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 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3095 "2751 Adapter failed to restart, "
3096 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3098 readl(phba->MBslimaddr + 0xa8),
3099 readl(phba->MBslimaddr + 0xac));
3100 phba->link_state = LPFC_HBA_ERROR;
3108 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3109 * @phba: Pointer to HBA context object.
3110 * @mask: Bit mask to be checked.
3112 * This function checks the host status register to check if HBA is
3113 * ready. This function will wait in a loop for the HBA to be ready
3114 * If the HBA is not ready , the function will will reset the HBA PCI
3115 * function again. The function returns 1 when HBA fail to be ready
3116 * otherwise returns zero.
3119 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3124 /* Read the HBA Host Status Register */
3125 status = lpfc_sli4_post_status_check(phba);
3128 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3129 lpfc_sli_brdrestart(phba);
3130 status = lpfc_sli4_post_status_check(phba);
3133 /* Check to see if any errors occurred during init */
3135 phba->link_state = LPFC_HBA_ERROR;
3138 phba->sli4_hba.intr_enable = 0;
3144 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3145 * @phba: Pointer to HBA context object.
3146 * @mask: Bit mask to be checked.
3148 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3149 * from the API jump table function pointer from the lpfc_hba struct.
3152 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3154 return phba->lpfc_sli_brdready(phba, mask);
3157 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3160 * lpfc_reset_barrier - Make HBA ready for HBA reset
3161 * @phba: Pointer to HBA context object.
3163 * This function is called before resetting an HBA. This
3164 * function requests HBA to quiesce DMAs before a reset.
3166 void lpfc_reset_barrier(struct lpfc_hba *phba)
3168 uint32_t __iomem *resp_buf;
3169 uint32_t __iomem *mbox_buf;
3170 volatile uint32_t mbox;
3175 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3176 if (hdrtype != 0x80 ||
3177 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3178 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3182 * Tell the other part of the chip to suspend temporarily all
3185 resp_buf = phba->MBslimaddr;
3187 /* Disable the error attention */
3188 hc_copy = readl(phba->HCregaddr);
3189 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3190 readl(phba->HCregaddr); /* flush */
3191 phba->link_flag |= LS_IGNORE_ERATT;
3193 if (readl(phba->HAregaddr) & HA_ERATT) {
3194 /* Clear Chip error bit */
3195 writel(HA_ERATT, phba->HAregaddr);
3196 phba->pport->stopped = 1;
3200 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3201 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3203 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3204 mbox_buf = phba->MBslimaddr;
3205 writel(mbox, mbox_buf);
3208 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3211 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
3212 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3213 phba->pport->stopped)
3219 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3220 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3225 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3228 if (readl(phba->HAregaddr) & HA_ERATT) {
3229 writel(HA_ERATT, phba->HAregaddr);
3230 phba->pport->stopped = 1;
3234 phba->link_flag &= ~LS_IGNORE_ERATT;
3235 writel(hc_copy, phba->HCregaddr);
3236 readl(phba->HCregaddr); /* flush */
3240 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3241 * @phba: Pointer to HBA context object.
3243 * This function issues a kill_board mailbox command and waits for
3244 * the error attention interrupt. This function is called for stopping
3245 * the firmware processing. The caller is not required to hold any
3246 * locks. This function calls lpfc_hba_down_post function to free
3247 * any pending commands after the kill. The function will return 1 when it
3248 * fails to kill the board else will return 0.
3251 lpfc_sli_brdkill(struct lpfc_hba *phba)
3253 struct lpfc_sli *psli;
3263 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3264 "0329 Kill HBA Data: x%x x%x\n",
3265 phba->pport->port_state, psli->sli_flag);
3267 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3271 /* Disable the error attention */
3272 spin_lock_irq(&phba->hbalock);
3273 status = readl(phba->HCregaddr);
3274 status &= ~HC_ERINT_ENA;
3275 writel(status, phba->HCregaddr);
3276 readl(phba->HCregaddr); /* flush */
3277 phba->link_flag |= LS_IGNORE_ERATT;
3278 spin_unlock_irq(&phba->hbalock);
3280 lpfc_kill_board(phba, pmb);
3281 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3282 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3284 if (retval != MBX_SUCCESS) {
3285 if (retval != MBX_BUSY)
3286 mempool_free(pmb, phba->mbox_mem_pool);
3287 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3288 "2752 KILL_BOARD command failed retval %d\n",
3290 spin_lock_irq(&phba->hbalock);
3291 phba->link_flag &= ~LS_IGNORE_ERATT;
3292 spin_unlock_irq(&phba->hbalock);
3296 spin_lock_irq(&phba->hbalock);
3297 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3298 spin_unlock_irq(&phba->hbalock);
3300 mempool_free(pmb, phba->mbox_mem_pool);
3302 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3303 * attention every 100ms for 3 seconds. If we don't get ERATT after
3304 * 3 seconds we still set HBA_ERROR state because the status of the
3305 * board is now undefined.
3307 ha_copy = readl(phba->HAregaddr);
3309 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3311 ha_copy = readl(phba->HAregaddr);
3314 del_timer_sync(&psli->mbox_tmo);
3315 if (ha_copy & HA_ERATT) {
3316 writel(HA_ERATT, phba->HAregaddr);
3317 phba->pport->stopped = 1;
3319 spin_lock_irq(&phba->hbalock);
3320 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3321 psli->mbox_active = NULL;
3322 phba->link_flag &= ~LS_IGNORE_ERATT;
3323 spin_unlock_irq(&phba->hbalock);
3325 lpfc_hba_down_post(phba);
3326 phba->link_state = LPFC_HBA_ERROR;
3328 return ha_copy & HA_ERATT ? 0 : 1;
3332 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3333 * @phba: Pointer to HBA context object.
3335 * This function resets the HBA by writing HC_INITFF to the control
3336 * register. After the HBA resets, this function resets all the iocb ring
3337 * indices. This function disables PCI layer parity checking during
3339 * This function returns 0 always.
3340 * The caller is not required to hold any locks.
3343 lpfc_sli_brdreset(struct lpfc_hba *phba)
3345 struct lpfc_sli *psli;
3346 struct lpfc_sli_ring *pring;
3353 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3354 "0325 Reset HBA Data: x%x x%x\n",
3355 phba->pport->port_state, psli->sli_flag);
3357 /* perform board reset */
3358 phba->fc_eventTag = 0;
3359 phba->link_events = 0;
3360 phba->pport->fc_myDID = 0;
3361 phba->pport->fc_prevDID = 0;
3363 /* Turn off parity checking and serr during the physical reset */
3364 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3365 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3367 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3369 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3371 /* Now toggle INITFF bit in the Host Control Register */
3372 writel(HC_INITFF, phba->HCregaddr);
3374 readl(phba->HCregaddr); /* flush */
3375 writel(0, phba->HCregaddr);
3376 readl(phba->HCregaddr); /* flush */
3378 /* Restore PCI cmd register */
3379 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3381 /* Initialize relevant SLI info */
3382 for (i = 0; i < psli->num_rings; i++) {
3383 pring = &psli->ring[i];
3386 pring->next_cmdidx = 0;
3387 pring->local_getidx = 0;
3389 pring->missbufcnt = 0;
3392 phba->link_state = LPFC_WARM_START;
3397 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3398 * @phba: Pointer to HBA context object.
3400 * This function resets a SLI4 HBA. This function disables PCI layer parity
3401 * checking during resets the device. The caller is not required to hold
3404 * This function returns 0 always.
3407 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3409 struct lpfc_sli *psli = &phba->sli;
3414 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3415 "0295 Reset HBA Data: x%x x%x\n",
3416 phba->pport->port_state, psli->sli_flag);
3418 /* perform board reset */
3419 phba->fc_eventTag = 0;
3420 phba->link_events = 0;
3421 phba->pport->fc_myDID = 0;
3422 phba->pport->fc_prevDID = 0;
3424 /* Turn off parity checking and serr during the physical reset */
3425 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3426 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3428 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3430 spin_lock_irq(&phba->hbalock);
3431 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3432 phba->fcf.fcf_flag = 0;
3433 /* Clean up the child queue list for the CQs */
3434 list_del_init(&phba->sli4_hba.mbx_wq->list);
3435 list_del_init(&phba->sli4_hba.els_wq->list);
3436 list_del_init(&phba->sli4_hba.hdr_rq->list);
3437 list_del_init(&phba->sli4_hba.dat_rq->list);
3438 list_del_init(&phba->sli4_hba.mbx_cq->list);
3439 list_del_init(&phba->sli4_hba.els_cq->list);
3440 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3441 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3442 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3443 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3444 spin_unlock_irq(&phba->hbalock);
3446 /* Now physically reset the device */
3447 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3448 "0389 Performing PCI function reset!\n");
3449 /* Perform FCoE PCI function reset */
3450 lpfc_pci_function_reset(phba);
3456 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3457 * @phba: Pointer to HBA context object.
3459 * This function is called in the SLI initialization code path to
3460 * restart the HBA. The caller is not required to hold any lock.
3461 * This function writes MBX_RESTART mailbox command to the SLIM and
3462 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3463 * function to free any pending commands. The function enables
3464 * POST only during the first initialization. The function returns zero.
3465 * The function does not guarantee completion of MBX_RESTART mailbox
3466 * command before the return of this function.
3469 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
3472 struct lpfc_sli *psli;
3473 volatile uint32_t word0;
3474 void __iomem *to_slim;
3475 uint32_t hba_aer_enabled;
3477 spin_lock_irq(&phba->hbalock);
3479 /* Take PCIe device Advanced Error Reporting (AER) state */
3480 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3485 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3486 "0337 Restart HBA Data: x%x x%x\n",
3487 phba->pport->port_state, psli->sli_flag);
3490 mb = (MAILBOX_t *) &word0;
3491 mb->mbxCommand = MBX_RESTART;
3494 lpfc_reset_barrier(phba);
3496 to_slim = phba->MBslimaddr;
3497 writel(*(uint32_t *) mb, to_slim);
3498 readl(to_slim); /* flush */
3500 /* Only skip post after fc_ffinit is completed */
3501 if (phba->pport->port_state)
3502 word0 = 1; /* This is really setting up word1 */
3504 word0 = 0; /* This is really setting up word1 */
3505 to_slim = phba->MBslimaddr + sizeof (uint32_t);
3506 writel(*(uint32_t *) mb, to_slim);
3507 readl(to_slim); /* flush */
3509 lpfc_sli_brdreset(phba);
3510 phba->pport->stopped = 0;
3511 phba->link_state = LPFC_INIT_START;
3513 spin_unlock_irq(&phba->hbalock);
3515 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3516 psli->stats_start = get_seconds();
3518 /* Give the INITFF and Post time to settle. */
3521 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3522 if (hba_aer_enabled)
3523 pci_disable_pcie_error_reporting(phba->pcidev);
3525 lpfc_hba_down_post(phba);
3531 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3532 * @phba: Pointer to HBA context object.
3534 * This function is called in the SLI initialization code path to restart
3535 * a SLI4 HBA. The caller is not required to hold any lock.
3536 * At the end of the function, it calls lpfc_hba_down_post function to
3537 * free any pending commands.
3540 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3542 struct lpfc_sli *psli = &phba->sli;
3546 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3547 "0296 Restart HBA Data: x%x x%x\n",
3548 phba->pport->port_state, psli->sli_flag);
3550 lpfc_sli4_brdreset(phba);
3552 spin_lock_irq(&phba->hbalock);
3553 phba->pport->stopped = 0;
3554 phba->link_state = LPFC_INIT_START;
3556 spin_unlock_irq(&phba->hbalock);
3558 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3559 psli->stats_start = get_seconds();
3561 lpfc_hba_down_post(phba);
3567 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3568 * @phba: Pointer to HBA context object.
3570 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3571 * API jump table function pointer from the lpfc_hba struct.
3574 lpfc_sli_brdrestart(struct lpfc_hba *phba)
3576 return phba->lpfc_sli_brdrestart(phba);
3580 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
3581 * @phba: Pointer to HBA context object.
3583 * This function is called after a HBA restart to wait for successful
3584 * restart of the HBA. Successful restart of the HBA is indicated by
3585 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3586 * iteration, the function will restart the HBA again. The function returns
3587 * zero if HBA successfully restarted else returns negative error code.
3590 lpfc_sli_chipset_init(struct lpfc_hba *phba)
3592 uint32_t status, i = 0;
3594 /* Read the HBA Host Status Register */
3595 status = readl(phba->HSregaddr);
3597 /* Check status register to see what current state is */
3599 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
3601 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3602 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3606 /* Adapter failed to init, timeout, status reg
3608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3609 "0436 Adapter failed to init, "
3610 "timeout, status reg x%x, "
3611 "FW Data: A8 x%x AC x%x\n", status,
3612 readl(phba->MBslimaddr + 0xa8),
3613 readl(phba->MBslimaddr + 0xac));
3614 phba->link_state = LPFC_HBA_ERROR;
3618 /* Check to see if any errors occurred during init */
3619 if (status & HS_FFERM) {
3620 /* ERROR: During chipset initialization */
3621 /* Adapter failed to init, chipset, status reg
3623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3624 "0437 Adapter failed to init, "
3625 "chipset, status reg x%x, "
3626 "FW Data: A8 x%x AC x%x\n", status,
3627 readl(phba->MBslimaddr + 0xa8),
3628 readl(phba->MBslimaddr + 0xac));
3629 phba->link_state = LPFC_HBA_ERROR;
3635 } else if (i <= 10) {
3643 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3644 lpfc_sli_brdrestart(phba);
3646 /* Read the HBA Host Status Register */
3647 status = readl(phba->HSregaddr);
3650 /* Check to see if any errors occurred during init */
3651 if (status & HS_FFERM) {
3652 /* ERROR: During chipset initialization */
3653 /* Adapter failed to init, chipset, status reg <status> */
3654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3655 "0438 Adapter failed to init, chipset, "
3657 "FW Data: A8 x%x AC x%x\n", status,
3658 readl(phba->MBslimaddr + 0xa8),
3659 readl(phba->MBslimaddr + 0xac));
3660 phba->link_state = LPFC_HBA_ERROR;
3664 /* Clear all interrupt enable conditions */
3665 writel(0, phba->HCregaddr);
3666 readl(phba->HCregaddr); /* flush */
3668 /* setup host attn register */
3669 writel(0xffffffff, phba->HAregaddr);
3670 readl(phba->HAregaddr); /* flush */
3675 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
3677 * This function calculates and returns the number of HBQs required to be
3681 lpfc_sli_hbq_count(void)
3683 return ARRAY_SIZE(lpfc_hbq_defs);
3687 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
3689 * This function adds the number of hbq entries in every HBQ to get
3690 * the total number of hbq entries required for the HBA and returns
3694 lpfc_sli_hbq_entry_count(void)
3696 int hbq_count = lpfc_sli_hbq_count();
3700 for (i = 0; i < hbq_count; ++i)
3701 count += lpfc_hbq_defs[i]->entry_count;
3706 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
3708 * This function calculates amount of memory required for all hbq entries
3709 * to be configured and returns the total memory required.
3712 lpfc_sli_hbq_size(void)
3714 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
3718 * lpfc_sli_hbq_setup - configure and initialize HBQs
3719 * @phba: Pointer to HBA context object.
3721 * This function is called during the SLI initialization to configure
3722 * all the HBQs and post buffers to the HBQ. The caller is not
3723 * required to hold any locks. This function will return zero if successful
3724 * else it will return negative error code.
3727 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
3729 int hbq_count = lpfc_sli_hbq_count();
3733 uint32_t hbq_entry_index;
3735 /* Get a Mailbox buffer to setup mailbox
3736 * commands for HBA initialization
3738 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3745 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3746 phba->link_state = LPFC_INIT_MBX_CMDS;
3747 phba->hbq_in_use = 1;
3749 hbq_entry_index = 0;
3750 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
3751 phba->hbqs[hbqno].next_hbqPutIdx = 0;
3752 phba->hbqs[hbqno].hbqPutIdx = 0;
3753 phba->hbqs[hbqno].local_hbqGetIdx = 0;
3754 phba->hbqs[hbqno].entry_count =
3755 lpfc_hbq_defs[hbqno]->entry_count;
3756 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
3757 hbq_entry_index, pmb);
3758 hbq_entry_index += phba->hbqs[hbqno].entry_count;
3760 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
3761 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3762 mbxStatus <status>, ring <num> */
3764 lpfc_printf_log(phba, KERN_ERR,
3765 LOG_SLI | LOG_VPORT,
3766 "1805 Adapter failed to init. "
3767 "Data: x%x x%x x%x\n",
3769 pmbox->mbxStatus, hbqno);
3771 phba->link_state = LPFC_HBA_ERROR;
3772 mempool_free(pmb, phba->mbox_mem_pool);
3776 phba->hbq_count = hbq_count;
3778 mempool_free(pmb, phba->mbox_mem_pool);
3780 /* Initially populate or replenish the HBQs */
3781 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
3782 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
3787 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3788 * @phba: Pointer to HBA context object.
3790 * This function is called during the SLI initialization to configure
3791 * all the HBQs and post buffers to the HBQ. The caller is not
3792 * required to hold any locks. This function will return zero if successful
3793 * else it will return negative error code.
3796 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
3798 phba->hbq_in_use = 1;
3799 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
3800 phba->hbq_count = 1;
3801 /* Initially populate or replenish the HBQs */
3802 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
3807 * lpfc_sli_config_port - Issue config port mailbox command
3808 * @phba: Pointer to HBA context object.
3809 * @sli_mode: sli mode - 2/3
3811 * This function is called by the sli intialization code path
3812 * to issue config_port mailbox command. This function restarts the
3813 * HBA firmware and issues a config_port mailbox command to configure
3814 * the SLI interface in the sli mode specified by sli_mode
3815 * variable. The caller is not required to hold any locks.
3816 * The function returns 0 if successful, else returns negative error
3820 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
3823 uint32_t resetcount = 0, rc = 0, done = 0;
3825 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3827 phba->link_state = LPFC_HBA_ERROR;
3831 phba->sli_rev = sli_mode;
3832 while (resetcount < 2 && !done) {
3833 spin_lock_irq(&phba->hbalock);
3834 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
3835 spin_unlock_irq(&phba->hbalock);
3836 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3837 lpfc_sli_brdrestart(phba);
3838 rc = lpfc_sli_chipset_init(phba);
3842 spin_lock_irq(&phba->hbalock);
3843 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3844 spin_unlock_irq(&phba->hbalock);
3847 /* Call pre CONFIG_PORT mailbox command initialization. A
3848 * value of 0 means the call was successful. Any other
3849 * nonzero value is a failure, but if ERESTART is returned,
3850 * the driver may reset the HBA and try again.
3852 rc = lpfc_config_port_prep(phba);
3853 if (rc == -ERESTART) {
3854 phba->link_state = LPFC_LINK_UNKNOWN;
3858 phba->link_state = LPFC_INIT_MBX_CMDS;
3859 lpfc_config_port(phba, pmb);
3860 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
3861 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3862 LPFC_SLI3_HBQ_ENABLED |
3863 LPFC_SLI3_CRP_ENABLED |
3864 LPFC_SLI3_INB_ENABLED |
3865 LPFC_SLI3_BG_ENABLED);
3866 if (rc != MBX_SUCCESS) {
3867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3868 "0442 Adapter failed to init, mbxCmd x%x "
3869 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
3870 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
3871 spin_lock_irq(&phba->hbalock);
3872 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
3873 spin_unlock_irq(&phba->hbalock);
3876 /* Allow asynchronous mailbox command to go through */
3877 spin_lock_irq(&phba->hbalock);
3878 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
3879 spin_unlock_irq(&phba->hbalock);
3885 goto do_prep_failed;
3887 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
3888 if (!pmb->u.mb.un.varCfgPort.cMA) {
3890 goto do_prep_failed;
3892 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
3893 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3894 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
3895 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
3896 phba->max_vpi : phba->max_vports;
3900 if (pmb->u.mb.un.varCfgPort.gdss)
3901 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
3902 if (pmb->u.mb.un.varCfgPort.gerbm)
3903 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
3904 if (pmb->u.mb.un.varCfgPort.gcrp)
3905 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
3906 if (pmb->u.mb.un.varCfgPort.ginb) {
3907 phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
3908 phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
3909 phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
3910 phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
3911 phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
3912 phba->inb_last_counter =
3913 phba->mbox->us.s3_inb_pgp.counter;
3915 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
3916 phba->port_gp = phba->mbox->us.s3_pgp.port;
3917 phba->inb_ha_copy = NULL;
3918 phba->inb_counter = NULL;
3921 if (phba->cfg_enable_bg) {
3922 if (pmb->u.mb.un.varCfgPort.gbg)
3923 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3925 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3926 "0443 Adapter did not grant "
3930 phba->hbq_get = NULL;
3931 phba->port_gp = phba->mbox->us.s2.port;
3932 phba->inb_ha_copy = NULL;
3933 phba->inb_counter = NULL;
3937 mempool_free(pmb, phba->mbox_mem_pool);
3943 * lpfc_sli_hba_setup - SLI intialization function
3944 * @phba: Pointer to HBA context object.
3946 * This function is the main SLI intialization function. This function
3947 * is called by the HBA intialization code, HBA reset code and HBA
3948 * error attention handler code. Caller is not required to hold any
3949 * locks. This function issues config_port mailbox command to configure
3950 * the SLI, setup iocb rings and HBQ rings. In the end the function
3951 * calls the config_port_post function to issue init_link mailbox
3952 * command and to start the discovery. The function will return zero
3953 * if successful, else it will return negative error code.
3956 lpfc_sli_hba_setup(struct lpfc_hba *phba)
3961 switch (lpfc_sli_mode) {
3963 if (phba->cfg_enable_npiv) {
3964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3965 "1824 NPIV enabled: Override lpfc_sli_mode "
3966 "parameter (%d) to auto (0).\n",
3976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3977 "1819 Unrecognized lpfc_sli_mode "
3978 "parameter: %d.\n", lpfc_sli_mode);
3983 rc = lpfc_sli_config_port(phba, mode);
3985 if (rc && lpfc_sli_mode == 3)
3986 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3987 "1820 Unable to select SLI-3. "
3988 "Not supported by adapter.\n");
3989 if (rc && mode != 2)
3990 rc = lpfc_sli_config_port(phba, 2);
3992 goto lpfc_sli_hba_setup_error;
3994 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
3995 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
3996 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3998 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3999 "2709 This device supports "
4000 "Advanced Error Reporting (AER)\n");
4001 spin_lock_irq(&phba->hbalock);
4002 phba->hba_flag |= HBA_AER_ENABLED;
4003 spin_unlock_irq(&phba->hbalock);
4005 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4006 "2708 This device does not support "
4007 "Advanced Error Reporting (AER)\n");
4008 phba->cfg_aer_support = 0;
4012 if (phba->sli_rev == 3) {
4013 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4014 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4016 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4017 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4018 phba->sli3_options = 0;
4021 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4022 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4023 phba->sli_rev, phba->max_vpi);
4024 rc = lpfc_sli_ring_map(phba);
4027 goto lpfc_sli_hba_setup_error;
4030 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4031 rc = lpfc_sli_hbq_setup(phba);
4033 goto lpfc_sli_hba_setup_error;
4035 spin_lock_irq(&phba->hbalock);
4036 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4037 spin_unlock_irq(&phba->hbalock);
4039 rc = lpfc_config_port_post(phba);
4041 goto lpfc_sli_hba_setup_error;
4045 lpfc_sli_hba_setup_error:
4046 phba->link_state = LPFC_HBA_ERROR;
4047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4048 "0445 Firmware initialization failed\n");
4053 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4054 * @phba: Pointer to HBA context object.
4055 * @mboxq: mailbox pointer.
4056 * This function issue a dump mailbox command to read config region
4057 * 23 and parse the records in the region and populate driver
4061 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
4062 LPFC_MBOXQ_t *mboxq)
4064 struct lpfc_dmabuf *mp;
4065 struct lpfc_mqe *mqe;
4066 uint32_t data_length;
4069 /* Program the default value of vlan_id and fc_map */
4070 phba->valid_vlan = 0;
4071 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4072 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4073 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4075 mqe = &mboxq->u.mqe;
4076 if (lpfc_dump_fcoe_param(phba, mboxq))
4079 mp = (struct lpfc_dmabuf *) mboxq->context1;
4080 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4082 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4083 "(%d):2571 Mailbox cmd x%x Status x%x "
4084 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4085 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4086 "CQ: x%x x%x x%x x%x\n",
4087 mboxq->vport ? mboxq->vport->vpi : 0,
4088 bf_get(lpfc_mqe_command, mqe),
4089 bf_get(lpfc_mqe_status, mqe),
4090 mqe->un.mb_words[0], mqe->un.mb_words[1],
4091 mqe->un.mb_words[2], mqe->un.mb_words[3],
4092 mqe->un.mb_words[4], mqe->un.mb_words[5],
4093 mqe->un.mb_words[6], mqe->un.mb_words[7],
4094 mqe->un.mb_words[8], mqe->un.mb_words[9],
4095 mqe->un.mb_words[10], mqe->un.mb_words[11],
4096 mqe->un.mb_words[12], mqe->un.mb_words[13],
4097 mqe->un.mb_words[14], mqe->un.mb_words[15],
4098 mqe->un.mb_words[16], mqe->un.mb_words[50],
4100 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4101 mboxq->mcqe.trailer);
4104 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4108 data_length = mqe->un.mb_words[5];
4109 if (data_length > DMP_RGN23_SIZE) {
4110 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4115 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4116 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4122 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4123 * @phba: pointer to lpfc hba data structure.
4124 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4125 * @vpd: pointer to the memory to hold resulting port vpd data.
4126 * @vpd_size: On input, the number of bytes allocated to @vpd.
4127 * On output, the number of data bytes in @vpd.
4129 * This routine executes a READ_REV SLI4 mailbox command. In
4130 * addition, this routine gets the port vpd data.
4134 * ENOMEM - could not allocated memory.
4137 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4138 uint8_t *vpd, uint32_t *vpd_size)
4142 struct lpfc_dmabuf *dmabuf;
4143 struct lpfc_mqe *mqe;
4145 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4150 * Get a DMA buffer for the vpd data resulting from the READ_REV
4153 dma_size = *vpd_size;
4154 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4158 if (!dmabuf->virt) {
4162 memset(dmabuf->virt, 0, dma_size);
4165 * The SLI4 implementation of READ_REV conflicts at word1,
4166 * bits 31:16 and SLI4 adds vpd functionality not present
4167 * in SLI3. This code corrects the conflicts.
4169 lpfc_read_rev(phba, mboxq);
4170 mqe = &mboxq->u.mqe;
4171 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4172 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4173 mqe->un.read_rev.word1 &= 0x0000FFFF;
4174 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4175 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4177 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4179 dma_free_coherent(&phba->pcidev->dev, dma_size,
4180 dmabuf->virt, dmabuf->phys);
4186 * The available vpd length cannot be bigger than the
4187 * DMA buffer passed to the port. Catch the less than
4188 * case and update the caller's size.
4190 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4191 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4193 lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size);
4194 dma_free_coherent(&phba->pcidev->dev, dma_size,
4195 dmabuf->virt, dmabuf->phys);
4201 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4202 * @phba: pointer to lpfc hba data structure.
4204 * This routine is called to explicitly arm the SLI4 device's completion and
4208 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4212 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4213 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4214 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4215 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4217 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4218 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4219 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4224 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4225 * @phba: Pointer to HBA context object.
4227 * This function is the main SLI4 device intialization PCI function. This
4228 * function is called by the HBA intialization code, HBA reset code and
4229 * HBA error attention handler code. Caller is not required to hold any
4233 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4236 LPFC_MBOXQ_t *mboxq;
4237 struct lpfc_mqe *mqe;
4240 uint32_t ftr_rsp = 0;
4241 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4242 struct lpfc_vport *vport = phba->pport;
4243 struct lpfc_dmabuf *mp;
4245 /* Perform a PCI function reset to start from clean */
4246 rc = lpfc_pci_function_reset(phba);
4250 /* Check the HBA Host Status Register for readyness */
4251 rc = lpfc_sli4_post_status_check(phba);
4255 spin_lock_irq(&phba->hbalock);
4256 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4257 spin_unlock_irq(&phba->hbalock);
4261 * Allocate a single mailbox container for initializing the
4264 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4269 * Continue initialization with default values even if driver failed
4270 * to read FCoE param config regions
4272 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4273 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4274 "2570 Failed to read FCoE parameters\n");
4276 /* Issue READ_REV to collect vpd and FW information. */
4277 vpd_size = PAGE_SIZE;
4278 vpd = kzalloc(vpd_size, GFP_KERNEL);
4284 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
4288 mqe = &mboxq->u.mqe;
4289 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4290 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
4291 phba->hba_flag |= HBA_FCOE_SUPPORT;
4293 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
4295 phba->hba_flag |= HBA_FIP_SUPPORT;
4297 phba->hba_flag &= ~HBA_FIP_SUPPORT;
4299 if (phba->sli_rev != LPFC_SLI_REV4 ||
4300 !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
4301 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4302 "0376 READ_REV Error. SLI Level %d "
4303 "FCoE enabled %d\n",
4304 phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
4309 * Evaluate the read rev and vpd data. Populate the driver
4310 * state with the results. If this routine fails, the failure
4311 * is not fatal as the driver will use generic values.
4313 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4314 if (unlikely(!rc)) {
4315 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4316 "0377 Error %d parsing vpd. "
4317 "Using defaults.\n", rc);
4321 /* Save information as VPD data */
4322 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4323 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4324 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4325 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4327 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4329 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4331 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4333 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4334 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4335 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4336 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4337 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4338 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4339 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4340 "(%d):0380 READ_REV Status x%x "
4341 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4342 mboxq->vport ? mboxq->vport->vpi : 0,
4343 bf_get(lpfc_mqe_status, mqe),
4344 phba->vpd.rev.opFwName,
4345 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4346 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
4349 * Discover the port's supported feature set and match it against the
4352 lpfc_request_features(phba, mboxq);
4353 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4360 * The port must support FCP initiator mode as this is the
4361 * only mode running in the host.
