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2399 * @phba: Pointer to HBA context object.
2400 * @pring: Pointer to driver SLI ring object.
2401 * @mask: Host attention register mask for this ring.
2403 * This function is called from the interrupt context when there is a ring
2404 * event for the fcp ring. The caller does not hold any lock.
2405 * The function processes each response iocb in the response ring until it
2406 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2407 * LE bit set. The function will call the completion handler of the command iocb
2408 * if the response iocb indicates a completion for a command iocb or it is
2409 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2410 * function if this is an unsolicited iocb.
2411 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2412 * to check it explicitly.
2415 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2416 struct lpfc_sli_ring *pring, uint32_t mask)
2418 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2419 IOCB_t *irsp = NULL;
2420 IOCB_t *entry = NULL;
2421 struct lpfc_iocbq *cmdiocbq = NULL;
2422 struct lpfc_iocbq rspiocbq;
2424 uint32_t portRspPut, portRspMax;
2426 lpfc_iocb_type type;
2427 unsigned long iflag;
2428 uint32_t rsp_cmpl = 0;
2430 spin_lock_irqsave(&phba->hbalock, iflag);
2431 pring->stats.iocb_event++;
2434 * The next available response entry should never exceed the maximum
2435 * entries. If it does, treat it as an adapter hardware error.
2437 portRspMax = pring->numRiocb;
2438 portRspPut = le32_to_cpu(pgp->rspPutInx);
2439 if (unlikely(portRspPut >= portRspMax)) {
2440 lpfc_sli_rsp_pointers_error(phba, pring);
2441 spin_unlock_irqrestore(&phba->hbalock, iflag);
2444 if (phba->fcp_ring_in_use) {
2445 spin_unlock_irqrestore(&phba->hbalock, iflag);
2448 phba->fcp_ring_in_use = 1;
2451 while (pring->rspidx != portRspPut) {
2453 * Fetch an entry off the ring and copy it into a local data
2454 * structure. The copy involves a byte-swap since the
2455 * network byte order and pci byte orders are different.
2457 entry = lpfc_resp_iocb(phba, pring);
2458 phba->last_completion_time = jiffies;
2460 if (++pring->rspidx >= portRspMax)
2463 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2464 (uint32_t *) &rspiocbq.iocb,
2465 phba->iocb_rsp_size);
2466 INIT_LIST_HEAD(&(rspiocbq.list));
2467 irsp = &rspiocbq.iocb;
2469 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2470 pring->stats.iocb_rsp++;
2473 if (unlikely(irsp->ulpStatus)) {
2475 * If resource errors reported from HBA, reduce
2476 * queuedepths of the SCSI device.
2478 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2479 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2480 spin_unlock_irqrestore(&phba->hbalock, iflag);
2481 phba->lpfc_rampdown_queue_depth(phba);
2482 spin_lock_irqsave(&phba->hbalock, iflag);
2485 /* Rsp ring <ringno> error: IOCB */
2486 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2487 "0336 Rsp Ring %d error: IOCB Data: "
2488 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2490 irsp->un.ulpWord[0],
2491 irsp->un.ulpWord[1],
2492 irsp->un.ulpWord[2],
2493 irsp->un.ulpWord[3],
2494 irsp->un.ulpWord[4],
2495 irsp->un.ulpWord[5],
2496 *(uint32_t *)&irsp->un1,
2497 *((uint32_t *)&irsp->un1 + 1));
2501 case LPFC_ABORT_IOCB:
2504 * Idle exchange closed via ABTS from port. No iocb
2505 * resources need to be recovered.
2507 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
2508 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2509 "0333 IOCB cmd 0x%x"
2510 " processed. Skipping"
2516 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2518 if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
2519 spin_unlock_irqrestore(&phba->hbalock,
2521 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2523 spin_lock_irqsave(&phba->hbalock,
2527 case LPFC_UNSOL_IOCB:
2528 spin_unlock_irqrestore(&phba->hbalock, iflag);
2529 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
2530 spin_lock_irqsave(&phba->hbalock, iflag);
2533 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2534 char adaptermsg[LPFC_MAX_ADPTMSG];
2535 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2536 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2538 dev_warn(&((phba->pcidev)->dev),
2540 phba->brd_no, adaptermsg);
2542 /* Unknown IOCB command */
2543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2544 "0334 Unknown IOCB command "
2545 "Data: x%x, x%x x%x x%x x%x\n",
2546 type, irsp->ulpCommand,
2555 * The response IOCB has been processed. Update the ring
2556 * pointer in SLIM. If the port response put pointer has not
2557 * been updated, sync the pgp->rspPutInx and fetch the new port
2558 * response put pointer.
2560 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
2562 if (pring->rspidx == portRspPut)
2563 portRspPut = le32_to_cpu(pgp->rspPutInx);
2566 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
2567 pring->stats.iocb_rsp_full++;
2568 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2569 writel(status, phba->CAregaddr);
2570 readl(phba->CAregaddr);
2572 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2573 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2574 pring->stats.iocb_cmd_empty++;
2576 /* Force update of the local copy of cmdGetInx */
2577 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2578 lpfc_sli_resume_iocb(phba, pring);
2580 if ((pring->lpfc_sli_cmd_available))
2581 (pring->lpfc_sli_cmd_available) (phba, pring);
2585 phba->fcp_ring_in_use = 0;
2586 spin_unlock_irqrestore(&phba->hbalock, iflag);
2591 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2592 * @phba: Pointer to HBA context object.
2593 * @pring: Pointer to driver SLI ring object.
2594 * @rspiocbp: Pointer to driver response IOCB object.
2596 * This function is called from the worker thread when there is a slow-path
2597 * response IOCB to process. This function chains all the response iocbs until
2598 * seeing the iocb with the LE bit set. The function will call
2599 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2600 * completion of a command iocb. The function will call the
2601 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2602 * The function frees the resources or calls the completion handler if this
2603 * iocb is an abort completion. The function returns NULL when the response
2604 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2605 * this function shall chain the iocb on to the iocb_continueq and return the
2606 * response iocb passed in.
2608 static struct lpfc_iocbq *
2609 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2610 struct lpfc_iocbq *rspiocbp)
2612 struct lpfc_iocbq *saveq;
2613 struct lpfc_iocbq *cmdiocbp;
2614 struct lpfc_iocbq *next_iocb;
2615 IOCB_t *irsp = NULL;
2616 uint32_t free_saveq;
2617 uint8_t iocb_cmd_type;
2618 lpfc_iocb_type type;
2619 unsigned long iflag;
2622 spin_lock_irqsave(&phba->hbalock, iflag);
2623 /* First add the response iocb to the countinueq list */
2624 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
2625 pring->iocb_continueq_cnt++;
2627 /* Now, determine whetehr the list is completed for processing */
2628 irsp = &rspiocbp->iocb;
2631 * By default, the driver expects to free all resources
2632 * associated with this iocb completion.
2635 saveq = list_get_first(&pring->iocb_continueq,
2636 struct lpfc_iocbq, list);
2637 irsp = &(saveq->iocb);
2638 list_del_init(&pring->iocb_continueq);
2639 pring->iocb_continueq_cnt = 0;
2641 pring->stats.iocb_rsp++;
2644 * If resource errors reported from HBA, reduce
2645 * queuedepths of the SCSI device.
2647 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2648 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2649 spin_unlock_irqrestore(&phba->hbalock, iflag);
2650 phba->lpfc_rampdown_queue_depth(phba);
2651 spin_lock_irqsave(&phba->hbalock, iflag);
2654 if (irsp->ulpStatus) {
2655 /* Rsp ring <ringno> error: IOCB */
2656 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2657 "0328 Rsp Ring %d error: "
2662 "x%x x%x x%x x%x\n",
2664 irsp->un.ulpWord[0],
2665 irsp->un.ulpWord[1],
2666 irsp->un.ulpWord[2],
2667 irsp->un.ulpWord[3],
2668 irsp->un.ulpWord[4],
2669 irsp->un.ulpWord[5],
2670 *(((uint32_t *) irsp) + 6),
2671 *(((uint32_t *) irsp) + 7),
2672 *(((uint32_t *) irsp) + 8),
2673 *(((uint32_t *) irsp) + 9),
2674 *(((uint32_t *) irsp) + 10),
2675 *(((uint32_t *) irsp) + 11),
2676 *(((uint32_t *) irsp) + 12),
2677 *(((uint32_t *) irsp) + 13),
2678 *(((uint32_t *) irsp) + 14),
2679 *(((uint32_t *) irsp) + 15));
2683 * Fetch the IOCB command type and call the correct completion
2684 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2685 * get freed back to the lpfc_iocb_list by the discovery
2688 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
2689 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
2692 spin_unlock_irqrestore(&phba->hbalock, iflag);
2693 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
2694 spin_lock_irqsave(&phba->hbalock, iflag);
2697 case LPFC_UNSOL_IOCB:
2698 spin_unlock_irqrestore(&phba->hbalock, iflag);
2699 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
2700 spin_lock_irqsave(&phba->hbalock, iflag);
2705 case LPFC_ABORT_IOCB:
2707 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
2708 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
2711 /* Call the specified completion routine */
2712 if (cmdiocbp->iocb_cmpl) {
2713 spin_unlock_irqrestore(&phba->hbalock,
2715 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
2717 spin_lock_irqsave(&phba->hbalock,
2720 __lpfc_sli_release_iocbq(phba,
2725 case LPFC_UNKNOWN_IOCB:
2726 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2727 char adaptermsg[LPFC_MAX_ADPTMSG];
2728 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2729 memcpy(&adaptermsg[0], (uint8_t *)irsp,
2731 dev_warn(&((phba->pcidev)->dev),
2733 phba->brd_no, adaptermsg);
2735 /* Unknown IOCB command */
2736 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2737 "0335 Unknown IOCB "
2738 "command Data: x%x "
2749 list_for_each_entry_safe(rspiocbp, next_iocb,
2750 &saveq->list, list) {
2751 list_del(&rspiocbp->list);
2752 __lpfc_sli_release_iocbq(phba, rspiocbp);
2754 __lpfc_sli_release_iocbq(phba, saveq);
2758 spin_unlock_irqrestore(&phba->hbalock, iflag);
2763 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
2764 * @phba: Pointer to HBA context object.
2765 * @pring: Pointer to driver SLI ring object.
2766 * @mask: Host attention register mask for this ring.
2768 * This routine wraps the actual slow_ring event process routine from the
2769 * API jump table function pointer from the lpfc_hba struct.
2772 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
2773 struct lpfc_sli_ring *pring, uint32_t mask)
2775 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
2779 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2780 * @phba: Pointer to HBA context object.
2781 * @pring: Pointer to driver SLI ring object.
2782 * @mask: Host attention register mask for this ring.
2784 * This function is called from the worker thread when there is a ring event
2785 * for non-fcp rings. The caller does not hold any lock. The function will
2786 * remove each response iocb in the response ring and calls the handle
2787 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2790 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
2791 struct lpfc_sli_ring *pring, uint32_t mask)
2793 struct lpfc_pgp *pgp;
2795 IOCB_t *irsp = NULL;
2796 struct lpfc_iocbq *rspiocbp = NULL;
2797 uint32_t portRspPut, portRspMax;
2798 unsigned long iflag;
2801 pgp = &phba->port_gp[pring->ringno];
2802 spin_lock_irqsave(&phba->hbalock, iflag);
2803 pring->stats.iocb_event++;
2806 * The next available response entry should never exceed the maximum
2807 * entries. If it does, treat it as an adapter hardware error.
2809 portRspMax = pring->numRiocb;
2810 portRspPut = le32_to_cpu(pgp->rspPutInx);
2811 if (portRspPut >= portRspMax) {
2813 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2814 * rsp ring <portRspMax>
2816 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2817 "0303 Ring %d handler: portRspPut %d "
2818 "is bigger than rsp ring %d\n",
2819 pring->ringno, portRspPut, portRspMax);
2821 phba->link_state = LPFC_HBA_ERROR;
2822 spin_unlock_irqrestore(&phba->hbalock, iflag);
2824 phba->work_hs = HS_FFER3;
2825 lpfc_handle_eratt(phba);
2831 while (pring->rspidx != portRspPut) {
2833 * Build a completion list and call the appropriate handler.
2834 * The process is to get the next available response iocb, get
2835 * a free iocb from the list, copy the response data into the
2836 * free iocb, insert to the continuation list, and update the
2837 * next response index to slim. This process makes response
2838 * iocb's in the ring available to DMA as fast as possible but
2839 * pays a penalty for a copy operation. Since the iocb is
2840 * only 32 bytes, this penalty is considered small relative to
2841 * the PCI reads for register values and a slim write. When
2842 * the ulpLe field is set, the entire Command has been
2845 entry = lpfc_resp_iocb(phba, pring);
2847 phba->last_completion_time = jiffies;
2848 rspiocbp = __lpfc_sli_get_iocbq(phba);
2849 if (rspiocbp == NULL) {
2850 printk(KERN_ERR "%s: out of buffers! Failing "
2851 "completion.\n", __func__);
2855 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
2856 phba->iocb_rsp_size);
2857 irsp = &rspiocbp->iocb;
2859 if (++pring->rspidx >= portRspMax)
2862 if (pring->ringno == LPFC_ELS_RING) {
2863 lpfc_debugfs_slow_ring_trc(phba,
2864 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2865 *(((uint32_t *) irsp) + 4),
2866 *(((uint32_t *) irsp) + 6),
2867 *(((uint32_t *) irsp) + 7));
2870 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
2872 spin_unlock_irqrestore(&phba->hbalock, iflag);
2873 /* Handle the response IOCB */
2874 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
2875 spin_lock_irqsave(&phba->hbalock, iflag);
2878 * If the port response put pointer has not been updated, sync
2879 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2880 * response put pointer.
2882 if (pring->rspidx == portRspPut) {
2883 portRspPut = le32_to_cpu(pgp->rspPutInx);
2885 } /* while (pring->rspidx != portRspPut) */
2887 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
2888 /* At least one response entry has been freed */
2889 pring->stats.iocb_rsp_full++;
2890 /* SET RxRE_RSP in Chip Att register */
2891 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2892 writel(status, phba->CAregaddr);
2893 readl(phba->CAregaddr); /* flush */
2895 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2896 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2897 pring->stats.iocb_cmd_empty++;
2899 /* Force update of the local copy of cmdGetInx */
2900 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2901 lpfc_sli_resume_iocb(phba, pring);
2903 if ((pring->lpfc_sli_cmd_available))
2904 (pring->lpfc_sli_cmd_available) (phba, pring);
2908 spin_unlock_irqrestore(&phba->hbalock, iflag);
2913 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2914 * @phba: Pointer to HBA context object.
2915 * @pring: Pointer to driver SLI ring object.
2916 * @mask: Host attention register mask for this ring.
2918 * This function is called from the worker thread when there is a pending
2919 * ELS response iocb on the driver internal slow-path response iocb worker
2920 * queue. The caller does not hold any lock. The function will remove each
2921 * response iocb from the response worker queue and calls the handle
2922 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2925 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
2926 struct lpfc_sli_ring *pring, uint32_t mask)
2928 struct lpfc_iocbq *irspiocbq;
2929 struct hbq_dmabuf *dmabuf;
2930 struct lpfc_cq_event *cq_event;
2931 unsigned long iflag;
2933 spin_lock_irqsave(&phba->hbalock, iflag);
2934 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
2935 spin_unlock_irqrestore(&phba->hbalock, iflag);
2936 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
2937 /* Get the response iocb from the head of work queue */
2938 spin_lock_irqsave(&phba->hbalock, iflag);
2939 list_remove_head(&phba->sli4_hba.sp_queue_event,
2940 cq_event, struct lpfc_cq_event, list);
2941 spin_unlock_irqrestore(&phba->hbalock, iflag);
2943 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
2944 case CQE_CODE_COMPL_WQE:
2945 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
2947 /* Translate ELS WCQE to response IOCBQ */
2948 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
2951 lpfc_sli_sp_handle_rspiocb(phba, pring,
2954 case CQE_CODE_RECEIVE:
2955 dmabuf = container_of(cq_event, struct hbq_dmabuf,
2957 lpfc_sli4_handle_received_buffer(phba, dmabuf);
2966 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
2967 * @phba: Pointer to HBA context object.
2968 * @pring: Pointer to driver SLI ring object.
2970 * This function aborts all iocbs in the given ring and frees all the iocb
2971 * objects in txq. This function issues an abort iocb for all the iocb commands
2972 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
2973 * the return of this function. The caller is not required to hold any locks.
2976 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2978 LIST_HEAD(completions);
2979 struct lpfc_iocbq *iocb, *next_iocb;
2981 if (pring->ringno == LPFC_ELS_RING) {
2982 lpfc_fabric_abort_hba(phba);
2985 /* Error everything on txq and txcmplq
2988 spin_lock_irq(&phba->hbalock);
2989 list_splice_init(&pring->txq, &completions);
2992 /* Next issue ABTS for everything on the txcmplq */
2993 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
2994 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2996 spin_unlock_irq(&phba->hbalock);
2998 /* Cancel all the IOCBs from the completions list */
2999 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3004 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3005 * @phba: Pointer to HBA context object.
3007 * This function flushes all iocbs in the fcp ring and frees all the iocb
3008 * objects in txq and txcmplq. This function will not issue abort iocbs
3009 * for all the iocb commands in txcmplq, they will just be returned with
3010 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3011 * slot has been permanently disabled.
3014 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3018 struct lpfc_sli *psli = &phba->sli;
3019 struct lpfc_sli_ring *pring;
3021 /* Currently, only one fcp ring */
3022 pring = &psli->ring[psli->fcp_ring];
3024 spin_lock_irq(&phba->hbalock);
3025 /* Retrieve everything on txq */
3026 list_splice_init(&pring->txq, &txq);
3029 /* Retrieve everything on the txcmplq */
3030 list_splice_init(&pring->txcmplq, &txcmplq);
3031 pring->txcmplq_cnt = 0;
3032 spin_unlock_irq(&phba->hbalock);
3035 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3038 /* Flush the txcmpq */
3039 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3044 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3045 * @phba: Pointer to HBA context object.
3046 * @mask: Bit mask to be checked.
3048 * This function reads the host status register and compares
3049 * with the provided bit mask to check if HBA completed
3050 * the restart. This function will wait in a loop for the
3051 * HBA to complete restart. If the HBA does not restart within
3052 * 15 iterations, the function will reset the HBA again. The
3053 * function returns 1 when HBA fail to restart otherwise returns
3057 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3063 /* Read the HBA Host Status Register */
3064 status = readl(phba->HSregaddr);
3067 * Check status register every 100ms for 5 retries, then every
3068 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3069 * every 2.5 sec for 4.
3070 * Break our of the loop if errors occurred during init.
3072 while (((status & mask) != mask) &&
3073 !(status & HS_FFERM) &&
3085 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3086 lpfc_sli_brdrestart(phba);
3088 /* Read the HBA Host Status Register */
3089 status = readl(phba->HSregaddr);
3092 /* Check to see if any errors occurred during init */
3093 if ((status & HS_FFERM) || (i >= 20)) {
3094 phba->link_state = LPFC_HBA_ERROR;
3102 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3103 * @phba: Pointer to HBA context object.
3104 * @mask: Bit mask to be checked.
3106 * This function checks the host status register to check if HBA is
3107 * ready. This function will wait in a loop for the HBA to be ready
3108 * If the HBA is not ready , the function will will reset the HBA PCI
3109 * function again. The function returns 1 when HBA fail to be ready
3110 * otherwise returns zero.
3113 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3118 /* Read the HBA Host Status Register */
3119 status = lpfc_sli4_post_status_check(phba);
3122 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3123 lpfc_sli_brdrestart(phba);
3124 status = lpfc_sli4_post_status_check(phba);
3127 /* Check to see if any errors occurred during init */
3129 phba->link_state = LPFC_HBA_ERROR;
3132 phba->sli4_hba.intr_enable = 0;
3138 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3139 * @phba: Pointer to HBA context object.
3140 * @mask: Bit mask to be checked.
3142 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3143 * from the API jump table function pointer from the lpfc_hba struct.
3146 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3148 return phba->lpfc_sli_brdready(phba, mask);
3151 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3154 * lpfc_reset_barrier - Make HBA ready for HBA reset
3155 * @phba: Pointer to HBA context object.
3157 * This function is called before resetting an HBA. This
3158 * function requests HBA to quiesce DMAs before a reset.
3160 void lpfc_reset_barrier(struct lpfc_hba *phba)
3162 uint32_t __iomem *resp_buf;
3163 uint32_t __iomem *mbox_buf;
3164 volatile uint32_t mbox;
3169 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3170 if (hdrtype != 0x80 ||
3171 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3172 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3176 * Tell the other part of the chip to suspend temporarily all
3179 resp_buf = phba->MBslimaddr;
3181 /* Disable the error attention */
3182 hc_copy = readl(phba->HCregaddr);
3183 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3184 readl(phba->HCregaddr); /* flush */
3185 phba->link_flag |= LS_IGNORE_ERATT;
3187 if (readl(phba->HAregaddr) & HA_ERATT) {
3188 /* Clear Chip error bit */
3189 writel(HA_ERATT, phba->HAregaddr);
3190 phba->pport->stopped = 1;
3194 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3195 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3197 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3198 mbox_buf = phba->MBslimaddr;
3199 writel(mbox, mbox_buf);
3202 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3205 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
3206 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3207 phba->pport->stopped)
3213 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3214 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3219 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3222 if (readl(phba->HAregaddr) & HA_ERATT) {
3223 writel(HA_ERATT, phba->HAregaddr);
3224 phba->pport->stopped = 1;
3228 phba->link_flag &= ~LS_IGNORE_ERATT;
3229 writel(hc_copy, phba->HCregaddr);
3230 readl(phba->HCregaddr); /* flush */
3234 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3235 * @phba: Pointer to HBA context object.
3237 * This function issues a kill_board mailbox command and waits for
3238 * the error attention interrupt. This function is called for stopping
3239 * the firmware processing. The caller is not required to hold any
3240 * locks. This function calls lpfc_hba_down_post function to free
3241 * any pending commands after the kill. The function will return 1 when it
3242 * fails to kill the board else will return 0.
3245 lpfc_sli_brdkill(struct lpfc_hba *phba)
3247 struct lpfc_sli *psli;
3257 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3258 "0329 Kill HBA Data: x%x x%x\n",
3259 phba->pport->port_state, psli->sli_flag);
3261 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3265 /* Disable the error attention */
3266 spin_lock_irq(&phba->hbalock);
3267 status = readl(phba->HCregaddr);
3268 status &= ~HC_ERINT_ENA;
3269 writel(status, phba->HCregaddr);
3270 readl(phba->HCregaddr); /* flush */
3271 phba->link_flag |= LS_IGNORE_ERATT;
3272 spin_unlock_irq(&phba->hbalock);
3274 lpfc_kill_board(phba, pmb);
3275 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3276 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3278 if (retval != MBX_SUCCESS) {
3279 if (retval != MBX_BUSY)
3280 mempool_free(pmb, phba->mbox_mem_pool);
3281 spin_lock_irq(&phba->hbalock);
3282 phba->link_flag &= ~LS_IGNORE_ERATT;
3283 spin_unlock_irq(&phba->hbalock);
3287 spin_lock_irq(&phba->hbalock);
3288 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3289 spin_unlock_irq(&phba->hbalock);
3291 mempool_free(pmb, phba->mbox_mem_pool);
3293 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3294 * attention every 100ms for 3 seconds. If we don't get ERATT after
3295 * 3 seconds we still set HBA_ERROR state because the status of the
3296 * board is now undefined.
3298 ha_copy = readl(phba->HAregaddr);
3300 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3302 ha_copy = readl(phba->HAregaddr);
3305 del_timer_sync(&psli->mbox_tmo);
3306 if (ha_copy & HA_ERATT) {
3307 writel(HA_ERATT, phba->HAregaddr);
3308 phba->pport->stopped = 1;
3310 spin_lock_irq(&phba->hbalock);
3311 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3312 psli->mbox_active = NULL;
3313 phba->link_flag &= ~LS_IGNORE_ERATT;
3314 spin_unlock_irq(&phba->hbalock);
3316 lpfc_hba_down_post(phba);
3317 phba->link_state = LPFC_HBA_ERROR;
3319 return ha_copy & HA_ERATT ? 0 : 1;
3323 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3324 * @phba: Pointer to HBA context object.
3326 * This function resets the HBA by writing HC_INITFF to the control
3327 * register. After the HBA resets, this function resets all the iocb ring
3328 * indices. This function disables PCI layer parity checking during
3330 * This function returns 0 always.
3331 * The caller is not required to hold any locks.
3334 lpfc_sli_brdreset(struct lpfc_hba *phba)
3336 struct lpfc_sli *psli;
3337 struct lpfc_sli_ring *pring;
3344 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3345 "0325 Reset HBA Data: x%x x%x\n",
3346 phba->pport->port_state, psli->sli_flag);
3348 /* perform board reset */
3349 phba->fc_eventTag = 0;
3350 phba->link_events = 0;
3351 phba->pport->fc_myDID = 0;
3352 phba->pport->fc_prevDID = 0;
3354 /* Turn off parity checking and serr during the physical reset */
3355 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3356 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3358 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3360 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3362 /* Now toggle INITFF bit in the Host Control Register */
3363 writel(HC_INITFF, phba->HCregaddr);
3365 readl(phba->HCregaddr); /* flush */
3366 writel(0, phba->HCregaddr);
3367 readl(phba->HCregaddr); /* flush */
3369 /* Restore PCI cmd register */
3370 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3372 /* Initialize relevant SLI info */
3373 for (i = 0; i < psli->num_rings; i++) {
3374 pring = &psli->ring[i];
3377 pring->next_cmdidx = 0;
3378 pring->local_getidx = 0;
3380 pring->missbufcnt = 0;
3383 phba->link_state = LPFC_WARM_START;
3388 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3389 * @phba: Pointer to HBA context object.
3391 * This function resets a SLI4 HBA. This function disables PCI layer parity
3392 * checking during resets the device. The caller is not required to hold
3395 * This function returns 0 always.
3398 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3400 struct lpfc_sli *psli = &phba->sli;
3405 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3406 "0295 Reset HBA Data: x%x x%x\n",
3407 phba->pport->port_state, psli->sli_flag);
3409 /* perform board reset */
3410 phba->fc_eventTag = 0;
3411 phba->link_events = 0;
3412 phba->pport->fc_myDID = 0;
3413 phba->pport->fc_prevDID = 0;
3415 /* Turn off parity checking and serr during the physical reset */
3416 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3417 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3419 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3421 spin_lock_irq(&phba->hbalock);
3422 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3423 phba->fcf.fcf_flag = 0;
3424 /* Clean up the child queue list for the CQs */
3425 list_del_init(&phba->sli4_hba.mbx_wq->list);
3426 list_del_init(&phba->sli4_hba.els_wq->list);
3427 list_del_init(&phba->sli4_hba.hdr_rq->list);
3428 list_del_init(&phba->sli4_hba.dat_rq->list);
3429 list_del_init(&phba->sli4_hba.mbx_cq->list);
3430 list_del_init(&phba->sli4_hba.els_cq->list);
3431 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3432 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3433 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3434 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3435 spin_unlock_irq(&phba->hbalock);
3437 /* Now physically reset the device */
3438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3439 "0389 Performing PCI function reset!\n");
3440 /* Perform FCoE PCI function reset */
3441 lpfc_pci_function_reset(phba);
3447 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3448 * @phba: Pointer to HBA context object.
3450 * This function is called in the SLI initialization code path to
3451 * restart the HBA. The caller is not required to hold any lock.
3452 * This function writes MBX_RESTART mailbox command to the SLIM and
3453 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3454 * function to free any pending commands. The function enables
3455 * POST only during the first initialization. The function returns zero.
3456 * The function does not guarantee completion of MBX_RESTART mailbox
3457 * command before the return of this function.
3460 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
3463 struct lpfc_sli *psli;
3464 volatile uint32_t word0;
3465 void __iomem *to_slim;
3466 uint32_t hba_aer_enabled;
3468 spin_lock_irq(&phba->hbalock);
3470 /* Take PCIe device Advanced Error Reporting (AER) state */
3471 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3476 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3477 "0337 Restart HBA Data: x%x x%x\n",
3478 phba->pport->port_state, psli->sli_flag);
3481 mb = (MAILBOX_t *) &word0;
3482 mb->mbxCommand = MBX_RESTART;
3485 lpfc_reset_barrier(phba);
3487 to_slim = phba->MBslimaddr;
3488 writel(*(uint32_t *) mb, to_slim);
3489 readl(to_slim); /* flush */
3491 /* Only skip post after fc_ffinit is completed */
3492 if (phba->pport->port_state)
3493 word0 = 1; /* This is really setting up word1 */
3495 word0 = 0; /* This is really setting up word1 */
3496 to_slim = phba->MBslimaddr + sizeof (uint32_t);
3497 writel(*(uint32_t *) mb, to_slim);
3498 readl(to_slim); /* flush */
3500 lpfc_sli_brdreset(phba);
3501 phba->pport->stopped = 0;
3502 phba->link_state = LPFC_INIT_START;
3504 spin_unlock_irq(&phba->hbalock);
3506 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3507 psli->stats_start = get_seconds();
3509 /* Give the INITFF and Post time to settle. */
3512 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3513 if (hba_aer_enabled)
3514 pci_disable_pcie_error_reporting(phba->pcidev);
3516 lpfc_hba_down_post(phba);
3522 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3523 * @phba: Pointer to HBA context object.
3525 * This function is called in the SLI initialization code path to restart
3526 * a SLI4 HBA. The caller is not required to hold any lock.
3527 * At the end of the function, it calls lpfc_hba_down_post function to
3528 * free any pending commands.
3531 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3533 struct lpfc_sli *psli = &phba->sli;
3537 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3538 "0296 Restart HBA Data: x%x x%x\n",
3539 phba->pport->port_state, psli->sli_flag);
3541 lpfc_sli4_brdreset(phba);
3543 spin_lock_irq(&phba->hbalock);
3544 phba->pport->stopped = 0;
3545 phba->link_state = LPFC_INIT_START;
3547 spin_unlock_irq(&phba->hbalock);
3549 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3550 psli->stats_start = get_seconds();
3552 lpfc_hba_down_post(phba);
3558 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3559 * @phba: Pointer to HBA context object.
3561 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3562 * API jump table function pointer from the lpfc_hba struct.
3565 lpfc_sli_brdrestart(struct lpfc_hba *phba)
3567 return phba->lpfc_sli_brdrestart(phba);
3571 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
3572 * @phba: Pointer to HBA context object.
3574 * This function is called after a HBA restart to wait for successful
3575 * restart of the HBA. Successful restart of the HBA is indicated by
3576 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3577 * iteration, the function will restart the HBA again. The function returns
3578 * zero if HBA successfully restarted else returns negative error code.
