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_DRIVER_ABORTED
584 && ((iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
585 && (iocbq->iocb.un.ulpWord[4]
586 == IOERR_ABORT_REQUESTED))) {
587 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
589 list_add(&sglq->list,
590 &phba->sli4_hba.lpfc_abts_els_sgl_list);
591 spin_unlock_irqrestore(
592 &phba->sli4_hba.abts_sgl_list_lock, iflag);
594 list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
599 * Clean all volatile data fields, preserve iotag and node struct.
601 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
602 iocbq->sli4_xritag = NO_XRI;
603 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
607 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
608 * @phba: Pointer to HBA context object.
609 * @iocbq: Pointer to driver iocb object.
611 * This function is called with hbalock held to release driver
612 * iocb object to the iocb pool. The iotag in the iocb object
613 * does not change for each use of the iocb object. This function
614 * clears all other fields of the iocb object when it is freed.
617 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
619 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
622 * Clean all volatile data fields, preserve iotag and node struct.
624 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
625 iocbq->sli4_xritag = NO_XRI;
626 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
630 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
631 * @phba: Pointer to HBA context object.
632 * @iocbq: Pointer to driver iocb object.
634 * This function is called with hbalock held to release driver
635 * iocb object to the iocb pool. The iotag in the iocb object
636 * does not change for each use of the iocb object. This function
637 * clears all other fields of the iocb object when it is freed.
640 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
642 phba->__lpfc_sli_release_iocbq(phba, iocbq);
646 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
647 * @phba: Pointer to HBA context object.
648 * @iocbq: Pointer to driver iocb object.
650 * This function is called with no lock held to release the iocb to
654 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
656 unsigned long iflags;
659 * Clean all volatile data fields, preserve iotag and node struct.
661 spin_lock_irqsave(&phba->hbalock, iflags);
662 __lpfc_sli_release_iocbq(phba, iocbq);
663 spin_unlock_irqrestore(&phba->hbalock, iflags);
667 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
668 * @phba: Pointer to HBA context object.
669 * @iocblist: List of IOCBs.
670 * @ulpstatus: ULP status in IOCB command field.
671 * @ulpWord4: ULP word-4 in IOCB command field.
673 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
674 * on the list by invoking the complete callback function associated with the
675 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
679 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
680 uint32_t ulpstatus, uint32_t ulpWord4)
682 struct lpfc_iocbq *piocb;
684 while (!list_empty(iocblist)) {
685 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
687 if (!piocb->iocb_cmpl)
688 lpfc_sli_release_iocbq(phba, piocb);
690 piocb->iocb.ulpStatus = ulpstatus;
691 piocb->iocb.un.ulpWord[4] = ulpWord4;
692 (piocb->iocb_cmpl) (phba, piocb, piocb);
699 * lpfc_sli_iocb_cmd_type - Get the iocb type
700 * @iocb_cmnd: iocb command code.
702 * This function is called by ring event handler function to get the iocb type.
703 * This function translates the iocb command to an iocb command type used to
704 * decide the final disposition of each completed IOCB.
705 * The function returns
706 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
707 * LPFC_SOL_IOCB if it is a solicited iocb completion
708 * LPFC_ABORT_IOCB if it is an abort iocb
709 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
711 * The caller is not required to hold any lock.
713 static lpfc_iocb_type
714 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
716 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
718 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
722 case CMD_XMIT_SEQUENCE_CR:
723 case CMD_XMIT_SEQUENCE_CX:
724 case CMD_XMIT_BCAST_CN:
725 case CMD_XMIT_BCAST_CX:
726 case CMD_ELS_REQUEST_CR:
727 case CMD_ELS_REQUEST_CX:
728 case CMD_CREATE_XRI_CR:
729 case CMD_CREATE_XRI_CX:
731 case CMD_XMIT_ELS_RSP_CX:
733 case CMD_FCP_IWRITE_CR:
734 case CMD_FCP_IWRITE_CX:
735 case CMD_FCP_IREAD_CR:
736 case CMD_FCP_IREAD_CX:
737 case CMD_FCP_ICMND_CR:
738 case CMD_FCP_ICMND_CX:
739 case CMD_FCP_TSEND_CX:
740 case CMD_FCP_TRSP_CX:
741 case CMD_FCP_TRECEIVE_CX:
742 case CMD_FCP_AUTO_TRSP_CX:
743 case CMD_ADAPTER_MSG:
744 case CMD_ADAPTER_DUMP:
745 case CMD_XMIT_SEQUENCE64_CR:
746 case CMD_XMIT_SEQUENCE64_CX:
747 case CMD_XMIT_BCAST64_CN:
748 case CMD_XMIT_BCAST64_CX:
749 case CMD_ELS_REQUEST64_CR:
750 case CMD_ELS_REQUEST64_CX:
751 case CMD_FCP_IWRITE64_CR:
752 case CMD_FCP_IWRITE64_CX:
753 case CMD_FCP_IREAD64_CR:
754 case CMD_FCP_IREAD64_CX:
755 case CMD_FCP_ICMND64_CR:
756 case CMD_FCP_ICMND64_CX:
757 case CMD_FCP_TSEND64_CX:
758 case CMD_FCP_TRSP64_CX:
759 case CMD_FCP_TRECEIVE64_CX:
760 case CMD_GEN_REQUEST64_CR:
761 case CMD_GEN_REQUEST64_CX:
762 case CMD_XMIT_ELS_RSP64_CX:
763 case DSSCMD_IWRITE64_CR:
764 case DSSCMD_IWRITE64_CX:
765 case DSSCMD_IREAD64_CR:
766 case DSSCMD_IREAD64_CX:
767 case DSSCMD_INVALIDATE_DEK:
769 case DSSCMD_GET_KEK_ID:
770 case DSSCMD_GEN_XFER:
771 type = LPFC_SOL_IOCB;
773 case CMD_ABORT_XRI_CN:
774 case CMD_ABORT_XRI_CX:
775 case CMD_CLOSE_XRI_CN:
776 case CMD_CLOSE_XRI_CX:
777 case CMD_XRI_ABORTED_CX:
778 case CMD_ABORT_MXRI64_CN:
779 case CMD_XMIT_BLS_RSP64_CX:
780 type = LPFC_ABORT_IOCB;
782 case CMD_RCV_SEQUENCE_CX:
783 case CMD_RCV_ELS_REQ_CX:
784 case CMD_RCV_SEQUENCE64_CX:
785 case CMD_RCV_ELS_REQ64_CX:
786 case CMD_ASYNC_STATUS:
787 case CMD_IOCB_RCV_SEQ64_CX:
788 case CMD_IOCB_RCV_ELS64_CX:
789 case CMD_IOCB_RCV_CONT64_CX:
790 case CMD_IOCB_RET_XRI64_CX:
791 type = LPFC_UNSOL_IOCB;
793 case CMD_IOCB_XMIT_MSEQ64_CR:
794 case CMD_IOCB_XMIT_MSEQ64_CX:
795 case CMD_IOCB_RCV_SEQ_LIST64_CX:
796 case CMD_IOCB_RCV_ELS_LIST64_CX:
797 case CMD_IOCB_CLOSE_EXTENDED_CN:
798 case CMD_IOCB_ABORT_EXTENDED_CN:
799 case CMD_IOCB_RET_HBQE64_CN:
800 case CMD_IOCB_FCP_IBIDIR64_CR:
801 case CMD_IOCB_FCP_IBIDIR64_CX:
802 case CMD_IOCB_FCP_ITASKMGT64_CX:
803 case CMD_IOCB_LOGENTRY_CN:
804 case CMD_IOCB_LOGENTRY_ASYNC_CN:
805 printk("%s - Unhandled SLI-3 Command x%x\n",
806 __func__, iocb_cmnd);
807 type = LPFC_UNKNOWN_IOCB;
810 type = LPFC_UNKNOWN_IOCB;
818 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
819 * @phba: Pointer to HBA context object.
821 * This function is called from SLI initialization code
822 * to configure every ring of the HBA's SLI interface. The
823 * caller is not required to hold any lock. This function issues
824 * a config_ring mailbox command for each ring.
825 * This function returns zero if successful else returns a negative
829 lpfc_sli_ring_map(struct lpfc_hba *phba)
831 struct lpfc_sli *psli = &phba->sli;
836 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
840 phba->link_state = LPFC_INIT_MBX_CMDS;
841 for (i = 0; i < psli->num_rings; i++) {
842 lpfc_config_ring(phba, i, pmb);
843 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
844 if (rc != MBX_SUCCESS) {
845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
846 "0446 Adapter failed to init (%d), "
847 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
849 rc, pmbox->mbxCommand,
850 pmbox->mbxStatus, i);
851 phba->link_state = LPFC_HBA_ERROR;
856 mempool_free(pmb, phba->mbox_mem_pool);
861 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
862 * @phba: Pointer to HBA context object.
863 * @pring: Pointer to driver SLI ring object.
864 * @piocb: Pointer to the driver iocb object.
866 * This function is called with hbalock held. The function adds the
867 * new iocb to txcmplq of the given ring. This function always returns
868 * 0. If this function is called for ELS ring, this function checks if
869 * there is a vport associated with the ELS command. This function also
870 * starts els_tmofunc timer if this is an ELS command.
873 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
874 struct lpfc_iocbq *piocb)
876 list_add_tail(&piocb->list, &pring->txcmplq);
877 pring->txcmplq_cnt++;
878 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
879 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
880 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
884 mod_timer(&piocb->vport->els_tmofunc,
885 jiffies + HZ * (phba->fc_ratov << 1));
893 * lpfc_sli_ringtx_get - Get first element of the txq
894 * @phba: Pointer to HBA context object.
895 * @pring: Pointer to driver SLI ring object.
897 * This function is called with hbalock held to get next
898 * iocb in txq of the given ring. If there is any iocb in
899 * the txq, the function returns first iocb in the list after
900 * removing the iocb from the list, else it returns NULL.
902 static struct lpfc_iocbq *
903 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
905 struct lpfc_iocbq *cmd_iocb;
907 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
908 if (cmd_iocb != NULL)
914 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
915 * @phba: Pointer to HBA context object.
916 * @pring: Pointer to driver SLI ring object.
918 * This function is called with hbalock held and the caller must post the
919 * iocb without releasing the lock. If the caller releases the lock,
920 * iocb slot returned by the function is not guaranteed to be available.
921 * The function returns pointer to the next available iocb slot if there
922 * is available slot in the ring, else it returns NULL.
923 * If the get index of the ring is ahead of the put index, the function
924 * will post an error attention event to the worker thread to take the
925 * HBA to offline state.
928 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
930 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
931 uint32_t max_cmd_idx = pring->numCiocb;
932 if ((pring->next_cmdidx == pring->cmdidx) &&
933 (++pring->next_cmdidx >= max_cmd_idx))
934 pring->next_cmdidx = 0;
936 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
938 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
940 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
941 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
942 "0315 Ring %d issue: portCmdGet %d "
943 "is bigger than cmd ring %d\n",
945 pring->local_getidx, max_cmd_idx);
947 phba->link_state = LPFC_HBA_ERROR;
949 * All error attention handlers are posted to
952 phba->work_ha |= HA_ERATT;
953 phba->work_hs = HS_FFER3;
955 lpfc_worker_wake_up(phba);
960 if (pring->local_getidx == pring->next_cmdidx)
964 return lpfc_cmd_iocb(phba, pring);
968 * lpfc_sli_next_iotag - Get an iotag for the iocb
969 * @phba: Pointer to HBA context object.
970 * @iocbq: Pointer to driver iocb object.
972 * This function gets an iotag for the iocb. If there is no unused iotag and
973 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
974 * array and assigns a new iotag.
975 * The function returns the allocated iotag if successful, else returns zero.
976 * Zero is not a valid iotag.
977 * The caller is not required to hold any lock.
980 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
982 struct lpfc_iocbq **new_arr;
983 struct lpfc_iocbq **old_arr;
985 struct lpfc_sli *psli = &phba->sli;
988 spin_lock_irq(&phba->hbalock);
989 iotag = psli->last_iotag;
990 if(++iotag < psli->iocbq_lookup_len) {
991 psli->last_iotag = iotag;
992 psli->iocbq_lookup[iotag] = iocbq;
993 spin_unlock_irq(&phba->hbalock);
994 iocbq->iotag = iotag;
996 } else if (psli->iocbq_lookup_len < (0xffff
997 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
998 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
999 spin_unlock_irq(&phba->hbalock);
1000 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1003 spin_lock_irq(&phba->hbalock);
1004 old_arr = psli->iocbq_lookup;
1005 if (new_len <= psli->iocbq_lookup_len) {
1006 /* highly unprobable case */
1008 iotag = psli->last_iotag;
1009 if(++iotag < psli->iocbq_lookup_len) {
1010 psli->last_iotag = iotag;
1011 psli->iocbq_lookup[iotag] = iocbq;
1012 spin_unlock_irq(&phba->hbalock);
1013 iocbq->iotag = iotag;
1016 spin_unlock_irq(&phba->hbalock);
1019 if (psli->iocbq_lookup)
1020 memcpy(new_arr, old_arr,
1021 ((psli->last_iotag + 1) *
1022 sizeof (struct lpfc_iocbq *)));
1023 psli->iocbq_lookup = new_arr;
1024 psli->iocbq_lookup_len = new_len;
1025 psli->last_iotag = iotag;
1026 psli->iocbq_lookup[iotag] = iocbq;
1027 spin_unlock_irq(&phba->hbalock);
1028 iocbq->iotag = iotag;
1033 spin_unlock_irq(&phba->hbalock);
1035 lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
1036 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1043 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1044 * @phba: Pointer to HBA context object.
1045 * @pring: Pointer to driver SLI ring object.
1046 * @iocb: Pointer to iocb slot in the ring.
1047 * @nextiocb: Pointer to driver iocb object which need to be
1048 * posted to firmware.
1050 * This function is called with hbalock held to post a new iocb to
1051 * the firmware. This function copies the new iocb to ring iocb slot and
1052 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1053 * a completion call back for this iocb else the function will free the
1057 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1058 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1063 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1066 if (pring->ringno == LPFC_ELS_RING) {
1067 lpfc_debugfs_slow_ring_trc(phba,
1068 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1069 *(((uint32_t *) &nextiocb->iocb) + 4),
1070 *(((uint32_t *) &nextiocb->iocb) + 6),
1071 *(((uint32_t *) &nextiocb->iocb) + 7));
1075 * Issue iocb command to adapter
1077 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1079 pring->stats.iocb_cmd++;
1082 * If there is no completion routine to call, we can release the
1083 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1084 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1086 if (nextiocb->iocb_cmpl)
1087 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1089 __lpfc_sli_release_iocbq(phba, nextiocb);
1092 * Let the HBA know what IOCB slot will be the next one the
1093 * driver will put a command into.
1095 pring->cmdidx = pring->next_cmdidx;
1096 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1100 * lpfc_sli_update_full_ring - Update the chip attention register
1101 * @phba: Pointer to HBA context object.
1102 * @pring: Pointer to driver SLI ring object.
1104 * The caller is not required to hold any lock for calling this function.
1105 * This function updates the chip attention bits for the ring to inform firmware
1106 * that there are pending work to be done for this ring and requests an
1107 * interrupt when there is space available in the ring. This function is
1108 * called when the driver is unable to post more iocbs to the ring due
1109 * to unavailability of space in the ring.
1112 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1114 int ringno = pring->ringno;
1116 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1121 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1122 * The HBA will tell us when an IOCB entry is available.
1124 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1125 readl(phba->CAregaddr); /* flush */
1127 pring->stats.iocb_cmd_full++;
1131 * lpfc_sli_update_ring - Update chip attention register
1132 * @phba: Pointer to HBA context object.
1133 * @pring: Pointer to driver SLI ring object.
1135 * This function updates the chip attention register bit for the
1136 * given ring to inform HBA that there is more work to be done
1137 * in this ring. The caller is not required to hold any lock.
1140 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1142 int ringno = pring->ringno;
1145 * Tell the HBA that there is work to do in this ring.
1147 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1149 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1150 readl(phba->CAregaddr); /* flush */
1155 * lpfc_sli_resume_iocb - Process iocbs in the txq
1156 * @phba: Pointer to HBA context object.
1157 * @pring: Pointer to driver SLI ring object.
1159 * This function is called with hbalock held to post pending iocbs
1160 * in the txq to the firmware. This function is called when driver
1161 * detects space available in the ring.
1164 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1167 struct lpfc_iocbq *nextiocb;
1171 * (a) there is anything on the txq to send
1173 * (c) link attention events can be processed (fcp ring only)
1174 * (d) IOCB processing is not blocked by the outstanding mbox command.
1176 if (pring->txq_cnt &&
1177 lpfc_is_link_up(phba) &&
1178 (pring->ringno != phba->sli.fcp_ring ||
1179 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1181 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1182 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1183 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1186 lpfc_sli_update_ring(phba, pring);
1188 lpfc_sli_update_full_ring(phba, pring);
1195 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1196 * @phba: Pointer to HBA context object.
1197 * @hbqno: HBQ number.
1199 * This function is called with hbalock held to get the next
1200 * available slot for the given HBQ. If there is free slot
1201 * available for the HBQ it will return pointer to the next available
1202 * HBQ entry else it will return NULL.
1204 static struct lpfc_hbq_entry *
1205 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1207 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1209 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1210 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1211 hbqp->next_hbqPutIdx = 0;
1213 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1214 uint32_t raw_index = phba->hbq_get[hbqno];
1215 uint32_t getidx = le32_to_cpu(raw_index);
1217 hbqp->local_hbqGetIdx = getidx;
1219 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1220 lpfc_printf_log(phba, KERN_ERR,
1221 LOG_SLI | LOG_VPORT,
1222 "1802 HBQ %d: local_hbqGetIdx "
1223 "%u is > than hbqp->entry_count %u\n",
1224 hbqno, hbqp->local_hbqGetIdx,
1227 phba->link_state = LPFC_HBA_ERROR;
1231 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1235 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1240 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1241 * @phba: Pointer to HBA context object.
1243 * This function is called with no lock held to free all the
1244 * hbq buffers while uninitializing the SLI interface. It also
1245 * frees the HBQ buffers returned by the firmware but not yet
1246 * processed by the upper layers.
1249 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1251 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1252 struct hbq_dmabuf *hbq_buf;
1253 unsigned long flags;
1257 hbq_count = lpfc_sli_hbq_count();
1258 /* Return all memory used by all HBQs */
1259 spin_lock_irqsave(&phba->hbalock, flags);
1260 for (i = 0; i < hbq_count; ++i) {
1261 list_for_each_entry_safe(dmabuf, next_dmabuf,
1262 &phba->hbqs[i].hbq_buffer_list, list) {
1263 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1264 list_del(&hbq_buf->dbuf.list);
1265 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1267 phba->hbqs[i].buffer_count = 0;
1269 /* Return all HBQ buffer that are in-fly */
1270 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1272 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1273 list_del(&hbq_buf->dbuf.list);
1274 if (hbq_buf->tag == -1) {
1275 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1278 hbqno = hbq_buf->tag >> 16;
1279 if (hbqno >= LPFC_MAX_HBQS)
1280 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1283 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1288 /* Mark the HBQs not in use */
1289 phba->hbq_in_use = 0;
1290 spin_unlock_irqrestore(&phba->hbalock, flags);
1294 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1295 * @phba: Pointer to HBA context object.
1296 * @hbqno: HBQ number.
1297 * @hbq_buf: Pointer to HBQ buffer.
1299 * This function is called with the hbalock held to post a
1300 * hbq buffer to the firmware. If the function finds an empty
1301 * slot in the HBQ, it will post the buffer. The function will return
1302 * pointer to the hbq entry if it successfully post the buffer
1303 * else it will return NULL.
1306 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1307 struct hbq_dmabuf *hbq_buf)
1309 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1313 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1314 * @phba: Pointer to HBA context object.
1315 * @hbqno: HBQ number.
1316 * @hbq_buf: Pointer to HBQ buffer.
1318 * This function is called with the hbalock held to post a hbq buffer to the
1319 * firmware. If the function finds an empty slot in the HBQ, it will post the
1320 * buffer and place it on the hbq_buffer_list. The function will return zero if
1321 * it successfully post the buffer else it will return an error.
1324 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1325 struct hbq_dmabuf *hbq_buf)
1327 struct lpfc_hbq_entry *hbqe;
1328 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1330 /* Get next HBQ entry slot to use */
1331 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1333 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1335 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1336 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1337 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1338 hbqe->bde.tus.f.bdeFlags = 0;
1339 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1340 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1342 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1343 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1345 readl(phba->hbq_put + hbqno);
1346 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1353 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1354 * @phba: Pointer to HBA context object.
1355 * @hbqno: HBQ number.
1356 * @hbq_buf: Pointer to HBQ buffer.
1358 * This function is called with the hbalock held to post an RQE to the SLI4
1359 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1360 * the hbq_buffer_list and return zero, otherwise it will return an error.
1363 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1364 struct hbq_dmabuf *hbq_buf)
1367 struct lpfc_rqe hrqe;
1368 struct lpfc_rqe drqe;
1370 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1371 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1372 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1373 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1374 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1379 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1383 /* HBQ for ELS and CT traffic. */
1384 static struct lpfc_hbq_init lpfc_els_hbq = {
1389 .ring_mask = (1 << LPFC_ELS_RING),
1395 /* HBQ for the extra ring if needed */
1396 static struct lpfc_hbq_init lpfc_extra_hbq = {
1401 .ring_mask = (1 << LPFC_EXTRA_RING),
1408 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1414 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1415 * @phba: Pointer to HBA context object.
1416 * @hbqno: HBQ number.
1417 * @count: Number of HBQ buffers to be posted.
1419 * This function is called with no lock held to post more hbq buffers to the
1420 * given HBQ. The function returns the number of HBQ buffers successfully
1424 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1426 uint32_t i, posted = 0;
1427 unsigned long flags;
1428 struct hbq_dmabuf *hbq_buffer;
1429 LIST_HEAD(hbq_buf_list);
1430 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1433 if ((phba->hbqs[hbqno].buffer_count + count) >
1434 lpfc_hbq_defs[hbqno]->entry_count)
1435 count = lpfc_hbq_defs[hbqno]->entry_count -
1436 phba->hbqs[hbqno].buffer_count;
1439 /* Allocate HBQ entries */
1440 for (i = 0; i < count; i++) {
1441 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1444 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1446 /* Check whether HBQ is still in use */
1447 spin_lock_irqsave(&phba->hbalock, flags);
1448 if (!phba->hbq_in_use)
1450 while (!list_empty(&hbq_buf_list)) {
1451 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1453 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1455 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1456 phba->hbqs[hbqno].buffer_count++;
1459 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1461 spin_unlock_irqrestore(&phba->hbalock, flags);
1464 spin_unlock_irqrestore(&phba->hbalock, flags);
1465 while (!list_empty(&hbq_buf_list)) {
1466 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1468 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1474 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1475 * @phba: Pointer to HBA context object.
1478 * This function posts more buffers to the HBQ. This function
1479 * is called with no lock held. The function returns the number of HBQ entries
1480 * successfully allocated.
1483 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1485 return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1486 lpfc_hbq_defs[qno]->add_count));
1490 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1491 * @phba: Pointer to HBA context object.
1492 * @qno: HBQ queue number.
1494 * This function is called from SLI initialization code path with
1495 * no lock held to post initial HBQ buffers to firmware. The
1496 * function returns the number of HBQ entries successfully allocated.
1499 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
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;
1714 mp = (struct lpfc_dmabuf *) (pmb->context1);
1717 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1721 if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
1722 (phba->sli_rev == LPFC_SLI_REV4))
1723 lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
1726 * If a REG_LOGIN succeeded after node is destroyed or node
1727 * is in re-discovery driver need to cleanup the RPI.
1729 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1730 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
1731 !pmb->u.mb.mbxStatus) {
1732 rpi = pmb->u.mb.un.varWords[0];
1733 vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
1734 lpfc_unreg_login(phba, vpi, rpi, pmb);
1735 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1736 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1737 if (rc != MBX_NOT_FINISHED)
1741 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
1742 lpfc_sli4_mbox_cmd_free(phba, pmb);
1744 mempool_free(pmb, phba->mbox_mem_pool);
1748 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
1749 * @phba: Pointer to HBA context object.
1751 * This function is called with no lock held. This function processes all
1752 * the completed mailbox commands and gives it to upper layers. The interrupt
1753 * service routine processes mailbox completion interrupt and adds completed
1754 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1755 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1756 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1757 * function returns the mailbox commands to the upper layer by calling the
1758 * completion handler function of each mailbox.
1761 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
1768 phba->sli.slistat.mbox_event++;
1770 /* Get all completed mailboxe buffers into the cmplq */
1771 spin_lock_irq(&phba->hbalock);
1772 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
1773 spin_unlock_irq(&phba->hbalock);
1775 /* Get a Mailbox buffer to setup mailbox commands for callback */
1777 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
1783 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
1785 lpfc_debugfs_disc_trc(pmb->vport,
1786 LPFC_DISC_TRC_MBOX_VPORT,
1787 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1788 (uint32_t)pmbox->mbxCommand,
1789 pmbox->un.varWords[0],
1790 pmbox->un.varWords[1]);
1793 lpfc_debugfs_disc_trc(phba->pport,
1795 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1796 (uint32_t)pmbox->mbxCommand,
1797 pmbox->un.varWords[0],
1798 pmbox->un.varWords[1]);
1803 * It is a fatal error if unknown mbox command completion.
1805 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
1807 /* Unknown mailbox command compl */
1808 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
1809 "(%d):0323 Unknown Mailbox command "
1811 pmb->vport ? pmb->vport->vpi : 0,
1813 lpfc_sli4_mbox_opcode_get(phba, pmb));
1814 phba->link_state = LPFC_HBA_ERROR;
1815 phba->work_hs = HS_FFER3;
1816 lpfc_handle_eratt(phba);
1820 if (pmbox->mbxStatus) {
1821 phba->sli.slistat.mbox_stat_err++;
1822 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
1823 /* Mbox cmd cmpl error - RETRYing */
1824 lpfc_printf_log(phba, KERN_INFO,
1826 "(%d):0305 Mbox cmd cmpl "
1827 "error - RETRYing Data: x%x "
1828 "(x%x) x%x x%x x%x\n",
1829 pmb->vport ? pmb->vport->vpi :0,
1831 lpfc_sli4_mbox_opcode_get(phba,
1834 pmbox->un.varWords[0],
1835 pmb->vport->port_state);
1836 pmbox->mbxStatus = 0;
1837 pmbox->mbxOwner = OWN_HOST;
1838 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1839 if (rc != MBX_NOT_FINISHED)
1844 /* Mailbox cmd <cmd> Cmpl <cmpl> */
1845 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
1846 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
1847 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
1848 pmb->vport ? pmb->vport->vpi : 0,
1850 lpfc_sli4_mbox_opcode_get(phba, pmb),
1852 *((uint32_t *) pmbox),
1853 pmbox->un.varWords[0],
1854 pmbox->un.varWords[1],
1855 pmbox->un.varWords[2],
1856 pmbox->un.varWords[3],
1857 pmbox->un.varWords[4],
1858 pmbox->un.varWords[5],
1859 pmbox->un.varWords[6],
1860 pmbox->un.varWords[7]);
1863 pmb->mbox_cmpl(phba,pmb);
1869 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
1870 * @phba: Pointer to HBA context object.
1871 * @pring: Pointer to driver SLI ring object.
1874 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1875 * is set in the tag the buffer is posted for a particular exchange,
1876 * the function will return the buffer without replacing the buffer.
1877 * If the buffer is for unsolicited ELS or CT traffic, this function
1878 * returns the buffer and also posts another buffer to the firmware.
1880 static struct lpfc_dmabuf *
1881 lpfc_sli_get_buff(struct lpfc_hba *phba,
1882 struct lpfc_sli_ring *pring,
1885 struct hbq_dmabuf *hbq_entry;
1887 if (tag & QUE_BUFTAG_BIT)
1888 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
1889 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
1892 return &hbq_entry->dbuf;
1896 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1897 * @phba: Pointer to HBA context object.