4363 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4364 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4365 "0378 No support for fcpi mode.\n");
4370 * If the port cannot support the host's requested features
4371 * then turn off the global config parameters to disable the
4372 * feature in the driver. This is not a fatal error.
4374 if ((phba->cfg_enable_bg) &&
4375 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4378 if (phba->max_vpi && phba->cfg_enable_npiv &&
4379 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4383 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4384 "0379 Feature Mismatch Data: x%08x %08x "
4385 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4386 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4387 phba->cfg_enable_npiv, phba->max_vpi);
4388 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4389 phba->cfg_enable_bg = 0;
4390 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4391 phba->cfg_enable_npiv = 0;
4394 /* These SLI3 features are assumed in SLI4 */
4395 spin_lock_irq(&phba->hbalock);
4396 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4397 spin_unlock_irq(&phba->hbalock);
4399 /* Read the port's service parameters. */
4400 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
4402 phba->link_state = LPFC_HBA_ERROR;
4407 mboxq->vport = vport;
4408 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4409 mp = (struct lpfc_dmabuf *) mboxq->context1;
4410 if (rc == MBX_SUCCESS) {
4411 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4416 * This memory was allocated by the lpfc_read_sparam routine. Release
4417 * it to the mbuf pool.
4419 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4421 mboxq->context1 = NULL;
4423 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4424 "0382 READ_SPARAM command failed "
4425 "status %d, mbxStatus x%x\n",
4426 rc, bf_get(lpfc_mqe_status, mqe));
4427 phba->link_state = LPFC_HBA_ERROR;
4432 if (phba->cfg_soft_wwnn)
4433 u64_to_wwn(phba->cfg_soft_wwnn,
4434 vport->fc_sparam.nodeName.u.wwn);
4435 if (phba->cfg_soft_wwpn)
4436 u64_to_wwn(phba->cfg_soft_wwpn,
4437 vport->fc_sparam.portName.u.wwn);
4438 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4439 sizeof(struct lpfc_name));
4440 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4441 sizeof(struct lpfc_name));
4443 /* Update the fc_host data structures with new wwn. */
4444 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4445 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4447 /* Register SGL pool to the device using non-embedded mailbox command */
4448 rc = lpfc_sli4_post_sgl_list(phba);
4450 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4451 "0582 Error %d during sgl post operation\n",
4457 /* Register SCSI SGL pool to the device */
4458 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4460 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4461 "0383 Error %d during scsi sgl post "
4463 /* Some Scsi buffers were moved to the abort scsi list */
4464 /* A pci function reset will repost them */
4469 /* Post the rpi header region to the device. */
4470 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4472 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4473 "0393 Error %d during rpi post operation\n",
4479 /* Set up all the queues to the device */
4480 rc = lpfc_sli4_queue_setup(phba);
4482 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4483 "0381 Error %d during queue setup.\n ", rc);
4484 goto out_stop_timers;
4487 /* Arm the CQs and then EQs on device */
4488 lpfc_sli4_arm_cqeq_intr(phba);
4490 /* Indicate device interrupt mode */
4491 phba->sli4_hba.intr_enable = 1;
4493 /* Allow asynchronous mailbox command to go through */
4494 spin_lock_irq(&phba->hbalock);
4495 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4496 spin_unlock_irq(&phba->hbalock);
4498 /* Post receive buffers to the device */
4499 lpfc_sli4_rb_setup(phba);
4501 /* Start the ELS watchdog timer */
4502 mod_timer(&vport->els_tmofunc,
4503 jiffies + HZ * (phba->fc_ratov * 2));
4505 /* Start heart beat timer */
4506 mod_timer(&phba->hb_tmofunc,
4507 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4508 phba->hb_outstanding = 0;
4509 phba->last_completion_time = jiffies;
4511 /* Start error attention (ERATT) polling timer */
4512 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4515 * The port is ready, set the host's link state to LINK_DOWN
4516 * in preparation for link interrupts.
4518 lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
4519 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4520 lpfc_set_loopback_flag(phba);
4521 /* Change driver state to LPFC_LINK_DOWN right before init link */
4522 spin_lock_irq(&phba->hbalock);
4523 phba->link_state = LPFC_LINK_DOWN;
4524 spin_unlock_irq(&phba->hbalock);
4525 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
4526 if (unlikely(rc != MBX_NOT_FINISHED)) {
4532 /* Unset all the queues set up in this routine when error out */
4534 lpfc_sli4_queue_unset(phba);
4538 lpfc_stop_hba_timers(phba);
4542 mempool_free(mboxq, phba->mbox_mem_pool);
4547 * lpfc_mbox_timeout - Timeout call back function for mbox timer
4548 * @ptr: context object - pointer to hba structure.
4550 * This is the callback function for mailbox timer. The mailbox
4551 * timer is armed when a new mailbox command is issued and the timer
4552 * is deleted when the mailbox complete. The function is called by
4553 * the kernel timer code when a mailbox does not complete within
4554 * expected time. This function wakes up the worker thread to
4555 * process the mailbox timeout and returns. All the processing is
4556 * done by the worker thread function lpfc_mbox_timeout_handler.
4559 lpfc_mbox_timeout(unsigned long ptr)
4561 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
4562 unsigned long iflag;
4563 uint32_t tmo_posted;
4565 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
4566 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
4568 phba->pport->work_port_events |= WORKER_MBOX_TMO;
4569 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
4572 lpfc_worker_wake_up(phba);
4578 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
4579 * @phba: Pointer to HBA context object.
4581 * This function is called from worker thread when a mailbox command times out.
4582 * The caller is not required to hold any locks. This function will reset the
4583 * HBA and recover all the pending commands.
4586 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
4588 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
4589 MAILBOX_t *mb = &pmbox->u.mb;
4590 struct lpfc_sli *psli = &phba->sli;
4591 struct lpfc_sli_ring *pring;
4593 /* Check the pmbox pointer first. There is a race condition
4594 * between the mbox timeout handler getting executed in the
4595 * worklist and the mailbox actually completing. When this
4596 * race condition occurs, the mbox_active will be NULL.
4598 spin_lock_irq(&phba->hbalock);
4599 if (pmbox == NULL) {
4600 lpfc_printf_log(phba, KERN_WARNING,
4602 "0353 Active Mailbox cleared - mailbox timeout "
4604 spin_unlock_irq(&phba->hbalock);
4608 /* Mbox cmd <mbxCommand> timeout */
4609 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4610 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
4612 phba->pport->port_state,
4614 phba->sli.mbox_active);
4615 spin_unlock_irq(&phba->hbalock);
4617 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4618 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4619 * it to fail all oustanding SCSI IO.
4621 spin_lock_irq(&phba->pport->work_port_lock);
4622 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
4623 spin_unlock_irq(&phba->pport->work_port_lock);
4624 spin_lock_irq(&phba->hbalock);
4625 phba->link_state = LPFC_LINK_UNKNOWN;
4626 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4627 spin_unlock_irq(&phba->hbalock);
4629 pring = &psli->ring[psli->fcp_ring];
4630 lpfc_sli_abort_iocb_ring(phba, pring);
4632 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4633 "0345 Resetting board due to mailbox timeout\n");
4635 /* Reset the HBA device */
4636 lpfc_reset_hba(phba);
4640 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
4641 * @phba: Pointer to HBA context object.
4642 * @pmbox: Pointer to mailbox object.
4643 * @flag: Flag indicating how the mailbox need to be processed.
4645 * This function is called by discovery code and HBA management code
4646 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4647 * function gets the hbalock to protect the data structures.
4648 * The mailbox command can be submitted in polling mode, in which case
4649 * this function will wait in a polling loop for the completion of the
4651 * If the mailbox is submitted in no_wait mode (not polling) the
4652 * function will submit the command and returns immediately without waiting
4653 * for the mailbox completion. The no_wait is supported only when HBA
4654 * is in SLI2/SLI3 mode - interrupts are enabled.
4655 * The SLI interface allows only one mailbox pending at a time. If the
4656 * mailbox is issued in polling mode and there is already a mailbox
4657 * pending, then the function will return an error. If the mailbox is issued
4658 * in NO_WAIT mode and there is a mailbox pending already, the function
4659 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4660 * The sli layer owns the mailbox object until the completion of mailbox
4661 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4662 * return codes the caller owns the mailbox command after the return of
4666 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
4670 struct lpfc_sli *psli = &phba->sli;
4671 uint32_t status, evtctr;
4674 unsigned long timeout;
4675 unsigned long drvr_flag = 0;
4676 uint32_t word0, ldata;
4677 void __iomem *to_slim;
4678 int processing_queue = 0;
4680 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4682 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4683 /* processing mbox queue from intr_handler */
4684 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
4685 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4688 processing_queue = 1;
4689 pmbox = lpfc_mbox_get(phba);
4691 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4696 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
4697 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
4699 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4700 lpfc_printf_log(phba, KERN_ERR,
4701 LOG_MBOX | LOG_VPORT,
4702 "1806 Mbox x%x failed. No vport\n",
4703 pmbox->u.mb.mbxCommand);
4705 goto out_not_finished;
4709 /* If the PCI channel is in offline state, do not post mbox. */
4710 if (unlikely(pci_channel_offline(phba->pcidev))) {
4711 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4712 goto out_not_finished;
4715 /* If HBA has a deferred error attention, fail the iocb. */
4716 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
4717 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4718 goto out_not_finished;
4724 status = MBX_SUCCESS;
4726 if (phba->link_state == LPFC_HBA_ERROR) {
4727 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4729 /* Mbox command <mbxCommand> cannot issue */
4730 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4731 "(%d):0311 Mailbox command x%x cannot "
4732 "issue Data: x%x x%x\n",
4733 pmbox->vport ? pmbox->vport->vpi : 0,
4734 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4735 goto out_not_finished;
4738 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
4739 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
4740 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4741 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4742 "(%d):2528 Mailbox command x%x cannot "
4743 "issue Data: x%x x%x\n",
4744 pmbox->vport ? pmbox->vport->vpi : 0,
4745 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4746 goto out_not_finished;
4749 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
4750 /* Polling for a mbox command when another one is already active
4751 * is not allowed in SLI. Also, the driver must have established
4752 * SLI2 mode to queue and process multiple mbox commands.
4755 if (flag & MBX_POLL) {
4756 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4758 /* Mbox command <mbxCommand> cannot issue */
4759 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4760 "(%d):2529 Mailbox command x%x "
4761 "cannot issue Data: x%x x%x\n",
4762 pmbox->vport ? pmbox->vport->vpi : 0,
4763 pmbox->u.mb.mbxCommand,
4764 psli->sli_flag, flag);
4765 goto out_not_finished;
4768 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
4769 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4770 /* Mbox command <mbxCommand> cannot issue */
4771 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4772 "(%d):2530 Mailbox command x%x "
4773 "cannot issue Data: x%x x%x\n",
4774 pmbox->vport ? pmbox->vport->vpi : 0,
4775 pmbox->u.mb.mbxCommand,
4776 psli->sli_flag, flag);
4777 goto out_not_finished;
4780 /* Another mailbox command is still being processed, queue this
4781 * command to be processed later.
4783 lpfc_mbox_put(phba, pmbox);
4785 /* Mbox cmd issue - BUSY */
4786 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4787 "(%d):0308 Mbox cmd issue - BUSY Data: "
4788 "x%x x%x x%x x%x\n",
4789 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
4790 mb->mbxCommand, phba->pport->port_state,
4791 psli->sli_flag, flag);
4793 psli->slistat.mbox_busy++;
4794 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4797 lpfc_debugfs_disc_trc(pmbox->vport,
4798 LPFC_DISC_TRC_MBOX_VPORT,
4799 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4800 (uint32_t)mb->mbxCommand,
4801 mb->un.varWords[0], mb->un.varWords[1]);
4804 lpfc_debugfs_disc_trc(phba->pport,
4806 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4807 (uint32_t)mb->mbxCommand,
4808 mb->un.varWords[0], mb->un.varWords[1]);
4814 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4816 /* If we are not polling, we MUST be in SLI2 mode */
4817 if (flag != MBX_POLL) {
4818 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
4819 (mb->mbxCommand != MBX_KILL_BOARD)) {
4820 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4821 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4822 /* Mbox command <mbxCommand> cannot issue */
4823 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4824 "(%d):2531 Mailbox command x%x "
4825 "cannot issue Data: x%x x%x\n",
4826 pmbox->vport ? pmbox->vport->vpi : 0,
4827 pmbox->u.mb.mbxCommand,
4828 psli->sli_flag, flag);
4829 goto out_not_finished;
4831 /* timeout active mbox command */
4832 mod_timer(&psli->mbox_tmo, (jiffies +
4833 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
4836 /* Mailbox cmd <cmd> issue */
4837 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4838 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
4840 pmbox->vport ? pmbox->vport->vpi : 0,
4841 mb->mbxCommand, phba->pport->port_state,
4842 psli->sli_flag, flag);
4844 if (mb->mbxCommand != MBX_HEARTBEAT) {
4846 lpfc_debugfs_disc_trc(pmbox->vport,
4847 LPFC_DISC_TRC_MBOX_VPORT,
4848 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4849 (uint32_t)mb->mbxCommand,
4850 mb->un.varWords[0], mb->un.varWords[1]);
4853 lpfc_debugfs_disc_trc(phba->pport,
4855 "MBOX Send: cmd:x%x mb:x%x x%x",
4856 (uint32_t)mb->mbxCommand,
4857 mb->un.varWords[0], mb->un.varWords[1]);
4861 psli->slistat.mbox_cmd++;
4862 evtctr = psli->slistat.mbox_event;
4864 /* next set own bit for the adapter and copy over command word */
4865 mb->mbxOwner = OWN_CHIP;
4867 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4868 /* First copy command data to host SLIM area */
4869 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4871 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4872 /* copy command data into host mbox for cmpl */
4873 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4876 /* First copy mbox command data to HBA SLIM, skip past first
4878 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4879 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
4880 MAILBOX_CMD_SIZE - sizeof (uint32_t));
4882 /* Next copy over first word, with mbxOwner set */
4883 ldata = *((uint32_t *)mb);
4884 to_slim = phba->MBslimaddr;
4885 writel(ldata, to_slim);
4886 readl(to_slim); /* flush */
4888 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4889 /* switch over to host mailbox */
4890 psli->sli_flag |= LPFC_SLI_ACTIVE;
4898 /* Set up reference to mailbox command */
4899 psli->mbox_active = pmbox;
4900 /* Interrupt board to do it */
4901 writel(CA_MBATT, phba->CAregaddr);
4902 readl(phba->CAregaddr); /* flush */
4903 /* Don't wait for it to finish, just return */
4907 /* Set up null reference to mailbox command */
4908 psli->mbox_active = NULL;
4909 /* Interrupt board to do it */
4910 writel(CA_MBATT, phba->CAregaddr);
4911 readl(phba->CAregaddr); /* flush */
4913 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4914 /* First read mbox status word */
4915 word0 = *((uint32_t *)phba->mbox);
4916 word0 = le32_to_cpu(word0);
4918 /* First read mbox status word */
4919 word0 = readl(phba->MBslimaddr);
4922 /* Read the HBA Host Attention Register */
4923 ha_copy = readl(phba->HAregaddr);
4924 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
4928 /* Wait for command to complete */
4929 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
4930 (!(ha_copy & HA_MBATT) &&
4931 (phba->link_state > LPFC_WARM_START))) {
4932 if (time_after(jiffies, timeout)) {
4933 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4934 spin_unlock_irqrestore(&phba->hbalock,
4936 goto out_not_finished;
4939 /* Check if we took a mbox interrupt while we were
4941 if (((word0 & OWN_CHIP) != OWN_CHIP)
4942 && (evtctr != psli->slistat.mbox_event))
4946 spin_unlock_irqrestore(&phba->hbalock,
4949 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4952 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4953 /* First copy command data */
4954 word0 = *((uint32_t *)phba->mbox);
4955 word0 = le32_to_cpu(word0);
4956 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4959 /* Check real SLIM for any errors */
4960 slimword0 = readl(phba->MBslimaddr);
4961 slimmb = (MAILBOX_t *) & slimword0;
4962 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
4963 && slimmb->mbxStatus) {
4970 /* First copy command data */
4971 word0 = readl(phba->MBslimaddr);
4973 /* Read the HBA Host Attention Register */
4974 ha_copy = readl(phba->HAregaddr);
4977 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4978 /* copy results back to user */
4979 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
4981 /* First copy command data */
4982 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
4984 if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
4986 lpfc_memcpy_from_slim((void *)pmbox->context2,
4987 phba->MBslimaddr + DMP_RSP_OFFSET,
4988 mb->un.varDmp.word_cnt);
4992 writel(HA_MBATT, phba->HAregaddr);
4993 readl(phba->HAregaddr); /* flush */
4995 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4996 status = mb->mbxStatus;
4999 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5003 if (processing_queue) {
5004 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
5005 lpfc_mbox_cmpl_put(phba, pmbox);
5007 return MBX_NOT_FINISHED;
5011 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5012 * @phba: Pointer to HBA context object.
5014 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5015 * the driver internal pending mailbox queue. It will then try to wait out the
5016 * possible outstanding mailbox command before return.
5019 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5020 * the outstanding mailbox command timed out.
5023 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
5025 struct lpfc_sli *psli = &phba->sli;
5026 uint8_t actcmd = MBX_HEARTBEAT;
5028 unsigned long timeout;
5030 /* Mark the asynchronous mailbox command posting as blocked */
5031 spin_lock_irq(&phba->hbalock);
5032 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
5033 if (phba->sli.mbox_active)
5034 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
5035 spin_unlock_irq(&phba->hbalock);
5036 /* Determine how long we might wait for the active mailbox
5037 * command to be gracefully completed by firmware.
5039 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
5041 /* Wait for the outstnading mailbox command to complete */
5042 while (phba->sli.mbox_active) {
5043 /* Check active mailbox complete status every 2ms */
5045 if (time_after(jiffies, timeout)) {
5046 /* Timeout, marked the outstanding cmd not complete */
5052 /* Can not cleanly block async mailbox command, fails it */
5054 spin_lock_irq(&phba->hbalock);
5055 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5056 spin_unlock_irq(&phba->hbalock);
5062 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5063 * @phba: Pointer to HBA context object.
5065 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5066 * commands from the driver internal pending mailbox queue. It makes sure
5067 * that there is no outstanding mailbox command before resuming posting
5068 * asynchronous mailbox commands. If, for any reason, there is outstanding
5069 * mailbox command, it will try to wait it out before resuming asynchronous
5070 * mailbox command posting.
5073 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5075 struct lpfc_sli *psli = &phba->sli;
5077 spin_lock_irq(&phba->hbalock);
5078 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5079 /* Asynchronous mailbox posting is not blocked, do nothing */
5080 spin_unlock_irq(&phba->hbalock);
5084 /* Outstanding synchronous mailbox command is guaranteed to be done,
5085 * successful or timeout, after timing-out the outstanding mailbox
5086 * command shall always be removed, so just unblock posting async
5087 * mailbox command and resume
5089 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5090 spin_unlock_irq(&phba->hbalock);
5092 /* wake up worker thread to post asynchronlous mailbox command */
5093 lpfc_worker_wake_up(phba);
5097 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5098 * @phba: Pointer to HBA context object.
5099 * @mboxq: Pointer to mailbox object.
5101 * The function posts a mailbox to the port. The mailbox is expected
5102 * to be comletely filled in and ready for the port to operate on it.
5103 * This routine executes a synchronous completion operation on the
5104 * mailbox by polling for its completion.
5106 * The caller must not be holding any locks when calling this routine.
5109 * MBX_SUCCESS - mailbox posted successfully
5110 * Any of the MBX error values.
5113 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5115 int rc = MBX_SUCCESS;
5116 unsigned long iflag;
5118 uint32_t mcqe_status;
5120 unsigned long timeout;
5121 struct lpfc_sli *psli = &phba->sli;
5122 struct lpfc_mqe *mb = &mboxq->u.mqe;
5123 struct lpfc_bmbx_create *mbox_rgn;
5124 struct dma_address *dma_address;
5125 struct lpfc_register bmbx_reg;
5128 * Only one mailbox can be active to the bootstrap mailbox region
5129 * at a time and there is no queueing provided.
5131 spin_lock_irqsave(&phba->hbalock, iflag);
5132 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5133 spin_unlock_irqrestore(&phba->hbalock, iflag);
5134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5135 "(%d):2532 Mailbox command x%x (x%x) "
5136 "cannot issue Data: x%x x%x\n",
5137 mboxq->vport ? mboxq->vport->vpi : 0,
5138 mboxq->u.mb.mbxCommand,
5139 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5140 psli->sli_flag, MBX_POLL);
5141 return MBXERR_ERROR;
5143 /* The server grabs the token and owns it until release */
5144 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5145 phba->sli.mbox_active = mboxq;
5146 spin_unlock_irqrestore(&phba->hbalock, iflag);
5149 * Initialize the bootstrap memory region to avoid stale data areas
5150 * in the mailbox post. Then copy the caller's mailbox contents to
5151 * the bmbx mailbox region.
5153 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5154 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5155 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5156 sizeof(struct lpfc_mqe));
5158 /* Post the high mailbox dma address to the port and wait for ready. */
5159 dma_address = &phba->sli4_hba.bmbx.dma_address;
5160 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5162 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5165 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5166 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5170 if (time_after(jiffies, timeout)) {
5174 } while (!db_ready);
5176 /* Post the low mailbox dma address to the port. */
5177 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5178 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5181 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5182 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5186 if (time_after(jiffies, timeout)) {
5190 } while (!db_ready);
5193 * Read the CQ to ensure the mailbox has completed.
5194 * If so, update the mailbox status so that the upper layers
5195 * can complete the request normally.
5197 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5198 sizeof(struct lpfc_mqe));
5199 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5200 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5201 sizeof(struct lpfc_mcqe));
5202 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5204 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5205 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5206 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5210 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5211 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5212 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5213 " x%x x%x CQ: x%x x%x x%x x%x\n",
5214 mboxq->vport ? mboxq->vport->vpi : 0,
5215 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5216 bf_get(lpfc_mqe_status, mb),
5217 mb->un.mb_words[0], mb->un.mb_words[1],
5218 mb->un.mb_words[2], mb->un.mb_words[3],
5219 mb->un.mb_words[4], mb->un.mb_words[5],
5220 mb->un.mb_words[6], mb->un.mb_words[7],
5221 mb->un.mb_words[8], mb->un.mb_words[9],
5222 mb->un.mb_words[10], mb->un.mb_words[11],
5223 mb->un.mb_words[12], mboxq->mcqe.word0,
5224 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5225 mboxq->mcqe.trailer);
5227 /* We are holding the token, no needed for lock when release */
5228 spin_lock_irqsave(&phba->hbalock, iflag);
5229 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5230 phba->sli.mbox_active = NULL;
5231 spin_unlock_irqrestore(&phba->hbalock, iflag);
5236 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5237 * @phba: Pointer to HBA context object.
5238 * @pmbox: Pointer to mailbox object.
5239 * @flag: Flag indicating how the mailbox need to be processed.
5241 * This function is called by discovery code and HBA management code to submit
5242 * a mailbox command to firmware with SLI-4 interface spec.
5244 * Return codes the caller owns the mailbox command after the return of the
5248 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5251 struct lpfc_sli *psli = &phba->sli;
5252 unsigned long iflags;
5255 rc = lpfc_mbox_dev_check(phba);
5257 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5258 "(%d):2544 Mailbox command x%x (x%x) "
5259 "cannot issue Data: x%x x%x\n",
5260 mboxq->vport ? mboxq->vport->vpi : 0,
5261 mboxq->u.mb.mbxCommand,
5262 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5263 psli->sli_flag, flag);
5264 goto out_not_finished;
5267 /* Detect polling mode and jump to a handler */
5268 if (!phba->sli4_hba.intr_enable) {
5269 if (flag == MBX_POLL)
5270 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5273 if (rc != MBX_SUCCESS)
5274 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5275 "(%d):2541 Mailbox command x%x "
5276 "(x%x) cannot issue Data: x%x x%x\n",
5277 mboxq->vport ? mboxq->vport->vpi : 0,
5278 mboxq->u.mb.mbxCommand,
5279 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5280 psli->sli_flag, flag);
5282 } else if (flag == MBX_POLL) {
5283 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5284 "(%d):2542 Try to issue mailbox command "
5285 "x%x (x%x) synchronously ahead of async"
5286 "mailbox command queue: x%x x%x\n",
5287 mboxq->vport ? mboxq->vport->vpi : 0,
5288 mboxq->u.mb.mbxCommand,
5289 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5290 psli->sli_flag, flag);
5291 /* Try to block the asynchronous mailbox posting */
5292 rc = lpfc_sli4_async_mbox_block(phba);
5294 /* Successfully blocked, now issue sync mbox cmd */
5295 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5296 if (rc != MBX_SUCCESS)
5297 lpfc_printf_log(phba, KERN_ERR,
5299 "(%d):2597 Mailbox command "
5300 "x%x (x%x) cannot issue "
5303 mboxq->vport->vpi : 0,
5304 mboxq->u.mb.mbxCommand,
5305 lpfc_sli4_mbox_opcode_get(phba,
5307 psli->sli_flag, flag);
5308 /* Unblock the async mailbox posting afterward */
5309 lpfc_sli4_async_mbox_unblock(phba);
5314 /* Now, interrupt mode asynchrous mailbox command */
5315 rc = lpfc_mbox_cmd_check(phba, mboxq);
5317 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5318 "(%d):2543 Mailbox command x%x (x%x) "
5319 "cannot issue Data: x%x x%x\n",
5320 mboxq->vport ? mboxq->vport->vpi : 0,
5321 mboxq->u.mb.mbxCommand,
5322 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5323 psli->sli_flag, flag);
5324 goto out_not_finished;
5327 /* Put the mailbox command to the driver internal FIFO */
5328 psli->slistat.mbox_busy++;
5329 spin_lock_irqsave(&phba->hbalock, iflags);
5330 lpfc_mbox_put(phba, mboxq);
5331 spin_unlock_irqrestore(&phba->hbalock, iflags);
5332 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5333 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5334 "x%x (x%x) x%x x%x x%x\n",
5335 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5336 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5337 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5338 phba->pport->port_state,
5339 psli->sli_flag, MBX_NOWAIT);
5340 /* Wake up worker thread to transport mailbox command from head */
5341 lpfc_worker_wake_up(phba);
5346 return MBX_NOT_FINISHED;
5350 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5351 * @phba: Pointer to HBA context object.
5353 * This function is called by worker thread to send a mailbox command to
5354 * SLI4 HBA firmware.
5358 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5360 struct lpfc_sli *psli = &phba->sli;
5361 LPFC_MBOXQ_t *mboxq;
5362 int rc = MBX_SUCCESS;
5363 unsigned long iflags;
5364 struct lpfc_mqe *mqe;
5367 /* Check interrupt mode before post async mailbox command */
5368 if (unlikely(!phba->sli4_hba.intr_enable))
5369 return MBX_NOT_FINISHED;
5371 /* Check for mailbox command service token */
5372 spin_lock_irqsave(&phba->hbalock, iflags);
5373 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5374 spin_unlock_irqrestore(&phba->hbalock, iflags);
5375 return MBX_NOT_FINISHED;
5377 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5378 spin_unlock_irqrestore(&phba->hbalock, iflags);
5379 return MBX_NOT_FINISHED;
5381 if (unlikely(phba->sli.mbox_active)) {
5382 spin_unlock_irqrestore(&phba->hbalock, iflags);
5383 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5384 "0384 There is pending active mailbox cmd\n");
5385 return MBX_NOT_FINISHED;
5387 /* Take the mailbox command service token */
5388 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5390 /* Get the next mailbox command from head of queue */
5391 mboxq = lpfc_mbox_get(phba);
5393 /* If no more mailbox command waiting for post, we're done */
5395 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5396 spin_unlock_irqrestore(&phba->hbalock, iflags);
5399 phba->sli.mbox_active = mboxq;
5400 spin_unlock_irqrestore(&phba->hbalock, iflags);
5402 /* Check device readiness for posting mailbox command */
5403 rc = lpfc_mbox_dev_check(phba);
5405 /* Driver clean routine will clean up pending mailbox */
5406 goto out_not_finished;
5408 /* Prepare the mbox command to be posted */
5409 mqe = &mboxq->u.mqe;
5410 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5412 /* Start timer for the mbox_tmo and log some mailbox post messages */
5413 mod_timer(&psli->mbox_tmo, (jiffies +
5414 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5416 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5417 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5419 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5420 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5421 phba->pport->port_state, psli->sli_flag);
5423 if (mbx_cmnd != MBX_HEARTBEAT) {
5425 lpfc_debugfs_disc_trc(mboxq->vport,
5426 LPFC_DISC_TRC_MBOX_VPORT,
5427 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5428 mbx_cmnd, mqe->un.mb_words[0],
5429 mqe->un.mb_words[1]);
5431 lpfc_debugfs_disc_trc(phba->pport,
5433 "MBOX Send: cmd:x%x mb:x%x x%x",
5434 mbx_cmnd, mqe->un.mb_words[0],
5435 mqe->un.mb_words[1]);
5438 psli->slistat.mbox_cmd++;
5440 /* Post the mailbox command to the port */
5441 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5442 if (rc != MBX_SUCCESS) {
5443 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5444 "(%d):2533 Mailbox command x%x (x%x) "
5445 "cannot issue Data: x%x x%x\n",
5446 mboxq->vport ? mboxq->vport->vpi : 0,
5447 mboxq->u.mb.mbxCommand,
5448 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5449 psli->sli_flag, MBX_NOWAIT);
5450 goto out_not_finished;
5456 spin_lock_irqsave(&phba->hbalock, iflags);
5457 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5458 __lpfc_mbox_cmpl_put(phba, mboxq);
5459 /* Release the token */
5460 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5461 phba->sli.mbox_active = NULL;
5462 spin_unlock_irqrestore(&phba->hbalock, iflags);
5464 return MBX_NOT_FINISHED;
5468 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5469 * @phba: Pointer to HBA context object.