3581 lpfc_sli_chipset_init(struct lpfc_hba *phba)
3583 uint32_t status, i = 0;
3585 /* Read the HBA Host Status Register */
3586 status = readl(phba->HSregaddr);
3588 /* Check status register to see what current state is */
3590 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
3592 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3593 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3597 /* Adapter failed to init, timeout, status reg
3599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3600 "0436 Adapter failed to init, "
3601 "timeout, status reg x%x, "
3602 "FW Data: A8 x%x AC x%x\n", status,
3603 readl(phba->MBslimaddr + 0xa8),
3604 readl(phba->MBslimaddr + 0xac));
3605 phba->link_state = LPFC_HBA_ERROR;
3609 /* Check to see if any errors occurred during init */
3610 if (status & HS_FFERM) {
3611 /* ERROR: During chipset initialization */
3612 /* Adapter failed to init, chipset, status reg
3614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3615 "0437 Adapter failed to init, "
3616 "chipset, status reg x%x, "
3617 "FW Data: A8 x%x AC x%x\n", status,
3618 readl(phba->MBslimaddr + 0xa8),
3619 readl(phba->MBslimaddr + 0xac));
3620 phba->link_state = LPFC_HBA_ERROR;
3626 } else if (i <= 10) {
3634 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3635 lpfc_sli_brdrestart(phba);
3637 /* Read the HBA Host Status Register */
3638 status = readl(phba->HSregaddr);
3641 /* Check to see if any errors occurred during init */
3642 if (status & HS_FFERM) {
3643 /* ERROR: During chipset initialization */
3644 /* Adapter failed to init, chipset, status reg <status> */
3645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3646 "0438 Adapter failed to init, chipset, "
3648 "FW Data: A8 x%x AC x%x\n", status,
3649 readl(phba->MBslimaddr + 0xa8),
3650 readl(phba->MBslimaddr + 0xac));
3651 phba->link_state = LPFC_HBA_ERROR;
3655 /* Clear all interrupt enable conditions */
3656 writel(0, phba->HCregaddr);
3657 readl(phba->HCregaddr); /* flush */
3659 /* setup host attn register */
3660 writel(0xffffffff, phba->HAregaddr);
3661 readl(phba->HAregaddr); /* flush */
3666 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
3668 * This function calculates and returns the number of HBQs required to be
3672 lpfc_sli_hbq_count(void)
3674 return ARRAY_SIZE(lpfc_hbq_defs);
3678 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
3680 * This function adds the number of hbq entries in every HBQ to get
3681 * the total number of hbq entries required for the HBA and returns
3685 lpfc_sli_hbq_entry_count(void)
3687 int hbq_count = lpfc_sli_hbq_count();
3691 for (i = 0; i < hbq_count; ++i)
3692 count += lpfc_hbq_defs[i]->entry_count;
3697 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
3699 * This function calculates amount of memory required for all hbq entries
3700 * to be configured and returns the total memory required.
3703 lpfc_sli_hbq_size(void)
3705 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
3709 * lpfc_sli_hbq_setup - configure and initialize HBQs
3710 * @phba: Pointer to HBA context object.
3712 * This function is called during the SLI initialization to configure
3713 * all the HBQs and post buffers to the HBQ. The caller is not
3714 * required to hold any locks. This function will return zero if successful
3715 * else it will return negative error code.
3718 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
3720 int hbq_count = lpfc_sli_hbq_count();
3724 uint32_t hbq_entry_index;
3726 /* Get a Mailbox buffer to setup mailbox
3727 * commands for HBA initialization
3729 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3736 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3737 phba->link_state = LPFC_INIT_MBX_CMDS;
3738 phba->hbq_in_use = 1;
3740 hbq_entry_index = 0;
3741 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
3742 phba->hbqs[hbqno].next_hbqPutIdx = 0;
3743 phba->hbqs[hbqno].hbqPutIdx = 0;
3744 phba->hbqs[hbqno].local_hbqGetIdx = 0;
3745 phba->hbqs[hbqno].entry_count =
3746 lpfc_hbq_defs[hbqno]->entry_count;
3747 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
3748 hbq_entry_index, pmb);
3749 hbq_entry_index += phba->hbqs[hbqno].entry_count;
3751 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
3752 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3753 mbxStatus <status>, ring <num> */
3755 lpfc_printf_log(phba, KERN_ERR,
3756 LOG_SLI | LOG_VPORT,
3757 "1805 Adapter failed to init. "
3758 "Data: x%x x%x x%x\n",
3760 pmbox->mbxStatus, hbqno);
3762 phba->link_state = LPFC_HBA_ERROR;
3763 mempool_free(pmb, phba->mbox_mem_pool);
3767 phba->hbq_count = hbq_count;
3769 mempool_free(pmb, phba->mbox_mem_pool);
3771 /* Initially populate or replenish the HBQs */
3772 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
3773 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
3778 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3779 * @phba: Pointer to HBA context object.
3781 * This function is called during the SLI initialization to configure
3782 * all the HBQs and post buffers to the HBQ. The caller is not
3783 * required to hold any locks. This function will return zero if successful
3784 * else it will return negative error code.
3787 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
3789 phba->hbq_in_use = 1;
3790 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
3791 phba->hbq_count = 1;
3792 /* Initially populate or replenish the HBQs */
3793 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
3798 * lpfc_sli_config_port - Issue config port mailbox command
3799 * @phba: Pointer to HBA context object.
3800 * @sli_mode: sli mode - 2/3
3802 * This function is called by the sli intialization code path
3803 * to issue config_port mailbox command. This function restarts the
3804 * HBA firmware and issues a config_port mailbox command to configure
3805 * the SLI interface in the sli mode specified by sli_mode
3806 * variable. The caller is not required to hold any locks.
3807 * The function returns 0 if successful, else returns negative error
3811 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
3814 uint32_t resetcount = 0, rc = 0, done = 0;
3816 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3818 phba->link_state = LPFC_HBA_ERROR;
3822 phba->sli_rev = sli_mode;
3823 while (resetcount < 2 && !done) {
3824 spin_lock_irq(&phba->hbalock);
3825 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
3826 spin_unlock_irq(&phba->hbalock);
3827 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3828 lpfc_sli_brdrestart(phba);
3829 rc = lpfc_sli_chipset_init(phba);
3833 spin_lock_irq(&phba->hbalock);
3834 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3835 spin_unlock_irq(&phba->hbalock);
3838 /* Call pre CONFIG_PORT mailbox command initialization. A
3839 * value of 0 means the call was successful. Any other
3840 * nonzero value is a failure, but if ERESTART is returned,
3841 * the driver may reset the HBA and try again.
3843 rc = lpfc_config_port_prep(phba);
3844 if (rc == -ERESTART) {
3845 phba->link_state = LPFC_LINK_UNKNOWN;
3849 phba->link_state = LPFC_INIT_MBX_CMDS;
3850 lpfc_config_port(phba, pmb);
3851 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
3852 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3853 LPFC_SLI3_HBQ_ENABLED |
3854 LPFC_SLI3_CRP_ENABLED |
3855 LPFC_SLI3_INB_ENABLED |
3856 LPFC_SLI3_BG_ENABLED);
3857 if (rc != MBX_SUCCESS) {
3858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3859 "0442 Adapter failed to init, mbxCmd x%x "
3860 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
3861 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
3862 spin_lock_irq(&phba->hbalock);
3863 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
3864 spin_unlock_irq(&phba->hbalock);
3867 /* Allow asynchronous mailbox command to go through */
3868 spin_lock_irq(&phba->hbalock);
3869 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
3870 spin_unlock_irq(&phba->hbalock);
3876 goto do_prep_failed;
3878 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
3879 if (!pmb->u.mb.un.varCfgPort.cMA) {
3881 goto do_prep_failed;
3883 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
3884 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3885 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
3886 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
3887 phba->max_vpi : phba->max_vports;
3891 if (pmb->u.mb.un.varCfgPort.gdss)
3892 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
3893 if (pmb->u.mb.un.varCfgPort.gerbm)
3894 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
3895 if (pmb->u.mb.un.varCfgPort.gcrp)
3896 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
3897 if (pmb->u.mb.un.varCfgPort.ginb) {
3898 phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
3899 phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
3900 phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
3901 phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
3902 phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
3903 phba->inb_last_counter =
3904 phba->mbox->us.s3_inb_pgp.counter;
3906 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
3907 phba->port_gp = phba->mbox->us.s3_pgp.port;
3908 phba->inb_ha_copy = NULL;
3909 phba->inb_counter = NULL;
3912 if (phba->cfg_enable_bg) {
3913 if (pmb->u.mb.un.varCfgPort.gbg)
3914 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3917 "0443 Adapter did not grant "
3921 phba->hbq_get = NULL;
3922 phba->port_gp = phba->mbox->us.s2.port;
3923 phba->inb_ha_copy = NULL;
3924 phba->inb_counter = NULL;
3928 mempool_free(pmb, phba->mbox_mem_pool);
3934 * lpfc_sli_hba_setup - SLI intialization function
3935 * @phba: Pointer to HBA context object.
3937 * This function is the main SLI intialization function. This function
3938 * is called by the HBA intialization code, HBA reset code and HBA
3939 * error attention handler code. Caller is not required to hold any
3940 * locks. This function issues config_port mailbox command to configure
3941 * the SLI, setup iocb rings and HBQ rings. In the end the function
3942 * calls the config_port_post function to issue init_link mailbox
3943 * command and to start the discovery. The function will return zero
3944 * if successful, else it will return negative error code.
3947 lpfc_sli_hba_setup(struct lpfc_hba *phba)
3952 switch (lpfc_sli_mode) {
3954 if (phba->cfg_enable_npiv) {
3955 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3956 "1824 NPIV enabled: Override lpfc_sli_mode "
3957 "parameter (%d) to auto (0).\n",
3967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3968 "1819 Unrecognized lpfc_sli_mode "
3969 "parameter: %d.\n", lpfc_sli_mode);
3974 rc = lpfc_sli_config_port(phba, mode);
3976 if (rc && lpfc_sli_mode == 3)
3977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3978 "1820 Unable to select SLI-3. "
3979 "Not supported by adapter.\n");
3980 if (rc && mode != 2)
3981 rc = lpfc_sli_config_port(phba, 2);
3983 goto lpfc_sli_hba_setup_error;
3985 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
3986 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
3987 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3989 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3990 "2709 This device supports "
3991 "Advanced Error Reporting (AER)\n");
3992 spin_lock_irq(&phba->hbalock);
3993 phba->hba_flag |= HBA_AER_ENABLED;
3994 spin_unlock_irq(&phba->hbalock);
3996 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3997 "2708 This device does not support "
3998 "Advanced Error Reporting (AER)\n");
3999 phba->cfg_aer_support = 0;
4003 if (phba->sli_rev == 3) {
4004 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4005 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4007 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4008 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4009 phba->sli3_options = 0;
4012 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4013 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4014 phba->sli_rev, phba->max_vpi);
4015 rc = lpfc_sli_ring_map(phba);
4018 goto lpfc_sli_hba_setup_error;
4021 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4022 rc = lpfc_sli_hbq_setup(phba);
4024 goto lpfc_sli_hba_setup_error;
4026 spin_lock_irq(&phba->hbalock);
4027 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4028 spin_unlock_irq(&phba->hbalock);
4030 rc = lpfc_config_port_post(phba);
4032 goto lpfc_sli_hba_setup_error;
4036 lpfc_sli_hba_setup_error:
4037 phba->link_state = LPFC_HBA_ERROR;
4038 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4039 "0445 Firmware initialization failed\n");
4044 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4045 * @phba: Pointer to HBA context object.
4046 * @mboxq: mailbox pointer.
4047 * This function issue a dump mailbox command to read config region
4048 * 23 and parse the records in the region and populate driver
4052 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
4053 LPFC_MBOXQ_t *mboxq)
4055 struct lpfc_dmabuf *mp;
4056 struct lpfc_mqe *mqe;
4057 uint32_t data_length;
4060 /* Program the default value of vlan_id and fc_map */
4061 phba->valid_vlan = 0;
4062 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4063 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4064 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4066 mqe = &mboxq->u.mqe;
4067 if (lpfc_dump_fcoe_param(phba, mboxq))
4070 mp = (struct lpfc_dmabuf *) mboxq->context1;
4071 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4073 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4074 "(%d):2571 Mailbox cmd x%x Status x%x "
4075 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4076 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4077 "CQ: x%x x%x x%x x%x\n",
4078 mboxq->vport ? mboxq->vport->vpi : 0,
4079 bf_get(lpfc_mqe_command, mqe),
4080 bf_get(lpfc_mqe_status, mqe),
4081 mqe->un.mb_words[0], mqe->un.mb_words[1],
4082 mqe->un.mb_words[2], mqe->un.mb_words[3],
4083 mqe->un.mb_words[4], mqe->un.mb_words[5],
4084 mqe->un.mb_words[6], mqe->un.mb_words[7],
4085 mqe->un.mb_words[8], mqe->un.mb_words[9],
4086 mqe->un.mb_words[10], mqe->un.mb_words[11],
4087 mqe->un.mb_words[12], mqe->un.mb_words[13],
4088 mqe->un.mb_words[14], mqe->un.mb_words[15],
4089 mqe->un.mb_words[16], mqe->un.mb_words[50],
4091 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4092 mboxq->mcqe.trailer);
4095 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4099 data_length = mqe->un.mb_words[5];
4100 if (data_length > DMP_RGN23_SIZE) {
4101 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4106 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4107 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4113 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4114 * @phba: pointer to lpfc hba data structure.
4115 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4116 * @vpd: pointer to the memory to hold resulting port vpd data.
4117 * @vpd_size: On input, the number of bytes allocated to @vpd.
4118 * On output, the number of data bytes in @vpd.
4120 * This routine executes a READ_REV SLI4 mailbox command. In
4121 * addition, this routine gets the port vpd data.
4125 * ENOMEM - could not allocated memory.
4128 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4129 uint8_t *vpd, uint32_t *vpd_size)
4133 struct lpfc_dmabuf *dmabuf;
4134 struct lpfc_mqe *mqe;
4136 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4141 * Get a DMA buffer for the vpd data resulting from the READ_REV
4144 dma_size = *vpd_size;
4145 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4149 if (!dmabuf->virt) {
4153 memset(dmabuf->virt, 0, dma_size);
4156 * The SLI4 implementation of READ_REV conflicts at word1,
4157 * bits 31:16 and SLI4 adds vpd functionality not present
4158 * in SLI3. This code corrects the conflicts.
4160 lpfc_read_rev(phba, mboxq);
4161 mqe = &mboxq->u.mqe;
4162 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4163 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4164 mqe->un.read_rev.word1 &= 0x0000FFFF;
4165 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4166 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4168 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4170 dma_free_coherent(&phba->pcidev->dev, dma_size,
4171 dmabuf->virt, dmabuf->phys);
4177 * The available vpd length cannot be bigger than the
4178 * DMA buffer passed to the port. Catch the less than
4179 * case and update the caller's size.
4181 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4182 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4184 lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size);
4185 dma_free_coherent(&phba->pcidev->dev, dma_size,
4186 dmabuf->virt, dmabuf->phys);
4192 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4193 * @phba: pointer to lpfc hba data structure.
4195 * This routine is called to explicitly arm the SLI4 device's completion and
4199 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4203 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4204 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4205 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4206 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4208 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4209 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4210 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4215 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4216 * @phba: Pointer to HBA context object.
4218 * This function is the main SLI4 device intialization PCI function. This
4219 * function is called by the HBA intialization code, HBA reset code and
4220 * HBA error attention handler code. Caller is not required to hold any
4224 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4227 LPFC_MBOXQ_t *mboxq;
4228 struct lpfc_mqe *mqe;
4231 uint32_t ftr_rsp = 0;
4232 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4233 struct lpfc_vport *vport = phba->pport;
4234 struct lpfc_dmabuf *mp;
4236 /* Perform a PCI function reset to start from clean */
4237 rc = lpfc_pci_function_reset(phba);
4241 /* Check the HBA Host Status Register for readyness */
4242 rc = lpfc_sli4_post_status_check(phba);
4246 spin_lock_irq(&phba->hbalock);
4247 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4248 spin_unlock_irq(&phba->hbalock);
4252 * Allocate a single mailbox container for initializing the
4255 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4260 * Continue initialization with default values even if driver failed
4261 * to read FCoE param config regions
4263 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4264 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4265 "2570 Failed to read FCoE parameters\n");
4267 /* Issue READ_REV to collect vpd and FW information. */
4268 vpd_size = PAGE_SIZE;
4269 vpd = kzalloc(vpd_size, GFP_KERNEL);
4275 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
4279 mqe = &mboxq->u.mqe;
4280 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4281 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
4282 phba->hba_flag |= HBA_FCOE_SUPPORT;
4284 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
4286 phba->hba_flag |= HBA_FIP_SUPPORT;
4288 phba->hba_flag &= ~HBA_FIP_SUPPORT;
4290 if (phba->sli_rev != LPFC_SLI_REV4 ||
4291 !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
4292 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4293 "0376 READ_REV Error. SLI Level %d "
4294 "FCoE enabled %d\n",
4295 phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
4300 * Evaluate the read rev and vpd data. Populate the driver
4301 * state with the results. If this routine fails, the failure
4302 * is not fatal as the driver will use generic values.
4304 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4305 if (unlikely(!rc)) {
4306 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4307 "0377 Error %d parsing vpd. "
4308 "Using defaults.\n", rc);
4312 /* Save information as VPD data */
4313 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4314 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4315 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4316 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4318 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4320 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4322 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4324 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4325 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4326 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4327 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4328 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4329 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4330 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4331 "(%d):0380 READ_REV Status x%x "
4332 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4333 mboxq->vport ? mboxq->vport->vpi : 0,
4334 bf_get(lpfc_mqe_status, mqe),
4335 phba->vpd.rev.opFwName,
4336 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4337 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
4340 * Discover the port's supported feature set and match it against the
4343 lpfc_request_features(phba, mboxq);
4344 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4351 * The port must support FCP initiator mode as this is the
4352 * only mode running in the host.
4354 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4355 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4356 "0378 No support for fcpi mode.\n");
4361 * If the port cannot support the host's requested features
4362 * then turn off the global config parameters to disable the
4363 * feature in the driver. This is not a fatal error.
4365 if ((phba->cfg_enable_bg) &&
4366 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4369 if (phba->max_vpi && phba->cfg_enable_npiv &&
4370 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4374 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4375 "0379 Feature Mismatch Data: x%08x %08x "
4376 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4377 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4378 phba->cfg_enable_npiv, phba->max_vpi);
4379 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4380 phba->cfg_enable_bg = 0;
4381 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4382 phba->cfg_enable_npiv = 0;
4385 /* These SLI3 features are assumed in SLI4 */
4386 spin_lock_irq(&phba->hbalock);
4387 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4388 spin_unlock_irq(&phba->hbalock);
4390 /* Read the port's service parameters. */
4391 lpfc_read_sparam(phba, mboxq, vport->vpi);
4392 mboxq->vport = vport;
4393 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4394 mp = (struct lpfc_dmabuf *) mboxq->context1;
4395 if (rc == MBX_SUCCESS) {
4396 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4401 * This memory was allocated by the lpfc_read_sparam routine. Release
4402 * it to the mbuf pool.
4404 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4406 mboxq->context1 = NULL;
4408 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4409 "0382 READ_SPARAM command failed "
4410 "status %d, mbxStatus x%x\n",
4411 rc, bf_get(lpfc_mqe_status, mqe));
4412 phba->link_state = LPFC_HBA_ERROR;
4417 if (phba->cfg_soft_wwnn)
4418 u64_to_wwn(phba->cfg_soft_wwnn,
4419 vport->fc_sparam.nodeName.u.wwn);
4420 if (phba->cfg_soft_wwpn)
4421 u64_to_wwn(phba->cfg_soft_wwpn,
4422 vport->fc_sparam.portName.u.wwn);
4423 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4424 sizeof(struct lpfc_name));
4425 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4426 sizeof(struct lpfc_name));
4428 /* Update the fc_host data structures with new wwn. */
4429 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4430 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4432 /* Register SGL pool to the device using non-embedded mailbox command */
4433 rc = lpfc_sli4_post_sgl_list(phba);
4435 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4436 "0582 Error %d during sgl post operation\n",
4442 /* Register SCSI SGL pool to the device */
4443 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4445 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4446 "0383 Error %d during scsi sgl post "
4448 /* Some Scsi buffers were moved to the abort scsi list */
4449 /* A pci function reset will repost them */
4454 /* Post the rpi header region to the device. */
4455 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4457 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4458 "0393 Error %d during rpi post operation\n",
4464 /* Set up all the queues to the device */
4465 rc = lpfc_sli4_queue_setup(phba);
4467 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4468 "0381 Error %d during queue setup.\n ", rc);
4469 goto out_stop_timers;
4472 /* Arm the CQs and then EQs on device */
4473 lpfc_sli4_arm_cqeq_intr(phba);
4475 /* Indicate device interrupt mode */
4476 phba->sli4_hba.intr_enable = 1;
4478 /* Allow asynchronous mailbox command to go through */
4479 spin_lock_irq(&phba->hbalock);
4480 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4481 spin_unlock_irq(&phba->hbalock);
4483 /* Post receive buffers to the device */
4484 lpfc_sli4_rb_setup(phba);
4486 /* Start the ELS watchdog timer */
4487 mod_timer(&vport->els_tmofunc,
4488 jiffies + HZ * (phba->fc_ratov * 2));
4490 /* Start heart beat timer */
4491 mod_timer(&phba->hb_tmofunc,
4492 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4493 phba->hb_outstanding = 0;
4494 phba->last_completion_time = jiffies;
4496 /* Start error attention (ERATT) polling timer */
4497 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4500 * The port is ready, set the host's link state to LINK_DOWN
4501 * in preparation for link interrupts.
4503 lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
4504 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4505 lpfc_set_loopback_flag(phba);
4506 /* Change driver state to LPFC_LINK_DOWN right before init link */
4507 spin_lock_irq(&phba->hbalock);
4508 phba->link_state = LPFC_LINK_DOWN;
4509 spin_unlock_irq(&phba->hbalock);
4510 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
4511 if (unlikely(rc != MBX_NOT_FINISHED)) {
4517 /* Unset all the queues set up in this routine when error out */
4519 lpfc_sli4_queue_unset(phba);
4523 lpfc_stop_hba_timers(phba);
4527 mempool_free(mboxq, phba->mbox_mem_pool);
4532 * lpfc_mbox_timeout - Timeout call back function for mbox timer
4533 * @ptr: context object - pointer to hba structure.
4535 * This is the callback function for mailbox timer. The mailbox
4536 * timer is armed when a new mailbox command is issued and the timer
4537 * is deleted when the mailbox complete. The function is called by
4538 * the kernel timer code when a mailbox does not complete within
4539 * expected time. This function wakes up the worker thread to
4540 * process the mailbox timeout and returns. All the processing is
4541 * done by the worker thread function lpfc_mbox_timeout_handler.
4544 lpfc_mbox_timeout(unsigned long ptr)
4546 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
4547 unsigned long iflag;
4548 uint32_t tmo_posted;
4550 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
4551 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
4553 phba->pport->work_port_events |= WORKER_MBOX_TMO;
4554 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
4557 lpfc_worker_wake_up(phba);
4563 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
4564 * @phba: Pointer to HBA context object.
4566 * This function is called from worker thread when a mailbox command times out.
4567 * The caller is not required to hold any locks. This function will reset the
4568 * HBA and recover all the pending commands.
4571 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
4573 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
4574 MAILBOX_t *mb = &pmbox->u.mb;
4575 struct lpfc_sli *psli = &phba->sli;
4576 struct lpfc_sli_ring *pring;
4578 /* Check the pmbox pointer first. There is a race condition
4579 * between the mbox timeout handler getting executed in the
4580 * worklist and the mailbox actually completing. When this
4581 * race condition occurs, the mbox_active will be NULL.
4583 spin_lock_irq(&phba->hbalock);
4584 if (pmbox == NULL) {
4585 lpfc_printf_log(phba, KERN_WARNING,
4587 "0353 Active Mailbox cleared - mailbox timeout "
4589 spin_unlock_irq(&phba->hbalock);
4593 /* Mbox cmd <mbxCommand> timeout */
4594 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4595 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
4597 phba->pport->port_state,
4599 phba->sli.mbox_active);
4600 spin_unlock_irq(&phba->hbalock);
4602 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4603 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4604 * it to fail all oustanding SCSI IO.
4606 spin_lock_irq(&phba->pport->work_port_lock);
4607 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
4608 spin_unlock_irq(&phba->pport->work_port_lock);
4609 spin_lock_irq(&phba->hbalock);
4610 phba->link_state = LPFC_LINK_UNKNOWN;
4611 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4612 spin_unlock_irq(&phba->hbalock);
4614 pring = &psli->ring[psli->fcp_ring];
4615 lpfc_sli_abort_iocb_ring(phba, pring);
4617 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4618 "0345 Resetting board due to mailbox timeout\n");
4620 /* Reset the HBA device */
4621 lpfc_reset_hba(phba);
4625 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
4626 * @phba: Pointer to HBA context object.
4627 * @pmbox: Pointer to mailbox object.
4628 * @flag: Flag indicating how the mailbox need to be processed.
4630 * This function is called by discovery code and HBA management code
4631 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4632 * function gets the hbalock to protect the data structures.
4633 * The mailbox command can be submitted in polling mode, in which case
4634 * this function will wait in a polling loop for the completion of the
4636 * If the mailbox is submitted in no_wait mode (not polling) the
4637 * function will submit the command and returns immediately without waiting
4638 * for the mailbox completion. The no_wait is supported only when HBA
4639 * is in SLI2/SLI3 mode - interrupts are enabled.
4640 * The SLI interface allows only one mailbox pending at a time. If the
4641 * mailbox is issued in polling mode and there is already a mailbox
4642 * pending, then the function will return an error. If the mailbox is issued
4643 * in NO_WAIT mode and there is a mailbox pending already, the function
4644 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4645 * The sli layer owns the mailbox object until the completion of mailbox
4646 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4647 * return codes the caller owns the mailbox command after the return of
4651 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
4655 struct lpfc_sli *psli = &phba->sli;
4656 uint32_t status, evtctr;
4659 unsigned long timeout;
4660 unsigned long drvr_flag = 0;
4661 uint32_t word0, ldata;
4662 void __iomem *to_slim;
4663 int processing_queue = 0;
4665 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4667 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4668 /* processing mbox queue from intr_handler */
4669 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
4670 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4673 processing_queue = 1;
4674 pmbox = lpfc_mbox_get(phba);
4676 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4681 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
4682 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
4684 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4685 lpfc_printf_log(phba, KERN_ERR,
4686 LOG_MBOX | LOG_VPORT,
4687 "1806 Mbox x%x failed. No vport\n",
4688 pmbox->u.mb.mbxCommand);
4690 goto out_not_finished;
4694 /* If the PCI channel is in offline state, do not post mbox. */
4695 if (unlikely(pci_channel_offline(phba->pcidev))) {
4696 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4697 goto out_not_finished;
4700 /* If HBA has a deferred error attention, fail the iocb. */
4701 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
4702 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4703 goto out_not_finished;
4709 status = MBX_SUCCESS;
4711 if (phba->link_state == LPFC_HBA_ERROR) {
4712 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4714 /* Mbox command <mbxCommand> cannot issue */
4715 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4716 "(%d):0311 Mailbox command x%x cannot "
4717 "issue Data: x%x x%x\n",
4718 pmbox->vport ? pmbox->vport->vpi : 0,
4719 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4720 goto out_not_finished;
4723 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
4724 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
4725 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4726 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4727 "(%d):2528 Mailbox command x%x cannot "
4728 "issue Data: x%x x%x\n",
4729 pmbox->vport ? pmbox->vport->vpi : 0,
4730 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4731 goto out_not_finished;
4734 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
4735 /* Polling for a mbox command when another one is already active
4736 * is not allowed in SLI. Also, the driver must have established
4737 * SLI2 mode to queue and process multiple mbox commands.
4740 if (flag & MBX_POLL) {
4741 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4743 /* Mbox command <mbxCommand> cannot issue */
4744 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4745 "(%d):2529 Mailbox command x%x "
4746 "cannot issue Data: x%x x%x\n",
4747 pmbox->vport ? pmbox->vport->vpi : 0,
4748 pmbox->u.mb.mbxCommand,
4749 psli->sli_flag, flag);
4750 goto out_not_finished;
4753 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
4754 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4755 /* Mbox command <mbxCommand> cannot issue */
4756 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4757 "(%d):2530 Mailbox command x%x "
4758 "cannot issue Data: x%x x%x\n",
4759 pmbox->vport ? pmbox->vport->vpi : 0,
4760 pmbox->u.mb.mbxCommand,
4761 psli->sli_flag, flag);
4762 goto out_not_finished;
4765 /* Another mailbox command is still being processed, queue this
4766 * command to be processed later.
4768 lpfc_mbox_put(phba, pmbox);
4770 /* Mbox cmd issue - BUSY */
4771 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4772 "(%d):0308 Mbox cmd issue - BUSY Data: "
4773 "x%x x%x x%x x%x\n",
4774 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
4775 mb->mbxCommand, phba->pport->port_state,
4776 psli->sli_flag, flag);
4778 psli->slistat.mbox_busy++;
4779 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4782 lpfc_debugfs_disc_trc(pmbox->vport,
4783 LPFC_DISC_TRC_MBOX_VPORT,
4784 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4785 (uint32_t)mb->mbxCommand,
4786 mb->un.varWords[0], mb->un.varWords[1]);
4789 lpfc_debugfs_disc_trc(phba->pport,
4791 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4792 (uint32_t)mb->mbxCommand,
4793 mb->un.varWords[0], mb->un.varWords[1]);
4799 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4801 /* If we are not polling, we MUST be in SLI2 mode */
4802 if (flag != MBX_POLL) {
4803 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
4804 (mb->mbxCommand != MBX_KILL_BOARD)) {
4805 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4806 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4807 /* Mbox command <mbxCommand> cannot issue */
4808 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4809 "(%d):2531 Mailbox command x%x "
4810 "cannot issue Data: x%x x%x\n",
4811 pmbox->vport ? pmbox->vport->vpi : 0,
4812 pmbox->u.mb.mbxCommand,
4813 psli->sli_flag, flag);
4814 goto out_not_finished;
4816 /* timeout active mbox command */
4817 mod_timer(&psli->mbox_tmo, (jiffies +
4818 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
4821 /* Mailbox cmd <cmd> issue */
4822 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4823 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
4825 pmbox->vport ? pmbox->vport->vpi : 0,
4826 mb->mbxCommand, phba->pport->port_state,
4827 psli->sli_flag, flag);
4829 if (mb->mbxCommand != MBX_HEARTBEAT) {
4831 lpfc_debugfs_disc_trc(pmbox->vport,
4832 LPFC_DISC_TRC_MBOX_VPORT,
4833 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4834 (uint32_t)mb->mbxCommand,
4835 mb->un.varWords[0], mb->un.varWords[1]);
4838 lpfc_debugfs_disc_trc(phba->pport,
4840 "MBOX Send: cmd:x%x mb:x%x x%x",
4841 (uint32_t)mb->mbxCommand,
4842 mb->un.varWords[0], mb->un.varWords[1]);
4846 psli->slistat.mbox_cmd++;
4847 evtctr = psli->slistat.mbox_event;
4849 /* next set own bit for the adapter and copy over command word */
4850 mb->mbxOwner = OWN_CHIP;
4852 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4853 /* First copy command data to host SLIM area */
4854 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4856 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4857 /* copy command data into host mbox for cmpl */
4858 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4861 /* First copy mbox command data to HBA SLIM, skip past first
4863 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4864 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
4865 MAILBOX_CMD_SIZE - sizeof (uint32_t));
4867 /* Next copy over first word, with mbxOwner set */
4868 ldata = *((uint32_t *)mb);
4869 to_slim = phba->MBslimaddr;
4870 writel(ldata, to_slim);
4871 readl(to_slim); /* flush */
4873 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4874 /* switch over to host mailbox */
4875 psli->sli_flag |= LPFC_SLI_ACTIVE;
4883 /* Set up reference to mailbox command */
4884 psli->mbox_active = pmbox;
4885 /* Interrupt board to do it */
4886 writel(CA_MBATT, phba->CAregaddr);
4887 readl(phba->CAregaddr); /* flush */
4888 /* Don't wait for it to finish, just return */
4892 /* Set up null reference to mailbox command */
4893 psli->mbox_active = NULL;
4894 /* Interrupt board to do it */
4895 writel(CA_MBATT, phba->CAregaddr);
4896 readl(phba->CAregaddr); /* flush */
4898 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4899 /* First read mbox status word */
4900 word0 = *((uint32_t *)phba->mbox);
4901 word0 = le32_to_cpu(word0);
4903 /* First read mbox status word */
4904 word0 = readl(phba->MBslimaddr);
4907 /* Read the HBA Host Attention Register */
4908 ha_copy = readl(phba->HAregaddr);
4909 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
4913 /* Wait for command to complete */
4914 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
4915 (!(ha_copy & HA_MBATT) &&
4916 (phba->link_state > LPFC_WARM_START))) {
4917 if (time_after(jiffies, timeout)) {
4918 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4919 spin_unlock_irqrestore(&phba->hbalock,
4921 goto out_not_finished;
4924 /* Check if we took a mbox interrupt while we were
4926 if (((word0 & OWN_CHIP) != OWN_CHIP)
4927 && (evtctr != psli->slistat.mbox_event))
4931 spin_unlock_irqrestore(&phba->hbalock,
4934 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4937 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4938 /* First copy command data */
4939 word0 = *((uint32_t *)phba->mbox);
4940 word0 = le32_to_cpu(word0);
4941 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4944 /* Check real SLIM for any errors */
4945 slimword0 = readl(phba->MBslimaddr);
4946 slimmb = (MAILBOX_t *) & slimword0;
4947 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
4948 && slimmb->mbxStatus) {
4955 /* First copy command data */
4956 word0 = readl(phba->MBslimaddr);
4958 /* Read the HBA Host Attention Register */
4959 ha_copy = readl(phba->HAregaddr);
4962 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4963 /* copy results back to user */
4964 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
4966 /* First copy command data */
4967 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
4969 if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
4971 lpfc_memcpy_from_slim((void *)pmbox->context2,
4972 phba->MBslimaddr + DMP_RSP_OFFSET,
4973 mb->un.varDmp.word_cnt);
4977 writel(HA_MBATT, phba->HAregaddr);
4978 readl(phba->HAregaddr); /* flush */
4980 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4981 status = mb->mbxStatus;
4984 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4988 if (processing_queue) {
4989 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
4990 lpfc_mbox_cmpl_put(phba, pmbox);
4992 return MBX_NOT_FINISHED;
4996 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
4997 * @phba: Pointer to HBA context object.