1898 * @pring: Pointer to driver SLI ring object.
1899 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1900 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1901 * @fch_type: the type for the first frame of the sequence.
1903 * This function is called with no lock held. This function uses the r_ctl and
1904 * type of the received sequence to find the correct callback function to call
1905 * to process the sequence.
1908 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1909 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
1914 /* unSolicited Responses */
1915 if (pring->prt[0].profile) {
1916 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
1917 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
1921 /* We must search, based on rctl / type
1922 for the right routine */
1923 for (i = 0; i < pring->num_mask; i++) {
1924 if ((pring->prt[i].rctl == fch_r_ctl) &&
1925 (pring->prt[i].type == fch_type)) {
1926 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
1927 (pring->prt[i].lpfc_sli_rcv_unsol_event)
1928 (phba, pring, saveq);
1936 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
1937 * @phba: Pointer to HBA context object.
1938 * @pring: Pointer to driver SLI ring object.
1939 * @saveq: Pointer to the unsolicited iocb.
1941 * This function is called with no lock held by the ring event handler
1942 * when there is an unsolicited iocb posted to the response ring by the
1943 * firmware. This function gets the buffer associated with the iocbs
1944 * and calls the event handler for the ring. This function handles both
1945 * qring buffers and hbq buffers.
1946 * When the function returns 1 the caller can free the iocb object otherwise
1947 * upper layer functions will free the iocb objects.
1950 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1951 struct lpfc_iocbq *saveq)
1955 uint32_t Rctl, Type;
1957 struct lpfc_iocbq *iocbq;
1958 struct lpfc_dmabuf *dmzbuf;
1961 irsp = &(saveq->iocb);
1963 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
1964 if (pring->lpfc_sli_rcv_async_status)
1965 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
1967 lpfc_printf_log(phba,
1970 "0316 Ring %d handler: unexpected "
1971 "ASYNC_STATUS iocb received evt_code "
1974 irsp->un.asyncstat.evt_code);
1978 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
1979 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
1980 if (irsp->ulpBdeCount > 0) {
1981 dmzbuf = lpfc_sli_get_buff(phba, pring,
1982 irsp->un.ulpWord[3]);
1983 lpfc_in_buf_free(phba, dmzbuf);
1986 if (irsp->ulpBdeCount > 1) {
1987 dmzbuf = lpfc_sli_get_buff(phba, pring,
1988 irsp->unsli3.sli3Words[3]);
1989 lpfc_in_buf_free(phba, dmzbuf);
1992 if (irsp->ulpBdeCount > 2) {
1993 dmzbuf = lpfc_sli_get_buff(phba, pring,
1994 irsp->unsli3.sli3Words[7]);
1995 lpfc_in_buf_free(phba, dmzbuf);
2001 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2002 if (irsp->ulpBdeCount != 0) {
2003 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2004 irsp->un.ulpWord[3]);
2005 if (!saveq->context2)
2006 lpfc_printf_log(phba,
2009 "0341 Ring %d Cannot find buffer for "
2010 "an unsolicited iocb. tag 0x%x\n",
2012 irsp->un.ulpWord[3]);
2014 if (irsp->ulpBdeCount == 2) {
2015 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2016 irsp->unsli3.sli3Words[7]);
2017 if (!saveq->context3)
2018 lpfc_printf_log(phba,
2021 "0342 Ring %d Cannot find buffer for an"
2022 " unsolicited iocb. tag 0x%x\n",
2024 irsp->unsli3.sli3Words[7]);
2026 list_for_each_entry(iocbq, &saveq->list, list) {
2027 irsp = &(iocbq->iocb);
2028 if (irsp->ulpBdeCount != 0) {
2029 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2030 irsp->un.ulpWord[3]);
2031 if (!iocbq->context2)
2032 lpfc_printf_log(phba,
2035 "0343 Ring %d Cannot find "
2036 "buffer for an unsolicited iocb"
2037 ". tag 0x%x\n", pring->ringno,
2038 irsp->un.ulpWord[3]);
2040 if (irsp->ulpBdeCount == 2) {
2041 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2042 irsp->unsli3.sli3Words[7]);
2043 if (!iocbq->context3)
2044 lpfc_printf_log(phba,
2047 "0344 Ring %d Cannot find "
2048 "buffer for an unsolicited "
2051 irsp->unsli3.sli3Words[7]);
2055 if (irsp->ulpBdeCount != 0 &&
2056 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2057 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2060 /* search continue save q for same XRI */
2061 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2062 if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
2063 list_add_tail(&saveq->list, &iocbq->list);
2069 list_add_tail(&saveq->clist,
2070 &pring->iocb_continue_saveq);
2071 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2072 list_del_init(&iocbq->clist);
2074 irsp = &(saveq->iocb);
2078 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2079 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2080 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2081 Rctl = FC_RCTL_ELS_REQ;
2084 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2085 Rctl = w5p->hcsw.Rctl;
2086 Type = w5p->hcsw.Type;
2088 /* Firmware Workaround */
2089 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2090 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2091 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2092 Rctl = FC_RCTL_ELS_REQ;
2094 w5p->hcsw.Rctl = Rctl;
2095 w5p->hcsw.Type = Type;
2099 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2100 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2101 "0313 Ring %d handler: unexpected Rctl x%x "
2102 "Type x%x received\n",
2103 pring->ringno, Rctl, Type);
2109 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2110 * @phba: Pointer to HBA context object.
2111 * @pring: Pointer to driver SLI ring object.
2112 * @prspiocb: Pointer to response iocb object.
2114 * This function looks up the iocb_lookup table to get the command iocb
2115 * corresponding to the given response iocb using the iotag of the
2116 * response iocb. This function is called with the hbalock held.
2117 * This function returns the command iocb object if it finds the command
2118 * iocb else returns NULL.
2120 static struct lpfc_iocbq *
2121 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2122 struct lpfc_sli_ring *pring,
2123 struct lpfc_iocbq *prspiocb)
2125 struct lpfc_iocbq *cmd_iocb = NULL;
2128 iotag = prspiocb->iocb.ulpIoTag;
2130 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2131 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2132 list_del_init(&cmd_iocb->list);
2133 pring->txcmplq_cnt--;
2137 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2138 "0317 iotag x%x is out off "
2139 "range: max iotag x%x wd0 x%x\n",
2140 iotag, phba->sli.last_iotag,
2141 *(((uint32_t *) &prspiocb->iocb) + 7));
2146 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2147 * @phba: Pointer to HBA context object.
2148 * @pring: Pointer to driver SLI ring object.
2151 * This function looks up the iocb_lookup table to get the command iocb
2152 * corresponding to the given iotag. This function is called with the
2154 * This function returns the command iocb object if it finds the command
2155 * iocb else returns NULL.
2157 static struct lpfc_iocbq *
2158 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2159 struct lpfc_sli_ring *pring, uint16_t iotag)
2161 struct lpfc_iocbq *cmd_iocb;
2163 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2164 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2165 list_del_init(&cmd_iocb->list);
2166 pring->txcmplq_cnt--;
2170 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2171 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2172 iotag, phba->sli.last_iotag);
2177 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2178 * @phba: Pointer to HBA context object.
2179 * @pring: Pointer to driver SLI ring object.
2180 * @saveq: Pointer to the response iocb to be processed.
2182 * This function is called by the ring event handler for non-fcp
2183 * rings when there is a new response iocb in the response ring.
2184 * The caller is not required to hold any locks. This function
2185 * gets the command iocb associated with the response iocb and
2186 * calls the completion handler for the command iocb. If there
2187 * is no completion handler, the function will free the resources
2188 * associated with command iocb. If the response iocb is for
2189 * an already aborted command iocb, the status of the completion
2190 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2191 * This function always returns 1.
2194 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2195 struct lpfc_iocbq *saveq)
2197 struct lpfc_iocbq *cmdiocbp;
2199 unsigned long iflag;
2201 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2202 spin_lock_irqsave(&phba->hbalock, iflag);
2203 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2204 spin_unlock_irqrestore(&phba->hbalock, iflag);
2207 if (cmdiocbp->iocb_cmpl) {
2209 * If an ELS command failed send an event to mgmt
2212 if (saveq->iocb.ulpStatus &&
2213 (pring->ringno == LPFC_ELS_RING) &&
2214 (cmdiocbp->iocb.ulpCommand ==
2215 CMD_ELS_REQUEST64_CR))
2216 lpfc_send_els_failure_event(phba,
2220 * Post all ELS completions to the worker thread.
2221 * All other are passed to the completion callback.
2223 if (pring->ringno == LPFC_ELS_RING) {
2224 if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) {
2225 cmdiocbp->iocb_flag &=
2226 ~LPFC_DRIVER_ABORTED;
2227 saveq->iocb.ulpStatus =
2228 IOSTAT_LOCAL_REJECT;
2229 saveq->iocb.un.ulpWord[4] =
2232 /* Firmware could still be in progress
2233 * of DMAing payload, so don't free data
2234 * buffer till after a hbeat.
2236 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2239 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2241 lpfc_sli_release_iocbq(phba, cmdiocbp);
2244 * Unknown initiating command based on the response iotag.
2245 * This could be the case on the ELS ring because of
2248 if (pring->ringno != LPFC_ELS_RING) {
2250 * Ring <ringno> handler: unexpected completion IoTag
2253 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2254 "0322 Ring %d handler: "
2255 "unexpected completion IoTag x%x "
2256 "Data: x%x x%x x%x x%x\n",
2258 saveq->iocb.ulpIoTag,
2259 saveq->iocb.ulpStatus,
2260 saveq->iocb.un.ulpWord[4],
2261 saveq->iocb.ulpCommand,
2262 saveq->iocb.ulpContext);
2270 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2271 * @phba: Pointer to HBA context object.
2272 * @pring: Pointer to driver SLI ring object.
2274 * This function is called from the iocb ring event handlers when
2275 * put pointer is ahead of the get pointer for a ring. This function signal
2276 * an error attention condition to the worker thread and the worker
2277 * thread will transition the HBA to offline state.
2280 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2282 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2284 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2285 * rsp ring <portRspMax>
2287 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2288 "0312 Ring %d handler: portRspPut %d "
2289 "is bigger than rsp ring %d\n",
2290 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2293 phba->link_state = LPFC_HBA_ERROR;
2296 * All error attention handlers are posted to
2299 phba->work_ha |= HA_ERATT;
2300 phba->work_hs = HS_FFER3;
2302 lpfc_worker_wake_up(phba);
2308 * lpfc_poll_eratt - Error attention polling timer timeout handler
2309 * @ptr: Pointer to address of HBA context object.
2311 * This function is invoked by the Error Attention polling timer when the
2312 * timer times out. It will check the SLI Error Attention register for
2313 * possible attention events. If so, it will post an Error Attention event
2314 * and wake up worker thread to process it. Otherwise, it will set up the
2315 * Error Attention polling timer for the next poll.
2317 void lpfc_poll_eratt(unsigned long ptr)
2319 struct lpfc_hba *phba;
2322 phba = (struct lpfc_hba *)ptr;
2324 /* Check chip HA register for error event */
2325 eratt = lpfc_sli_check_eratt(phba);
2328 /* Tell the worker thread there is work to do */
2329 lpfc_worker_wake_up(phba);
2331 /* Restart the timer for next eratt poll */
2332 mod_timer(&phba->eratt_poll, jiffies +
2333 HZ * LPFC_ERATT_POLL_INTERVAL);
2339 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2340 * @phba: Pointer to HBA context object.
2341 * @pring: Pointer to driver SLI ring object.
2342 * @mask: Host attention register mask for this ring.
2344 * This function is called from the interrupt context when there is a ring
2345 * event for the fcp ring. The caller does not hold any lock.
2346 * The function processes each response iocb in the response ring until it
2347 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2348 * LE bit set. The function will call the completion handler of the command iocb
2349 * if the response iocb indicates a completion for a command iocb or it is
2350 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2351 * function if this is an unsolicited iocb.
2352 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2353 * to check it explicitly.
2356 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2357 struct lpfc_sli_ring *pring, uint32_t mask)
2359 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2360 IOCB_t *irsp = NULL;
2361 IOCB_t *entry = NULL;
2362 struct lpfc_iocbq *cmdiocbq = NULL;
2363 struct lpfc_iocbq rspiocbq;
2365 uint32_t portRspPut, portRspMax;
2367 lpfc_iocb_type type;
2368 unsigned long iflag;
2369 uint32_t rsp_cmpl = 0;
2371 spin_lock_irqsave(&phba->hbalock, iflag);
2372 pring->stats.iocb_event++;
2375 * The next available response entry should never exceed the maximum
2376 * entries. If it does, treat it as an adapter hardware error.
2378 portRspMax = pring->numRiocb;
2379 portRspPut = le32_to_cpu(pgp->rspPutInx);
2380 if (unlikely(portRspPut >= portRspMax)) {
2381 lpfc_sli_rsp_pointers_error(phba, pring);
2382 spin_unlock_irqrestore(&phba->hbalock, iflag);
2385 if (phba->fcp_ring_in_use) {
2386 spin_unlock_irqrestore(&phba->hbalock, iflag);
2389 phba->fcp_ring_in_use = 1;
2392 while (pring->rspidx != portRspPut) {
2394 * Fetch an entry off the ring and copy it into a local data
2395 * structure. The copy involves a byte-swap since the
2396 * network byte order and pci byte orders are different.
2398 entry = lpfc_resp_iocb(phba, pring);
2399 phba->last_completion_time = jiffies;
2401 if (++pring->rspidx >= portRspMax)
2404 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2405 (uint32_t *) &rspiocbq.iocb,
2406 phba->iocb_rsp_size);
2407 INIT_LIST_HEAD(&(rspiocbq.list));
2408 irsp = &rspiocbq.iocb;
2410 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2411 pring->stats.iocb_rsp++;
2414 if (unlikely(irsp->ulpStatus)) {
2416 * If resource errors reported from HBA, reduce
2417 * queuedepths of the SCSI device.
2419 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2420 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2421 spin_unlock_irqrestore(&phba->hbalock, iflag);
2422 phba->lpfc_rampdown_queue_depth(phba);
2423 spin_lock_irqsave(&phba->hbalock, iflag);
2426 /* Rsp ring <ringno> error: IOCB */
2427 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2428 "0336 Rsp Ring %d error: IOCB Data: "
2429 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2431 irsp->un.ulpWord[0],
2432 irsp->un.ulpWord[1],
2433 irsp->un.ulpWord[2],
2434 irsp->un.ulpWord[3],
2435 irsp->un.ulpWord[4],
2436 irsp->un.ulpWord[5],
2437 *(uint32_t *)&irsp->un1,
2438 *((uint32_t *)&irsp->un1 + 1));
2442 case LPFC_ABORT_IOCB:
2445 * Idle exchange closed via ABTS from port. No iocb
2446 * resources need to be recovered.
2448 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
2449 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2450 "0333 IOCB cmd 0x%x"
2451 " processed. Skipping"
2457 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2459 if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
2460 spin_unlock_irqrestore(&phba->hbalock,
2462 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2464 spin_lock_irqsave(&phba->hbalock,
2468 case LPFC_UNSOL_IOCB:
2469 spin_unlock_irqrestore(&phba->hbalock, iflag);
2470 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
2471 spin_lock_irqsave(&phba->hbalock, iflag);
2474 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2475 char adaptermsg[LPFC_MAX_ADPTMSG];
2476 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2477 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2479 dev_warn(&((phba->pcidev)->dev),
2481 phba->brd_no, adaptermsg);
2483 /* Unknown IOCB command */
2484 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2485 "0334 Unknown IOCB command "
2486 "Data: x%x, x%x x%x x%x x%x\n",
2487 type, irsp->ulpCommand,
2496 * The response IOCB has been processed. Update the ring
2497 * pointer in SLIM. If the port response put pointer has not
2498 * been updated, sync the pgp->rspPutInx and fetch the new port
2499 * response put pointer.
2501 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
2503 if (pring->rspidx == portRspPut)
2504 portRspPut = le32_to_cpu(pgp->rspPutInx);
2507 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
2508 pring->stats.iocb_rsp_full++;
2509 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2510 writel(status, phba->CAregaddr);
2511 readl(phba->CAregaddr);
2513 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2514 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2515 pring->stats.iocb_cmd_empty++;
2517 /* Force update of the local copy of cmdGetInx */
2518 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2519 lpfc_sli_resume_iocb(phba, pring);
2521 if ((pring->lpfc_sli_cmd_available))
2522 (pring->lpfc_sli_cmd_available) (phba, pring);
2526 phba->fcp_ring_in_use = 0;
2527 spin_unlock_irqrestore(&phba->hbalock, iflag);
2532 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2533 * @phba: Pointer to HBA context object.
2534 * @pring: Pointer to driver SLI ring object.
2535 * @rspiocbp: Pointer to driver response IOCB object.
2537 * This function is called from the worker thread when there is a slow-path
2538 * response IOCB to process. This function chains all the response iocbs until
2539 * seeing the iocb with the LE bit set. The function will call
2540 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2541 * completion of a command iocb. The function will call the
2542 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2543 * The function frees the resources or calls the completion handler if this
2544 * iocb is an abort completion. The function returns NULL when the response
2545 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2546 * this function shall chain the iocb on to the iocb_continueq and return the
2547 * response iocb passed in.
2549 static struct lpfc_iocbq *
2550 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2551 struct lpfc_iocbq *rspiocbp)
2553 struct lpfc_iocbq *saveq;
2554 struct lpfc_iocbq *cmdiocbp;
2555 struct lpfc_iocbq *next_iocb;
2556 IOCB_t *irsp = NULL;
2557 uint32_t free_saveq;
2558 uint8_t iocb_cmd_type;
2559 lpfc_iocb_type type;
2560 unsigned long iflag;
2563 spin_lock_irqsave(&phba->hbalock, iflag);
2564 /* First add the response iocb to the countinueq list */
2565 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
2566 pring->iocb_continueq_cnt++;
2568 /* Now, determine whetehr the list is completed for processing */
2569 irsp = &rspiocbp->iocb;
2572 * By default, the driver expects to free all resources
2573 * associated with this iocb completion.
2576 saveq = list_get_first(&pring->iocb_continueq,
2577 struct lpfc_iocbq, list);
2578 irsp = &(saveq->iocb);
2579 list_del_init(&pring->iocb_continueq);
2580 pring->iocb_continueq_cnt = 0;
2582 pring->stats.iocb_rsp++;
2585 * If resource errors reported from HBA, reduce
2586 * queuedepths of the SCSI device.
2588 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2589 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2590 spin_unlock_irqrestore(&phba->hbalock, iflag);
2591 phba->lpfc_rampdown_queue_depth(phba);
2592 spin_lock_irqsave(&phba->hbalock, iflag);
2595 if (irsp->ulpStatus) {
2596 /* Rsp ring <ringno> error: IOCB */
2597 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2598 "0328 Rsp Ring %d error: "
2603 "x%x x%x x%x x%x\n",
2605 irsp->un.ulpWord[0],
2606 irsp->un.ulpWord[1],
2607 irsp->un.ulpWord[2],
2608 irsp->un.ulpWord[3],
2609 irsp->un.ulpWord[4],
2610 irsp->un.ulpWord[5],
2611 *(((uint32_t *) irsp) + 6),
2612 *(((uint32_t *) irsp) + 7),
2613 *(((uint32_t *) irsp) + 8),
2614 *(((uint32_t *) irsp) + 9),
2615 *(((uint32_t *) irsp) + 10),
2616 *(((uint32_t *) irsp) + 11),
2617 *(((uint32_t *) irsp) + 12),
2618 *(((uint32_t *) irsp) + 13),
2619 *(((uint32_t *) irsp) + 14),
2620 *(((uint32_t *) irsp) + 15));
2624 * Fetch the IOCB command type and call the correct completion
2625 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2626 * get freed back to the lpfc_iocb_list by the discovery
2629 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
2630 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
2633 spin_unlock_irqrestore(&phba->hbalock, iflag);
2634 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
2635 spin_lock_irqsave(&phba->hbalock, iflag);
2638 case LPFC_UNSOL_IOCB:
2639 spin_unlock_irqrestore(&phba->hbalock, iflag);
2640 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
2641 spin_lock_irqsave(&phba->hbalock, iflag);
2646 case LPFC_ABORT_IOCB:
2648 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
2649 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
2652 /* Call the specified completion routine */
2653 if (cmdiocbp->iocb_cmpl) {
2654 spin_unlock_irqrestore(&phba->hbalock,
2656 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
2658 spin_lock_irqsave(&phba->hbalock,
2661 __lpfc_sli_release_iocbq(phba,
2666 case LPFC_UNKNOWN_IOCB:
2667 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2668 char adaptermsg[LPFC_MAX_ADPTMSG];
2669 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2670 memcpy(&adaptermsg[0], (uint8_t *)irsp,
2672 dev_warn(&((phba->pcidev)->dev),
2674 phba->brd_no, adaptermsg);
2676 /* Unknown IOCB command */
2677 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2678 "0335 Unknown IOCB "
2679 "command Data: x%x "
2690 list_for_each_entry_safe(rspiocbp, next_iocb,
2691 &saveq->list, list) {
2692 list_del(&rspiocbp->list);
2693 __lpfc_sli_release_iocbq(phba, rspiocbp);
2695 __lpfc_sli_release_iocbq(phba, saveq);
2699 spin_unlock_irqrestore(&phba->hbalock, iflag);
2704 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
2705 * @phba: Pointer to HBA context object.
2706 * @pring: Pointer to driver SLI ring object.
2707 * @mask: Host attention register mask for this ring.
2709 * This routine wraps the actual slow_ring event process routine from the
2710 * API jump table function pointer from the lpfc_hba struct.
2713 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
2714 struct lpfc_sli_ring *pring, uint32_t mask)
2716 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
2720 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2721 * @phba: Pointer to HBA context object.
2722 * @pring: Pointer to driver SLI ring object.
2723 * @mask: Host attention register mask for this ring.
2725 * This function is called from the worker thread when there is a ring event
2726 * for non-fcp rings. The caller does not hold any lock. The function will
2727 * remove each response iocb in the response ring and calls the handle
2728 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2731 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
2732 struct lpfc_sli_ring *pring, uint32_t mask)
2734 struct lpfc_pgp *pgp;
2736 IOCB_t *irsp = NULL;
2737 struct lpfc_iocbq *rspiocbp = NULL;
2738 uint32_t portRspPut, portRspMax;
2739 unsigned long iflag;
2742 pgp = &phba->port_gp[pring->ringno];
2743 spin_lock_irqsave(&phba->hbalock, iflag);
2744 pring->stats.iocb_event++;
2747 * The next available response entry should never exceed the maximum
2748 * entries. If it does, treat it as an adapter hardware error.
2750 portRspMax = pring->numRiocb;
2751 portRspPut = le32_to_cpu(pgp->rspPutInx);
2752 if (portRspPut >= portRspMax) {
2754 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2755 * rsp ring <portRspMax>
2757 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2758 "0303 Ring %d handler: portRspPut %d "
2759 "is bigger than rsp ring %d\n",
2760 pring->ringno, portRspPut, portRspMax);
2762 phba->link_state = LPFC_HBA_ERROR;
2763 spin_unlock_irqrestore(&phba->hbalock, iflag);
2765 phba->work_hs = HS_FFER3;
2766 lpfc_handle_eratt(phba);
2772 while (pring->rspidx != portRspPut) {
2774 * Build a completion list and call the appropriate handler.
2775 * The process is to get the next available response iocb, get
2776 * a free iocb from the list, copy the response data into the
2777 * free iocb, insert to the continuation list, and update the
2778 * next response index to slim. This process makes response
2779 * iocb's in the ring available to DMA as fast as possible but
2780 * pays a penalty for a copy operation. Since the iocb is
2781 * only 32 bytes, this penalty is considered small relative to
2782 * the PCI reads for register values and a slim write. When
2783 * the ulpLe field is set, the entire Command has been
2786 entry = lpfc_resp_iocb(phba, pring);
2788 phba->last_completion_time = jiffies;
2789 rspiocbp = __lpfc_sli_get_iocbq(phba);
2790 if (rspiocbp == NULL) {
2791 printk(KERN_ERR "%s: out of buffers! Failing "
2792 "completion.\n", __func__);
2796 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
2797 phba->iocb_rsp_size);
2798 irsp = &rspiocbp->iocb;
2800 if (++pring->rspidx >= portRspMax)
2803 if (pring->ringno == LPFC_ELS_RING) {
2804 lpfc_debugfs_slow_ring_trc(phba,
2805 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2806 *(((uint32_t *) irsp) + 4),
2807 *(((uint32_t *) irsp) + 6),
2808 *(((uint32_t *) irsp) + 7));
2811 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
2813 spin_unlock_irqrestore(&phba->hbalock, iflag);
2814 /* Handle the response IOCB */
2815 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
2816 spin_lock_irqsave(&phba->hbalock, iflag);
2819 * If the port response put pointer has not been updated, sync
2820 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2821 * response put pointer.
2823 if (pring->rspidx == portRspPut) {
2824 portRspPut = le32_to_cpu(pgp->rspPutInx);
2826 } /* while (pring->rspidx != portRspPut) */
2828 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
2829 /* At least one response entry has been freed */
2830 pring->stats.iocb_rsp_full++;
2831 /* SET RxRE_RSP in Chip Att register */
2832 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2833 writel(status, phba->CAregaddr);
2834 readl(phba->CAregaddr); /* flush */
2836 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2837 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2838 pring->stats.iocb_cmd_empty++;
2840 /* Force update of the local copy of cmdGetInx */
2841 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2842 lpfc_sli_resume_iocb(phba, pring);
2844 if ((pring->lpfc_sli_cmd_available))
2845 (pring->lpfc_sli_cmd_available) (phba, pring);
2849 spin_unlock_irqrestore(&phba->hbalock, iflag);
2854 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2855 * @phba: Pointer to HBA context object.
2856 * @pring: Pointer to driver SLI ring object.
2857 * @mask: Host attention register mask for this ring.
2859 * This function is called from the worker thread when there is a pending
2860 * ELS response iocb on the driver internal slow-path response iocb worker
2861 * queue. The caller does not hold any lock. The function will remove each
2862 * response iocb from the response worker queue and calls the handle
2863 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2866 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
2867 struct lpfc_sli_ring *pring, uint32_t mask)
2869 struct lpfc_iocbq *irspiocbq;
2870 struct hbq_dmabuf *dmabuf;
2871 struct lpfc_cq_event *cq_event;
2872 unsigned long iflag;
2874 spin_lock_irqsave(&phba->hbalock, iflag);
2875 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
2876 spin_unlock_irqrestore(&phba->hbalock, iflag);
2877 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
2878 /* Get the response iocb from the head of work queue */
2879 spin_lock_irqsave(&phba->hbalock, iflag);
2880 list_remove_head(&phba->sli4_hba.sp_queue_event,
2881 cq_event, struct lpfc_cq_event, list);
2882 spin_unlock_irqrestore(&phba->hbalock, iflag);
2884 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
2885 case CQE_CODE_COMPL_WQE:
2886 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
2888 /* Translate ELS WCQE to response IOCBQ */
2889 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
2892 lpfc_sli_sp_handle_rspiocb(phba, pring,
2895 case CQE_CODE_RECEIVE:
2896 dmabuf = container_of(cq_event, struct hbq_dmabuf,
2898 lpfc_sli4_handle_received_buffer(phba, dmabuf);
2907 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
2908 * @phba: Pointer to HBA context object.
2909 * @pring: Pointer to driver SLI ring object.
2911 * This function aborts all iocbs in the given ring and frees all the iocb
2912 * objects in txq. This function issues an abort iocb for all the iocb commands
2913 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
2914 * the return of this function. The caller is not required to hold any locks.