5470 * @pmbox: Pointer to mailbox object.
5471 * @flag: Flag indicating how the mailbox need to be processed.
5473 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5474 * the API jump table function pointer from the lpfc_hba struct.
5476 * Return codes the caller owns the mailbox command after the return of the
5480 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5482 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5486 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5487 * @phba: The hba struct for which this call is being executed.
5488 * @dev_grp: The HBA PCI-Device group number.
5490 * This routine sets up the mbox interface API function jump table in @phba
5492 * Returns: 0 - success, -ENODEV - failure.
5495 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5499 case LPFC_PCI_DEV_LP:
5500 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
5501 phba->lpfc_sli_handle_slow_ring_event =
5502 lpfc_sli_handle_slow_ring_event_s3;
5503 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
5504 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
5505 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
5507 case LPFC_PCI_DEV_OC:
5508 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
5509 phba->lpfc_sli_handle_slow_ring_event =
5510 lpfc_sli_handle_slow_ring_event_s4;
5511 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
5512 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
5513 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
5516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5517 "1420 Invalid HBA PCI-device group: 0x%x\n",
5526 * __lpfc_sli_ringtx_put - Add an iocb to the txq
5527 * @phba: Pointer to HBA context object.
5528 * @pring: Pointer to driver SLI ring object.
5529 * @piocb: Pointer to address of newly added command iocb.
5531 * This function is called with hbalock held to add a command
5532 * iocb to the txq when SLI layer cannot submit the command iocb
5536 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5537 struct lpfc_iocbq *piocb)
5539 /* Insert the caller's iocb in the txq tail for later processing. */
5540 list_add_tail(&piocb->list, &pring->txq);
5545 * lpfc_sli_next_iocb - Get the next iocb in the txq
5546 * @phba: Pointer to HBA context object.
5547 * @pring: Pointer to driver SLI ring object.
5548 * @piocb: Pointer to address of newly added command iocb.
5550 * This function is called with hbalock held before a new
5551 * iocb is submitted to the firmware. This function checks
5552 * txq to flush the iocbs in txq to Firmware before
5553 * submitting new iocbs to the Firmware.
5554 * If there are iocbs in the txq which need to be submitted
5555 * to firmware, lpfc_sli_next_iocb returns the first element
5556 * of the txq after dequeuing it from txq.
5557 * If there is no iocb in the txq then the function will return
5558 * *piocb and *piocb is set to NULL. Caller needs to check
5559 * *piocb to find if there are more commands in the txq.
5561 static struct lpfc_iocbq *
5562 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5563 struct lpfc_iocbq **piocb)
5565 struct lpfc_iocbq * nextiocb;
5567 nextiocb = lpfc_sli_ringtx_get(phba, pring);
5577 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
5578 * @phba: Pointer to HBA context object.
5579 * @ring_number: SLI ring number to issue iocb on.
5580 * @piocb: Pointer to command iocb.
5581 * @flag: Flag indicating if this command can be put into txq.
5583 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5584 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5585 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5586 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5587 * this function allows only iocbs for posting buffers. This function finds
5588 * next available slot in the command ring and posts the command to the
5589 * available slot and writes the port attention register to request HBA start
5590 * processing new iocb. If there is no slot available in the ring and
5591 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5592 * the function returns IOCB_BUSY.
5594 * This function is called with hbalock held. The function will return success
5595 * after it successfully submit the iocb to firmware or after adding to the
5599 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
5600 struct lpfc_iocbq *piocb, uint32_t flag)
5602 struct lpfc_iocbq *nextiocb;
5604 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
5606 if (piocb->iocb_cmpl && (!piocb->vport) &&
5607 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
5608 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
5609 lpfc_printf_log(phba, KERN_ERR,
5610 LOG_SLI | LOG_VPORT,
5611 "1807 IOCB x%x failed. No vport\n",
5612 piocb->iocb.ulpCommand);
5618 /* If the PCI channel is in offline state, do not post iocbs. */
5619 if (unlikely(pci_channel_offline(phba->pcidev)))
5622 /* If HBA has a deferred error attention, fail the iocb. */
5623 if (unlikely(phba->hba_flag & DEFER_ERATT))
5627 * We should never get an IOCB if we are in a < LINK_DOWN state
5629 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
5633 * Check to see if we are blocking IOCB processing because of a
5634 * outstanding event.
5636 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
5639 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
5641 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
5642 * can be issued if the link is not up.
5644 switch (piocb->iocb.ulpCommand) {
5645 case CMD_GEN_REQUEST64_CR:
5646 case CMD_GEN_REQUEST64_CX:
5647 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
5648 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
5649 FC_RCTL_DD_UNSOL_CMD) ||
5650 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
5651 MENLO_TRANSPORT_TYPE))
5655 case CMD_QUE_RING_BUF_CN:
5656 case CMD_QUE_RING_BUF64_CN:
5658 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5659 * completion, iocb_cmpl MUST be 0.
5661 if (piocb->iocb_cmpl)
5662 piocb->iocb_cmpl = NULL;
5664 case CMD_CREATE_XRI_CR:
5665 case CMD_CLOSE_XRI_CN:
5666 case CMD_CLOSE_XRI_CX:
5673 * For FCP commands, we must be in a state where we can process link
5676 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
5677 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
5681 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
5682 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
5683 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
5686 lpfc_sli_update_ring(phba, pring);
5688 lpfc_sli_update_full_ring(phba, pring);
5691 return IOCB_SUCCESS;
5696 pring->stats.iocb_cmd_delay++;
5700 if (!(flag & SLI_IOCB_RET_IOCB)) {
5701 __lpfc_sli_ringtx_put(phba, pring, piocb);
5702 return IOCB_SUCCESS;
5709 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5710 * @phba: Pointer to HBA context object.
5711 * @piocb: Pointer to command iocb.
5712 * @sglq: Pointer to the scatter gather queue object.
5714 * This routine converts the bpl or bde that is in the IOCB
5715 * to a sgl list for the sli4 hardware. The physical address
5716 * of the bpl/bde is converted back to a virtual address.
5717 * If the IOCB contains a BPL then the list of BDE's is
5718 * converted to sli4_sge's. If the IOCB contains a single
5719 * BDE then it is converted to a single sli_sge.
5720 * The IOCB is still in cpu endianess so the contents of
5721 * the bpl can be used without byte swapping.
5723 * Returns valid XRI = Success, NO_XRI = Failure.
5726 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
5727 struct lpfc_sglq *sglq)
5729 uint16_t xritag = NO_XRI;
5730 struct ulp_bde64 *bpl = NULL;
5731 struct ulp_bde64 bde;
5732 struct sli4_sge *sgl = NULL;
5737 if (!piocbq || !sglq)
5740 sgl = (struct sli4_sge *)sglq->sgl;
5741 icmd = &piocbq->iocb;
5742 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5743 numBdes = icmd->un.genreq64.bdl.bdeSize /
5744 sizeof(struct ulp_bde64);
5745 /* The addrHigh and addrLow fields within the IOCB
5746 * have not been byteswapped yet so there is no
5747 * need to swap them back.
5749 bpl = (struct ulp_bde64 *)
5750 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
5755 for (i = 0; i < numBdes; i++) {
5756 /* Should already be byte swapped. */
5757 sgl->addr_hi = bpl->addrHigh;
5758 sgl->addr_lo = bpl->addrLow;
5760 if ((i+1) == numBdes)
5761 bf_set(lpfc_sli4_sge_last, sgl, 1);
5763 bf_set(lpfc_sli4_sge_last, sgl, 0);
5764 sgl->word2 = cpu_to_le32(sgl->word2);
5765 /* swap the size field back to the cpu so we
5766 * can assign it to the sgl.
5768 bde.tus.w = le32_to_cpu(bpl->tus.w);
5769 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
5773 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
5774 /* The addrHigh and addrLow fields of the BDE have not
5775 * been byteswapped yet so they need to be swapped
5776 * before putting them in the sgl.
5779 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
5781 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
5782 bf_set(lpfc_sli4_sge_last, sgl, 1);
5783 sgl->word2 = cpu_to_le32(sgl->word2);
5785 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
5787 return sglq->sli4_xritag;
5791 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5792 * @phba: Pointer to HBA context object.
5794 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
5795 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5798 * Return: index into SLI4 fast-path FCP queue index.
5801 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
5804 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
5807 return phba->fcp_qidx;
5811 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5812 * @phba: Pointer to HBA context object.
5813 * @piocb: Pointer to command iocb.
5814 * @wqe: Pointer to the work queue entry.
5816 * This routine converts the iocb command to its Work Queue Entry
5817 * equivalent. The wqe pointer should not have any fields set when
5818 * this routine is called because it will memcpy over them.
5819 * This routine does not set the CQ_ID or the WQEC bits in the
5822 * Returns: 0 = Success, IOCB_ERROR = Failure.
5825 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
5826 union lpfc_wqe *wqe)
5828 uint32_t xmit_len = 0, total_len = 0;
5832 uint8_t command_type = ELS_COMMAND_NON_FIP;
5835 struct ulp_bde64 *bpl = NULL;
5836 uint32_t els_id = ELS_ID_DEFAULT;
5838 struct ulp_bde64 bde;
5840 fip = phba->hba_flag & HBA_FIP_SUPPORT;
5841 /* The fcp commands will set command type */
5842 if (iocbq->iocb_flag & LPFC_IO_FCP)
5843 command_type = FCP_COMMAND;
5844 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
5845 command_type = ELS_COMMAND_FIP;
5847 command_type = ELS_COMMAND_NON_FIP;
5849 /* Some of the fields are in the right position already */
5850 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
5851 abort_tag = (uint32_t) iocbq->iotag;
5852 xritag = iocbq->sli4_xritag;
5853 wqe->words[7] = 0; /* The ct field has moved so reset */
5854 /* words0-2 bpl convert bde */
5855 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5856 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
5857 sizeof(struct ulp_bde64);
5858 bpl = (struct ulp_bde64 *)
5859 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
5863 /* Should already be byte swapped. */
5864 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
5865 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
5866 /* swap the size field back to the cpu so we
5867 * can assign it to the sgl.
5869 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
5870 xmit_len = wqe->generic.bde.tus.f.bdeSize;
5872 for (i = 0; i < numBdes; i++) {
5873 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
5874 total_len += bde.tus.f.bdeSize;
5877 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
5879 iocbq->iocb.ulpIoTag = iocbq->iotag;
5880 cmnd = iocbq->iocb.ulpCommand;
5882 switch (iocbq->iocb.ulpCommand) {
5883 case CMD_ELS_REQUEST64_CR:
5884 if (!iocbq->iocb.ulpLe) {
5885 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5886 "2007 Only Limited Edition cmd Format"
5887 " supported 0x%x\n",
5888 iocbq->iocb.ulpCommand);
5891 wqe->els_req.payload_len = xmit_len;
5892 /* Els_reguest64 has a TMO */
5893 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
5894 iocbq->iocb.ulpTimeout);
5895 /* Need a VF for word 4 set the vf bit*/
5896 bf_set(els_req64_vf, &wqe->els_req, 0);
5897 /* And a VFID for word 12 */
5898 bf_set(els_req64_vfid, &wqe->els_req, 0);
5900 * Set ct field to 3, indicates that the context_tag field
5901 * contains the FCFI and remote N_Port_ID is
5905 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5906 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5907 iocbq->iocb.ulpContext);
5909 bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
5910 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5911 /* CCP CCPE PV PRI in word10 were set in the memcpy */
5913 if (command_type == ELS_COMMAND_FIP) {
5914 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
5915 >> LPFC_FIP_ELS_ID_SHIFT);
5917 bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id);
5920 case CMD_XMIT_SEQUENCE64_CX:
5921 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5922 iocbq->iocb.un.ulpWord[3]);
5923 wqe->generic.word3 = 0;
5924 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
5925 /* The entire sequence is transmitted for this IOCB */
5926 xmit_len = total_len;
5927 cmnd = CMD_XMIT_SEQUENCE64_CR;
5928 case CMD_XMIT_SEQUENCE64_CR:
5929 /* word3 iocb=io_tag32 wqe=payload_offset */
5930 /* payload offset used for multilpe outstanding
5931 * sequences on the same exchange
5934 /* word4 relative_offset memcpy */
5935 /* word5 r_ctl/df_ctl memcpy */
5936 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5937 wqe->xmit_sequence.xmit_len = xmit_len;
5938 command_type = OTHER_COMMAND;
5940 case CMD_XMIT_BCAST64_CN:
5941 /* word3 iocb=iotag32 wqe=payload_len */
5942 wqe->words[3] = 0; /* no definition for this in wqe */
5943 /* word4 iocb=rsvd wqe=rsvd */
5944 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
5945 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
5946 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
5947 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
5949 case CMD_FCP_IWRITE64_CR:
5950 command_type = FCP_COMMAND_DATA_OUT;
5951 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
5953 * word3 is payload_len: byte offset to the sgl entry for the
5955 * word4 is total xfer len, same as the IOCB->ulpParameter.
5956 * word5 is initial xfer len 0 = wait for xfer-ready
5959 /* Always wait for xfer-ready before sending data */
5960 wqe->fcp_iwrite.initial_xfer_len = 0;
5961 /* word 4 (xfer length) should have been set on the memcpy */
5963 /* allow write to fall through to read */
5964 case CMD_FCP_IREAD64_CR:
5965 /* FCP_CMD is always the 1st sgl entry */
5966 wqe->fcp_iread.payload_len =
5967 xmit_len + sizeof(struct fcp_rsp);
5969 /* word 4 (xfer length) should have been set on the memcpy */
5971 bf_set(lpfc_wqe_gen_erp, &wqe->generic,
5972 iocbq->iocb.ulpFCP2Rcvy);
5973 bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
5974 /* The XC bit and the XS bit are similar. The driver never
5975 * tracked whether or not the exchange was previouslly open.
5976 * XC = Exchange create, 0 is create. 1 is already open.
5977 * XS = link cmd: 1 do not close the exchange after command.
5978 * XS = 0 close exchange when command completes.
5979 * The only time we would not set the XC bit is when the XS bit
5980 * is set and we are sending our 2nd or greater command on
5983 /* Always open the exchange */
5984 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5986 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5987 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
5989 case CMD_FCP_ICMND64_CR:
5990 /* Always open the exchange */
5991 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5994 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5995 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5997 case CMD_GEN_REQUEST64_CR:
5998 /* word3 command length is described as byte offset to the
5999 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
6004 wqe->gen_req.command_len = xmit_len;
6005 /* Word4 parameter copied in the memcpy */
6006 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
6007 /* word6 context tag copied in memcpy */
6008 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
6009 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
6010 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6011 "2015 Invalid CT %x command 0x%x\n",
6012 ct, iocbq->iocb.ulpCommand);
6015 bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
6016 bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
6017 iocbq->iocb.ulpTimeout);
6019 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6020 command_type = OTHER_COMMAND;
6022 case CMD_XMIT_ELS_RSP64_CX:
6023 /* words0-2 BDE memcpy */
6024 /* word3 iocb=iotag32 wqe=rsvd */
6026 /* word4 iocb=did wge=rsvd. */
6028 /* word5 iocb=rsvd wge=did */
6029 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
6030 iocbq->iocb.un.elsreq64.remoteID);
6032 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6033 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6035 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6036 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
6037 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
6038 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6039 iocbq->vport->vpi + phba->vpi_base);
6040 command_type = OTHER_COMMAND;
6042 case CMD_CLOSE_XRI_CN:
6043 case CMD_ABORT_XRI_CN:
6044 case CMD_ABORT_XRI_CX:
6045 /* words 0-2 memcpy should be 0 rserved */
6046 /* port will send abts */
6047 if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6049 * The link is down so the fw does not need to send abts
6052 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
6054 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
6055 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
6057 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6058 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6059 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
6061 * The abort handler will send us CMD_ABORT_XRI_CN or
6062 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6064 bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
6065 cmnd = CMD_ABORT_XRI_CX;
6066 command_type = OTHER_COMMAND;
6069 case CMD_XMIT_BLS_RSP64_CX:
6070 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6071 * we re-construct this WQE here based on information in
6072 * iocbq from scratch.
6074 memset(wqe, 0, sizeof(union lpfc_wqe));
6075 /* OX_ID is invariable to who sent ABTS to CT exchange */
6076 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
6077 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
6078 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
6079 LPFC_ABTS_UNSOL_INT) {
6080 /* ABTS sent by initiator to CT exchange, the
6081 * RX_ID field will be filled with the newly
6082 * allocated responder XRI.
6084 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6085 iocbq->sli4_xritag);
6087 /* ABTS sent by responder to CT exchange, the
6088 * RX_ID field will be filled with the responder
6091 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6092 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
6094 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
6095 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
6096 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
6097 iocbq->iocb.ulpContext);
6098 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6099 command_type = OTHER_COMMAND;
6101 case CMD_XRI_ABORTED_CX:
6102 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
6103 /* words0-2 are all 0's no bde */
6104 /* word3 and word4 are rsvrd */
6107 /* word5 iocb=rsvd wge=did */
6108 /* There is no remote port id in the IOCB? */
6109 /* Let this fall through and fail */
6110 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6111 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6112 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6113 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6115 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6116 "2014 Invalid command 0x%x\n",
6117 iocbq->iocb.ulpCommand);
6122 bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
6123 bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
6124 wqe->generic.abort_tag = abort_tag;
6125 bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
6126 bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
6127 bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
6128 bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
6134 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6135 * @phba: Pointer to HBA context object.
6136 * @ring_number: SLI ring number to issue iocb on.
6137 * @piocb: Pointer to command iocb.
6138 * @flag: Flag indicating if this command can be put into txq.
6140 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6141 * an iocb command to an HBA with SLI-4 interface spec.
6143 * This function is called with hbalock held. The function will return success
6144 * after it successfully submit the iocb to firmware or after adding to the
6148 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6149 struct lpfc_iocbq *piocb, uint32_t flag)
6151 struct lpfc_sglq *sglq;
6154 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
6156 if (piocb->sli4_xritag == NO_XRI) {
6157 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6158 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6161 sglq = __lpfc_sli_get_sglq(phba);
6164 piocb->sli4_xritag = sglq->sli4_xritag;
6166 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6167 sglq = NULL; /* These IO's already have an XRI and
6171 /* This is a continuation of a commandi,(CX) so this
6172 * sglq is on the active list
6174 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6180 xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq);
6181 if (xritag != sglq->sli4_xritag)
6185 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6188 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
6189 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
6191 * For FCP command IOCB, get a new WQ index to distribute
6192 * WQE across the WQsr. On the other hand, for abort IOCB,
6193 * it carries the same WQ index to the original command
6196 if (piocb->iocb_flag & LPFC_IO_FCP)
6197 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
6198 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
6202 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6205 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6211 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6213 * This routine wraps the actual lockless version for issusing IOCB function
6214 * pointer from the lpfc_hba struct.
6217 * IOCB_ERROR - Error
6218 * IOCB_SUCCESS - Success
6222 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6223 struct lpfc_iocbq *piocb, uint32_t flag)
6225 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6229 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6230 * @phba: The hba struct for which this call is being executed.
6231 * @dev_grp: The HBA PCI-Device group number.
6233 * This routine sets up the SLI interface API function jump table in @phba
6235 * Returns: 0 - success, -ENODEV - failure.
6238 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6242 case LPFC_PCI_DEV_LP:
6243 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6244 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6246 case LPFC_PCI_DEV_OC:
6247 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6248 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6252 "1419 Invalid HBA PCI-device group: 0x%x\n",
6257 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6262 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6263 * @phba: Pointer to HBA context object.
6264 * @pring: Pointer to driver SLI ring object.
6265 * @piocb: Pointer to command iocb.
6266 * @flag: Flag indicating if this command can be put into txq.
6268 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6269 * function. This function gets the hbalock and calls
6270 * __lpfc_sli_issue_iocb function and will return the error returned
6271 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6272 * functions which do not hold hbalock.
6275 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6276 struct lpfc_iocbq *piocb, uint32_t flag)
6278 unsigned long iflags;
6281 spin_lock_irqsave(&phba->hbalock, iflags);
6282 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6283 spin_unlock_irqrestore(&phba->hbalock, iflags);
6289 * lpfc_extra_ring_setup - Extra ring setup function
6290 * @phba: Pointer to HBA context object.
6292 * This function is called while driver attaches with the
6293 * HBA to setup the extra ring. The extra ring is used
6294 * only when driver needs to support target mode functionality
6295 * or IP over FC functionalities.
6297 * This function is called with no lock held.
6300 lpfc_extra_ring_setup( struct lpfc_hba *phba)
6302 struct lpfc_sli *psli;
6303 struct lpfc_sli_ring *pring;
6307 /* Adjust cmd/rsp ring iocb entries more evenly */
6309 /* Take some away from the FCP ring */
6310 pring = &psli->ring[psli->fcp_ring];
6311 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6312 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6313 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6314 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6316 /* and give them to the extra ring */
6317 pring = &psli->ring[psli->extra_ring];
6319 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6320 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6321 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6322 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6324 /* Setup default profile for this ring */
6325 pring->iotag_max = 4096;
6326 pring->num_mask = 1;
6327 pring->prt[0].profile = 0; /* Mask 0 */
6328 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6329 pring->prt[0].type = phba->cfg_multi_ring_type;
6330 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6335 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6336 * @phba: Pointer to HBA context object.
6337 * @pring: Pointer to driver SLI ring object.
6338 * @iocbq: Pointer to iocb object.
6340 * This function is called by the slow ring event handler
6341 * function when there is an ASYNC event iocb in the ring.
6342 * This function is called with no lock held.
6343 * Currently this function handles only temperature related
6344 * ASYNC events. The function decodes the temperature sensor
6345 * event message and posts events for the management applications.
6348 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6349 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6354 struct temp_event temp_event_data;
6355 struct Scsi_Host *shost;
6358 icmd = &iocbq->iocb;
6359 evt_code = icmd->un.asyncstat.evt_code;
6360 temp = icmd->ulpContext;
6362 if ((evt_code != ASYNC_TEMP_WARN) &&
6363 (evt_code != ASYNC_TEMP_SAFE)) {
6364 iocb_w = (uint32_t *) icmd;
6365 lpfc_printf_log(phba,
6368 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6370 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6371 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6372 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6373 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6375 icmd->un.asyncstat.evt_code,
6376 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6377 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6378 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6379 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6383 temp_event_data.data = (uint32_t)temp;
6384 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6385 if (evt_code == ASYNC_TEMP_WARN) {
6386 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6387 lpfc_printf_log(phba,
6390 "0347 Adapter is very hot, please take "
6391 "corrective action. temperature : %d Celsius\n",
6394 if (evt_code == ASYNC_TEMP_SAFE) {
6395 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6396 lpfc_printf_log(phba,
6399 "0340 Adapter temperature is OK now. "
6400 "temperature : %d Celsius\n",
6404 /* Send temperature change event to applications */
6405 shost = lpfc_shost_from_vport(phba->pport);
6406 fc_host_post_vendor_event(shost, fc_get_event_number(),
6407 sizeof(temp_event_data), (char *) &temp_event_data,
6414 * lpfc_sli_setup - SLI ring setup function
6415 * @phba: Pointer to HBA context object.
6417 * lpfc_sli_setup sets up rings of the SLI interface with
6418 * number of iocbs per ring and iotags. This function is
6419 * called while driver attach to the HBA and before the
6420 * interrupts are enabled. So there is no need for locking.
6422 * This function always returns 0.
6425 lpfc_sli_setup(struct lpfc_hba *phba)
6427 int i, totiocbsize = 0;
6428 struct lpfc_sli *psli = &phba->sli;
6429 struct lpfc_sli_ring *pring;
6431 psli->num_rings = MAX_CONFIGURED_RINGS;
6433 psli->fcp_ring = LPFC_FCP_RING;
6434 psli->next_ring = LPFC_FCP_NEXT_RING;
6435 psli->extra_ring = LPFC_EXTRA_RING;
6437 psli->iocbq_lookup = NULL;
6438 psli->iocbq_lookup_len = 0;
6439 psli->last_iotag = 0;
6441 for (i = 0; i < psli->num_rings; i++) {
6442 pring = &psli->ring[i];
6444 case LPFC_FCP_RING: /* ring 0 - FCP */
6445 /* numCiocb and numRiocb are used in config_port */
6446 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
6447 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
6448 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6449 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6450 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6451 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6452 pring->sizeCiocb = (phba->sli_rev == 3) ?
6453 SLI3_IOCB_CMD_SIZE :
6455 pring->sizeRiocb = (phba->sli_rev == 3) ?
6456 SLI3_IOCB_RSP_SIZE :
6458 pring->iotag_ctr = 0;
6460 (phba->cfg_hba_queue_depth * 2);
6461 pring->fast_iotag = pring->iotag_max;
6462 pring->num_mask = 0;
6464 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
6465 /* numCiocb and numRiocb are used in config_port */
6466 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
6467 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
6468 pring->sizeCiocb = (phba->sli_rev == 3) ?
6469 SLI3_IOCB_CMD_SIZE :
6471 pring->sizeRiocb = (phba->sli_rev == 3) ?
6472 SLI3_IOCB_RSP_SIZE :
6474 pring->iotag_max = phba->cfg_hba_queue_depth;
6475 pring->num_mask = 0;
6477 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
6478 /* numCiocb and numRiocb are used in config_port */
6479 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
6480 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
6481 pring->sizeCiocb = (phba->sli_rev == 3) ?
6482 SLI3_IOCB_CMD_SIZE :
6484 pring->sizeRiocb = (phba->sli_rev == 3) ?
6485 SLI3_IOCB_RSP_SIZE :
6487 pring->fast_iotag = 0;
6488 pring->iotag_ctr = 0;
6489 pring->iotag_max = 4096;
6490 pring->lpfc_sli_rcv_async_status =
6491 lpfc_sli_async_event_handler;
6492 pring->num_mask = LPFC_MAX_RING_MASK;
6493 pring->prt[0].profile = 0; /* Mask 0 */
6494 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
6495 pring->prt[0].type = FC_TYPE_ELS;
6496 pring->prt[0].lpfc_sli_rcv_unsol_event =
6497 lpfc_els_unsol_event;
6498 pring->prt[1].profile = 0; /* Mask 1 */
6499 pring->prt[1].rctl = FC_RCTL_ELS_REP;
6500 pring->prt[1].type = FC_TYPE_ELS;
6501 pring->prt[1].lpfc_sli_rcv_unsol_event =
6502 lpfc_els_unsol_event;
6503 pring->prt[2].profile = 0; /* Mask 2 */
6504 /* NameServer Inquiry */
6505 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
6507 pring->prt[2].type = FC_TYPE_CT;
6508 pring->prt[2].lpfc_sli_rcv_unsol_event =
6509 lpfc_ct_unsol_event;
6510 pring->prt[3].profile = 0; /* Mask 3 */
6511 /* NameServer response */
6512 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
6514 pring->prt[3].type = FC_TYPE_CT;
6515 pring->prt[3].lpfc_sli_rcv_unsol_event =
6516 lpfc_ct_unsol_event;
6517 /* abort unsolicited sequence */
6518 pring->prt[4].profile = 0; /* Mask 4 */
6519 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
6520 pring->prt[4].type = FC_TYPE_BLS;
6521 pring->prt[4].lpfc_sli_rcv_unsol_event =
6522 lpfc_sli4_ct_abort_unsol_event;
6525 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
6526 (pring->numRiocb * pring->sizeRiocb);
6528 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
6529 /* Too many cmd / rsp ring entries in SLI2 SLIM */
6530 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
6531 "SLI2 SLIM Data: x%x x%lx\n",
6532 phba->brd_no, totiocbsize,
6533 (unsigned long) MAX_SLIM_IOCB_SIZE);
6535 if (phba->cfg_multi_ring_support == 2)
6536 lpfc_extra_ring_setup(phba);
6542 * lpfc_sli_queue_setup - Queue initialization function
6543 * @phba: Pointer to HBA context object.
6545 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6546 * ring. This function also initializes ring indices of each ring.
6547 * This function is called during the initialization of the SLI
6548 * interface of an HBA.
6549 * This function is called with no lock held and always returns
6553 lpfc_sli_queue_setup(struct lpfc_hba *phba)
6555 struct lpfc_sli *psli;
6556 struct lpfc_sli_ring *pring;
6560 spin_lock_irq(&phba->hbalock);
6561 INIT_LIST_HEAD(&psli->mboxq);
6562 INIT_LIST_HEAD(&psli->mboxq_cmpl);
6563 /* Initialize list headers for txq and txcmplq as double linked lists */
6564 for (i = 0; i < psli->num_rings; i++) {
6565 pring = &psli->ring[i];
6567 pring->next_cmdidx = 0;
6568 pring->local_getidx = 0;
6570 INIT_LIST_HEAD(&pring->txq);
6571 INIT_LIST_HEAD(&pring->txcmplq);
6572 INIT_LIST_HEAD(&pring->iocb_continueq);
6573 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
6574 INIT_LIST_HEAD(&pring->postbufq);
6576 spin_unlock_irq(&phba->hbalock);
6581 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6582 * @phba: Pointer to HBA context object.
6584 * This routine flushes the mailbox command subsystem. It will unconditionally
6585 * flush all the mailbox commands in the three possible stages in the mailbox
6586 * command sub-system: pending mailbox command queue; the outstanding mailbox
6587 * command; and completed mailbox command queue. It is caller's responsibility
6588 * to make sure that the driver is in the proper state to flush the mailbox
6589 * command sub-system. Namely, the posting of mailbox commands into the
6590 * pending mailbox command queue from the various clients must be stopped;
6591 * either the HBA is in a state that it will never works on the outstanding
6592 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6593 * mailbox command has been completed.