4999 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5000 * the driver internal pending mailbox queue. It will then try to wait out the
5001 * possible outstanding mailbox command before return.
5004 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5005 * the outstanding mailbox command timed out.
5008 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
5010 struct lpfc_sli *psli = &phba->sli;
5011 uint8_t actcmd = MBX_HEARTBEAT;
5013 unsigned long timeout;
5015 /* Mark the asynchronous mailbox command posting as blocked */
5016 spin_lock_irq(&phba->hbalock);
5017 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
5018 if (phba->sli.mbox_active)
5019 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
5020 spin_unlock_irq(&phba->hbalock);
5021 /* Determine how long we might wait for the active mailbox
5022 * command to be gracefully completed by firmware.
5024 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
5026 /* Wait for the outstnading mailbox command to complete */
5027 while (phba->sli.mbox_active) {
5028 /* Check active mailbox complete status every 2ms */
5030 if (time_after(jiffies, timeout)) {
5031 /* Timeout, marked the outstanding cmd not complete */
5037 /* Can not cleanly block async mailbox command, fails it */
5039 spin_lock_irq(&phba->hbalock);
5040 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5041 spin_unlock_irq(&phba->hbalock);
5047 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5048 * @phba: Pointer to HBA context object.
5050 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5051 * commands from the driver internal pending mailbox queue. It makes sure
5052 * that there is no outstanding mailbox command before resuming posting
5053 * asynchronous mailbox commands. If, for any reason, there is outstanding
5054 * mailbox command, it will try to wait it out before resuming asynchronous
5055 * mailbox command posting.
5058 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5060 struct lpfc_sli *psli = &phba->sli;
5062 spin_lock_irq(&phba->hbalock);
5063 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5064 /* Asynchronous mailbox posting is not blocked, do nothing */
5065 spin_unlock_irq(&phba->hbalock);
5069 /* Outstanding synchronous mailbox command is guaranteed to be done,
5070 * successful or timeout, after timing-out the outstanding mailbox
5071 * command shall always be removed, so just unblock posting async
5072 * mailbox command and resume
5074 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5075 spin_unlock_irq(&phba->hbalock);
5077 /* wake up worker thread to post asynchronlous mailbox command */
5078 lpfc_worker_wake_up(phba);
5082 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5083 * @phba: Pointer to HBA context object.
5084 * @mboxq: Pointer to mailbox object.
5086 * The function posts a mailbox to the port. The mailbox is expected
5087 * to be comletely filled in and ready for the port to operate on it.
5088 * This routine executes a synchronous completion operation on the
5089 * mailbox by polling for its completion.
5091 * The caller must not be holding any locks when calling this routine.
5094 * MBX_SUCCESS - mailbox posted successfully
5095 * Any of the MBX error values.
5098 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5100 int rc = MBX_SUCCESS;
5101 unsigned long iflag;
5103 uint32_t mcqe_status;
5105 unsigned long timeout;
5106 struct lpfc_sli *psli = &phba->sli;
5107 struct lpfc_mqe *mb = &mboxq->u.mqe;
5108 struct lpfc_bmbx_create *mbox_rgn;
5109 struct dma_address *dma_address;
5110 struct lpfc_register bmbx_reg;
5113 * Only one mailbox can be active to the bootstrap mailbox region
5114 * at a time and there is no queueing provided.
5116 spin_lock_irqsave(&phba->hbalock, iflag);
5117 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5118 spin_unlock_irqrestore(&phba->hbalock, iflag);
5119 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5120 "(%d):2532 Mailbox command x%x (x%x) "
5121 "cannot issue Data: x%x x%x\n",
5122 mboxq->vport ? mboxq->vport->vpi : 0,
5123 mboxq->u.mb.mbxCommand,
5124 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5125 psli->sli_flag, MBX_POLL);
5126 return MBXERR_ERROR;
5128 /* The server grabs the token and owns it until release */
5129 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5130 phba->sli.mbox_active = mboxq;
5131 spin_unlock_irqrestore(&phba->hbalock, iflag);
5134 * Initialize the bootstrap memory region to avoid stale data areas
5135 * in the mailbox post. Then copy the caller's mailbox contents to
5136 * the bmbx mailbox region.
5138 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5139 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5140 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5141 sizeof(struct lpfc_mqe));
5143 /* Post the high mailbox dma address to the port and wait for ready. */
5144 dma_address = &phba->sli4_hba.bmbx.dma_address;
5145 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5147 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5150 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5151 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5155 if (time_after(jiffies, timeout)) {
5159 } while (!db_ready);
5161 /* Post the low mailbox dma address to the port. */
5162 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5163 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5166 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5167 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5171 if (time_after(jiffies, timeout)) {
5175 } while (!db_ready);
5178 * Read the CQ to ensure the mailbox has completed.
5179 * If so, update the mailbox status so that the upper layers
5180 * can complete the request normally.
5182 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5183 sizeof(struct lpfc_mqe));
5184 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5185 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5186 sizeof(struct lpfc_mcqe));
5187 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5189 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5190 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5191 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5195 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5196 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5197 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5198 " x%x x%x CQ: x%x x%x x%x x%x\n",
5199 mboxq->vport ? mboxq->vport->vpi : 0,
5200 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5201 bf_get(lpfc_mqe_status, mb),
5202 mb->un.mb_words[0], mb->un.mb_words[1],
5203 mb->un.mb_words[2], mb->un.mb_words[3],
5204 mb->un.mb_words[4], mb->un.mb_words[5],
5205 mb->un.mb_words[6], mb->un.mb_words[7],
5206 mb->un.mb_words[8], mb->un.mb_words[9],
5207 mb->un.mb_words[10], mb->un.mb_words[11],
5208 mb->un.mb_words[12], mboxq->mcqe.word0,
5209 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5210 mboxq->mcqe.trailer);
5212 /* We are holding the token, no needed for lock when release */
5213 spin_lock_irqsave(&phba->hbalock, iflag);
5214 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5215 phba->sli.mbox_active = NULL;
5216 spin_unlock_irqrestore(&phba->hbalock, iflag);
5221 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5222 * @phba: Pointer to HBA context object.
5223 * @pmbox: Pointer to mailbox object.
5224 * @flag: Flag indicating how the mailbox need to be processed.
5226 * This function is called by discovery code and HBA management code to submit
5227 * a mailbox command to firmware with SLI-4 interface spec.
5229 * Return codes the caller owns the mailbox command after the return of the
5233 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5236 struct lpfc_sli *psli = &phba->sli;
5237 unsigned long iflags;
5240 rc = lpfc_mbox_dev_check(phba);
5242 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5243 "(%d):2544 Mailbox command x%x (x%x) "
5244 "cannot issue Data: x%x x%x\n",
5245 mboxq->vport ? mboxq->vport->vpi : 0,
5246 mboxq->u.mb.mbxCommand,
5247 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5248 psli->sli_flag, flag);
5249 goto out_not_finished;
5252 /* Detect polling mode and jump to a handler */
5253 if (!phba->sli4_hba.intr_enable) {
5254 if (flag == MBX_POLL)
5255 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5258 if (rc != MBX_SUCCESS)
5259 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5260 "(%d):2541 Mailbox command x%x "
5261 "(x%x) cannot issue Data: x%x x%x\n",
5262 mboxq->vport ? mboxq->vport->vpi : 0,
5263 mboxq->u.mb.mbxCommand,
5264 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5265 psli->sli_flag, flag);
5267 } else if (flag == MBX_POLL) {
5268 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5269 "(%d):2542 Try to issue mailbox command "
5270 "x%x (x%x) synchronously ahead of async"
5271 "mailbox command queue: x%x x%x\n",
5272 mboxq->vport ? mboxq->vport->vpi : 0,
5273 mboxq->u.mb.mbxCommand,
5274 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5275 psli->sli_flag, flag);
5276 /* Try to block the asynchronous mailbox posting */
5277 rc = lpfc_sli4_async_mbox_block(phba);
5279 /* Successfully blocked, now issue sync mbox cmd */
5280 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5281 if (rc != MBX_SUCCESS)
5282 lpfc_printf_log(phba, KERN_ERR,
5284 "(%d):2597 Mailbox command "
5285 "x%x (x%x) cannot issue "
5288 mboxq->vport->vpi : 0,
5289 mboxq->u.mb.mbxCommand,
5290 lpfc_sli4_mbox_opcode_get(phba,
5292 psli->sli_flag, flag);
5293 /* Unblock the async mailbox posting afterward */
5294 lpfc_sli4_async_mbox_unblock(phba);
5299 /* Now, interrupt mode asynchrous mailbox command */
5300 rc = lpfc_mbox_cmd_check(phba, mboxq);
5302 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5303 "(%d):2543 Mailbox command x%x (x%x) "
5304 "cannot issue Data: x%x x%x\n",
5305 mboxq->vport ? mboxq->vport->vpi : 0,
5306 mboxq->u.mb.mbxCommand,
5307 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5308 psli->sli_flag, flag);
5309 goto out_not_finished;
5312 /* Put the mailbox command to the driver internal FIFO */
5313 psli->slistat.mbox_busy++;
5314 spin_lock_irqsave(&phba->hbalock, iflags);
5315 lpfc_mbox_put(phba, mboxq);
5316 spin_unlock_irqrestore(&phba->hbalock, iflags);
5317 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5318 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5319 "x%x (x%x) x%x x%x x%x\n",
5320 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5321 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5322 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5323 phba->pport->port_state,
5324 psli->sli_flag, MBX_NOWAIT);
5325 /* Wake up worker thread to transport mailbox command from head */
5326 lpfc_worker_wake_up(phba);
5331 return MBX_NOT_FINISHED;
5335 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5336 * @phba: Pointer to HBA context object.
5338 * This function is called by worker thread to send a mailbox command to
5339 * SLI4 HBA firmware.
5343 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5345 struct lpfc_sli *psli = &phba->sli;
5346 LPFC_MBOXQ_t *mboxq;
5347 int rc = MBX_SUCCESS;
5348 unsigned long iflags;
5349 struct lpfc_mqe *mqe;
5352 /* Check interrupt mode before post async mailbox command */
5353 if (unlikely(!phba->sli4_hba.intr_enable))
5354 return MBX_NOT_FINISHED;
5356 /* Check for mailbox command service token */
5357 spin_lock_irqsave(&phba->hbalock, iflags);
5358 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5359 spin_unlock_irqrestore(&phba->hbalock, iflags);
5360 return MBX_NOT_FINISHED;
5362 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5363 spin_unlock_irqrestore(&phba->hbalock, iflags);
5364 return MBX_NOT_FINISHED;
5366 if (unlikely(phba->sli.mbox_active)) {
5367 spin_unlock_irqrestore(&phba->hbalock, iflags);
5368 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5369 "0384 There is pending active mailbox cmd\n");
5370 return MBX_NOT_FINISHED;
5372 /* Take the mailbox command service token */
5373 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5375 /* Get the next mailbox command from head of queue */
5376 mboxq = lpfc_mbox_get(phba);
5378 /* If no more mailbox command waiting for post, we're done */
5380 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5381 spin_unlock_irqrestore(&phba->hbalock, iflags);
5384 phba->sli.mbox_active = mboxq;
5385 spin_unlock_irqrestore(&phba->hbalock, iflags);
5387 /* Check device readiness for posting mailbox command */
5388 rc = lpfc_mbox_dev_check(phba);
5390 /* Driver clean routine will clean up pending mailbox */
5391 goto out_not_finished;
5393 /* Prepare the mbox command to be posted */
5394 mqe = &mboxq->u.mqe;
5395 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5397 /* Start timer for the mbox_tmo and log some mailbox post messages */
5398 mod_timer(&psli->mbox_tmo, (jiffies +
5399 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5401 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5402 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5404 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5405 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5406 phba->pport->port_state, psli->sli_flag);
5408 if (mbx_cmnd != MBX_HEARTBEAT) {
5410 lpfc_debugfs_disc_trc(mboxq->vport,
5411 LPFC_DISC_TRC_MBOX_VPORT,
5412 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5413 mbx_cmnd, mqe->un.mb_words[0],
5414 mqe->un.mb_words[1]);
5416 lpfc_debugfs_disc_trc(phba->pport,
5418 "MBOX Send: cmd:x%x mb:x%x x%x",
5419 mbx_cmnd, mqe->un.mb_words[0],
5420 mqe->un.mb_words[1]);
5423 psli->slistat.mbox_cmd++;
5425 /* Post the mailbox command to the port */
5426 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5427 if (rc != MBX_SUCCESS) {
5428 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5429 "(%d):2533 Mailbox command x%x (x%x) "
5430 "cannot issue Data: x%x x%x\n",
5431 mboxq->vport ? mboxq->vport->vpi : 0,
5432 mboxq->u.mb.mbxCommand,
5433 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5434 psli->sli_flag, MBX_NOWAIT);
5435 goto out_not_finished;
5441 spin_lock_irqsave(&phba->hbalock, iflags);
5442 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5443 __lpfc_mbox_cmpl_put(phba, mboxq);
5444 /* Release the token */
5445 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5446 phba->sli.mbox_active = NULL;
5447 spin_unlock_irqrestore(&phba->hbalock, iflags);
5449 return MBX_NOT_FINISHED;
5453 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5454 * @phba: Pointer to HBA context object.
5455 * @pmbox: Pointer to mailbox object.
5456 * @flag: Flag indicating how the mailbox need to be processed.
5458 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5459 * the API jump table function pointer from the lpfc_hba struct.
5461 * Return codes the caller owns the mailbox command after the return of the
5465 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5467 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5471 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5472 * @phba: The hba struct for which this call is being executed.
5473 * @dev_grp: The HBA PCI-Device group number.
5475 * This routine sets up the mbox interface API function jump table in @phba
5477 * Returns: 0 - success, -ENODEV - failure.
5480 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5484 case LPFC_PCI_DEV_LP:
5485 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
5486 phba->lpfc_sli_handle_slow_ring_event =
5487 lpfc_sli_handle_slow_ring_event_s3;
5488 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
5489 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
5490 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
5492 case LPFC_PCI_DEV_OC:
5493 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
5494 phba->lpfc_sli_handle_slow_ring_event =
5495 lpfc_sli_handle_slow_ring_event_s4;
5496 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
5497 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
5498 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
5501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5502 "1420 Invalid HBA PCI-device group: 0x%x\n",
5511 * __lpfc_sli_ringtx_put - Add an iocb to the txq
5512 * @phba: Pointer to HBA context object.
5513 * @pring: Pointer to driver SLI ring object.
5514 * @piocb: Pointer to address of newly added command iocb.
5516 * This function is called with hbalock held to add a command
5517 * iocb to the txq when SLI layer cannot submit the command iocb
5521 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5522 struct lpfc_iocbq *piocb)
5524 /* Insert the caller's iocb in the txq tail for later processing. */
5525 list_add_tail(&piocb->list, &pring->txq);
5530 * lpfc_sli_next_iocb - Get the next iocb in the txq
5531 * @phba: Pointer to HBA context object.
5532 * @pring: Pointer to driver SLI ring object.
5533 * @piocb: Pointer to address of newly added command iocb.
5535 * This function is called with hbalock held before a new
5536 * iocb is submitted to the firmware. This function checks
5537 * txq to flush the iocbs in txq to Firmware before
5538 * submitting new iocbs to the Firmware.
5539 * If there are iocbs in the txq which need to be submitted
5540 * to firmware, lpfc_sli_next_iocb returns the first element
5541 * of the txq after dequeuing it from txq.
5542 * If there is no iocb in the txq then the function will return
5543 * *piocb and *piocb is set to NULL. Caller needs to check
5544 * *piocb to find if there are more commands in the txq.
5546 static struct lpfc_iocbq *
5547 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5548 struct lpfc_iocbq **piocb)
5550 struct lpfc_iocbq * nextiocb;
5552 nextiocb = lpfc_sli_ringtx_get(phba, pring);
5562 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
5563 * @phba: Pointer to HBA context object.
5564 * @ring_number: SLI ring number to issue iocb on.
5565 * @piocb: Pointer to command iocb.
5566 * @flag: Flag indicating if this command can be put into txq.
5568 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5569 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5570 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5571 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5572 * this function allows only iocbs for posting buffers. This function finds
5573 * next available slot in the command ring and posts the command to the
5574 * available slot and writes the port attention register to request HBA start
5575 * processing new iocb. If there is no slot available in the ring and
5576 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5577 * the function returns IOCB_BUSY.
5579 * This function is called with hbalock held. The function will return success
5580 * after it successfully submit the iocb to firmware or after adding to the
5584 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
5585 struct lpfc_iocbq *piocb, uint32_t flag)
5587 struct lpfc_iocbq *nextiocb;
5589 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
5591 if (piocb->iocb_cmpl && (!piocb->vport) &&
5592 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
5593 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
5594 lpfc_printf_log(phba, KERN_ERR,
5595 LOG_SLI | LOG_VPORT,
5596 "1807 IOCB x%x failed. No vport\n",
5597 piocb->iocb.ulpCommand);
5603 /* If the PCI channel is in offline state, do not post iocbs. */
5604 if (unlikely(pci_channel_offline(phba->pcidev)))
5607 /* If HBA has a deferred error attention, fail the iocb. */
5608 if (unlikely(phba->hba_flag & DEFER_ERATT))
5612 * We should never get an IOCB if we are in a < LINK_DOWN state
5614 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
5618 * Check to see if we are blocking IOCB processing because of a
5619 * outstanding event.
5621 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
5624 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
5626 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
5627 * can be issued if the link is not up.
5629 switch (piocb->iocb.ulpCommand) {
5630 case CMD_GEN_REQUEST64_CR:
5631 case CMD_GEN_REQUEST64_CX:
5632 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
5633 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
5634 FC_RCTL_DD_UNSOL_CMD) ||
5635 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
5636 MENLO_TRANSPORT_TYPE))
5640 case CMD_QUE_RING_BUF_CN:
5641 case CMD_QUE_RING_BUF64_CN:
5643 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5644 * completion, iocb_cmpl MUST be 0.
5646 if (piocb->iocb_cmpl)
5647 piocb->iocb_cmpl = NULL;
5649 case CMD_CREATE_XRI_CR:
5650 case CMD_CLOSE_XRI_CN:
5651 case CMD_CLOSE_XRI_CX:
5658 * For FCP commands, we must be in a state where we can process link
5661 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
5662 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
5666 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
5667 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
5668 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
5671 lpfc_sli_update_ring(phba, pring);
5673 lpfc_sli_update_full_ring(phba, pring);
5676 return IOCB_SUCCESS;
5681 pring->stats.iocb_cmd_delay++;
5685 if (!(flag & SLI_IOCB_RET_IOCB)) {
5686 __lpfc_sli_ringtx_put(phba, pring, piocb);
5687 return IOCB_SUCCESS;
5694 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5695 * @phba: Pointer to HBA context object.
5696 * @piocb: Pointer to command iocb.
5697 * @sglq: Pointer to the scatter gather queue object.
5699 * This routine converts the bpl or bde that is in the IOCB
5700 * to a sgl list for the sli4 hardware. The physical address
5701 * of the bpl/bde is converted back to a virtual address.
5702 * If the IOCB contains a BPL then the list of BDE's is
5703 * converted to sli4_sge's. If the IOCB contains a single
5704 * BDE then it is converted to a single sli_sge.
5705 * The IOCB is still in cpu endianess so the contents of
5706 * the bpl can be used without byte swapping.
5708 * Returns valid XRI = Success, NO_XRI = Failure.
5711 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
5712 struct lpfc_sglq *sglq)
5714 uint16_t xritag = NO_XRI;
5715 struct ulp_bde64 *bpl = NULL;
5716 struct ulp_bde64 bde;
5717 struct sli4_sge *sgl = NULL;
5722 if (!piocbq || !sglq)
5725 sgl = (struct sli4_sge *)sglq->sgl;
5726 icmd = &piocbq->iocb;
5727 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5728 numBdes = icmd->un.genreq64.bdl.bdeSize /
5729 sizeof(struct ulp_bde64);
5730 /* The addrHigh and addrLow fields within the IOCB
5731 * have not been byteswapped yet so there is no
5732 * need to swap them back.
5734 bpl = (struct ulp_bde64 *)
5735 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
5740 for (i = 0; i < numBdes; i++) {
5741 /* Should already be byte swapped. */
5742 sgl->addr_hi = bpl->addrHigh;
5743 sgl->addr_lo = bpl->addrLow;
5745 if ((i+1) == numBdes)
5746 bf_set(lpfc_sli4_sge_last, sgl, 1);
5748 bf_set(lpfc_sli4_sge_last, sgl, 0);
5749 sgl->word2 = cpu_to_le32(sgl->word2);
5750 /* swap the size field back to the cpu so we
5751 * can assign it to the sgl.
5753 bde.tus.w = le32_to_cpu(bpl->tus.w);
5754 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
5758 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
5759 /* The addrHigh and addrLow fields of the BDE have not
5760 * been byteswapped yet so they need to be swapped
5761 * before putting them in the sgl.
5764 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
5766 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
5767 bf_set(lpfc_sli4_sge_last, sgl, 1);
5768 sgl->word2 = cpu_to_le32(sgl->word2);
5770 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
5772 return sglq->sli4_xritag;
5776 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5777 * @phba: Pointer to HBA context object.
5779 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
5780 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5783 * Return: index into SLI4 fast-path FCP queue index.
5786 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
5789 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
5792 return phba->fcp_qidx;
5796 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5797 * @phba: Pointer to HBA context object.
5798 * @piocb: Pointer to command iocb.
5799 * @wqe: Pointer to the work queue entry.
5801 * This routine converts the iocb command to its Work Queue Entry
5802 * equivalent. The wqe pointer should not have any fields set when
5803 * this routine is called because it will memcpy over them.
5804 * This routine does not set the CQ_ID or the WQEC bits in the
5807 * Returns: 0 = Success, IOCB_ERROR = Failure.
5810 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
5811 union lpfc_wqe *wqe)
5813 uint32_t xmit_len = 0, total_len = 0;
5817 uint8_t command_type = ELS_COMMAND_NON_FIP;
5820 struct ulp_bde64 *bpl = NULL;
5821 uint32_t els_id = ELS_ID_DEFAULT;
5823 struct ulp_bde64 bde;
5825 fip = phba->hba_flag & HBA_FIP_SUPPORT;
5826 /* The fcp commands will set command type */
5827 if (iocbq->iocb_flag & LPFC_IO_FCP)
5828 command_type = FCP_COMMAND;
5829 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
5830 command_type = ELS_COMMAND_FIP;
5832 command_type = ELS_COMMAND_NON_FIP;
5834 /* Some of the fields are in the right position already */
5835 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
5836 abort_tag = (uint32_t) iocbq->iotag;
5837 xritag = iocbq->sli4_xritag;
5838 wqe->words[7] = 0; /* The ct field has moved so reset */
5839 /* words0-2 bpl convert bde */
5840 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5841 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
5842 sizeof(struct ulp_bde64);
5843 bpl = (struct ulp_bde64 *)
5844 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
5848 /* Should already be byte swapped. */
5849 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
5850 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
5851 /* swap the size field back to the cpu so we
5852 * can assign it to the sgl.
5854 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
5855 xmit_len = wqe->generic.bde.tus.f.bdeSize;
5857 for (i = 0; i < numBdes; i++) {
5858 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
5859 total_len += bde.tus.f.bdeSize;
5862 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
5864 iocbq->iocb.ulpIoTag = iocbq->iotag;
5865 cmnd = iocbq->iocb.ulpCommand;
5867 switch (iocbq->iocb.ulpCommand) {
5868 case CMD_ELS_REQUEST64_CR:
5869 if (!iocbq->iocb.ulpLe) {
5870 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5871 "2007 Only Limited Edition cmd Format"
5872 " supported 0x%x\n",
5873 iocbq->iocb.ulpCommand);
5876 wqe->els_req.payload_len = xmit_len;
5877 /* Els_reguest64 has a TMO */
5878 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
5879 iocbq->iocb.ulpTimeout);
5880 /* Need a VF for word 4 set the vf bit*/
5881 bf_set(els_req64_vf, &wqe->els_req, 0);
5882 /* And a VFID for word 12 */
5883 bf_set(els_req64_vfid, &wqe->els_req, 0);
5885 * Set ct field to 3, indicates that the context_tag field
5886 * contains the FCFI and remote N_Port_ID is
5890 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5891 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5892 iocbq->iocb.ulpContext);
5894 bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
5895 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5896 /* CCP CCPE PV PRI in word10 were set in the memcpy */
5898 if (command_type == ELS_COMMAND_FIP) {
5899 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
5900 >> LPFC_FIP_ELS_ID_SHIFT);
5902 bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id);
5905 case CMD_XMIT_SEQUENCE64_CX:
5906 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5907 iocbq->iocb.un.ulpWord[3]);
5908 wqe->generic.word3 = 0;
5909 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
5910 /* The entire sequence is transmitted for this IOCB */
5911 xmit_len = total_len;
5912 cmnd = CMD_XMIT_SEQUENCE64_CR;
5913 case CMD_XMIT_SEQUENCE64_CR:
5914 /* word3 iocb=io_tag32 wqe=payload_offset */
5915 /* payload offset used for multilpe outstanding
5916 * sequences on the same exchange
5919 /* word4 relative_offset memcpy */
5920 /* word5 r_ctl/df_ctl memcpy */
5921 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5922 wqe->xmit_sequence.xmit_len = xmit_len;
5923 command_type = OTHER_COMMAND;
5925 case CMD_XMIT_BCAST64_CN:
5926 /* word3 iocb=iotag32 wqe=payload_len */
5927 wqe->words[3] = 0; /* no definition for this in wqe */
5928 /* word4 iocb=rsvd wqe=rsvd */
5929 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
5930 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
5931 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
5932 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
5934 case CMD_FCP_IWRITE64_CR:
5935 command_type = FCP_COMMAND_DATA_OUT;
5936 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
5938 * word3 is payload_len: byte offset to the sgl entry for the
5940 * word4 is total xfer len, same as the IOCB->ulpParameter.
5941 * word5 is initial xfer len 0 = wait for xfer-ready
5944 /* Always wait for xfer-ready before sending data */
5945 wqe->fcp_iwrite.initial_xfer_len = 0;
5946 /* word 4 (xfer length) should have been set on the memcpy */
5948 /* allow write to fall through to read */
5949 case CMD_FCP_IREAD64_CR:
5950 /* FCP_CMD is always the 1st sgl entry */
5951 wqe->fcp_iread.payload_len =
5952 xmit_len + sizeof(struct fcp_rsp);
5954 /* word 4 (xfer length) should have been set on the memcpy */
5956 bf_set(lpfc_wqe_gen_erp, &wqe->generic,
5957 iocbq->iocb.ulpFCP2Rcvy);
5958 bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
5959 /* The XC bit and the XS bit are similar. The driver never
5960 * tracked whether or not the exchange was previouslly open.
5961 * XC = Exchange create, 0 is create. 1 is already open.
5962 * XS = link cmd: 1 do not close the exchange after command.
5963 * XS = 0 close exchange when command completes.
5964 * The only time we would not set the XC bit is when the XS bit
5965 * is set and we are sending our 2nd or greater command on
5968 /* Always open the exchange */
5969 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5971 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5972 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
5974 case CMD_FCP_ICMND64_CR:
5975 /* Always open the exchange */
5976 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5979 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5980 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5982 case CMD_GEN_REQUEST64_CR:
5983 /* word3 command length is described as byte offset to the
5984 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
5989 wqe->gen_req.command_len = xmit_len;
5990 /* Word4 parameter copied in the memcpy */
5991 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
5992 /* word6 context tag copied in memcpy */
5993 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
5994 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5995 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5996 "2015 Invalid CT %x command 0x%x\n",
5997 ct, iocbq->iocb.ulpCommand);
6000 bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
6001 bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
6002 iocbq->iocb.ulpTimeout);
6004 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6005 command_type = OTHER_COMMAND;
6007 case CMD_XMIT_ELS_RSP64_CX:
6008 /* words0-2 BDE memcpy */
6009 /* word3 iocb=iotag32 wqe=rsvd */
6011 /* word4 iocb=did wge=rsvd. */
6013 /* word5 iocb=rsvd wge=did */
6014 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
6015 iocbq->iocb.un.elsreq64.remoteID);
6017 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6018 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6020 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6021 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
6022 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
6023 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6024 iocbq->vport->vpi + phba->vpi_base);
6025 command_type = OTHER_COMMAND;
6027 case CMD_CLOSE_XRI_CN:
6028 case CMD_ABORT_XRI_CN:
6029 case CMD_ABORT_XRI_CX:
6030 /* words 0-2 memcpy should be 0 rserved */
6031 /* port will send abts */
6032 if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6034 * The link is down so the fw does not need to send abts
6037 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
6039 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
6040 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
6042 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6043 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6044 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
6046 * The abort handler will send us CMD_ABORT_XRI_CN or
6047 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6049 bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
6050 cmnd = CMD_ABORT_XRI_CX;
6051 command_type = OTHER_COMMAND;
6054 case CMD_XMIT_BLS_RSP64_CX:
6055 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6056 * we re-construct this WQE here based on information in
6057 * iocbq from scratch.
6059 memset(wqe, 0, sizeof(union lpfc_wqe));
6060 /* OX_ID is invariable to who sent ABTS to CT exchange */
6061 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
6062 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
6063 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
6064 LPFC_ABTS_UNSOL_INT) {
6065 /* ABTS sent by initiator to CT exchange, the
6066 * RX_ID field will be filled with the newly
6067 * allocated responder XRI.
6069 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6070 iocbq->sli4_xritag);
6072 /* ABTS sent by responder to CT exchange, the
6073 * RX_ID field will be filled with the responder
6076 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6077 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
6079 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
6080 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
6081 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
6082 iocbq->iocb.ulpContext);
6083 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6084 command_type = OTHER_COMMAND;
6086 case CMD_XRI_ABORTED_CX:
6087 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
6088 /* words0-2 are all 0's no bde */
6089 /* word3 and word4 are rsvrd */
6092 /* word5 iocb=rsvd wge=did */
6093 /* There is no remote port id in the IOCB? */
6094 /* Let this fall through and fail */
6095 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6096 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6097 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6098 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6100 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6101 "2014 Invalid command 0x%x\n",
6102 iocbq->iocb.ulpCommand);
6107 bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
6108 bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
6109 wqe->generic.abort_tag = abort_tag;
6110 bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
6111 bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
6112 bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
6113 bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
6119 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6120 * @phba: Pointer to HBA context object.
6121 * @ring_number: SLI ring number to issue iocb on.
6122 * @piocb: Pointer to command iocb.
6123 * @flag: Flag indicating if this command can be put into txq.
6125 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6126 * an iocb command to an HBA with SLI-4 interface spec.