2917 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2919 LIST_HEAD(completions);
2920 struct lpfc_iocbq *iocb, *next_iocb;
2922 if (pring->ringno == LPFC_ELS_RING) {
2923 lpfc_fabric_abort_hba(phba);
2926 /* Error everything on txq and txcmplq
2929 spin_lock_irq(&phba->hbalock);
2930 list_splice_init(&pring->txq, &completions);
2933 /* Next issue ABTS for everything on the txcmplq */
2934 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
2935 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2937 spin_unlock_irq(&phba->hbalock);
2939 /* Cancel all the IOCBs from the completions list */
2940 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
2945 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
2946 * @phba: Pointer to HBA context object.
2948 * This function flushes all iocbs in the fcp ring and frees all the iocb
2949 * objects in txq and txcmplq. This function will not issue abort iocbs
2950 * for all the iocb commands in txcmplq, they will just be returned with
2951 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
2952 * slot has been permanently disabled.
2955 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
2959 struct lpfc_sli *psli = &phba->sli;
2960 struct lpfc_sli_ring *pring;
2962 /* Currently, only one fcp ring */
2963 pring = &psli->ring[psli->fcp_ring];
2965 spin_lock_irq(&phba->hbalock);
2966 /* Retrieve everything on txq */
2967 list_splice_init(&pring->txq, &txq);
2970 /* Retrieve everything on the txcmplq */
2971 list_splice_init(&pring->txcmplq, &txcmplq);
2972 pring->txcmplq_cnt = 0;
2973 spin_unlock_irq(&phba->hbalock);
2976 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
2979 /* Flush the txcmpq */
2980 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
2985 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
2986 * @phba: Pointer to HBA context object.
2987 * @mask: Bit mask to be checked.
2989 * This function reads the host status register and compares
2990 * with the provided bit mask to check if HBA completed
2991 * the restart. This function will wait in a loop for the
2992 * HBA to complete restart. If the HBA does not restart within
2993 * 15 iterations, the function will reset the HBA again. The
2994 * function returns 1 when HBA fail to restart otherwise returns
2998 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3004 /* Read the HBA Host Status Register */
3005 status = readl(phba->HSregaddr);
3008 * Check status register every 100ms for 5 retries, then every
3009 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3010 * every 2.5 sec for 4.
3011 * Break our of the loop if errors occurred during init.
3013 while (((status & mask) != mask) &&
3014 !(status & HS_FFERM) &&
3026 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3027 lpfc_sli_brdrestart(phba);
3029 /* Read the HBA Host Status Register */
3030 status = readl(phba->HSregaddr);
3033 /* Check to see if any errors occurred during init */
3034 if ((status & HS_FFERM) || (i >= 20)) {
3035 phba->link_state = LPFC_HBA_ERROR;
3043 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3044 * @phba: Pointer to HBA context object.
3045 * @mask: Bit mask to be checked.
3047 * This function checks the host status register to check if HBA is
3048 * ready. This function will wait in a loop for the HBA to be ready
3049 * If the HBA is not ready , the function will will reset the HBA PCI
3050 * function again. The function returns 1 when HBA fail to be ready
3051 * otherwise returns zero.
3054 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3059 /* Read the HBA Host Status Register */
3060 status = lpfc_sli4_post_status_check(phba);
3063 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3064 lpfc_sli_brdrestart(phba);
3065 status = lpfc_sli4_post_status_check(phba);
3068 /* Check to see if any errors occurred during init */
3070 phba->link_state = LPFC_HBA_ERROR;
3073 phba->sli4_hba.intr_enable = 0;
3079 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3080 * @phba: Pointer to HBA context object.
3081 * @mask: Bit mask to be checked.
3083 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3084 * from the API jump table function pointer from the lpfc_hba struct.
3087 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3089 return phba->lpfc_sli_brdready(phba, mask);
3092 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3095 * lpfc_reset_barrier - Make HBA ready for HBA reset
3096 * @phba: Pointer to HBA context object.
3098 * This function is called before resetting an HBA. This
3099 * function requests HBA to quiesce DMAs before a reset.
3101 void lpfc_reset_barrier(struct lpfc_hba *phba)
3103 uint32_t __iomem *resp_buf;
3104 uint32_t __iomem *mbox_buf;
3105 volatile uint32_t mbox;
3110 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3111 if (hdrtype != 0x80 ||
3112 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3113 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3117 * Tell the other part of the chip to suspend temporarily all
3120 resp_buf = phba->MBslimaddr;
3122 /* Disable the error attention */
3123 hc_copy = readl(phba->HCregaddr);
3124 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3125 readl(phba->HCregaddr); /* flush */
3126 phba->link_flag |= LS_IGNORE_ERATT;
3128 if (readl(phba->HAregaddr) & HA_ERATT) {
3129 /* Clear Chip error bit */
3130 writel(HA_ERATT, phba->HAregaddr);
3131 phba->pport->stopped = 1;
3135 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3136 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3138 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3139 mbox_buf = phba->MBslimaddr;
3140 writel(mbox, mbox_buf);
3143 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3146 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
3147 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3148 phba->pport->stopped)
3154 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3155 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3160 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3163 if (readl(phba->HAregaddr) & HA_ERATT) {
3164 writel(HA_ERATT, phba->HAregaddr);
3165 phba->pport->stopped = 1;
3169 phba->link_flag &= ~LS_IGNORE_ERATT;
3170 writel(hc_copy, phba->HCregaddr);
3171 readl(phba->HCregaddr); /* flush */
3175 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3176 * @phba: Pointer to HBA context object.
3178 * This function issues a kill_board mailbox command and waits for
3179 * the error attention interrupt. This function is called for stopping
3180 * the firmware processing. The caller is not required to hold any
3181 * locks. This function calls lpfc_hba_down_post function to free
3182 * any pending commands after the kill. The function will return 1 when it
3183 * fails to kill the board else will return 0.
3186 lpfc_sli_brdkill(struct lpfc_hba *phba)
3188 struct lpfc_sli *psli;
3198 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3199 "0329 Kill HBA Data: x%x x%x\n",
3200 phba->pport->port_state, psli->sli_flag);
3202 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3206 /* Disable the error attention */
3207 spin_lock_irq(&phba->hbalock);
3208 status = readl(phba->HCregaddr);
3209 status &= ~HC_ERINT_ENA;
3210 writel(status, phba->HCregaddr);
3211 readl(phba->HCregaddr); /* flush */
3212 phba->link_flag |= LS_IGNORE_ERATT;
3213 spin_unlock_irq(&phba->hbalock);
3215 lpfc_kill_board(phba, pmb);
3216 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3217 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3219 if (retval != MBX_SUCCESS) {
3220 if (retval != MBX_BUSY)
3221 mempool_free(pmb, phba->mbox_mem_pool);
3222 spin_lock_irq(&phba->hbalock);
3223 phba->link_flag &= ~LS_IGNORE_ERATT;
3224 spin_unlock_irq(&phba->hbalock);
3228 spin_lock_irq(&phba->hbalock);
3229 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3230 spin_unlock_irq(&phba->hbalock);
3232 mempool_free(pmb, phba->mbox_mem_pool);
3234 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3235 * attention every 100ms for 3 seconds. If we don't get ERATT after
3236 * 3 seconds we still set HBA_ERROR state because the status of the
3237 * board is now undefined.
3239 ha_copy = readl(phba->HAregaddr);
3241 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3243 ha_copy = readl(phba->HAregaddr);
3246 del_timer_sync(&psli->mbox_tmo);
3247 if (ha_copy & HA_ERATT) {
3248 writel(HA_ERATT, phba->HAregaddr);
3249 phba->pport->stopped = 1;
3251 spin_lock_irq(&phba->hbalock);
3252 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3253 psli->mbox_active = NULL;
3254 phba->link_flag &= ~LS_IGNORE_ERATT;
3255 spin_unlock_irq(&phba->hbalock);
3257 lpfc_hba_down_post(phba);
3258 phba->link_state = LPFC_HBA_ERROR;
3260 return ha_copy & HA_ERATT ? 0 : 1;
3264 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3265 * @phba: Pointer to HBA context object.
3267 * This function resets the HBA by writing HC_INITFF to the control
3268 * register. After the HBA resets, this function resets all the iocb ring
3269 * indices. This function disables PCI layer parity checking during
3271 * This function returns 0 always.
3272 * The caller is not required to hold any locks.
3275 lpfc_sli_brdreset(struct lpfc_hba *phba)
3277 struct lpfc_sli *psli;
3278 struct lpfc_sli_ring *pring;
3285 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3286 "0325 Reset HBA Data: x%x x%x\n",
3287 phba->pport->port_state, psli->sli_flag);
3289 /* perform board reset */
3290 phba->fc_eventTag = 0;
3291 phba->link_events = 0;
3292 phba->pport->fc_myDID = 0;
3293 phba->pport->fc_prevDID = 0;
3295 /* Turn off parity checking and serr during the physical reset */
3296 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3297 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3299 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3301 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3303 /* Now toggle INITFF bit in the Host Control Register */
3304 writel(HC_INITFF, phba->HCregaddr);
3306 readl(phba->HCregaddr); /* flush */
3307 writel(0, phba->HCregaddr);
3308 readl(phba->HCregaddr); /* flush */
3310 /* Restore PCI cmd register */
3311 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3313 /* Initialize relevant SLI info */
3314 for (i = 0; i < psli->num_rings; i++) {
3315 pring = &psli->ring[i];
3318 pring->next_cmdidx = 0;
3319 pring->local_getidx = 0;
3321 pring->missbufcnt = 0;
3324 phba->link_state = LPFC_WARM_START;
3329 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3330 * @phba: Pointer to HBA context object.
3332 * This function resets a SLI4 HBA. This function disables PCI layer parity
3333 * checking during resets the device. The caller is not required to hold
3336 * This function returns 0 always.
3339 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3341 struct lpfc_sli *psli = &phba->sli;
3346 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3347 "0295 Reset HBA Data: x%x x%x\n",
3348 phba->pport->port_state, psli->sli_flag);
3350 /* perform board reset */
3351 phba->fc_eventTag = 0;
3352 phba->link_events = 0;
3353 phba->pport->fc_myDID = 0;
3354 phba->pport->fc_prevDID = 0;
3356 /* Turn off parity checking and serr during the physical reset */
3357 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3358 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3360 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3362 spin_lock_irq(&phba->hbalock);
3363 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3364 phba->fcf.fcf_flag = 0;
3365 /* Clean up the child queue list for the CQs */
3366 list_del_init(&phba->sli4_hba.mbx_wq->list);
3367 list_del_init(&phba->sli4_hba.els_wq->list);
3368 list_del_init(&phba->sli4_hba.hdr_rq->list);
3369 list_del_init(&phba->sli4_hba.dat_rq->list);
3370 list_del_init(&phba->sli4_hba.mbx_cq->list);
3371 list_del_init(&phba->sli4_hba.els_cq->list);
3372 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3373 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3374 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3375 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3376 spin_unlock_irq(&phba->hbalock);
3378 /* Now physically reset the device */
3379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3380 "0389 Performing PCI function reset!\n");
3381 /* Perform FCoE PCI function reset */
3382 lpfc_pci_function_reset(phba);
3388 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3389 * @phba: Pointer to HBA context object.
3391 * This function is called in the SLI initialization code path to
3392 * restart the HBA. The caller is not required to hold any lock.
3393 * This function writes MBX_RESTART mailbox command to the SLIM and
3394 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3395 * function to free any pending commands. The function enables
3396 * POST only during the first initialization. The function returns zero.
3397 * The function does not guarantee completion of MBX_RESTART mailbox
3398 * command before the return of this function.
3401 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
3404 struct lpfc_sli *psli;
3405 volatile uint32_t word0;
3406 void __iomem *to_slim;
3407 uint32_t hba_aer_enabled;
3409 spin_lock_irq(&phba->hbalock);
3411 /* Take PCIe device Advanced Error Reporting (AER) state */
3412 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3417 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3418 "0337 Restart HBA Data: x%x x%x\n",
3419 phba->pport->port_state, psli->sli_flag);
3422 mb = (MAILBOX_t *) &word0;
3423 mb->mbxCommand = MBX_RESTART;
3426 lpfc_reset_barrier(phba);
3428 to_slim = phba->MBslimaddr;
3429 writel(*(uint32_t *) mb, to_slim);
3430 readl(to_slim); /* flush */
3432 /* Only skip post after fc_ffinit is completed */
3433 if (phba->pport->port_state)
3434 word0 = 1; /* This is really setting up word1 */
3436 word0 = 0; /* This is really setting up word1 */
3437 to_slim = phba->MBslimaddr + sizeof (uint32_t);
3438 writel(*(uint32_t *) mb, to_slim);
3439 readl(to_slim); /* flush */
3441 lpfc_sli_brdreset(phba);
3442 phba->pport->stopped = 0;
3443 phba->link_state = LPFC_INIT_START;
3445 spin_unlock_irq(&phba->hbalock);
3447 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3448 psli->stats_start = get_seconds();
3450 /* Give the INITFF and Post time to settle. */
3453 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3454 if (hba_aer_enabled)
3455 pci_disable_pcie_error_reporting(phba->pcidev);
3457 lpfc_hba_down_post(phba);
3463 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3464 * @phba: Pointer to HBA context object.
3466 * This function is called in the SLI initialization code path to restart
3467 * a SLI4 HBA. The caller is not required to hold any lock.
3468 * At the end of the function, it calls lpfc_hba_down_post function to
3469 * free any pending commands.
3472 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3474 struct lpfc_sli *psli = &phba->sli;
3478 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3479 "0296 Restart HBA Data: x%x x%x\n",
3480 phba->pport->port_state, psli->sli_flag);
3482 lpfc_sli4_brdreset(phba);
3484 spin_lock_irq(&phba->hbalock);
3485 phba->pport->stopped = 0;
3486 phba->link_state = LPFC_INIT_START;
3488 spin_unlock_irq(&phba->hbalock);
3490 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3491 psli->stats_start = get_seconds();
3493 lpfc_hba_down_post(phba);
3499 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3500 * @phba: Pointer to HBA context object.
3502 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3503 * API jump table function pointer from the lpfc_hba struct.
3506 lpfc_sli_brdrestart(struct lpfc_hba *phba)
3508 return phba->lpfc_sli_brdrestart(phba);
3512 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
3513 * @phba: Pointer to HBA context object.
3515 * This function is called after a HBA restart to wait for successful
3516 * restart of the HBA. Successful restart of the HBA is indicated by
3517 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3518 * iteration, the function will restart the HBA again. The function returns
3519 * zero if HBA successfully restarted else returns negative error code.
3522 lpfc_sli_chipset_init(struct lpfc_hba *phba)
3524 uint32_t status, i = 0;
3526 /* Read the HBA Host Status Register */
3527 status = readl(phba->HSregaddr);
3529 /* Check status register to see what current state is */
3531 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
3533 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3534 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3538 /* Adapter failed to init, timeout, status reg
3540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3541 "0436 Adapter failed to init, "
3542 "timeout, status reg x%x, "
3543 "FW Data: A8 x%x AC x%x\n", status,
3544 readl(phba->MBslimaddr + 0xa8),
3545 readl(phba->MBslimaddr + 0xac));
3546 phba->link_state = LPFC_HBA_ERROR;
3550 /* Check to see if any errors occurred during init */
3551 if (status & HS_FFERM) {
3552 /* ERROR: During chipset initialization */
3553 /* Adapter failed to init, chipset, status reg
3555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3556 "0437 Adapter failed to init, "
3557 "chipset, status reg x%x, "
3558 "FW Data: A8 x%x AC x%x\n", status,
3559 readl(phba->MBslimaddr + 0xa8),
3560 readl(phba->MBslimaddr + 0xac));
3561 phba->link_state = LPFC_HBA_ERROR;
3567 } else if (i <= 10) {
3575 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3576 lpfc_sli_brdrestart(phba);
3578 /* Read the HBA Host Status Register */
3579 status = readl(phba->HSregaddr);
3582 /* Check to see if any errors occurred during init */
3583 if (status & HS_FFERM) {
3584 /* ERROR: During chipset initialization */
3585 /* Adapter failed to init, chipset, status reg <status> */
3586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3587 "0438 Adapter failed to init, chipset, "
3589 "FW Data: A8 x%x AC x%x\n", status,
3590 readl(phba->MBslimaddr + 0xa8),
3591 readl(phba->MBslimaddr + 0xac));
3592 phba->link_state = LPFC_HBA_ERROR;
3596 /* Clear all interrupt enable conditions */
3597 writel(0, phba->HCregaddr);
3598 readl(phba->HCregaddr); /* flush */
3600 /* setup host attn register */
3601 writel(0xffffffff, phba->HAregaddr);
3602 readl(phba->HAregaddr); /* flush */
3607 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
3609 * This function calculates and returns the number of HBQs required to be
3613 lpfc_sli_hbq_count(void)
3615 return ARRAY_SIZE(lpfc_hbq_defs);
3619 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
3621 * This function adds the number of hbq entries in every HBQ to get
3622 * the total number of hbq entries required for the HBA and returns
3626 lpfc_sli_hbq_entry_count(void)
3628 int hbq_count = lpfc_sli_hbq_count();
3632 for (i = 0; i < hbq_count; ++i)
3633 count += lpfc_hbq_defs[i]->entry_count;
3638 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
3640 * This function calculates amount of memory required for all hbq entries
3641 * to be configured and returns the total memory required.
3644 lpfc_sli_hbq_size(void)
3646 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
3650 * lpfc_sli_hbq_setup - configure and initialize HBQs
3651 * @phba: Pointer to HBA context object.
3653 * This function is called during the SLI initialization to configure
3654 * all the HBQs and post buffers to the HBQ. The caller is not
3655 * required to hold any locks. This function will return zero if successful
3656 * else it will return negative error code.
3659 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
3661 int hbq_count = lpfc_sli_hbq_count();
3665 uint32_t hbq_entry_index;
3667 /* Get a Mailbox buffer to setup mailbox
3668 * commands for HBA initialization
3670 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3677 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3678 phba->link_state = LPFC_INIT_MBX_CMDS;
3679 phba->hbq_in_use = 1;
3681 hbq_entry_index = 0;
3682 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
3683 phba->hbqs[hbqno].next_hbqPutIdx = 0;
3684 phba->hbqs[hbqno].hbqPutIdx = 0;
3685 phba->hbqs[hbqno].local_hbqGetIdx = 0;
3686 phba->hbqs[hbqno].entry_count =
3687 lpfc_hbq_defs[hbqno]->entry_count;
3688 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
3689 hbq_entry_index, pmb);
3690 hbq_entry_index += phba->hbqs[hbqno].entry_count;
3692 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
3693 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3694 mbxStatus <status>, ring <num> */
3696 lpfc_printf_log(phba, KERN_ERR,
3697 LOG_SLI | LOG_VPORT,
3698 "1805 Adapter failed to init. "
3699 "Data: x%x x%x x%x\n",
3701 pmbox->mbxStatus, hbqno);
3703 phba->link_state = LPFC_HBA_ERROR;
3704 mempool_free(pmb, phba->mbox_mem_pool);
3708 phba->hbq_count = hbq_count;
3710 mempool_free(pmb, phba->mbox_mem_pool);
3712 /* Initially populate or replenish the HBQs */
3713 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
3714 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
3719 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3720 * @phba: Pointer to HBA context object.
3722 * This function is called during the SLI initialization to configure
3723 * all the HBQs and post buffers to the HBQ. The caller is not
3724 * required to hold any locks. This function will return zero if successful
3725 * else it will return negative error code.
3728 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
3730 phba->hbq_in_use = 1;
3731 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
3732 phba->hbq_count = 1;
3733 /* Initially populate or replenish the HBQs */
3734 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
3739 * lpfc_sli_config_port - Issue config port mailbox command
3740 * @phba: Pointer to HBA context object.
3741 * @sli_mode: sli mode - 2/3
3743 * This function is called by the sli intialization code path
3744 * to issue config_port mailbox command. This function restarts the
3745 * HBA firmware and issues a config_port mailbox command to configure
3746 * the SLI interface in the sli mode specified by sli_mode
3747 * variable. The caller is not required to hold any locks.
3748 * The function returns 0 if successful, else returns negative error
3752 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
3755 uint32_t resetcount = 0, rc = 0, done = 0;
3757 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3759 phba->link_state = LPFC_HBA_ERROR;
3763 phba->sli_rev = sli_mode;
3764 while (resetcount < 2 && !done) {
3765 spin_lock_irq(&phba->hbalock);
3766 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
3767 spin_unlock_irq(&phba->hbalock);
3768 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3769 lpfc_sli_brdrestart(phba);
3770 rc = lpfc_sli_chipset_init(phba);
3774 spin_lock_irq(&phba->hbalock);
3775 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3776 spin_unlock_irq(&phba->hbalock);
3779 /* Call pre CONFIG_PORT mailbox command initialization. A
3780 * value of 0 means the call was successful. Any other
3781 * nonzero value is a failure, but if ERESTART is returned,
3782 * the driver may reset the HBA and try again.
3784 rc = lpfc_config_port_prep(phba);
3785 if (rc == -ERESTART) {
3786 phba->link_state = LPFC_LINK_UNKNOWN;
3790 phba->link_state = LPFC_INIT_MBX_CMDS;
3791 lpfc_config_port(phba, pmb);
3792 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
3793 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3794 LPFC_SLI3_HBQ_ENABLED |
3795 LPFC_SLI3_CRP_ENABLED |
3796 LPFC_SLI3_INB_ENABLED |
3797 LPFC_SLI3_BG_ENABLED);
3798 if (rc != MBX_SUCCESS) {
3799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3800 "0442 Adapter failed to init, mbxCmd x%x "
3801 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
3802 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
3803 spin_lock_irq(&phba->hbalock);
3804 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
3805 spin_unlock_irq(&phba->hbalock);
3808 /* Allow asynchronous mailbox command to go through */
3809 spin_lock_irq(&phba->hbalock);
3810 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
3811 spin_unlock_irq(&phba->hbalock);
3817 goto do_prep_failed;
3819 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
3820 if (!pmb->u.mb.un.varCfgPort.cMA) {
3822 goto do_prep_failed;
3824 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
3825 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3826 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
3827 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
3828 phba->max_vpi : phba->max_vports;
3832 if (pmb->u.mb.un.varCfgPort.gdss)
3833 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
3834 if (pmb->u.mb.un.varCfgPort.gerbm)
3835 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
3836 if (pmb->u.mb.un.varCfgPort.gcrp)
3837 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
3838 if (pmb->u.mb.un.varCfgPort.ginb) {
3839 phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
3840 phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
3841 phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
3842 phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
3843 phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
3844 phba->inb_last_counter =
3845 phba->mbox->us.s3_inb_pgp.counter;
3847 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
3848 phba->port_gp = phba->mbox->us.s3_pgp.port;
3849 phba->inb_ha_copy = NULL;
3850 phba->inb_counter = NULL;
3853 if (phba->cfg_enable_bg) {
3854 if (pmb->u.mb.un.varCfgPort.gbg)
3855 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3858 "0443 Adapter did not grant "
3862 phba->hbq_get = NULL;
3863 phba->port_gp = phba->mbox->us.s2.port;
3864 phba->inb_ha_copy = NULL;
3865 phba->inb_counter = NULL;
3869 mempool_free(pmb, phba->mbox_mem_pool);
3875 * lpfc_sli_hba_setup - SLI intialization function
3876 * @phba: Pointer to HBA context object.
3878 * This function is the main SLI intialization function. This function
3879 * is called by the HBA intialization code, HBA reset code and HBA
3880 * error attention handler code. Caller is not required to hold any
3881 * locks. This function issues config_port mailbox command to configure
3882 * the SLI, setup iocb rings and HBQ rings. In the end the function
3883 * calls the config_port_post function to issue init_link mailbox
3884 * command and to start the discovery. The function will return zero
3885 * if successful, else it will return negative error code.
3888 lpfc_sli_hba_setup(struct lpfc_hba *phba)
3893 switch (lpfc_sli_mode) {
3895 if (phba->cfg_enable_npiv) {
3896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3897 "1824 NPIV enabled: Override lpfc_sli_mode "
3898 "parameter (%d) to auto (0).\n",
3908 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3909 "1819 Unrecognized lpfc_sli_mode "
3910 "parameter: %d.\n", lpfc_sli_mode);
3915 rc = lpfc_sli_config_port(phba, mode);
3917 if (rc && lpfc_sli_mode == 3)
3918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
3919 "1820 Unable to select SLI-3. "
3920 "Not supported by adapter.\n");
3921 if (rc && mode != 2)
3922 rc = lpfc_sli_config_port(phba, 2);
3924 goto lpfc_sli_hba_setup_error;
3926 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
3927 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
3928 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3930 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3931 "2709 This device supports "
3932 "Advanced Error Reporting (AER)\n");
3933 spin_lock_irq(&phba->hbalock);
3934 phba->hba_flag |= HBA_AER_ENABLED;
3935 spin_unlock_irq(&phba->hbalock);
3937 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3938 "2708 This device does not support "
3939 "Advanced Error Reporting (AER)\n");
3940 phba->cfg_aer_support = 0;
3944 if (phba->sli_rev == 3) {
3945 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
3946 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
3948 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
3949 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
3950 phba->sli3_options = 0;
3953 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3954 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
3955 phba->sli_rev, phba->max_vpi);
3956 rc = lpfc_sli_ring_map(phba);
3959 goto lpfc_sli_hba_setup_error;
3962 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
3963 rc = lpfc_sli_hbq_setup(phba);
3965 goto lpfc_sli_hba_setup_error;
3967 spin_lock_irq(&phba->hbalock);
3968 phba->sli.sli_flag |= LPFC_PROCESS_LA;
3969 spin_unlock_irq(&phba->hbalock);
3971 rc = lpfc_config_port_post(phba);
3973 goto lpfc_sli_hba_setup_error;
3977 lpfc_sli_hba_setup_error:
3978 phba->link_state = LPFC_HBA_ERROR;
3979 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3980 "0445 Firmware initialization failed\n");
3985 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
3986 * @phba: Pointer to HBA context object.
3987 * @mboxq: mailbox pointer.
3988 * This function issue a dump mailbox command to read config region
3989 * 23 and parse the records in the region and populate driver
3993 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
3994 LPFC_MBOXQ_t *mboxq)
3996 struct lpfc_dmabuf *mp;
3997 struct lpfc_mqe *mqe;
3998 uint32_t data_length;
4001 /* Program the default value of vlan_id and fc_map */
4002 phba->valid_vlan = 0;
4003 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4004 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4005 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4007 mqe = &mboxq->u.mqe;
4008 if (lpfc_dump_fcoe_param(phba, mboxq))
4011 mp = (struct lpfc_dmabuf *) mboxq->context1;
4012 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4014 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4015 "(%d):2571 Mailbox cmd x%x Status x%x "
4016 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4017 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4018 "CQ: x%x x%x x%x x%x\n",
4019 mboxq->vport ? mboxq->vport->vpi : 0,
4020 bf_get(lpfc_mqe_command, mqe),
4021 bf_get(lpfc_mqe_status, mqe),
4022 mqe->un.mb_words[0], mqe->un.mb_words[1],
4023 mqe->un.mb_words[2], mqe->un.mb_words[3],
4024 mqe->un.mb_words[4], mqe->un.mb_words[5],
4025 mqe->un.mb_words[6], mqe->un.mb_words[7],
4026 mqe->un.mb_words[8], mqe->un.mb_words[9],
4027 mqe->un.mb_words[10], mqe->un.mb_words[11],
4028 mqe->un.mb_words[12], mqe->un.mb_words[13],
4029 mqe->un.mb_words[14], mqe->un.mb_words[15],
4030 mqe->un.mb_words[16], mqe->un.mb_words[50],
4032 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4033 mboxq->mcqe.trailer);
4036 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4040 data_length = mqe->un.mb_words[5];
4041 if (data_length > DMP_RGN23_SIZE) {
4042 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4047 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4048 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4054 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4055 * @phba: pointer to lpfc hba data structure.