6596 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
6598 LIST_HEAD(completions);
6599 struct lpfc_sli *psli = &phba->sli;
6601 unsigned long iflag;
6603 /* Flush all the mailbox commands in the mbox system */
6604 spin_lock_irqsave(&phba->hbalock, iflag);
6605 /* The pending mailbox command queue */
6606 list_splice_init(&phba->sli.mboxq, &completions);
6607 /* The outstanding active mailbox command */
6608 if (psli->mbox_active) {
6609 list_add_tail(&psli->mbox_active->list, &completions);
6610 psli->mbox_active = NULL;
6611 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6613 /* The completed mailbox command queue */
6614 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
6615 spin_unlock_irqrestore(&phba->hbalock, iflag);
6617 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6618 while (!list_empty(&completions)) {
6619 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
6620 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
6622 pmb->mbox_cmpl(phba, pmb);
6627 * lpfc_sli_host_down - Vport cleanup function
6628 * @vport: Pointer to virtual port object.
6630 * lpfc_sli_host_down is called to clean up the resources
6631 * associated with a vport before destroying virtual
6632 * port data structures.
6633 * This function does following operations:
6634 * - Free discovery resources associated with this virtual
6636 * - Free iocbs associated with this virtual port in
6638 * - Send abort for all iocb commands associated with this
6641 * This function is called with no lock held and always returns 1.
6644 lpfc_sli_host_down(struct lpfc_vport *vport)
6646 LIST_HEAD(completions);
6647 struct lpfc_hba *phba = vport->phba;
6648 struct lpfc_sli *psli = &phba->sli;
6649 struct lpfc_sli_ring *pring;
6650 struct lpfc_iocbq *iocb, *next_iocb;
6652 unsigned long flags = 0;
6653 uint16_t prev_pring_flag;
6655 lpfc_cleanup_discovery_resources(vport);
6657 spin_lock_irqsave(&phba->hbalock, flags);
6658 for (i = 0; i < psli->num_rings; i++) {
6659 pring = &psli->ring[i];
6660 prev_pring_flag = pring->flag;
6661 /* Only slow rings */
6662 if (pring->ringno == LPFC_ELS_RING) {
6663 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6664 /* Set the lpfc data pending flag */
6665 set_bit(LPFC_DATA_READY, &phba->data_flags);
6668 * Error everything on the txq since these iocbs have not been
6669 * given to the FW yet.
6671 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6672 if (iocb->vport != vport)
6674 list_move_tail(&iocb->list, &completions);
6678 /* Next issue ABTS for everything on the txcmplq */
6679 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
6681 if (iocb->vport != vport)
6683 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
6686 pring->flag = prev_pring_flag;
6689 spin_unlock_irqrestore(&phba->hbalock, flags);
6691 /* Cancel all the IOCBs from the completions list */
6692 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6698 * lpfc_sli_hba_down - Resource cleanup function for the HBA
6699 * @phba: Pointer to HBA context object.
6701 * This function cleans up all iocb, buffers, mailbox commands
6702 * while shutting down the HBA. This function is called with no
6703 * lock held and always returns 1.
6704 * This function does the following to cleanup driver resources:
6705 * - Free discovery resources for each virtual port
6706 * - Cleanup any pending fabric iocbs
6707 * - Iterate through the iocb txq and free each entry
6709 * - Free up any buffer posted to the HBA
6710 * - Free mailbox commands in the mailbox queue.
6713 lpfc_sli_hba_down(struct lpfc_hba *phba)
6715 LIST_HEAD(completions);
6716 struct lpfc_sli *psli = &phba->sli;
6717 struct lpfc_sli_ring *pring;
6718 struct lpfc_dmabuf *buf_ptr;
6719 unsigned long flags = 0;
6722 /* Shutdown the mailbox command sub-system */
6723 lpfc_sli_mbox_sys_shutdown(phba);
6725 lpfc_hba_down_prep(phba);
6727 lpfc_fabric_abort_hba(phba);
6729 spin_lock_irqsave(&phba->hbalock, flags);
6730 for (i = 0; i < psli->num_rings; i++) {
6731 pring = &psli->ring[i];
6732 /* Only slow rings */
6733 if (pring->ringno == LPFC_ELS_RING) {
6734 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6735 /* Set the lpfc data pending flag */
6736 set_bit(LPFC_DATA_READY, &phba->data_flags);
6740 * Error everything on the txq since these iocbs have not been
6741 * given to the FW yet.
6743 list_splice_init(&pring->txq, &completions);
6747 spin_unlock_irqrestore(&phba->hbalock, flags);
6749 /* Cancel all the IOCBs from the completions list */
6750 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6753 spin_lock_irqsave(&phba->hbalock, flags);
6754 list_splice_init(&phba->elsbuf, &completions);
6755 phba->elsbuf_cnt = 0;
6756 phba->elsbuf_prev_cnt = 0;
6757 spin_unlock_irqrestore(&phba->hbalock, flags);
6759 while (!list_empty(&completions)) {
6760 list_remove_head(&completions, buf_ptr,
6761 struct lpfc_dmabuf, list);
6762 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
6766 /* Return any active mbox cmds */
6767 del_timer_sync(&psli->mbox_tmo);
6769 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
6770 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6771 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
6777 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6778 * @phba: Pointer to HBA context object.
6780 * This function cleans up all queues, iocb, buffers, mailbox commands while
6781 * shutting down the SLI4 HBA FCoE function. This function is called with no
6782 * lock held and always returns 1.
6784 * This function does the following to cleanup driver FCoE function resources:
6785 * - Free discovery resources for each virtual port
6786 * - Cleanup any pending fabric iocbs
6787 * - Iterate through the iocb txq and free each entry in the list.
6788 * - Free up any buffer posted to the HBA.
6789 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6790 * - Free mailbox commands in the mailbox queue.
6793 lpfc_sli4_hba_down(struct lpfc_hba *phba)
6795 /* Stop the SLI4 device port */
6796 lpfc_stop_port(phba);
6798 /* Tear down the queues in the HBA */
6799 lpfc_sli4_queue_unset(phba);
6801 /* unregister default FCFI from the HBA */
6802 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
6808 * lpfc_sli_pcimem_bcopy - SLI memory copy function
6809 * @srcp: Source memory pointer.
6810 * @destp: Destination memory pointer.
6811 * @cnt: Number of words required to be copied.
6813 * This function is used for copying data between driver memory
6814 * and the SLI memory. This function also changes the endianness
6815 * of each word if native endianness is different from SLI
6816 * endianness. This function can be called with or without
6820 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
6822 uint32_t *src = srcp;
6823 uint32_t *dest = destp;
6827 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
6829 ldata = le32_to_cpu(ldata);
6838 * lpfc_sli_bemem_bcopy - SLI memory copy function
6839 * @srcp: Source memory pointer.
6840 * @destp: Destination memory pointer.
6841 * @cnt: Number of words required to be copied.
6843 * This function is used for copying data between a data structure
6844 * with big endian representation to local endianness.
6845 * This function can be called with or without lock.
6848 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
6850 uint32_t *src = srcp;
6851 uint32_t *dest = destp;
6855 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
6857 ldata = be32_to_cpu(ldata);
6865 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
6866 * @phba: Pointer to HBA context object.
6867 * @pring: Pointer to driver SLI ring object.
6868 * @mp: Pointer to driver buffer object.
6870 * This function is called with no lock held.
6871 * It always return zero after adding the buffer to the postbufq
6875 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6876 struct lpfc_dmabuf *mp)
6878 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
6880 spin_lock_irq(&phba->hbalock);
6881 list_add_tail(&mp->list, &pring->postbufq);
6882 pring->postbufq_cnt++;
6883 spin_unlock_irq(&phba->hbalock);
6888 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
6889 * @phba: Pointer to HBA context object.
6891 * When HBQ is enabled, buffers are searched based on tags. This function
6892 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
6893 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
6894 * does not conflict with tags of buffer posted for unsolicited events.
6895 * The function returns the allocated tag. The function is called with
6899 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
6901 spin_lock_irq(&phba->hbalock);
6902 phba->buffer_tag_count++;
6904 * Always set the QUE_BUFTAG_BIT to distiguish between
6905 * a tag assigned by HBQ.
6907 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
6908 spin_unlock_irq(&phba->hbalock);
6909 return phba->buffer_tag_count;
6913 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
6914 * @phba: Pointer to HBA context object.
6915 * @pring: Pointer to driver SLI ring object.
6918 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
6919 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
6920 * iocb is posted to the response ring with the tag of the buffer.
6921 * This function searches the pring->postbufq list using the tag
6922 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
6923 * iocb. If the buffer is found then lpfc_dmabuf object of the
6924 * buffer is returned to the caller else NULL is returned.
6925 * This function is called with no lock held.
6927 struct lpfc_dmabuf *
6928 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6931 struct lpfc_dmabuf *mp, *next_mp;
6932 struct list_head *slp = &pring->postbufq;
6934 /* Search postbufq, from the begining, looking for a match on tag */
6935 spin_lock_irq(&phba->hbalock);
6936 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6937 if (mp->buffer_tag == tag) {
6938 list_del_init(&mp->list);
6939 pring->postbufq_cnt--;
6940 spin_unlock_irq(&phba->hbalock);
6945 spin_unlock_irq(&phba->hbalock);
6946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6947 "0402 Cannot find virtual addr for buffer tag on "
6948 "ring %d Data x%lx x%p x%p x%x\n",
6949 pring->ringno, (unsigned long) tag,
6950 slp->next, slp->prev, pring->postbufq_cnt);
6956 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
6957 * @phba: Pointer to HBA context object.
6958 * @pring: Pointer to driver SLI ring object.
6959 * @phys: DMA address of the buffer.
6961 * This function searches the buffer list using the dma_address
6962 * of unsolicited event to find the driver's lpfc_dmabuf object
6963 * corresponding to the dma_address. The function returns the
6964 * lpfc_dmabuf object if a buffer is found else it returns NULL.
6965 * This function is called by the ct and els unsolicited event
6966 * handlers to get the buffer associated with the unsolicited
6969 * This function is called with no lock held.
6971 struct lpfc_dmabuf *
6972 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6975 struct lpfc_dmabuf *mp, *next_mp;
6976 struct list_head *slp = &pring->postbufq;
6978 /* Search postbufq, from the begining, looking for a match on phys */
6979 spin_lock_irq(&phba->hbalock);
6980 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6981 if (mp->phys == phys) {
6982 list_del_init(&mp->list);
6983 pring->postbufq_cnt--;
6984 spin_unlock_irq(&phba->hbalock);
6989 spin_unlock_irq(&phba->hbalock);
6990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6991 "0410 Cannot find virtual addr for mapped buf on "
6992 "ring %d Data x%llx x%p x%p x%x\n",
6993 pring->ringno, (unsigned long long)phys,
6994 slp->next, slp->prev, pring->postbufq_cnt);
6999 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
7000 * @phba: Pointer to HBA context object.
7001 * @cmdiocb: Pointer to driver command iocb object.
7002 * @rspiocb: Pointer to driver response iocb object.
7004 * This function is the completion handler for the abort iocbs for
7005 * ELS commands. This function is called from the ELS ring event
7006 * handler with no lock held. This function frees memory resources
7007 * associated with the abort iocb.
7010 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7011 struct lpfc_iocbq *rspiocb)
7013 IOCB_t *irsp = &rspiocb->iocb;
7014 uint16_t abort_iotag, abort_context;
7015 struct lpfc_iocbq *abort_iocb;
7016 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7020 if (irsp->ulpStatus) {
7021 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
7022 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
7024 spin_lock_irq(&phba->hbalock);
7025 if (phba->sli_rev < LPFC_SLI_REV4) {
7026 if (abort_iotag != 0 &&
7027 abort_iotag <= phba->sli.last_iotag)
7029 phba->sli.iocbq_lookup[abort_iotag];
7031 /* For sli4 the abort_tag is the XRI,
7032 * so the abort routine puts the iotag of the iocb
7033 * being aborted in the context field of the abort
7036 abort_iocb = phba->sli.iocbq_lookup[abort_context];
7038 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI,
7039 "0327 Cannot abort els iocb %p "
7040 "with tag %x context %x, abort status %x, "
7042 abort_iocb, abort_iotag, abort_context,
7043 irsp->ulpStatus, irsp->un.ulpWord[4]);
7046 * If the iocb is not found in Firmware queue the iocb
7047 * might have completed already. Do not free it again.
7049 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
7050 if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
7051 spin_unlock_irq(&phba->hbalock);
7052 lpfc_sli_release_iocbq(phba, cmdiocb);
7055 /* For SLI4 the ulpContext field for abort IOCB
7056 * holds the iotag of the IOCB being aborted so
7057 * the local abort_context needs to be reset to
7058 * match the aborted IOCBs ulpContext.
7060 if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
7061 abort_context = abort_iocb->iocb.ulpContext;
7064 * make sure we have the right iocbq before taking it
7065 * off the txcmplq and try to call completion routine.
7068 abort_iocb->iocb.ulpContext != abort_context ||
7069 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
7070 spin_unlock_irq(&phba->hbalock);
7071 else if (phba->sli_rev < LPFC_SLI_REV4) {
7073 * leave the SLI4 aborted command on the txcmplq
7074 * list and the command complete WCQE's XB bit
7075 * will tell whether the SGL (XRI) can be released
7076 * immediately or to the aborted SGL list for the
7077 * following abort XRI from the HBA.
7079 list_del_init(&abort_iocb->list);
7080 pring->txcmplq_cnt--;
7081 spin_unlock_irq(&phba->hbalock);
7083 /* Firmware could still be in progress of DMAing
7084 * payload, so don't free data buffer till after
7087 spin_lock_irq(&phba->hbalock);
7088 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
7089 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
7090 spin_unlock_irq(&phba->hbalock);
7092 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
7093 abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
7094 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
7098 lpfc_sli_release_iocbq(phba, cmdiocb);
7103 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7104 * @phba: Pointer to HBA context object.
7105 * @cmdiocb: Pointer to driver command iocb object.
7106 * @rspiocb: Pointer to driver response iocb object.
7108 * The function is called from SLI ring event handler with no
7109 * lock held. This function is the completion handler for ELS commands
7110 * which are aborted. The function frees memory resources used for
7111 * the aborted ELS commands.
7114 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7115 struct lpfc_iocbq *rspiocb)
7117 IOCB_t *irsp = &rspiocb->iocb;
7119 /* ELS cmd tag <ulpIoTag> completes */
7120 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
7121 "0139 Ignoring ELS cmd tag x%x completion Data: "
7123 irsp->ulpIoTag, irsp->ulpStatus,
7124 irsp->un.ulpWord[4], irsp->ulpTimeout);
7125 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7126 lpfc_ct_free_iocb(phba, cmdiocb);
7128 lpfc_els_free_iocb(phba, cmdiocb);
7133 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7134 * @phba: Pointer to HBA context object.
7135 * @pring: Pointer to driver SLI ring object.
7136 * @cmdiocb: Pointer to driver command iocb object.
7138 * This function issues an abort iocb for the provided command
7139 * iocb. This function is called with hbalock held.
7140 * The function returns 0 when it fails due to memory allocation
7141 * failure or when the command iocb is an abort request.
7144 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7145 struct lpfc_iocbq *cmdiocb)
7147 struct lpfc_vport *vport = cmdiocb->vport;
7148 struct lpfc_iocbq *abtsiocbp;
7149 IOCB_t *icmd = NULL;
7150 IOCB_t *iabt = NULL;
7151 int retval = IOCB_ERROR;
7154 * There are certain command types we don't want to abort. And we
7155 * don't want to abort commands that are already in the process of
7158 icmd = &cmdiocb->iocb;
7159 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
7160 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7161 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
7164 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7165 * callback so that nothing happens when it finishes.
7167 if ((vport->load_flag & FC_UNLOADING) &&
7168 (pring->ringno == LPFC_ELS_RING)) {
7169 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7170 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7172 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
7173 goto abort_iotag_exit;
7176 /* issue ABTS for this IOCB based on iotag */
7177 abtsiocbp = __lpfc_sli_get_iocbq(phba);
7178 if (abtsiocbp == NULL)
7181 /* This signals the response to set the correct status
7182 * before calling the completion handler
7184 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7186 iabt = &abtsiocbp->iocb;
7187 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7188 iabt->un.acxri.abortContextTag = icmd->ulpContext;
7189 if (phba->sli_rev == LPFC_SLI_REV4) {
7190 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
7191 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
7194 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
7196 iabt->ulpClass = icmd->ulpClass;
7198 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7199 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
7200 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
7201 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
7203 if (phba->link_state >= LPFC_LINK_UP)
7204 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7206 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7208 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
7210 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7211 "0339 Abort xri x%x, original iotag x%x, "
7212 "abort cmd iotag x%x\n",
7213 iabt->un.acxri.abortContextTag,
7214 iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
7215 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
7218 __lpfc_sli_release_iocbq(phba, abtsiocbp);
7221 * Caller to this routine should check for IOCB_ERROR
7222 * and handle it properly. This routine no longer removes
7223 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7229 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7230 * @iocbq: Pointer to driver iocb object.
7231 * @vport: Pointer to driver virtual port object.
7232 * @tgt_id: SCSI ID of the target.
7233 * @lun_id: LUN ID of the scsi device.
7234 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7236 * This function acts as an iocb filter for functions which abort or count
7237 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7238 * 0 if the filtering criteria is met for the given iocb and will return
7239 * 1 if the filtering criteria is not met.
7240 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7241 * given iocb is for the SCSI device specified by vport, tgt_id and
7243 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7244 * given iocb is for the SCSI target specified by vport and tgt_id
7246 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7247 * given iocb is for the SCSI host associated with the given vport.
7248 * This function is called with no locks held.
7251 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7252 uint16_t tgt_id, uint64_t lun_id,
7253 lpfc_ctx_cmd ctx_cmd)
7255 struct lpfc_scsi_buf *lpfc_cmd;
7258 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7261 if (iocbq->vport != vport)
7264 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
7266 if (lpfc_cmd->pCmd == NULL)
7271 if ((lpfc_cmd->rdata->pnode) &&
7272 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7273 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
7277 if ((lpfc_cmd->rdata->pnode) &&
7278 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
7285 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
7294 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7295 * @vport: Pointer to virtual port.
7296 * @tgt_id: SCSI ID of the target.
7297 * @lun_id: LUN ID of the scsi device.
7298 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7300 * This function returns number of FCP commands pending for the vport.
7301 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7302 * commands pending on the vport associated with SCSI device specified
7303 * by tgt_id and lun_id parameters.
7304 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7305 * commands pending on the vport associated with SCSI target specified
7306 * by tgt_id parameter.
7307 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7308 * commands pending on the vport.
7309 * This function returns the number of iocbs which satisfy the filter.
7310 * This function is called without any lock held.
7313 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7314 lpfc_ctx_cmd ctx_cmd)
7316 struct lpfc_hba *phba = vport->phba;
7317 struct lpfc_iocbq *iocbq;
7320 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7321 iocbq = phba->sli.iocbq_lookup[i];
7323 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7332 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7333 * @phba: Pointer to HBA context object
7334 * @cmdiocb: Pointer to command iocb object.
7335 * @rspiocb: Pointer to response iocb object.
7337 * This function is called when an aborted FCP iocb completes. This
7338 * function is called by the ring event handler with no lock held.
7339 * This function frees the iocb.
7342 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7343 struct lpfc_iocbq *rspiocb)
7345 lpfc_sli_release_iocbq(phba, cmdiocb);
7350 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7351 * @vport: Pointer to virtual port.
7352 * @pring: Pointer to driver SLI ring object.
7353 * @tgt_id: SCSI ID of the target.
7354 * @lun_id: LUN ID of the scsi device.
7355 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7357 * This function sends an abort command for every SCSI command
7358 * associated with the given virtual port pending on the ring
7359 * filtered by lpfc_sli_validate_fcp_iocb function.
7360 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7361 * FCP iocbs associated with lun specified by tgt_id and lun_id
7363 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7364 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7365 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7366 * FCP iocbs associated with virtual port.
7367 * This function returns number of iocbs it failed to abort.
7368 * This function is called with no locks held.
7371 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
7372 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
7374 struct lpfc_hba *phba = vport->phba;
7375 struct lpfc_iocbq *iocbq;
7376 struct lpfc_iocbq *abtsiocb;
7378 int errcnt = 0, ret_val = 0;
7381 for (i = 1; i <= phba->sli.last_iotag; i++) {
7382 iocbq = phba->sli.iocbq_lookup[i];
7384 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
7388 /* issue ABTS for this IOCB based on iotag */
7389 abtsiocb = lpfc_sli_get_iocbq(phba);
7390 if (abtsiocb == NULL) {
7396 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
7397 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
7398 if (phba->sli_rev == LPFC_SLI_REV4)
7399 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
7401 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
7402 abtsiocb->iocb.ulpLe = 1;
7403 abtsiocb->iocb.ulpClass = cmd->ulpClass;
7404 abtsiocb->vport = phba->pport;
7406 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7407 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
7408 if (iocbq->iocb_flag & LPFC_IO_FCP)
7409 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
7411 if (lpfc_is_link_up(phba))
7412 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
7414 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
7416 /* Setup callback routine and issue the command. */
7417 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
7418 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
7420 if (ret_val == IOCB_ERROR) {
7421 lpfc_sli_release_iocbq(phba, abtsiocb);
7431 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
7432 * @phba: Pointer to HBA context object.
7433 * @cmdiocbq: Pointer to command iocb.
7434 * @rspiocbq: Pointer to response iocb.
7436 * This function is the completion handler for iocbs issued using
7437 * lpfc_sli_issue_iocb_wait function. This function is called by the
7438 * ring event handler function without any lock held. This function
7439 * can be called from both worker thread context and interrupt
7440 * context. This function also can be called from other thread which
7441 * cleans up the SLI layer objects.
7442 * This function copy the contents of the response iocb to the
7443 * response iocb memory object provided by the caller of
7444 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7445 * sleeps for the iocb completion.
7448 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
7449 struct lpfc_iocbq *cmdiocbq,
7450 struct lpfc_iocbq *rspiocbq)
7452 wait_queue_head_t *pdone_q;
7453 unsigned long iflags;
7455 spin_lock_irqsave(&phba->hbalock, iflags);
7456 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
7457 if (cmdiocbq->context2 && rspiocbq)
7458 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
7459 &rspiocbq->iocb, sizeof(IOCB_t));
7461 pdone_q = cmdiocbq->context_un.wait_queue;
7464 spin_unlock_irqrestore(&phba->hbalock, iflags);
7469 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7470 * @phba: Pointer to HBA context object..
7471 * @piocbq: Pointer to command iocb.
7472 * @flag: Flag to test.
7474 * This routine grabs the hbalock and then test the iocb_flag to
7475 * see if the passed in flag is set.
7478 * 0 if flag is not set.
7481 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
7482 struct lpfc_iocbq *piocbq, uint32_t flag)
7484 unsigned long iflags;
7487 spin_lock_irqsave(&phba->hbalock, iflags);
7488 ret = piocbq->iocb_flag & flag;
7489 spin_unlock_irqrestore(&phba->hbalock, iflags);
7495 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
7496 * @phba: Pointer to HBA context object..
7497 * @pring: Pointer to sli ring.
7498 * @piocb: Pointer to command iocb.
7499 * @prspiocbq: Pointer to response iocb.
7500 * @timeout: Timeout in number of seconds.
7502 * This function issues the iocb to firmware and waits for the
7503 * iocb to complete. If the iocb command is not
7504 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7505 * Caller should not free the iocb resources if this function
7506 * returns IOCB_TIMEDOUT.
7507 * The function waits for the iocb completion using an
7508 * non-interruptible wait.
7509 * This function will sleep while waiting for iocb completion.
7510 * So, this function should not be called from any context which
7511 * does not allow sleeping. Due to the same reason, this function
7512 * cannot be called with interrupt disabled.
7513 * This function assumes that the iocb completions occur while
7514 * this function sleep. So, this function cannot be called from
7515 * the thread which process iocb completion for this ring.
7516 * This function clears the iocb_flag of the iocb object before
7517 * issuing the iocb and the iocb completion handler sets this
7518 * flag and wakes this thread when the iocb completes.
7519 * The contents of the response iocb will be copied to prspiocbq
7520 * by the completion handler when the command completes.
7521 * This function returns IOCB_SUCCESS when success.
7522 * This function is called with no lock held.
7525 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
7526 uint32_t ring_number,
7527 struct lpfc_iocbq *piocb,
7528 struct lpfc_iocbq *prspiocbq,
7531 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7532 long timeleft, timeout_req = 0;
7533 int retval = IOCB_SUCCESS;
7537 * If the caller has provided a response iocbq buffer, then context2
7538 * is NULL or its an error.
7541 if (piocb->context2)
7543 piocb->context2 = prspiocbq;
7546 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
7547 piocb->context_un.wait_queue = &done_q;
7548 piocb->iocb_flag &= ~LPFC_IO_WAKE;
7550 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7551 creg_val = readl(phba->HCregaddr);
7552 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
7553 writel(creg_val, phba->HCregaddr);
7554 readl(phba->HCregaddr); /* flush */
7557 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0);
7558 if (retval == IOCB_SUCCESS) {
7559 timeout_req = timeout * HZ;
7560 timeleft = wait_event_timeout(done_q,
7561 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
7564 if (piocb->iocb_flag & LPFC_IO_WAKE) {
7565 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7566 "0331 IOCB wake signaled\n");
7567 } else if (timeleft == 0) {
7568 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7569 "0338 IOCB wait timeout error - no "
7570 "wake response Data x%x\n", timeout);
7571 retval = IOCB_TIMEDOUT;
7573 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7574 "0330 IOCB wake NOT set, "
7576 timeout, (timeleft / jiffies));
7577 retval = IOCB_TIMEDOUT;
7580 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7581 "0332 IOCB wait issue failed, Data x%x\n",
7583 retval = IOCB_ERROR;
7586 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7587 creg_val = readl(phba->HCregaddr);
7588 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
7589 writel(creg_val, phba->HCregaddr);
7590 readl(phba->HCregaddr); /* flush */
7594 piocb->context2 = NULL;
7596 piocb->context_un.wait_queue = NULL;
7597 piocb->iocb_cmpl = NULL;
7602 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
7603 * @phba: Pointer to HBA context object.
7604 * @pmboxq: Pointer to driver mailbox object.
7605 * @timeout: Timeout in number of seconds.
7607 * This function issues the mailbox to firmware and waits for the
7608 * mailbox command to complete. If the mailbox command is not
7609 * completed within timeout seconds, it returns MBX_TIMEOUT.
7610 * The function waits for the mailbox completion using an
7611 * interruptible wait. If the thread is woken up due to a
7612 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7613 * should not free the mailbox resources, if this function returns
7615 * This function will sleep while waiting for mailbox completion.
7616 * So, this function should not be called from any context which
7617 * does not allow sleeping. Due to the same reason, this function
7618 * cannot be called with interrupt disabled.
7619 * This function assumes that the mailbox completion occurs while
7620 * this function sleep. So, this function cannot be called from
7621 * the worker thread which processes mailbox completion.
7622 * This function is called in the context of HBA management
7624 * This function returns MBX_SUCCESS when successful.
7625 * This function is called with no lock held.
7628 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
7631 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7635 /* The caller must leave context1 empty. */
7636 if (pmboxq->context1)
7637 return MBX_NOT_FINISHED;
7639 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
7640 /* setup wake call as IOCB callback */
7641 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
7642 /* setup context field to pass wait_queue pointer to wake function */
7643 pmboxq->context1 = &done_q;
7645 /* now issue the command */
7646 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
7648 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
7649 wait_event_interruptible_timeout(done_q,
7650 pmboxq->mbox_flag & LPFC_MBX_WAKE,
7653 spin_lock_irqsave(&phba->hbalock, flag);
7654 pmboxq->context1 = NULL;
7656 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7657 * else do not free the resources.
7659 if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
7660 retval = MBX_SUCCESS;
7662 retval = MBX_TIMEOUT;
7663 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7665 spin_unlock_irqrestore(&phba->hbalock, flag);
7672 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
7673 * @phba: Pointer to HBA context.
7675 * This function is called to shutdown the driver's mailbox sub-system.
7676 * It first marks the mailbox sub-system is in a block state to prevent
7677 * the asynchronous mailbox command from issued off the pending mailbox
7678 * command queue. If the mailbox command sub-system shutdown is due to
7679 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7680 * the mailbox sub-system flush routine to forcefully bring down the
7681 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7682 * as with offline or HBA function reset), this routine will wait for the
7683 * outstanding mailbox command to complete before invoking the mailbox
7684 * sub-system flush routine to gracefully bring down mailbox sub-system.
7687 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
7689 struct lpfc_sli *psli = &phba->sli;
7690 uint8_t actcmd = MBX_HEARTBEAT;
7691 unsigned long timeout;
7693 spin_lock_irq(&phba->hbalock);
7694 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7695 spin_unlock_irq(&phba->hbalock);
7697 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7698 spin_lock_irq(&phba->hbalock);
7699 if (phba->sli.mbox_active)
7700 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
7701 spin_unlock_irq(&phba->hbalock);
7702 /* Determine how long we might wait for the active mailbox
7703 * command to be gracefully completed by firmware.
7705 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
7707 while (phba->sli.mbox_active) {
7708 /* Check active mailbox complete status every 2ms */
7710 if (time_after(jiffies, timeout))
7711 /* Timeout, let the mailbox flush routine to
7712 * forcefully release active mailbox command
7717 lpfc_sli_mbox_sys_flush(phba);
7721 * lpfc_sli_eratt_read - read sli-3 error attention events
7722 * @phba: Pointer to HBA context.