6128 * This function is called with hbalock held. The function will return success
6129 * after it successfully submit the iocb to firmware or after adding to the
6133 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6134 struct lpfc_iocbq *piocb, uint32_t flag)
6136 struct lpfc_sglq *sglq;
6139 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
6141 if (piocb->sli4_xritag == NO_XRI) {
6142 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6143 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6146 sglq = __lpfc_sli_get_sglq(phba);
6149 piocb->sli4_xritag = sglq->sli4_xritag;
6151 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6152 sglq = NULL; /* These IO's already have an XRI and
6156 /* This is a continuation of a commandi,(CX) so this
6157 * sglq is on the active list
6159 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6165 xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq);
6166 if (xritag != sglq->sli4_xritag)
6170 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6173 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
6174 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
6176 * For FCP command IOCB, get a new WQ index to distribute
6177 * WQE across the WQsr. On the other hand, for abort IOCB,
6178 * it carries the same WQ index to the original command
6181 if (piocb->iocb_flag & LPFC_IO_FCP)
6182 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
6183 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
6187 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6190 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6196 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6198 * This routine wraps the actual lockless version for issusing IOCB function
6199 * pointer from the lpfc_hba struct.
6202 * IOCB_ERROR - Error
6203 * IOCB_SUCCESS - Success
6207 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6208 struct lpfc_iocbq *piocb, uint32_t flag)
6210 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6214 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6215 * @phba: The hba struct for which this call is being executed.
6216 * @dev_grp: The HBA PCI-Device group number.
6218 * This routine sets up the SLI interface API function jump table in @phba
6220 * Returns: 0 - success, -ENODEV - failure.
6223 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6227 case LPFC_PCI_DEV_LP:
6228 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6229 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6231 case LPFC_PCI_DEV_OC:
6232 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6233 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6237 "1419 Invalid HBA PCI-device group: 0x%x\n",
6242 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6247 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6248 * @phba: Pointer to HBA context object.
6249 * @pring: Pointer to driver SLI ring object.
6250 * @piocb: Pointer to command iocb.
6251 * @flag: Flag indicating if this command can be put into txq.
6253 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6254 * function. This function gets the hbalock and calls
6255 * __lpfc_sli_issue_iocb function and will return the error returned
6256 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6257 * functions which do not hold hbalock.
6260 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6261 struct lpfc_iocbq *piocb, uint32_t flag)
6263 unsigned long iflags;
6266 spin_lock_irqsave(&phba->hbalock, iflags);
6267 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6268 spin_unlock_irqrestore(&phba->hbalock, iflags);
6274 * lpfc_extra_ring_setup - Extra ring setup function
6275 * @phba: Pointer to HBA context object.
6277 * This function is called while driver attaches with the
6278 * HBA to setup the extra ring. The extra ring is used
6279 * only when driver needs to support target mode functionality
6280 * or IP over FC functionalities.
6282 * This function is called with no lock held.
6285 lpfc_extra_ring_setup( struct lpfc_hba *phba)
6287 struct lpfc_sli *psli;
6288 struct lpfc_sli_ring *pring;
6292 /* Adjust cmd/rsp ring iocb entries more evenly */
6294 /* Take some away from the FCP ring */
6295 pring = &psli->ring[psli->fcp_ring];
6296 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6297 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6298 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6299 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6301 /* and give them to the extra ring */
6302 pring = &psli->ring[psli->extra_ring];
6304 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6305 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6306 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6307 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6309 /* Setup default profile for this ring */
6310 pring->iotag_max = 4096;
6311 pring->num_mask = 1;
6312 pring->prt[0].profile = 0; /* Mask 0 */
6313 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6314 pring->prt[0].type = phba->cfg_multi_ring_type;
6315 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6320 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6321 * @phba: Pointer to HBA context object.
6322 * @pring: Pointer to driver SLI ring object.
6323 * @iocbq: Pointer to iocb object.
6325 * This function is called by the slow ring event handler
6326 * function when there is an ASYNC event iocb in the ring.
6327 * This function is called with no lock held.
6328 * Currently this function handles only temperature related
6329 * ASYNC events. The function decodes the temperature sensor
6330 * event message and posts events for the management applications.
6333 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6334 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6339 struct temp_event temp_event_data;
6340 struct Scsi_Host *shost;
6343 icmd = &iocbq->iocb;
6344 evt_code = icmd->un.asyncstat.evt_code;
6345 temp = icmd->ulpContext;
6347 if ((evt_code != ASYNC_TEMP_WARN) &&
6348 (evt_code != ASYNC_TEMP_SAFE)) {
6349 iocb_w = (uint32_t *) icmd;
6350 lpfc_printf_log(phba,
6353 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6355 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6356 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6357 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6358 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6360 icmd->un.asyncstat.evt_code,
6361 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6362 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6363 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6364 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6368 temp_event_data.data = (uint32_t)temp;
6369 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6370 if (evt_code == ASYNC_TEMP_WARN) {
6371 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6372 lpfc_printf_log(phba,
6375 "0347 Adapter is very hot, please take "
6376 "corrective action. temperature : %d Celsius\n",
6379 if (evt_code == ASYNC_TEMP_SAFE) {
6380 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6381 lpfc_printf_log(phba,
6384 "0340 Adapter temperature is OK now. "
6385 "temperature : %d Celsius\n",
6389 /* Send temperature change event to applications */
6390 shost = lpfc_shost_from_vport(phba->pport);
6391 fc_host_post_vendor_event(shost, fc_get_event_number(),
6392 sizeof(temp_event_data), (char *) &temp_event_data,
6399 * lpfc_sli_setup - SLI ring setup function
6400 * @phba: Pointer to HBA context object.
6402 * lpfc_sli_setup sets up rings of the SLI interface with
6403 * number of iocbs per ring and iotags. This function is
6404 * called while driver attach to the HBA and before the
6405 * interrupts are enabled. So there is no need for locking.
6407 * This function always returns 0.
6410 lpfc_sli_setup(struct lpfc_hba *phba)
6412 int i, totiocbsize = 0;
6413 struct lpfc_sli *psli = &phba->sli;
6414 struct lpfc_sli_ring *pring;
6416 psli->num_rings = MAX_CONFIGURED_RINGS;
6418 psli->fcp_ring = LPFC_FCP_RING;
6419 psli->next_ring = LPFC_FCP_NEXT_RING;
6420 psli->extra_ring = LPFC_EXTRA_RING;
6422 psli->iocbq_lookup = NULL;
6423 psli->iocbq_lookup_len = 0;
6424 psli->last_iotag = 0;
6426 for (i = 0; i < psli->num_rings; i++) {
6427 pring = &psli->ring[i];
6429 case LPFC_FCP_RING: /* ring 0 - FCP */
6430 /* numCiocb and numRiocb are used in config_port */
6431 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
6432 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
6433 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6434 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6435 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6436 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6437 pring->sizeCiocb = (phba->sli_rev == 3) ?
6438 SLI3_IOCB_CMD_SIZE :
6440 pring->sizeRiocb = (phba->sli_rev == 3) ?
6441 SLI3_IOCB_RSP_SIZE :
6443 pring->iotag_ctr = 0;
6445 (phba->cfg_hba_queue_depth * 2);
6446 pring->fast_iotag = pring->iotag_max;
6447 pring->num_mask = 0;
6449 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
6450 /* numCiocb and numRiocb are used in config_port */
6451 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
6452 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
6453 pring->sizeCiocb = (phba->sli_rev == 3) ?
6454 SLI3_IOCB_CMD_SIZE :
6456 pring->sizeRiocb = (phba->sli_rev == 3) ?
6457 SLI3_IOCB_RSP_SIZE :
6459 pring->iotag_max = phba->cfg_hba_queue_depth;
6460 pring->num_mask = 0;
6462 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
6463 /* numCiocb and numRiocb are used in config_port */
6464 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
6465 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
6466 pring->sizeCiocb = (phba->sli_rev == 3) ?
6467 SLI3_IOCB_CMD_SIZE :
6469 pring->sizeRiocb = (phba->sli_rev == 3) ?
6470 SLI3_IOCB_RSP_SIZE :
6472 pring->fast_iotag = 0;
6473 pring->iotag_ctr = 0;
6474 pring->iotag_max = 4096;
6475 pring->lpfc_sli_rcv_async_status =
6476 lpfc_sli_async_event_handler;
6477 pring->num_mask = LPFC_MAX_RING_MASK;
6478 pring->prt[0].profile = 0; /* Mask 0 */
6479 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
6480 pring->prt[0].type = FC_TYPE_ELS;
6481 pring->prt[0].lpfc_sli_rcv_unsol_event =
6482 lpfc_els_unsol_event;
6483 pring->prt[1].profile = 0; /* Mask 1 */
6484 pring->prt[1].rctl = FC_RCTL_ELS_REP;
6485 pring->prt[1].type = FC_TYPE_ELS;
6486 pring->prt[1].lpfc_sli_rcv_unsol_event =
6487 lpfc_els_unsol_event;
6488 pring->prt[2].profile = 0; /* Mask 2 */
6489 /* NameServer Inquiry */
6490 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
6492 pring->prt[2].type = FC_TYPE_CT;
6493 pring->prt[2].lpfc_sli_rcv_unsol_event =
6494 lpfc_ct_unsol_event;
6495 pring->prt[3].profile = 0; /* Mask 3 */
6496 /* NameServer response */
6497 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
6499 pring->prt[3].type = FC_TYPE_CT;
6500 pring->prt[3].lpfc_sli_rcv_unsol_event =
6501 lpfc_ct_unsol_event;
6502 /* abort unsolicited sequence */
6503 pring->prt[4].profile = 0; /* Mask 4 */
6504 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
6505 pring->prt[4].type = FC_TYPE_BLS;
6506 pring->prt[4].lpfc_sli_rcv_unsol_event =
6507 lpfc_sli4_ct_abort_unsol_event;
6510 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
6511 (pring->numRiocb * pring->sizeRiocb);
6513 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
6514 /* Too many cmd / rsp ring entries in SLI2 SLIM */
6515 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
6516 "SLI2 SLIM Data: x%x x%lx\n",
6517 phba->brd_no, totiocbsize,
6518 (unsigned long) MAX_SLIM_IOCB_SIZE);
6520 if (phba->cfg_multi_ring_support == 2)
6521 lpfc_extra_ring_setup(phba);
6527 * lpfc_sli_queue_setup - Queue initialization function
6528 * @phba: Pointer to HBA context object.
6530 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6531 * ring. This function also initializes ring indices of each ring.
6532 * This function is called during the initialization of the SLI
6533 * interface of an HBA.
6534 * This function is called with no lock held and always returns
6538 lpfc_sli_queue_setup(struct lpfc_hba *phba)
6540 struct lpfc_sli *psli;
6541 struct lpfc_sli_ring *pring;
6545 spin_lock_irq(&phba->hbalock);
6546 INIT_LIST_HEAD(&psli->mboxq);
6547 INIT_LIST_HEAD(&psli->mboxq_cmpl);
6548 /* Initialize list headers for txq and txcmplq as double linked lists */
6549 for (i = 0; i < psli->num_rings; i++) {
6550 pring = &psli->ring[i];
6552 pring->next_cmdidx = 0;
6553 pring->local_getidx = 0;
6555 INIT_LIST_HEAD(&pring->txq);
6556 INIT_LIST_HEAD(&pring->txcmplq);
6557 INIT_LIST_HEAD(&pring->iocb_continueq);
6558 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
6559 INIT_LIST_HEAD(&pring->postbufq);
6561 spin_unlock_irq(&phba->hbalock);
6566 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6567 * @phba: Pointer to HBA context object.
6569 * This routine flushes the mailbox command subsystem. It will unconditionally
6570 * flush all the mailbox commands in the three possible stages in the mailbox
6571 * command sub-system: pending mailbox command queue; the outstanding mailbox
6572 * command; and completed mailbox command queue. It is caller's responsibility
6573 * to make sure that the driver is in the proper state to flush the mailbox
6574 * command sub-system. Namely, the posting of mailbox commands into the
6575 * pending mailbox command queue from the various clients must be stopped;
6576 * either the HBA is in a state that it will never works on the outstanding
6577 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6578 * mailbox command has been completed.
6581 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
6583 LIST_HEAD(completions);
6584 struct lpfc_sli *psli = &phba->sli;
6586 unsigned long iflag;
6588 /* Flush all the mailbox commands in the mbox system */
6589 spin_lock_irqsave(&phba->hbalock, iflag);
6590 /* The pending mailbox command queue */
6591 list_splice_init(&phba->sli.mboxq, &completions);
6592 /* The outstanding active mailbox command */
6593 if (psli->mbox_active) {
6594 list_add_tail(&psli->mbox_active->list, &completions);
6595 psli->mbox_active = NULL;
6596 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6598 /* The completed mailbox command queue */
6599 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
6600 spin_unlock_irqrestore(&phba->hbalock, iflag);
6602 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6603 while (!list_empty(&completions)) {
6604 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
6605 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
6607 pmb->mbox_cmpl(phba, pmb);
6612 * lpfc_sli_host_down - Vport cleanup function
6613 * @vport: Pointer to virtual port object.
6615 * lpfc_sli_host_down is called to clean up the resources
6616 * associated with a vport before destroying virtual
6617 * port data structures.
6618 * This function does following operations:
6619 * - Free discovery resources associated with this virtual
6621 * - Free iocbs associated with this virtual port in
6623 * - Send abort for all iocb commands associated with this
6626 * This function is called with no lock held and always returns 1.
6629 lpfc_sli_host_down(struct lpfc_vport *vport)
6631 LIST_HEAD(completions);
6632 struct lpfc_hba *phba = vport->phba;
6633 struct lpfc_sli *psli = &phba->sli;
6634 struct lpfc_sli_ring *pring;
6635 struct lpfc_iocbq *iocb, *next_iocb;
6637 unsigned long flags = 0;
6638 uint16_t prev_pring_flag;
6640 lpfc_cleanup_discovery_resources(vport);
6642 spin_lock_irqsave(&phba->hbalock, flags);
6643 for (i = 0; i < psli->num_rings; i++) {
6644 pring = &psli->ring[i];
6645 prev_pring_flag = pring->flag;
6646 /* Only slow rings */
6647 if (pring->ringno == LPFC_ELS_RING) {
6648 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6649 /* Set the lpfc data pending flag */
6650 set_bit(LPFC_DATA_READY, &phba->data_flags);
6653 * Error everything on the txq since these iocbs have not been
6654 * given to the FW yet.
6656 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6657 if (iocb->vport != vport)
6659 list_move_tail(&iocb->list, &completions);
6663 /* Next issue ABTS for everything on the txcmplq */
6664 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
6666 if (iocb->vport != vport)
6668 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
6671 pring->flag = prev_pring_flag;
6674 spin_unlock_irqrestore(&phba->hbalock, flags);
6676 /* Cancel all the IOCBs from the completions list */
6677 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6683 * lpfc_sli_hba_down - Resource cleanup function for the HBA
6684 * @phba: Pointer to HBA context object.
6686 * This function cleans up all iocb, buffers, mailbox commands
6687 * while shutting down the HBA. This function is called with no
6688 * lock held and always returns 1.
6689 * This function does the following to cleanup driver resources:
6690 * - Free discovery resources for each virtual port
6691 * - Cleanup any pending fabric iocbs
6692 * - Iterate through the iocb txq and free each entry
6694 * - Free up any buffer posted to the HBA
6695 * - Free mailbox commands in the mailbox queue.
6698 lpfc_sli_hba_down(struct lpfc_hba *phba)
6700 LIST_HEAD(completions);
6701 struct lpfc_sli *psli = &phba->sli;
6702 struct lpfc_sli_ring *pring;
6703 struct lpfc_dmabuf *buf_ptr;
6704 unsigned long flags = 0;
6707 /* Shutdown the mailbox command sub-system */
6708 lpfc_sli_mbox_sys_shutdown(phba);
6710 lpfc_hba_down_prep(phba);
6712 lpfc_fabric_abort_hba(phba);
6714 spin_lock_irqsave(&phba->hbalock, flags);
6715 for (i = 0; i < psli->num_rings; i++) {
6716 pring = &psli->ring[i];
6717 /* Only slow rings */
6718 if (pring->ringno == LPFC_ELS_RING) {
6719 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6720 /* Set the lpfc data pending flag */
6721 set_bit(LPFC_DATA_READY, &phba->data_flags);
6725 * Error everything on the txq since these iocbs have not been
6726 * given to the FW yet.
6728 list_splice_init(&pring->txq, &completions);
6732 spin_unlock_irqrestore(&phba->hbalock, flags);
6734 /* Cancel all the IOCBs from the completions list */
6735 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6738 spin_lock_irqsave(&phba->hbalock, flags);
6739 list_splice_init(&phba->elsbuf, &completions);
6740 phba->elsbuf_cnt = 0;
6741 phba->elsbuf_prev_cnt = 0;
6742 spin_unlock_irqrestore(&phba->hbalock, flags);
6744 while (!list_empty(&completions)) {
6745 list_remove_head(&completions, buf_ptr,
6746 struct lpfc_dmabuf, list);
6747 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
6751 /* Return any active mbox cmds */
6752 del_timer_sync(&psli->mbox_tmo);
6754 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
6755 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6756 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
6762 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6763 * @phba: Pointer to HBA context object.
6765 * This function cleans up all queues, iocb, buffers, mailbox commands while
6766 * shutting down the SLI4 HBA FCoE function. This function is called with no
6767 * lock held and always returns 1.
6769 * This function does the following to cleanup driver FCoE function resources:
6770 * - Free discovery resources for each virtual port
6771 * - Cleanup any pending fabric iocbs
6772 * - Iterate through the iocb txq and free each entry in the list.
6773 * - Free up any buffer posted to the HBA.
6774 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6775 * - Free mailbox commands in the mailbox queue.
6778 lpfc_sli4_hba_down(struct lpfc_hba *phba)
6780 /* Stop the SLI4 device port */
6781 lpfc_stop_port(phba);
6783 /* Tear down the queues in the HBA */
6784 lpfc_sli4_queue_unset(phba);
6786 /* unregister default FCFI from the HBA */
6787 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
6793 * lpfc_sli_pcimem_bcopy - SLI memory copy function
6794 * @srcp: Source memory pointer.
6795 * @destp: Destination memory pointer.
6796 * @cnt: Number of words required to be copied.
6798 * This function is used for copying data between driver memory
6799 * and the SLI memory. This function also changes the endianness
6800 * of each word if native endianness is different from SLI
6801 * endianness. This function can be called with or without
6805 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
6807 uint32_t *src = srcp;
6808 uint32_t *dest = destp;
6812 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
6814 ldata = le32_to_cpu(ldata);
6823 * lpfc_sli_bemem_bcopy - SLI memory copy function
6824 * @srcp: Source memory pointer.
6825 * @destp: Destination memory pointer.
6826 * @cnt: Number of words required to be copied.
6828 * This function is used for copying data between a data structure
6829 * with big endian representation to local endianness.
6830 * This function can be called with or without lock.
6833 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
6835 uint32_t *src = srcp;
6836 uint32_t *dest = destp;
6840 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
6842 ldata = be32_to_cpu(ldata);
6850 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
6851 * @phba: Pointer to HBA context object.
6852 * @pring: Pointer to driver SLI ring object.
6853 * @mp: Pointer to driver buffer object.
6855 * This function is called with no lock held.
6856 * It always return zero after adding the buffer to the postbufq
6860 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6861 struct lpfc_dmabuf *mp)
6863 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
6865 spin_lock_irq(&phba->hbalock);
6866 list_add_tail(&mp->list, &pring->postbufq);
6867 pring->postbufq_cnt++;
6868 spin_unlock_irq(&phba->hbalock);
6873 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
6874 * @phba: Pointer to HBA context object.
6876 * When HBQ is enabled, buffers are searched based on tags. This function
6877 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
6878 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
6879 * does not conflict with tags of buffer posted for unsolicited events.
6880 * The function returns the allocated tag. The function is called with
6884 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
6886 spin_lock_irq(&phba->hbalock);
6887 phba->buffer_tag_count++;
6889 * Always set the QUE_BUFTAG_BIT to distiguish between
6890 * a tag assigned by HBQ.
6892 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
6893 spin_unlock_irq(&phba->hbalock);
6894 return phba->buffer_tag_count;
6898 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
6899 * @phba: Pointer to HBA context object.
6900 * @pring: Pointer to driver SLI ring object.
6903 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
6904 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
6905 * iocb is posted to the response ring with the tag of the buffer.
6906 * This function searches the pring->postbufq list using the tag
6907 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
6908 * iocb. If the buffer is found then lpfc_dmabuf object of the
6909 * buffer is returned to the caller else NULL is returned.
6910 * This function is called with no lock held.
6912 struct lpfc_dmabuf *
6913 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6916 struct lpfc_dmabuf *mp, *next_mp;
6917 struct list_head *slp = &pring->postbufq;
6919 /* Search postbufq, from the begining, looking for a match on tag */
6920 spin_lock_irq(&phba->hbalock);
6921 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6922 if (mp->buffer_tag == tag) {
6923 list_del_init(&mp->list);
6924 pring->postbufq_cnt--;
6925 spin_unlock_irq(&phba->hbalock);
6930 spin_unlock_irq(&phba->hbalock);
6931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6932 "0402 Cannot find virtual addr for buffer tag on "
6933 "ring %d Data x%lx x%p x%p x%x\n",
6934 pring->ringno, (unsigned long) tag,
6935 slp->next, slp->prev, pring->postbufq_cnt);
6941 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
6942 * @phba: Pointer to HBA context object.
6943 * @pring: Pointer to driver SLI ring object.
6944 * @phys: DMA address of the buffer.
6946 * This function searches the buffer list using the dma_address
6947 * of unsolicited event to find the driver's lpfc_dmabuf object
6948 * corresponding to the dma_address. The function returns the
6949 * lpfc_dmabuf object if a buffer is found else it returns NULL.
6950 * This function is called by the ct and els unsolicited event
6951 * handlers to get the buffer associated with the unsolicited
6954 * This function is called with no lock held.
6956 struct lpfc_dmabuf *
6957 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6960 struct lpfc_dmabuf *mp, *next_mp;
6961 struct list_head *slp = &pring->postbufq;
6963 /* Search postbufq, from the begining, looking for a match on phys */
6964 spin_lock_irq(&phba->hbalock);
6965 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6966 if (mp->phys == phys) {
6967 list_del_init(&mp->list);
6968 pring->postbufq_cnt--;
6969 spin_unlock_irq(&phba->hbalock);
6974 spin_unlock_irq(&phba->hbalock);
6975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6976 "0410 Cannot find virtual addr for mapped buf on "
6977 "ring %d Data x%llx x%p x%p x%x\n",
6978 pring->ringno, (unsigned long long)phys,
6979 slp->next, slp->prev, pring->postbufq_cnt);
6984 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
6985 * @phba: Pointer to HBA context object.
6986 * @cmdiocb: Pointer to driver command iocb object.
6987 * @rspiocb: Pointer to driver response iocb object.
6989 * This function is the completion handler for the abort iocbs for
6990 * ELS commands. This function is called from the ELS ring event
6991 * handler with no lock held. This function frees memory resources
6992 * associated with the abort iocb.
6995 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
6996 struct lpfc_iocbq *rspiocb)
6998 IOCB_t *irsp = &rspiocb->iocb;
6999 uint16_t abort_iotag, abort_context;
7000 struct lpfc_iocbq *abort_iocb;
7001 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7005 if (irsp->ulpStatus) {
7006 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
7007 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
7009 spin_lock_irq(&phba->hbalock);
7010 if (phba->sli_rev < LPFC_SLI_REV4) {
7011 if (abort_iotag != 0 &&
7012 abort_iotag <= phba->sli.last_iotag)
7014 phba->sli.iocbq_lookup[abort_iotag];
7016 /* For sli4 the abort_tag is the XRI,
7017 * so the abort routine puts the iotag of the iocb
7018 * being aborted in the context field of the abort
7021 abort_iocb = phba->sli.iocbq_lookup[abort_context];
7023 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI,
7024 "0327 Cannot abort els iocb %p "
7025 "with tag %x context %x, abort status %x, "
7027 abort_iocb, abort_iotag, abort_context,
7028 irsp->ulpStatus, irsp->un.ulpWord[4]);
7031 * If the iocb is not found in Firmware queue the iocb
7032 * might have completed already. Do not free it again.
7034 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
7035 if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
7036 spin_unlock_irq(&phba->hbalock);
7037 lpfc_sli_release_iocbq(phba, cmdiocb);
7040 /* For SLI4 the ulpContext field for abort IOCB
7041 * holds the iotag of the IOCB being aborted so
7042 * the local abort_context needs to be reset to
7043 * match the aborted IOCBs ulpContext.
7045 if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
7046 abort_context = abort_iocb->iocb.ulpContext;
7049 * make sure we have the right iocbq before taking it
7050 * off the txcmplq and try to call completion routine.
7053 abort_iocb->iocb.ulpContext != abort_context ||
7054 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
7055 spin_unlock_irq(&phba->hbalock);
7056 else if (phba->sli_rev < LPFC_SLI_REV4) {
7058 * leave the SLI4 aborted command on the txcmplq
7059 * list and the command complete WCQE's XB bit
7060 * will tell whether the SGL (XRI) can be released
7061 * immediately or to the aborted SGL list for the
7062 * following abort XRI from the HBA.
7064 list_del_init(&abort_iocb->list);
7065 pring->txcmplq_cnt--;
7066 spin_unlock_irq(&phba->hbalock);
7068 /* Firmware could still be in progress of DMAing
7069 * payload, so don't free data buffer till after
7072 spin_lock_irq(&phba->hbalock);
7073 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
7074 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
7075 spin_unlock_irq(&phba->hbalock);
7077 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
7078 abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
7079 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
7083 lpfc_sli_release_iocbq(phba, cmdiocb);
7088 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7089 * @phba: Pointer to HBA context object.
7090 * @cmdiocb: Pointer to driver command iocb object.
7091 * @rspiocb: Pointer to driver response iocb object.
7093 * The function is called from SLI ring event handler with no
7094 * lock held. This function is the completion handler for ELS commands
7095 * which are aborted. The function frees memory resources used for
7096 * the aborted ELS commands.
7099 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7100 struct lpfc_iocbq *rspiocb)
7102 IOCB_t *irsp = &rspiocb->iocb;
7104 /* ELS cmd tag <ulpIoTag> completes */
7105 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
7106 "0139 Ignoring ELS cmd tag x%x completion Data: "
7108 irsp->ulpIoTag, irsp->ulpStatus,
7109 irsp->un.ulpWord[4], irsp->ulpTimeout);
7110 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7111 lpfc_ct_free_iocb(phba, cmdiocb);
7113 lpfc_els_free_iocb(phba, cmdiocb);
7118 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7119 * @phba: Pointer to HBA context object.
7120 * @pring: Pointer to driver SLI ring object.
7121 * @cmdiocb: Pointer to driver command iocb object.
7123 * This function issues an abort iocb for the provided command
7124 * iocb. This function is called with hbalock held.
7125 * The function returns 0 when it fails due to memory allocation
7126 * failure or when the command iocb is an abort request.
7129 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7130 struct lpfc_iocbq *cmdiocb)
7132 struct lpfc_vport *vport = cmdiocb->vport;
7133 struct lpfc_iocbq *abtsiocbp;
7134 IOCB_t *icmd = NULL;
7135 IOCB_t *iabt = NULL;
7136 int retval = IOCB_ERROR;
7139 * There are certain command types we don't want to abort. And we
7140 * don't want to abort commands that are already in the process of
7143 icmd = &cmdiocb->iocb;
7144 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
7145 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7146 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
7149 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7150 * callback so that nothing happens when it finishes.
7152 if ((vport->load_flag & FC_UNLOADING) &&
7153 (pring->ringno == LPFC_ELS_RING)) {
7154 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7155 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7157 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
7158 goto abort_iotag_exit;
7161 /* issue ABTS for this IOCB based on iotag */
7162 abtsiocbp = __lpfc_sli_get_iocbq(phba);
7163 if (abtsiocbp == NULL)
7166 /* This signals the response to set the correct status
7167 * before calling the completion handler
7169 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7171 iabt = &abtsiocbp->iocb;
7172 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7173 iabt->un.acxri.abortContextTag = icmd->ulpContext;
7174 if (phba->sli_rev == LPFC_SLI_REV4) {
7175 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
7176 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
7179 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
7181 iabt->ulpClass = icmd->ulpClass;
7183 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7184 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
7185 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
7186 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
7188 if (phba->link_state >= LPFC_LINK_UP)
7189 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7191 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7193 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
7195 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7196 "0339 Abort xri x%x, original iotag x%x, "
7197 "abort cmd iotag x%x\n",
7198 iabt->un.acxri.abortContextTag,
7199 iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
7200 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
7203 __lpfc_sli_release_iocbq(phba, abtsiocbp);
7206 * Caller to this routine should check for IOCB_ERROR
7207 * and handle it properly. This routine no longer removes
7208 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7214 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7215 * @iocbq: Pointer to driver iocb object.
7216 * @vport: Pointer to driver virtual port object.
7217 * @tgt_id: SCSI ID of the target.
7218 * @lun_id: LUN ID of the scsi device.
7219 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7221 * This function acts as an iocb filter for functions which abort or count
7222 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7223 * 0 if the filtering criteria is met for the given iocb and will return
7224 * 1 if the filtering criteria is not met.
7225 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7226 * given iocb is for the SCSI device specified by vport, tgt_id and
7228 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7229 * given iocb is for the SCSI target specified by vport and tgt_id
7231 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7232 * given iocb is for the SCSI host associated with the given vport.
7233 * This function is called with no locks held.
7236 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7237 uint16_t tgt_id, uint64_t lun_id,
7238 lpfc_ctx_cmd ctx_cmd)
7240 struct lpfc_scsi_buf *lpfc_cmd;
7243 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7246 if (iocbq->vport != vport)
7249 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
7251 if (lpfc_cmd->pCmd == NULL)
7256 if ((lpfc_cmd->rdata->pnode) &&
7257 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7258 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
7262 if ((lpfc_cmd->rdata->pnode) &&
7263 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
7270 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
7279 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7280 * @vport: Pointer to virtual port.
7281 * @tgt_id: SCSI ID of the target.
7282 * @lun_id: LUN ID of the scsi device.
7283 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7285 * This function returns number of FCP commands pending for the vport.
7286 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7287 * commands pending on the vport associated with SCSI device specified
7288 * by tgt_id and lun_id parameters.
7289 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7290 * commands pending on the vport associated with SCSI target specified
7291 * by tgt_id parameter.
7292 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7293 * commands pending on the vport.
7294 * This function returns the number of iocbs which satisfy the filter.
7295 * This function is called without any lock held.
7298 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7299 lpfc_ctx_cmd ctx_cmd)
7301 struct lpfc_hba *phba = vport->phba;
7302 struct lpfc_iocbq *iocbq;
7305 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7306 iocbq = phba->sli.iocbq_lookup[i];
7308 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7317 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7318 * @phba: Pointer to HBA context object
7319 * @cmdiocb: Pointer to command iocb object.
7320 * @rspiocb: Pointer to response iocb object.
7322 * This function is called when an aborted FCP iocb completes. This
7323 * function is called by the ring event handler with no lock held.
7324 * This function frees the iocb.
7327 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7328 struct lpfc_iocbq *rspiocb)
7330 lpfc_sli_release_iocbq(phba, cmdiocb);
7335 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7336 * @vport: Pointer to virtual port.
7337 * @pring: Pointer to driver SLI ring object.
7338 * @tgt_id: SCSI ID of the target.
7339 * @lun_id: LUN ID of the scsi device.
7340 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7342 * This function sends an abort command for every SCSI command
7343 * associated with the given virtual port pending on the ring
7344 * filtered by lpfc_sli_validate_fcp_iocb function.
7345 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7346 * FCP iocbs associated with lun specified by tgt_id and lun_id
7348 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7349 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7350 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7351 * FCP iocbs associated with virtual port.
7352 * This function returns number of iocbs it failed to abort.
7353 * This function is called with no locks held.