4056 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4057 * @vpd: pointer to the memory to hold resulting port vpd data.
4058 * @vpd_size: On input, the number of bytes allocated to @vpd.
4059 * On output, the number of data bytes in @vpd.
4061 * This routine executes a READ_REV SLI4 mailbox command. In
4062 * addition, this routine gets the port vpd data.
4066 * ENOMEM - could not allocated memory.
4069 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4070 uint8_t *vpd, uint32_t *vpd_size)
4074 struct lpfc_dmabuf *dmabuf;
4075 struct lpfc_mqe *mqe;
4077 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4082 * Get a DMA buffer for the vpd data resulting from the READ_REV
4085 dma_size = *vpd_size;
4086 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4090 if (!dmabuf->virt) {
4094 memset(dmabuf->virt, 0, dma_size);
4097 * The SLI4 implementation of READ_REV conflicts at word1,
4098 * bits 31:16 and SLI4 adds vpd functionality not present
4099 * in SLI3. This code corrects the conflicts.
4101 lpfc_read_rev(phba, mboxq);
4102 mqe = &mboxq->u.mqe;
4103 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4104 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4105 mqe->un.read_rev.word1 &= 0x0000FFFF;
4106 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4107 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4109 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4111 dma_free_coherent(&phba->pcidev->dev, dma_size,
4112 dmabuf->virt, dmabuf->phys);
4117 * The available vpd length cannot be bigger than the
4118 * DMA buffer passed to the port. Catch the less than
4119 * case and update the caller's size.
4121 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4122 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4124 lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size);
4125 dma_free_coherent(&phba->pcidev->dev, dma_size,
4126 dmabuf->virt, dmabuf->phys);
4132 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4133 * @phba: pointer to lpfc hba data structure.
4135 * This routine is called to explicitly arm the SLI4 device's completion and
4139 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4143 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4144 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4145 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4146 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4148 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4149 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4150 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4155 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4156 * @phba: Pointer to HBA context object.
4158 * This function is the main SLI4 device intialization PCI function. This
4159 * function is called by the HBA intialization code, HBA reset code and
4160 * HBA error attention handler code. Caller is not required to hold any
4164 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4167 LPFC_MBOXQ_t *mboxq;
4168 struct lpfc_mqe *mqe;
4171 uint32_t ftr_rsp = 0;
4172 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4173 struct lpfc_vport *vport = phba->pport;
4174 struct lpfc_dmabuf *mp;
4176 /* Perform a PCI function reset to start from clean */
4177 rc = lpfc_pci_function_reset(phba);
4181 /* Check the HBA Host Status Register for readyness */
4182 rc = lpfc_sli4_post_status_check(phba);
4186 spin_lock_irq(&phba->hbalock);
4187 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4188 spin_unlock_irq(&phba->hbalock);
4192 * Allocate a single mailbox container for initializing the
4195 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4200 * Continue initialization with default values even if driver failed
4201 * to read FCoE param config regions
4203 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4204 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4205 "2570 Failed to read FCoE parameters\n");
4207 /* Issue READ_REV to collect vpd and FW information. */
4208 vpd_size = PAGE_SIZE;
4209 vpd = kzalloc(vpd_size, GFP_KERNEL);
4215 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
4219 mqe = &mboxq->u.mqe;
4220 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4221 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
4222 phba->hba_flag |= HBA_FCOE_SUPPORT;
4224 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
4226 phba->hba_flag |= HBA_FIP_SUPPORT;
4228 phba->hba_flag &= ~HBA_FIP_SUPPORT;
4230 if (phba->sli_rev != LPFC_SLI_REV4 ||
4231 !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
4232 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4233 "0376 READ_REV Error. SLI Level %d "
4234 "FCoE enabled %d\n",
4235 phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
4240 * Evaluate the read rev and vpd data. Populate the driver
4241 * state with the results. If this routine fails, the failure
4242 * is not fatal as the driver will use generic values.
4244 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4245 if (unlikely(!rc)) {
4246 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4247 "0377 Error %d parsing vpd. "
4248 "Using defaults.\n", rc);
4252 /* Save information as VPD data */
4253 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4254 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4255 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4256 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4258 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4260 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4262 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4264 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4265 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4266 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4267 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4268 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4269 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4270 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4271 "(%d):0380 READ_REV Status x%x "
4272 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4273 mboxq->vport ? mboxq->vport->vpi : 0,
4274 bf_get(lpfc_mqe_status, mqe),
4275 phba->vpd.rev.opFwName,
4276 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4277 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
4280 * Discover the port's supported feature set and match it against the
4283 lpfc_request_features(phba, mboxq);
4284 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4291 * The port must support FCP initiator mode as this is the
4292 * only mode running in the host.
4294 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4295 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4296 "0378 No support for fcpi mode.\n");
4301 * If the port cannot support the host's requested features
4302 * then turn off the global config parameters to disable the
4303 * feature in the driver. This is not a fatal error.
4305 if ((phba->cfg_enable_bg) &&
4306 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4309 if (phba->max_vpi && phba->cfg_enable_npiv &&
4310 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4314 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4315 "0379 Feature Mismatch Data: x%08x %08x "
4316 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4317 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4318 phba->cfg_enable_npiv, phba->max_vpi);
4319 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4320 phba->cfg_enable_bg = 0;
4321 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4322 phba->cfg_enable_npiv = 0;
4325 /* These SLI3 features are assumed in SLI4 */
4326 spin_lock_irq(&phba->hbalock);
4327 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4328 spin_unlock_irq(&phba->hbalock);
4330 /* Read the port's service parameters. */
4331 lpfc_read_sparam(phba, mboxq, vport->vpi);
4332 mboxq->vport = vport;
4333 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4334 mp = (struct lpfc_dmabuf *) mboxq->context1;
4335 if (rc == MBX_SUCCESS) {
4336 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4341 * This memory was allocated by the lpfc_read_sparam routine. Release
4342 * it to the mbuf pool.
4344 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4346 mboxq->context1 = NULL;
4348 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4349 "0382 READ_SPARAM command failed "
4350 "status %d, mbxStatus x%x\n",
4351 rc, bf_get(lpfc_mqe_status, mqe));
4352 phba->link_state = LPFC_HBA_ERROR;
4357 if (phba->cfg_soft_wwnn)
4358 u64_to_wwn(phba->cfg_soft_wwnn,
4359 vport->fc_sparam.nodeName.u.wwn);
4360 if (phba->cfg_soft_wwpn)
4361 u64_to_wwn(phba->cfg_soft_wwpn,
4362 vport->fc_sparam.portName.u.wwn);
4363 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4364 sizeof(struct lpfc_name));
4365 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4366 sizeof(struct lpfc_name));
4368 /* Update the fc_host data structures with new wwn. */
4369 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4370 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4372 /* Register SGL pool to the device using non-embedded mailbox command */
4373 rc = lpfc_sli4_post_sgl_list(phba);
4375 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4376 "0582 Error %d during sgl post operation\n",
4382 /* Register SCSI SGL pool to the device */
4383 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4385 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4386 "0383 Error %d during scsi sgl post "
4388 /* Some Scsi buffers were moved to the abort scsi list */
4389 /* A pci function reset will repost them */
4394 /* Post the rpi header region to the device. */
4395 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4397 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4398 "0393 Error %d during rpi post operation\n",
4404 /* Set up all the queues to the device */
4405 rc = lpfc_sli4_queue_setup(phba);
4407 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4408 "0381 Error %d during queue setup.\n ", rc);
4409 goto out_stop_timers;
4412 /* Arm the CQs and then EQs on device */
4413 lpfc_sli4_arm_cqeq_intr(phba);
4415 /* Indicate device interrupt mode */
4416 phba->sli4_hba.intr_enable = 1;
4418 /* Allow asynchronous mailbox command to go through */
4419 spin_lock_irq(&phba->hbalock);
4420 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4421 spin_unlock_irq(&phba->hbalock);
4423 /* Post receive buffers to the device */
4424 lpfc_sli4_rb_setup(phba);
4426 /* Start the ELS watchdog timer */
4427 mod_timer(&vport->els_tmofunc,
4428 jiffies + HZ * (phba->fc_ratov * 2));
4430 /* Start heart beat timer */
4431 mod_timer(&phba->hb_tmofunc,
4432 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4433 phba->hb_outstanding = 0;
4434 phba->last_completion_time = jiffies;
4436 /* Start error attention (ERATT) polling timer */
4437 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4440 * The port is ready, set the host's link state to LINK_DOWN
4441 * in preparation for link interrupts.
4443 lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
4444 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4445 lpfc_set_loopback_flag(phba);
4446 /* Change driver state to LPFC_LINK_DOWN right before init link */
4447 spin_lock_irq(&phba->hbalock);
4448 phba->link_state = LPFC_LINK_DOWN;
4449 spin_unlock_irq(&phba->hbalock);
4450 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
4451 if (unlikely(rc != MBX_NOT_FINISHED)) {
4457 /* Unset all the queues set up in this routine when error out */
4459 lpfc_sli4_queue_unset(phba);
4463 lpfc_stop_hba_timers(phba);
4467 mempool_free(mboxq, phba->mbox_mem_pool);
4472 * lpfc_mbox_timeout - Timeout call back function for mbox timer
4473 * @ptr: context object - pointer to hba structure.
4475 * This is the callback function for mailbox timer. The mailbox
4476 * timer is armed when a new mailbox command is issued and the timer
4477 * is deleted when the mailbox complete. The function is called by
4478 * the kernel timer code when a mailbox does not complete within
4479 * expected time. This function wakes up the worker thread to
4480 * process the mailbox timeout and returns. All the processing is
4481 * done by the worker thread function lpfc_mbox_timeout_handler.
4484 lpfc_mbox_timeout(unsigned long ptr)
4486 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
4487 unsigned long iflag;
4488 uint32_t tmo_posted;
4490 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
4491 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
4493 phba->pport->work_port_events |= WORKER_MBOX_TMO;
4494 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
4497 lpfc_worker_wake_up(phba);
4503 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
4504 * @phba: Pointer to HBA context object.
4506 * This function is called from worker thread when a mailbox command times out.
4507 * The caller is not required to hold any locks. This function will reset the
4508 * HBA and recover all the pending commands.
4511 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
4513 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
4514 MAILBOX_t *mb = &pmbox->u.mb;
4515 struct lpfc_sli *psli = &phba->sli;
4516 struct lpfc_sli_ring *pring;
4518 /* Check the pmbox pointer first. There is a race condition
4519 * between the mbox timeout handler getting executed in the
4520 * worklist and the mailbox actually completing. When this
4521 * race condition occurs, the mbox_active will be NULL.
4523 spin_lock_irq(&phba->hbalock);
4524 if (pmbox == NULL) {
4525 lpfc_printf_log(phba, KERN_WARNING,
4527 "0353 Active Mailbox cleared - mailbox timeout "
4529 spin_unlock_irq(&phba->hbalock);
4533 /* Mbox cmd <mbxCommand> timeout */
4534 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4535 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
4537 phba->pport->port_state,
4539 phba->sli.mbox_active);
4540 spin_unlock_irq(&phba->hbalock);
4542 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4543 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4544 * it to fail all oustanding SCSI IO.
4546 spin_lock_irq(&phba->pport->work_port_lock);
4547 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
4548 spin_unlock_irq(&phba->pport->work_port_lock);
4549 spin_lock_irq(&phba->hbalock);
4550 phba->link_state = LPFC_LINK_UNKNOWN;
4551 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4552 spin_unlock_irq(&phba->hbalock);
4554 pring = &psli->ring[psli->fcp_ring];
4555 lpfc_sli_abort_iocb_ring(phba, pring);
4557 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4558 "0345 Resetting board due to mailbox timeout\n");
4560 /* Reset the HBA device */
4561 lpfc_reset_hba(phba);
4565 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
4566 * @phba: Pointer to HBA context object.
4567 * @pmbox: Pointer to mailbox object.
4568 * @flag: Flag indicating how the mailbox need to be processed.
4570 * This function is called by discovery code and HBA management code
4571 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4572 * function gets the hbalock to protect the data structures.
4573 * The mailbox command can be submitted in polling mode, in which case
4574 * this function will wait in a polling loop for the completion of the
4576 * If the mailbox is submitted in no_wait mode (not polling) the
4577 * function will submit the command and returns immediately without waiting
4578 * for the mailbox completion. The no_wait is supported only when HBA
4579 * is in SLI2/SLI3 mode - interrupts are enabled.
4580 * The SLI interface allows only one mailbox pending at a time. If the
4581 * mailbox is issued in polling mode and there is already a mailbox
4582 * pending, then the function will return an error. If the mailbox is issued
4583 * in NO_WAIT mode and there is a mailbox pending already, the function
4584 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4585 * The sli layer owns the mailbox object until the completion of mailbox
4586 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4587 * return codes the caller owns the mailbox command after the return of
4591 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
4595 struct lpfc_sli *psli = &phba->sli;
4596 uint32_t status, evtctr;
4599 unsigned long timeout;
4600 unsigned long drvr_flag = 0;
4601 uint32_t word0, ldata;
4602 void __iomem *to_slim;
4603 int processing_queue = 0;
4605 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4607 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4608 /* processing mbox queue from intr_handler */
4609 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
4610 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4613 processing_queue = 1;
4614 pmbox = lpfc_mbox_get(phba);
4616 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4621 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
4622 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
4624 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4625 lpfc_printf_log(phba, KERN_ERR,
4626 LOG_MBOX | LOG_VPORT,
4627 "1806 Mbox x%x failed. No vport\n",
4628 pmbox->u.mb.mbxCommand);
4630 goto out_not_finished;
4634 /* If the PCI channel is in offline state, do not post mbox. */
4635 if (unlikely(pci_channel_offline(phba->pcidev))) {
4636 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4637 goto out_not_finished;
4640 /* If HBA has a deferred error attention, fail the iocb. */
4641 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
4642 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4643 goto out_not_finished;
4649 status = MBX_SUCCESS;
4651 if (phba->link_state == LPFC_HBA_ERROR) {
4652 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4654 /* Mbox command <mbxCommand> cannot issue */
4655 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4656 "(%d):0311 Mailbox command x%x cannot "
4657 "issue Data: x%x x%x\n",
4658 pmbox->vport ? pmbox->vport->vpi : 0,
4659 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4660 goto out_not_finished;
4663 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
4664 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
4665 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4666 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4667 "(%d):2528 Mailbox command x%x cannot "
4668 "issue Data: x%x x%x\n",
4669 pmbox->vport ? pmbox->vport->vpi : 0,
4670 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4671 goto out_not_finished;
4674 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
4675 /* Polling for a mbox command when another one is already active
4676 * is not allowed in SLI. Also, the driver must have established
4677 * SLI2 mode to queue and process multiple mbox commands.
4680 if (flag & MBX_POLL) {
4681 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4683 /* Mbox command <mbxCommand> cannot issue */
4684 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4685 "(%d):2529 Mailbox command x%x "
4686 "cannot issue Data: x%x x%x\n",
4687 pmbox->vport ? pmbox->vport->vpi : 0,
4688 pmbox->u.mb.mbxCommand,
4689 psli->sli_flag, flag);
4690 goto out_not_finished;
4693 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
4694 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4695 /* Mbox command <mbxCommand> cannot issue */
4696 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4697 "(%d):2530 Mailbox command x%x "
4698 "cannot issue Data: x%x x%x\n",
4699 pmbox->vport ? pmbox->vport->vpi : 0,
4700 pmbox->u.mb.mbxCommand,
4701 psli->sli_flag, flag);
4702 goto out_not_finished;
4705 /* Another mailbox command is still being processed, queue this
4706 * command to be processed later.
4708 lpfc_mbox_put(phba, pmbox);
4710 /* Mbox cmd issue - BUSY */
4711 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4712 "(%d):0308 Mbox cmd issue - BUSY Data: "
4713 "x%x x%x x%x x%x\n",
4714 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
4715 mb->mbxCommand, phba->pport->port_state,
4716 psli->sli_flag, flag);
4718 psli->slistat.mbox_busy++;
4719 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4722 lpfc_debugfs_disc_trc(pmbox->vport,
4723 LPFC_DISC_TRC_MBOX_VPORT,
4724 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4725 (uint32_t)mb->mbxCommand,
4726 mb->un.varWords[0], mb->un.varWords[1]);
4729 lpfc_debugfs_disc_trc(phba->pport,
4731 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4732 (uint32_t)mb->mbxCommand,
4733 mb->un.varWords[0], mb->un.varWords[1]);
4739 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4741 /* If we are not polling, we MUST be in SLI2 mode */
4742 if (flag != MBX_POLL) {
4743 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
4744 (mb->mbxCommand != MBX_KILL_BOARD)) {
4745 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4746 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4747 /* Mbox command <mbxCommand> cannot issue */
4748 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4749 "(%d):2531 Mailbox command x%x "
4750 "cannot issue Data: x%x x%x\n",
4751 pmbox->vport ? pmbox->vport->vpi : 0,
4752 pmbox->u.mb.mbxCommand,
4753 psli->sli_flag, flag);
4754 goto out_not_finished;
4756 /* timeout active mbox command */
4757 mod_timer(&psli->mbox_tmo, (jiffies +
4758 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
4761 /* Mailbox cmd <cmd> issue */
4762 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4763 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
4765 pmbox->vport ? pmbox->vport->vpi : 0,
4766 mb->mbxCommand, phba->pport->port_state,
4767 psli->sli_flag, flag);
4769 if (mb->mbxCommand != MBX_HEARTBEAT) {
4771 lpfc_debugfs_disc_trc(pmbox->vport,
4772 LPFC_DISC_TRC_MBOX_VPORT,
4773 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4774 (uint32_t)mb->mbxCommand,
4775 mb->un.varWords[0], mb->un.varWords[1]);
4778 lpfc_debugfs_disc_trc(phba->pport,
4780 "MBOX Send: cmd:x%x mb:x%x x%x",
4781 (uint32_t)mb->mbxCommand,
4782 mb->un.varWords[0], mb->un.varWords[1]);
4786 psli->slistat.mbox_cmd++;
4787 evtctr = psli->slistat.mbox_event;
4789 /* next set own bit for the adapter and copy over command word */
4790 mb->mbxOwner = OWN_CHIP;
4792 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4793 /* First copy command data to host SLIM area */
4794 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4796 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4797 /* copy command data into host mbox for cmpl */
4798 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4801 /* First copy mbox command data to HBA SLIM, skip past first
4803 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4804 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
4805 MAILBOX_CMD_SIZE - sizeof (uint32_t));
4807 /* Next copy over first word, with mbxOwner set */
4808 ldata = *((uint32_t *)mb);
4809 to_slim = phba->MBslimaddr;
4810 writel(ldata, to_slim);
4811 readl(to_slim); /* flush */
4813 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4814 /* switch over to host mailbox */
4815 psli->sli_flag |= LPFC_SLI_ACTIVE;
4823 /* Set up reference to mailbox command */
4824 psli->mbox_active = pmbox;
4825 /* Interrupt board to do it */
4826 writel(CA_MBATT, phba->CAregaddr);
4827 readl(phba->CAregaddr); /* flush */
4828 /* Don't wait for it to finish, just return */
4832 /* Set up null reference to mailbox command */
4833 psli->mbox_active = NULL;
4834 /* Interrupt board to do it */
4835 writel(CA_MBATT, phba->CAregaddr);
4836 readl(phba->CAregaddr); /* flush */
4838 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4839 /* First read mbox status word */
4840 word0 = *((uint32_t *)phba->mbox);
4841 word0 = le32_to_cpu(word0);
4843 /* First read mbox status word */
4844 word0 = readl(phba->MBslimaddr);
4847 /* Read the HBA Host Attention Register */
4848 ha_copy = readl(phba->HAregaddr);
4849 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
4853 /* Wait for command to complete */
4854 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
4855 (!(ha_copy & HA_MBATT) &&
4856 (phba->link_state > LPFC_WARM_START))) {
4857 if (time_after(jiffies, timeout)) {
4858 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4859 spin_unlock_irqrestore(&phba->hbalock,
4861 goto out_not_finished;
4864 /* Check if we took a mbox interrupt while we were
4866 if (((word0 & OWN_CHIP) != OWN_CHIP)
4867 && (evtctr != psli->slistat.mbox_event))
4871 spin_unlock_irqrestore(&phba->hbalock,
4874 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4877 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4878 /* First copy command data */
4879 word0 = *((uint32_t *)phba->mbox);
4880 word0 = le32_to_cpu(word0);
4881 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4884 /* Check real SLIM for any errors */
4885 slimword0 = readl(phba->MBslimaddr);
4886 slimmb = (MAILBOX_t *) & slimword0;
4887 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
4888 && slimmb->mbxStatus) {
4895 /* First copy command data */
4896 word0 = readl(phba->MBslimaddr);
4898 /* Read the HBA Host Attention Register */
4899 ha_copy = readl(phba->HAregaddr);
4902 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4903 /* copy results back to user */
4904 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
4906 /* First copy command data */
4907 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
4909 if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
4911 lpfc_memcpy_from_slim((void *)pmbox->context2,
4912 phba->MBslimaddr + DMP_RSP_OFFSET,
4913 mb->un.varDmp.word_cnt);
4917 writel(HA_MBATT, phba->HAregaddr);
4918 readl(phba->HAregaddr); /* flush */
4920 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4921 status = mb->mbxStatus;
4924 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4928 if (processing_queue) {
4929 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
4930 lpfc_mbox_cmpl_put(phba, pmbox);
4932 return MBX_NOT_FINISHED;
4936 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
4937 * @phba: Pointer to HBA context object.
4939 * The function blocks the posting of SLI4 asynchronous mailbox commands from
4940 * the driver internal pending mailbox queue. It will then try to wait out the
4941 * possible outstanding mailbox command before return.
4944 * 0 - the outstanding mailbox command completed; otherwise, the wait for
4945 * the outstanding mailbox command timed out.
4948 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
4950 struct lpfc_sli *psli = &phba->sli;
4951 uint8_t actcmd = MBX_HEARTBEAT;
4953 unsigned long timeout;
4955 /* Mark the asynchronous mailbox command posting as blocked */
4956 spin_lock_irq(&phba->hbalock);
4957 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
4958 if (phba->sli.mbox_active)
4959 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
4960 spin_unlock_irq(&phba->hbalock);
4961 /* Determine how long we might wait for the active mailbox
4962 * command to be gracefully completed by firmware.
4964 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
4966 /* Wait for the outstnading mailbox command to complete */
4967 while (phba->sli.mbox_active) {
4968 /* Check active mailbox complete status every 2ms */
4970 if (time_after(jiffies, timeout)) {
4971 /* Timeout, marked the outstanding cmd not complete */
4977 /* Can not cleanly block async mailbox command, fails it */
4979 spin_lock_irq(&phba->hbalock);
4980 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4981 spin_unlock_irq(&phba->hbalock);
4987 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
4988 * @phba: Pointer to HBA context object.
4990 * The function unblocks and resume posting of SLI4 asynchronous mailbox
4991 * commands from the driver internal pending mailbox queue. It makes sure
4992 * that there is no outstanding mailbox command before resuming posting
4993 * asynchronous mailbox commands. If, for any reason, there is outstanding
4994 * mailbox command, it will try to wait it out before resuming asynchronous
4995 * mailbox command posting.
4998 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5000 struct lpfc_sli *psli = &phba->sli;
5002 spin_lock_irq(&phba->hbalock);
5003 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5004 /* Asynchronous mailbox posting is not blocked, do nothing */
5005 spin_unlock_irq(&phba->hbalock);
5009 /* Outstanding synchronous mailbox command is guaranteed to be done,
5010 * successful or timeout, after timing-out the outstanding mailbox
5011 * command shall always be removed, so just unblock posting async
5012 * mailbox command and resume
5014 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5015 spin_unlock_irq(&phba->hbalock);
5017 /* wake up worker thread to post asynchronlous mailbox command */
5018 lpfc_worker_wake_up(phba);
5022 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5023 * @phba: Pointer to HBA context object.
5024 * @mboxq: Pointer to mailbox object.
5026 * The function posts a mailbox to the port. The mailbox is expected
5027 * to be comletely filled in and ready for the port to operate on it.
5028 * This routine executes a synchronous completion operation on the
5029 * mailbox by polling for its completion.
5031 * The caller must not be holding any locks when calling this routine.
5034 * MBX_SUCCESS - mailbox posted successfully
5035 * Any of the MBX error values.
5038 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5040 int rc = MBX_SUCCESS;
5041 unsigned long iflag;
5043 uint32_t mcqe_status;
5045 unsigned long timeout;
5046 struct lpfc_sli *psli = &phba->sli;
5047 struct lpfc_mqe *mb = &mboxq->u.mqe;
5048 struct lpfc_bmbx_create *mbox_rgn;
5049 struct dma_address *dma_address;
5050 struct lpfc_register bmbx_reg;
5053 * Only one mailbox can be active to the bootstrap mailbox region
5054 * at a time and there is no queueing provided.
5056 spin_lock_irqsave(&phba->hbalock, iflag);
5057 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5058 spin_unlock_irqrestore(&phba->hbalock, iflag);
5059 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5060 "(%d):2532 Mailbox command x%x (x%x) "
5061 "cannot issue Data: x%x x%x\n",
5062 mboxq->vport ? mboxq->vport->vpi : 0,
5063 mboxq->u.mb.mbxCommand,
5064 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5065 psli->sli_flag, MBX_POLL);
5066 return MBXERR_ERROR;
5068 /* The server grabs the token and owns it until release */
5069 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5070 phba->sli.mbox_active = mboxq;
5071 spin_unlock_irqrestore(&phba->hbalock, iflag);
5074 * Initialize the bootstrap memory region to avoid stale data areas
5075 * in the mailbox post. Then copy the caller's mailbox contents to
5076 * the bmbx mailbox region.
5078 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5079 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5080 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5081 sizeof(struct lpfc_mqe));
5083 /* Post the high mailbox dma address to the port and wait for ready. */
5084 dma_address = &phba->sli4_hba.bmbx.dma_address;
5085 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5087 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5090 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5091 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5095 if (time_after(jiffies, timeout)) {
5099 } while (!db_ready);
5101 /* Post the low mailbox dma address to the port. */
5102 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5103 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5106 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5107 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5111 if (time_after(jiffies, timeout)) {
5115 } while (!db_ready);
5118 * Read the CQ to ensure the mailbox has completed.
5119 * If so, update the mailbox status so that the upper layers
5120 * can complete the request normally.
5122 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5123 sizeof(struct lpfc_mqe));
5124 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5125 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5126 sizeof(struct lpfc_mcqe));
5127 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5129 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5130 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5131 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5135 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5136 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5137 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5138 " x%x x%x CQ: x%x x%x x%x x%x\n",
5139 mboxq->vport ? mboxq->vport->vpi : 0,
5140 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5141 bf_get(lpfc_mqe_status, mb),
5142 mb->un.mb_words[0], mb->un.mb_words[1],
5143 mb->un.mb_words[2], mb->un.mb_words[3],
5144 mb->un.mb_words[4], mb->un.mb_words[5],
5145 mb->un.mb_words[6], mb->un.mb_words[7],
5146 mb->un.mb_words[8], mb->un.mb_words[9],
5147 mb->un.mb_words[10], mb->un.mb_words[11],
5148 mb->un.mb_words[12], mboxq->mcqe.word0,
5149 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5150 mboxq->mcqe.trailer);
5152 /* We are holding the token, no needed for lock when release */
5153 spin_lock_irqsave(&phba->hbalock, iflag);
5154 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5155 phba->sli.mbox_active = NULL;
5156 spin_unlock_irqrestore(&phba->hbalock, iflag);
5161 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5162 * @phba: Pointer to HBA context object.
5163 * @pmbox: Pointer to mailbox object.
5164 * @flag: Flag indicating how the mailbox need to be processed.