7724 * This function is called to read the SLI3 device error attention registers
7725 * for possible error attention events. The caller must hold the hostlock
7726 * with spin_lock_irq().
7728 * This fucntion returns 1 when there is Error Attention in the Host Attention
7729 * Register and returns 0 otherwise.
7732 lpfc_sli_eratt_read(struct lpfc_hba *phba)
7736 /* Read chip Host Attention (HA) register */
7737 ha_copy = readl(phba->HAregaddr);
7738 if (ha_copy & HA_ERATT) {
7739 /* Read host status register to retrieve error event */
7740 lpfc_sli_read_hs(phba);
7742 /* Check if there is a deferred error condition is active */
7743 if ((HS_FFER1 & phba->work_hs) &&
7744 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7745 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
7746 phba->hba_flag |= DEFER_ERATT;
7747 /* Clear all interrupt enable conditions */
7748 writel(0, phba->HCregaddr);
7749 readl(phba->HCregaddr);
7752 /* Set the driver HA work bitmap */
7753 phba->work_ha |= HA_ERATT;
7754 /* Indicate polling handles this ERATT */
7755 phba->hba_flag |= HBA_ERATT_HANDLED;
7762 * lpfc_sli4_eratt_read - read sli-4 error attention events
7763 * @phba: Pointer to HBA context.
7765 * This function is called to read the SLI4 device error attention registers
7766 * for possible error attention events. The caller must hold the hostlock
7767 * with spin_lock_irq().
7769 * This fucntion returns 1 when there is Error Attention in the Host Attention
7770 * Register and returns 0 otherwise.
7773 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
7775 uint32_t uerr_sta_hi, uerr_sta_lo;
7777 /* For now, use the SLI4 device internal unrecoverable error
7778 * registers for error attention. This can be changed later.
7780 uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
7781 uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
7782 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
7783 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
7784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7785 "1423 HBA Unrecoverable error: "
7786 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7787 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7788 uerr_sta_lo, uerr_sta_hi,
7789 phba->sli4_hba.ue_mask_lo,
7790 phba->sli4_hba.ue_mask_hi);
7791 phba->work_status[0] = uerr_sta_lo;
7792 phba->work_status[1] = uerr_sta_hi;
7793 /* Set the driver HA work bitmap */
7794 phba->work_ha |= HA_ERATT;
7795 /* Indicate polling handles this ERATT */
7796 phba->hba_flag |= HBA_ERATT_HANDLED;
7803 * lpfc_sli_check_eratt - check error attention events
7804 * @phba: Pointer to HBA context.
7806 * This function is called from timer soft interrupt context to check HBA's
7807 * error attention register bit for error attention events.
7809 * This fucntion returns 1 when there is Error Attention in the Host Attention
7810 * Register and returns 0 otherwise.
7813 lpfc_sli_check_eratt(struct lpfc_hba *phba)
7817 /* If somebody is waiting to handle an eratt, don't process it
7818 * here. The brdkill function will do this.
7820 if (phba->link_flag & LS_IGNORE_ERATT)
7823 /* Check if interrupt handler handles this ERATT */
7824 spin_lock_irq(&phba->hbalock);
7825 if (phba->hba_flag & HBA_ERATT_HANDLED) {
7826 /* Interrupt handler has handled ERATT */
7827 spin_unlock_irq(&phba->hbalock);
7832 * If there is deferred error attention, do not check for error
7835 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7836 spin_unlock_irq(&phba->hbalock);
7840 /* If PCI channel is offline, don't process it */
7841 if (unlikely(pci_channel_offline(phba->pcidev))) {
7842 spin_unlock_irq(&phba->hbalock);
7846 switch (phba->sli_rev) {
7849 /* Read chip Host Attention (HA) register */
7850 ha_copy = lpfc_sli_eratt_read(phba);
7853 /* Read devcie Uncoverable Error (UERR) registers */
7854 ha_copy = lpfc_sli4_eratt_read(phba);
7857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7858 "0299 Invalid SLI revision (%d)\n",
7863 spin_unlock_irq(&phba->hbalock);
7869 * lpfc_intr_state_check - Check device state for interrupt handling
7870 * @phba: Pointer to HBA context.
7872 * This inline routine checks whether a device or its PCI slot is in a state
7873 * that the interrupt should be handled.
7875 * This function returns 0 if the device or the PCI slot is in a state that
7876 * interrupt should be handled, otherwise -EIO.
7879 lpfc_intr_state_check(struct lpfc_hba *phba)
7881 /* If the pci channel is offline, ignore all the interrupts */
7882 if (unlikely(pci_channel_offline(phba->pcidev)))
7885 /* Update device level interrupt statistics */
7886 phba->sli.slistat.sli_intr++;
7888 /* Ignore all interrupts during initialization. */
7889 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7896 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
7897 * @irq: Interrupt number.
7898 * @dev_id: The device context pointer.
7900 * This function is directly called from the PCI layer as an interrupt
7901 * service routine when device with SLI-3 interface spec is enabled with
7902 * MSI-X multi-message interrupt mode and there are slow-path events in
7903 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
7904 * interrupt mode, this function is called as part of the device-level
7905 * interrupt handler. When the PCI slot is in error recovery or the HBA
7906 * is undergoing initialization, the interrupt handler will not process
7907 * the interrupt. The link attention and ELS ring attention events are
7908 * handled by the worker thread. The interrupt handler signals the worker
7909 * thread and returns for these events. This function is called without
7910 * any lock held. It gets the hbalock to access and update SLI data
7913 * This function returns IRQ_HANDLED when interrupt is handled else it
7917 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
7919 struct lpfc_hba *phba;
7920 uint32_t ha_copy, hc_copy;
7921 uint32_t work_ha_copy;
7922 unsigned long status;
7923 unsigned long iflag;
7926 MAILBOX_t *mbox, *pmbox;
7927 struct lpfc_vport *vport;
7928 struct lpfc_nodelist *ndlp;
7929 struct lpfc_dmabuf *mp;
7934 * Get the driver's phba structure from the dev_id and
7935 * assume the HBA is not interrupting.
7937 phba = (struct lpfc_hba *)dev_id;
7939 if (unlikely(!phba))
7943 * Stuff needs to be attented to when this function is invoked as an
7944 * individual interrupt handler in MSI-X multi-message interrupt mode
7946 if (phba->intr_type == MSIX) {
7947 /* Check device state for handling interrupt */
7948 if (lpfc_intr_state_check(phba))
7950 /* Need to read HA REG for slow-path events */
7951 spin_lock_irqsave(&phba->hbalock, iflag);
7952 ha_copy = readl(phba->HAregaddr);
7953 /* If somebody is waiting to handle an eratt don't process it
7954 * here. The brdkill function will do this.
7956 if (phba->link_flag & LS_IGNORE_ERATT)
7957 ha_copy &= ~HA_ERATT;
7958 /* Check the need for handling ERATT in interrupt handler */
7959 if (ha_copy & HA_ERATT) {
7960 if (phba->hba_flag & HBA_ERATT_HANDLED)
7961 /* ERATT polling has handled ERATT */
7962 ha_copy &= ~HA_ERATT;
7964 /* Indicate interrupt handler handles ERATT */
7965 phba->hba_flag |= HBA_ERATT_HANDLED;
7969 * If there is deferred error attention, do not check for any
7972 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7973 spin_unlock_irqrestore(&phba->hbalock, iflag);
7977 /* Clear up only attention source related to slow-path */
7978 hc_copy = readl(phba->HCregaddr);
7979 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
7980 HC_LAINT_ENA | HC_ERINT_ENA),
7982 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
7984 writel(hc_copy, phba->HCregaddr);
7985 readl(phba->HAregaddr); /* flush */
7986 spin_unlock_irqrestore(&phba->hbalock, iflag);
7988 ha_copy = phba->ha_copy;
7990 work_ha_copy = ha_copy & phba->work_ha_mask;
7993 if (work_ha_copy & HA_LATT) {
7994 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
7996 * Turn off Link Attention interrupts
7997 * until CLEAR_LA done
7999 spin_lock_irqsave(&phba->hbalock, iflag);
8000 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
8001 control = readl(phba->HCregaddr);
8002 control &= ~HC_LAINT_ENA;
8003 writel(control, phba->HCregaddr);
8004 readl(phba->HCregaddr); /* flush */
8005 spin_unlock_irqrestore(&phba->hbalock, iflag);
8008 work_ha_copy &= ~HA_LATT;
8011 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
8013 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8014 * the only slow ring.
8016 status = (work_ha_copy &
8017 (HA_RXMASK << (4*LPFC_ELS_RING)));
8018 status >>= (4*LPFC_ELS_RING);
8019 if (status & HA_RXMASK) {
8020 spin_lock_irqsave(&phba->hbalock, iflag);
8021 control = readl(phba->HCregaddr);
8023 lpfc_debugfs_slow_ring_trc(phba,
8024 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8026 (uint32_t)phba->sli.slistat.sli_intr);
8028 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
8029 lpfc_debugfs_slow_ring_trc(phba,
8031 "pwork:x%x hawork:x%x wait:x%x",
8032 phba->work_ha, work_ha_copy,
8033 (uint32_t)((unsigned long)
8034 &phba->work_waitq));
8037 ~(HC_R0INT_ENA << LPFC_ELS_RING);
8038 writel(control, phba->HCregaddr);
8039 readl(phba->HCregaddr); /* flush */
8042 lpfc_debugfs_slow_ring_trc(phba,
8043 "ISR slow ring: pwork:"
8044 "x%x hawork:x%x wait:x%x",
8045 phba->work_ha, work_ha_copy,
8046 (uint32_t)((unsigned long)
8047 &phba->work_waitq));
8049 spin_unlock_irqrestore(&phba->hbalock, iflag);
8052 spin_lock_irqsave(&phba->hbalock, iflag);
8053 if (work_ha_copy & HA_ERATT) {
8054 lpfc_sli_read_hs(phba);
8056 * Check if there is a deferred error condition
8059 if ((HS_FFER1 & phba->work_hs) &&
8060 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
8061 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
8062 phba->hba_flag |= DEFER_ERATT;
8063 /* Clear all interrupt enable conditions */
8064 writel(0, phba->HCregaddr);
8065 readl(phba->HCregaddr);
8069 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
8070 pmb = phba->sli.mbox_active;
8075 /* First check out the status word */
8076 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
8077 if (pmbox->mbxOwner != OWN_HOST) {
8078 spin_unlock_irqrestore(&phba->hbalock, iflag);
8080 * Stray Mailbox Interrupt, mbxCommand <cmd>
8081 * mbxStatus <status>
8083 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8085 "(%d):0304 Stray Mailbox "
8086 "Interrupt mbxCommand x%x "
8088 (vport ? vport->vpi : 0),
8091 /* clear mailbox attention bit */
8092 work_ha_copy &= ~HA_MBATT;
8094 phba->sli.mbox_active = NULL;
8095 spin_unlock_irqrestore(&phba->hbalock, iflag);
8096 phba->last_completion_time = jiffies;
8097 del_timer(&phba->sli.mbox_tmo);
8098 if (pmb->mbox_cmpl) {
8099 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8102 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8103 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8105 lpfc_debugfs_disc_trc(vport,
8106 LPFC_DISC_TRC_MBOX_VPORT,
8108 "status:x%x rpi:x%x",
8109 (uint32_t)pmbox->mbxStatus,
8110 pmbox->un.varWords[0], 0);
8112 if (!pmbox->mbxStatus) {
8113 mp = (struct lpfc_dmabuf *)
8115 ndlp = (struct lpfc_nodelist *)
8118 /* Reg_LOGIN of dflt RPI was
8119 * successful. new lets get
8120 * rid of the RPI using the
8123 lpfc_unreg_login(phba,
8125 pmbox->un.varWords[0],
8128 lpfc_mbx_cmpl_dflt_rpi;
8130 pmb->context2 = ndlp;
8132 rc = lpfc_sli_issue_mbox(phba,
8136 lpfc_printf_log(phba,
8139 "0350 rc should have"
8141 if (rc != MBX_NOT_FINISHED)
8142 goto send_current_mbox;
8146 &phba->pport->work_port_lock,
8148 phba->pport->work_port_events &=
8150 spin_unlock_irqrestore(
8151 &phba->pport->work_port_lock,
8153 lpfc_mbox_cmpl_put(phba, pmb);
8156 spin_unlock_irqrestore(&phba->hbalock, iflag);
8158 if ((work_ha_copy & HA_MBATT) &&
8159 (phba->sli.mbox_active == NULL)) {
8161 /* Process next mailbox command if there is one */
8163 rc = lpfc_sli_issue_mbox(phba, NULL,
8165 } while (rc == MBX_NOT_FINISHED);
8166 if (rc != MBX_SUCCESS)
8167 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8168 LOG_SLI, "0349 rc should be "
8172 spin_lock_irqsave(&phba->hbalock, iflag);
8173 phba->work_ha |= work_ha_copy;
8174 spin_unlock_irqrestore(&phba->hbalock, iflag);
8175 lpfc_worker_wake_up(phba);
8179 } /* lpfc_sli_sp_intr_handler */
8182 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8183 * @irq: Interrupt number.
8184 * @dev_id: The device context pointer.
8186 * This function is directly called from the PCI layer as an interrupt
8187 * service routine when device with SLI-3 interface spec is enabled with
8188 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8189 * ring event in the HBA. However, when the device is enabled with either
8190 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8191 * device-level interrupt handler. When the PCI slot is in error recovery
8192 * or the HBA is undergoing initialization, the interrupt handler will not
8193 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8194 * the intrrupt context. This function is called without any lock held.
8195 * It gets the hbalock to access and update SLI data structures.
8197 * This function returns IRQ_HANDLED when interrupt is handled else it
8201 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
8203 struct lpfc_hba *phba;
8205 unsigned long status;
8206 unsigned long iflag;
8208 /* Get the driver's phba structure from the dev_id and
8209 * assume the HBA is not interrupting.
8211 phba = (struct lpfc_hba *) dev_id;
8213 if (unlikely(!phba))
8217 * Stuff needs to be attented to when this function is invoked as an
8218 * individual interrupt handler in MSI-X multi-message interrupt mode
8220 if (phba->intr_type == MSIX) {
8221 /* Check device state for handling interrupt */
8222 if (lpfc_intr_state_check(phba))
8224 /* Need to read HA REG for FCP ring and other ring events */
8225 ha_copy = readl(phba->HAregaddr);
8226 /* Clear up only attention source related to fast-path */
8227 spin_lock_irqsave(&phba->hbalock, iflag);
8229 * If there is deferred error attention, do not check for
8232 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8233 spin_unlock_irqrestore(&phba->hbalock, iflag);
8236 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8238 readl(phba->HAregaddr); /* flush */
8239 spin_unlock_irqrestore(&phba->hbalock, iflag);
8241 ha_copy = phba->ha_copy;
8244 * Process all events on FCP ring. Take the optimized path for FCP IO.
8246 ha_copy &= ~(phba->work_ha_mask);
8248 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8249 status >>= (4*LPFC_FCP_RING);
8250 if (status & HA_RXMASK)
8251 lpfc_sli_handle_fast_ring_event(phba,
8252 &phba->sli.ring[LPFC_FCP_RING],
8255 if (phba->cfg_multi_ring_support == 2) {
8257 * Process all events on extra ring. Take the optimized path
8258 * for extra ring IO.
8260 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8261 status >>= (4*LPFC_EXTRA_RING);
8262 if (status & HA_RXMASK) {
8263 lpfc_sli_handle_fast_ring_event(phba,
8264 &phba->sli.ring[LPFC_EXTRA_RING],
8269 } /* lpfc_sli_fp_intr_handler */
8272 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8273 * @irq: Interrupt number.
8274 * @dev_id: The device context pointer.
8276 * This function is the HBA device-level interrupt handler to device with
8277 * SLI-3 interface spec, called from the PCI layer when either MSI or
8278 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8279 * requires driver attention. This function invokes the slow-path interrupt
8280 * attention handling function and fast-path interrupt attention handling
8281 * function in turn to process the relevant HBA attention events. This
8282 * function is called without any lock held. It gets the hbalock to access
8283 * and update SLI data structures.
8285 * This function returns IRQ_HANDLED when interrupt is handled, else it
8289 lpfc_sli_intr_handler(int irq, void *dev_id)
8291 struct lpfc_hba *phba;
8292 irqreturn_t sp_irq_rc, fp_irq_rc;
8293 unsigned long status1, status2;
8297 * Get the driver's phba structure from the dev_id and
8298 * assume the HBA is not interrupting.
8300 phba = (struct lpfc_hba *) dev_id;
8302 if (unlikely(!phba))
8305 /* Check device state for handling interrupt */
8306 if (lpfc_intr_state_check(phba))
8309 spin_lock(&phba->hbalock);
8310 phba->ha_copy = readl(phba->HAregaddr);
8311 if (unlikely(!phba->ha_copy)) {
8312 spin_unlock(&phba->hbalock);
8314 } else if (phba->ha_copy & HA_ERATT) {
8315 if (phba->hba_flag & HBA_ERATT_HANDLED)
8316 /* ERATT polling has handled ERATT */
8317 phba->ha_copy &= ~HA_ERATT;
8319 /* Indicate interrupt handler handles ERATT */
8320 phba->hba_flag |= HBA_ERATT_HANDLED;
8324 * If there is deferred error attention, do not check for any interrupt.
8326 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8327 spin_unlock_irq(&phba->hbalock);
8331 /* Clear attention sources except link and error attentions */
8332 hc_copy = readl(phba->HCregaddr);
8333 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
8334 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
8336 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
8337 writel(hc_copy, phba->HCregaddr);
8338 readl(phba->HAregaddr); /* flush */
8339 spin_unlock(&phba->hbalock);
8342 * Invokes slow-path host attention interrupt handling as appropriate.
8345 /* status of events with mailbox and link attention */
8346 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
8348 /* status of events with ELS ring */
8349 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
8350 status2 >>= (4*LPFC_ELS_RING);
8352 if (status1 || (status2 & HA_RXMASK))
8353 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
8355 sp_irq_rc = IRQ_NONE;
8358 * Invoke fast-path host attention interrupt handling as appropriate.
8361 /* status of events with FCP ring */
8362 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8363 status1 >>= (4*LPFC_FCP_RING);
8365 /* status of events with extra ring */
8366 if (phba->cfg_multi_ring_support == 2) {
8367 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8368 status2 >>= (4*LPFC_EXTRA_RING);
8372 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
8373 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
8375 fp_irq_rc = IRQ_NONE;
8377 /* Return device-level interrupt handling status */
8378 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
8379 } /* lpfc_sli_intr_handler */
8382 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8383 * @phba: pointer to lpfc hba data structure.
8385 * This routine is invoked by the worker thread to process all the pending
8386 * SLI4 FCP abort XRI events.
8388 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
8390 struct lpfc_cq_event *cq_event;
8392 /* First, declare the fcp xri abort event has been handled */
8393 spin_lock_irq(&phba->hbalock);
8394 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
8395 spin_unlock_irq(&phba->hbalock);
8396 /* Now, handle all the fcp xri abort events */
8397 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
8398 /* Get the first event from the head of the event queue */
8399 spin_lock_irq(&phba->hbalock);
8400 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8401 cq_event, struct lpfc_cq_event, list);
8402 spin_unlock_irq(&phba->hbalock);
8403 /* Notify aborted XRI for FCP work queue */
8404 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8405 /* Free the event processed back to the free pool */
8406 lpfc_sli4_cq_event_release(phba, cq_event);
8411 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8412 * @phba: pointer to lpfc hba data structure.
8414 * This routine is invoked by the worker thread to process all the pending
8415 * SLI4 els abort xri events.
8417 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
8419 struct lpfc_cq_event *cq_event;
8421 /* First, declare the els xri abort event has been handled */
8422 spin_lock_irq(&phba->hbalock);
8423 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
8424 spin_unlock_irq(&phba->hbalock);
8425 /* Now, handle all the els xri abort events */
8426 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
8427 /* Get the first event from the head of the event queue */
8428 spin_lock_irq(&phba->hbalock);
8429 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8430 cq_event, struct lpfc_cq_event, list);
8431 spin_unlock_irq(&phba->hbalock);
8432 /* Notify aborted XRI for ELS work queue */
8433 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8434 /* Free the event processed back to the free pool */
8435 lpfc_sli4_cq_event_release(phba, cq_event);
8440 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8441 * @phba: pointer to lpfc hba data structure
8442 * @pIocbIn: pointer to the rspiocbq
8443 * @pIocbOut: pointer to the cmdiocbq
8444 * @wcqe: pointer to the complete wcqe
8446 * This routine transfers the fields of a command iocbq to a response iocbq
8447 * by copying all the IOCB fields from command iocbq and transferring the
8448 * completion status information from the complete wcqe.
8451 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
8452 struct lpfc_iocbq *pIocbIn,
8453 struct lpfc_iocbq *pIocbOut,
8454 struct lpfc_wcqe_complete *wcqe)
8456 unsigned long iflags;
8457 size_t offset = offsetof(struct lpfc_iocbq, iocb);
8459 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
8460 sizeof(struct lpfc_iocbq) - offset);
8461 /* Map WCQE parameters into irspiocb parameters */
8462 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
8463 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
8464 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
8465 pIocbIn->iocb.un.fcpi.fcpi_parm =
8466 pIocbOut->iocb.un.fcpi.fcpi_parm -
8467 wcqe->total_data_placed;
8469 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8471 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8472 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
8475 /* Pick up HBA exchange busy condition */
8476 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
8477 spin_lock_irqsave(&phba->hbalock, iflags);
8478 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
8479 spin_unlock_irqrestore(&phba->hbalock, iflags);
8484 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8485 * @phba: Pointer to HBA context object.
8486 * @wcqe: Pointer to work-queue completion queue entry.
8488 * This routine handles an ELS work-queue completion event and construct
8489 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8490 * discovery engine to handle.
8492 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8494 static struct lpfc_iocbq *
8495 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
8496 struct lpfc_iocbq *irspiocbq)
8498 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8499 struct lpfc_iocbq *cmdiocbq;
8500 struct lpfc_wcqe_complete *wcqe;
8501 unsigned long iflags;
8503 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
8504 spin_lock_irqsave(&phba->hbalock, iflags);
8505 pring->stats.iocb_event++;
8506 /* Look up the ELS command IOCB and create pseudo response IOCB */
8507 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8508 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8509 spin_unlock_irqrestore(&phba->hbalock, iflags);
8511 if (unlikely(!cmdiocbq)) {
8512 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8513 "0386 ELS complete with no corresponding "
8514 "cmdiocb: iotag (%d)\n",
8515 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8516 lpfc_sli_release_iocbq(phba, irspiocbq);
8520 /* Fake the irspiocbq and copy necessary response information */
8521 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
8527 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8528 * @phba: Pointer to HBA context object.
8529 * @cqe: Pointer to mailbox completion queue entry.
8531 * This routine process a mailbox completion queue entry with asynchrous
8534 * Return: true if work posted to worker thread, otherwise false.
8537 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8539 struct lpfc_cq_event *cq_event;
8540 unsigned long iflags;
8542 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8543 "0392 Async Event: word0:x%x, word1:x%x, "
8544 "word2:x%x, word3:x%x\n", mcqe->word0,
8545 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
8547 /* Allocate a new internal CQ_EVENT entry */
8548 cq_event = lpfc_sli4_cq_event_alloc(phba);
8550 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8551 "0394 Failed to allocate CQ_EVENT entry\n");
8555 /* Move the CQE into an asynchronous event entry */
8556 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
8557 spin_lock_irqsave(&phba->hbalock, iflags);
8558 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
8559 /* Set the async event flag */
8560 phba->hba_flag |= ASYNC_EVENT;
8561 spin_unlock_irqrestore(&phba->hbalock, iflags);
8567 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8568 * @phba: Pointer to HBA context object.
8569 * @cqe: Pointer to mailbox completion queue entry.
8571 * This routine process a mailbox completion queue entry with mailbox
8574 * Return: true if work posted to worker thread, otherwise false.
8577 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8579 uint32_t mcqe_status;
8580 MAILBOX_t *mbox, *pmbox;
8581 struct lpfc_mqe *mqe;
8582 struct lpfc_vport *vport;
8583 struct lpfc_nodelist *ndlp;
8584 struct lpfc_dmabuf *mp;
8585 unsigned long iflags;
8587 bool workposted = false;
8590 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8591 if (!bf_get(lpfc_trailer_completed, mcqe))
8592 goto out_no_mqe_complete;
8594 /* Get the reference to the active mbox command */
8595 spin_lock_irqsave(&phba->hbalock, iflags);
8596 pmb = phba->sli.mbox_active;
8597 if (unlikely(!pmb)) {
8598 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
8599 "1832 No pending MBOX command to handle\n");
8600 spin_unlock_irqrestore(&phba->hbalock, iflags);
8601 goto out_no_mqe_complete;
8603 spin_unlock_irqrestore(&phba->hbalock, iflags);
8605 pmbox = (MAILBOX_t *)&pmb->u.mqe;
8609 /* Reset heartbeat timer */
8610 phba->last_completion_time = jiffies;
8611 del_timer(&phba->sli.mbox_tmo);
8613 /* Move mbox data to caller's mailbox region, do endian swapping */
8614 if (pmb->mbox_cmpl && mbox)
8615 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
8616 /* Set the mailbox status with SLI4 range 0x4000 */
8617 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
8618 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
8619 bf_set(lpfc_mqe_status, mqe,
8620 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8622 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8623 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8624 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
8625 "MBOX dflt rpi: status:x%x rpi:x%x",
8627 pmbox->un.varWords[0], 0);
8628 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
8629 mp = (struct lpfc_dmabuf *)(pmb->context1);
8630 ndlp = (struct lpfc_nodelist *)pmb->context2;
8631 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8632 * RID of the PPI using the same mbox buffer.
8634 lpfc_unreg_login(phba, vport->vpi,
8635 pmbox->un.varWords[0], pmb);
8636 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
8638 pmb->context2 = ndlp;
8640 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
8642 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8643 LOG_SLI, "0385 rc should "
8644 "have been MBX_BUSY\n");
8645 if (rc != MBX_NOT_FINISHED)
8646 goto send_current_mbox;
8649 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8650 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8651 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8653 /* There is mailbox completion work to do */
8654 spin_lock_irqsave(&phba->hbalock, iflags);
8655 __lpfc_mbox_cmpl_put(phba, pmb);
8656 phba->work_ha |= HA_MBATT;
8657 spin_unlock_irqrestore(&phba->hbalock, iflags);
8661 spin_lock_irqsave(&phba->hbalock, iflags);
8662 /* Release the mailbox command posting token */
8663 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8664 /* Setting active mailbox pointer need to be in sync to flag clear */
8665 phba->sli.mbox_active = NULL;
8666 spin_unlock_irqrestore(&phba->hbalock, iflags);
8667 /* Wake up worker thread to post the next pending mailbox command */
8668 lpfc_worker_wake_up(phba);
8669 out_no_mqe_complete:
8670 if (bf_get(lpfc_trailer_consumed, mcqe))
8671 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
8676 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8677 * @phba: Pointer to HBA context object.
8678 * @cqe: Pointer to mailbox completion queue entry.
8680 * This routine process a mailbox completion queue entry, it invokes the
8681 * proper mailbox complete handling or asynchrous event handling routine
8682 * according to the MCQE's async bit.
8684 * Return: true if work posted to worker thread, otherwise false.
8687 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8689 struct lpfc_mcqe mcqe;
8692 /* Copy the mailbox MCQE and convert endian order as needed */
8693 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
8695 /* Invoke the proper event handling routine */
8696 if (!bf_get(lpfc_trailer_async, &mcqe))
8697 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
8699 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
8704 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8705 * @phba: Pointer to HBA context object.
8706 * @wcqe: Pointer to work-queue completion queue entry.
8708 * This routine handles an ELS work-queue completion event.
8710 * Return: true if work posted to worker thread, otherwise false.
8713 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
8714 struct lpfc_wcqe_complete *wcqe)
8716 struct lpfc_iocbq *irspiocbq;
8717 unsigned long iflags;
8719 /* Get an irspiocbq for later ELS response processing use */
8720 irspiocbq = lpfc_sli_get_iocbq(phba);
8722 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8723 "0387 Failed to allocate an iocbq\n");
8727 /* Save off the slow-path queue event for work thread to process */
8728 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
8729 spin_lock_irqsave(&phba->hbalock, iflags);
8730 list_add_tail(&irspiocbq->cq_event.list,
8731 &phba->sli4_hba.sp_queue_event);
8732 phba->hba_flag |= HBA_SP_QUEUE_EVT;
8733 spin_unlock_irqrestore(&phba->hbalock, iflags);
8739 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8740 * @phba: Pointer to HBA context object.
8741 * @wcqe: Pointer to work-queue completion queue entry.
8743 * This routine handles slow-path WQ entry comsumed event by invoking the
8744 * proper WQ release routine to the slow-path WQ.
8747 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
8748 struct lpfc_wcqe_release *wcqe)
8750 /* Check for the slow-path ELS work queue */
8751 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
8752 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
8753 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8755 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8756 "2579 Slow-path wqe consume event carries "
8757 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8758 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
8759 phba->sli4_hba.els_wq->queue_id);
8763 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8764 * @phba: Pointer to HBA context object.
8765 * @cq: Pointer to a WQ completion queue.
8766 * @wcqe: Pointer to work-queue completion queue entry.
8768 * This routine handles an XRI abort event.
8770 * Return: true if work posted to worker thread, otherwise false.