7356 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
7357 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
7359 struct lpfc_hba *phba = vport->phba;
7360 struct lpfc_iocbq *iocbq;
7361 struct lpfc_iocbq *abtsiocb;
7363 int errcnt = 0, ret_val = 0;
7366 for (i = 1; i <= phba->sli.last_iotag; i++) {
7367 iocbq = phba->sli.iocbq_lookup[i];
7369 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
7373 /* issue ABTS for this IOCB based on iotag */
7374 abtsiocb = lpfc_sli_get_iocbq(phba);
7375 if (abtsiocb == NULL) {
7381 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
7382 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
7383 if (phba->sli_rev == LPFC_SLI_REV4)
7384 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
7386 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
7387 abtsiocb->iocb.ulpLe = 1;
7388 abtsiocb->iocb.ulpClass = cmd->ulpClass;
7389 abtsiocb->vport = phba->pport;
7391 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7392 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
7393 if (iocbq->iocb_flag & LPFC_IO_FCP)
7394 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
7396 if (lpfc_is_link_up(phba))
7397 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
7399 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
7401 /* Setup callback routine and issue the command. */
7402 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
7403 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
7405 if (ret_val == IOCB_ERROR) {
7406 lpfc_sli_release_iocbq(phba, abtsiocb);
7416 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
7417 * @phba: Pointer to HBA context object.
7418 * @cmdiocbq: Pointer to command iocb.
7419 * @rspiocbq: Pointer to response iocb.
7421 * This function is the completion handler for iocbs issued using
7422 * lpfc_sli_issue_iocb_wait function. This function is called by the
7423 * ring event handler function without any lock held. This function
7424 * can be called from both worker thread context and interrupt
7425 * context. This function also can be called from other thread which
7426 * cleans up the SLI layer objects.
7427 * This function copy the contents of the response iocb to the
7428 * response iocb memory object provided by the caller of
7429 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7430 * sleeps for the iocb completion.
7433 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
7434 struct lpfc_iocbq *cmdiocbq,
7435 struct lpfc_iocbq *rspiocbq)
7437 wait_queue_head_t *pdone_q;
7438 unsigned long iflags;
7440 spin_lock_irqsave(&phba->hbalock, iflags);
7441 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
7442 if (cmdiocbq->context2 && rspiocbq)
7443 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
7444 &rspiocbq->iocb, sizeof(IOCB_t));
7446 pdone_q = cmdiocbq->context_un.wait_queue;
7449 spin_unlock_irqrestore(&phba->hbalock, iflags);
7454 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7455 * @phba: Pointer to HBA context object..
7456 * @piocbq: Pointer to command iocb.
7457 * @flag: Flag to test.
7459 * This routine grabs the hbalock and then test the iocb_flag to
7460 * see if the passed in flag is set.
7463 * 0 if flag is not set.
7466 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
7467 struct lpfc_iocbq *piocbq, uint32_t flag)
7469 unsigned long iflags;
7472 spin_lock_irqsave(&phba->hbalock, iflags);
7473 ret = piocbq->iocb_flag & flag;
7474 spin_unlock_irqrestore(&phba->hbalock, iflags);
7480 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
7481 * @phba: Pointer to HBA context object..
7482 * @pring: Pointer to sli ring.
7483 * @piocb: Pointer to command iocb.
7484 * @prspiocbq: Pointer to response iocb.
7485 * @timeout: Timeout in number of seconds.
7487 * This function issues the iocb to firmware and waits for the
7488 * iocb to complete. If the iocb command is not
7489 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7490 * Caller should not free the iocb resources if this function
7491 * returns IOCB_TIMEDOUT.
7492 * The function waits for the iocb completion using an
7493 * non-interruptible wait.
7494 * This function will sleep while waiting for iocb completion.
7495 * So, this function should not be called from any context which
7496 * does not allow sleeping. Due to the same reason, this function
7497 * cannot be called with interrupt disabled.
7498 * This function assumes that the iocb completions occur while
7499 * this function sleep. So, this function cannot be called from
7500 * the thread which process iocb completion for this ring.
7501 * This function clears the iocb_flag of the iocb object before
7502 * issuing the iocb and the iocb completion handler sets this
7503 * flag and wakes this thread when the iocb completes.
7504 * The contents of the response iocb will be copied to prspiocbq
7505 * by the completion handler when the command completes.
7506 * This function returns IOCB_SUCCESS when success.
7507 * This function is called with no lock held.
7510 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
7511 uint32_t ring_number,
7512 struct lpfc_iocbq *piocb,
7513 struct lpfc_iocbq *prspiocbq,
7516 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7517 long timeleft, timeout_req = 0;
7518 int retval = IOCB_SUCCESS;
7522 * If the caller has provided a response iocbq buffer, then context2
7523 * is NULL or its an error.
7526 if (piocb->context2)
7528 piocb->context2 = prspiocbq;
7531 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
7532 piocb->context_un.wait_queue = &done_q;
7533 piocb->iocb_flag &= ~LPFC_IO_WAKE;
7535 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7536 creg_val = readl(phba->HCregaddr);
7537 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
7538 writel(creg_val, phba->HCregaddr);
7539 readl(phba->HCregaddr); /* flush */
7542 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0);
7543 if (retval == IOCB_SUCCESS) {
7544 timeout_req = timeout * HZ;
7545 timeleft = wait_event_timeout(done_q,
7546 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
7549 if (piocb->iocb_flag & LPFC_IO_WAKE) {
7550 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7551 "0331 IOCB wake signaled\n");
7552 } else if (timeleft == 0) {
7553 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7554 "0338 IOCB wait timeout error - no "
7555 "wake response Data x%x\n", timeout);
7556 retval = IOCB_TIMEDOUT;
7558 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7559 "0330 IOCB wake NOT set, "
7561 timeout, (timeleft / jiffies));
7562 retval = IOCB_TIMEDOUT;
7565 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7566 "0332 IOCB wait issue failed, Data x%x\n",
7568 retval = IOCB_ERROR;
7571 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7572 creg_val = readl(phba->HCregaddr);
7573 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
7574 writel(creg_val, phba->HCregaddr);
7575 readl(phba->HCregaddr); /* flush */
7579 piocb->context2 = NULL;
7581 piocb->context_un.wait_queue = NULL;
7582 piocb->iocb_cmpl = NULL;
7587 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
7588 * @phba: Pointer to HBA context object.
7589 * @pmboxq: Pointer to driver mailbox object.
7590 * @timeout: Timeout in number of seconds.
7592 * This function issues the mailbox to firmware and waits for the
7593 * mailbox command to complete. If the mailbox command is not
7594 * completed within timeout seconds, it returns MBX_TIMEOUT.
7595 * The function waits for the mailbox completion using an
7596 * interruptible wait. If the thread is woken up due to a
7597 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7598 * should not free the mailbox resources, if this function returns
7600 * This function will sleep while waiting for mailbox completion.
7601 * So, this function should not be called from any context which
7602 * does not allow sleeping. Due to the same reason, this function
7603 * cannot be called with interrupt disabled.
7604 * This function assumes that the mailbox completion occurs while
7605 * this function sleep. So, this function cannot be called from
7606 * the worker thread which processes mailbox completion.
7607 * This function is called in the context of HBA management
7609 * This function returns MBX_SUCCESS when successful.
7610 * This function is called with no lock held.
7613 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
7616 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7620 /* The caller must leave context1 empty. */
7621 if (pmboxq->context1)
7622 return MBX_NOT_FINISHED;
7624 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
7625 /* setup wake call as IOCB callback */
7626 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
7627 /* setup context field to pass wait_queue pointer to wake function */
7628 pmboxq->context1 = &done_q;
7630 /* now issue the command */
7631 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
7633 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
7634 wait_event_interruptible_timeout(done_q,
7635 pmboxq->mbox_flag & LPFC_MBX_WAKE,
7638 spin_lock_irqsave(&phba->hbalock, flag);
7639 pmboxq->context1 = NULL;
7641 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7642 * else do not free the resources.
7644 if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
7645 retval = MBX_SUCCESS;
7647 retval = MBX_TIMEOUT;
7648 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7650 spin_unlock_irqrestore(&phba->hbalock, flag);
7657 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
7658 * @phba: Pointer to HBA context.
7660 * This function is called to shutdown the driver's mailbox sub-system.
7661 * It first marks the mailbox sub-system is in a block state to prevent
7662 * the asynchronous mailbox command from issued off the pending mailbox
7663 * command queue. If the mailbox command sub-system shutdown is due to
7664 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7665 * the mailbox sub-system flush routine to forcefully bring down the
7666 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7667 * as with offline or HBA function reset), this routine will wait for the
7668 * outstanding mailbox command to complete before invoking the mailbox
7669 * sub-system flush routine to gracefully bring down mailbox sub-system.
7672 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
7674 struct lpfc_sli *psli = &phba->sli;
7675 uint8_t actcmd = MBX_HEARTBEAT;
7676 unsigned long timeout;
7678 spin_lock_irq(&phba->hbalock);
7679 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7680 spin_unlock_irq(&phba->hbalock);
7682 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7683 spin_lock_irq(&phba->hbalock);
7684 if (phba->sli.mbox_active)
7685 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
7686 spin_unlock_irq(&phba->hbalock);
7687 /* Determine how long we might wait for the active mailbox
7688 * command to be gracefully completed by firmware.
7690 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
7692 while (phba->sli.mbox_active) {
7693 /* Check active mailbox complete status every 2ms */
7695 if (time_after(jiffies, timeout))
7696 /* Timeout, let the mailbox flush routine to
7697 * forcefully release active mailbox command
7702 lpfc_sli_mbox_sys_flush(phba);
7706 * lpfc_sli_eratt_read - read sli-3 error attention events
7707 * @phba: Pointer to HBA context.
7709 * This function is called to read the SLI3 device error attention registers
7710 * for possible error attention events. The caller must hold the hostlock
7711 * with spin_lock_irq().
7713 * This fucntion returns 1 when there is Error Attention in the Host Attention
7714 * Register and returns 0 otherwise.
7717 lpfc_sli_eratt_read(struct lpfc_hba *phba)
7721 /* Read chip Host Attention (HA) register */
7722 ha_copy = readl(phba->HAregaddr);
7723 if (ha_copy & HA_ERATT) {
7724 /* Read host status register to retrieve error event */
7725 lpfc_sli_read_hs(phba);
7727 /* Check if there is a deferred error condition is active */
7728 if ((HS_FFER1 & phba->work_hs) &&
7729 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7730 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
7731 phba->hba_flag |= DEFER_ERATT;
7732 /* Clear all interrupt enable conditions */
7733 writel(0, phba->HCregaddr);
7734 readl(phba->HCregaddr);
7737 /* Set the driver HA work bitmap */
7738 phba->work_ha |= HA_ERATT;
7739 /* Indicate polling handles this ERATT */
7740 phba->hba_flag |= HBA_ERATT_HANDLED;
7747 * lpfc_sli4_eratt_read - read sli-4 error attention events
7748 * @phba: Pointer to HBA context.
7750 * This function is called to read the SLI4 device error attention registers
7751 * for possible error attention events. The caller must hold the hostlock
7752 * with spin_lock_irq().
7754 * This fucntion returns 1 when there is Error Attention in the Host Attention
7755 * Register and returns 0 otherwise.
7758 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
7760 uint32_t uerr_sta_hi, uerr_sta_lo;
7762 /* For now, use the SLI4 device internal unrecoverable error
7763 * registers for error attention. This can be changed later.
7765 uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
7766 uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
7767 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
7768 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
7769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7770 "1423 HBA Unrecoverable error: "
7771 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7772 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7773 uerr_sta_lo, uerr_sta_hi,
7774 phba->sli4_hba.ue_mask_lo,
7775 phba->sli4_hba.ue_mask_hi);
7776 phba->work_status[0] = uerr_sta_lo;
7777 phba->work_status[1] = uerr_sta_hi;
7778 /* Set the driver HA work bitmap */
7779 phba->work_ha |= HA_ERATT;
7780 /* Indicate polling handles this ERATT */
7781 phba->hba_flag |= HBA_ERATT_HANDLED;
7788 * lpfc_sli_check_eratt - check error attention events
7789 * @phba: Pointer to HBA context.
7791 * This function is called from timer soft interrupt context to check HBA's
7792 * error attention register bit for error attention events.
7794 * This fucntion returns 1 when there is Error Attention in the Host Attention
7795 * Register and returns 0 otherwise.
7798 lpfc_sli_check_eratt(struct lpfc_hba *phba)
7802 /* If somebody is waiting to handle an eratt, don't process it
7803 * here. The brdkill function will do this.
7805 if (phba->link_flag & LS_IGNORE_ERATT)
7808 /* Check if interrupt handler handles this ERATT */
7809 spin_lock_irq(&phba->hbalock);
7810 if (phba->hba_flag & HBA_ERATT_HANDLED) {
7811 /* Interrupt handler has handled ERATT */
7812 spin_unlock_irq(&phba->hbalock);
7817 * If there is deferred error attention, do not check for error
7820 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7821 spin_unlock_irq(&phba->hbalock);
7825 /* If PCI channel is offline, don't process it */
7826 if (unlikely(pci_channel_offline(phba->pcidev))) {
7827 spin_unlock_irq(&phba->hbalock);
7831 switch (phba->sli_rev) {
7834 /* Read chip Host Attention (HA) register */
7835 ha_copy = lpfc_sli_eratt_read(phba);
7838 /* Read devcie Uncoverable Error (UERR) registers */
7839 ha_copy = lpfc_sli4_eratt_read(phba);
7842 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7843 "0299 Invalid SLI revision (%d)\n",
7848 spin_unlock_irq(&phba->hbalock);
7854 * lpfc_intr_state_check - Check device state for interrupt handling
7855 * @phba: Pointer to HBA context.
7857 * This inline routine checks whether a device or its PCI slot is in a state
7858 * that the interrupt should be handled.
7860 * This function returns 0 if the device or the PCI slot is in a state that
7861 * interrupt should be handled, otherwise -EIO.
7864 lpfc_intr_state_check(struct lpfc_hba *phba)
7866 /* If the pci channel is offline, ignore all the interrupts */
7867 if (unlikely(pci_channel_offline(phba->pcidev)))
7870 /* Update device level interrupt statistics */
7871 phba->sli.slistat.sli_intr++;
7873 /* Ignore all interrupts during initialization. */
7874 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7881 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
7882 * @irq: Interrupt number.
7883 * @dev_id: The device context pointer.
7885 * This function is directly called from the PCI layer as an interrupt
7886 * service routine when device with SLI-3 interface spec is enabled with
7887 * MSI-X multi-message interrupt mode and there are slow-path events in
7888 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
7889 * interrupt mode, this function is called as part of the device-level
7890 * interrupt handler. When the PCI slot is in error recovery or the HBA
7891 * is undergoing initialization, the interrupt handler will not process
7892 * the interrupt. The link attention and ELS ring attention events are
7893 * handled by the worker thread. The interrupt handler signals the worker
7894 * thread and returns for these events. This function is called without
7895 * any lock held. It gets the hbalock to access and update SLI data
7898 * This function returns IRQ_HANDLED when interrupt is handled else it
7902 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
7904 struct lpfc_hba *phba;
7905 uint32_t ha_copy, hc_copy;
7906 uint32_t work_ha_copy;
7907 unsigned long status;
7908 unsigned long iflag;
7911 MAILBOX_t *mbox, *pmbox;
7912 struct lpfc_vport *vport;
7913 struct lpfc_nodelist *ndlp;
7914 struct lpfc_dmabuf *mp;
7919 * Get the driver's phba structure from the dev_id and
7920 * assume the HBA is not interrupting.
7922 phba = (struct lpfc_hba *)dev_id;
7924 if (unlikely(!phba))
7928 * Stuff needs to be attented to when this function is invoked as an
7929 * individual interrupt handler in MSI-X multi-message interrupt mode
7931 if (phba->intr_type == MSIX) {
7932 /* Check device state for handling interrupt */
7933 if (lpfc_intr_state_check(phba))
7935 /* Need to read HA REG for slow-path events */
7936 spin_lock_irqsave(&phba->hbalock, iflag);
7937 ha_copy = readl(phba->HAregaddr);
7938 /* If somebody is waiting to handle an eratt don't process it
7939 * here. The brdkill function will do this.
7941 if (phba->link_flag & LS_IGNORE_ERATT)
7942 ha_copy &= ~HA_ERATT;
7943 /* Check the need for handling ERATT in interrupt handler */
7944 if (ha_copy & HA_ERATT) {
7945 if (phba->hba_flag & HBA_ERATT_HANDLED)
7946 /* ERATT polling has handled ERATT */
7947 ha_copy &= ~HA_ERATT;
7949 /* Indicate interrupt handler handles ERATT */
7950 phba->hba_flag |= HBA_ERATT_HANDLED;
7954 * If there is deferred error attention, do not check for any
7957 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7958 spin_unlock_irqrestore(&phba->hbalock, iflag);
7962 /* Clear up only attention source related to slow-path */
7963 hc_copy = readl(phba->HCregaddr);
7964 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
7965 HC_LAINT_ENA | HC_ERINT_ENA),
7967 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
7969 writel(hc_copy, phba->HCregaddr);
7970 readl(phba->HAregaddr); /* flush */
7971 spin_unlock_irqrestore(&phba->hbalock, iflag);
7973 ha_copy = phba->ha_copy;
7975 work_ha_copy = ha_copy & phba->work_ha_mask;
7978 if (work_ha_copy & HA_LATT) {
7979 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
7981 * Turn off Link Attention interrupts
7982 * until CLEAR_LA done
7984 spin_lock_irqsave(&phba->hbalock, iflag);
7985 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
7986 control = readl(phba->HCregaddr);
7987 control &= ~HC_LAINT_ENA;
7988 writel(control, phba->HCregaddr);
7989 readl(phba->HCregaddr); /* flush */
7990 spin_unlock_irqrestore(&phba->hbalock, iflag);
7993 work_ha_copy &= ~HA_LATT;
7996 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
7998 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
7999 * the only slow ring.
8001 status = (work_ha_copy &
8002 (HA_RXMASK << (4*LPFC_ELS_RING)));
8003 status >>= (4*LPFC_ELS_RING);
8004 if (status & HA_RXMASK) {
8005 spin_lock_irqsave(&phba->hbalock, iflag);
8006 control = readl(phba->HCregaddr);
8008 lpfc_debugfs_slow_ring_trc(phba,
8009 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8011 (uint32_t)phba->sli.slistat.sli_intr);
8013 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
8014 lpfc_debugfs_slow_ring_trc(phba,
8016 "pwork:x%x hawork:x%x wait:x%x",
8017 phba->work_ha, work_ha_copy,
8018 (uint32_t)((unsigned long)
8019 &phba->work_waitq));
8022 ~(HC_R0INT_ENA << LPFC_ELS_RING);
8023 writel(control, phba->HCregaddr);
8024 readl(phba->HCregaddr); /* flush */
8027 lpfc_debugfs_slow_ring_trc(phba,
8028 "ISR slow ring: pwork:"
8029 "x%x hawork:x%x wait:x%x",
8030 phba->work_ha, work_ha_copy,
8031 (uint32_t)((unsigned long)
8032 &phba->work_waitq));
8034 spin_unlock_irqrestore(&phba->hbalock, iflag);
8037 spin_lock_irqsave(&phba->hbalock, iflag);
8038 if (work_ha_copy & HA_ERATT) {
8039 lpfc_sli_read_hs(phba);
8041 * Check if there is a deferred error condition
8044 if ((HS_FFER1 & phba->work_hs) &&
8045 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
8046 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
8047 phba->hba_flag |= DEFER_ERATT;
8048 /* Clear all interrupt enable conditions */
8049 writel(0, phba->HCregaddr);
8050 readl(phba->HCregaddr);
8054 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
8055 pmb = phba->sli.mbox_active;
8060 /* First check out the status word */
8061 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
8062 if (pmbox->mbxOwner != OWN_HOST) {
8063 spin_unlock_irqrestore(&phba->hbalock, iflag);
8065 * Stray Mailbox Interrupt, mbxCommand <cmd>
8066 * mbxStatus <status>
8068 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8070 "(%d):0304 Stray Mailbox "
8071 "Interrupt mbxCommand x%x "
8073 (vport ? vport->vpi : 0),
8076 /* clear mailbox attention bit */
8077 work_ha_copy &= ~HA_MBATT;
8079 phba->sli.mbox_active = NULL;
8080 spin_unlock_irqrestore(&phba->hbalock, iflag);
8081 phba->last_completion_time = jiffies;
8082 del_timer(&phba->sli.mbox_tmo);
8083 if (pmb->mbox_cmpl) {
8084 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8087 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8088 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8090 lpfc_debugfs_disc_trc(vport,
8091 LPFC_DISC_TRC_MBOX_VPORT,
8093 "status:x%x rpi:x%x",
8094 (uint32_t)pmbox->mbxStatus,
8095 pmbox->un.varWords[0], 0);
8097 if (!pmbox->mbxStatus) {
8098 mp = (struct lpfc_dmabuf *)
8100 ndlp = (struct lpfc_nodelist *)
8103 /* Reg_LOGIN of dflt RPI was
8104 * successful. new lets get
8105 * rid of the RPI using the
8108 lpfc_unreg_login(phba,
8110 pmbox->un.varWords[0],
8113 lpfc_mbx_cmpl_dflt_rpi;
8115 pmb->context2 = ndlp;
8117 rc = lpfc_sli_issue_mbox(phba,
8121 lpfc_printf_log(phba,
8124 "0350 rc should have"
8126 if (rc != MBX_NOT_FINISHED)
8127 goto send_current_mbox;
8131 &phba->pport->work_port_lock,
8133 phba->pport->work_port_events &=
8135 spin_unlock_irqrestore(
8136 &phba->pport->work_port_lock,
8138 lpfc_mbox_cmpl_put(phba, pmb);
8141 spin_unlock_irqrestore(&phba->hbalock, iflag);
8143 if ((work_ha_copy & HA_MBATT) &&
8144 (phba->sli.mbox_active == NULL)) {
8146 /* Process next mailbox command if there is one */
8148 rc = lpfc_sli_issue_mbox(phba, NULL,
8150 } while (rc == MBX_NOT_FINISHED);
8151 if (rc != MBX_SUCCESS)
8152 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8153 LOG_SLI, "0349 rc should be "
8157 spin_lock_irqsave(&phba->hbalock, iflag);
8158 phba->work_ha |= work_ha_copy;
8159 spin_unlock_irqrestore(&phba->hbalock, iflag);
8160 lpfc_worker_wake_up(phba);
8164 } /* lpfc_sli_sp_intr_handler */
8167 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8168 * @irq: Interrupt number.
8169 * @dev_id: The device context pointer.
8171 * This function is directly called from the PCI layer as an interrupt
8172 * service routine when device with SLI-3 interface spec is enabled with
8173 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8174 * ring event in the HBA. However, when the device is enabled with either
8175 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8176 * device-level interrupt handler. When the PCI slot is in error recovery
8177 * or the HBA is undergoing initialization, the interrupt handler will not
8178 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8179 * the intrrupt context. This function is called without any lock held.
8180 * It gets the hbalock to access and update SLI data structures.
8182 * This function returns IRQ_HANDLED when interrupt is handled else it
8186 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
8188 struct lpfc_hba *phba;
8190 unsigned long status;
8191 unsigned long iflag;
8193 /* Get the driver's phba structure from the dev_id and
8194 * assume the HBA is not interrupting.
8196 phba = (struct lpfc_hba *) dev_id;
8198 if (unlikely(!phba))
8202 * Stuff needs to be attented to when this function is invoked as an
8203 * individual interrupt handler in MSI-X multi-message interrupt mode
8205 if (phba->intr_type == MSIX) {
8206 /* Check device state for handling interrupt */
8207 if (lpfc_intr_state_check(phba))
8209 /* Need to read HA REG for FCP ring and other ring events */
8210 ha_copy = readl(phba->HAregaddr);
8211 /* Clear up only attention source related to fast-path */
8212 spin_lock_irqsave(&phba->hbalock, iflag);
8214 * If there is deferred error attention, do not check for
8217 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8218 spin_unlock_irqrestore(&phba->hbalock, iflag);
8221 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8223 readl(phba->HAregaddr); /* flush */
8224 spin_unlock_irqrestore(&phba->hbalock, iflag);
8226 ha_copy = phba->ha_copy;
8229 * Process all events on FCP ring. Take the optimized path for FCP IO.
8231 ha_copy &= ~(phba->work_ha_mask);
8233 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8234 status >>= (4*LPFC_FCP_RING);
8235 if (status & HA_RXMASK)
8236 lpfc_sli_handle_fast_ring_event(phba,
8237 &phba->sli.ring[LPFC_FCP_RING],
8240 if (phba->cfg_multi_ring_support == 2) {
8242 * Process all events on extra ring. Take the optimized path
8243 * for extra ring IO.
8245 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8246 status >>= (4*LPFC_EXTRA_RING);
8247 if (status & HA_RXMASK) {
8248 lpfc_sli_handle_fast_ring_event(phba,
8249 &phba->sli.ring[LPFC_EXTRA_RING],
8254 } /* lpfc_sli_fp_intr_handler */
8257 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8258 * @irq: Interrupt number.
8259 * @dev_id: The device context pointer.
8261 * This function is the HBA device-level interrupt handler to device with
8262 * SLI-3 interface spec, called from the PCI layer when either MSI or
8263 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8264 * requires driver attention. This function invokes the slow-path interrupt
8265 * attention handling function and fast-path interrupt attention handling
8266 * function in turn to process the relevant HBA attention events. This
8267 * function is called without any lock held. It gets the hbalock to access
8268 * and update SLI data structures.
8270 * This function returns IRQ_HANDLED when interrupt is handled, else it
8274 lpfc_sli_intr_handler(int irq, void *dev_id)
8276 struct lpfc_hba *phba;
8277 irqreturn_t sp_irq_rc, fp_irq_rc;
8278 unsigned long status1, status2;
8282 * Get the driver's phba structure from the dev_id and
8283 * assume the HBA is not interrupting.
8285 phba = (struct lpfc_hba *) dev_id;
8287 if (unlikely(!phba))
8290 /* Check device state for handling interrupt */
8291 if (lpfc_intr_state_check(phba))
8294 spin_lock(&phba->hbalock);
8295 phba->ha_copy = readl(phba->HAregaddr);
8296 if (unlikely(!phba->ha_copy)) {
8297 spin_unlock(&phba->hbalock);
8299 } else if (phba->ha_copy & HA_ERATT) {
8300 if (phba->hba_flag & HBA_ERATT_HANDLED)
8301 /* ERATT polling has handled ERATT */
8302 phba->ha_copy &= ~HA_ERATT;
8304 /* Indicate interrupt handler handles ERATT */
8305 phba->hba_flag |= HBA_ERATT_HANDLED;
8309 * If there is deferred error attention, do not check for any interrupt.
8311 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8312 spin_unlock_irq(&phba->hbalock);
8316 /* Clear attention sources except link and error attentions */
8317 hc_copy = readl(phba->HCregaddr);
8318 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
8319 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
8321 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
8322 writel(hc_copy, phba->HCregaddr);
8323 readl(phba->HAregaddr); /* flush */
8324 spin_unlock(&phba->hbalock);
8327 * Invokes slow-path host attention interrupt handling as appropriate.
8330 /* status of events with mailbox and link attention */
8331 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
8333 /* status of events with ELS ring */
8334 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
8335 status2 >>= (4*LPFC_ELS_RING);
8337 if (status1 || (status2 & HA_RXMASK))
8338 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
8340 sp_irq_rc = IRQ_NONE;
8343 * Invoke fast-path host attention interrupt handling as appropriate.
8346 /* status of events with FCP ring */
8347 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8348 status1 >>= (4*LPFC_FCP_RING);
8350 /* status of events with extra ring */
8351 if (phba->cfg_multi_ring_support == 2) {
8352 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8353 status2 >>= (4*LPFC_EXTRA_RING);
8357 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
8358 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
8360 fp_irq_rc = IRQ_NONE;
8362 /* Return device-level interrupt handling status */
8363 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
8364 } /* lpfc_sli_intr_handler */
8367 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8368 * @phba: pointer to lpfc hba data structure.
8370 * This routine is invoked by the worker thread to process all the pending
8371 * SLI4 FCP abort XRI events.
8373 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
8375 struct lpfc_cq_event *cq_event;
8377 /* First, declare the fcp xri abort event has been handled */
8378 spin_lock_irq(&phba->hbalock);
8379 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
8380 spin_unlock_irq(&phba->hbalock);
8381 /* Now, handle all the fcp xri abort events */
8382 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
8383 /* Get the first event from the head of the event queue */
8384 spin_lock_irq(&phba->hbalock);
8385 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8386 cq_event, struct lpfc_cq_event, list);
8387 spin_unlock_irq(&phba->hbalock);
8388 /* Notify aborted XRI for FCP work queue */
8389 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8390 /* Free the event processed back to the free pool */
8391 lpfc_sli4_cq_event_release(phba, cq_event);
8396 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8397 * @phba: pointer to lpfc hba data structure.
8399 * This routine is invoked by the worker thread to process all the pending
8400 * SLI4 els abort xri events.
8402 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
8404 struct lpfc_cq_event *cq_event;
8406 /* First, declare the els xri abort event has been handled */
8407 spin_lock_irq(&phba->hbalock);
8408 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
8409 spin_unlock_irq(&phba->hbalock);
8410 /* Now, handle all the els xri abort events */
8411 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
8412 /* Get the first event from the head of the event queue */
8413 spin_lock_irq(&phba->hbalock);
8414 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8415 cq_event, struct lpfc_cq_event, list);
8416 spin_unlock_irq(&phba->hbalock);
8417 /* Notify aborted XRI for ELS work queue */
8418 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8419 /* Free the event processed back to the free pool */
8420 lpfc_sli4_cq_event_release(phba, cq_event);
8425 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8426 * @phba: pointer to lpfc hba data structure
8427 * @pIocbIn: pointer to the rspiocbq
8428 * @pIocbOut: pointer to the cmdiocbq
8429 * @wcqe: pointer to the complete wcqe
8431 * This routine transfers the fields of a command iocbq to a response iocbq
8432 * by copying all the IOCB fields from command iocbq and transferring the
8433 * completion status information from the complete wcqe.
8436 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
8437 struct lpfc_iocbq *pIocbIn,
8438 struct lpfc_iocbq *pIocbOut,
8439 struct lpfc_wcqe_complete *wcqe)
8441 unsigned long iflags;
8442 size_t offset = offsetof(struct lpfc_iocbq, iocb);
8444 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
8445 sizeof(struct lpfc_iocbq) - offset);
8446 /* Map WCQE parameters into irspiocb parameters */
8447 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
8448 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
8449 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
8450 pIocbIn->iocb.un.fcpi.fcpi_parm =
8451 pIocbOut->iocb.un.fcpi.fcpi_parm -
8452 wcqe->total_data_placed;
8454 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8456 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8457 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
8460 /* Pick up HBA exchange busy condition */
8461 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
8462 spin_lock_irqsave(&phba->hbalock, iflags);
8463 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
8464 spin_unlock_irqrestore(&phba->hbalock, iflags);
8469 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8470 * @phba: Pointer to HBA context object.
8471 * @wcqe: Pointer to work-queue completion queue entry.
8473 * This routine handles an ELS work-queue completion event and construct
8474 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8475 * discovery engine to handle.
8477 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8479 static struct lpfc_iocbq *
8480 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
8481 struct lpfc_iocbq *irspiocbq)
8483 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8484 struct lpfc_iocbq *cmdiocbq;
8485 struct lpfc_wcqe_complete *wcqe;
8486 unsigned long iflags;
8488 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
8489 spin_lock_irqsave(&phba->hbalock, iflags);
8490 pring->stats.iocb_event++;
8491 /* Look up the ELS command IOCB and create pseudo response IOCB */
8492 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8493 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8494 spin_unlock_irqrestore(&phba->hbalock, iflags);
8496 if (unlikely(!cmdiocbq)) {
8497 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8498 "0386 ELS complete with no corresponding "
8499 "cmdiocb: iotag (%d)\n",
8500 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8501 lpfc_sli_release_iocbq(phba, irspiocbq);
8505 /* Fake the irspiocbq and copy necessary response information */
8506 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
8512 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8513 * @phba: Pointer to HBA context object.
8514 * @cqe: Pointer to mailbox completion queue entry.