5166 * This function is called by discovery code and HBA management code to submit
5167 * a mailbox command to firmware with SLI-4 interface spec.
5169 * Return codes the caller owns the mailbox command after the return of the
5173 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5176 struct lpfc_sli *psli = &phba->sli;
5177 unsigned long iflags;
5180 rc = lpfc_mbox_dev_check(phba);
5182 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5183 "(%d):2544 Mailbox command x%x (x%x) "
5184 "cannot issue Data: x%x x%x\n",
5185 mboxq->vport ? mboxq->vport->vpi : 0,
5186 mboxq->u.mb.mbxCommand,
5187 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5188 psli->sli_flag, flag);
5189 goto out_not_finished;
5192 /* Detect polling mode and jump to a handler */
5193 if (!phba->sli4_hba.intr_enable) {
5194 if (flag == MBX_POLL)
5195 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5198 if (rc != MBX_SUCCESS)
5199 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5200 "(%d):2541 Mailbox command x%x "
5201 "(x%x) cannot issue Data: x%x x%x\n",
5202 mboxq->vport ? mboxq->vport->vpi : 0,
5203 mboxq->u.mb.mbxCommand,
5204 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5205 psli->sli_flag, flag);
5207 } else if (flag == MBX_POLL) {
5208 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5209 "(%d):2542 Try to issue mailbox command "
5210 "x%x (x%x) synchronously ahead of async"
5211 "mailbox command queue: x%x x%x\n",
5212 mboxq->vport ? mboxq->vport->vpi : 0,
5213 mboxq->u.mb.mbxCommand,
5214 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5215 psli->sli_flag, flag);
5216 /* Try to block the asynchronous mailbox posting */
5217 rc = lpfc_sli4_async_mbox_block(phba);
5219 /* Successfully blocked, now issue sync mbox cmd */
5220 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5221 if (rc != MBX_SUCCESS)
5222 lpfc_printf_log(phba, KERN_ERR,
5224 "(%d):2597 Mailbox command "
5225 "x%x (x%x) cannot issue "
5228 mboxq->vport->vpi : 0,
5229 mboxq->u.mb.mbxCommand,
5230 lpfc_sli4_mbox_opcode_get(phba,
5232 psli->sli_flag, flag);
5233 /* Unblock the async mailbox posting afterward */
5234 lpfc_sli4_async_mbox_unblock(phba);
5239 /* Now, interrupt mode asynchrous mailbox command */
5240 rc = lpfc_mbox_cmd_check(phba, mboxq);
5242 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5243 "(%d):2543 Mailbox command x%x (x%x) "
5244 "cannot issue Data: x%x x%x\n",
5245 mboxq->vport ? mboxq->vport->vpi : 0,
5246 mboxq->u.mb.mbxCommand,
5247 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5248 psli->sli_flag, flag);
5249 goto out_not_finished;
5252 /* Put the mailbox command to the driver internal FIFO */
5253 psli->slistat.mbox_busy++;
5254 spin_lock_irqsave(&phba->hbalock, iflags);
5255 lpfc_mbox_put(phba, mboxq);
5256 spin_unlock_irqrestore(&phba->hbalock, iflags);
5257 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5258 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5259 "x%x (x%x) x%x x%x x%x\n",
5260 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5261 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5262 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5263 phba->pport->port_state,
5264 psli->sli_flag, MBX_NOWAIT);
5265 /* Wake up worker thread to transport mailbox command from head */
5266 lpfc_worker_wake_up(phba);
5271 return MBX_NOT_FINISHED;
5275 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5276 * @phba: Pointer to HBA context object.
5278 * This function is called by worker thread to send a mailbox command to
5279 * SLI4 HBA firmware.
5283 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5285 struct lpfc_sli *psli = &phba->sli;
5286 LPFC_MBOXQ_t *mboxq;
5287 int rc = MBX_SUCCESS;
5288 unsigned long iflags;
5289 struct lpfc_mqe *mqe;
5292 /* Check interrupt mode before post async mailbox command */
5293 if (unlikely(!phba->sli4_hba.intr_enable))
5294 return MBX_NOT_FINISHED;
5296 /* Check for mailbox command service token */
5297 spin_lock_irqsave(&phba->hbalock, iflags);
5298 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5299 spin_unlock_irqrestore(&phba->hbalock, iflags);
5300 return MBX_NOT_FINISHED;
5302 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5303 spin_unlock_irqrestore(&phba->hbalock, iflags);
5304 return MBX_NOT_FINISHED;
5306 if (unlikely(phba->sli.mbox_active)) {
5307 spin_unlock_irqrestore(&phba->hbalock, iflags);
5308 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5309 "0384 There is pending active mailbox cmd\n");
5310 return MBX_NOT_FINISHED;
5312 /* Take the mailbox command service token */
5313 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5315 /* Get the next mailbox command from head of queue */
5316 mboxq = lpfc_mbox_get(phba);
5318 /* If no more mailbox command waiting for post, we're done */
5320 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5321 spin_unlock_irqrestore(&phba->hbalock, iflags);
5324 phba->sli.mbox_active = mboxq;
5325 spin_unlock_irqrestore(&phba->hbalock, iflags);
5327 /* Check device readiness for posting mailbox command */
5328 rc = lpfc_mbox_dev_check(phba);
5330 /* Driver clean routine will clean up pending mailbox */
5331 goto out_not_finished;
5333 /* Prepare the mbox command to be posted */
5334 mqe = &mboxq->u.mqe;
5335 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5337 /* Start timer for the mbox_tmo and log some mailbox post messages */
5338 mod_timer(&psli->mbox_tmo, (jiffies +
5339 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5341 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5342 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5344 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5345 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5346 phba->pport->port_state, psli->sli_flag);
5348 if (mbx_cmnd != MBX_HEARTBEAT) {
5350 lpfc_debugfs_disc_trc(mboxq->vport,
5351 LPFC_DISC_TRC_MBOX_VPORT,
5352 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5353 mbx_cmnd, mqe->un.mb_words[0],
5354 mqe->un.mb_words[1]);
5356 lpfc_debugfs_disc_trc(phba->pport,
5358 "MBOX Send: cmd:x%x mb:x%x x%x",
5359 mbx_cmnd, mqe->un.mb_words[0],
5360 mqe->un.mb_words[1]);
5363 psli->slistat.mbox_cmd++;
5365 /* Post the mailbox command to the port */
5366 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5367 if (rc != MBX_SUCCESS) {
5368 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5369 "(%d):2533 Mailbox command x%x (x%x) "
5370 "cannot issue Data: x%x x%x\n",
5371 mboxq->vport ? mboxq->vport->vpi : 0,
5372 mboxq->u.mb.mbxCommand,
5373 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5374 psli->sli_flag, MBX_NOWAIT);
5375 goto out_not_finished;
5381 spin_lock_irqsave(&phba->hbalock, iflags);
5382 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5383 __lpfc_mbox_cmpl_put(phba, mboxq);
5384 /* Release the token */
5385 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5386 phba->sli.mbox_active = NULL;
5387 spin_unlock_irqrestore(&phba->hbalock, iflags);
5389 return MBX_NOT_FINISHED;
5393 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5394 * @phba: Pointer to HBA context object.
5395 * @pmbox: Pointer to mailbox object.
5396 * @flag: Flag indicating how the mailbox need to be processed.
5398 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5399 * the API jump table function pointer from the lpfc_hba struct.
5401 * Return codes the caller owns the mailbox command after the return of the
5405 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5407 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5411 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5412 * @phba: The hba struct for which this call is being executed.
5413 * @dev_grp: The HBA PCI-Device group number.
5415 * This routine sets up the mbox interface API function jump table in @phba
5417 * Returns: 0 - success, -ENODEV - failure.
5420 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5424 case LPFC_PCI_DEV_LP:
5425 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
5426 phba->lpfc_sli_handle_slow_ring_event =
5427 lpfc_sli_handle_slow_ring_event_s3;
5428 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
5429 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
5430 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
5432 case LPFC_PCI_DEV_OC:
5433 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
5434 phba->lpfc_sli_handle_slow_ring_event =
5435 lpfc_sli_handle_slow_ring_event_s4;
5436 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
5437 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
5438 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
5441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5442 "1420 Invalid HBA PCI-device group: 0x%x\n",
5451 * __lpfc_sli_ringtx_put - Add an iocb to the txq
5452 * @phba: Pointer to HBA context object.
5453 * @pring: Pointer to driver SLI ring object.
5454 * @piocb: Pointer to address of newly added command iocb.
5456 * This function is called with hbalock held to add a command
5457 * iocb to the txq when SLI layer cannot submit the command iocb
5461 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5462 struct lpfc_iocbq *piocb)
5464 /* Insert the caller's iocb in the txq tail for later processing. */
5465 list_add_tail(&piocb->list, &pring->txq);
5470 * lpfc_sli_next_iocb - Get the next iocb in the txq
5471 * @phba: Pointer to HBA context object.
5472 * @pring: Pointer to driver SLI ring object.
5473 * @piocb: Pointer to address of newly added command iocb.
5475 * This function is called with hbalock held before a new
5476 * iocb is submitted to the firmware. This function checks
5477 * txq to flush the iocbs in txq to Firmware before
5478 * submitting new iocbs to the Firmware.
5479 * If there are iocbs in the txq which need to be submitted
5480 * to firmware, lpfc_sli_next_iocb returns the first element
5481 * of the txq after dequeuing it from txq.
5482 * If there is no iocb in the txq then the function will return
5483 * *piocb and *piocb is set to NULL. Caller needs to check
5484 * *piocb to find if there are more commands in the txq.
5486 static struct lpfc_iocbq *
5487 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5488 struct lpfc_iocbq **piocb)
5490 struct lpfc_iocbq * nextiocb;
5492 nextiocb = lpfc_sli_ringtx_get(phba, pring);
5502 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
5503 * @phba: Pointer to HBA context object.
5504 * @ring_number: SLI ring number to issue iocb on.
5505 * @piocb: Pointer to command iocb.
5506 * @flag: Flag indicating if this command can be put into txq.
5508 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5509 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5510 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5511 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5512 * this function allows only iocbs for posting buffers. This function finds
5513 * next available slot in the command ring and posts the command to the
5514 * available slot and writes the port attention register to request HBA start
5515 * processing new iocb. If there is no slot available in the ring and
5516 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5517 * the function returns IOCB_BUSY.
5519 * This function is called with hbalock held. The function will return success
5520 * after it successfully submit the iocb to firmware or after adding to the
5524 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
5525 struct lpfc_iocbq *piocb, uint32_t flag)
5527 struct lpfc_iocbq *nextiocb;
5529 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
5531 if (piocb->iocb_cmpl && (!piocb->vport) &&
5532 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
5533 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
5534 lpfc_printf_log(phba, KERN_ERR,
5535 LOG_SLI | LOG_VPORT,
5536 "1807 IOCB x%x failed. No vport\n",
5537 piocb->iocb.ulpCommand);
5543 /* If the PCI channel is in offline state, do not post iocbs. */
5544 if (unlikely(pci_channel_offline(phba->pcidev)))
5547 /* If HBA has a deferred error attention, fail the iocb. */
5548 if (unlikely(phba->hba_flag & DEFER_ERATT))
5552 * We should never get an IOCB if we are in a < LINK_DOWN state
5554 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
5558 * Check to see if we are blocking IOCB processing because of a
5559 * outstanding event.
5561 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
5564 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
5566 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
5567 * can be issued if the link is not up.
5569 switch (piocb->iocb.ulpCommand) {
5570 case CMD_GEN_REQUEST64_CR:
5571 case CMD_GEN_REQUEST64_CX:
5572 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
5573 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
5574 FC_RCTL_DD_UNSOL_CMD) ||
5575 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
5576 MENLO_TRANSPORT_TYPE))
5580 case CMD_QUE_RING_BUF_CN:
5581 case CMD_QUE_RING_BUF64_CN:
5583 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5584 * completion, iocb_cmpl MUST be 0.
5586 if (piocb->iocb_cmpl)
5587 piocb->iocb_cmpl = NULL;
5589 case CMD_CREATE_XRI_CR:
5590 case CMD_CLOSE_XRI_CN:
5591 case CMD_CLOSE_XRI_CX:
5598 * For FCP commands, we must be in a state where we can process link
5601 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
5602 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
5606 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
5607 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
5608 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
5611 lpfc_sli_update_ring(phba, pring);
5613 lpfc_sli_update_full_ring(phba, pring);
5616 return IOCB_SUCCESS;
5621 pring->stats.iocb_cmd_delay++;
5625 if (!(flag & SLI_IOCB_RET_IOCB)) {
5626 __lpfc_sli_ringtx_put(phba, pring, piocb);
5627 return IOCB_SUCCESS;
5634 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5635 * @phba: Pointer to HBA context object.
5636 * @piocb: Pointer to command iocb.
5637 * @sglq: Pointer to the scatter gather queue object.
5639 * This routine converts the bpl or bde that is in the IOCB
5640 * to a sgl list for the sli4 hardware. The physical address
5641 * of the bpl/bde is converted back to a virtual address.
5642 * If the IOCB contains a BPL then the list of BDE's is
5643 * converted to sli4_sge's. If the IOCB contains a single
5644 * BDE then it is converted to a single sli_sge.
5645 * The IOCB is still in cpu endianess so the contents of
5646 * the bpl can be used without byte swapping.
5648 * Returns valid XRI = Success, NO_XRI = Failure.
5651 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
5652 struct lpfc_sglq *sglq)
5654 uint16_t xritag = NO_XRI;
5655 struct ulp_bde64 *bpl = NULL;
5656 struct ulp_bde64 bde;
5657 struct sli4_sge *sgl = NULL;
5662 if (!piocbq || !sglq)
5665 sgl = (struct sli4_sge *)sglq->sgl;
5666 icmd = &piocbq->iocb;
5667 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5668 numBdes = icmd->un.genreq64.bdl.bdeSize /
5669 sizeof(struct ulp_bde64);
5670 /* The addrHigh and addrLow fields within the IOCB
5671 * have not been byteswapped yet so there is no
5672 * need to swap them back.
5674 bpl = (struct ulp_bde64 *)
5675 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
5680 for (i = 0; i < numBdes; i++) {
5681 /* Should already be byte swapped. */
5682 sgl->addr_hi = bpl->addrHigh;
5683 sgl->addr_lo = bpl->addrLow;
5684 /* swap the size field back to the cpu so we
5685 * can assign it to the sgl.
5687 bde.tus.w = le32_to_cpu(bpl->tus.w);
5688 bf_set(lpfc_sli4_sge_len, sgl, bde.tus.f.bdeSize);
5689 if ((i+1) == numBdes)
5690 bf_set(lpfc_sli4_sge_last, sgl, 1);
5692 bf_set(lpfc_sli4_sge_last, sgl, 0);
5693 sgl->word2 = cpu_to_le32(sgl->word2);
5694 sgl->word3 = cpu_to_le32(sgl->word3);
5698 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
5699 /* The addrHigh and addrLow fields of the BDE have not
5700 * been byteswapped yet so they need to be swapped
5701 * before putting them in the sgl.
5704 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
5706 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
5707 bf_set(lpfc_sli4_sge_len, sgl,
5708 icmd->un.genreq64.bdl.bdeSize);
5709 bf_set(lpfc_sli4_sge_last, sgl, 1);
5710 sgl->word2 = cpu_to_le32(sgl->word2);
5711 sgl->word3 = cpu_to_le32(sgl->word3);
5713 return sglq->sli4_xritag;
5717 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5718 * @phba: Pointer to HBA context object.
5720 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
5721 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5724 * Return: index into SLI4 fast-path FCP queue index.
5727 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
5730 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
5733 return phba->fcp_qidx;
5737 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5738 * @phba: Pointer to HBA context object.
5739 * @piocb: Pointer to command iocb.
5740 * @wqe: Pointer to the work queue entry.
5742 * This routine converts the iocb command to its Work Queue Entry
5743 * equivalent. The wqe pointer should not have any fields set when
5744 * this routine is called because it will memcpy over them.
5745 * This routine does not set the CQ_ID or the WQEC bits in the
5748 * Returns: 0 = Success, IOCB_ERROR = Failure.
5751 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
5752 union lpfc_wqe *wqe)
5754 uint32_t xmit_len = 0, total_len = 0;
5758 uint8_t command_type = ELS_COMMAND_NON_FIP;
5761 struct ulp_bde64 *bpl = NULL;
5762 uint32_t els_id = ELS_ID_DEFAULT;
5764 struct ulp_bde64 bde;
5766 fip = phba->hba_flag & HBA_FIP_SUPPORT;
5767 /* The fcp commands will set command type */
5768 if (iocbq->iocb_flag & LPFC_IO_FCP)
5769 command_type = FCP_COMMAND;
5770 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
5771 command_type = ELS_COMMAND_FIP;
5773 command_type = ELS_COMMAND_NON_FIP;
5775 /* Some of the fields are in the right position already */
5776 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
5777 abort_tag = (uint32_t) iocbq->iotag;
5778 xritag = iocbq->sli4_xritag;
5779 wqe->words[7] = 0; /* The ct field has moved so reset */
5780 /* words0-2 bpl convert bde */
5781 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5782 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
5783 sizeof(struct ulp_bde64);
5784 bpl = (struct ulp_bde64 *)
5785 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
5789 /* Should already be byte swapped. */
5790 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
5791 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
5792 /* swap the size field back to the cpu so we
5793 * can assign it to the sgl.
5795 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
5796 xmit_len = wqe->generic.bde.tus.f.bdeSize;
5798 for (i = 0; i < numBdes; i++) {
5799 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
5800 total_len += bde.tus.f.bdeSize;
5803 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
5805 iocbq->iocb.ulpIoTag = iocbq->iotag;
5806 cmnd = iocbq->iocb.ulpCommand;
5808 switch (iocbq->iocb.ulpCommand) {
5809 case CMD_ELS_REQUEST64_CR:
5810 if (!iocbq->iocb.ulpLe) {
5811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5812 "2007 Only Limited Edition cmd Format"
5813 " supported 0x%x\n",
5814 iocbq->iocb.ulpCommand);
5817 wqe->els_req.payload_len = xmit_len;
5818 /* Els_reguest64 has a TMO */
5819 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
5820 iocbq->iocb.ulpTimeout);
5821 /* Need a VF for word 4 set the vf bit*/
5822 bf_set(els_req64_vf, &wqe->els_req, 0);
5823 /* And a VFID for word 12 */
5824 bf_set(els_req64_vfid, &wqe->els_req, 0);
5826 * Set ct field to 3, indicates that the context_tag field
5827 * contains the FCFI and remote N_Port_ID is
5831 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5832 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5833 iocbq->iocb.ulpContext);
5835 bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
5836 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5837 /* CCP CCPE PV PRI in word10 were set in the memcpy */
5839 if (command_type == ELS_COMMAND_FIP) {
5840 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
5841 >> LPFC_FIP_ELS_ID_SHIFT);
5843 bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id);
5846 case CMD_XMIT_SEQUENCE64_CX:
5847 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5848 iocbq->iocb.un.ulpWord[3]);
5849 wqe->generic.word3 = 0;
5850 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
5851 /* The entire sequence is transmitted for this IOCB */
5852 xmit_len = total_len;
5853 cmnd = CMD_XMIT_SEQUENCE64_CR;
5854 case CMD_XMIT_SEQUENCE64_CR:
5855 /* word3 iocb=io_tag32 wqe=payload_offset */
5856 /* payload offset used for multilpe outstanding
5857 * sequences on the same exchange
5860 /* word4 relative_offset memcpy */
5861 /* word5 r_ctl/df_ctl memcpy */
5862 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5863 wqe->xmit_sequence.xmit_len = xmit_len;
5864 command_type = OTHER_COMMAND;
5866 case CMD_XMIT_BCAST64_CN:
5867 /* word3 iocb=iotag32 wqe=payload_len */
5868 wqe->words[3] = 0; /* no definition for this in wqe */
5869 /* word4 iocb=rsvd wqe=rsvd */
5870 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
5871 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
5872 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
5873 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
5875 case CMD_FCP_IWRITE64_CR:
5876 command_type = FCP_COMMAND_DATA_OUT;
5877 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
5879 * word3 is payload_len: byte offset to the sgl entry for the
5881 * word4 is total xfer len, same as the IOCB->ulpParameter.
5882 * word5 is initial xfer len 0 = wait for xfer-ready
5885 /* Always wait for xfer-ready before sending data */
5886 wqe->fcp_iwrite.initial_xfer_len = 0;
5887 /* word 4 (xfer length) should have been set on the memcpy */
5889 /* allow write to fall through to read */
5890 case CMD_FCP_IREAD64_CR:
5891 /* FCP_CMD is always the 1st sgl entry */
5892 wqe->fcp_iread.payload_len =
5893 xmit_len + sizeof(struct fcp_rsp);
5895 /* word 4 (xfer length) should have been set on the memcpy */
5897 bf_set(lpfc_wqe_gen_erp, &wqe->generic,
5898 iocbq->iocb.ulpFCP2Rcvy);
5899 bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
5900 /* The XC bit and the XS bit are similar. The driver never
5901 * tracked whether or not the exchange was previouslly open.
5902 * XC = Exchange create, 0 is create. 1 is already open.
5903 * XS = link cmd: 1 do not close the exchange after command.
5904 * XS = 0 close exchange when command completes.
5905 * The only time we would not set the XC bit is when the XS bit
5906 * is set and we are sending our 2nd or greater command on
5909 /* Always open the exchange */
5910 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5912 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5913 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
5915 case CMD_FCP_ICMND64_CR:
5916 /* Always open the exchange */
5917 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5920 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5921 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5923 case CMD_GEN_REQUEST64_CR:
5924 /* word3 command length is described as byte offset to the
5925 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
5930 wqe->gen_req.command_len = xmit_len;
5931 /* Word4 parameter copied in the memcpy */
5932 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
5933 /* word6 context tag copied in memcpy */
5934 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
5935 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5936 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5937 "2015 Invalid CT %x command 0x%x\n",
5938 ct, iocbq->iocb.ulpCommand);
5941 bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
5942 bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
5943 iocbq->iocb.ulpTimeout);
5945 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
5946 command_type = OTHER_COMMAND;
5948 case CMD_XMIT_ELS_RSP64_CX:
5949 /* words0-2 BDE memcpy */
5950 /* word3 iocb=iotag32 wqe=rsvd */
5952 /* word4 iocb=did wge=rsvd. */
5954 /* word5 iocb=rsvd wge=did */
5955 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
5956 iocbq->iocb.un.elsreq64.remoteID);
5958 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
5959 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
5961 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
5962 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
5963 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
5964 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5965 iocbq->vport->vpi + phba->vpi_base);
5966 command_type = OTHER_COMMAND;
5968 case CMD_CLOSE_XRI_CN:
5969 case CMD_ABORT_XRI_CN:
5970 case CMD_ABORT_XRI_CX:
5971 /* words 0-2 memcpy should be 0 rserved */
5972 /* port will send abts */
5973 if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
5975 * The link is down so the fw does not need to send abts
5978 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
5980 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
5981 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
5982 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
5984 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
5985 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
5986 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
5987 wqe->generic.abort_tag = abort_tag;
5989 * The abort handler will send us CMD_ABORT_XRI_CN or
5990 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
5992 bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
5993 cmnd = CMD_ABORT_XRI_CX;
5994 command_type = OTHER_COMMAND;
5997 case CMD_XMIT_BLS_RSP64_CX:
5998 /* As BLS ABTS-ACC WQE is very different from other WQEs,
5999 * we re-construct this WQE here based on information in
6000 * iocbq from scratch.
6002 memset(wqe, 0, sizeof(union lpfc_wqe));
6003 /* OX_ID is invariable to who sent ABTS to CT exchange */
6004 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
6005 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
6006 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
6007 LPFC_ABTS_UNSOL_INT) {
6008 /* ABTS sent by initiator to CT exchange, the
6009 * RX_ID field will be filled with the newly
6010 * allocated responder XRI.
6012 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6013 iocbq->sli4_xritag);
6015 /* ABTS sent by responder to CT exchange, the
6016 * RX_ID field will be filled with the responder
6019 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6020 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
6022 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
6023 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
6024 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
6025 iocbq->iocb.ulpContext);
6026 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6027 command_type = OTHER_COMMAND;
6029 case CMD_XRI_ABORTED_CX:
6030 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
6031 /* words0-2 are all 0's no bde */
6032 /* word3 and word4 are rsvrd */
6035 /* word5 iocb=rsvd wge=did */
6036 /* There is no remote port id in the IOCB? */
6037 /* Let this fall through and fail */
6038 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6039 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6040 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6041 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6043 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6044 "2014 Invalid command 0x%x\n",
6045 iocbq->iocb.ulpCommand);
6050 bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
6051 bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
6052 wqe->generic.abort_tag = abort_tag;
6053 bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
6054 bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
6055 bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
6056 bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
6062 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6063 * @phba: Pointer to HBA context object.
6064 * @ring_number: SLI ring number to issue iocb on.
6065 * @piocb: Pointer to command iocb.
6066 * @flag: Flag indicating if this command can be put into txq.
6068 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6069 * an iocb command to an HBA with SLI-4 interface spec.
6071 * This function is called with hbalock held. The function will return success
6072 * after it successfully submit the iocb to firmware or after adding to the
6076 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6077 struct lpfc_iocbq *piocb, uint32_t flag)
6079 struct lpfc_sglq *sglq;
6082 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
6084 if (piocb->sli4_xritag == NO_XRI) {
6085 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6086 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6089 sglq = __lpfc_sli_get_sglq(phba);
6092 piocb->sli4_xritag = sglq->sli4_xritag;
6094 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6095 sglq = NULL; /* These IO's already have an XRI and
6099 /* This is a continuation of a commandi,(CX) so this
6100 * sglq is on the active list
6102 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6108 xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq);
6109 if (xritag != sglq->sli4_xritag)
6113 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6116 if (piocb->iocb_flag & LPFC_IO_FCP) {
6118 * For FCP command IOCB, get a new WQ index to distribute
6119 * WQE across the WQsr. On the other hand, for abort IOCB,
6120 * it carries the same WQ index to the original command
6123 if ((piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
6124 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN))
6125 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
6126 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
6130 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6133 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6139 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6141 * This routine wraps the actual lockless version for issusing IOCB function
6142 * pointer from the lpfc_hba struct.
6145 * IOCB_ERROR - Error
6146 * IOCB_SUCCESS - Success
6150 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6151 struct lpfc_iocbq *piocb, uint32_t flag)
6153 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6157 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6158 * @phba: The hba struct for which this call is being executed.
6159 * @dev_grp: The HBA PCI-Device group number.
6161 * This routine sets up the SLI interface API function jump table in @phba
6163 * Returns: 0 - success, -ENODEV - failure.
6166 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6170 case LPFC_PCI_DEV_LP:
6171 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6172 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6174 case LPFC_PCI_DEV_OC:
6175 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6176 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6180 "1419 Invalid HBA PCI-device group: 0x%x\n",
6185 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6190 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6191 * @phba: Pointer to HBA context object.
6192 * @pring: Pointer to driver SLI ring object.
6193 * @piocb: Pointer to command iocb.
6194 * @flag: Flag indicating if this command can be put into txq.
6196 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6197 * function. This function gets the hbalock and calls
6198 * __lpfc_sli_issue_iocb function and will return the error returned
6199 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6200 * functions which do not hold hbalock.
6203 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6204 struct lpfc_iocbq *piocb, uint32_t flag)
6206 unsigned long iflags;
6209 spin_lock_irqsave(&phba->hbalock, iflags);
6210 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6211 spin_unlock_irqrestore(&phba->hbalock, iflags);
6217 * lpfc_extra_ring_setup - Extra ring setup function
6218 * @phba: Pointer to HBA context object.
6220 * This function is called while driver attaches with the
6221 * HBA to setup the extra ring. The extra ring is used
6222 * only when driver needs to support target mode functionality
6223 * or IP over FC functionalities.