8773 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
8774 struct lpfc_queue *cq,
8775 struct sli4_wcqe_xri_aborted *wcqe)
8777 bool workposted = false;
8778 struct lpfc_cq_event *cq_event;
8779 unsigned long iflags;
8781 /* Allocate a new internal CQ_EVENT entry */
8782 cq_event = lpfc_sli4_cq_event_alloc(phba);
8784 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8785 "0602 Failed to allocate CQ_EVENT entry\n");
8789 /* Move the CQE into the proper xri abort event list */
8790 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
8791 switch (cq->subtype) {
8793 spin_lock_irqsave(&phba->hbalock, iflags);
8794 list_add_tail(&cq_event->list,
8795 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
8796 /* Set the fcp xri abort event flag */
8797 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
8798 spin_unlock_irqrestore(&phba->hbalock, iflags);
8802 spin_lock_irqsave(&phba->hbalock, iflags);
8803 list_add_tail(&cq_event->list,
8804 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8805 /* Set the els xri abort event flag */
8806 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
8807 spin_unlock_irqrestore(&phba->hbalock, iflags);
8811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8812 "0603 Invalid work queue CQE subtype (x%x)\n",
8821 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8822 * @phba: Pointer to HBA context object.
8823 * @rcqe: Pointer to receive-queue completion queue entry.
8825 * This routine process a receive-queue completion queue entry.
8827 * Return: true if work posted to worker thread, otherwise false.
8830 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
8832 bool workposted = false;
8833 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
8834 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
8835 struct hbq_dmabuf *dma_buf;
8837 unsigned long iflags;
8839 if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
8842 status = bf_get(lpfc_rcqe_status, rcqe);
8844 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
8845 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8846 "2537 Receive Frame Truncated!!\n");
8847 case FC_STATUS_RQ_SUCCESS:
8848 lpfc_sli4_rq_release(hrq, drq);
8849 spin_lock_irqsave(&phba->hbalock, iflags);
8850 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
8852 spin_unlock_irqrestore(&phba->hbalock, iflags);
8855 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
8856 /* save off the frame for the word thread to process */
8857 list_add_tail(&dma_buf->cq_event.list,
8858 &phba->sli4_hba.sp_queue_event);
8859 /* Frame received */
8860 phba->hba_flag |= HBA_SP_QUEUE_EVT;
8861 spin_unlock_irqrestore(&phba->hbalock, iflags);
8864 case FC_STATUS_INSUFF_BUF_NEED_BUF:
8865 case FC_STATUS_INSUFF_BUF_FRM_DISC:
8866 /* Post more buffers if possible */
8867 spin_lock_irqsave(&phba->hbalock, iflags);
8868 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
8869 spin_unlock_irqrestore(&phba->hbalock, iflags);
8878 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
8879 * @phba: Pointer to HBA context object.
8880 * @cq: Pointer to the completion queue.
8881 * @wcqe: Pointer to a completion queue entry.
8883 * This routine process a slow-path work-queue or recieve queue completion queue
8886 * Return: true if work posted to worker thread, otherwise false.
8889 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
8890 struct lpfc_cqe *cqe)
8892 struct lpfc_cqe cqevt;
8893 bool workposted = false;
8895 /* Copy the work queue CQE and convert endian order if needed */
8896 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
8898 /* Check and process for different type of WCQE and dispatch */
8899 switch (bf_get(lpfc_cqe_code, &cqevt)) {
8900 case CQE_CODE_COMPL_WQE:
8901 /* Process the WQ/RQ complete event */
8902 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
8903 (struct lpfc_wcqe_complete *)&cqevt);
8905 case CQE_CODE_RELEASE_WQE:
8906 /* Process the WQ release event */
8907 lpfc_sli4_sp_handle_rel_wcqe(phba,
8908 (struct lpfc_wcqe_release *)&cqevt);
8910 case CQE_CODE_XRI_ABORTED:
8911 /* Process the WQ XRI abort event */
8912 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
8913 (struct sli4_wcqe_xri_aborted *)&cqevt);
8915 case CQE_CODE_RECEIVE:
8916 /* Process the RQ event */
8917 workposted = lpfc_sli4_sp_handle_rcqe(phba,
8918 (struct lpfc_rcqe *)&cqevt);
8921 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8922 "0388 Not a valid WCQE code: x%x\n",
8923 bf_get(lpfc_cqe_code, &cqevt));
8930 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
8931 * @phba: Pointer to HBA context object.
8932 * @eqe: Pointer to fast-path event queue entry.
8934 * This routine process a event queue entry from the slow-path event queue.
8935 * It will check the MajorCode and MinorCode to determine this is for a
8936 * completion event on a completion queue, if not, an error shall be logged
8937 * and just return. Otherwise, it will get to the corresponding completion
8938 * queue and process all the entries on that completion queue, rearm the
8939 * completion queue, and then return.
8943 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
8945 struct lpfc_queue *cq = NULL, *childq, *speq;
8946 struct lpfc_cqe *cqe;
8947 bool workposted = false;
8951 if (bf_get(lpfc_eqe_major_code, eqe) != 0) {
8952 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8953 "0359 Not a valid slow-path completion "
8954 "event: majorcode=x%x, minorcode=x%x\n",
8955 bf_get(lpfc_eqe_major_code, eqe),
8956 bf_get(lpfc_eqe_minor_code, eqe));
8960 /* Get the reference to the corresponding CQ */
8961 cqid = bf_get(lpfc_eqe_resource_id, eqe);
8963 /* Search for completion queue pointer matching this cqid */
8964 speq = phba->sli4_hba.sp_eq;
8965 list_for_each_entry(childq, &speq->child_list, list) {
8966 if (childq->queue_id == cqid) {
8971 if (unlikely(!cq)) {
8972 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8973 "0365 Slow-path CQ identifier (%d) does "
8974 "not exist\n", cqid);
8978 /* Process all the entries to the CQ */
8981 while ((cqe = lpfc_sli4_cq_get(cq))) {
8982 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
8983 if (!(++ecount % LPFC_GET_QE_REL_INT))
8984 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8988 while ((cqe = lpfc_sli4_cq_get(cq))) {
8989 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
8990 if (!(++ecount % LPFC_GET_QE_REL_INT))
8991 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8995 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8996 "0370 Invalid completion queue type (%d)\n",
9001 /* Catch the no cq entry condition, log an error */
9002 if (unlikely(ecount == 0))
9003 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9004 "0371 No entry from the CQ: identifier "
9005 "(x%x), type (%d)\n", cq->queue_id, cq->type);
9007 /* In any case, flash and re-arm the RCQ */
9008 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9010 /* wake up worker thread if there are works to be done */
9012 lpfc_worker_wake_up(phba);
9016 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9017 * @eqe: Pointer to fast-path completion queue entry.
9019 * This routine process a fast-path work queue completion entry from fast-path
9020 * event queue for FCP command response completion.
9023 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
9024 struct lpfc_wcqe_complete *wcqe)
9026 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
9027 struct lpfc_iocbq *cmdiocbq;
9028 struct lpfc_iocbq irspiocbq;
9029 unsigned long iflags;
9031 spin_lock_irqsave(&phba->hbalock, iflags);
9032 pring->stats.iocb_event++;
9033 spin_unlock_irqrestore(&phba->hbalock, iflags);
9035 /* Check for response status */
9036 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
9037 /* If resource errors reported from HBA, reduce queue
9038 * depth of the SCSI device.
9040 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
9041 IOSTAT_LOCAL_REJECT) &&
9042 (wcqe->parameter == IOERR_NO_RESOURCES)) {
9043 phba->lpfc_rampdown_queue_depth(phba);
9045 /* Log the error status */
9046 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9047 "0373 FCP complete error: status=x%x, "
9048 "hw_status=x%x, total_data_specified=%d, "
9049 "parameter=x%x, word3=x%x\n",
9050 bf_get(lpfc_wcqe_c_status, wcqe),
9051 bf_get(lpfc_wcqe_c_hw_status, wcqe),
9052 wcqe->total_data_placed, wcqe->parameter,
9056 /* Look up the FCP command IOCB and create pseudo response IOCB */
9057 spin_lock_irqsave(&phba->hbalock, iflags);
9058 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
9059 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9060 spin_unlock_irqrestore(&phba->hbalock, iflags);
9061 if (unlikely(!cmdiocbq)) {
9062 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9063 "0374 FCP complete with no corresponding "
9064 "cmdiocb: iotag (%d)\n",
9065 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9068 if (unlikely(!cmdiocbq->iocb_cmpl)) {
9069 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9070 "0375 FCP cmdiocb not callback function "
9072 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9076 /* Fake the irspiocb and copy necessary response information */
9077 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
9079 /* Pass the cmd_iocb and the rsp state to the upper layer */
9080 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
9084 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9085 * @phba: Pointer to HBA context object.
9086 * @cq: Pointer to completion queue.
9087 * @wcqe: Pointer to work-queue completion queue entry.
9089 * This routine handles an fast-path WQ entry comsumed event by invoking the
9090 * proper WQ release routine to the slow-path WQ.
9093 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9094 struct lpfc_wcqe_release *wcqe)
9096 struct lpfc_queue *childwq;
9097 bool wqid_matched = false;
9100 /* Check for fast-path FCP work queue release */
9101 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
9102 list_for_each_entry(childwq, &cq->child_list, list) {
9103 if (childwq->queue_id == fcp_wqid) {
9104 lpfc_sli4_wq_release(childwq,
9105 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9106 wqid_matched = true;
9110 /* Report warning log message if no match found */
9111 if (wqid_matched != true)
9112 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9113 "2580 Fast-path wqe consume event carries "
9114 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
9118 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9119 * @cq: Pointer to the completion queue.
9120 * @eqe: Pointer to fast-path completion queue entry.
9122 * This routine process a fast-path work queue completion entry from fast-path
9123 * event queue for FCP command response completion.
9126 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9127 struct lpfc_cqe *cqe)
9129 struct lpfc_wcqe_release wcqe;
9130 bool workposted = false;
9132 /* Copy the work queue CQE and convert endian order if needed */
9133 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9135 /* Check and process for different type of WCQE and dispatch */
9136 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9137 case CQE_CODE_COMPL_WQE:
9138 /* Process the WQ complete event */
9139 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9140 (struct lpfc_wcqe_complete *)&wcqe);
9142 case CQE_CODE_RELEASE_WQE:
9143 /* Process the WQ release event */
9144 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9145 (struct lpfc_wcqe_release *)&wcqe);
9147 case CQE_CODE_XRI_ABORTED:
9148 /* Process the WQ XRI abort event */
9149 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9150 (struct sli4_wcqe_xri_aborted *)&wcqe);
9153 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9154 "0144 Not a valid WCQE code: x%x\n",
9155 bf_get(lpfc_wcqe_c_code, &wcqe));
9162 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9163 * @phba: Pointer to HBA context object.
9164 * @eqe: Pointer to fast-path event queue entry.
9166 * This routine process a event queue entry from the fast-path event queue.
9167 * It will check the MajorCode and MinorCode to determine this is for a
9168 * completion event on a completion queue, if not, an error shall be logged
9169 * and just return. Otherwise, it will get to the corresponding completion
9170 * queue and process all the entries on the completion queue, rearm the
9171 * completion queue, and then return.
9174 lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9177 struct lpfc_queue *cq;
9178 struct lpfc_cqe *cqe;
9179 bool workposted = false;
9183 if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0)) {
9184 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9185 "0366 Not a valid fast-path completion "
9186 "event: majorcode=x%x, minorcode=x%x\n",
9187 bf_get(lpfc_eqe_major_code, eqe),
9188 bf_get(lpfc_eqe_minor_code, eqe));
9192 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9193 if (unlikely(!cq)) {
9194 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9195 "0367 Fast-path completion queue does not "
9200 /* Get the reference to the corresponding CQ */
9201 cqid = bf_get(lpfc_eqe_resource_id, eqe);
9202 if (unlikely(cqid != cq->queue_id)) {
9203 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9204 "0368 Miss-matched fast-path completion "
9205 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9206 cqid, cq->queue_id);
9210 /* Process all the entries to the CQ */
9211 while ((cqe = lpfc_sli4_cq_get(cq))) {
9212 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9213 if (!(++ecount % LPFC_GET_QE_REL_INT))
9214 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9217 /* Catch the no cq entry condition */
9218 if (unlikely(ecount == 0))
9219 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9220 "0369 No entry from fast-path completion "
9221 "queue fcpcqid=%d\n", cq->queue_id);
9223 /* In any case, flash and re-arm the CQ */
9224 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9226 /* wake up worker thread if there are works to be done */
9228 lpfc_worker_wake_up(phba);
9232 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9234 struct lpfc_eqe *eqe;
9236 /* walk all the EQ entries and drop on the floor */
9237 while ((eqe = lpfc_sli4_eq_get(eq)))
9240 /* Clear and re-arm the EQ */
9241 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9245 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9246 * @irq: Interrupt number.
9247 * @dev_id: The device context pointer.
9249 * This function is directly called from the PCI layer as an interrupt
9250 * service routine when device with SLI-4 interface spec is enabled with
9251 * MSI-X multi-message interrupt mode and there are slow-path events in
9252 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9253 * interrupt mode, this function is called as part of the device-level
9254 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9255 * undergoing initialization, the interrupt handler will not process the
9256 * interrupt. The link attention and ELS ring attention events are handled
9257 * by the worker thread. The interrupt handler signals the worker thread
9258 * and returns for these events. This function is called without any lock
9259 * held. It gets the hbalock to access and update SLI data structures.
9261 * This function returns IRQ_HANDLED when interrupt is handled else it
9265 lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9267 struct lpfc_hba *phba;
9268 struct lpfc_queue *speq;
9269 struct lpfc_eqe *eqe;
9270 unsigned long iflag;
9274 * Get the driver's phba structure from the dev_id
9276 phba = (struct lpfc_hba *)dev_id;
9278 if (unlikely(!phba))
9281 /* Get to the EQ struct associated with this vector */
9282 speq = phba->sli4_hba.sp_eq;
9284 /* Check device state for handling interrupt */
9285 if (unlikely(lpfc_intr_state_check(phba))) {
9286 /* Check again for link_state with lock held */
9287 spin_lock_irqsave(&phba->hbalock, iflag);
9288 if (phba->link_state < LPFC_LINK_DOWN)
9289 /* Flush, clear interrupt, and rearm the EQ */
9290 lpfc_sli4_eq_flush(phba, speq);
9291 spin_unlock_irqrestore(&phba->hbalock, iflag);
9296 * Process all the event on FCP slow-path EQ
9298 while ((eqe = lpfc_sli4_eq_get(speq))) {
9299 lpfc_sli4_sp_handle_eqe(phba, eqe);
9300 if (!(++ecount % LPFC_GET_QE_REL_INT))
9301 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
9304 /* Always clear and re-arm the slow-path EQ */
9305 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
9307 /* Catch the no cq entry condition */
9308 if (unlikely(ecount == 0)) {
9309 if (phba->intr_type == MSIX)
9310 /* MSI-X treated interrupt served as no EQ share INT */
9311 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9312 "0357 MSI-X interrupt with no EQE\n");
9314 /* Non MSI-X treated on interrupt as EQ share INT */
9319 } /* lpfc_sli4_sp_intr_handler */
9322 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9323 * @irq: Interrupt number.
9324 * @dev_id: The device context pointer.
9326 * This function is directly called from the PCI layer as an interrupt
9327 * service routine when device with SLI-4 interface spec is enabled with
9328 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9329 * ring event in the HBA. However, when the device is enabled with either
9330 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9331 * device-level interrupt handler. When the PCI slot is in error recovery
9332 * or the HBA is undergoing initialization, the interrupt handler will not
9333 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9334 * the intrrupt context. This function is called without any lock held.
9335 * It gets the hbalock to access and update SLI data structures. Note that,
9336 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9337 * equal to that of FCP CQ index.
9339 * This function returns IRQ_HANDLED when interrupt is handled else it
9343 lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
9345 struct lpfc_hba *phba;
9346 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9347 struct lpfc_queue *fpeq;
9348 struct lpfc_eqe *eqe;
9349 unsigned long iflag;
9353 /* Get the driver's phba structure from the dev_id */
9354 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
9355 phba = fcp_eq_hdl->phba;
9356 fcp_eqidx = fcp_eq_hdl->idx;
9358 if (unlikely(!phba))
9361 /* Get to the EQ struct associated with this vector */
9362 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
9364 /* Check device state for handling interrupt */
9365 if (unlikely(lpfc_intr_state_check(phba))) {
9366 /* Check again for link_state with lock held */
9367 spin_lock_irqsave(&phba->hbalock, iflag);
9368 if (phba->link_state < LPFC_LINK_DOWN)
9369 /* Flush, clear interrupt, and rearm the EQ */
9370 lpfc_sli4_eq_flush(phba, fpeq);
9371 spin_unlock_irqrestore(&phba->hbalock, iflag);
9376 * Process all the event on FCP fast-path EQ
9378 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9379 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
9380 if (!(++ecount % LPFC_GET_QE_REL_INT))
9381 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
9384 /* Always clear and re-arm the fast-path EQ */
9385 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
9387 if (unlikely(ecount == 0)) {
9388 if (phba->intr_type == MSIX)
9389 /* MSI-X treated interrupt served as no EQ share INT */
9390 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9391 "0358 MSI-X interrupt with no EQE\n");
9393 /* Non MSI-X treated on interrupt as EQ share INT */
9398 } /* lpfc_sli4_fp_intr_handler */
9401 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9402 * @irq: Interrupt number.
9403 * @dev_id: The device context pointer.
9405 * This function is the device-level interrupt handler to device with SLI-4
9406 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9407 * interrupt mode is enabled and there is an event in the HBA which requires
9408 * driver attention. This function invokes the slow-path interrupt attention
9409 * handling function and fast-path interrupt attention handling function in
9410 * turn to process the relevant HBA attention events. This function is called
9411 * without any lock held. It gets the hbalock to access and update SLI data
9414 * This function returns IRQ_HANDLED when interrupt is handled, else it
9418 lpfc_sli4_intr_handler(int irq, void *dev_id)
9420 struct lpfc_hba *phba;
9421 irqreturn_t sp_irq_rc, fp_irq_rc;
9422 bool fp_handled = false;
9425 /* Get the driver's phba structure from the dev_id */
9426 phba = (struct lpfc_hba *)dev_id;
9428 if (unlikely(!phba))
9432 * Invokes slow-path host attention interrupt handling as appropriate.
9434 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
9437 * Invoke fast-path host attention interrupt handling as appropriate.
9439 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
9440 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
9441 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
9442 if (fp_irq_rc == IRQ_HANDLED)
9446 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
9447 } /* lpfc_sli4_intr_handler */
9450 * lpfc_sli4_queue_free - free a queue structure and associated memory
9451 * @queue: The queue structure to free.
9453 * This function frees a queue structure and the DMAable memeory used for
9454 * the host resident queue. This function must be called after destroying the
9458 lpfc_sli4_queue_free(struct lpfc_queue *queue)
9460 struct lpfc_dmabuf *dmabuf;
9465 while (!list_empty(&queue->page_list)) {
9466 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
9468 dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE,
9469 dmabuf->virt, dmabuf->phys);
9477 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9478 * @phba: The HBA that this queue is being created on.
9479 * @entry_size: The size of each queue entry for this queue.
9480 * @entry count: The number of entries that this queue will handle.
9482 * This function allocates a queue structure and the DMAable memory used for
9483 * the host resident queue. This function must be called before creating the
9487 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
9488 uint32_t entry_count)
9490 struct lpfc_queue *queue;
9491 struct lpfc_dmabuf *dmabuf;
9492 int x, total_qe_count;
9496 queue = kzalloc(sizeof(struct lpfc_queue) +
9497 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
9500 queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE;
9501 INIT_LIST_HEAD(&queue->list);
9502 INIT_LIST_HEAD(&queue->page_list);
9503 INIT_LIST_HEAD(&queue->child_list);
9504 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
9505 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9508 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9509 PAGE_SIZE, &dmabuf->phys,
9511 if (!dmabuf->virt) {
9515 memset(dmabuf->virt, 0, PAGE_SIZE);
9516 dmabuf->buffer_tag = x;
9517 list_add_tail(&dmabuf->list, &queue->page_list);
9518 /* initialize queue's entry array */
9519 dma_pointer = dmabuf->virt;
9520 for (; total_qe_count < entry_count &&
9521 dma_pointer < (PAGE_SIZE + dmabuf->virt);
9522 total_qe_count++, dma_pointer += entry_size) {
9523 queue->qe[total_qe_count].address = dma_pointer;
9526 queue->entry_size = entry_size;
9527 queue->entry_count = entry_count;
9532 lpfc_sli4_queue_free(queue);
9537 * lpfc_eq_create - Create an Event Queue on the HBA
9538 * @phba: HBA structure that indicates port to create a queue on.
9539 * @eq: The queue structure to use to create the event queue.
9540 * @imax: The maximum interrupt per second limit.
9542 * This function creates an event queue, as detailed in @eq, on a port,
9543 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9545 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9546 * is used to get the entry count and entry size that are necessary to
9547 * determine the number of pages to allocate and use for this queue. This
9548 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9549 * event queue. This function is asynchronous and will wait for the mailbox
9550 * command to finish before continuing.
9552 * On success this function will return a zero. If unable to allocate enough
9553 * memory this function will return ENOMEM. If the queue create mailbox command
9554 * fails this function will return ENXIO.
9557 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
9559 struct lpfc_mbx_eq_create *eq_create;
9561 int rc, length, status = 0;
9562 struct lpfc_dmabuf *dmabuf;
9563 uint32_t shdr_status, shdr_add_status;
9564 union lpfc_sli4_cfg_shdr *shdr;
9567 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9570 length = (sizeof(struct lpfc_mbx_eq_create) -
9571 sizeof(struct lpfc_sli4_cfg_mhdr));
9572 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9573 LPFC_MBOX_OPCODE_EQ_CREATE,
9574 length, LPFC_SLI4_MBX_EMBED);
9575 eq_create = &mbox->u.mqe.un.eq_create;
9576 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
9578 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
9580 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
9581 /* Calculate delay multiper from maximum interrupt per second */
9582 dmult = LPFC_DMULT_CONST/imax - 1;
9583 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
9585 switch (eq->entry_count) {
9587 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9588 "0360 Unsupported EQ count. (%d)\n",
9590 if (eq->entry_count < 256)
9592 /* otherwise default to smallest count (drop through) */
9594 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9598 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9602 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9606 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9610 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9614 list_for_each_entry(dmabuf, &eq->page_list, list) {
9615 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9616 putPaddrLow(dmabuf->phys);
9617 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9618 putPaddrHigh(dmabuf->phys);
9620 mbox->vport = phba->pport;
9621 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9622 mbox->context1 = NULL;
9623 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9624 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
9625 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9626 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9627 if (shdr_status || shdr_add_status || rc) {
9628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9629 "2500 EQ_CREATE mailbox failed with "
9630 "status x%x add_status x%x, mbx status x%x\n",
9631 shdr_status, shdr_add_status, rc);
9635 eq->subtype = LPFC_NONE;
9636 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
9637 if (eq->queue_id == 0xFFFF)
9642 mempool_free(mbox, phba->mbox_mem_pool);
9647 * lpfc_cq_create - Create a Completion Queue on the HBA
9648 * @phba: HBA structure that indicates port to create a queue on.
9649 * @cq: The queue structure to use to create the completion queue.
9650 * @eq: The event queue to bind this completion queue to.
9652 * This function creates a completion queue, as detailed in @wq, on a port,
9653 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9655 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9656 * is used to get the entry count and entry size that are necessary to
9657 * determine the number of pages to allocate and use for this queue. The @eq
9658 * is used to indicate which event queue to bind this completion queue to. This
9659 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9660 * completion queue. This function is asynchronous and will wait for the mailbox
9661 * command to finish before continuing.
9663 * On success this function will return a zero. If unable to allocate enough
9664 * memory this function will return ENOMEM. If the queue create mailbox command
9665 * fails this function will return ENXIO.
9668 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
9669 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
9671 struct lpfc_mbx_cq_create *cq_create;
9672 struct lpfc_dmabuf *dmabuf;
9674 int rc, length, status = 0;
9675 uint32_t shdr_status, shdr_add_status;
9676 union lpfc_sli4_cfg_shdr *shdr;
9678 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9681 length = (sizeof(struct lpfc_mbx_cq_create) -
9682 sizeof(struct lpfc_sli4_cfg_mhdr));
9683 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9684 LPFC_MBOX_OPCODE_CQ_CREATE,
9685 length, LPFC_SLI4_MBX_EMBED);
9686 cq_create = &mbox->u.mqe.un.cq_create;
9687 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
9689 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
9690 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
9691 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
9692 switch (cq->entry_count) {
9694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9695 "0361 Unsupported CQ count. (%d)\n",
9697 if (cq->entry_count < 256)
9699 /* otherwise default to smallest count (drop through) */
9701 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9705 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9709 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9713 list_for_each_entry(dmabuf, &cq->page_list, list) {
9714 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9715 putPaddrLow(dmabuf->phys);
9716 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9717 putPaddrHigh(dmabuf->phys);
9719 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9721 /* The IOCTL status is embedded in the mailbox subheader. */
9722 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
9723 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9724 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9725 if (shdr_status || shdr_add_status || rc) {
9726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9727 "2501 CQ_CREATE mailbox failed with "
9728 "status x%x add_status x%x, mbx status x%x\n",
9729 shdr_status, shdr_add_status, rc);
9733 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9734 if (cq->queue_id == 0xFFFF) {
9738 /* link the cq onto the parent eq child list */
9739 list_add_tail(&cq->list, &eq->child_list);
9740 /* Set up completion queue's type and subtype */
9742 cq->subtype = subtype;
9743 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9748 mempool_free(mbox, phba->mbox_mem_pool);
9753 * lpfc_mq_create - Create a mailbox Queue on the HBA
9754 * @phba: HBA structure that indicates port to create a queue on.
9755 * @mq: The queue structure to use to create the mailbox queue.
9757 * This function creates a mailbox queue, as detailed in @mq, on a port,
9758 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
9760 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9761 * is used to get the entry count and entry size that are necessary to
9762 * determine the number of pages to allocate and use for this queue. This
9763 * function will send the MQ_CREATE mailbox command to the HBA to setup the
9764 * mailbox queue. This function is asynchronous and will wait for the mailbox
9765 * command to finish before continuing.
9767 * On success this function will return a zero. If unable to allocate enough
9768 * memory this function will return ENOMEM. If the queue create mailbox command
9769 * fails this function will return ENXIO.
9772 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
9773 struct lpfc_queue *cq, uint32_t subtype)
9775 struct lpfc_mbx_mq_create *mq_create;
9776 struct lpfc_dmabuf *dmabuf;
9778 int rc, length, status = 0;
9779 uint32_t shdr_status, shdr_add_status;
9780 union lpfc_sli4_cfg_shdr *shdr;
9782 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9785 length = (sizeof(struct lpfc_mbx_mq_create) -
9786 sizeof(struct lpfc_sli4_cfg_mhdr));
9787 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9788 LPFC_MBOX_OPCODE_MQ_CREATE,
9789 length, LPFC_SLI4_MBX_EMBED);
9790 mq_create = &mbox->u.mqe.un.mq_create;
9791 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
9793 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
9795 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
9796 switch (mq->entry_count) {
9798 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9799 "0362 Unsupported MQ count. (%d)\n",
9801 if (mq->entry_count < 16)
9803 /* otherwise default to smallest count (drop through) */
9805 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9809 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9813 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9817 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9821 list_for_each_entry(dmabuf, &mq->page_list, list) {
9822 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9823 putPaddrLow(dmabuf->phys);
9824 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9825 putPaddrHigh(dmabuf->phys);
9827 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9828 /* The IOCTL status is embedded in the mailbox subheader. */
9829 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
9830 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9831 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9832 if (shdr_status || shdr_add_status || rc) {
9833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9834 "2502 MQ_CREATE mailbox failed with "
9835 "status x%x add_status x%x, mbx status x%x\n",
9836 shdr_status, shdr_add_status, rc);
9840 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
9841 if (mq->queue_id == 0xFFFF) {
9846 mq->subtype = subtype;
9850 /* link the mq onto the parent cq child list */
9851 list_add_tail(&mq->list, &cq->child_list);
9853 mempool_free(mbox, phba->mbox_mem_pool);
9858 * lpfc_wq_create - Create a Work Queue on the HBA
9859 * @phba: HBA structure that indicates port to create a queue on.
9860 * @wq: The queue structure to use to create the work queue.
9861 * @cq: The completion queue to bind this work queue to.
9862 * @subtype: The subtype of the work queue indicating its functionality.
9864 * This function creates a work queue, as detailed in @wq, on a port, described
9865 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
9867 * The @phba struct is used to send mailbox command to HBA. The @wq struct
9868 * is used to get the entry count and entry size that are necessary to
9869 * determine the number of pages to allocate and use for this queue. The @cq
9870 * is used to indicate which completion queue to bind this work queue to. This
9871 * function will send the WQ_CREATE mailbox command to the HBA to setup the
9872 * work queue. This function is asynchronous and will wait for the mailbox
9873 * command to finish before continuing.
9875 * On success this function will return a zero. If unable to allocate enough
9876 * memory this function will return ENOMEM. If the queue create mailbox command
9877 * fails this function will return ENXIO.
9880 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
9881 struct lpfc_queue *cq, uint32_t subtype)
9883 struct lpfc_mbx_wq_create *wq_create;
9884 struct lpfc_dmabuf *dmabuf;
9886 int rc, length, status = 0;
9887 uint32_t shdr_status, shdr_add_status;
9888 union lpfc_sli4_cfg_shdr *shdr;
9890 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9893 length = (sizeof(struct lpfc_mbx_wq_create) -
9894 sizeof(struct lpfc_sli4_cfg_mhdr));
9895 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9896 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
9897 length, LPFC_SLI4_MBX_EMBED);
9898 wq_create = &mbox->u.mqe.un.wq_create;
9899 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
9901 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
9903 list_for_each_entry(dmabuf, &wq->page_list, list) {
9904 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9905 putPaddrLow(dmabuf->phys);
9906 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9907 putPaddrHigh(dmabuf->phys);
9909 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9910 /* The IOCTL status is embedded in the mailbox subheader. */
9911 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
9912 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9913 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9914 if (shdr_status || shdr_add_status || rc) {
9915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9916 "2503 WQ_CREATE mailbox failed with "
9917 "status x%x add_status x%x, mbx status x%x\n",
9918 shdr_status, shdr_add_status, rc);
9922 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
9923 if (wq->queue_id == 0xFFFF) {
9928 wq->subtype = subtype;
9932 /* link the wq onto the parent cq child list */
9933 list_add_tail(&wq->list, &cq->child_list);
9935 mempool_free(mbox, phba->mbox_mem_pool);
9940 * lpfc_rq_create - Create a Receive Queue on the HBA
9941 * @phba: HBA structure that indicates port to create a queue on.