8516 * This routine process a mailbox completion queue entry with asynchrous
8519 * Return: true if work posted to worker thread, otherwise false.
8522 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8524 struct lpfc_cq_event *cq_event;
8525 unsigned long iflags;
8527 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8528 "0392 Async Event: word0:x%x, word1:x%x, "
8529 "word2:x%x, word3:x%x\n", mcqe->word0,
8530 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
8532 /* Allocate a new internal CQ_EVENT entry */
8533 cq_event = lpfc_sli4_cq_event_alloc(phba);
8535 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8536 "0394 Failed to allocate CQ_EVENT entry\n");
8540 /* Move the CQE into an asynchronous event entry */
8541 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
8542 spin_lock_irqsave(&phba->hbalock, iflags);
8543 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
8544 /* Set the async event flag */
8545 phba->hba_flag |= ASYNC_EVENT;
8546 spin_unlock_irqrestore(&phba->hbalock, iflags);
8552 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8553 * @phba: Pointer to HBA context object.
8554 * @cqe: Pointer to mailbox completion queue entry.
8556 * This routine process a mailbox completion queue entry with mailbox
8559 * Return: true if work posted to worker thread, otherwise false.
8562 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8564 uint32_t mcqe_status;
8565 MAILBOX_t *mbox, *pmbox;
8566 struct lpfc_mqe *mqe;
8567 struct lpfc_vport *vport;
8568 struct lpfc_nodelist *ndlp;
8569 struct lpfc_dmabuf *mp;
8570 unsigned long iflags;
8572 bool workposted = false;
8575 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8576 if (!bf_get(lpfc_trailer_completed, mcqe))
8577 goto out_no_mqe_complete;
8579 /* Get the reference to the active mbox command */
8580 spin_lock_irqsave(&phba->hbalock, iflags);
8581 pmb = phba->sli.mbox_active;
8582 if (unlikely(!pmb)) {
8583 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
8584 "1832 No pending MBOX command to handle\n");
8585 spin_unlock_irqrestore(&phba->hbalock, iflags);
8586 goto out_no_mqe_complete;
8588 spin_unlock_irqrestore(&phba->hbalock, iflags);
8590 pmbox = (MAILBOX_t *)&pmb->u.mqe;
8594 /* Reset heartbeat timer */
8595 phba->last_completion_time = jiffies;
8596 del_timer(&phba->sli.mbox_tmo);
8598 /* Move mbox data to caller's mailbox region, do endian swapping */
8599 if (pmb->mbox_cmpl && mbox)
8600 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
8601 /* Set the mailbox status with SLI4 range 0x4000 */
8602 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
8603 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
8604 bf_set(lpfc_mqe_status, mqe,
8605 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8607 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8608 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8609 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
8610 "MBOX dflt rpi: status:x%x rpi:x%x",
8612 pmbox->un.varWords[0], 0);
8613 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
8614 mp = (struct lpfc_dmabuf *)(pmb->context1);
8615 ndlp = (struct lpfc_nodelist *)pmb->context2;
8616 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8617 * RID of the PPI using the same mbox buffer.
8619 lpfc_unreg_login(phba, vport->vpi,
8620 pmbox->un.varWords[0], pmb);
8621 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
8623 pmb->context2 = ndlp;
8625 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
8627 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8628 LOG_SLI, "0385 rc should "
8629 "have been MBX_BUSY\n");
8630 if (rc != MBX_NOT_FINISHED)
8631 goto send_current_mbox;
8634 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8635 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8636 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8638 /* There is mailbox completion work to do */
8639 spin_lock_irqsave(&phba->hbalock, iflags);
8640 __lpfc_mbox_cmpl_put(phba, pmb);
8641 phba->work_ha |= HA_MBATT;
8642 spin_unlock_irqrestore(&phba->hbalock, iflags);
8646 spin_lock_irqsave(&phba->hbalock, iflags);
8647 /* Release the mailbox command posting token */
8648 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8649 /* Setting active mailbox pointer need to be in sync to flag clear */
8650 phba->sli.mbox_active = NULL;
8651 spin_unlock_irqrestore(&phba->hbalock, iflags);
8652 /* Wake up worker thread to post the next pending mailbox command */
8653 lpfc_worker_wake_up(phba);
8654 out_no_mqe_complete:
8655 if (bf_get(lpfc_trailer_consumed, mcqe))
8656 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
8661 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8662 * @phba: Pointer to HBA context object.
8663 * @cqe: Pointer to mailbox completion queue entry.
8665 * This routine process a mailbox completion queue entry, it invokes the
8666 * proper mailbox complete handling or asynchrous event handling routine
8667 * according to the MCQE's async bit.
8669 * Return: true if work posted to worker thread, otherwise false.
8672 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8674 struct lpfc_mcqe mcqe;
8677 /* Copy the mailbox MCQE and convert endian order as needed */
8678 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
8680 /* Invoke the proper event handling routine */
8681 if (!bf_get(lpfc_trailer_async, &mcqe))
8682 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
8684 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
8689 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8690 * @phba: Pointer to HBA context object.
8691 * @wcqe: Pointer to work-queue completion queue entry.
8693 * This routine handles an ELS work-queue completion event.
8695 * Return: true if work posted to worker thread, otherwise false.
8698 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
8699 struct lpfc_wcqe_complete *wcqe)
8701 struct lpfc_iocbq *irspiocbq;
8702 unsigned long iflags;
8704 /* Get an irspiocbq for later ELS response processing use */
8705 irspiocbq = lpfc_sli_get_iocbq(phba);
8707 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8708 "0387 Failed to allocate an iocbq\n");
8712 /* Save off the slow-path queue event for work thread to process */
8713 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
8714 spin_lock_irqsave(&phba->hbalock, iflags);
8715 list_add_tail(&irspiocbq->cq_event.list,
8716 &phba->sli4_hba.sp_queue_event);
8717 phba->hba_flag |= HBA_SP_QUEUE_EVT;
8718 spin_unlock_irqrestore(&phba->hbalock, iflags);
8724 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8725 * @phba: Pointer to HBA context object.
8726 * @wcqe: Pointer to work-queue completion queue entry.
8728 * This routine handles slow-path WQ entry comsumed event by invoking the
8729 * proper WQ release routine to the slow-path WQ.
8732 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
8733 struct lpfc_wcqe_release *wcqe)
8735 /* Check for the slow-path ELS work queue */
8736 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
8737 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
8738 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8740 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8741 "2579 Slow-path wqe consume event carries "
8742 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8743 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
8744 phba->sli4_hba.els_wq->queue_id);
8748 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8749 * @phba: Pointer to HBA context object.
8750 * @cq: Pointer to a WQ completion queue.
8751 * @wcqe: Pointer to work-queue completion queue entry.
8753 * This routine handles an XRI abort event.
8755 * Return: true if work posted to worker thread, otherwise false.
8758 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
8759 struct lpfc_queue *cq,
8760 struct sli4_wcqe_xri_aborted *wcqe)
8762 bool workposted = false;
8763 struct lpfc_cq_event *cq_event;
8764 unsigned long iflags;
8766 /* Allocate a new internal CQ_EVENT entry */
8767 cq_event = lpfc_sli4_cq_event_alloc(phba);
8769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8770 "0602 Failed to allocate CQ_EVENT entry\n");
8774 /* Move the CQE into the proper xri abort event list */
8775 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
8776 switch (cq->subtype) {
8778 spin_lock_irqsave(&phba->hbalock, iflags);
8779 list_add_tail(&cq_event->list,
8780 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
8781 /* Set the fcp xri abort event flag */
8782 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
8783 spin_unlock_irqrestore(&phba->hbalock, iflags);
8787 spin_lock_irqsave(&phba->hbalock, iflags);
8788 list_add_tail(&cq_event->list,
8789 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8790 /* Set the els xri abort event flag */
8791 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
8792 spin_unlock_irqrestore(&phba->hbalock, iflags);
8796 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8797 "0603 Invalid work queue CQE subtype (x%x)\n",
8806 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8807 * @phba: Pointer to HBA context object.
8808 * @rcqe: Pointer to receive-queue completion queue entry.
8810 * This routine process a receive-queue completion queue entry.
8812 * Return: true if work posted to worker thread, otherwise false.
8815 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
8817 bool workposted = false;
8818 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
8819 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
8820 struct hbq_dmabuf *dma_buf;
8822 unsigned long iflags;
8824 if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
8827 status = bf_get(lpfc_rcqe_status, rcqe);
8829 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
8830 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8831 "2537 Receive Frame Truncated!!\n");
8832 case FC_STATUS_RQ_SUCCESS:
8833 lpfc_sli4_rq_release(hrq, drq);
8834 spin_lock_irqsave(&phba->hbalock, iflags);
8835 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
8837 spin_unlock_irqrestore(&phba->hbalock, iflags);
8840 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
8841 /* save off the frame for the word thread to process */
8842 list_add_tail(&dma_buf->cq_event.list,
8843 &phba->sli4_hba.sp_queue_event);
8844 /* Frame received */
8845 phba->hba_flag |= HBA_SP_QUEUE_EVT;
8846 spin_unlock_irqrestore(&phba->hbalock, iflags);
8849 case FC_STATUS_INSUFF_BUF_NEED_BUF:
8850 case FC_STATUS_INSUFF_BUF_FRM_DISC:
8851 /* Post more buffers if possible */
8852 spin_lock_irqsave(&phba->hbalock, iflags);
8853 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
8854 spin_unlock_irqrestore(&phba->hbalock, iflags);
8863 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
8864 * @phba: Pointer to HBA context object.
8865 * @cq: Pointer to the completion queue.
8866 * @wcqe: Pointer to a completion queue entry.
8868 * This routine process a slow-path work-queue or recieve queue completion queue
8871 * Return: true if work posted to worker thread, otherwise false.
8874 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
8875 struct lpfc_cqe *cqe)
8877 struct lpfc_cqe cqevt;
8878 bool workposted = false;
8880 /* Copy the work queue CQE and convert endian order if needed */
8881 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
8883 /* Check and process for different type of WCQE and dispatch */
8884 switch (bf_get(lpfc_cqe_code, &cqevt)) {
8885 case CQE_CODE_COMPL_WQE:
8886 /* Process the WQ/RQ complete event */
8887 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
8888 (struct lpfc_wcqe_complete *)&cqevt);
8890 case CQE_CODE_RELEASE_WQE:
8891 /* Process the WQ release event */
8892 lpfc_sli4_sp_handle_rel_wcqe(phba,
8893 (struct lpfc_wcqe_release *)&cqevt);
8895 case CQE_CODE_XRI_ABORTED:
8896 /* Process the WQ XRI abort event */
8897 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
8898 (struct sli4_wcqe_xri_aborted *)&cqevt);
8900 case CQE_CODE_RECEIVE:
8901 /* Process the RQ event */
8902 workposted = lpfc_sli4_sp_handle_rcqe(phba,
8903 (struct lpfc_rcqe *)&cqevt);
8906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8907 "0388 Not a valid WCQE code: x%x\n",
8908 bf_get(lpfc_cqe_code, &cqevt));
8915 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
8916 * @phba: Pointer to HBA context object.
8917 * @eqe: Pointer to fast-path event queue entry.
8919 * This routine process a event queue entry from the slow-path event queue.
8920 * It will check the MajorCode and MinorCode to determine this is for a
8921 * completion event on a completion queue, if not, an error shall be logged
8922 * and just return. Otherwise, it will get to the corresponding completion
8923 * queue and process all the entries on that completion queue, rearm the
8924 * completion queue, and then return.
8928 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
8930 struct lpfc_queue *cq = NULL, *childq, *speq;
8931 struct lpfc_cqe *cqe;
8932 bool workposted = false;
8936 if (bf_get(lpfc_eqe_major_code, eqe) != 0) {
8937 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8938 "0359 Not a valid slow-path completion "
8939 "event: majorcode=x%x, minorcode=x%x\n",
8940 bf_get(lpfc_eqe_major_code, eqe),
8941 bf_get(lpfc_eqe_minor_code, eqe));
8945 /* Get the reference to the corresponding CQ */
8946 cqid = bf_get(lpfc_eqe_resource_id, eqe);
8948 /* Search for completion queue pointer matching this cqid */
8949 speq = phba->sli4_hba.sp_eq;
8950 list_for_each_entry(childq, &speq->child_list, list) {
8951 if (childq->queue_id == cqid) {
8956 if (unlikely(!cq)) {
8957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8958 "0365 Slow-path CQ identifier (%d) does "
8959 "not exist\n", cqid);
8963 /* Process all the entries to the CQ */
8966 while ((cqe = lpfc_sli4_cq_get(cq))) {
8967 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
8968 if (!(++ecount % LPFC_GET_QE_REL_INT))
8969 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8973 while ((cqe = lpfc_sli4_cq_get(cq))) {
8974 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
8975 if (!(++ecount % LPFC_GET_QE_REL_INT))
8976 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8980 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8981 "0370 Invalid completion queue type (%d)\n",
8986 /* Catch the no cq entry condition, log an error */
8987 if (unlikely(ecount == 0))
8988 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8989 "0371 No entry from the CQ: identifier "
8990 "(x%x), type (%d)\n", cq->queue_id, cq->type);
8992 /* In any case, flash and re-arm the RCQ */
8993 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
8995 /* wake up worker thread if there are works to be done */
8997 lpfc_worker_wake_up(phba);
9001 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9002 * @eqe: Pointer to fast-path completion queue entry.
9004 * This routine process a fast-path work queue completion entry from fast-path
9005 * event queue for FCP command response completion.
9008 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
9009 struct lpfc_wcqe_complete *wcqe)
9011 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
9012 struct lpfc_iocbq *cmdiocbq;
9013 struct lpfc_iocbq irspiocbq;
9014 unsigned long iflags;
9016 spin_lock_irqsave(&phba->hbalock, iflags);
9017 pring->stats.iocb_event++;
9018 spin_unlock_irqrestore(&phba->hbalock, iflags);
9020 /* Check for response status */
9021 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
9022 /* If resource errors reported from HBA, reduce queue
9023 * depth of the SCSI device.
9025 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
9026 IOSTAT_LOCAL_REJECT) &&
9027 (wcqe->parameter == IOERR_NO_RESOURCES)) {
9028 phba->lpfc_rampdown_queue_depth(phba);
9030 /* Log the error status */
9031 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9032 "0373 FCP complete error: status=x%x, "
9033 "hw_status=x%x, total_data_specified=%d, "
9034 "parameter=x%x, word3=x%x\n",
9035 bf_get(lpfc_wcqe_c_status, wcqe),
9036 bf_get(lpfc_wcqe_c_hw_status, wcqe),
9037 wcqe->total_data_placed, wcqe->parameter,
9041 /* Look up the FCP command IOCB and create pseudo response IOCB */
9042 spin_lock_irqsave(&phba->hbalock, iflags);
9043 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
9044 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9045 spin_unlock_irqrestore(&phba->hbalock, iflags);
9046 if (unlikely(!cmdiocbq)) {
9047 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9048 "0374 FCP complete with no corresponding "
9049 "cmdiocb: iotag (%d)\n",
9050 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9053 if (unlikely(!cmdiocbq->iocb_cmpl)) {
9054 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9055 "0375 FCP cmdiocb not callback function "
9057 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9061 /* Fake the irspiocb and copy necessary response information */
9062 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
9064 /* Pass the cmd_iocb and the rsp state to the upper layer */
9065 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
9069 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9070 * @phba: Pointer to HBA context object.
9071 * @cq: Pointer to completion queue.
9072 * @wcqe: Pointer to work-queue completion queue entry.
9074 * This routine handles an fast-path WQ entry comsumed event by invoking the
9075 * proper WQ release routine to the slow-path WQ.
9078 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9079 struct lpfc_wcqe_release *wcqe)
9081 struct lpfc_queue *childwq;
9082 bool wqid_matched = false;
9085 /* Check for fast-path FCP work queue release */
9086 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
9087 list_for_each_entry(childwq, &cq->child_list, list) {
9088 if (childwq->queue_id == fcp_wqid) {
9089 lpfc_sli4_wq_release(childwq,
9090 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9091 wqid_matched = true;
9095 /* Report warning log message if no match found */
9096 if (wqid_matched != true)
9097 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9098 "2580 Fast-path wqe consume event carries "
9099 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
9103 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9104 * @cq: Pointer to the completion queue.
9105 * @eqe: Pointer to fast-path completion queue entry.
9107 * This routine process a fast-path work queue completion entry from fast-path
9108 * event queue for FCP command response completion.
9111 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9112 struct lpfc_cqe *cqe)
9114 struct lpfc_wcqe_release wcqe;
9115 bool workposted = false;
9117 /* Copy the work queue CQE and convert endian order if needed */
9118 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9120 /* Check and process for different type of WCQE and dispatch */
9121 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9122 case CQE_CODE_COMPL_WQE:
9123 /* Process the WQ complete event */
9124 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9125 (struct lpfc_wcqe_complete *)&wcqe);
9127 case CQE_CODE_RELEASE_WQE:
9128 /* Process the WQ release event */
9129 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9130 (struct lpfc_wcqe_release *)&wcqe);
9132 case CQE_CODE_XRI_ABORTED:
9133 /* Process the WQ XRI abort event */
9134 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9135 (struct sli4_wcqe_xri_aborted *)&wcqe);
9138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9139 "0144 Not a valid WCQE code: x%x\n",
9140 bf_get(lpfc_wcqe_c_code, &wcqe));
9147 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9148 * @phba: Pointer to HBA context object.
9149 * @eqe: Pointer to fast-path event queue entry.
9151 * This routine process a event queue entry from the fast-path event queue.
9152 * It will check the MajorCode and MinorCode to determine this is for a
9153 * completion event on a completion queue, if not, an error shall be logged
9154 * and just return. Otherwise, it will get to the corresponding completion
9155 * queue and process all the entries on the completion queue, rearm the
9156 * completion queue, and then return.
9159 lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9162 struct lpfc_queue *cq;
9163 struct lpfc_cqe *cqe;
9164 bool workposted = false;
9168 if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0)) {
9169 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9170 "0366 Not a valid fast-path completion "
9171 "event: majorcode=x%x, minorcode=x%x\n",
9172 bf_get(lpfc_eqe_major_code, eqe),
9173 bf_get(lpfc_eqe_minor_code, eqe));
9177 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9178 if (unlikely(!cq)) {
9179 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9180 "0367 Fast-path completion queue does not "
9185 /* Get the reference to the corresponding CQ */
9186 cqid = bf_get(lpfc_eqe_resource_id, eqe);
9187 if (unlikely(cqid != cq->queue_id)) {
9188 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9189 "0368 Miss-matched fast-path completion "
9190 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9191 cqid, cq->queue_id);
9195 /* Process all the entries to the CQ */
9196 while ((cqe = lpfc_sli4_cq_get(cq))) {
9197 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9198 if (!(++ecount % LPFC_GET_QE_REL_INT))
9199 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9202 /* Catch the no cq entry condition */
9203 if (unlikely(ecount == 0))
9204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9205 "0369 No entry from fast-path completion "
9206 "queue fcpcqid=%d\n", cq->queue_id);
9208 /* In any case, flash and re-arm the CQ */
9209 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9211 /* wake up worker thread if there are works to be done */
9213 lpfc_worker_wake_up(phba);
9217 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9219 struct lpfc_eqe *eqe;
9221 /* walk all the EQ entries and drop on the floor */
9222 while ((eqe = lpfc_sli4_eq_get(eq)))
9225 /* Clear and re-arm the EQ */
9226 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9230 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9231 * @irq: Interrupt number.
9232 * @dev_id: The device context pointer.
9234 * This function is directly called from the PCI layer as an interrupt
9235 * service routine when device with SLI-4 interface spec is enabled with
9236 * MSI-X multi-message interrupt mode and there are slow-path events in
9237 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9238 * interrupt mode, this function is called as part of the device-level
9239 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9240 * undergoing initialization, the interrupt handler will not process the
9241 * interrupt. The link attention and ELS ring attention events are handled
9242 * by the worker thread. The interrupt handler signals the worker thread
9243 * and returns for these events. This function is called without any lock
9244 * held. It gets the hbalock to access and update SLI data structures.
9246 * This function returns IRQ_HANDLED when interrupt is handled else it
9250 lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9252 struct lpfc_hba *phba;
9253 struct lpfc_queue *speq;
9254 struct lpfc_eqe *eqe;
9255 unsigned long iflag;
9259 * Get the driver's phba structure from the dev_id
9261 phba = (struct lpfc_hba *)dev_id;
9263 if (unlikely(!phba))
9266 /* Get to the EQ struct associated with this vector */
9267 speq = phba->sli4_hba.sp_eq;
9269 /* Check device state for handling interrupt */
9270 if (unlikely(lpfc_intr_state_check(phba))) {
9271 /* Check again for link_state with lock held */
9272 spin_lock_irqsave(&phba->hbalock, iflag);
9273 if (phba->link_state < LPFC_LINK_DOWN)
9274 /* Flush, clear interrupt, and rearm the EQ */
9275 lpfc_sli4_eq_flush(phba, speq);
9276 spin_unlock_irqrestore(&phba->hbalock, iflag);
9281 * Process all the event on FCP slow-path EQ
9283 while ((eqe = lpfc_sli4_eq_get(speq))) {
9284 lpfc_sli4_sp_handle_eqe(phba, eqe);
9285 if (!(++ecount % LPFC_GET_QE_REL_INT))
9286 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
9289 /* Always clear and re-arm the slow-path EQ */
9290 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
9292 /* Catch the no cq entry condition */
9293 if (unlikely(ecount == 0)) {
9294 if (phba->intr_type == MSIX)
9295 /* MSI-X treated interrupt served as no EQ share INT */
9296 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9297 "0357 MSI-X interrupt with no EQE\n");
9299 /* Non MSI-X treated on interrupt as EQ share INT */
9304 } /* lpfc_sli4_sp_intr_handler */
9307 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9308 * @irq: Interrupt number.
9309 * @dev_id: The device context pointer.
9311 * This function is directly called from the PCI layer as an interrupt
9312 * service routine when device with SLI-4 interface spec is enabled with
9313 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9314 * ring event in the HBA. However, when the device is enabled with either
9315 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9316 * device-level interrupt handler. When the PCI slot is in error recovery
9317 * or the HBA is undergoing initialization, the interrupt handler will not
9318 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9319 * the intrrupt context. This function is called without any lock held.
9320 * It gets the hbalock to access and update SLI data structures. Note that,
9321 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9322 * equal to that of FCP CQ index.
9324 * This function returns IRQ_HANDLED when interrupt is handled else it
9328 lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
9330 struct lpfc_hba *phba;
9331 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9332 struct lpfc_queue *fpeq;
9333 struct lpfc_eqe *eqe;
9334 unsigned long iflag;
9338 /* Get the driver's phba structure from the dev_id */
9339 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
9340 phba = fcp_eq_hdl->phba;
9341 fcp_eqidx = fcp_eq_hdl->idx;
9343 if (unlikely(!phba))
9346 /* Get to the EQ struct associated with this vector */
9347 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
9349 /* Check device state for handling interrupt */
9350 if (unlikely(lpfc_intr_state_check(phba))) {
9351 /* Check again for link_state with lock held */
9352 spin_lock_irqsave(&phba->hbalock, iflag);
9353 if (phba->link_state < LPFC_LINK_DOWN)
9354 /* Flush, clear interrupt, and rearm the EQ */
9355 lpfc_sli4_eq_flush(phba, fpeq);
9356 spin_unlock_irqrestore(&phba->hbalock, iflag);
9361 * Process all the event on FCP fast-path EQ
9363 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9364 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
9365 if (!(++ecount % LPFC_GET_QE_REL_INT))
9366 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
9369 /* Always clear and re-arm the fast-path EQ */
9370 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
9372 if (unlikely(ecount == 0)) {
9373 if (phba->intr_type == MSIX)
9374 /* MSI-X treated interrupt served as no EQ share INT */
9375 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9376 "0358 MSI-X interrupt with no EQE\n");
9378 /* Non MSI-X treated on interrupt as EQ share INT */
9383 } /* lpfc_sli4_fp_intr_handler */
9386 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9387 * @irq: Interrupt number.
9388 * @dev_id: The device context pointer.
9390 * This function is the device-level interrupt handler to device with SLI-4
9391 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9392 * interrupt mode is enabled and there is an event in the HBA which requires
9393 * driver attention. This function invokes the slow-path interrupt attention
9394 * handling function and fast-path interrupt attention handling function in
9395 * turn to process the relevant HBA attention events. This function is called
9396 * without any lock held. It gets the hbalock to access and update SLI data
9399 * This function returns IRQ_HANDLED when interrupt is handled, else it
9403 lpfc_sli4_intr_handler(int irq, void *dev_id)
9405 struct lpfc_hba *phba;
9406 irqreturn_t sp_irq_rc, fp_irq_rc;
9407 bool fp_handled = false;
9410 /* Get the driver's phba structure from the dev_id */
9411 phba = (struct lpfc_hba *)dev_id;
9413 if (unlikely(!phba))
9417 * Invokes slow-path host attention interrupt handling as appropriate.
9419 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
9422 * Invoke fast-path host attention interrupt handling as appropriate.
9424 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
9425 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
9426 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
9427 if (fp_irq_rc == IRQ_HANDLED)
9431 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
9432 } /* lpfc_sli4_intr_handler */
9435 * lpfc_sli4_queue_free - free a queue structure and associated memory
9436 * @queue: The queue structure to free.
9438 * This function frees a queue structure and the DMAable memeory used for
9439 * the host resident queue. This function must be called after destroying the
9443 lpfc_sli4_queue_free(struct lpfc_queue *queue)
9445 struct lpfc_dmabuf *dmabuf;
9450 while (!list_empty(&queue->page_list)) {
9451 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
9453 dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE,
9454 dmabuf->virt, dmabuf->phys);
9462 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9463 * @phba: The HBA that this queue is being created on.
9464 * @entry_size: The size of each queue entry for this queue.
9465 * @entry count: The number of entries that this queue will handle.
9467 * This function allocates a queue structure and the DMAable memory used for
9468 * the host resident queue. This function must be called before creating the
9472 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
9473 uint32_t entry_count)
9475 struct lpfc_queue *queue;
9476 struct lpfc_dmabuf *dmabuf;
9477 int x, total_qe_count;
9481 queue = kzalloc(sizeof(struct lpfc_queue) +
9482 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
9485 queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE;
9486 INIT_LIST_HEAD(&queue->list);
9487 INIT_LIST_HEAD(&queue->page_list);
9488 INIT_LIST_HEAD(&queue->child_list);
9489 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
9490 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9493 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9494 PAGE_SIZE, &dmabuf->phys,
9496 if (!dmabuf->virt) {
9500 memset(dmabuf->virt, 0, PAGE_SIZE);
9501 dmabuf->buffer_tag = x;
9502 list_add_tail(&dmabuf->list, &queue->page_list);
9503 /* initialize queue's entry array */
9504 dma_pointer = dmabuf->virt;
9505 for (; total_qe_count < entry_count &&
9506 dma_pointer < (PAGE_SIZE + dmabuf->virt);
9507 total_qe_count++, dma_pointer += entry_size) {
9508 queue->qe[total_qe_count].address = dma_pointer;
9511 queue->entry_size = entry_size;
9512 queue->entry_count = entry_count;
9517 lpfc_sli4_queue_free(queue);
9522 * lpfc_eq_create - Create an Event Queue on the HBA
9523 * @phba: HBA structure that indicates port to create a queue on.
9524 * @eq: The queue structure to use to create the event queue.
9525 * @imax: The maximum interrupt per second limit.
9527 * This function creates an event queue, as detailed in @eq, on a port,
9528 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9530 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9531 * is used to get the entry count and entry size that are necessary to
9532 * determine the number of pages to allocate and use for this queue. This
9533 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9534 * event queue. This function is asynchronous and will wait for the mailbox
9535 * command to finish before continuing.
9537 * On success this function will return a zero. If unable to allocate enough
9538 * memory this function will return ENOMEM. If the queue create mailbox command
9539 * fails this function will return ENXIO.
9542 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
9544 struct lpfc_mbx_eq_create *eq_create;
9546 int rc, length, status = 0;
9547 struct lpfc_dmabuf *dmabuf;
9548 uint32_t shdr_status, shdr_add_status;
9549 union lpfc_sli4_cfg_shdr *shdr;
9552 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9555 length = (sizeof(struct lpfc_mbx_eq_create) -
9556 sizeof(struct lpfc_sli4_cfg_mhdr));
9557 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9558 LPFC_MBOX_OPCODE_EQ_CREATE,
9559 length, LPFC_SLI4_MBX_EMBED);
9560 eq_create = &mbox->u.mqe.un.eq_create;
9561 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
9563 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
9565 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
9566 /* Calculate delay multiper from maximum interrupt per second */
9567 dmult = LPFC_DMULT_CONST/imax - 1;
9568 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
9570 switch (eq->entry_count) {
9572 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9573 "0360 Unsupported EQ count. (%d)\n",
9575 if (eq->entry_count < 256)
9577 /* otherwise default to smallest count (drop through) */
9579 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9583 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9587 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9591 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9595 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9599 list_for_each_entry(dmabuf, &eq->page_list, list) {
9600 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9601 putPaddrLow(dmabuf->phys);
9602 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9603 putPaddrHigh(dmabuf->phys);
9605 mbox->vport = phba->pport;
9606 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9607 mbox->context1 = NULL;
9608 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9609 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
9610 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9611 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9612 if (shdr_status || shdr_add_status || rc) {
9613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9614 "2500 EQ_CREATE mailbox failed with "
9615 "status x%x add_status x%x, mbx status x%x\n",
9616 shdr_status, shdr_add_status, rc);
9620 eq->subtype = LPFC_NONE;
9621 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
9622 if (eq->queue_id == 0xFFFF)
9627 mempool_free(mbox, phba->mbox_mem_pool);
9632 * lpfc_cq_create - Create a Completion Queue on the HBA
9633 * @phba: HBA structure that indicates port to create a queue on.
9634 * @cq: The queue structure to use to create the completion queue.
9635 * @eq: The event queue to bind this completion queue to.
9637 * This function creates a completion queue, as detailed in @wq, on a port,
9638 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9640 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9641 * is used to get the entry count and entry size that are necessary to
9642 * determine the number of pages to allocate and use for this queue. The @eq
9643 * is used to indicate which event queue to bind this completion queue to. This
9644 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9645 * completion queue. This function is asynchronous and will wait for the mailbox
9646 * command to finish before continuing.
9648 * On success this function will return a zero. If unable to allocate enough
9649 * memory this function will return ENOMEM. If the queue create mailbox command
9650 * fails this function will return ENXIO.
9653 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
9654 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
9656 struct lpfc_mbx_cq_create *cq_create;
9657 struct lpfc_dmabuf *dmabuf;
9659 int rc, length, status = 0;
9660 uint32_t shdr_status, shdr_add_status;
9661 union lpfc_sli4_cfg_shdr *shdr;
9663 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9666 length = (sizeof(struct lpfc_mbx_cq_create) -
9667 sizeof(struct lpfc_sli4_cfg_mhdr));
9668 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9669 LPFC_MBOX_OPCODE_CQ_CREATE,
9670 length, LPFC_SLI4_MBX_EMBED);
9671 cq_create = &mbox->u.mqe.un.cq_create;
9672 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
9674 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
9675 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
9676 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
9677 switch (cq->entry_count) {
9679 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9680 "0361 Unsupported CQ count. (%d)\n",
9682 if (cq->entry_count < 256)
9684 /* otherwise default to smallest count (drop through) */
9686 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9690 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9694 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9698 list_for_each_entry(dmabuf, &cq->page_list, list) {
9699 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9700 putPaddrLow(dmabuf->phys);
9701 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9702 putPaddrHigh(dmabuf->phys);
9704 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9706 /* The IOCTL status is embedded in the mailbox subheader. */
9707 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
9708 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9709 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9710 if (shdr_status || shdr_add_status || rc) {
9711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9712 "2501 CQ_CREATE mailbox failed with "
9713 "status x%x add_status x%x, mbx status x%x\n",
9714 shdr_status, shdr_add_status, rc);
9718 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9719 if (cq->queue_id == 0xFFFF) {
9723 /* link the cq onto the parent eq child list */
9724 list_add_tail(&cq->list, &eq->child_list);
9725 /* Set up completion queue's type and subtype */
9727 cq->subtype = subtype;
9728 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9733 mempool_free(mbox, phba->mbox_mem_pool);
9738 * lpfc_mq_create - Create a mailbox Queue on the HBA
9739 * @phba: HBA structure that indicates port to create a queue on.