6225 * This function is called with no lock held.
6228 lpfc_extra_ring_setup( struct lpfc_hba *phba)
6230 struct lpfc_sli *psli;
6231 struct lpfc_sli_ring *pring;
6235 /* Adjust cmd/rsp ring iocb entries more evenly */
6237 /* Take some away from the FCP ring */
6238 pring = &psli->ring[psli->fcp_ring];
6239 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6240 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6241 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6242 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6244 /* and give them to the extra ring */
6245 pring = &psli->ring[psli->extra_ring];
6247 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6248 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6249 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6250 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6252 /* Setup default profile for this ring */
6253 pring->iotag_max = 4096;
6254 pring->num_mask = 1;
6255 pring->prt[0].profile = 0; /* Mask 0 */
6256 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6257 pring->prt[0].type = phba->cfg_multi_ring_type;
6258 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6263 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6264 * @phba: Pointer to HBA context object.
6265 * @pring: Pointer to driver SLI ring object.
6266 * @iocbq: Pointer to iocb object.
6268 * This function is called by the slow ring event handler
6269 * function when there is an ASYNC event iocb in the ring.
6270 * This function is called with no lock held.
6271 * Currently this function handles only temperature related
6272 * ASYNC events. The function decodes the temperature sensor
6273 * event message and posts events for the management applications.
6276 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6277 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6282 struct temp_event temp_event_data;
6283 struct Scsi_Host *shost;
6286 icmd = &iocbq->iocb;
6287 evt_code = icmd->un.asyncstat.evt_code;
6288 temp = icmd->ulpContext;
6290 if ((evt_code != ASYNC_TEMP_WARN) &&
6291 (evt_code != ASYNC_TEMP_SAFE)) {
6292 iocb_w = (uint32_t *) icmd;
6293 lpfc_printf_log(phba,
6296 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6298 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6299 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6300 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6301 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6303 icmd->un.asyncstat.evt_code,
6304 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6305 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6306 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6307 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6311 temp_event_data.data = (uint32_t)temp;
6312 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6313 if (evt_code == ASYNC_TEMP_WARN) {
6314 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6315 lpfc_printf_log(phba,
6318 "0347 Adapter is very hot, please take "
6319 "corrective action. temperature : %d Celsius\n",
6322 if (evt_code == ASYNC_TEMP_SAFE) {
6323 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6324 lpfc_printf_log(phba,
6327 "0340 Adapter temperature is OK now. "
6328 "temperature : %d Celsius\n",
6332 /* Send temperature change event to applications */
6333 shost = lpfc_shost_from_vport(phba->pport);
6334 fc_host_post_vendor_event(shost, fc_get_event_number(),
6335 sizeof(temp_event_data), (char *) &temp_event_data,
6342 * lpfc_sli_setup - SLI ring setup function
6343 * @phba: Pointer to HBA context object.
6345 * lpfc_sli_setup sets up rings of the SLI interface with
6346 * number of iocbs per ring and iotags. This function is
6347 * called while driver attach to the HBA and before the
6348 * interrupts are enabled. So there is no need for locking.
6350 * This function always returns 0.
6353 lpfc_sli_setup(struct lpfc_hba *phba)
6355 int i, totiocbsize = 0;
6356 struct lpfc_sli *psli = &phba->sli;
6357 struct lpfc_sli_ring *pring;
6359 psli->num_rings = MAX_CONFIGURED_RINGS;
6361 psli->fcp_ring = LPFC_FCP_RING;
6362 psli->next_ring = LPFC_FCP_NEXT_RING;
6363 psli->extra_ring = LPFC_EXTRA_RING;
6365 psli->iocbq_lookup = NULL;
6366 psli->iocbq_lookup_len = 0;
6367 psli->last_iotag = 0;
6369 for (i = 0; i < psli->num_rings; i++) {
6370 pring = &psli->ring[i];
6372 case LPFC_FCP_RING: /* ring 0 - FCP */
6373 /* numCiocb and numRiocb are used in config_port */
6374 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
6375 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
6376 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6377 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6378 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6379 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6380 pring->sizeCiocb = (phba->sli_rev == 3) ?
6381 SLI3_IOCB_CMD_SIZE :
6383 pring->sizeRiocb = (phba->sli_rev == 3) ?
6384 SLI3_IOCB_RSP_SIZE :
6386 pring->iotag_ctr = 0;
6388 (phba->cfg_hba_queue_depth * 2);
6389 pring->fast_iotag = pring->iotag_max;
6390 pring->num_mask = 0;
6392 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
6393 /* numCiocb and numRiocb are used in config_port */
6394 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
6395 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
6396 pring->sizeCiocb = (phba->sli_rev == 3) ?
6397 SLI3_IOCB_CMD_SIZE :
6399 pring->sizeRiocb = (phba->sli_rev == 3) ?
6400 SLI3_IOCB_RSP_SIZE :
6402 pring->iotag_max = phba->cfg_hba_queue_depth;
6403 pring->num_mask = 0;
6405 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
6406 /* numCiocb and numRiocb are used in config_port */
6407 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
6408 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
6409 pring->sizeCiocb = (phba->sli_rev == 3) ?
6410 SLI3_IOCB_CMD_SIZE :
6412 pring->sizeRiocb = (phba->sli_rev == 3) ?
6413 SLI3_IOCB_RSP_SIZE :
6415 pring->fast_iotag = 0;
6416 pring->iotag_ctr = 0;
6417 pring->iotag_max = 4096;
6418 pring->lpfc_sli_rcv_async_status =
6419 lpfc_sli_async_event_handler;
6420 pring->num_mask = LPFC_MAX_RING_MASK;
6421 pring->prt[0].profile = 0; /* Mask 0 */
6422 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
6423 pring->prt[0].type = FC_TYPE_ELS;
6424 pring->prt[0].lpfc_sli_rcv_unsol_event =
6425 lpfc_els_unsol_event;
6426 pring->prt[1].profile = 0; /* Mask 1 */
6427 pring->prt[1].rctl = FC_RCTL_ELS_REP;
6428 pring->prt[1].type = FC_TYPE_ELS;
6429 pring->prt[1].lpfc_sli_rcv_unsol_event =
6430 lpfc_els_unsol_event;
6431 pring->prt[2].profile = 0; /* Mask 2 */
6432 /* NameServer Inquiry */
6433 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
6435 pring->prt[2].type = FC_TYPE_CT;
6436 pring->prt[2].lpfc_sli_rcv_unsol_event =
6437 lpfc_ct_unsol_event;
6438 pring->prt[3].profile = 0; /* Mask 3 */
6439 /* NameServer response */
6440 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
6442 pring->prt[3].type = FC_TYPE_CT;
6443 pring->prt[3].lpfc_sli_rcv_unsol_event =
6444 lpfc_ct_unsol_event;
6445 /* abort unsolicited sequence */
6446 pring->prt[4].profile = 0; /* Mask 4 */
6447 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
6448 pring->prt[4].type = FC_TYPE_BLS;
6449 pring->prt[4].lpfc_sli_rcv_unsol_event =
6450 lpfc_sli4_ct_abort_unsol_event;
6453 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
6454 (pring->numRiocb * pring->sizeRiocb);
6456 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
6457 /* Too many cmd / rsp ring entries in SLI2 SLIM */
6458 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
6459 "SLI2 SLIM Data: x%x x%lx\n",
6460 phba->brd_no, totiocbsize,
6461 (unsigned long) MAX_SLIM_IOCB_SIZE);
6463 if (phba->cfg_multi_ring_support == 2)
6464 lpfc_extra_ring_setup(phba);
6470 * lpfc_sli_queue_setup - Queue initialization function
6471 * @phba: Pointer to HBA context object.
6473 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6474 * ring. This function also initializes ring indices of each ring.
6475 * This function is called during the initialization of the SLI
6476 * interface of an HBA.
6477 * This function is called with no lock held and always returns
6481 lpfc_sli_queue_setup(struct lpfc_hba *phba)
6483 struct lpfc_sli *psli;
6484 struct lpfc_sli_ring *pring;
6488 spin_lock_irq(&phba->hbalock);
6489 INIT_LIST_HEAD(&psli->mboxq);
6490 INIT_LIST_HEAD(&psli->mboxq_cmpl);
6491 /* Initialize list headers for txq and txcmplq as double linked lists */
6492 for (i = 0; i < psli->num_rings; i++) {
6493 pring = &psli->ring[i];
6495 pring->next_cmdidx = 0;
6496 pring->local_getidx = 0;
6498 INIT_LIST_HEAD(&pring->txq);
6499 INIT_LIST_HEAD(&pring->txcmplq);
6500 INIT_LIST_HEAD(&pring->iocb_continueq);
6501 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
6502 INIT_LIST_HEAD(&pring->postbufq);
6504 spin_unlock_irq(&phba->hbalock);
6509 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6510 * @phba: Pointer to HBA context object.
6512 * This routine flushes the mailbox command subsystem. It will unconditionally
6513 * flush all the mailbox commands in the three possible stages in the mailbox
6514 * command sub-system: pending mailbox command queue; the outstanding mailbox
6515 * command; and completed mailbox command queue. It is caller's responsibility
6516 * to make sure that the driver is in the proper state to flush the mailbox
6517 * command sub-system. Namely, the posting of mailbox commands into the
6518 * pending mailbox command queue from the various clients must be stopped;
6519 * either the HBA is in a state that it will never works on the outstanding
6520 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6521 * mailbox command has been completed.
6524 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
6526 LIST_HEAD(completions);
6527 struct lpfc_sli *psli = &phba->sli;
6529 unsigned long iflag;
6531 /* Flush all the mailbox commands in the mbox system */
6532 spin_lock_irqsave(&phba->hbalock, iflag);
6533 /* The pending mailbox command queue */
6534 list_splice_init(&phba->sli.mboxq, &completions);
6535 /* The outstanding active mailbox command */
6536 if (psli->mbox_active) {
6537 list_add_tail(&psli->mbox_active->list, &completions);
6538 psli->mbox_active = NULL;
6539 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6541 /* The completed mailbox command queue */
6542 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
6543 spin_unlock_irqrestore(&phba->hbalock, iflag);
6545 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6546 while (!list_empty(&completions)) {
6547 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
6548 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
6550 pmb->mbox_cmpl(phba, pmb);
6555 * lpfc_sli_host_down - Vport cleanup function
6556 * @vport: Pointer to virtual port object.
6558 * lpfc_sli_host_down is called to clean up the resources
6559 * associated with a vport before destroying virtual
6560 * port data structures.
6561 * This function does following operations:
6562 * - Free discovery resources associated with this virtual
6564 * - Free iocbs associated with this virtual port in
6566 * - Send abort for all iocb commands associated with this
6569 * This function is called with no lock held and always returns 1.
6572 lpfc_sli_host_down(struct lpfc_vport *vport)
6574 LIST_HEAD(completions);
6575 struct lpfc_hba *phba = vport->phba;
6576 struct lpfc_sli *psli = &phba->sli;
6577 struct lpfc_sli_ring *pring;
6578 struct lpfc_iocbq *iocb, *next_iocb;
6580 unsigned long flags = 0;
6581 uint16_t prev_pring_flag;
6583 lpfc_cleanup_discovery_resources(vport);
6585 spin_lock_irqsave(&phba->hbalock, flags);
6586 for (i = 0; i < psli->num_rings; i++) {
6587 pring = &psli->ring[i];
6588 prev_pring_flag = pring->flag;
6589 /* Only slow rings */
6590 if (pring->ringno == LPFC_ELS_RING) {
6591 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6592 /* Set the lpfc data pending flag */
6593 set_bit(LPFC_DATA_READY, &phba->data_flags);
6596 * Error everything on the txq since these iocbs have not been
6597 * given to the FW yet.
6599 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6600 if (iocb->vport != vport)
6602 list_move_tail(&iocb->list, &completions);
6606 /* Next issue ABTS for everything on the txcmplq */
6607 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
6609 if (iocb->vport != vport)
6611 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
6614 pring->flag = prev_pring_flag;
6617 spin_unlock_irqrestore(&phba->hbalock, flags);
6619 /* Cancel all the IOCBs from the completions list */
6620 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6626 * lpfc_sli_hba_down - Resource cleanup function for the HBA
6627 * @phba: Pointer to HBA context object.
6629 * This function cleans up all iocb, buffers, mailbox commands
6630 * while shutting down the HBA. This function is called with no
6631 * lock held and always returns 1.
6632 * This function does the following to cleanup driver resources:
6633 * - Free discovery resources for each virtual port
6634 * - Cleanup any pending fabric iocbs
6635 * - Iterate through the iocb txq and free each entry
6637 * - Free up any buffer posted to the HBA
6638 * - Free mailbox commands in the mailbox queue.
6641 lpfc_sli_hba_down(struct lpfc_hba *phba)
6643 LIST_HEAD(completions);
6644 struct lpfc_sli *psli = &phba->sli;
6645 struct lpfc_sli_ring *pring;
6646 struct lpfc_dmabuf *buf_ptr;
6647 unsigned long flags = 0;
6650 /* Shutdown the mailbox command sub-system */
6651 lpfc_sli_mbox_sys_shutdown(phba);
6653 lpfc_hba_down_prep(phba);
6655 lpfc_fabric_abort_hba(phba);
6657 spin_lock_irqsave(&phba->hbalock, flags);
6658 for (i = 0; i < psli->num_rings; i++) {
6659 pring = &psli->ring[i];
6660 /* Only slow rings */
6661 if (pring->ringno == LPFC_ELS_RING) {
6662 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6663 /* Set the lpfc data pending flag */
6664 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_splice_init(&pring->txq, &completions);
6675 spin_unlock_irqrestore(&phba->hbalock, flags);
6677 /* Cancel all the IOCBs from the completions list */
6678 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6681 spin_lock_irqsave(&phba->hbalock, flags);
6682 list_splice_init(&phba->elsbuf, &completions);
6683 phba->elsbuf_cnt = 0;
6684 phba->elsbuf_prev_cnt = 0;
6685 spin_unlock_irqrestore(&phba->hbalock, flags);
6687 while (!list_empty(&completions)) {
6688 list_remove_head(&completions, buf_ptr,
6689 struct lpfc_dmabuf, list);
6690 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
6694 /* Return any active mbox cmds */
6695 del_timer_sync(&psli->mbox_tmo);
6697 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
6698 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6699 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
6705 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6706 * @phba: Pointer to HBA context object.
6708 * This function cleans up all queues, iocb, buffers, mailbox commands while
6709 * shutting down the SLI4 HBA FCoE function. This function is called with no
6710 * lock held and always returns 1.
6712 * This function does the following to cleanup driver FCoE function resources:
6713 * - Free discovery resources for each virtual port
6714 * - Cleanup any pending fabric iocbs
6715 * - Iterate through the iocb txq and free each entry in the list.
6716 * - Free up any buffer posted to the HBA.
6717 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6718 * - Free mailbox commands in the mailbox queue.
6721 lpfc_sli4_hba_down(struct lpfc_hba *phba)
6723 /* Stop the SLI4 device port */
6724 lpfc_stop_port(phba);
6726 /* Tear down the queues in the HBA */
6727 lpfc_sli4_queue_unset(phba);
6729 /* unregister default FCFI from the HBA */
6730 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
6736 * lpfc_sli_pcimem_bcopy - SLI memory copy function
6737 * @srcp: Source memory pointer.
6738 * @destp: Destination memory pointer.
6739 * @cnt: Number of words required to be copied.
6741 * This function is used for copying data between driver memory
6742 * and the SLI memory. This function also changes the endianness
6743 * of each word if native endianness is different from SLI
6744 * endianness. This function can be called with or without
6748 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
6750 uint32_t *src = srcp;
6751 uint32_t *dest = destp;
6755 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
6757 ldata = le32_to_cpu(ldata);
6766 * lpfc_sli_bemem_bcopy - SLI memory copy function
6767 * @srcp: Source memory pointer.
6768 * @destp: Destination memory pointer.
6769 * @cnt: Number of words required to be copied.
6771 * This function is used for copying data between a data structure
6772 * with big endian representation to local endianness.
6773 * This function can be called with or without lock.
6776 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
6778 uint32_t *src = srcp;
6779 uint32_t *dest = destp;
6783 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
6785 ldata = be32_to_cpu(ldata);
6793 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
6794 * @phba: Pointer to HBA context object.
6795 * @pring: Pointer to driver SLI ring object.
6796 * @mp: Pointer to driver buffer object.
6798 * This function is called with no lock held.
6799 * It always return zero after adding the buffer to the postbufq
6803 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6804 struct lpfc_dmabuf *mp)
6806 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
6808 spin_lock_irq(&phba->hbalock);
6809 list_add_tail(&mp->list, &pring->postbufq);
6810 pring->postbufq_cnt++;
6811 spin_unlock_irq(&phba->hbalock);
6816 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
6817 * @phba: Pointer to HBA context object.
6819 * When HBQ is enabled, buffers are searched based on tags. This function
6820 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
6821 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
6822 * does not conflict with tags of buffer posted for unsolicited events.
6823 * The function returns the allocated tag. The function is called with
6827 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
6829 spin_lock_irq(&phba->hbalock);
6830 phba->buffer_tag_count++;
6832 * Always set the QUE_BUFTAG_BIT to distiguish between
6833 * a tag assigned by HBQ.
6835 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
6836 spin_unlock_irq(&phba->hbalock);
6837 return phba->buffer_tag_count;
6841 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
6842 * @phba: Pointer to HBA context object.
6843 * @pring: Pointer to driver SLI ring object.
6846 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
6847 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
6848 * iocb is posted to the response ring with the tag of the buffer.
6849 * This function searches the pring->postbufq list using the tag
6850 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
6851 * iocb. If the buffer is found then lpfc_dmabuf object of the
6852 * buffer is returned to the caller else NULL is returned.
6853 * This function is called with no lock held.
6855 struct lpfc_dmabuf *
6856 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6859 struct lpfc_dmabuf *mp, *next_mp;
6860 struct list_head *slp = &pring->postbufq;
6862 /* Search postbufq, from the begining, looking for a match on tag */
6863 spin_lock_irq(&phba->hbalock);
6864 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6865 if (mp->buffer_tag == tag) {
6866 list_del_init(&mp->list);
6867 pring->postbufq_cnt--;
6868 spin_unlock_irq(&phba->hbalock);
6873 spin_unlock_irq(&phba->hbalock);
6874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6875 "0402 Cannot find virtual addr for buffer tag on "
6876 "ring %d Data x%lx x%p x%p x%x\n",
6877 pring->ringno, (unsigned long) tag,
6878 slp->next, slp->prev, pring->postbufq_cnt);
6884 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
6885 * @phba: Pointer to HBA context object.
6886 * @pring: Pointer to driver SLI ring object.
6887 * @phys: DMA address of the buffer.
6889 * This function searches the buffer list using the dma_address
6890 * of unsolicited event to find the driver's lpfc_dmabuf object
6891 * corresponding to the dma_address. The function returns the
6892 * lpfc_dmabuf object if a buffer is found else it returns NULL.
6893 * This function is called by the ct and els unsolicited event
6894 * handlers to get the buffer associated with the unsolicited
6897 * This function is called with no lock held.
6899 struct lpfc_dmabuf *
6900 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6903 struct lpfc_dmabuf *mp, *next_mp;
6904 struct list_head *slp = &pring->postbufq;
6906 /* Search postbufq, from the begining, looking for a match on phys */
6907 spin_lock_irq(&phba->hbalock);
6908 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6909 if (mp->phys == phys) {
6910 list_del_init(&mp->list);
6911 pring->postbufq_cnt--;
6912 spin_unlock_irq(&phba->hbalock);
6917 spin_unlock_irq(&phba->hbalock);
6918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6919 "0410 Cannot find virtual addr for mapped buf on "
6920 "ring %d Data x%llx x%p x%p x%x\n",
6921 pring->ringno, (unsigned long long)phys,
6922 slp->next, slp->prev, pring->postbufq_cnt);
6927 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
6928 * @phba: Pointer to HBA context object.
6929 * @cmdiocb: Pointer to driver command iocb object.
6930 * @rspiocb: Pointer to driver response iocb object.
6932 * This function is the completion handler for the abort iocbs for
6933 * ELS commands. This function is called from the ELS ring event
6934 * handler with no lock held. This function frees memory resources
6935 * associated with the abort iocb.
6938 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
6939 struct lpfc_iocbq *rspiocb)
6941 IOCB_t *irsp = &rspiocb->iocb;
6942 uint16_t abort_iotag, abort_context;
6943 struct lpfc_iocbq *abort_iocb;
6944 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
6948 if (irsp->ulpStatus) {
6949 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
6950 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
6952 spin_lock_irq(&phba->hbalock);
6953 if (phba->sli_rev < LPFC_SLI_REV4) {
6954 if (abort_iotag != 0 &&
6955 abort_iotag <= phba->sli.last_iotag)
6957 phba->sli.iocbq_lookup[abort_iotag];
6959 /* For sli4 the abort_tag is the XRI,
6960 * so the abort routine puts the iotag of the iocb
6961 * being aborted in the context field of the abort
6964 abort_iocb = phba->sli.iocbq_lookup[abort_context];
6966 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI,
6967 "0327 Cannot abort els iocb %p "
6968 "with tag %x context %x, abort status %x, "
6970 abort_iocb, abort_iotag, abort_context,
6971 irsp->ulpStatus, irsp->un.ulpWord[4]);
6974 * If the iocb is not found in Firmware queue the iocb
6975 * might have completed already. Do not free it again.
6977 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
6978 if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
6979 spin_unlock_irq(&phba->hbalock);
6980 lpfc_sli_release_iocbq(phba, cmdiocb);
6983 /* For SLI4 the ulpContext field for abort IOCB
6984 * holds the iotag of the IOCB being aborted so
6985 * the local abort_context needs to be reset to
6986 * match the aborted IOCBs ulpContext.
6988 if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
6989 abort_context = abort_iocb->iocb.ulpContext;
6992 * make sure we have the right iocbq before taking it
6993 * off the txcmplq and try to call completion routine.
6996 abort_iocb->iocb.ulpContext != abort_context ||
6997 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
6998 spin_unlock_irq(&phba->hbalock);
7000 list_del_init(&abort_iocb->list);
7001 pring->txcmplq_cnt--;
7002 spin_unlock_irq(&phba->hbalock);
7004 /* Firmware could still be in progress of DMAing
7005 * payload, so don't free data buffer till after
7008 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
7010 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
7011 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
7012 abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED;
7013 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
7017 lpfc_sli_release_iocbq(phba, cmdiocb);
7022 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7023 * @phba: Pointer to HBA context object.
7024 * @cmdiocb: Pointer to driver command iocb object.
7025 * @rspiocb: Pointer to driver response iocb object.
7027 * The function is called from SLI ring event handler with no
7028 * lock held. This function is the completion handler for ELS commands
7029 * which are aborted. The function frees memory resources used for
7030 * the aborted ELS commands.
7033 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7034 struct lpfc_iocbq *rspiocb)
7036 IOCB_t *irsp = &rspiocb->iocb;
7038 /* ELS cmd tag <ulpIoTag> completes */
7039 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
7040 "0139 Ignoring ELS cmd tag x%x completion Data: "
7042 irsp->ulpIoTag, irsp->ulpStatus,
7043 irsp->un.ulpWord[4], irsp->ulpTimeout);
7044 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7045 lpfc_ct_free_iocb(phba, cmdiocb);
7047 lpfc_els_free_iocb(phba, cmdiocb);
7052 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7053 * @phba: Pointer to HBA context object.
7054 * @pring: Pointer to driver SLI ring object.
7055 * @cmdiocb: Pointer to driver command iocb object.
7057 * This function issues an abort iocb for the provided command
7058 * iocb. This function is called with hbalock held.
7059 * The function returns 0 when it fails due to memory allocation
7060 * failure or when the command iocb is an abort request.
7063 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7064 struct lpfc_iocbq *cmdiocb)
7066 struct lpfc_vport *vport = cmdiocb->vport;
7067 struct lpfc_iocbq *abtsiocbp;
7068 IOCB_t *icmd = NULL;
7069 IOCB_t *iabt = NULL;
7070 int retval = IOCB_ERROR;
7073 * There are certain command types we don't want to abort. And we
7074 * don't want to abort commands that are already in the process of
7077 icmd = &cmdiocb->iocb;
7078 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
7079 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7080 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
7083 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7084 * callback so that nothing happens when it finishes.
7086 if ((vport->load_flag & FC_UNLOADING) &&
7087 (pring->ringno == LPFC_ELS_RING)) {
7088 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7089 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7091 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
7092 goto abort_iotag_exit;
7095 /* issue ABTS for this IOCB based on iotag */
7096 abtsiocbp = __lpfc_sli_get_iocbq(phba);
7097 if (abtsiocbp == NULL)
7100 /* This signals the response to set the correct status
7101 * before calling the completion handler.
7103 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7105 iabt = &abtsiocbp->iocb;
7106 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7107 iabt->un.acxri.abortContextTag = icmd->ulpContext;
7108 if (phba->sli_rev == LPFC_SLI_REV4) {
7109 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
7110 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
7113 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
7115 iabt->ulpClass = icmd->ulpClass;
7117 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7118 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
7120 if (phba->link_state >= LPFC_LINK_UP)
7121 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7123 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7125 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
7127 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7128 "0339 Abort xri x%x, original iotag x%x, "
7129 "abort cmd iotag x%x\n",
7130 iabt->un.acxri.abortContextTag,
7131 iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
7132 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
7135 __lpfc_sli_release_iocbq(phba, abtsiocbp);
7138 * Caller to this routine should check for IOCB_ERROR
7139 * and handle it properly. This routine no longer removes
7140 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7146 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7147 * @iocbq: Pointer to driver iocb object.
7148 * @vport: Pointer to driver virtual port object.
7149 * @tgt_id: SCSI ID of the target.
7150 * @lun_id: LUN ID of the scsi device.
7151 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7153 * This function acts as an iocb filter for functions which abort or count
7154 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7155 * 0 if the filtering criteria is met for the given iocb and will return
7156 * 1 if the filtering criteria is not met.
7157 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7158 * given iocb is for the SCSI device specified by vport, tgt_id and
7160 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7161 * given iocb is for the SCSI target specified by vport and tgt_id
7163 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7164 * given iocb is for the SCSI host associated with the given vport.
7165 * This function is called with no locks held.
7168 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7169 uint16_t tgt_id, uint64_t lun_id,
7170 lpfc_ctx_cmd ctx_cmd)
7172 struct lpfc_scsi_buf *lpfc_cmd;
7175 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7178 if (iocbq->vport != vport)
7181 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
7183 if (lpfc_cmd->pCmd == NULL)
7188 if ((lpfc_cmd->rdata->pnode) &&
7189 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7190 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
7194 if ((lpfc_cmd->rdata->pnode) &&
7195 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
7202 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
7211 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7212 * @vport: Pointer to virtual port.
7213 * @tgt_id: SCSI ID of the target.
7214 * @lun_id: LUN ID of the scsi device.
7215 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7217 * This function returns number of FCP commands pending for the vport.
7218 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7219 * commands pending on the vport associated with SCSI device specified
7220 * by tgt_id and lun_id parameters.
7221 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7222 * commands pending on the vport associated with SCSI target specified
7223 * by tgt_id parameter.
7224 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7225 * commands pending on the vport.
7226 * This function returns the number of iocbs which satisfy the filter.
7227 * This function is called without any lock held.
7230 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7231 lpfc_ctx_cmd ctx_cmd)
7233 struct lpfc_hba *phba = vport->phba;
7234 struct lpfc_iocbq *iocbq;
7237 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7238 iocbq = phba->sli.iocbq_lookup[i];
7240 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7249 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7250 * @phba: Pointer to HBA context object
7251 * @cmdiocb: Pointer to command iocb object.
7252 * @rspiocb: Pointer to response iocb object.
7254 * This function is called when an aborted FCP iocb completes. This
7255 * function is called by the ring event handler with no lock held.