9942 * @hrq: The queue structure to use to create the header receive queue.
9943 * @drq: The queue structure to use to create the data receive queue.
9944 * @cq: The completion queue to bind this work queue to.
9946 * This function creates a receive buffer queue pair , as detailed in @hrq and
9947 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
9950 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
9951 * struct is used to get the entry count that is necessary to determine the
9952 * number of pages to use for this queue. The @cq is used to indicate which
9953 * completion queue to bind received buffers that are posted to these queues to.
9954 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
9955 * receive queue pair. This function is asynchronous and will wait for the
9956 * mailbox command to finish before continuing.
9958 * On success this function will return a zero. If unable to allocate enough
9959 * memory this function will return ENOMEM. If the queue create mailbox command
9960 * fails this function will return ENXIO.
9963 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
9964 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
9966 struct lpfc_mbx_rq_create *rq_create;
9967 struct lpfc_dmabuf *dmabuf;
9969 int rc, length, status = 0;
9970 uint32_t shdr_status, shdr_add_status;
9971 union lpfc_sli4_cfg_shdr *shdr;
9973 if (hrq->entry_count != drq->entry_count)
9975 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9978 length = (sizeof(struct lpfc_mbx_rq_create) -
9979 sizeof(struct lpfc_sli4_cfg_mhdr));
9980 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9981 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
9982 length, LPFC_SLI4_MBX_EMBED);
9983 rq_create = &mbox->u.mqe.un.rq_create;
9984 switch (hrq->entry_count) {
9986 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9987 "2535 Unsupported RQ count. (%d)\n",
9989 if (hrq->entry_count < 512)
9991 /* otherwise default to smallest count (drop through) */
9993 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9994 LPFC_RQ_RING_SIZE_512);
9997 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9998 LPFC_RQ_RING_SIZE_1024);
10001 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10002 LPFC_RQ_RING_SIZE_2048);
10005 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10006 LPFC_RQ_RING_SIZE_4096);
10009 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10011 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10013 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10014 LPFC_HDR_BUF_SIZE);
10015 list_for_each_entry(dmabuf, &hrq->page_list, list) {
10016 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10017 putPaddrLow(dmabuf->phys);
10018 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10019 putPaddrHigh(dmabuf->phys);
10021 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10022 /* The IOCTL status is embedded in the mailbox subheader. */
10023 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10024 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10025 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10026 if (shdr_status || shdr_add_status || rc) {
10027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10028 "2504 RQ_CREATE mailbox failed with "
10029 "status x%x add_status x%x, mbx status x%x\n",
10030 shdr_status, shdr_add_status, rc);
10034 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10035 if (hrq->queue_id == 0xFFFF) {
10039 hrq->type = LPFC_HRQ;
10040 hrq->subtype = subtype;
10041 hrq->host_index = 0;
10042 hrq->hba_index = 0;
10044 /* now create the data queue */
10045 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10046 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10047 length, LPFC_SLI4_MBX_EMBED);
10048 switch (drq->entry_count) {
10050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10051 "2536 Unsupported RQ count. (%d)\n",
10053 if (drq->entry_count < 512)
10055 /* otherwise default to smallest count (drop through) */
10057 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10058 LPFC_RQ_RING_SIZE_512);
10061 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10062 LPFC_RQ_RING_SIZE_1024);
10065 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10066 LPFC_RQ_RING_SIZE_2048);
10069 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10070 LPFC_RQ_RING_SIZE_4096);
10073 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10075 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10077 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10078 LPFC_DATA_BUF_SIZE);
10079 list_for_each_entry(dmabuf, &drq->page_list, list) {
10080 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10081 putPaddrLow(dmabuf->phys);
10082 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10083 putPaddrHigh(dmabuf->phys);
10085 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10086 /* The IOCTL status is embedded in the mailbox subheader. */
10087 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10088 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10089 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10090 if (shdr_status || shdr_add_status || rc) {
10094 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10095 if (drq->queue_id == 0xFFFF) {
10099 drq->type = LPFC_DRQ;
10100 drq->subtype = subtype;
10101 drq->host_index = 0;
10102 drq->hba_index = 0;
10104 /* link the header and data RQs onto the parent cq child list */
10105 list_add_tail(&hrq->list, &cq->child_list);
10106 list_add_tail(&drq->list, &cq->child_list);
10109 mempool_free(mbox, phba->mbox_mem_pool);
10114 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10115 * @eq: The queue structure associated with the queue to destroy.
10117 * This function destroys a queue, as detailed in @eq by sending an mailbox
10118 * command, specific to the type of queue, to the HBA.
10120 * The @eq struct is used to get the queue ID of the queue to destroy.
10122 * On success this function will return a zero. If the queue destroy mailbox
10123 * command fails this function will return ENXIO.
10126 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10128 LPFC_MBOXQ_t *mbox;
10129 int rc, length, status = 0;
10130 uint32_t shdr_status, shdr_add_status;
10131 union lpfc_sli4_cfg_shdr *shdr;
10135 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10138 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10139 sizeof(struct lpfc_sli4_cfg_mhdr));
10140 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10141 LPFC_MBOX_OPCODE_EQ_DESTROY,
10142 length, LPFC_SLI4_MBX_EMBED);
10143 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10145 mbox->vport = eq->phba->pport;
10146 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10148 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10149 /* The IOCTL status is embedded in the mailbox subheader. */
10150 shdr = (union lpfc_sli4_cfg_shdr *)
10151 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10152 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10153 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10154 if (shdr_status || shdr_add_status || rc) {
10155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10156 "2505 EQ_DESTROY mailbox failed with "
10157 "status x%x add_status x%x, mbx status x%x\n",
10158 shdr_status, shdr_add_status, rc);
10162 /* Remove eq from any list */
10163 list_del_init(&eq->list);
10164 mempool_free(mbox, eq->phba->mbox_mem_pool);
10169 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10170 * @cq: The queue structure associated with the queue to destroy.
10172 * This function destroys a queue, as detailed in @cq by sending an mailbox
10173 * command, specific to the type of queue, to the HBA.
10175 * The @cq struct is used to get the queue ID of the queue to destroy.
10177 * On success this function will return a zero. If the queue destroy mailbox
10178 * command fails this function will return ENXIO.
10181 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
10183 LPFC_MBOXQ_t *mbox;
10184 int rc, length, status = 0;
10185 uint32_t shdr_status, shdr_add_status;
10186 union lpfc_sli4_cfg_shdr *shdr;
10190 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
10193 length = (sizeof(struct lpfc_mbx_cq_destroy) -
10194 sizeof(struct lpfc_sli4_cfg_mhdr));
10195 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10196 LPFC_MBOX_OPCODE_CQ_DESTROY,
10197 length, LPFC_SLI4_MBX_EMBED);
10198 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
10200 mbox->vport = cq->phba->pport;
10201 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10202 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
10203 /* The IOCTL status is embedded in the mailbox subheader. */
10204 shdr = (union lpfc_sli4_cfg_shdr *)
10205 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
10206 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10207 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10208 if (shdr_status || shdr_add_status || rc) {
10209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10210 "2506 CQ_DESTROY mailbox failed with "
10211 "status x%x add_status x%x, mbx status x%x\n",
10212 shdr_status, shdr_add_status, rc);
10215 /* Remove cq from any list */
10216 list_del_init(&cq->list);
10217 mempool_free(mbox, cq->phba->mbox_mem_pool);
10222 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10223 * @qm: The queue structure associated with the queue to destroy.
10225 * This function destroys a queue, as detailed in @mq by sending an mailbox
10226 * command, specific to the type of queue, to the HBA.
10228 * The @mq struct is used to get the queue ID of the queue to destroy.
10230 * On success this function will return a zero. If the queue destroy mailbox
10231 * command fails this function will return ENXIO.
10234 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
10236 LPFC_MBOXQ_t *mbox;
10237 int rc, length, status = 0;
10238 uint32_t shdr_status, shdr_add_status;
10239 union lpfc_sli4_cfg_shdr *shdr;
10243 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
10246 length = (sizeof(struct lpfc_mbx_mq_destroy) -
10247 sizeof(struct lpfc_sli4_cfg_mhdr));
10248 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10249 LPFC_MBOX_OPCODE_MQ_DESTROY,
10250 length, LPFC_SLI4_MBX_EMBED);
10251 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
10253 mbox->vport = mq->phba->pport;
10254 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10255 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
10256 /* The IOCTL status is embedded in the mailbox subheader. */
10257 shdr = (union lpfc_sli4_cfg_shdr *)
10258 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
10259 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10260 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10261 if (shdr_status || shdr_add_status || rc) {
10262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10263 "2507 MQ_DESTROY mailbox failed with "
10264 "status x%x add_status x%x, mbx status x%x\n",
10265 shdr_status, shdr_add_status, rc);
10268 /* Remove mq from any list */
10269 list_del_init(&mq->list);
10270 mempool_free(mbox, mq->phba->mbox_mem_pool);
10275 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10276 * @wq: The queue structure associated with the queue to destroy.
10278 * This function destroys a queue, as detailed in @wq by sending an mailbox
10279 * command, specific to the type of queue, to the HBA.
10281 * The @wq struct is used to get the queue ID of the queue to destroy.
10283 * On success this function will return a zero. If the queue destroy mailbox
10284 * command fails this function will return ENXIO.
10287 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
10289 LPFC_MBOXQ_t *mbox;
10290 int rc, length, status = 0;
10291 uint32_t shdr_status, shdr_add_status;
10292 union lpfc_sli4_cfg_shdr *shdr;
10296 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
10299 length = (sizeof(struct lpfc_mbx_wq_destroy) -
10300 sizeof(struct lpfc_sli4_cfg_mhdr));
10301 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10302 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
10303 length, LPFC_SLI4_MBX_EMBED);
10304 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
10306 mbox->vport = wq->phba->pport;
10307 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10308 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
10309 shdr = (union lpfc_sli4_cfg_shdr *)
10310 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
10311 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10312 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10313 if (shdr_status || shdr_add_status || rc) {
10314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10315 "2508 WQ_DESTROY mailbox failed with "
10316 "status x%x add_status x%x, mbx status x%x\n",
10317 shdr_status, shdr_add_status, rc);
10320 /* Remove wq from any list */
10321 list_del_init(&wq->list);
10322 mempool_free(mbox, wq->phba->mbox_mem_pool);
10327 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10328 * @rq: The queue structure associated with the queue to destroy.
10330 * This function destroys a queue, as detailed in @rq by sending an mailbox
10331 * command, specific to the type of queue, to the HBA.
10333 * The @rq struct is used to get the queue ID of the queue to destroy.
10335 * On success this function will return a zero. If the queue destroy mailbox
10336 * command fails this function will return ENXIO.
10339 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10340 struct lpfc_queue *drq)
10342 LPFC_MBOXQ_t *mbox;
10343 int rc, length, status = 0;
10344 uint32_t shdr_status, shdr_add_status;
10345 union lpfc_sli4_cfg_shdr *shdr;
10349 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
10352 length = (sizeof(struct lpfc_mbx_rq_destroy) -
10353 sizeof(struct mbox_header));
10354 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10355 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
10356 length, LPFC_SLI4_MBX_EMBED);
10357 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10359 mbox->vport = hrq->phba->pport;
10360 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10361 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
10362 /* The IOCTL status is embedded in the mailbox subheader. */
10363 shdr = (union lpfc_sli4_cfg_shdr *)
10364 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10365 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10366 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10367 if (shdr_status || shdr_add_status || rc) {
10368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10369 "2509 RQ_DESTROY mailbox failed with "
10370 "status x%x add_status x%x, mbx status x%x\n",
10371 shdr_status, shdr_add_status, rc);
10372 if (rc != MBX_TIMEOUT)
10373 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10376 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10378 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
10379 shdr = (union lpfc_sli4_cfg_shdr *)
10380 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10381 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10382 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10383 if (shdr_status || shdr_add_status || rc) {
10384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10385 "2510 RQ_DESTROY mailbox failed with "
10386 "status x%x add_status x%x, mbx status x%x\n",
10387 shdr_status, shdr_add_status, rc);
10390 list_del_init(&hrq->list);
10391 list_del_init(&drq->list);
10392 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10397 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10398 * @phba: The virtual port for which this call being executed.
10399 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10400 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10401 * @xritag: the xritag that ties this io to the SGL pages.
10403 * This routine will post the sgl pages for the IO that has the xritag
10404 * that is in the iocbq structure. The xritag is assigned during iocbq
10405 * creation and persists for as long as the driver is loaded.
10406 * if the caller has fewer than 256 scatter gather segments to map then
10407 * pdma_phys_addr1 should be 0.
10408 * If the caller needs to map more than 256 scatter gather segment then
10409 * pdma_phys_addr1 should be a valid physical address.
10410 * physical address for SGLs must be 64 byte aligned.
10411 * If you are going to map 2 SGL's then the first one must have 256 entries
10412 * the second sgl can have between 1 and 256 entries.
10416 * -ENXIO, -ENOMEM - Failure
10419 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
10420 dma_addr_t pdma_phys_addr0,
10421 dma_addr_t pdma_phys_addr1,
10424 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
10425 LPFC_MBOXQ_t *mbox;
10427 uint32_t shdr_status, shdr_add_status;
10428 union lpfc_sli4_cfg_shdr *shdr;
10430 if (xritag == NO_XRI) {
10431 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10432 "0364 Invalid param:\n");
10436 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10440 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10441 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
10442 sizeof(struct lpfc_mbx_post_sgl_pages) -
10443 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
10445 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
10446 &mbox->u.mqe.un.post_sgl_pages;
10447 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
10448 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
10450 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
10451 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
10452 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
10453 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
10455 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
10456 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
10457 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
10458 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
10459 if (!phba->sli4_hba.intr_enable)
10460 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10462 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10463 /* The IOCTL status is embedded in the mailbox subheader. */
10464 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
10465 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10466 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10467 if (rc != MBX_TIMEOUT)
10468 mempool_free(mbox, phba->mbox_mem_pool);
10469 if (shdr_status || shdr_add_status || rc) {
10470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10471 "2511 POST_SGL mailbox failed with "
10472 "status x%x add_status x%x, mbx status x%x\n",
10473 shdr_status, shdr_add_status, rc);
10479 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10480 * @phba: The virtual port for which this call being executed.
10482 * This routine will remove all of the sgl pages registered with the hba.
10486 * -ENXIO, -ENOMEM - Failure
10489 lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
10491 LPFC_MBOXQ_t *mbox;
10493 uint32_t shdr_status, shdr_add_status;
10494 union lpfc_sli4_cfg_shdr *shdr;
10496 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10500 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10501 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
10502 LPFC_SLI4_MBX_EMBED);
10503 if (!phba->sli4_hba.intr_enable)
10504 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10506 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10507 /* The IOCTL status is embedded in the mailbox subheader. */
10508 shdr = (union lpfc_sli4_cfg_shdr *)
10509 &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
10510 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10511 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10512 if (rc != MBX_TIMEOUT)
10513 mempool_free(mbox, phba->mbox_mem_pool);
10514 if (shdr_status || shdr_add_status || rc) {
10515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10516 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10517 "status x%x add_status x%x, mbx status x%x\n",
10518 shdr_status, shdr_add_status, rc);
10525 * lpfc_sli4_next_xritag - Get an xritag for the io
10526 * @phba: Pointer to HBA context object.
10528 * This function gets an xritag for the iocb. If there is no unused xritag
10529 * it will return 0xffff.
10530 * The function returns the allocated xritag if successful, else returns zero.
10531 * Zero is not a valid xritag.
10532 * The caller is not required to hold any lock.
10535 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
10539 spin_lock_irq(&phba->hbalock);
10540 xritag = phba->sli4_hba.next_xri;
10541 if ((xritag != (uint16_t) -1) && xritag <
10542 (phba->sli4_hba.max_cfg_param.max_xri
10543 + phba->sli4_hba.max_cfg_param.xri_base)) {
10544 phba->sli4_hba.next_xri++;
10545 phba->sli4_hba.max_cfg_param.xri_used++;
10546 spin_unlock_irq(&phba->hbalock);
10549 spin_unlock_irq(&phba->hbalock);
10550 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10551 "2004 Failed to allocate XRI.last XRITAG is %d"
10552 " Max XRI is %d, Used XRI is %d\n",
10553 phba->sli4_hba.next_xri,
10554 phba->sli4_hba.max_cfg_param.max_xri,
10555 phba->sli4_hba.max_cfg_param.xri_used);
10560 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10561 * @phba: pointer to lpfc hba data structure.
10563 * This routine is invoked to post a block of driver's sgl pages to the
10564 * HBA using non-embedded mailbox command. No Lock is held. This routine
10565 * is only called when the driver is loading and after all IO has been
10569 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
10571 struct lpfc_sglq *sglq_entry;
10572 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10573 struct sgl_page_pairs *sgl_pg_pairs;
10575 LPFC_MBOXQ_t *mbox;
10576 uint32_t reqlen, alloclen, pg_pairs;
10578 uint16_t xritag_start = 0;
10579 int els_xri_cnt, rc = 0;
10580 uint32_t shdr_status, shdr_add_status;
10581 union lpfc_sli4_cfg_shdr *shdr;
10583 /* The number of sgls to be posted */
10584 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
10586 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
10587 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10588 if (reqlen > PAGE_SIZE) {
10589 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10590 "2559 Block sgl registration required DMA "
10591 "size (%d) great than a page\n", reqlen);
10594 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10597 "2560 Failed to allocate mbox cmd memory\n");
10601 /* Allocate DMA memory and set up the non-embedded mailbox command */
10602 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10603 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10604 LPFC_SLI4_MBX_NEMBED);
10606 if (alloclen < reqlen) {
10607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10608 "0285 Allocated DMA memory size (%d) is "
10609 "less than the requested DMA memory "
10610 "size (%d)\n", alloclen, reqlen);
10611 lpfc_sli4_mbox_cmd_free(phba, mbox);
10614 /* Get the first SGE entry from the non-embedded DMA memory */
10615 viraddr = mbox->sge_array->addr[0];
10617 /* Set up the SGL pages in the non-embedded DMA pages */
10618 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10619 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10621 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
10622 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
10623 /* Set up the sge entry */
10624 sgl_pg_pairs->sgl_pg0_addr_lo =
10625 cpu_to_le32(putPaddrLow(sglq_entry->phys));
10626 sgl_pg_pairs->sgl_pg0_addr_hi =
10627 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
10628 sgl_pg_pairs->sgl_pg1_addr_lo =
10629 cpu_to_le32(putPaddrLow(0));
10630 sgl_pg_pairs->sgl_pg1_addr_hi =
10631 cpu_to_le32(putPaddrHigh(0));
10632 /* Keep the first xritag on the list */
10634 xritag_start = sglq_entry->sli4_xritag;
10637 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10638 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
10639 /* Perform endian conversion if necessary */
10640 sgl->word0 = cpu_to_le32(sgl->word0);
10642 if (!phba->sli4_hba.intr_enable)
10643 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10645 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10646 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10648 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10649 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10650 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10651 if (rc != MBX_TIMEOUT)
10652 lpfc_sli4_mbox_cmd_free(phba, mbox);
10653 if (shdr_status || shdr_add_status || rc) {
10654 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10655 "2513 POST_SGL_BLOCK mailbox command failed "
10656 "status x%x add_status x%x mbx status x%x\n",
10657 shdr_status, shdr_add_status, rc);
10664 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10665 * @phba: pointer to lpfc hba data structure.
10666 * @sblist: pointer to scsi buffer list.
10667 * @count: number of scsi buffers on the list.
10669 * This routine is invoked to post a block of @count scsi sgl pages from a
10670 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10675 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
10678 struct lpfc_scsi_buf *psb;
10679 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10680 struct sgl_page_pairs *sgl_pg_pairs;
10682 LPFC_MBOXQ_t *mbox;
10683 uint32_t reqlen, alloclen, pg_pairs;
10685 uint16_t xritag_start = 0;
10687 uint32_t shdr_status, shdr_add_status;
10688 dma_addr_t pdma_phys_bpl1;
10689 union lpfc_sli4_cfg_shdr *shdr;
10691 /* Calculate the requested length of the dma memory */
10692 reqlen = cnt * sizeof(struct sgl_page_pairs) +
10693 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10694 if (reqlen > PAGE_SIZE) {
10695 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10696 "0217 Block sgl registration required DMA "
10697 "size (%d) great than a page\n", reqlen);
10700 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10703 "0283 Failed to allocate mbox cmd memory\n");
10707 /* Allocate DMA memory and set up the non-embedded mailbox command */
10708 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10709 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10710 LPFC_SLI4_MBX_NEMBED);
10712 if (alloclen < reqlen) {
10713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10714 "2561 Allocated DMA memory size (%d) is "
10715 "less than the requested DMA memory "
10716 "size (%d)\n", alloclen, reqlen);
10717 lpfc_sli4_mbox_cmd_free(phba, mbox);
10720 /* Get the first SGE entry from the non-embedded DMA memory */
10721 viraddr = mbox->sge_array->addr[0];
10723 /* Set up the SGL pages in the non-embedded DMA pages */
10724 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10725 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10728 list_for_each_entry(psb, sblist, list) {
10729 /* Set up the sge entry */
10730 sgl_pg_pairs->sgl_pg0_addr_lo =
10731 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
10732 sgl_pg_pairs->sgl_pg0_addr_hi =
10733 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
10734 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
10735 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
10737 pdma_phys_bpl1 = 0;
10738 sgl_pg_pairs->sgl_pg1_addr_lo =
10739 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
10740 sgl_pg_pairs->sgl_pg1_addr_hi =
10741 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
10742 /* Keep the first xritag on the list */
10744 xritag_start = psb->cur_iocbq.sli4_xritag;
10748 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10749 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
10750 /* Perform endian conversion if necessary */
10751 sgl->word0 = cpu_to_le32(sgl->word0);
10753 if (!phba->sli4_hba.intr_enable)
10754 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10756 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10757 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10759 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10760 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10761 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10762 if (rc != MBX_TIMEOUT)
10763 lpfc_sli4_mbox_cmd_free(phba, mbox);
10764 if (shdr_status || shdr_add_status || rc) {
10765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10766 "2564 POST_SGL_BLOCK mailbox command failed "
10767 "status x%x add_status x%x mbx status x%x\n",
10768 shdr_status, shdr_add_status, rc);
10775 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
10776 * @phba: pointer to lpfc_hba struct that the frame was received on
10777 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10779 * This function checks the fields in the @fc_hdr to see if the FC frame is a
10780 * valid type of frame that the LPFC driver will handle. This function will
10781 * return a zero if the frame is a valid frame or a non zero value when the
10782 * frame does not pass the check.
10785 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
10787 char *rctl_names[] = FC_RCTL_NAMES_INIT;
10788 char *type_names[] = FC_TYPE_NAMES_INIT;
10789 struct fc_vft_header *fc_vft_hdr;
10791 switch (fc_hdr->fh_r_ctl) {
10792 case FC_RCTL_DD_UNCAT: /* uncategorized information */
10793 case FC_RCTL_DD_SOL_DATA: /* solicited data */
10794 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
10795 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
10796 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
10797 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
10798 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
10799 case FC_RCTL_DD_CMD_STATUS: /* command status */
10800 case FC_RCTL_ELS_REQ: /* extended link services request */
10801 case FC_RCTL_ELS_REP: /* extended link services reply */
10802 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
10803 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
10804 case FC_RCTL_BA_NOP: /* basic link service NOP */
10805 case FC_RCTL_BA_ABTS: /* basic link service abort */
10806 case FC_RCTL_BA_RMC: /* remove connection */
10807 case FC_RCTL_BA_ACC: /* basic accept */
10808 case FC_RCTL_BA_RJT: /* basic reject */
10809 case FC_RCTL_BA_PRMT:
10810 case FC_RCTL_ACK_1: /* acknowledge_1 */
10811 case FC_RCTL_ACK_0: /* acknowledge_0 */
10812 case FC_RCTL_P_RJT: /* port reject */
10813 case FC_RCTL_F_RJT: /* fabric reject */
10814 case FC_RCTL_P_BSY: /* port busy */
10815 case FC_RCTL_F_BSY: /* fabric busy to data frame */
10816 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
10817 case FC_RCTL_LCR: /* link credit reset */
10818 case FC_RCTL_END: /* end */
10820 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
10821 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10822 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
10823 return lpfc_fc_frame_check(phba, fc_hdr);
10827 switch (fc_hdr->fh_type) {
10838 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10839 "2538 Received frame rctl:%s type:%s\n",
10840 rctl_names[fc_hdr->fh_r_ctl],
10841 type_names[fc_hdr->fh_type]);
10844 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
10845 "2539 Dropped frame rctl:%s type:%s\n",
10846 rctl_names[fc_hdr->fh_r_ctl],
10847 type_names[fc_hdr->fh_type]);
10852 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
10853 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10855 * This function processes the FC header to retrieve the VFI from the VF
10856 * header, if one exists. This function will return the VFI if one exists
10857 * or 0 if no VSAN Header exists.
10860 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
10862 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10864 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
10866 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
10870 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
10871 * @phba: Pointer to the HBA structure to search for the vport on
10872 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10873 * @fcfi: The FC Fabric ID that the frame came from
10875 * This function searches the @phba for a vport that matches the content of the
10876 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
10877 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
10878 * returns the matching vport pointer or NULL if unable to match frame to a
10881 static struct lpfc_vport *
10882 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
10885 struct lpfc_vport **vports;
10886 struct lpfc_vport *vport = NULL;
10888 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
10889 fc_hdr->fh_d_id[1] << 8 |
10890 fc_hdr->fh_d_id[2]);
10892 vports = lpfc_create_vport_work_array(phba);
10893 if (vports != NULL)
10894 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
10895 if (phba->fcf.fcfi == fcfi &&
10896 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
10897 vports[i]->fc_myDID == did) {
10902 lpfc_destroy_vport_work_array(phba, vports);
10907 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
10908 * @vport: The vport to work on.
10910 * This function updates the receive sequence time stamp for this vport. The
10911 * receive sequence time stamp indicates the time that the last frame of the
10912 * the sequence that has been idle for the longest amount of time was received.
10913 * the driver uses this time stamp to indicate if any received sequences have
10917 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
10919 struct lpfc_dmabuf *h_buf;
10920 struct hbq_dmabuf *dmabuf = NULL;
10922 /* get the oldest sequence on the rcv list */
10923 h_buf = list_get_first(&vport->rcv_buffer_list,
10924 struct lpfc_dmabuf, list);
10927 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10928 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
10932 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
10933 * @vport: The vport that the received sequences were sent to.
10935 * This function cleans up all outstanding received sequences. This is called
10936 * by the driver when a link event or user action invalidates all the received
10940 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
10942 struct lpfc_dmabuf *h_buf, *hnext;
10943 struct lpfc_dmabuf *d_buf, *dnext;
10944 struct hbq_dmabuf *dmabuf = NULL;
10946 /* start with the oldest sequence on the rcv list */
10947 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10948 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10949 list_del_init(&dmabuf->hbuf.list);
10950 list_for_each_entry_safe(d_buf, dnext,
10951 &dmabuf->dbuf.list, list) {
10952 list_del_init(&d_buf->list);
10953 lpfc_in_buf_free(vport->phba, d_buf);
10955 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
10960 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
10961 * @vport: The vport that the received sequences were sent to.
10963 * This function determines whether any received sequences have timed out by
10964 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
10965 * indicates that there is at least one timed out sequence this routine will
10966 * go through the received sequences one at a time from most inactive to most
10967 * active to determine which ones need to be cleaned up. Once it has determined
10968 * that a sequence needs to be cleaned up it will simply free up the resources
10969 * without sending an abort.
10972 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
10974 struct lpfc_dmabuf *h_buf, *hnext;
10975 struct lpfc_dmabuf *d_buf, *dnext;
10976 struct hbq_dmabuf *dmabuf = NULL;
10977 unsigned long timeout;
10978 int abort_count = 0;
10980 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10981 vport->rcv_buffer_time_stamp);
10982 if (list_empty(&vport->rcv_buffer_list) ||
10983 time_before(jiffies, timeout))
10985 /* start with the oldest sequence on the rcv list */
10986 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10987 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10988 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10989 dmabuf->time_stamp);
10990 if (time_before(jiffies, timeout))
10993 list_del_init(&dmabuf->hbuf.list);
10994 list_for_each_entry_safe(d_buf, dnext,
10995 &dmabuf->dbuf.list, list) {
10996 list_del_init(&d_buf->list);
10997 lpfc_in_buf_free(vport->phba, d_buf);
10999 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
11002 lpfc_update_rcv_time_stamp(vport);
11006 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11007 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11009 * This function searches through the existing incomplete sequences that have
11010 * been sent to this @vport. If the frame matches one of the incomplete
11011 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11012 * make up that sequence. If no sequence is found that matches this frame then
11013 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11014 * This function returns a pointer to the first dmabuf in the sequence list that
11015 * the frame was linked to.