9740 * @mq: The queue structure to use to create the mailbox queue.
9742 * This function creates a mailbox queue, as detailed in @mq, on a port,
9743 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
9745 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9746 * is used to get the entry count and entry size that are necessary to
9747 * determine the number of pages to allocate and use for this queue. This
9748 * function will send the MQ_CREATE mailbox command to the HBA to setup the
9749 * mailbox queue. This function is asynchronous and will wait for the mailbox
9750 * command to finish before continuing.
9752 * On success this function will return a zero. If unable to allocate enough
9753 * memory this function will return ENOMEM. If the queue create mailbox command
9754 * fails this function will return ENXIO.
9757 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
9758 struct lpfc_queue *cq, uint32_t subtype)
9760 struct lpfc_mbx_mq_create *mq_create;
9761 struct lpfc_dmabuf *dmabuf;
9763 int rc, length, status = 0;
9764 uint32_t shdr_status, shdr_add_status;
9765 union lpfc_sli4_cfg_shdr *shdr;
9767 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9770 length = (sizeof(struct lpfc_mbx_mq_create) -
9771 sizeof(struct lpfc_sli4_cfg_mhdr));
9772 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9773 LPFC_MBOX_OPCODE_MQ_CREATE,
9774 length, LPFC_SLI4_MBX_EMBED);
9775 mq_create = &mbox->u.mqe.un.mq_create;
9776 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
9778 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
9780 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
9781 switch (mq->entry_count) {
9783 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9784 "0362 Unsupported MQ count. (%d)\n",
9786 if (mq->entry_count < 16)
9788 /* otherwise default to smallest count (drop through) */
9790 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9794 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9798 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9802 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9806 list_for_each_entry(dmabuf, &mq->page_list, list) {
9807 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9808 putPaddrLow(dmabuf->phys);
9809 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9810 putPaddrHigh(dmabuf->phys);
9812 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9813 /* The IOCTL status is embedded in the mailbox subheader. */
9814 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
9815 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9816 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9817 if (shdr_status || shdr_add_status || rc) {
9818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9819 "2502 MQ_CREATE mailbox failed with "
9820 "status x%x add_status x%x, mbx status x%x\n",
9821 shdr_status, shdr_add_status, rc);
9825 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
9826 if (mq->queue_id == 0xFFFF) {
9831 mq->subtype = subtype;
9835 /* link the mq onto the parent cq child list */
9836 list_add_tail(&mq->list, &cq->child_list);
9838 mempool_free(mbox, phba->mbox_mem_pool);
9843 * lpfc_wq_create - Create a Work Queue on the HBA
9844 * @phba: HBA structure that indicates port to create a queue on.
9845 * @wq: The queue structure to use to create the work queue.
9846 * @cq: The completion queue to bind this work queue to.
9847 * @subtype: The subtype of the work queue indicating its functionality.
9849 * This function creates a work queue, as detailed in @wq, on a port, described
9850 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
9852 * The @phba struct is used to send mailbox command to HBA. The @wq struct
9853 * is used to get the entry count and entry size that are necessary to
9854 * determine the number of pages to allocate and use for this queue. The @cq
9855 * is used to indicate which completion queue to bind this work queue to. This
9856 * function will send the WQ_CREATE mailbox command to the HBA to setup the
9857 * work queue. This function is asynchronous and will wait for the mailbox
9858 * command to finish before continuing.
9860 * On success this function will return a zero. If unable to allocate enough
9861 * memory this function will return ENOMEM. If the queue create mailbox command
9862 * fails this function will return ENXIO.
9865 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
9866 struct lpfc_queue *cq, uint32_t subtype)
9868 struct lpfc_mbx_wq_create *wq_create;
9869 struct lpfc_dmabuf *dmabuf;
9871 int rc, length, status = 0;
9872 uint32_t shdr_status, shdr_add_status;
9873 union lpfc_sli4_cfg_shdr *shdr;
9875 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9878 length = (sizeof(struct lpfc_mbx_wq_create) -
9879 sizeof(struct lpfc_sli4_cfg_mhdr));
9880 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9881 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
9882 length, LPFC_SLI4_MBX_EMBED);
9883 wq_create = &mbox->u.mqe.un.wq_create;
9884 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
9886 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
9888 list_for_each_entry(dmabuf, &wq->page_list, list) {
9889 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9890 putPaddrLow(dmabuf->phys);
9891 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9892 putPaddrHigh(dmabuf->phys);
9894 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9895 /* The IOCTL status is embedded in the mailbox subheader. */
9896 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
9897 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9898 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9899 if (shdr_status || shdr_add_status || rc) {
9900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9901 "2503 WQ_CREATE mailbox failed with "
9902 "status x%x add_status x%x, mbx status x%x\n",
9903 shdr_status, shdr_add_status, rc);
9907 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
9908 if (wq->queue_id == 0xFFFF) {
9913 wq->subtype = subtype;
9917 /* link the wq onto the parent cq child list */
9918 list_add_tail(&wq->list, &cq->child_list);
9920 mempool_free(mbox, phba->mbox_mem_pool);
9925 * lpfc_rq_create - Create a Receive Queue on the HBA
9926 * @phba: HBA structure that indicates port to create a queue on.
9927 * @hrq: The queue structure to use to create the header receive queue.
9928 * @drq: The queue structure to use to create the data receive queue.
9929 * @cq: The completion queue to bind this work queue to.
9931 * This function creates a receive buffer queue pair , as detailed in @hrq and
9932 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
9935 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
9936 * struct is used to get the entry count that is necessary to determine the
9937 * number of pages to use for this queue. The @cq is used to indicate which
9938 * completion queue to bind received buffers that are posted to these queues to.
9939 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
9940 * receive queue pair. This function is asynchronous and will wait for the
9941 * mailbox command to finish before continuing.
9943 * On success this function will return a zero. If unable to allocate enough
9944 * memory this function will return ENOMEM. If the queue create mailbox command
9945 * fails this function will return ENXIO.
9948 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
9949 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
9951 struct lpfc_mbx_rq_create *rq_create;
9952 struct lpfc_dmabuf *dmabuf;
9954 int rc, length, status = 0;
9955 uint32_t shdr_status, shdr_add_status;
9956 union lpfc_sli4_cfg_shdr *shdr;
9958 if (hrq->entry_count != drq->entry_count)
9960 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9963 length = (sizeof(struct lpfc_mbx_rq_create) -
9964 sizeof(struct lpfc_sli4_cfg_mhdr));
9965 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9966 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
9967 length, LPFC_SLI4_MBX_EMBED);
9968 rq_create = &mbox->u.mqe.un.rq_create;
9969 switch (hrq->entry_count) {
9971 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9972 "2535 Unsupported RQ count. (%d)\n",
9974 if (hrq->entry_count < 512)
9976 /* otherwise default to smallest count (drop through) */
9978 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9979 LPFC_RQ_RING_SIZE_512);
9982 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9983 LPFC_RQ_RING_SIZE_1024);
9986 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9987 LPFC_RQ_RING_SIZE_2048);
9990 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9991 LPFC_RQ_RING_SIZE_4096);
9994 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
9996 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
9998 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10000 list_for_each_entry(dmabuf, &hrq->page_list, list) {
10001 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10002 putPaddrLow(dmabuf->phys);
10003 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10004 putPaddrHigh(dmabuf->phys);
10006 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10007 /* The IOCTL status is embedded in the mailbox subheader. */
10008 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10009 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10010 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10011 if (shdr_status || shdr_add_status || rc) {
10012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10013 "2504 RQ_CREATE mailbox failed with "
10014 "status x%x add_status x%x, mbx status x%x\n",
10015 shdr_status, shdr_add_status, rc);
10019 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10020 if (hrq->queue_id == 0xFFFF) {
10024 hrq->type = LPFC_HRQ;
10025 hrq->subtype = subtype;
10026 hrq->host_index = 0;
10027 hrq->hba_index = 0;
10029 /* now create the data queue */
10030 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10031 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10032 length, LPFC_SLI4_MBX_EMBED);
10033 switch (drq->entry_count) {
10035 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10036 "2536 Unsupported RQ count. (%d)\n",
10038 if (drq->entry_count < 512)
10040 /* otherwise default to smallest count (drop through) */
10042 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10043 LPFC_RQ_RING_SIZE_512);
10046 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10047 LPFC_RQ_RING_SIZE_1024);
10050 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10051 LPFC_RQ_RING_SIZE_2048);
10054 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10055 LPFC_RQ_RING_SIZE_4096);
10058 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10060 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10062 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10063 LPFC_DATA_BUF_SIZE);
10064 list_for_each_entry(dmabuf, &drq->page_list, list) {
10065 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10066 putPaddrLow(dmabuf->phys);
10067 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10068 putPaddrHigh(dmabuf->phys);
10070 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10071 /* The IOCTL status is embedded in the mailbox subheader. */
10072 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10073 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10074 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10075 if (shdr_status || shdr_add_status || rc) {
10079 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10080 if (drq->queue_id == 0xFFFF) {
10084 drq->type = LPFC_DRQ;
10085 drq->subtype = subtype;
10086 drq->host_index = 0;
10087 drq->hba_index = 0;
10089 /* link the header and data RQs onto the parent cq child list */
10090 list_add_tail(&hrq->list, &cq->child_list);
10091 list_add_tail(&drq->list, &cq->child_list);
10094 mempool_free(mbox, phba->mbox_mem_pool);
10099 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10100 * @eq: The queue structure associated with the queue to destroy.
10102 * This function destroys a queue, as detailed in @eq by sending an mailbox
10103 * command, specific to the type of queue, to the HBA.
10105 * The @eq struct is used to get the queue ID of the queue to destroy.
10107 * On success this function will return a zero. If the queue destroy mailbox
10108 * command fails this function will return ENXIO.
10111 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10113 LPFC_MBOXQ_t *mbox;
10114 int rc, length, status = 0;
10115 uint32_t shdr_status, shdr_add_status;
10116 union lpfc_sli4_cfg_shdr *shdr;
10120 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10123 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10124 sizeof(struct lpfc_sli4_cfg_mhdr));
10125 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10126 LPFC_MBOX_OPCODE_EQ_DESTROY,
10127 length, LPFC_SLI4_MBX_EMBED);
10128 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10130 mbox->vport = eq->phba->pport;
10131 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10133 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10134 /* The IOCTL status is embedded in the mailbox subheader. */
10135 shdr = (union lpfc_sli4_cfg_shdr *)
10136 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10137 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10138 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10139 if (shdr_status || shdr_add_status || rc) {
10140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10141 "2505 EQ_DESTROY mailbox failed with "
10142 "status x%x add_status x%x, mbx status x%x\n",
10143 shdr_status, shdr_add_status, rc);
10147 /* Remove eq from any list */
10148 list_del_init(&eq->list);
10149 mempool_free(mbox, eq->phba->mbox_mem_pool);
10154 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10155 * @cq: The queue structure associated with the queue to destroy.
10157 * This function destroys a queue, as detailed in @cq by sending an mailbox
10158 * command, specific to the type of queue, to the HBA.
10160 * The @cq struct is used to get the queue ID of the queue to destroy.
10162 * On success this function will return a zero. If the queue destroy mailbox
10163 * command fails this function will return ENXIO.
10166 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
10168 LPFC_MBOXQ_t *mbox;
10169 int rc, length, status = 0;
10170 uint32_t shdr_status, shdr_add_status;
10171 union lpfc_sli4_cfg_shdr *shdr;
10175 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
10178 length = (sizeof(struct lpfc_mbx_cq_destroy) -
10179 sizeof(struct lpfc_sli4_cfg_mhdr));
10180 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10181 LPFC_MBOX_OPCODE_CQ_DESTROY,
10182 length, LPFC_SLI4_MBX_EMBED);
10183 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
10185 mbox->vport = cq->phba->pport;
10186 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10187 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
10188 /* The IOCTL status is embedded in the mailbox subheader. */
10189 shdr = (union lpfc_sli4_cfg_shdr *)
10190 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
10191 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10192 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10193 if (shdr_status || shdr_add_status || rc) {
10194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10195 "2506 CQ_DESTROY mailbox failed with "
10196 "status x%x add_status x%x, mbx status x%x\n",
10197 shdr_status, shdr_add_status, rc);
10200 /* Remove cq from any list */
10201 list_del_init(&cq->list);
10202 mempool_free(mbox, cq->phba->mbox_mem_pool);
10207 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10208 * @qm: The queue structure associated with the queue to destroy.
10210 * This function destroys a queue, as detailed in @mq by sending an mailbox
10211 * command, specific to the type of queue, to the HBA.
10213 * The @mq struct is used to get the queue ID of the queue to destroy.
10215 * On success this function will return a zero. If the queue destroy mailbox
10216 * command fails this function will return ENXIO.
10219 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
10221 LPFC_MBOXQ_t *mbox;
10222 int rc, length, status = 0;
10223 uint32_t shdr_status, shdr_add_status;
10224 union lpfc_sli4_cfg_shdr *shdr;
10228 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
10231 length = (sizeof(struct lpfc_mbx_mq_destroy) -
10232 sizeof(struct lpfc_sli4_cfg_mhdr));
10233 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10234 LPFC_MBOX_OPCODE_MQ_DESTROY,
10235 length, LPFC_SLI4_MBX_EMBED);
10236 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
10238 mbox->vport = mq->phba->pport;
10239 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10240 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
10241 /* The IOCTL status is embedded in the mailbox subheader. */
10242 shdr = (union lpfc_sli4_cfg_shdr *)
10243 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
10244 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10245 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10246 if (shdr_status || shdr_add_status || rc) {
10247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10248 "2507 MQ_DESTROY mailbox failed with "
10249 "status x%x add_status x%x, mbx status x%x\n",
10250 shdr_status, shdr_add_status, rc);
10253 /* Remove mq from any list */
10254 list_del_init(&mq->list);
10255 mempool_free(mbox, mq->phba->mbox_mem_pool);
10260 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10261 * @wq: The queue structure associated with the queue to destroy.
10263 * This function destroys a queue, as detailed in @wq by sending an mailbox
10264 * command, specific to the type of queue, to the HBA.
10266 * The @wq struct is used to get the queue ID of the queue to destroy.
10268 * On success this function will return a zero. If the queue destroy mailbox
10269 * command fails this function will return ENXIO.
10272 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
10274 LPFC_MBOXQ_t *mbox;
10275 int rc, length, status = 0;
10276 uint32_t shdr_status, shdr_add_status;
10277 union lpfc_sli4_cfg_shdr *shdr;
10281 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
10284 length = (sizeof(struct lpfc_mbx_wq_destroy) -
10285 sizeof(struct lpfc_sli4_cfg_mhdr));
10286 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10287 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
10288 length, LPFC_SLI4_MBX_EMBED);
10289 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
10291 mbox->vport = wq->phba->pport;
10292 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10293 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
10294 shdr = (union lpfc_sli4_cfg_shdr *)
10295 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
10296 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10297 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10298 if (shdr_status || shdr_add_status || rc) {
10299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10300 "2508 WQ_DESTROY mailbox failed with "
10301 "status x%x add_status x%x, mbx status x%x\n",
10302 shdr_status, shdr_add_status, rc);
10305 /* Remove wq from any list */
10306 list_del_init(&wq->list);
10307 mempool_free(mbox, wq->phba->mbox_mem_pool);
10312 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10313 * @rq: The queue structure associated with the queue to destroy.
10315 * This function destroys a queue, as detailed in @rq by sending an mailbox
10316 * command, specific to the type of queue, to the HBA.
10318 * The @rq struct is used to get the queue ID of the queue to destroy.
10320 * On success this function will return a zero. If the queue destroy mailbox
10321 * command fails this function will return ENXIO.
10324 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10325 struct lpfc_queue *drq)
10327 LPFC_MBOXQ_t *mbox;
10328 int rc, length, status = 0;
10329 uint32_t shdr_status, shdr_add_status;
10330 union lpfc_sli4_cfg_shdr *shdr;
10334 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
10337 length = (sizeof(struct lpfc_mbx_rq_destroy) -
10338 sizeof(struct mbox_header));
10339 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10340 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
10341 length, LPFC_SLI4_MBX_EMBED);
10342 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10344 mbox->vport = hrq->phba->pport;
10345 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10346 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
10347 /* The IOCTL status is embedded in the mailbox subheader. */
10348 shdr = (union lpfc_sli4_cfg_shdr *)
10349 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10350 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10351 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10352 if (shdr_status || shdr_add_status || rc) {
10353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10354 "2509 RQ_DESTROY mailbox failed with "
10355 "status x%x add_status x%x, mbx status x%x\n",
10356 shdr_status, shdr_add_status, rc);
10357 if (rc != MBX_TIMEOUT)
10358 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10361 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10363 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
10364 shdr = (union lpfc_sli4_cfg_shdr *)
10365 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10366 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10367 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10368 if (shdr_status || shdr_add_status || rc) {
10369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10370 "2510 RQ_DESTROY mailbox failed with "
10371 "status x%x add_status x%x, mbx status x%x\n",
10372 shdr_status, shdr_add_status, rc);
10375 list_del_init(&hrq->list);
10376 list_del_init(&drq->list);
10377 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10382 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10383 * @phba: The virtual port for which this call being executed.
10384 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10385 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10386 * @xritag: the xritag that ties this io to the SGL pages.
10388 * This routine will post the sgl pages for the IO that has the xritag
10389 * that is in the iocbq structure. The xritag is assigned during iocbq
10390 * creation and persists for as long as the driver is loaded.
10391 * if the caller has fewer than 256 scatter gather segments to map then
10392 * pdma_phys_addr1 should be 0.
10393 * If the caller needs to map more than 256 scatter gather segment then
10394 * pdma_phys_addr1 should be a valid physical address.
10395 * physical address for SGLs must be 64 byte aligned.
10396 * If you are going to map 2 SGL's then the first one must have 256 entries
10397 * the second sgl can have between 1 and 256 entries.
10401 * -ENXIO, -ENOMEM - Failure
10404 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
10405 dma_addr_t pdma_phys_addr0,
10406 dma_addr_t pdma_phys_addr1,
10409 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
10410 LPFC_MBOXQ_t *mbox;
10412 uint32_t shdr_status, shdr_add_status;
10413 union lpfc_sli4_cfg_shdr *shdr;
10415 if (xritag == NO_XRI) {
10416 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10417 "0364 Invalid param:\n");
10421 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10425 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10426 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
10427 sizeof(struct lpfc_mbx_post_sgl_pages) -
10428 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
10430 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
10431 &mbox->u.mqe.un.post_sgl_pages;
10432 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
10433 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
10435 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
10436 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
10437 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
10438 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
10440 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
10441 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
10442 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
10443 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
10444 if (!phba->sli4_hba.intr_enable)
10445 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10447 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10448 /* The IOCTL status is embedded in the mailbox subheader. */
10449 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
10450 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10451 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10452 if (rc != MBX_TIMEOUT)
10453 mempool_free(mbox, phba->mbox_mem_pool);
10454 if (shdr_status || shdr_add_status || rc) {
10455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10456 "2511 POST_SGL mailbox failed with "
10457 "status x%x add_status x%x, mbx status x%x\n",
10458 shdr_status, shdr_add_status, rc);
10464 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10465 * @phba: The virtual port for which this call being executed.
10467 * This routine will remove all of the sgl pages registered with the hba.
10471 * -ENXIO, -ENOMEM - Failure
10474 lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
10476 LPFC_MBOXQ_t *mbox;
10478 uint32_t shdr_status, shdr_add_status;
10479 union lpfc_sli4_cfg_shdr *shdr;
10481 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10485 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10486 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
10487 LPFC_SLI4_MBX_EMBED);
10488 if (!phba->sli4_hba.intr_enable)
10489 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10491 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10492 /* The IOCTL status is embedded in the mailbox subheader. */
10493 shdr = (union lpfc_sli4_cfg_shdr *)
10494 &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
10495 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10496 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10497 if (rc != MBX_TIMEOUT)
10498 mempool_free(mbox, phba->mbox_mem_pool);
10499 if (shdr_status || shdr_add_status || rc) {
10500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10501 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10502 "status x%x add_status x%x, mbx status x%x\n",
10503 shdr_status, shdr_add_status, rc);
10510 * lpfc_sli4_next_xritag - Get an xritag for the io
10511 * @phba: Pointer to HBA context object.
10513 * This function gets an xritag for the iocb. If there is no unused xritag
10514 * it will return 0xffff.
10515 * The function returns the allocated xritag if successful, else returns zero.
10516 * Zero is not a valid xritag.
10517 * The caller is not required to hold any lock.
10520 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
10524 spin_lock_irq(&phba->hbalock);
10525 xritag = phba->sli4_hba.next_xri;
10526 if ((xritag != (uint16_t) -1) && xritag <
10527 (phba->sli4_hba.max_cfg_param.max_xri
10528 + phba->sli4_hba.max_cfg_param.xri_base)) {
10529 phba->sli4_hba.next_xri++;
10530 phba->sli4_hba.max_cfg_param.xri_used++;
10531 spin_unlock_irq(&phba->hbalock);
10534 spin_unlock_irq(&phba->hbalock);
10535 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10536 "2004 Failed to allocate XRI.last XRITAG is %d"
10537 " Max XRI is %d, Used XRI is %d\n",
10538 phba->sli4_hba.next_xri,
10539 phba->sli4_hba.max_cfg_param.max_xri,
10540 phba->sli4_hba.max_cfg_param.xri_used);
10545 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10546 * @phba: pointer to lpfc hba data structure.
10548 * This routine is invoked to post a block of driver's sgl pages to the
10549 * HBA using non-embedded mailbox command. No Lock is held. This routine
10550 * is only called when the driver is loading and after all IO has been
10554 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
10556 struct lpfc_sglq *sglq_entry;
10557 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10558 struct sgl_page_pairs *sgl_pg_pairs;
10560 LPFC_MBOXQ_t *mbox;
10561 uint32_t reqlen, alloclen, pg_pairs;
10563 uint16_t xritag_start = 0;
10564 int els_xri_cnt, rc = 0;
10565 uint32_t shdr_status, shdr_add_status;
10566 union lpfc_sli4_cfg_shdr *shdr;
10568 /* The number of sgls to be posted */
10569 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
10571 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
10572 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10573 if (reqlen > PAGE_SIZE) {
10574 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10575 "2559 Block sgl registration required DMA "
10576 "size (%d) great than a page\n", reqlen);
10579 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10582 "2560 Failed to allocate mbox cmd memory\n");
10586 /* Allocate DMA memory and set up the non-embedded mailbox command */
10587 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10588 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10589 LPFC_SLI4_MBX_NEMBED);
10591 if (alloclen < reqlen) {
10592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10593 "0285 Allocated DMA memory size (%d) is "
10594 "less than the requested DMA memory "
10595 "size (%d)\n", alloclen, reqlen);
10596 lpfc_sli4_mbox_cmd_free(phba, mbox);
10599 /* Get the first SGE entry from the non-embedded DMA memory */
10600 viraddr = mbox->sge_array->addr[0];
10602 /* Set up the SGL pages in the non-embedded DMA pages */
10603 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10604 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10606 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
10607 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
10608 /* Set up the sge entry */
10609 sgl_pg_pairs->sgl_pg0_addr_lo =
10610 cpu_to_le32(putPaddrLow(sglq_entry->phys));
10611 sgl_pg_pairs->sgl_pg0_addr_hi =
10612 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
10613 sgl_pg_pairs->sgl_pg1_addr_lo =
10614 cpu_to_le32(putPaddrLow(0));
10615 sgl_pg_pairs->sgl_pg1_addr_hi =
10616 cpu_to_le32(putPaddrHigh(0));
10617 /* Keep the first xritag on the list */
10619 xritag_start = sglq_entry->sli4_xritag;
10622 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10623 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
10624 /* Perform endian conversion if necessary */
10625 sgl->word0 = cpu_to_le32(sgl->word0);
10627 if (!phba->sli4_hba.intr_enable)
10628 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10630 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10631 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10633 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10634 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10635 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10636 if (rc != MBX_TIMEOUT)
10637 lpfc_sli4_mbox_cmd_free(phba, mbox);
10638 if (shdr_status || shdr_add_status || rc) {
10639 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10640 "2513 POST_SGL_BLOCK mailbox command failed "
10641 "status x%x add_status x%x mbx status x%x\n",
10642 shdr_status, shdr_add_status, rc);
10649 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10650 * @phba: pointer to lpfc hba data structure.
10651 * @sblist: pointer to scsi buffer list.
10652 * @count: number of scsi buffers on the list.
10654 * This routine is invoked to post a block of @count scsi sgl pages from a
10655 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10660 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
10663 struct lpfc_scsi_buf *psb;
10664 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10665 struct sgl_page_pairs *sgl_pg_pairs;
10667 LPFC_MBOXQ_t *mbox;
10668 uint32_t reqlen, alloclen, pg_pairs;
10670 uint16_t xritag_start = 0;
10672 uint32_t shdr_status, shdr_add_status;
10673 dma_addr_t pdma_phys_bpl1;
10674 union lpfc_sli4_cfg_shdr *shdr;
10676 /* Calculate the requested length of the dma memory */
10677 reqlen = cnt * sizeof(struct sgl_page_pairs) +
10678 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10679 if (reqlen > PAGE_SIZE) {
10680 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10681 "0217 Block sgl registration required DMA "
10682 "size (%d) great than a page\n", reqlen);
10685 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10688 "0283 Failed to allocate mbox cmd memory\n");
10692 /* Allocate DMA memory and set up the non-embedded mailbox command */
10693 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10694 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10695 LPFC_SLI4_MBX_NEMBED);
10697 if (alloclen < reqlen) {
10698 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10699 "2561 Allocated DMA memory size (%d) is "
10700 "less than the requested DMA memory "
10701 "size (%d)\n", alloclen, reqlen);
10702 lpfc_sli4_mbox_cmd_free(phba, mbox);
10705 /* Get the first SGE entry from the non-embedded DMA memory */
10706 viraddr = mbox->sge_array->addr[0];
10708 /* Set up the SGL pages in the non-embedded DMA pages */
10709 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10710 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10713 list_for_each_entry(psb, sblist, list) {
10714 /* Set up the sge entry */
10715 sgl_pg_pairs->sgl_pg0_addr_lo =
10716 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
10717 sgl_pg_pairs->sgl_pg0_addr_hi =
10718 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
10719 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
10720 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
10722 pdma_phys_bpl1 = 0;
10723 sgl_pg_pairs->sgl_pg1_addr_lo =
10724 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
10725 sgl_pg_pairs->sgl_pg1_addr_hi =
10726 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
10727 /* Keep the first xritag on the list */
10729 xritag_start = psb->cur_iocbq.sli4_xritag;
10733 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10734 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
10735 /* Perform endian conversion if necessary */
10736 sgl->word0 = cpu_to_le32(sgl->word0);
10738 if (!phba->sli4_hba.intr_enable)
10739 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10741 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10742 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10744 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10745 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10746 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10747 if (rc != MBX_TIMEOUT)
10748 lpfc_sli4_mbox_cmd_free(phba, mbox);
10749 if (shdr_status || shdr_add_status || rc) {
10750 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10751 "2564 POST_SGL_BLOCK mailbox command failed "
10752 "status x%x add_status x%x mbx status x%x\n",
10753 shdr_status, shdr_add_status, rc);
10760 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
10761 * @phba: pointer to lpfc_hba struct that the frame was received on
10762 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10764 * This function checks the fields in the @fc_hdr to see if the FC frame is a
10765 * valid type of frame that the LPFC driver will handle. This function will
10766 * return a zero if the frame is a valid frame or a non zero value when the
10767 * frame does not pass the check.
10770 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
10772 char *rctl_names[] = FC_RCTL_NAMES_INIT;
10773 char *type_names[] = FC_TYPE_NAMES_INIT;
10774 struct fc_vft_header *fc_vft_hdr;
10776 switch (fc_hdr->fh_r_ctl) {
10777 case FC_RCTL_DD_UNCAT: /* uncategorized information */
10778 case FC_RCTL_DD_SOL_DATA: /* solicited data */
10779 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
10780 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
10781 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
10782 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
10783 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
10784 case FC_RCTL_DD_CMD_STATUS: /* command status */
10785 case FC_RCTL_ELS_REQ: /* extended link services request */
10786 case FC_RCTL_ELS_REP: /* extended link services reply */
10787 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
10788 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
10789 case FC_RCTL_BA_NOP: /* basic link service NOP */
10790 case FC_RCTL_BA_ABTS: /* basic link service abort */
10791 case FC_RCTL_BA_RMC: /* remove connection */
10792 case FC_RCTL_BA_ACC: /* basic accept */
10793 case FC_RCTL_BA_RJT: /* basic reject */
10794 case FC_RCTL_BA_PRMT:
10795 case FC_RCTL_ACK_1: /* acknowledge_1 */
10796 case FC_RCTL_ACK_0: /* acknowledge_0 */
10797 case FC_RCTL_P_RJT: /* port reject */
10798 case FC_RCTL_F_RJT: /* fabric reject */
10799 case FC_RCTL_P_BSY: /* port busy */
10800 case FC_RCTL_F_BSY: /* fabric busy to data frame */
10801 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
10802 case FC_RCTL_LCR: /* link credit reset */
10803 case FC_RCTL_END: /* end */
10805 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
10806 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10807 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
10808 return lpfc_fc_frame_check(phba, fc_hdr);
10812 switch (fc_hdr->fh_type) {
10823 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10824 "2538 Received frame rctl:%s type:%s\n",
10825 rctl_names[fc_hdr->fh_r_ctl],
10826 type_names[fc_hdr->fh_type]);
10829 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
10830 "2539 Dropped frame rctl:%s type:%s\n",
10831 rctl_names[fc_hdr->fh_r_ctl],
10832 type_names[fc_hdr->fh_type]);
10837 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
10838 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10840 * This function processes the FC header to retrieve the VFI from the VF
10841 * header, if one exists. This function will return the VFI if one exists
10842 * or 0 if no VSAN Header exists.
10845 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
10847 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10849 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
10851 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
10855 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
10856 * @phba: Pointer to the HBA structure to search for the vport on
10857 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10858 * @fcfi: The FC Fabric ID that the frame came from
10860 * This function searches the @phba for a vport that matches the content of the
10861 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
10862 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
10863 * returns the matching vport pointer or NULL if unable to match frame to a
10866 static struct lpfc_vport *
10867 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
10870 struct lpfc_vport **vports;
10871 struct lpfc_vport *vport = NULL;
10873 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
10874 fc_hdr->fh_d_id[1] << 8 |
10875 fc_hdr->fh_d_id[2]);
10877 vports = lpfc_create_vport_work_array(phba);
10878 if (vports != NULL)
10879 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
10880 if (phba->fcf.fcfi == fcfi &&
10881 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
10882 vports[i]->fc_myDID == did) {
10887 lpfc_destroy_vport_work_array(phba, vports);
10892 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
10893 * @vport: The vport to work on.
10895 * This function updates the receive sequence time stamp for this vport. The
10896 * receive sequence time stamp indicates the time that the last frame of the
10897 * the sequence that has been idle for the longest amount of time was received.
10898 * the driver uses this time stamp to indicate if any received sequences have
10902 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
10904 struct lpfc_dmabuf *h_buf;
10905 struct hbq_dmabuf *dmabuf = NULL;
10907 /* get the oldest sequence on the rcv list */
10908 h_buf = list_get_first(&vport->rcv_buffer_list,
10909 struct lpfc_dmabuf, list);
10912 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10913 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
10917 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
10918 * @vport: The vport that the received sequences were sent to.