7256 * This function frees the iocb.
7259 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7260 struct lpfc_iocbq *rspiocb)
7262 lpfc_sli_release_iocbq(phba, cmdiocb);
7267 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7268 * @vport: Pointer to virtual port.
7269 * @pring: Pointer to driver SLI ring object.
7270 * @tgt_id: SCSI ID of the target.
7271 * @lun_id: LUN ID of the scsi device.
7272 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7274 * This function sends an abort command for every SCSI command
7275 * associated with the given virtual port pending on the ring
7276 * filtered by lpfc_sli_validate_fcp_iocb function.
7277 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7278 * FCP iocbs associated with lun specified by tgt_id and lun_id
7280 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7281 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7282 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7283 * FCP iocbs associated with virtual port.
7284 * This function returns number of iocbs it failed to abort.
7285 * This function is called with no locks held.
7288 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
7289 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
7291 struct lpfc_hba *phba = vport->phba;
7292 struct lpfc_iocbq *iocbq;
7293 struct lpfc_iocbq *abtsiocb;
7295 int errcnt = 0, ret_val = 0;
7298 for (i = 1; i <= phba->sli.last_iotag; i++) {
7299 iocbq = phba->sli.iocbq_lookup[i];
7301 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
7305 /* issue ABTS for this IOCB based on iotag */
7306 abtsiocb = lpfc_sli_get_iocbq(phba);
7307 if (abtsiocb == NULL) {
7313 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
7314 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
7315 if (phba->sli_rev == LPFC_SLI_REV4)
7316 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
7318 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
7319 abtsiocb->iocb.ulpLe = 1;
7320 abtsiocb->iocb.ulpClass = cmd->ulpClass;
7321 abtsiocb->vport = phba->pport;
7323 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7324 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
7326 if (lpfc_is_link_up(phba))
7327 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
7329 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
7331 /* Setup callback routine and issue the command. */
7332 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
7333 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
7335 if (ret_val == IOCB_ERROR) {
7336 lpfc_sli_release_iocbq(phba, abtsiocb);
7346 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
7347 * @phba: Pointer to HBA context object.
7348 * @cmdiocbq: Pointer to command iocb.
7349 * @rspiocbq: Pointer to response iocb.
7351 * This function is the completion handler for iocbs issued using
7352 * lpfc_sli_issue_iocb_wait function. This function is called by the
7353 * ring event handler function without any lock held. This function
7354 * can be called from both worker thread context and interrupt
7355 * context. This function also can be called from other thread which
7356 * cleans up the SLI layer objects.
7357 * This function copy the contents of the response iocb to the
7358 * response iocb memory object provided by the caller of
7359 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7360 * sleeps for the iocb completion.
7363 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
7364 struct lpfc_iocbq *cmdiocbq,
7365 struct lpfc_iocbq *rspiocbq)
7367 wait_queue_head_t *pdone_q;
7368 unsigned long iflags;
7370 spin_lock_irqsave(&phba->hbalock, iflags);
7371 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
7372 if (cmdiocbq->context2 && rspiocbq)
7373 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
7374 &rspiocbq->iocb, sizeof(IOCB_t));
7376 pdone_q = cmdiocbq->context_un.wait_queue;
7379 spin_unlock_irqrestore(&phba->hbalock, iflags);
7384 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7385 * @phba: Pointer to HBA context object..
7386 * @piocbq: Pointer to command iocb.
7387 * @flag: Flag to test.
7389 * This routine grabs the hbalock and then test the iocb_flag to
7390 * see if the passed in flag is set.
7393 * 0 if flag is not set.
7396 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
7397 struct lpfc_iocbq *piocbq, uint32_t flag)
7399 unsigned long iflags;
7402 spin_lock_irqsave(&phba->hbalock, iflags);
7403 ret = piocbq->iocb_flag & flag;
7404 spin_unlock_irqrestore(&phba->hbalock, iflags);
7410 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
7411 * @phba: Pointer to HBA context object..
7412 * @pring: Pointer to sli ring.
7413 * @piocb: Pointer to command iocb.
7414 * @prspiocbq: Pointer to response iocb.
7415 * @timeout: Timeout in number of seconds.
7417 * This function issues the iocb to firmware and waits for the
7418 * iocb to complete. If the iocb command is not
7419 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7420 * Caller should not free the iocb resources if this function
7421 * returns IOCB_TIMEDOUT.
7422 * The function waits for the iocb completion using an
7423 * non-interruptible wait.
7424 * This function will sleep while waiting for iocb completion.
7425 * So, this function should not be called from any context which
7426 * does not allow sleeping. Due to the same reason, this function
7427 * cannot be called with interrupt disabled.
7428 * This function assumes that the iocb completions occur while
7429 * this function sleep. So, this function cannot be called from
7430 * the thread which process iocb completion for this ring.
7431 * This function clears the iocb_flag of the iocb object before
7432 * issuing the iocb and the iocb completion handler sets this
7433 * flag and wakes this thread when the iocb completes.
7434 * The contents of the response iocb will be copied to prspiocbq
7435 * by the completion handler when the command completes.
7436 * This function returns IOCB_SUCCESS when success.
7437 * This function is called with no lock held.
7440 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
7441 uint32_t ring_number,
7442 struct lpfc_iocbq *piocb,
7443 struct lpfc_iocbq *prspiocbq,
7446 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7447 long timeleft, timeout_req = 0;
7448 int retval = IOCB_SUCCESS;
7452 * If the caller has provided a response iocbq buffer, then context2
7453 * is NULL or its an error.
7456 if (piocb->context2)
7458 piocb->context2 = prspiocbq;
7461 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
7462 piocb->context_un.wait_queue = &done_q;
7463 piocb->iocb_flag &= ~LPFC_IO_WAKE;
7465 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7466 creg_val = readl(phba->HCregaddr);
7467 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
7468 writel(creg_val, phba->HCregaddr);
7469 readl(phba->HCregaddr); /* flush */
7472 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0);
7473 if (retval == IOCB_SUCCESS) {
7474 timeout_req = timeout * HZ;
7475 timeleft = wait_event_timeout(done_q,
7476 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
7479 if (piocb->iocb_flag & LPFC_IO_WAKE) {
7480 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7481 "0331 IOCB wake signaled\n");
7482 } else if (timeleft == 0) {
7483 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7484 "0338 IOCB wait timeout error - no "
7485 "wake response Data x%x\n", timeout);
7486 retval = IOCB_TIMEDOUT;
7488 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7489 "0330 IOCB wake NOT set, "
7491 timeout, (timeleft / jiffies));
7492 retval = IOCB_TIMEDOUT;
7495 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7496 "0332 IOCB wait issue failed, Data x%x\n",
7498 retval = IOCB_ERROR;
7501 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7502 creg_val = readl(phba->HCregaddr);
7503 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
7504 writel(creg_val, phba->HCregaddr);
7505 readl(phba->HCregaddr); /* flush */
7509 piocb->context2 = NULL;
7511 piocb->context_un.wait_queue = NULL;
7512 piocb->iocb_cmpl = NULL;
7517 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
7518 * @phba: Pointer to HBA context object.
7519 * @pmboxq: Pointer to driver mailbox object.
7520 * @timeout: Timeout in number of seconds.
7522 * This function issues the mailbox to firmware and waits for the
7523 * mailbox command to complete. If the mailbox command is not
7524 * completed within timeout seconds, it returns MBX_TIMEOUT.
7525 * The function waits for the mailbox completion using an
7526 * interruptible wait. If the thread is woken up due to a
7527 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7528 * should not free the mailbox resources, if this function returns
7530 * This function will sleep while waiting for mailbox completion.
7531 * So, this function should not be called from any context which
7532 * does not allow sleeping. Due to the same reason, this function
7533 * cannot be called with interrupt disabled.
7534 * This function assumes that the mailbox completion occurs while
7535 * this function sleep. So, this function cannot be called from
7536 * the worker thread which processes mailbox completion.
7537 * This function is called in the context of HBA management
7539 * This function returns MBX_SUCCESS when successful.
7540 * This function is called with no lock held.
7543 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
7546 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7550 /* The caller must leave context1 empty. */
7551 if (pmboxq->context1)
7552 return MBX_NOT_FINISHED;
7554 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
7555 /* setup wake call as IOCB callback */
7556 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
7557 /* setup context field to pass wait_queue pointer to wake function */
7558 pmboxq->context1 = &done_q;
7560 /* now issue the command */
7561 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
7563 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
7564 wait_event_interruptible_timeout(done_q,
7565 pmboxq->mbox_flag & LPFC_MBX_WAKE,
7568 spin_lock_irqsave(&phba->hbalock, flag);
7569 pmboxq->context1 = NULL;
7571 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7572 * else do not free the resources.
7574 if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
7575 retval = MBX_SUCCESS;
7577 retval = MBX_TIMEOUT;
7578 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7580 spin_unlock_irqrestore(&phba->hbalock, flag);
7587 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
7588 * @phba: Pointer to HBA context.
7590 * This function is called to shutdown the driver's mailbox sub-system.
7591 * It first marks the mailbox sub-system is in a block state to prevent
7592 * the asynchronous mailbox command from issued off the pending mailbox
7593 * command queue. If the mailbox command sub-system shutdown is due to
7594 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7595 * the mailbox sub-system flush routine to forcefully bring down the
7596 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7597 * as with offline or HBA function reset), this routine will wait for the
7598 * outstanding mailbox command to complete before invoking the mailbox
7599 * sub-system flush routine to gracefully bring down mailbox sub-system.
7602 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
7604 struct lpfc_sli *psli = &phba->sli;
7605 uint8_t actcmd = MBX_HEARTBEAT;
7606 unsigned long timeout;
7608 spin_lock_irq(&phba->hbalock);
7609 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7610 spin_unlock_irq(&phba->hbalock);
7612 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7613 spin_lock_irq(&phba->hbalock);
7614 if (phba->sli.mbox_active)
7615 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
7616 spin_unlock_irq(&phba->hbalock);
7617 /* Determine how long we might wait for the active mailbox
7618 * command to be gracefully completed by firmware.
7620 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
7622 while (phba->sli.mbox_active) {
7623 /* Check active mailbox complete status every 2ms */
7625 if (time_after(jiffies, timeout))
7626 /* Timeout, let the mailbox flush routine to
7627 * forcefully release active mailbox command
7632 lpfc_sli_mbox_sys_flush(phba);
7636 * lpfc_sli_eratt_read - read sli-3 error attention events
7637 * @phba: Pointer to HBA context.
7639 * This function is called to read the SLI3 device error attention registers
7640 * for possible error attention events. The caller must hold the hostlock
7641 * with spin_lock_irq().
7643 * This fucntion returns 1 when there is Error Attention in the Host Attention
7644 * Register and returns 0 otherwise.
7647 lpfc_sli_eratt_read(struct lpfc_hba *phba)
7651 /* Read chip Host Attention (HA) register */
7652 ha_copy = readl(phba->HAregaddr);
7653 if (ha_copy & HA_ERATT) {
7654 /* Read host status register to retrieve error event */
7655 lpfc_sli_read_hs(phba);
7657 /* Check if there is a deferred error condition is active */
7658 if ((HS_FFER1 & phba->work_hs) &&
7659 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7660 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
7661 phba->hba_flag |= DEFER_ERATT;
7662 /* Clear all interrupt enable conditions */
7663 writel(0, phba->HCregaddr);
7664 readl(phba->HCregaddr);
7667 /* Set the driver HA work bitmap */
7668 phba->work_ha |= HA_ERATT;
7669 /* Indicate polling handles this ERATT */
7670 phba->hba_flag |= HBA_ERATT_HANDLED;
7677 * lpfc_sli4_eratt_read - read sli-4 error attention events
7678 * @phba: Pointer to HBA context.
7680 * This function is called to read the SLI4 device error attention registers
7681 * for possible error attention events. The caller must hold the hostlock
7682 * with spin_lock_irq().
7684 * This fucntion returns 1 when there is Error Attention in the Host Attention
7685 * Register and returns 0 otherwise.
7688 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
7690 uint32_t uerr_sta_hi, uerr_sta_lo;
7692 /* For now, use the SLI4 device internal unrecoverable error
7693 * registers for error attention. This can be changed later.
7695 uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
7696 uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
7697 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
7698 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
7699 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7700 "1423 HBA Unrecoverable error: "
7701 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7702 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7703 uerr_sta_lo, uerr_sta_hi,
7704 phba->sli4_hba.ue_mask_lo,
7705 phba->sli4_hba.ue_mask_hi);
7706 phba->work_status[0] = uerr_sta_lo;
7707 phba->work_status[1] = uerr_sta_hi;
7708 /* Set the driver HA work bitmap */
7709 phba->work_ha |= HA_ERATT;
7710 /* Indicate polling handles this ERATT */
7711 phba->hba_flag |= HBA_ERATT_HANDLED;
7718 * lpfc_sli_check_eratt - check error attention events
7719 * @phba: Pointer to HBA context.
7721 * This function is called from timer soft interrupt context to check HBA's
7722 * error attention register bit for error attention events.
7724 * This fucntion returns 1 when there is Error Attention in the Host Attention
7725 * Register and returns 0 otherwise.
7728 lpfc_sli_check_eratt(struct lpfc_hba *phba)
7732 /* If somebody is waiting to handle an eratt, don't process it
7733 * here. The brdkill function will do this.
7735 if (phba->link_flag & LS_IGNORE_ERATT)
7738 /* Check if interrupt handler handles this ERATT */
7739 spin_lock_irq(&phba->hbalock);
7740 if (phba->hba_flag & HBA_ERATT_HANDLED) {
7741 /* Interrupt handler has handled ERATT */
7742 spin_unlock_irq(&phba->hbalock);
7747 * If there is deferred error attention, do not check for error
7750 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7751 spin_unlock_irq(&phba->hbalock);
7755 /* If PCI channel is offline, don't process it */
7756 if (unlikely(pci_channel_offline(phba->pcidev))) {
7757 spin_unlock_irq(&phba->hbalock);
7761 switch (phba->sli_rev) {
7764 /* Read chip Host Attention (HA) register */
7765 ha_copy = lpfc_sli_eratt_read(phba);
7768 /* Read devcie Uncoverable Error (UERR) registers */
7769 ha_copy = lpfc_sli4_eratt_read(phba);
7772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7773 "0299 Invalid SLI revision (%d)\n",
7778 spin_unlock_irq(&phba->hbalock);
7784 * lpfc_intr_state_check - Check device state for interrupt handling
7785 * @phba: Pointer to HBA context.
7787 * This inline routine checks whether a device or its PCI slot is in a state
7788 * that the interrupt should be handled.
7790 * This function returns 0 if the device or the PCI slot is in a state that
7791 * interrupt should be handled, otherwise -EIO.
7794 lpfc_intr_state_check(struct lpfc_hba *phba)
7796 /* If the pci channel is offline, ignore all the interrupts */
7797 if (unlikely(pci_channel_offline(phba->pcidev)))
7800 /* Update device level interrupt statistics */
7801 phba->sli.slistat.sli_intr++;
7803 /* Ignore all interrupts during initialization. */
7804 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7811 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
7812 * @irq: Interrupt number.
7813 * @dev_id: The device context pointer.
7815 * This function is directly called from the PCI layer as an interrupt
7816 * service routine when device with SLI-3 interface spec is enabled with
7817 * MSI-X multi-message interrupt mode and there are slow-path events in
7818 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
7819 * interrupt mode, this function is called as part of the device-level
7820 * interrupt handler. When the PCI slot is in error recovery or the HBA
7821 * is undergoing initialization, the interrupt handler will not process
7822 * the interrupt. The link attention and ELS ring attention events are
7823 * handled by the worker thread. The interrupt handler signals the worker
7824 * thread and returns for these events. This function is called without
7825 * any lock held. It gets the hbalock to access and update SLI data
7828 * This function returns IRQ_HANDLED when interrupt is handled else it
7832 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
7834 struct lpfc_hba *phba;
7835 uint32_t ha_copy, hc_copy;
7836 uint32_t work_ha_copy;
7837 unsigned long status;
7838 unsigned long iflag;
7841 MAILBOX_t *mbox, *pmbox;
7842 struct lpfc_vport *vport;
7843 struct lpfc_nodelist *ndlp;
7844 struct lpfc_dmabuf *mp;
7849 * Get the driver's phba structure from the dev_id and
7850 * assume the HBA is not interrupting.
7852 phba = (struct lpfc_hba *)dev_id;
7854 if (unlikely(!phba))
7858 * Stuff needs to be attented to when this function is invoked as an
7859 * individual interrupt handler in MSI-X multi-message interrupt mode
7861 if (phba->intr_type == MSIX) {
7862 /* Check device state for handling interrupt */
7863 if (lpfc_intr_state_check(phba))
7865 /* Need to read HA REG for slow-path events */
7866 spin_lock_irqsave(&phba->hbalock, iflag);
7867 ha_copy = readl(phba->HAregaddr);
7868 /* If somebody is waiting to handle an eratt don't process it
7869 * here. The brdkill function will do this.
7871 if (phba->link_flag & LS_IGNORE_ERATT)
7872 ha_copy &= ~HA_ERATT;
7873 /* Check the need for handling ERATT in interrupt handler */
7874 if (ha_copy & HA_ERATT) {
7875 if (phba->hba_flag & HBA_ERATT_HANDLED)
7876 /* ERATT polling has handled ERATT */
7877 ha_copy &= ~HA_ERATT;
7879 /* Indicate interrupt handler handles ERATT */
7880 phba->hba_flag |= HBA_ERATT_HANDLED;
7884 * If there is deferred error attention, do not check for any
7887 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7888 spin_unlock_irqrestore(&phba->hbalock, iflag);
7892 /* Clear up only attention source related to slow-path */
7893 hc_copy = readl(phba->HCregaddr);
7894 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
7895 HC_LAINT_ENA | HC_ERINT_ENA),
7897 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
7899 writel(hc_copy, phba->HCregaddr);
7900 readl(phba->HAregaddr); /* flush */
7901 spin_unlock_irqrestore(&phba->hbalock, iflag);
7903 ha_copy = phba->ha_copy;
7905 work_ha_copy = ha_copy & phba->work_ha_mask;
7908 if (work_ha_copy & HA_LATT) {
7909 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
7911 * Turn off Link Attention interrupts
7912 * until CLEAR_LA done
7914 spin_lock_irqsave(&phba->hbalock, iflag);
7915 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
7916 control = readl(phba->HCregaddr);
7917 control &= ~HC_LAINT_ENA;
7918 writel(control, phba->HCregaddr);
7919 readl(phba->HCregaddr); /* flush */
7920 spin_unlock_irqrestore(&phba->hbalock, iflag);
7923 work_ha_copy &= ~HA_LATT;
7926 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
7928 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
7929 * the only slow ring.
7931 status = (work_ha_copy &
7932 (HA_RXMASK << (4*LPFC_ELS_RING)));
7933 status >>= (4*LPFC_ELS_RING);
7934 if (status & HA_RXMASK) {
7935 spin_lock_irqsave(&phba->hbalock, iflag);
7936 control = readl(phba->HCregaddr);
7938 lpfc_debugfs_slow_ring_trc(phba,
7939 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
7941 (uint32_t)phba->sli.slistat.sli_intr);
7943 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
7944 lpfc_debugfs_slow_ring_trc(phba,
7946 "pwork:x%x hawork:x%x wait:x%x",
7947 phba->work_ha, work_ha_copy,
7948 (uint32_t)((unsigned long)
7949 &phba->work_waitq));
7952 ~(HC_R0INT_ENA << LPFC_ELS_RING);
7953 writel(control, phba->HCregaddr);
7954 readl(phba->HCregaddr); /* flush */
7957 lpfc_debugfs_slow_ring_trc(phba,
7958 "ISR slow ring: pwork:"
7959 "x%x hawork:x%x wait:x%x",
7960 phba->work_ha, work_ha_copy,
7961 (uint32_t)((unsigned long)
7962 &phba->work_waitq));
7964 spin_unlock_irqrestore(&phba->hbalock, iflag);
7967 spin_lock_irqsave(&phba->hbalock, iflag);
7968 if (work_ha_copy & HA_ERATT) {
7969 lpfc_sli_read_hs(phba);
7971 * Check if there is a deferred error condition
7974 if ((HS_FFER1 & phba->work_hs) &&
7975 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7976 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
7977 phba->hba_flag |= DEFER_ERATT;
7978 /* Clear all interrupt enable conditions */
7979 writel(0, phba->HCregaddr);
7980 readl(phba->HCregaddr);
7984 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
7985 pmb = phba->sli.mbox_active;
7990 /* First check out the status word */
7991 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
7992 if (pmbox->mbxOwner != OWN_HOST) {
7993 spin_unlock_irqrestore(&phba->hbalock, iflag);
7995 * Stray Mailbox Interrupt, mbxCommand <cmd>
7996 * mbxStatus <status>
7998 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8000 "(%d):0304 Stray Mailbox "
8001 "Interrupt mbxCommand x%x "
8003 (vport ? vport->vpi : 0),
8006 /* clear mailbox attention bit */
8007 work_ha_copy &= ~HA_MBATT;
8009 phba->sli.mbox_active = NULL;
8010 spin_unlock_irqrestore(&phba->hbalock, iflag);
8011 phba->last_completion_time = jiffies;
8012 del_timer(&phba->sli.mbox_tmo);
8013 if (pmb->mbox_cmpl) {
8014 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8017 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8018 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8020 lpfc_debugfs_disc_trc(vport,
8021 LPFC_DISC_TRC_MBOX_VPORT,
8023 "status:x%x rpi:x%x",
8024 (uint32_t)pmbox->mbxStatus,
8025 pmbox->un.varWords[0], 0);
8027 if (!pmbox->mbxStatus) {
8028 mp = (struct lpfc_dmabuf *)
8030 ndlp = (struct lpfc_nodelist *)
8033 /* Reg_LOGIN of dflt RPI was
8034 * successful. new lets get
8035 * rid of the RPI using the
8038 lpfc_unreg_login(phba,
8040 pmbox->un.varWords[0],
8043 lpfc_mbx_cmpl_dflt_rpi;
8045 pmb->context2 = ndlp;
8047 rc = lpfc_sli_issue_mbox(phba,
8051 lpfc_printf_log(phba,
8054 "0350 rc should have"
8056 if (rc != MBX_NOT_FINISHED)
8057 goto send_current_mbox;
8061 &phba->pport->work_port_lock,
8063 phba->pport->work_port_events &=
8065 spin_unlock_irqrestore(
8066 &phba->pport->work_port_lock,
8068 lpfc_mbox_cmpl_put(phba, pmb);
8071 spin_unlock_irqrestore(&phba->hbalock, iflag);
8073 if ((work_ha_copy & HA_MBATT) &&
8074 (phba->sli.mbox_active == NULL)) {
8076 /* Process next mailbox command if there is one */
8078 rc = lpfc_sli_issue_mbox(phba, NULL,
8080 } while (rc == MBX_NOT_FINISHED);
8081 if (rc != MBX_SUCCESS)
8082 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8083 LOG_SLI, "0349 rc should be "
8087 spin_lock_irqsave(&phba->hbalock, iflag);
8088 phba->work_ha |= work_ha_copy;
8089 spin_unlock_irqrestore(&phba->hbalock, iflag);
8090 lpfc_worker_wake_up(phba);
8094 } /* lpfc_sli_sp_intr_handler */
8097 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8098 * @irq: Interrupt number.
8099 * @dev_id: The device context pointer.
8101 * This function is directly called from the PCI layer as an interrupt
8102 * service routine when device with SLI-3 interface spec is enabled with
8103 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8104 * ring event in the HBA. However, when the device is enabled with either
8105 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8106 * device-level interrupt handler. When the PCI slot is in error recovery
8107 * or the HBA is undergoing initialization, the interrupt handler will not
8108 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8109 * the intrrupt context. This function is called without any lock held.
8110 * It gets the hbalock to access and update SLI data structures.
8112 * This function returns IRQ_HANDLED when interrupt is handled else it
8116 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
8118 struct lpfc_hba *phba;
8120 unsigned long status;
8121 unsigned long iflag;
8123 /* Get the driver's phba structure from the dev_id and
8124 * assume the HBA is not interrupting.
8126 phba = (struct lpfc_hba *) dev_id;
8128 if (unlikely(!phba))
8132 * Stuff needs to be attented to when this function is invoked as an
8133 * individual interrupt handler in MSI-X multi-message interrupt mode
8135 if (phba->intr_type == MSIX) {
8136 /* Check device state for handling interrupt */
8137 if (lpfc_intr_state_check(phba))
8139 /* Need to read HA REG for FCP ring and other ring events */
8140 ha_copy = readl(phba->HAregaddr);
8141 /* Clear up only attention source related to fast-path */
8142 spin_lock_irqsave(&phba->hbalock, iflag);
8144 * If there is deferred error attention, do not check for
8147 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8148 spin_unlock_irqrestore(&phba->hbalock, iflag);
8151 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8153 readl(phba->HAregaddr); /* flush */
8154 spin_unlock_irqrestore(&phba->hbalock, iflag);
8156 ha_copy = phba->ha_copy;
8159 * Process all events on FCP ring. Take the optimized path for FCP IO.
8161 ha_copy &= ~(phba->work_ha_mask);
8163 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8164 status >>= (4*LPFC_FCP_RING);
8165 if (status & HA_RXMASK)
8166 lpfc_sli_handle_fast_ring_event(phba,
8167 &phba->sli.ring[LPFC_FCP_RING],
8170 if (phba->cfg_multi_ring_support == 2) {
8172 * Process all events on extra ring. Take the optimized path
8173 * for extra ring IO.
8175 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8176 status >>= (4*LPFC_EXTRA_RING);
8177 if (status & HA_RXMASK) {
8178 lpfc_sli_handle_fast_ring_event(phba,
8179 &phba->sli.ring[LPFC_EXTRA_RING],
8184 } /* lpfc_sli_fp_intr_handler */
8187 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8188 * @irq: Interrupt number.
8189 * @dev_id: The device context pointer.
8191 * This function is the HBA device-level interrupt handler to device with
8192 * SLI-3 interface spec, called from the PCI layer when either MSI or
8193 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8194 * requires driver attention. This function invokes the slow-path interrupt
8195 * attention handling function and fast-path interrupt attention handling
8196 * function in turn to process the relevant HBA attention events. This
8197 * function is called without any lock held. It gets the hbalock to access
8198 * and update SLI data structures.
8200 * This function returns IRQ_HANDLED when interrupt is handled, else it
8204 lpfc_sli_intr_handler(int irq, void *dev_id)
8206 struct lpfc_hba *phba;
8207 irqreturn_t sp_irq_rc, fp_irq_rc;
8208 unsigned long status1, status2;
8212 * Get the driver's phba structure from the dev_id and
8213 * assume the HBA is not interrupting.
8215 phba = (struct lpfc_hba *) dev_id;
8217 if (unlikely(!phba))
8220 /* Check device state for handling interrupt */
8221 if (lpfc_intr_state_check(phba))
8224 spin_lock(&phba->hbalock);
8225 phba->ha_copy = readl(phba->HAregaddr);
8226 if (unlikely(!phba->ha_copy)) {
8227 spin_unlock(&phba->hbalock);
8229 } else if (phba->ha_copy & HA_ERATT) {
8230 if (phba->hba_flag & HBA_ERATT_HANDLED)
8231 /* ERATT polling has handled ERATT */
8232 phba->ha_copy &= ~HA_ERATT;
8234 /* Indicate interrupt handler handles ERATT */
8235 phba->hba_flag |= HBA_ERATT_HANDLED;
8239 * If there is deferred error attention, do not check for any interrupt.
8241 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8242 spin_unlock_irq(&phba->hbalock);
8246 /* Clear attention sources except link and error attentions */
8247 hc_copy = readl(phba->HCregaddr);
8248 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
8249 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
8251 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
8252 writel(hc_copy, phba->HCregaddr);
8253 readl(phba->HAregaddr); /* flush */
8254 spin_unlock(&phba->hbalock);
8257 * Invokes slow-path host attention interrupt handling as appropriate.