11017 static struct hbq_dmabuf *
11018 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
11020 struct fc_frame_header *new_hdr;
11021 struct fc_frame_header *temp_hdr;
11022 struct lpfc_dmabuf *d_buf;
11023 struct lpfc_dmabuf *h_buf;
11024 struct hbq_dmabuf *seq_dmabuf = NULL;
11025 struct hbq_dmabuf *temp_dmabuf = NULL;
11027 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11028 dmabuf->time_stamp = jiffies;
11029 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11030 /* Use the hdr_buf to find the sequence that this frame belongs to */
11031 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11032 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11033 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11034 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11035 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11037 /* found a pending sequence that matches this frame */
11038 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11043 * This indicates first frame received for this sequence.
11044 * Queue the buffer on the vport's rcv_buffer_list.
11046 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11047 lpfc_update_rcv_time_stamp(vport);
11050 temp_hdr = seq_dmabuf->hbuf.virt;
11051 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
11052 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
11053 list_del_init(&seq_dmabuf->hbuf.list);
11054 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11055 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11056 lpfc_update_rcv_time_stamp(vport);
11059 /* move this sequence to the tail to indicate a young sequence */
11060 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
11061 seq_dmabuf->time_stamp = jiffies;
11062 lpfc_update_rcv_time_stamp(vport);
11063 if (list_empty(&seq_dmabuf->dbuf.list)) {
11064 temp_hdr = dmabuf->hbuf.virt;
11065 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11068 /* find the correct place in the sequence to insert this frame */
11069 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
11070 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11071 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
11073 * If the frame's sequence count is greater than the frame on
11074 * the list then insert the frame right after this frame
11076 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
11077 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
11078 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
11086 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11087 * @vport: pointer to a vitural port
11088 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11090 * This function tries to abort from the partially assembed sequence, described
11091 * by the information from basic abbort @dmabuf. It checks to see whether such
11092 * partially assembled sequence held by the driver. If so, it shall free up all
11093 * the frames from the partially assembled sequence.
11096 * true -- if there is matching partially assembled sequence present and all
11097 * the frames freed with the sequence;
11098 * false -- if there is no matching partially assembled sequence present so
11099 * nothing got aborted in the lower layer driver
11102 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
11103 struct hbq_dmabuf *dmabuf)
11105 struct fc_frame_header *new_hdr;
11106 struct fc_frame_header *temp_hdr;
11107 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
11108 struct hbq_dmabuf *seq_dmabuf = NULL;
11110 /* Use the hdr_buf to find the sequence that matches this frame */
11111 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11112 INIT_LIST_HEAD(&dmabuf->hbuf.list);
11113 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11114 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11115 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11116 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11117 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11118 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11120 /* found a pending sequence that matches this frame */
11121 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11125 /* Free up all the frames from the partially assembled sequence */
11127 list_for_each_entry_safe(d_buf, n_buf,
11128 &seq_dmabuf->dbuf.list, list) {
11129 list_del_init(&d_buf->list);
11130 lpfc_in_buf_free(vport->phba, d_buf);
11138 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11139 * @phba: Pointer to HBA context object.
11140 * @cmd_iocbq: pointer to the command iocbq structure.
11141 * @rsp_iocbq: pointer to the response iocbq structure.
11143 * This function handles the sequence abort accept iocb command complete
11144 * event. It properly releases the memory allocated to the sequence abort
11148 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
11149 struct lpfc_iocbq *cmd_iocbq,
11150 struct lpfc_iocbq *rsp_iocbq)
11153 lpfc_sli_release_iocbq(phba, cmd_iocbq);
11157 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11158 * @phba: Pointer to HBA context object.
11159 * @fc_hdr: pointer to a FC frame header.
11161 * This function sends a basic accept to a previous unsol sequence abort
11162 * event after aborting the sequence handling.
11165 lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
11166 struct fc_frame_header *fc_hdr)
11168 struct lpfc_iocbq *ctiocb = NULL;
11169 struct lpfc_nodelist *ndlp;
11170 uint16_t oxid, rxid;
11171 uint32_t sid, fctl;
11174 if (!lpfc_is_link_up(phba))
11177 sid = sli4_sid_from_fc_hdr(fc_hdr);
11178 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
11179 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
11181 ndlp = lpfc_findnode_did(phba->pport, sid);
11183 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11184 "1268 Find ndlp returned NULL for oxid:x%x "
11185 "SID:x%x\n", oxid, sid);
11189 /* Allocate buffer for acc iocb */
11190 ctiocb = lpfc_sli_get_iocbq(phba);
11194 /* Extract the F_CTL field from FC_HDR */
11195 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
11197 icmd = &ctiocb->iocb;
11198 icmd->un.xseq64.bdl.bdeSize = 0;
11199 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
11200 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11201 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
11202 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
11204 /* Fill in the rest of iocb fields */
11205 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
11206 icmd->ulpBdeCount = 0;
11208 icmd->ulpClass = CLASS3;
11209 icmd->ulpContext = ndlp->nlp_rpi;
11211 ctiocb->iocb_cmpl = NULL;
11212 ctiocb->vport = phba->pport;
11213 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
11215 if (fctl & FC_FC_EX_CTX) {
11216 /* ABTS sent by responder to CT exchange, construction
11217 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11218 * field and RX_ID from ABTS for RX_ID field.
11220 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
11221 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
11222 ctiocb->sli4_xritag = oxid;
11224 /* ABTS sent by initiator to CT exchange, construction
11225 * of BA_ACC will need to allocate a new XRI as for the
11226 * XRI_TAG and RX_ID fields.
11228 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
11229 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
11230 ctiocb->sli4_xritag = NO_XRI;
11232 bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
11234 /* Xmit CT abts accept on exchange <xid> */
11235 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11236 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11237 CMD_XMIT_BLS_RSP64_CX, phba->link_state);
11238 lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
11242 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11243 * @vport: Pointer to the vport on which this sequence was received
11244 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11246 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11247 * receive sequence is only partially assembed by the driver, it shall abort
11248 * the partially assembled frames for the sequence. Otherwise, if the
11249 * unsolicited receive sequence has been completely assembled and passed to
11250 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11251 * unsolicited sequence has been aborted. After that, it will issue a basic
11252 * accept to accept the abort.
11255 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
11256 struct hbq_dmabuf *dmabuf)
11258 struct lpfc_hba *phba = vport->phba;
11259 struct fc_frame_header fc_hdr;
11263 /* Make a copy of fc_hdr before the dmabuf being released */
11264 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
11265 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
11267 if (fctl & FC_FC_EX_CTX) {
11269 * ABTS sent by responder to exchange, just free the buffer
11271 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11274 * ABTS sent by initiator to exchange, need to do cleanup
11276 /* Try to abort partially assembled seq */
11277 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
11279 /* Send abort to ULP if partially seq abort failed */
11280 if (abts_par == false)
11281 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
11283 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11285 /* Send basic accept (BA_ACC) to the abort requester */
11286 lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
11290 * lpfc_seq_complete - Indicates if a sequence is complete
11291 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11293 * This function checks the sequence, starting with the frame described by
11294 * @dmabuf, to see if all the frames associated with this sequence are present.
11295 * the frames associated with this sequence are linked to the @dmabuf using the
11296 * dbuf list. This function looks for two major things. 1) That the first frame
11297 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11298 * set. 3) That there are no holes in the sequence count. The function will
11299 * return 1 when the sequence is complete, otherwise it will return 0.
11302 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
11304 struct fc_frame_header *hdr;
11305 struct lpfc_dmabuf *d_buf;
11306 struct hbq_dmabuf *seq_dmabuf;
11310 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11311 /* make sure first fame of sequence has a sequence count of zero */
11312 if (hdr->fh_seq_cnt != seq_count)
11314 fctl = (hdr->fh_f_ctl[0] << 16 |
11315 hdr->fh_f_ctl[1] << 8 |
11317 /* If last frame of sequence we can return success. */
11318 if (fctl & FC_FC_END_SEQ)
11320 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
11321 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11322 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11323 /* If there is a hole in the sequence count then fail. */
11324 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
11326 fctl = (hdr->fh_f_ctl[0] << 16 |
11327 hdr->fh_f_ctl[1] << 8 |
11329 /* If last frame of sequence we can return success. */
11330 if (fctl & FC_FC_END_SEQ)
11337 * lpfc_prep_seq - Prep sequence for ULP processing
11338 * @vport: Pointer to the vport on which this sequence was received
11339 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11341 * This function takes a sequence, described by a list of frames, and creates
11342 * a list of iocbq structures to describe the sequence. This iocbq list will be
11343 * used to issue to the generic unsolicited sequence handler. This routine
11344 * returns a pointer to the first iocbq in the list. If the function is unable
11345 * to allocate an iocbq then it throw out the received frames that were not
11346 * able to be described and return a pointer to the first iocbq. If unable to
11347 * allocate any iocbqs (including the first) this function will return NULL.
11349 static struct lpfc_iocbq *
11350 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
11352 struct lpfc_dmabuf *d_buf, *n_buf;
11353 struct lpfc_iocbq *first_iocbq, *iocbq;
11354 struct fc_frame_header *fc_hdr;
11356 struct ulp_bde64 *pbde;
11358 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11359 /* remove from receive buffer list */
11360 list_del_init(&seq_dmabuf->hbuf.list);
11361 lpfc_update_rcv_time_stamp(vport);
11362 /* get the Remote Port's SID */
11363 sid = sli4_sid_from_fc_hdr(fc_hdr);
11364 /* Get an iocbq struct to fill in. */
11365 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
11367 /* Initialize the first IOCB. */
11368 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
11369 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
11370 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
11371 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
11372 first_iocbq->iocb.unsli3.rcvsli3.vpi =
11373 vport->vpi + vport->phba->vpi_base;
11374 /* put the first buffer into the first IOCBq */
11375 first_iocbq->context2 = &seq_dmabuf->dbuf;
11376 first_iocbq->context3 = NULL;
11377 first_iocbq->iocb.ulpBdeCount = 1;
11378 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11379 LPFC_DATA_BUF_SIZE;
11380 first_iocbq->iocb.un.rcvels.remoteID = sid;
11381 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11382 bf_get(lpfc_rcqe_length,
11383 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11385 iocbq = first_iocbq;
11387 * Each IOCBq can have two Buffers assigned, so go through the list
11388 * of buffers for this sequence and save two buffers in each IOCBq
11390 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
11392 lpfc_in_buf_free(vport->phba, d_buf);
11395 if (!iocbq->context3) {
11396 iocbq->context3 = d_buf;
11397 iocbq->iocb.ulpBdeCount++;
11398 pbde = (struct ulp_bde64 *)
11399 &iocbq->iocb.unsli3.sli3Words[4];
11400 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
11401 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11402 bf_get(lpfc_rcqe_length,
11403 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11405 iocbq = lpfc_sli_get_iocbq(vport->phba);
11408 first_iocbq->iocb.ulpStatus =
11409 IOSTAT_FCP_RSP_ERROR;
11410 first_iocbq->iocb.un.ulpWord[4] =
11411 IOERR_NO_RESOURCES;
11413 lpfc_in_buf_free(vport->phba, d_buf);
11416 iocbq->context2 = d_buf;
11417 iocbq->context3 = NULL;
11418 iocbq->iocb.ulpBdeCount = 1;
11419 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11420 LPFC_DATA_BUF_SIZE;
11421 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11422 bf_get(lpfc_rcqe_length,
11423 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11424 iocbq->iocb.un.rcvels.remoteID = sid;
11425 list_add_tail(&iocbq->list, &first_iocbq->list);
11428 return first_iocbq;
11432 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
11433 struct hbq_dmabuf *seq_dmabuf)
11435 struct fc_frame_header *fc_hdr;
11436 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
11437 struct lpfc_hba *phba = vport->phba;
11439 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11440 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
11442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11443 "2707 Ring %d handler: Failed to allocate "
11444 "iocb Rctl x%x Type x%x received\n",
11446 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11449 if (!lpfc_complete_unsol_iocb(phba,
11450 &phba->sli.ring[LPFC_ELS_RING],
11451 iocbq, fc_hdr->fh_r_ctl,
11453 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11454 "2540 Ring %d handler: unexpected Rctl "
11455 "x%x Type x%x received\n",
11457 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11459 /* Free iocb created in lpfc_prep_seq */
11460 list_for_each_entry_safe(curr_iocb, next_iocb,
11461 &iocbq->list, list) {
11462 list_del_init(&curr_iocb->list);
11463 lpfc_sli_release_iocbq(phba, curr_iocb);
11465 lpfc_sli_release_iocbq(phba, iocbq);
11469 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11470 * @phba: Pointer to HBA context object.
11472 * This function is called with no lock held. This function processes all
11473 * the received buffers and gives it to upper layers when a received buffer
11474 * indicates that it is the final frame in the sequence. The interrupt
11475 * service routine processes received buffers at interrupt contexts and adds
11476 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11477 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11478 * appropriate receive function when the final frame in a sequence is received.
11481 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
11482 struct hbq_dmabuf *dmabuf)
11484 struct hbq_dmabuf *seq_dmabuf;
11485 struct fc_frame_header *fc_hdr;
11486 struct lpfc_vport *vport;
11489 /* Process each received buffer */
11490 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11491 /* check to see if this a valid type of frame */
11492 if (lpfc_fc_frame_check(phba, fc_hdr)) {
11493 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11496 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
11497 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
11498 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
11499 /* throw out the frame */
11500 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11503 /* Handle the basic abort sequence (BA_ABTS) event */
11504 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
11505 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
11509 /* Link this frame */
11510 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
11512 /* unable to add frame to vport - throw it out */
11513 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11516 /* If not last frame in sequence continue processing frames. */
11517 if (!lpfc_seq_complete(seq_dmabuf))
11520 /* Send the complete sequence to the upper layer protocol */
11521 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
11525 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11526 * @phba: pointer to lpfc hba data structure.
11528 * This routine is invoked to post rpi header templates to the
11529 * HBA consistent with the SLI-4 interface spec. This routine
11530 * posts a PAGE_SIZE memory region to the port to hold up to
11531 * PAGE_SIZE modulo 64 rpi context headers.
11533 * This routine does not require any locks. It's usage is expected
11534 * to be driver load or reset recovery when the driver is
11539 * EIO - The mailbox failed to complete successfully.
11540 * When this error occurs, the driver is not guaranteed
11541 * to have any rpi regions posted to the device and
11542 * must either attempt to repost the regions or take a
11546 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
11548 struct lpfc_rpi_hdr *rpi_page;
11551 /* Post all rpi memory regions to the port. */
11552 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
11553 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
11554 if (rc != MBX_SUCCESS) {
11555 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11556 "2008 Error %d posting all rpi "
11567 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11568 * @phba: pointer to lpfc hba data structure.
11569 * @rpi_page: pointer to the rpi memory region.
11571 * This routine is invoked to post a single rpi header to the
11572 * HBA consistent with the SLI-4 interface spec. This memory region
11573 * maps up to 64 rpi context regions.
11577 * ENOMEM - No available memory
11578 * EIO - The mailbox failed to complete successfully.
11581 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
11583 LPFC_MBOXQ_t *mboxq;
11584 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
11587 uint32_t shdr_status, shdr_add_status;
11588 union lpfc_sli4_cfg_shdr *shdr;
11590 /* The port is notified of the header region via a mailbox command. */
11591 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11593 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11594 "2001 Unable to allocate memory for issuing "
11595 "SLI_CONFIG_SPECIAL mailbox command\n");
11599 /* Post all rpi memory regions to the port. */
11600 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
11601 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11602 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11603 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
11604 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
11605 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
11606 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
11607 hdr_tmpl, rpi_page->page_count);
11608 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
11609 rpi_page->start_rpi);
11610 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
11611 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
11612 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11613 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
11614 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11615 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11616 if (rc != MBX_TIMEOUT)
11617 mempool_free(mboxq, phba->mbox_mem_pool);
11618 if (shdr_status || shdr_add_status || rc) {
11619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11620 "2514 POST_RPI_HDR mailbox failed with "
11621 "status x%x add_status x%x, mbx status x%x\n",
11622 shdr_status, shdr_add_status, rc);
11629 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11630 * @phba: pointer to lpfc hba data structure.
11632 * This routine is invoked to post rpi header templates to the
11633 * HBA consistent with the SLI-4 interface spec. This routine
11634 * posts a PAGE_SIZE memory region to the port to hold up to
11635 * PAGE_SIZE modulo 64 rpi context headers.
11638 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
11639 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11642 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
11645 uint16_t max_rpi, rpi_base, rpi_limit;
11646 uint16_t rpi_remaining;
11647 struct lpfc_rpi_hdr *rpi_hdr;
11649 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
11650 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
11651 rpi_limit = phba->sli4_hba.next_rpi;
11654 * The valid rpi range is not guaranteed to be zero-based. Start
11655 * the search at the rpi_base as reported by the port.
11657 spin_lock_irq(&phba->hbalock);
11658 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
11659 if (rpi >= rpi_limit || rpi < rpi_base)
11660 rpi = LPFC_RPI_ALLOC_ERROR;
11662 set_bit(rpi, phba->sli4_hba.rpi_bmask);
11663 phba->sli4_hba.max_cfg_param.rpi_used++;
11664 phba->sli4_hba.rpi_count++;
11668 * Don't try to allocate more rpi header regions if the device limit
11669 * on available rpis max has been exhausted.
11671 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
11672 (phba->sli4_hba.rpi_count >= max_rpi)) {
11673 spin_unlock_irq(&phba->hbalock);
11678 * If the driver is running low on rpi resources, allocate another
11679 * page now. Note that the next_rpi value is used because
11680 * it represents how many are actually in use whereas max_rpi notes
11681 * how many are supported max by the device.
11683 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
11684 phba->sli4_hba.rpi_count;
11685 spin_unlock_irq(&phba->hbalock);
11686 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
11687 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
11689 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11690 "2002 Error Could not grow rpi "
11693 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
11701 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11702 * @phba: pointer to lpfc hba data structure.
11704 * This routine is invoked to release an rpi to the pool of
11705 * available rpis maintained by the driver.
11708 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11710 spin_lock_irq(&phba->hbalock);
11711 clear_bit(rpi, phba->sli4_hba.rpi_bmask);
11712 phba->sli4_hba.rpi_count--;
11713 phba->sli4_hba.max_cfg_param.rpi_used--;
11714 spin_unlock_irq(&phba->hbalock);
11718 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11719 * @phba: pointer to lpfc hba data structure.
11721 * This routine is invoked to remove the memory region that
11722 * provided rpi via a bitmask.
11725 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
11727 kfree(phba->sli4_hba.rpi_bmask);
11731 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
11732 * @phba: pointer to lpfc hba data structure.
11734 * This routine is invoked to remove the memory region that
11735 * provided rpi via a bitmask.
11738 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
11740 LPFC_MBOXQ_t *mboxq;
11741 struct lpfc_hba *phba = ndlp->phba;
11744 /* The port is notified of the header region via a mailbox command. */
11745 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11749 /* Post all rpi memory regions to the port. */
11750 lpfc_resume_rpi(mboxq, ndlp);
11751 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11752 if (rc == MBX_NOT_FINISHED) {
11753 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11754 "2010 Resume RPI Mailbox failed "
11755 "status %d, mbxStatus x%x\n", rc,
11756 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11757 mempool_free(mboxq, phba->mbox_mem_pool);
11764 * lpfc_sli4_init_vpi - Initialize a vpi with the port
11765 * @phba: pointer to lpfc hba data structure.
11766 * @vpi: vpi value to activate with the port.
11768 * This routine is invoked to activate a vpi with the
11769 * port when the host intends to use vports with a
11774 * -Evalue otherwise
11777 lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
11779 LPFC_MBOXQ_t *mboxq;
11781 int retval = MBX_SUCCESS;
11786 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11789 lpfc_init_vpi(phba, mboxq, vpi);
11790 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
11791 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11792 if (rc != MBX_SUCCESS) {
11793 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11794 "2022 INIT VPI Mailbox failed "
11795 "status %d, mbxStatus x%x\n", rc,
11796 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11799 if (rc != MBX_TIMEOUT)
11800 mempool_free(mboxq, phba->mbox_mem_pool);
11806 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
11807 * @phba: pointer to lpfc hba data structure.
11808 * @mboxq: Pointer to mailbox object.
11810 * This routine is invoked to manually add a single FCF record. The caller
11811 * must pass a completely initialized FCF_Record. This routine takes
11812 * care of the nonembedded mailbox operations.
11815 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11818 union lpfc_sli4_cfg_shdr *shdr;
11819 uint32_t shdr_status, shdr_add_status;
11821 virt_addr = mboxq->sge_array->addr[0];
11822 /* The IOCTL status is embedded in the mailbox subheader. */
11823 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
11824 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11825 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11827 if ((shdr_status || shdr_add_status) &&
11828 (shdr_status != STATUS_FCF_IN_USE))
11829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11830 "2558 ADD_FCF_RECORD mailbox failed with "
11831 "status x%x add_status x%x\n",
11832 shdr_status, shdr_add_status);
11834 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11838 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
11839 * @phba: pointer to lpfc hba data structure.
11840 * @fcf_record: pointer to the initialized fcf record to add.
11842 * This routine is invoked to manually add a single FCF record. The caller
11843 * must pass a completely initialized FCF_Record. This routine takes
11844 * care of the nonembedded mailbox operations.
11847 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
11850 LPFC_MBOXQ_t *mboxq;
11853 dma_addr_t phys_addr;
11854 struct lpfc_mbx_sge sge;
11855 uint32_t alloc_len, req_len;
11858 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11861 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
11865 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
11868 /* Allocate DMA memory and set up the non-embedded mailbox command */
11869 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11870 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
11871 req_len, LPFC_SLI4_MBX_NEMBED);
11872 if (alloc_len < req_len) {
11873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11874 "2523 Allocated DMA memory size (x%x) is "
11875 "less than the requested DMA memory "
11876 "size (x%x)\n", alloc_len, req_len);
11877 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11882 * Get the first SGE entry from the non-embedded DMA memory. This
11883 * routine only uses a single SGE.
11885 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11886 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
11887 virt_addr = mboxq->sge_array->addr[0];
11889 * Configure the FCF record for FCFI 0. This is the driver's
11890 * hardcoded default and gets used in nonFIP mode.
11892 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
11893 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
11894 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
11897 * Copy the fcf_index and the FCF Record Data. The data starts after
11898 * the FCoE header plus word10. The data copy needs to be endian
11901 bytep += sizeof(uint32_t);
11902 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
11903 mboxq->vport = phba->pport;
11904 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
11905 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11906 if (rc == MBX_NOT_FINISHED) {
11907 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11908 "2515 ADD_FCF_RECORD mailbox failed with "
11909 "status 0x%x\n", rc);
11910 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11919 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
11920 * @phba: pointer to lpfc hba data structure.
11921 * @fcf_record: pointer to the fcf record to write the default data.
11922 * @fcf_index: FCF table entry index.
11924 * This routine is invoked to build the driver's default FCF record. The
11925 * values used are hardcoded. This routine handles memory initialization.
11929 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
11930 struct fcf_record *fcf_record,
11931 uint16_t fcf_index)
11933 memset(fcf_record, 0, sizeof(struct fcf_record));
11934 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
11935 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
11936 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
11937 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
11938 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
11939 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
11940 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
11941 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
11942 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
11943 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
11944 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
11945 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
11946 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
11947 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
11948 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
11949 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
11950 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
11951 /* Set the VLAN bit map */
11952 if (phba->valid_vlan) {
11953 fcf_record->vlan_bitmap[phba->vlan_id / 8]
11954 = 1 << (phba->vlan_id % 8);
11959 * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
11960 * @phba: pointer to lpfc hba data structure.
11961 * @fcf_index: FCF table entry offset.
11963 * This routine is invoked to read up to @fcf_num of FCF record from the
11964 * device starting with the given @fcf_index.
11967 lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
11970 LPFC_MBOXQ_t *mboxq;
11972 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
11973 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11976 "2000 Failed to allocate mbox for "
11981 /* Construct the read FCF record mailbox command */
11982 rc = lpfc_sli4_mbx_read_fcf_record(phba, mboxq, fcf_index);
11987 /* Issue the mailbox command asynchronously */
11988 mboxq->vport = phba->pport;
11989 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
11990 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11991 if (rc == MBX_NOT_FINISHED)
11994 spin_lock_irq(&phba->hbalock);
11995 phba->hba_flag |= FCF_DISC_INPROGRESS;
11996 spin_unlock_irq(&phba->hbalock);
12002 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12003 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
12004 spin_lock_irq(&phba->hbalock);
12005 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
12006 spin_unlock_irq(&phba->hbalock);
12012 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
12013 * @phba: pointer to lpfc hba data structure.
12015 * This routine is the completion routine for the rediscover FCF table mailbox
12016 * command. If the mailbox command returned failure, it will try to stop the
12017 * FCF rediscover wait timer.
12020 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
12022 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12023 uint32_t shdr_status, shdr_add_status;
12025 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12027 shdr_status = bf_get(lpfc_mbox_hdr_status,
12028 &redisc_fcf->header.cfg_shdr.response);
12029 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
12030 &redisc_fcf->header.cfg_shdr.response);
12031 if (shdr_status || shdr_add_status) {
12032 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12033 "2746 Requesting for FCF rediscovery failed "
12034 "status x%x add_status x%x\n",
12035 shdr_status, shdr_add_status);
12037 * Request failed, last resort to re-try current
12038 * registered FCF entry
12040 lpfc_retry_pport_discovery(phba);
12043 * Start FCF rediscovery wait timer for pending FCF
12044 * before rescan FCF record table.
12046 lpfc_fcf_redisc_wait_start_timer(phba);
12048 mempool_free(mbox, phba->mbox_mem_pool);
12052 * lpfc_sli4_redisc_all_fcf - Request to rediscover entire FCF table by port.
12053 * @phba: pointer to lpfc hba data structure.
12055 * This routine is invoked to request for rediscovery of the entire FCF table
12059 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
12061 LPFC_MBOXQ_t *mbox;
12062 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12065 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12067 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12068 "2745 Failed to allocate mbox for "
12069 "requesting FCF rediscover.\n");
12073 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
12074 sizeof(struct lpfc_sli4_cfg_mhdr));
12075 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12076 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
12077 length, LPFC_SLI4_MBX_EMBED);
12079 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12080 /* Set count to 0 for invalidating the entire FCF database */
12081 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
12083 /* Issue the mailbox command asynchronously */
12084 mbox->vport = phba->pport;
12085 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
12086 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
12088 if (rc == MBX_NOT_FINISHED) {
12089 mempool_free(mbox, phba->mbox_mem_pool);
12096 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12097 * @phba: pointer to lpfc hba data structure.
12099 * This function read region 23 and parse TLV for port status to
12100 * decide if the user disaled the port. If the TLV indicates the
12101 * port is disabled, the hba_flag is set accordingly.
12104 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
12106 LPFC_MBOXQ_t *pmb = NULL;
12108 uint8_t *rgn23_data = NULL;
12109 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
12112 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12115 "2600 lpfc_sli_read_serdes_param failed to"
12116 " allocate mailbox memory\n");
12121 /* Get adapter Region 23 data */
12122 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
12127 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
12128 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12130 if (rc != MBX_SUCCESS) {
12131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12132 "2601 lpfc_sli_read_link_ste failed to"
12133 " read config region 23 rc 0x%x Status 0x%x\n",
12134 rc, mb->mbxStatus);
12135 mb->un.varDmp.word_cnt = 0;
12138 * dump mem may return a zero when finished or we got a
12139 * mailbox error, either way we are done.
12141 if (mb->un.varDmp.word_cnt == 0)
12143 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
12144 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
12146 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
12147 rgn23_data + offset,
12148 mb->un.varDmp.word_cnt);
12149 offset += mb->un.varDmp.word_cnt;
12150 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
12152 data_size = offset;
12158 /* Check the region signature first */
12159 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
12160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12161 "2619 Config region 23 has bad signature\n");
12166 /* Check the data structure version */
12167 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
12168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12169 "2620 Config region 23 has bad version\n");
12174 /* Parse TLV entries in the region */
12175 while (offset < data_size) {
12176 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
12179 * If the TLV is not driver specific TLV or driver id is
12180 * not linux driver id, skip the record.
12182 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
12183 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
12184 (rgn23_data[offset + 3] != 0)) {
12185 offset += rgn23_data[offset + 1] * 4 + 4;
12189 /* Driver found a driver specific TLV in the config region */
12190 sub_tlv_len = rgn23_data[offset + 1] * 4;
12195 * Search for configured port state sub-TLV.
12197 while ((offset < data_size) &&
12198 (tlv_offset < sub_tlv_len)) {
12199 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
12204 if (rgn23_data[offset] != PORT_STE_TYPE) {
12205 offset += rgn23_data[offset + 1] * 4 + 4;
12206 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
12210 /* This HBA contains PORT_STE configured */
12211 if (!rgn23_data[offset + 2])
12212 phba->hba_flag |= LINK_DISABLED;
12219 mempool_free(pmb, phba->mbox_mem_pool);
12225 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12226 * @vport: pointer to vport data structure.
12228 * This function iterate through the mailboxq and clean up all REG_LOGIN
12229 * and REG_VPI mailbox commands associated with the vport. This function
12230 * is called when driver want to restart discovery of the vport due to
12231 * a Clear Virtual Link event.
12234 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
12236 struct lpfc_hba *phba = vport->phba;
12237 LPFC_MBOXQ_t *mb, *nextmb;
12238 struct lpfc_dmabuf *mp;
12240 spin_lock_irq(&phba->hbalock);
12241 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
12242 if (mb->vport != vport)
12245 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
12246 (mb->u.mb.mbxCommand != MBX_REG_VPI))
12249 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
12250 mp = (struct lpfc_dmabuf *) (mb->context1);
12252 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
12256 list_del(&mb->list);
12257 mempool_free(mb, phba->mbox_mem_pool);
12259 mb = phba->sli.mbox_active;
12260 if (mb && (mb->vport == vport)) {
12261 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
12262 (mb->u.mb.mbxCommand == MBX_REG_VPI))
12263 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12265 spin_unlock_irq(&phba->hbalock);