10920 * This function cleans up all outstanding received sequences. This is called
10921 * by the driver when a link event or user action invalidates all the received
10925 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
10927 struct lpfc_dmabuf *h_buf, *hnext;
10928 struct lpfc_dmabuf *d_buf, *dnext;
10929 struct hbq_dmabuf *dmabuf = NULL;
10931 /* start with the oldest sequence on the rcv list */
10932 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10933 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10934 list_del_init(&dmabuf->hbuf.list);
10935 list_for_each_entry_safe(d_buf, dnext,
10936 &dmabuf->dbuf.list, list) {
10937 list_del_init(&d_buf->list);
10938 lpfc_in_buf_free(vport->phba, d_buf);
10940 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
10945 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
10946 * @vport: The vport that the received sequences were sent to.
10948 * This function determines whether any received sequences have timed out by
10949 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
10950 * indicates that there is at least one timed out sequence this routine will
10951 * go through the received sequences one at a time from most inactive to most
10952 * active to determine which ones need to be cleaned up. Once it has determined
10953 * that a sequence needs to be cleaned up it will simply free up the resources
10954 * without sending an abort.
10957 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
10959 struct lpfc_dmabuf *h_buf, *hnext;
10960 struct lpfc_dmabuf *d_buf, *dnext;
10961 struct hbq_dmabuf *dmabuf = NULL;
10962 unsigned long timeout;
10963 int abort_count = 0;
10965 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10966 vport->rcv_buffer_time_stamp);
10967 if (list_empty(&vport->rcv_buffer_list) ||
10968 time_before(jiffies, timeout))
10970 /* start with the oldest sequence on the rcv list */
10971 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10972 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10973 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10974 dmabuf->time_stamp);
10975 if (time_before(jiffies, timeout))
10978 list_del_init(&dmabuf->hbuf.list);
10979 list_for_each_entry_safe(d_buf, dnext,
10980 &dmabuf->dbuf.list, list) {
10981 list_del_init(&d_buf->list);
10982 lpfc_in_buf_free(vport->phba, d_buf);
10984 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
10987 lpfc_update_rcv_time_stamp(vport);
10991 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
10992 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
10994 * This function searches through the existing incomplete sequences that have
10995 * been sent to this @vport. If the frame matches one of the incomplete
10996 * sequences then the dbuf in the @dmabuf is added to the list of frames that
10997 * make up that sequence. If no sequence is found that matches this frame then
10998 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
10999 * This function returns a pointer to the first dmabuf in the sequence list that
11000 * the frame was linked to.
11002 static struct hbq_dmabuf *
11003 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
11005 struct fc_frame_header *new_hdr;
11006 struct fc_frame_header *temp_hdr;
11007 struct lpfc_dmabuf *d_buf;
11008 struct lpfc_dmabuf *h_buf;
11009 struct hbq_dmabuf *seq_dmabuf = NULL;
11010 struct hbq_dmabuf *temp_dmabuf = NULL;
11012 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11013 dmabuf->time_stamp = jiffies;
11014 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11015 /* Use the hdr_buf to find the sequence that this frame belongs to */
11016 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11017 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11018 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11019 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11020 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11022 /* found a pending sequence that matches this frame */
11023 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11028 * This indicates first frame received for this sequence.
11029 * Queue the buffer on the vport's rcv_buffer_list.
11031 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11032 lpfc_update_rcv_time_stamp(vport);
11035 temp_hdr = seq_dmabuf->hbuf.virt;
11036 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
11037 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
11038 list_del_init(&seq_dmabuf->hbuf.list);
11039 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11040 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11041 lpfc_update_rcv_time_stamp(vport);
11044 /* move this sequence to the tail to indicate a young sequence */
11045 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
11046 seq_dmabuf->time_stamp = jiffies;
11047 lpfc_update_rcv_time_stamp(vport);
11048 if (list_empty(&seq_dmabuf->dbuf.list)) {
11049 temp_hdr = dmabuf->hbuf.virt;
11050 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11053 /* find the correct place in the sequence to insert this frame */
11054 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
11055 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11056 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
11058 * If the frame's sequence count is greater than the frame on
11059 * the list then insert the frame right after this frame
11061 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
11062 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
11063 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
11071 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11072 * @vport: pointer to a vitural port
11073 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11075 * This function tries to abort from the partially assembed sequence, described
11076 * by the information from basic abbort @dmabuf. It checks to see whether such
11077 * partially assembled sequence held by the driver. If so, it shall free up all
11078 * the frames from the partially assembled sequence.
11081 * true -- if there is matching partially assembled sequence present and all
11082 * the frames freed with the sequence;
11083 * false -- if there is no matching partially assembled sequence present so
11084 * nothing got aborted in the lower layer driver
11087 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
11088 struct hbq_dmabuf *dmabuf)
11090 struct fc_frame_header *new_hdr;
11091 struct fc_frame_header *temp_hdr;
11092 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
11093 struct hbq_dmabuf *seq_dmabuf = NULL;
11095 /* Use the hdr_buf to find the sequence that matches this frame */
11096 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11097 INIT_LIST_HEAD(&dmabuf->hbuf.list);
11098 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11099 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11100 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11101 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11102 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11103 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11105 /* found a pending sequence that matches this frame */
11106 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11110 /* Free up all the frames from the partially assembled sequence */
11112 list_for_each_entry_safe(d_buf, n_buf,
11113 &seq_dmabuf->dbuf.list, list) {
11114 list_del_init(&d_buf->list);
11115 lpfc_in_buf_free(vport->phba, d_buf);
11123 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11124 * @phba: Pointer to HBA context object.
11125 * @cmd_iocbq: pointer to the command iocbq structure.
11126 * @rsp_iocbq: pointer to the response iocbq structure.
11128 * This function handles the sequence abort accept iocb command complete
11129 * event. It properly releases the memory allocated to the sequence abort
11133 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
11134 struct lpfc_iocbq *cmd_iocbq,
11135 struct lpfc_iocbq *rsp_iocbq)
11138 lpfc_sli_release_iocbq(phba, cmd_iocbq);
11142 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11143 * @phba: Pointer to HBA context object.
11144 * @fc_hdr: pointer to a FC frame header.
11146 * This function sends a basic accept to a previous unsol sequence abort
11147 * event after aborting the sequence handling.
11150 lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
11151 struct fc_frame_header *fc_hdr)
11153 struct lpfc_iocbq *ctiocb = NULL;
11154 struct lpfc_nodelist *ndlp;
11155 uint16_t oxid, rxid;
11156 uint32_t sid, fctl;
11159 if (!lpfc_is_link_up(phba))
11162 sid = sli4_sid_from_fc_hdr(fc_hdr);
11163 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
11164 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
11166 ndlp = lpfc_findnode_did(phba->pport, sid);
11168 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11169 "1268 Find ndlp returned NULL for oxid:x%x "
11170 "SID:x%x\n", oxid, sid);
11174 /* Allocate buffer for acc iocb */
11175 ctiocb = lpfc_sli_get_iocbq(phba);
11179 /* Extract the F_CTL field from FC_HDR */
11180 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
11182 icmd = &ctiocb->iocb;
11183 icmd->un.xseq64.bdl.bdeSize = 0;
11184 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
11185 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11186 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
11187 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
11189 /* Fill in the rest of iocb fields */
11190 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
11191 icmd->ulpBdeCount = 0;
11193 icmd->ulpClass = CLASS3;
11194 icmd->ulpContext = ndlp->nlp_rpi;
11196 ctiocb->iocb_cmpl = NULL;
11197 ctiocb->vport = phba->pport;
11198 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
11200 if (fctl & FC_FC_EX_CTX) {
11201 /* ABTS sent by responder to CT exchange, construction
11202 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11203 * field and RX_ID from ABTS for RX_ID field.
11205 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
11206 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
11207 ctiocb->sli4_xritag = oxid;
11209 /* ABTS sent by initiator to CT exchange, construction
11210 * of BA_ACC will need to allocate a new XRI as for the
11211 * XRI_TAG and RX_ID fields.
11213 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
11214 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
11215 ctiocb->sli4_xritag = NO_XRI;
11217 bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
11219 /* Xmit CT abts accept on exchange <xid> */
11220 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11221 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11222 CMD_XMIT_BLS_RSP64_CX, phba->link_state);
11223 lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
11227 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11228 * @vport: Pointer to the vport on which this sequence was received
11229 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11231 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11232 * receive sequence is only partially assembed by the driver, it shall abort
11233 * the partially assembled frames for the sequence. Otherwise, if the
11234 * unsolicited receive sequence has been completely assembled and passed to
11235 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11236 * unsolicited sequence has been aborted. After that, it will issue a basic
11237 * accept to accept the abort.
11240 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
11241 struct hbq_dmabuf *dmabuf)
11243 struct lpfc_hba *phba = vport->phba;
11244 struct fc_frame_header fc_hdr;
11248 /* Make a copy of fc_hdr before the dmabuf being released */
11249 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
11250 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
11252 if (fctl & FC_FC_EX_CTX) {
11254 * ABTS sent by responder to exchange, just free the buffer
11256 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11259 * ABTS sent by initiator to exchange, need to do cleanup
11261 /* Try to abort partially assembled seq */
11262 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
11264 /* Send abort to ULP if partially seq abort failed */
11265 if (abts_par == false)
11266 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
11268 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11270 /* Send basic accept (BA_ACC) to the abort requester */
11271 lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
11275 * lpfc_seq_complete - Indicates if a sequence is complete
11276 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11278 * This function checks the sequence, starting with the frame described by
11279 * @dmabuf, to see if all the frames associated with this sequence are present.
11280 * the frames associated with this sequence are linked to the @dmabuf using the
11281 * dbuf list. This function looks for two major things. 1) That the first frame
11282 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11283 * set. 3) That there are no holes in the sequence count. The function will
11284 * return 1 when the sequence is complete, otherwise it will return 0.
11287 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
11289 struct fc_frame_header *hdr;
11290 struct lpfc_dmabuf *d_buf;
11291 struct hbq_dmabuf *seq_dmabuf;
11295 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11296 /* make sure first fame of sequence has a sequence count of zero */
11297 if (hdr->fh_seq_cnt != seq_count)
11299 fctl = (hdr->fh_f_ctl[0] << 16 |
11300 hdr->fh_f_ctl[1] << 8 |
11302 /* If last frame of sequence we can return success. */
11303 if (fctl & FC_FC_END_SEQ)
11305 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
11306 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11307 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11308 /* If there is a hole in the sequence count then fail. */
11309 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
11311 fctl = (hdr->fh_f_ctl[0] << 16 |
11312 hdr->fh_f_ctl[1] << 8 |
11314 /* If last frame of sequence we can return success. */
11315 if (fctl & FC_FC_END_SEQ)
11322 * lpfc_prep_seq - Prep sequence for ULP processing
11323 * @vport: Pointer to the vport on which this sequence was received
11324 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11326 * This function takes a sequence, described by a list of frames, and creates
11327 * a list of iocbq structures to describe the sequence. This iocbq list will be
11328 * used to issue to the generic unsolicited sequence handler. This routine
11329 * returns a pointer to the first iocbq in the list. If the function is unable
11330 * to allocate an iocbq then it throw out the received frames that were not
11331 * able to be described and return a pointer to the first iocbq. If unable to
11332 * allocate any iocbqs (including the first) this function will return NULL.
11334 static struct lpfc_iocbq *
11335 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
11337 struct lpfc_dmabuf *d_buf, *n_buf;
11338 struct lpfc_iocbq *first_iocbq, *iocbq;
11339 struct fc_frame_header *fc_hdr;
11341 struct ulp_bde64 *pbde;
11343 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11344 /* remove from receive buffer list */
11345 list_del_init(&seq_dmabuf->hbuf.list);
11346 lpfc_update_rcv_time_stamp(vport);
11347 /* get the Remote Port's SID */
11348 sid = sli4_sid_from_fc_hdr(fc_hdr);
11349 /* Get an iocbq struct to fill in. */
11350 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
11352 /* Initialize the first IOCB. */
11353 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
11354 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
11355 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
11356 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
11357 first_iocbq->iocb.unsli3.rcvsli3.vpi =
11358 vport->vpi + vport->phba->vpi_base;
11359 /* put the first buffer into the first IOCBq */
11360 first_iocbq->context2 = &seq_dmabuf->dbuf;
11361 first_iocbq->context3 = NULL;
11362 first_iocbq->iocb.ulpBdeCount = 1;
11363 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11364 LPFC_DATA_BUF_SIZE;
11365 first_iocbq->iocb.un.rcvels.remoteID = sid;
11366 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11367 bf_get(lpfc_rcqe_length,
11368 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11370 iocbq = first_iocbq;
11372 * Each IOCBq can have two Buffers assigned, so go through the list
11373 * of buffers for this sequence and save two buffers in each IOCBq
11375 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
11377 lpfc_in_buf_free(vport->phba, d_buf);
11380 if (!iocbq->context3) {
11381 iocbq->context3 = d_buf;
11382 iocbq->iocb.ulpBdeCount++;
11383 pbde = (struct ulp_bde64 *)
11384 &iocbq->iocb.unsli3.sli3Words[4];
11385 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
11386 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11387 bf_get(lpfc_rcqe_length,
11388 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11390 iocbq = lpfc_sli_get_iocbq(vport->phba);
11393 first_iocbq->iocb.ulpStatus =
11394 IOSTAT_FCP_RSP_ERROR;
11395 first_iocbq->iocb.un.ulpWord[4] =
11396 IOERR_NO_RESOURCES;
11398 lpfc_in_buf_free(vport->phba, d_buf);
11401 iocbq->context2 = d_buf;
11402 iocbq->context3 = NULL;
11403 iocbq->iocb.ulpBdeCount = 1;
11404 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11405 LPFC_DATA_BUF_SIZE;
11406 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11407 bf_get(lpfc_rcqe_length,
11408 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11409 iocbq->iocb.un.rcvels.remoteID = sid;
11410 list_add_tail(&iocbq->list, &first_iocbq->list);
11413 return first_iocbq;
11417 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
11418 struct hbq_dmabuf *seq_dmabuf)
11420 struct fc_frame_header *fc_hdr;
11421 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
11422 struct lpfc_hba *phba = vport->phba;
11424 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11425 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
11427 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11428 "2707 Ring %d handler: Failed to allocate "
11429 "iocb Rctl x%x Type x%x received\n",
11431 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11434 if (!lpfc_complete_unsol_iocb(phba,
11435 &phba->sli.ring[LPFC_ELS_RING],
11436 iocbq, fc_hdr->fh_r_ctl,
11438 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11439 "2540 Ring %d handler: unexpected Rctl "
11440 "x%x Type x%x received\n",
11442 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11444 /* Free iocb created in lpfc_prep_seq */
11445 list_for_each_entry_safe(curr_iocb, next_iocb,
11446 &iocbq->list, list) {
11447 list_del_init(&curr_iocb->list);
11448 lpfc_sli_release_iocbq(phba, curr_iocb);
11450 lpfc_sli_release_iocbq(phba, iocbq);
11454 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11455 * @phba: Pointer to HBA context object.
11457 * This function is called with no lock held. This function processes all
11458 * the received buffers and gives it to upper layers when a received buffer
11459 * indicates that it is the final frame in the sequence. The interrupt
11460 * service routine processes received buffers at interrupt contexts and adds
11461 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11462 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11463 * appropriate receive function when the final frame in a sequence is received.
11466 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
11467 struct hbq_dmabuf *dmabuf)
11469 struct hbq_dmabuf *seq_dmabuf;
11470 struct fc_frame_header *fc_hdr;
11471 struct lpfc_vport *vport;
11474 /* Process each received buffer */
11475 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11476 /* check to see if this a valid type of frame */
11477 if (lpfc_fc_frame_check(phba, fc_hdr)) {
11478 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11481 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
11482 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
11483 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
11484 /* throw out the frame */
11485 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11488 /* Handle the basic abort sequence (BA_ABTS) event */
11489 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
11490 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
11494 /* Link this frame */
11495 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
11497 /* unable to add frame to vport - throw it out */
11498 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11501 /* If not last frame in sequence continue processing frames. */
11502 if (!lpfc_seq_complete(seq_dmabuf))
11505 /* Send the complete sequence to the upper layer protocol */
11506 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
11510 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11511 * @phba: pointer to lpfc hba data structure.
11513 * This routine is invoked to post rpi header templates to the
11514 * HBA consistent with the SLI-4 interface spec. This routine
11515 * posts a PAGE_SIZE memory region to the port to hold up to
11516 * PAGE_SIZE modulo 64 rpi context headers.
11518 * This routine does not require any locks. It's usage is expected
11519 * to be driver load or reset recovery when the driver is
11524 * EIO - The mailbox failed to complete successfully.
11525 * When this error occurs, the driver is not guaranteed
11526 * to have any rpi regions posted to the device and
11527 * must either attempt to repost the regions or take a
11531 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
11533 struct lpfc_rpi_hdr *rpi_page;
11536 /* Post all rpi memory regions to the port. */
11537 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
11538 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
11539 if (rc != MBX_SUCCESS) {
11540 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11541 "2008 Error %d posting all rpi "
11552 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11553 * @phba: pointer to lpfc hba data structure.
11554 * @rpi_page: pointer to the rpi memory region.
11556 * This routine is invoked to post a single rpi header to the
11557 * HBA consistent with the SLI-4 interface spec. This memory region
11558 * maps up to 64 rpi context regions.
11562 * ENOMEM - No available memory
11563 * EIO - The mailbox failed to complete successfully.
11566 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
11568 LPFC_MBOXQ_t *mboxq;
11569 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
11572 uint32_t shdr_status, shdr_add_status;
11573 union lpfc_sli4_cfg_shdr *shdr;
11575 /* The port is notified of the header region via a mailbox command. */
11576 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11578 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11579 "2001 Unable to allocate memory for issuing "
11580 "SLI_CONFIG_SPECIAL mailbox command\n");
11584 /* Post all rpi memory regions to the port. */
11585 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
11586 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11587 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11588 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
11589 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
11590 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
11591 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
11592 hdr_tmpl, rpi_page->page_count);
11593 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
11594 rpi_page->start_rpi);
11595 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
11596 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
11597 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11598 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
11599 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11600 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11601 if (rc != MBX_TIMEOUT)
11602 mempool_free(mboxq, phba->mbox_mem_pool);
11603 if (shdr_status || shdr_add_status || rc) {
11604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11605 "2514 POST_RPI_HDR mailbox failed with "
11606 "status x%x add_status x%x, mbx status x%x\n",
11607 shdr_status, shdr_add_status, rc);
11614 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11615 * @phba: pointer to lpfc hba data structure.
11617 * This routine is invoked to post rpi header templates to the
11618 * HBA consistent with the SLI-4 interface spec. This routine
11619 * posts a PAGE_SIZE memory region to the port to hold up to
11620 * PAGE_SIZE modulo 64 rpi context headers.
11623 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
11624 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11627 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
11630 uint16_t max_rpi, rpi_base, rpi_limit;
11631 uint16_t rpi_remaining;
11632 struct lpfc_rpi_hdr *rpi_hdr;
11634 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
11635 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
11636 rpi_limit = phba->sli4_hba.next_rpi;
11639 * The valid rpi range is not guaranteed to be zero-based. Start
11640 * the search at the rpi_base as reported by the port.
11642 spin_lock_irq(&phba->hbalock);
11643 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
11644 if (rpi >= rpi_limit || rpi < rpi_base)
11645 rpi = LPFC_RPI_ALLOC_ERROR;
11647 set_bit(rpi, phba->sli4_hba.rpi_bmask);
11648 phba->sli4_hba.max_cfg_param.rpi_used++;
11649 phba->sli4_hba.rpi_count++;
11653 * Don't try to allocate more rpi header regions if the device limit
11654 * on available rpis max has been exhausted.
11656 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
11657 (phba->sli4_hba.rpi_count >= max_rpi)) {
11658 spin_unlock_irq(&phba->hbalock);
11663 * If the driver is running low on rpi resources, allocate another
11664 * page now. Note that the next_rpi value is used because
11665 * it represents how many are actually in use whereas max_rpi notes
11666 * how many are supported max by the device.
11668 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
11669 phba->sli4_hba.rpi_count;
11670 spin_unlock_irq(&phba->hbalock);
11671 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
11672 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
11674 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11675 "2002 Error Could not grow rpi "
11678 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
11686 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11687 * @phba: pointer to lpfc hba data structure.
11689 * This routine is invoked to release an rpi to the pool of
11690 * available rpis maintained by the driver.
11693 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11695 spin_lock_irq(&phba->hbalock);
11696 clear_bit(rpi, phba->sli4_hba.rpi_bmask);
11697 phba->sli4_hba.rpi_count--;
11698 phba->sli4_hba.max_cfg_param.rpi_used--;
11699 spin_unlock_irq(&phba->hbalock);
11703 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11704 * @phba: pointer to lpfc hba data structure.
11706 * This routine is invoked to remove the memory region that
11707 * provided rpi via a bitmask.
11710 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
11712 kfree(phba->sli4_hba.rpi_bmask);
11716 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
11717 * @phba: pointer to lpfc hba data structure.
11719 * This routine is invoked to remove the memory region that
11720 * provided rpi via a bitmask.
11723 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
11725 LPFC_MBOXQ_t *mboxq;
11726 struct lpfc_hba *phba = ndlp->phba;
11729 /* The port is notified of the header region via a mailbox command. */
11730 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11734 /* Post all rpi memory regions to the port. */
11735 lpfc_resume_rpi(mboxq, ndlp);
11736 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11737 if (rc == MBX_NOT_FINISHED) {
11738 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11739 "2010 Resume RPI Mailbox failed "
11740 "status %d, mbxStatus x%x\n", rc,
11741 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11742 mempool_free(mboxq, phba->mbox_mem_pool);
11749 * lpfc_sli4_init_vpi - Initialize a vpi with the port
11750 * @phba: pointer to lpfc hba data structure.
11751 * @vpi: vpi value to activate with the port.
11753 * This routine is invoked to activate a vpi with the
11754 * port when the host intends to use vports with a
11759 * -Evalue otherwise
11762 lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
11764 LPFC_MBOXQ_t *mboxq;
11766 int retval = MBX_SUCCESS;
11771 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11774 lpfc_init_vpi(phba, mboxq, vpi);
11775 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
11776 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11777 if (rc != MBX_SUCCESS) {
11778 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11779 "2022 INIT VPI Mailbox failed "
11780 "status %d, mbxStatus x%x\n", rc,
11781 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11784 if (rc != MBX_TIMEOUT)
11785 mempool_free(mboxq, phba->mbox_mem_pool);
11791 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
11792 * @phba: pointer to lpfc hba data structure.
11793 * @mboxq: Pointer to mailbox object.
11795 * This routine is invoked to manually add a single FCF record. The caller
11796 * must pass a completely initialized FCF_Record. This routine takes
11797 * care of the nonembedded mailbox operations.
11800 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11803 union lpfc_sli4_cfg_shdr *shdr;
11804 uint32_t shdr_status, shdr_add_status;
11806 virt_addr = mboxq->sge_array->addr[0];
11807 /* The IOCTL status is embedded in the mailbox subheader. */
11808 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
11809 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11810 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11812 if ((shdr_status || shdr_add_status) &&
11813 (shdr_status != STATUS_FCF_IN_USE))
11814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11815 "2558 ADD_FCF_RECORD mailbox failed with "
11816 "status x%x add_status x%x\n",
11817 shdr_status, shdr_add_status);
11819 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11823 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
11824 * @phba: pointer to lpfc hba data structure.
11825 * @fcf_record: pointer to the initialized fcf record to add.
11827 * This routine is invoked to manually add a single FCF record. The caller
11828 * must pass a completely initialized FCF_Record. This routine takes
11829 * care of the nonembedded mailbox operations.
11832 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
11835 LPFC_MBOXQ_t *mboxq;
11838 dma_addr_t phys_addr;
11839 struct lpfc_mbx_sge sge;
11840 uint32_t alloc_len, req_len;
11843 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11846 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
11850 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
11853 /* Allocate DMA memory and set up the non-embedded mailbox command */
11854 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11855 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
11856 req_len, LPFC_SLI4_MBX_NEMBED);
11857 if (alloc_len < req_len) {
11858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11859 "2523 Allocated DMA memory size (x%x) is "
11860 "less than the requested DMA memory "
11861 "size (x%x)\n", alloc_len, req_len);
11862 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11867 * Get the first SGE entry from the non-embedded DMA memory. This
11868 * routine only uses a single SGE.
11870 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11871 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
11872 virt_addr = mboxq->sge_array->addr[0];
11874 * Configure the FCF record for FCFI 0. This is the driver's
11875 * hardcoded default and gets used in nonFIP mode.
11877 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
11878 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
11879 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
11882 * Copy the fcf_index and the FCF Record Data. The data starts after
11883 * the FCoE header plus word10. The data copy needs to be endian
11886 bytep += sizeof(uint32_t);
11887 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
11888 mboxq->vport = phba->pport;
11889 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
11890 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11891 if (rc == MBX_NOT_FINISHED) {
11892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11893 "2515 ADD_FCF_RECORD mailbox failed with "
11894 "status 0x%x\n", rc);
11895 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11904 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
11905 * @phba: pointer to lpfc hba data structure.
11906 * @fcf_record: pointer to the fcf record to write the default data.
11907 * @fcf_index: FCF table entry index.
11909 * This routine is invoked to build the driver's default FCF record. The
11910 * values used are hardcoded. This routine handles memory initialization.
11914 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
11915 struct fcf_record *fcf_record,
11916 uint16_t fcf_index)
11918 memset(fcf_record, 0, sizeof(struct fcf_record));
11919 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
11920 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
11921 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
11922 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
11923 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
11924 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
11925 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
11926 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
11927 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
11928 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
11929 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
11930 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
11931 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
11932 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
11933 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
11934 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
11935 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
11936 /* Set the VLAN bit map */
11937 if (phba->valid_vlan) {
11938 fcf_record->vlan_bitmap[phba->vlan_id / 8]
11939 = 1 << (phba->vlan_id % 8);
11944 * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
11945 * @phba: pointer to lpfc hba data structure.
11946 * @fcf_index: FCF table entry offset.
11948 * This routine is invoked to read up to @fcf_num of FCF record from the
11949 * device starting with the given @fcf_index.
11952 lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
11955 LPFC_MBOXQ_t *mboxq;
11957 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
11958 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11960 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11961 "2000 Failed to allocate mbox for "
11966 /* Construct the read FCF record mailbox command */
11967 rc = lpfc_sli4_mbx_read_fcf_record(phba, mboxq, fcf_index);
11972 /* Issue the mailbox command asynchronously */
11973 mboxq->vport = phba->pport;
11974 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
11975 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11976 if (rc == MBX_NOT_FINISHED)
11979 spin_lock_irq(&phba->hbalock);
11980 phba->hba_flag |= FCF_DISC_INPROGRESS;
11981 spin_unlock_irq(&phba->hbalock);
11987 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11988 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
11989 spin_lock_irq(&phba->hbalock);
11990 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
11991 spin_unlock_irq(&phba->hbalock);
11997 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
11998 * @phba: pointer to lpfc hba data structure.
12000 * This routine is the completion routine for the rediscover FCF table mailbox
12001 * command. If the mailbox command returned failure, it will try to stop the
12002 * FCF rediscover wait timer.
12005 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
12007 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12008 uint32_t shdr_status, shdr_add_status;
12010 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12012 shdr_status = bf_get(lpfc_mbox_hdr_status,
12013 &redisc_fcf->header.cfg_shdr.response);
12014 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
12015 &redisc_fcf->header.cfg_shdr.response);
12016 if (shdr_status || shdr_add_status) {
12017 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12018 "2746 Requesting for FCF rediscovery failed "
12019 "status x%x add_status x%x\n",
12020 shdr_status, shdr_add_status);
12022 * Request failed, last resort to re-try current
12023 * registered FCF entry
12025 lpfc_retry_pport_discovery(phba);
12028 * Start FCF rediscovery wait timer for pending FCF
12029 * before rescan FCF record table.
12031 lpfc_fcf_redisc_wait_start_timer(phba);
12033 mempool_free(mbox, phba->mbox_mem_pool);
12037 * lpfc_sli4_redisc_all_fcf - Request to rediscover entire FCF table by port.
12038 * @phba: pointer to lpfc hba data structure.
12040 * This routine is invoked to request for rediscovery of the entire FCF table
12044 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
12046 LPFC_MBOXQ_t *mbox;
12047 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12050 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12052 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12053 "2745 Failed to allocate mbox for "
12054 "requesting FCF rediscover.\n");
12058 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
12059 sizeof(struct lpfc_sli4_cfg_mhdr));
12060 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12061 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
12062 length, LPFC_SLI4_MBX_EMBED);
12064 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12065 /* Set count to 0 for invalidating the entire FCF database */
12066 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
12068 /* Issue the mailbox command asynchronously */
12069 mbox->vport = phba->pport;
12070 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
12071 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
12073 if (rc == MBX_NOT_FINISHED) {
12074 mempool_free(mbox, phba->mbox_mem_pool);
12081 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12082 * @phba: pointer to lpfc hba data structure.
12084 * This function read region 23 and parse TLV for port status to
12085 * decide if the user disaled the port. If the TLV indicates the
12086 * port is disabled, the hba_flag is set accordingly.
12089 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
12091 LPFC_MBOXQ_t *pmb = NULL;
12093 uint8_t *rgn23_data = NULL;
12094 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
12097 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12100 "2600 lpfc_sli_read_serdes_param failed to"
12101 " allocate mailbox memory\n");
12106 /* Get adapter Region 23 data */
12107 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
12112 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
12113 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12115 if (rc != MBX_SUCCESS) {
12116 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12117 "2601 lpfc_sli_read_link_ste failed to"
12118 " read config region 23 rc 0x%x Status 0x%x\n",
12119 rc, mb->mbxStatus);
12120 mb->un.varDmp.word_cnt = 0;
12123 * dump mem may return a zero when finished or we got a
12124 * mailbox error, either way we are done.
12126 if (mb->un.varDmp.word_cnt == 0)
12128 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
12129 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
12131 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
12132 rgn23_data + offset,
12133 mb->un.varDmp.word_cnt);
12134 offset += mb->un.varDmp.word_cnt;
12135 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
12137 data_size = offset;
12143 /* Check the region signature first */
12144 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
12145 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12146 "2619 Config region 23 has bad signature\n");
12151 /* Check the data structure version */
12152 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
12153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12154 "2620 Config region 23 has bad version\n");
12159 /* Parse TLV entries in the region */
12160 while (offset < data_size) {
12161 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
12164 * If the TLV is not driver specific TLV or driver id is
12165 * not linux driver id, skip the record.
12167 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
12168 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
12169 (rgn23_data[offset + 3] != 0)) {
12170 offset += rgn23_data[offset + 1] * 4 + 4;
12174 /* Driver found a driver specific TLV in the config region */
12175 sub_tlv_len = rgn23_data[offset + 1] * 4;
12180 * Search for configured port state sub-TLV.
12182 while ((offset < data_size) &&
12183 (tlv_offset < sub_tlv_len)) {
12184 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
12189 if (rgn23_data[offset] != PORT_STE_TYPE) {
12190 offset += rgn23_data[offset + 1] * 4 + 4;
12191 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
12195 /* This HBA contains PORT_STE configured */
12196 if (!rgn23_data[offset + 2])
12197 phba->hba_flag |= LINK_DISABLED;
12204 mempool_free(pmb, phba->mbox_mem_pool);
12210 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12211 * @vport: pointer to vport data structure.
12213 * This function iterate through the mailboxq and clean up all REG_LOGIN
12214 * and REG_VPI mailbox commands associated with the vport. This function
12215 * is called when driver want to restart discovery of the vport due to
12216 * a Clear Virtual Link event.
12219 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
12221 struct lpfc_hba *phba = vport->phba;
12222 LPFC_MBOXQ_t *mb, *nextmb;
12223 struct lpfc_dmabuf *mp;
12225 spin_lock_irq(&phba->hbalock);
12226 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
12227 if (mb->vport != vport)
12230 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
12231 (mb->u.mb.mbxCommand != MBX_REG_VPI))
12234 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
12235 mp = (struct lpfc_dmabuf *) (mb->context1);
12237 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
12241 list_del(&mb->list);
12242 mempool_free(mb, phba->mbox_mem_pool);
12244 mb = phba->sli.mbox_active;
12245 if (mb && (mb->vport == vport)) {
12246 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
12247 (mb->u.mb.mbxCommand == MBX_REG_VPI))
12248 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12250 spin_unlock_irq(&phba->hbalock);