8260 /* status of events with mailbox and link attention */
8261 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
8263 /* status of events with ELS ring */
8264 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
8265 status2 >>= (4*LPFC_ELS_RING);
8267 if (status1 || (status2 & HA_RXMASK))
8268 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
8270 sp_irq_rc = IRQ_NONE;
8273 * Invoke fast-path host attention interrupt handling as appropriate.
8276 /* status of events with FCP ring */
8277 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8278 status1 >>= (4*LPFC_FCP_RING);
8280 /* status of events with extra ring */
8281 if (phba->cfg_multi_ring_support == 2) {
8282 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8283 status2 >>= (4*LPFC_EXTRA_RING);
8287 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
8288 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
8290 fp_irq_rc = IRQ_NONE;
8292 /* Return device-level interrupt handling status */
8293 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
8294 } /* lpfc_sli_intr_handler */
8297 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8298 * @phba: pointer to lpfc hba data structure.
8300 * This routine is invoked by the worker thread to process all the pending
8301 * SLI4 FCP abort XRI events.
8303 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
8305 struct lpfc_cq_event *cq_event;
8307 /* First, declare the fcp xri abort event has been handled */
8308 spin_lock_irq(&phba->hbalock);
8309 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
8310 spin_unlock_irq(&phba->hbalock);
8311 /* Now, handle all the fcp xri abort events */
8312 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
8313 /* Get the first event from the head of the event queue */
8314 spin_lock_irq(&phba->hbalock);
8315 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8316 cq_event, struct lpfc_cq_event, list);
8317 spin_unlock_irq(&phba->hbalock);
8318 /* Notify aborted XRI for FCP work queue */
8319 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8320 /* Free the event processed back to the free pool */
8321 lpfc_sli4_cq_event_release(phba, cq_event);
8326 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8327 * @phba: pointer to lpfc hba data structure.
8329 * This routine is invoked by the worker thread to process all the pending
8330 * SLI4 els abort xri events.
8332 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
8334 struct lpfc_cq_event *cq_event;
8336 /* First, declare the els xri abort event has been handled */
8337 spin_lock_irq(&phba->hbalock);
8338 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
8339 spin_unlock_irq(&phba->hbalock);
8340 /* Now, handle all the els xri abort events */
8341 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
8342 /* Get the first event from the head of the event queue */
8343 spin_lock_irq(&phba->hbalock);
8344 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8345 cq_event, struct lpfc_cq_event, list);
8346 spin_unlock_irq(&phba->hbalock);
8347 /* Notify aborted XRI for ELS work queue */
8348 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8349 /* Free the event processed back to the free pool */
8350 lpfc_sli4_cq_event_release(phba, cq_event);
8355 lpfc_sli4_iocb_param_transfer(struct lpfc_iocbq *pIocbIn,
8356 struct lpfc_iocbq *pIocbOut,
8357 struct lpfc_wcqe_complete *wcqe)
8359 size_t offset = offsetof(struct lpfc_iocbq, iocb);
8361 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
8362 sizeof(struct lpfc_iocbq) - offset);
8363 /* Map WCQE parameters into irspiocb parameters */
8364 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
8365 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
8366 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
8367 pIocbIn->iocb.un.fcpi.fcpi_parm =
8368 pIocbOut->iocb.un.fcpi.fcpi_parm -
8369 wcqe->total_data_placed;
8371 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8373 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8377 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8378 * @phba: Pointer to HBA context object.
8379 * @wcqe: Pointer to work-queue completion queue entry.
8381 * This routine handles an ELS work-queue completion event and construct
8382 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8383 * discovery engine to handle.
8385 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8387 static struct lpfc_iocbq *
8388 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
8389 struct lpfc_iocbq *irspiocbq)
8391 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8392 struct lpfc_iocbq *cmdiocbq;
8393 struct lpfc_wcqe_complete *wcqe;
8394 unsigned long iflags;
8396 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
8397 spin_lock_irqsave(&phba->hbalock, iflags);
8398 pring->stats.iocb_event++;
8399 /* Look up the ELS command IOCB and create pseudo response IOCB */
8400 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8401 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8402 spin_unlock_irqrestore(&phba->hbalock, iflags);
8404 if (unlikely(!cmdiocbq)) {
8405 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8406 "0386 ELS complete with no corresponding "
8407 "cmdiocb: iotag (%d)\n",
8408 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8409 lpfc_sli_release_iocbq(phba, irspiocbq);
8413 /* Fake the irspiocbq and copy necessary response information */
8414 lpfc_sli4_iocb_param_transfer(irspiocbq, cmdiocbq, wcqe);
8420 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8421 * @phba: Pointer to HBA context object.
8422 * @cqe: Pointer to mailbox completion queue entry.
8424 * This routine process a mailbox completion queue entry with asynchrous
8427 * Return: true if work posted to worker thread, otherwise false.
8430 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8432 struct lpfc_cq_event *cq_event;
8433 unsigned long iflags;
8435 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8436 "0392 Async Event: word0:x%x, word1:x%x, "
8437 "word2:x%x, word3:x%x\n", mcqe->word0,
8438 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
8440 /* Allocate a new internal CQ_EVENT entry */
8441 cq_event = lpfc_sli4_cq_event_alloc(phba);
8443 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8444 "0394 Failed to allocate CQ_EVENT entry\n");
8448 /* Move the CQE into an asynchronous event entry */
8449 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
8450 spin_lock_irqsave(&phba->hbalock, iflags);
8451 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
8452 /* Set the async event flag */
8453 phba->hba_flag |= ASYNC_EVENT;
8454 spin_unlock_irqrestore(&phba->hbalock, iflags);
8460 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8461 * @phba: Pointer to HBA context object.
8462 * @cqe: Pointer to mailbox completion queue entry.
8464 * This routine process a mailbox completion queue entry with mailbox
8467 * Return: true if work posted to worker thread, otherwise false.
8470 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8472 uint32_t mcqe_status;
8473 MAILBOX_t *mbox, *pmbox;
8474 struct lpfc_mqe *mqe;
8475 struct lpfc_vport *vport;
8476 struct lpfc_nodelist *ndlp;
8477 struct lpfc_dmabuf *mp;
8478 unsigned long iflags;
8480 bool workposted = false;
8483 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8484 if (!bf_get(lpfc_trailer_completed, mcqe))
8485 goto out_no_mqe_complete;
8487 /* Get the reference to the active mbox command */
8488 spin_lock_irqsave(&phba->hbalock, iflags);
8489 pmb = phba->sli.mbox_active;
8490 if (unlikely(!pmb)) {
8491 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
8492 "1832 No pending MBOX command to handle\n");
8493 spin_unlock_irqrestore(&phba->hbalock, iflags);
8494 goto out_no_mqe_complete;
8496 spin_unlock_irqrestore(&phba->hbalock, iflags);
8498 pmbox = (MAILBOX_t *)&pmb->u.mqe;
8502 /* Reset heartbeat timer */
8503 phba->last_completion_time = jiffies;
8504 del_timer(&phba->sli.mbox_tmo);
8506 /* Move mbox data to caller's mailbox region, do endian swapping */
8507 if (pmb->mbox_cmpl && mbox)
8508 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
8509 /* Set the mailbox status with SLI4 range 0x4000 */
8510 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
8511 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
8512 bf_set(lpfc_mqe_status, mqe,
8513 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8515 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8516 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8517 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
8518 "MBOX dflt rpi: status:x%x rpi:x%x",
8520 pmbox->un.varWords[0], 0);
8521 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
8522 mp = (struct lpfc_dmabuf *)(pmb->context1);
8523 ndlp = (struct lpfc_nodelist *)pmb->context2;
8524 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8525 * RID of the PPI using the same mbox buffer.
8527 lpfc_unreg_login(phba, vport->vpi,
8528 pmbox->un.varWords[0], pmb);
8529 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
8531 pmb->context2 = ndlp;
8533 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
8535 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8536 LOG_SLI, "0385 rc should "
8537 "have been MBX_BUSY\n");
8538 if (rc != MBX_NOT_FINISHED)
8539 goto send_current_mbox;
8542 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8543 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8544 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8546 /* There is mailbox completion work to do */
8547 spin_lock_irqsave(&phba->hbalock, iflags);
8548 __lpfc_mbox_cmpl_put(phba, pmb);
8549 phba->work_ha |= HA_MBATT;
8550 spin_unlock_irqrestore(&phba->hbalock, iflags);
8554 spin_lock_irqsave(&phba->hbalock, iflags);
8555 /* Release the mailbox command posting token */
8556 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8557 /* Setting active mailbox pointer need to be in sync to flag clear */
8558 phba->sli.mbox_active = NULL;
8559 spin_unlock_irqrestore(&phba->hbalock, iflags);
8560 /* Wake up worker thread to post the next pending mailbox command */
8561 lpfc_worker_wake_up(phba);
8562 out_no_mqe_complete:
8563 if (bf_get(lpfc_trailer_consumed, mcqe))
8564 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
8569 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8570 * @phba: Pointer to HBA context object.
8571 * @cqe: Pointer to mailbox completion queue entry.
8573 * This routine process a mailbox completion queue entry, it invokes the
8574 * proper mailbox complete handling or asynchrous event handling routine
8575 * according to the MCQE's async bit.
8577 * Return: true if work posted to worker thread, otherwise false.
8580 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8582 struct lpfc_mcqe mcqe;
8585 /* Copy the mailbox MCQE and convert endian order as needed */
8586 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
8588 /* Invoke the proper event handling routine */
8589 if (!bf_get(lpfc_trailer_async, &mcqe))
8590 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
8592 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
8597 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8598 * @phba: Pointer to HBA context object.
8599 * @wcqe: Pointer to work-queue completion queue entry.
8601 * This routine handles an ELS work-queue completion event.
8603 * Return: true if work posted to worker thread, otherwise false.
8606 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
8607 struct lpfc_wcqe_complete *wcqe)
8609 struct lpfc_iocbq *irspiocbq;
8610 unsigned long iflags;
8612 /* Get an irspiocbq for later ELS response processing use */
8613 irspiocbq = lpfc_sli_get_iocbq(phba);
8615 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8616 "0387 Failed to allocate an iocbq\n");
8620 /* Save off the slow-path queue event for work thread to process */
8621 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
8622 spin_lock_irqsave(&phba->hbalock, iflags);
8623 list_add_tail(&irspiocbq->cq_event.list,
8624 &phba->sli4_hba.sp_queue_event);
8625 phba->hba_flag |= HBA_SP_QUEUE_EVT;
8626 spin_unlock_irqrestore(&phba->hbalock, iflags);
8632 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8633 * @phba: Pointer to HBA context object.
8634 * @wcqe: Pointer to work-queue completion queue entry.
8636 * This routine handles slow-path WQ entry comsumed event by invoking the
8637 * proper WQ release routine to the slow-path WQ.
8640 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
8641 struct lpfc_wcqe_release *wcqe)
8643 /* Check for the slow-path ELS work queue */
8644 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
8645 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
8646 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8648 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8649 "2579 Slow-path wqe consume event carries "
8650 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8651 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
8652 phba->sli4_hba.els_wq->queue_id);
8656 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8657 * @phba: Pointer to HBA context object.
8658 * @cq: Pointer to a WQ completion queue.
8659 * @wcqe: Pointer to work-queue completion queue entry.
8661 * This routine handles an XRI abort event.
8663 * Return: true if work posted to worker thread, otherwise false.
8666 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
8667 struct lpfc_queue *cq,
8668 struct sli4_wcqe_xri_aborted *wcqe)
8670 bool workposted = false;
8671 struct lpfc_cq_event *cq_event;
8672 unsigned long iflags;
8674 /* Allocate a new internal CQ_EVENT entry */
8675 cq_event = lpfc_sli4_cq_event_alloc(phba);
8677 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8678 "0602 Failed to allocate CQ_EVENT entry\n");
8682 /* Move the CQE into the proper xri abort event list */
8683 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
8684 switch (cq->subtype) {
8686 spin_lock_irqsave(&phba->hbalock, iflags);
8687 list_add_tail(&cq_event->list,
8688 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
8689 /* Set the fcp xri abort event flag */
8690 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
8691 spin_unlock_irqrestore(&phba->hbalock, iflags);
8695 spin_lock_irqsave(&phba->hbalock, iflags);
8696 list_add_tail(&cq_event->list,
8697 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8698 /* Set the els xri abort event flag */
8699 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
8700 spin_unlock_irqrestore(&phba->hbalock, iflags);
8704 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8705 "0603 Invalid work queue CQE subtype (x%x)\n",
8714 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8715 * @phba: Pointer to HBA context object.
8716 * @rcqe: Pointer to receive-queue completion queue entry.
8718 * This routine process a receive-queue completion queue entry.
8720 * Return: true if work posted to worker thread, otherwise false.
8723 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
8725 bool workposted = false;
8726 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
8727 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
8728 struct hbq_dmabuf *dma_buf;
8730 unsigned long iflags;
8732 if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
8735 status = bf_get(lpfc_rcqe_status, rcqe);
8737 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
8738 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8739 "2537 Receive Frame Truncated!!\n");
8740 case FC_STATUS_RQ_SUCCESS:
8741 lpfc_sli4_rq_release(hrq, drq);
8742 spin_lock_irqsave(&phba->hbalock, iflags);
8743 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
8745 spin_unlock_irqrestore(&phba->hbalock, iflags);
8748 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
8749 /* save off the frame for the word thread to process */
8750 list_add_tail(&dma_buf->cq_event.list,
8751 &phba->sli4_hba.sp_queue_event);
8752 /* Frame received */
8753 phba->hba_flag |= HBA_SP_QUEUE_EVT;
8754 spin_unlock_irqrestore(&phba->hbalock, iflags);
8757 case FC_STATUS_INSUFF_BUF_NEED_BUF:
8758 case FC_STATUS_INSUFF_BUF_FRM_DISC:
8759 /* Post more buffers if possible */
8760 spin_lock_irqsave(&phba->hbalock, iflags);
8761 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
8762 spin_unlock_irqrestore(&phba->hbalock, iflags);
8771 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
8772 * @phba: Pointer to HBA context object.
8773 * @cq: Pointer to the completion queue.
8774 * @wcqe: Pointer to a completion queue entry.
8776 * This routine process a slow-path work-queue or recieve queue completion queue
8779 * Return: true if work posted to worker thread, otherwise false.
8782 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
8783 struct lpfc_cqe *cqe)
8785 struct lpfc_cqe cqevt;
8786 bool workposted = false;
8788 /* Copy the work queue CQE and convert endian order if needed */
8789 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
8791 /* Check and process for different type of WCQE and dispatch */
8792 switch (bf_get(lpfc_cqe_code, &cqevt)) {
8793 case CQE_CODE_COMPL_WQE:
8794 /* Process the WQ/RQ complete event */
8795 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
8796 (struct lpfc_wcqe_complete *)&cqevt);
8798 case CQE_CODE_RELEASE_WQE:
8799 /* Process the WQ release event */
8800 lpfc_sli4_sp_handle_rel_wcqe(phba,
8801 (struct lpfc_wcqe_release *)&cqevt);
8803 case CQE_CODE_XRI_ABORTED:
8804 /* Process the WQ XRI abort event */
8805 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
8806 (struct sli4_wcqe_xri_aborted *)&cqevt);
8808 case CQE_CODE_RECEIVE:
8809 /* Process the RQ event */
8810 workposted = lpfc_sli4_sp_handle_rcqe(phba,
8811 (struct lpfc_rcqe *)&cqevt);
8814 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8815 "0388 Not a valid WCQE code: x%x\n",
8816 bf_get(lpfc_cqe_code, &cqevt));
8823 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
8824 * @phba: Pointer to HBA context object.
8825 * @eqe: Pointer to fast-path event queue entry.
8827 * This routine process a event queue entry from the slow-path event queue.
8828 * It will check the MajorCode and MinorCode to determine this is for a
8829 * completion event on a completion queue, if not, an error shall be logged
8830 * and just return. Otherwise, it will get to the corresponding completion
8831 * queue and process all the entries on that completion queue, rearm the
8832 * completion queue, and then return.
8836 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
8838 struct lpfc_queue *cq = NULL, *childq, *speq;
8839 struct lpfc_cqe *cqe;
8840 bool workposted = false;
8844 if (bf_get(lpfc_eqe_major_code, eqe) != 0 ||
8845 bf_get(lpfc_eqe_minor_code, eqe) != 0) {
8846 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8847 "0359 Not a valid slow-path completion "
8848 "event: majorcode=x%x, minorcode=x%x\n",
8849 bf_get(lpfc_eqe_major_code, eqe),
8850 bf_get(lpfc_eqe_minor_code, eqe));
8854 /* Get the reference to the corresponding CQ */
8855 cqid = bf_get(lpfc_eqe_resource_id, eqe);
8857 /* Search for completion queue pointer matching this cqid */
8858 speq = phba->sli4_hba.sp_eq;
8859 list_for_each_entry(childq, &speq->child_list, list) {
8860 if (childq->queue_id == cqid) {
8865 if (unlikely(!cq)) {
8866 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8867 "0365 Slow-path CQ identifier (%d) does "
8868 "not exist\n", cqid);
8872 /* Process all the entries to the CQ */
8875 while ((cqe = lpfc_sli4_cq_get(cq))) {
8876 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
8877 if (!(++ecount % LPFC_GET_QE_REL_INT))
8878 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8882 while ((cqe = lpfc_sli4_cq_get(cq))) {
8883 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
8884 if (!(++ecount % LPFC_GET_QE_REL_INT))
8885 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8889 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8890 "0370 Invalid completion queue type (%d)\n",
8895 /* Catch the no cq entry condition, log an error */
8896 if (unlikely(ecount == 0))
8897 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8898 "0371 No entry from the CQ: identifier "
8899 "(x%x), type (%d)\n", cq->queue_id, cq->type);
8901 /* In any case, flash and re-arm the RCQ */
8902 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
8904 /* wake up worker thread if there are works to be done */
8906 lpfc_worker_wake_up(phba);
8910 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
8911 * @eqe: Pointer to fast-path completion queue entry.
8913 * This routine process a fast-path work queue completion entry from fast-path
8914 * event queue for FCP command response completion.
8917 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
8918 struct lpfc_wcqe_complete *wcqe)
8920 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
8921 struct lpfc_iocbq *cmdiocbq;
8922 struct lpfc_iocbq irspiocbq;
8923 unsigned long iflags;
8925 spin_lock_irqsave(&phba->hbalock, iflags);
8926 pring->stats.iocb_event++;
8927 spin_unlock_irqrestore(&phba->hbalock, iflags);
8929 /* Check for response status */
8930 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
8931 /* If resource errors reported from HBA, reduce queue
8932 * depth of the SCSI device.
8934 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
8935 IOSTAT_LOCAL_REJECT) &&
8936 (wcqe->parameter == IOERR_NO_RESOURCES)) {
8937 phba->lpfc_rampdown_queue_depth(phba);
8939 /* Log the error status */
8940 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8941 "0373 FCP complete error: status=x%x, "
8942 "hw_status=x%x, total_data_specified=%d, "
8943 "parameter=x%x, word3=x%x\n",
8944 bf_get(lpfc_wcqe_c_status, wcqe),
8945 bf_get(lpfc_wcqe_c_hw_status, wcqe),
8946 wcqe->total_data_placed, wcqe->parameter,
8950 /* Look up the FCP command IOCB and create pseudo response IOCB */
8951 spin_lock_irqsave(&phba->hbalock, iflags);
8952 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8953 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8954 spin_unlock_irqrestore(&phba->hbalock, iflags);
8955 if (unlikely(!cmdiocbq)) {
8956 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8957 "0374 FCP complete with no corresponding "
8958 "cmdiocb: iotag (%d)\n",
8959 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8962 if (unlikely(!cmdiocbq->iocb_cmpl)) {
8963 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8964 "0375 FCP cmdiocb not callback function "
8966 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8970 /* Fake the irspiocb and copy necessary response information */
8971 lpfc_sli4_iocb_param_transfer(&irspiocbq, cmdiocbq, wcqe);
8973 /* Pass the cmd_iocb and the rsp state to the upper layer */
8974 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
8978 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
8979 * @phba: Pointer to HBA context object.
8980 * @cq: Pointer to completion queue.
8981 * @wcqe: Pointer to work-queue completion queue entry.
8983 * This routine handles an fast-path WQ entry comsumed event by invoking the
8984 * proper WQ release routine to the slow-path WQ.
8987 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
8988 struct lpfc_wcqe_release *wcqe)
8990 struct lpfc_queue *childwq;
8991 bool wqid_matched = false;
8994 /* Check for fast-path FCP work queue release */
8995 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
8996 list_for_each_entry(childwq, &cq->child_list, list) {
8997 if (childwq->queue_id == fcp_wqid) {
8998 lpfc_sli4_wq_release(childwq,
8999 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9000 wqid_matched = true;
9004 /* Report warning log message if no match found */
9005 if (wqid_matched != true)
9006 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9007 "2580 Fast-path wqe consume event carries "
9008 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
9012 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9013 * @cq: Pointer to the completion queue.
9014 * @eqe: Pointer to fast-path completion queue entry.
9016 * This routine process a fast-path work queue completion entry from fast-path
9017 * event queue for FCP command response completion.
9020 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9021 struct lpfc_cqe *cqe)
9023 struct lpfc_wcqe_release wcqe;
9024 bool workposted = false;
9026 /* Copy the work queue CQE and convert endian order if needed */
9027 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9029 /* Check and process for different type of WCQE and dispatch */
9030 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9031 case CQE_CODE_COMPL_WQE:
9032 /* Process the WQ complete event */
9033 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9034 (struct lpfc_wcqe_complete *)&wcqe);
9036 case CQE_CODE_RELEASE_WQE:
9037 /* Process the WQ release event */
9038 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9039 (struct lpfc_wcqe_release *)&wcqe);
9041 case CQE_CODE_XRI_ABORTED:
9042 /* Process the WQ XRI abort event */
9043 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9044 (struct sli4_wcqe_xri_aborted *)&wcqe);
9047 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9048 "0144 Not a valid WCQE code: x%x\n",
9049 bf_get(lpfc_wcqe_c_code, &wcqe));
9056 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9057 * @phba: Pointer to HBA context object.
9058 * @eqe: Pointer to fast-path event queue entry.
9060 * This routine process a event queue entry from the fast-path event queue.
9061 * It will check the MajorCode and MinorCode to determine this is for a
9062 * completion event on a completion queue, if not, an error shall be logged
9063 * and just return. Otherwise, it will get to the corresponding completion
9064 * queue and process all the entries on the completion queue, rearm the
9065 * completion queue, and then return.
9068 lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9071 struct lpfc_queue *cq;
9072 struct lpfc_cqe *cqe;
9073 bool workposted = false;
9077 if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0) ||
9078 unlikely(bf_get(lpfc_eqe_minor_code, eqe) != 0)) {
9079 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9080 "0366 Not a valid fast-path completion "
9081 "event: majorcode=x%x, minorcode=x%x\n",
9082 bf_get(lpfc_eqe_major_code, eqe),
9083 bf_get(lpfc_eqe_minor_code, eqe));
9087 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9088 if (unlikely(!cq)) {
9089 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9090 "0367 Fast-path completion queue does not "
9095 /* Get the reference to the corresponding CQ */
9096 cqid = bf_get(lpfc_eqe_resource_id, eqe);
9097 if (unlikely(cqid != cq->queue_id)) {
9098 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9099 "0368 Miss-matched fast-path completion "
9100 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9101 cqid, cq->queue_id);
9105 /* Process all the entries to the CQ */
9106 while ((cqe = lpfc_sli4_cq_get(cq))) {
9107 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9108 if (!(++ecount % LPFC_GET_QE_REL_INT))
9109 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9112 /* Catch the no cq entry condition */
9113 if (unlikely(ecount == 0))
9114 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9115 "0369 No entry from fast-path completion "
9116 "queue fcpcqid=%d\n", cq->queue_id);
9118 /* In any case, flash and re-arm the CQ */
9119 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9121 /* wake up worker thread if there are works to be done */
9123 lpfc_worker_wake_up(phba);
9127 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9129 struct lpfc_eqe *eqe;
9131 /* walk all the EQ entries and drop on the floor */
9132 while ((eqe = lpfc_sli4_eq_get(eq)))
9135 /* Clear and re-arm the EQ */
9136 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9140 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9141 * @irq: Interrupt number.
9142 * @dev_id: The device context pointer.
9144 * This function is directly called from the PCI layer as an interrupt
9145 * service routine when device with SLI-4 interface spec is enabled with
9146 * MSI-X multi-message interrupt mode and there are slow-path events in
9147 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9148 * interrupt mode, this function is called as part of the device-level
9149 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9150 * undergoing initialization, the interrupt handler will not process the
9151 * interrupt. The link attention and ELS ring attention events are handled
9152 * by the worker thread. The interrupt handler signals the worker thread
9153 * and returns for these events. This function is called without any lock
9154 * held. It gets the hbalock to access and update SLI data structures.
9156 * This function returns IRQ_HANDLED when interrupt is handled else it
9160 lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9162 struct lpfc_hba *phba;
9163 struct lpfc_queue *speq;
9164 struct lpfc_eqe *eqe;
9165 unsigned long iflag;
9169 * Get the driver's phba structure from the dev_id
9171 phba = (struct lpfc_hba *)dev_id;
9173 if (unlikely(!phba))
9176 /* Get to the EQ struct associated with this vector */
9177 speq = phba->sli4_hba.sp_eq;
9179 /* Check device state for handling interrupt */
9180 if (unlikely(lpfc_intr_state_check(phba))) {
9181 /* Check again for link_state with lock held */
9182 spin_lock_irqsave(&phba->hbalock, iflag);
9183 if (phba->link_state < LPFC_LINK_DOWN)
9184 /* Flush, clear interrupt, and rearm the EQ */
9185 lpfc_sli4_eq_flush(phba, speq);
9186 spin_unlock_irqrestore(&phba->hbalock, iflag);
9191 * Process all the event on FCP slow-path EQ
9193 while ((eqe = lpfc_sli4_eq_get(speq))) {
9194 lpfc_sli4_sp_handle_eqe(phba, eqe);
9195 if (!(++ecount % LPFC_GET_QE_REL_INT))
9196 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
9199 /* Always clear and re-arm the slow-path EQ */
9200 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
9202 /* Catch the no cq entry condition */
9203 if (unlikely(ecount == 0)) {
9204 if (phba->intr_type == MSIX)
9205 /* MSI-X treated interrupt served as no EQ share INT */
9206 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9207 "0357 MSI-X interrupt with no EQE\n");
9209 /* Non MSI-X treated on interrupt as EQ share INT */
9214 } /* lpfc_sli4_sp_intr_handler */
9217 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9218 * @irq: Interrupt number.
9219 * @dev_id: The device context pointer.
9221 * This function is directly called from the PCI layer as an interrupt
9222 * service routine when device with SLI-4 interface spec is enabled with
9223 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9224 * ring event in the HBA. However, when the device is enabled with either
9225 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9226 * device-level interrupt handler. When the PCI slot is in error recovery
9227 * or the HBA is undergoing initialization, the interrupt handler will not
9228 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9229 * the intrrupt context. This function is called without any lock held.
9230 * It gets the hbalock to access and update SLI data structures. Note that,
9231 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9232 * equal to that of FCP CQ index.
9234 * This function returns IRQ_HANDLED when interrupt is handled else it
9238 lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
9240 struct lpfc_hba *phba;
9241 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9242 struct lpfc_queue *fpeq;
9243 struct lpfc_eqe *eqe;
9244 unsigned long iflag;
9248 /* Get the driver's phba structure from the dev_id */
9249 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
9250 phba = fcp_eq_hdl->phba;
9251 fcp_eqidx = fcp_eq_hdl->idx;
9253 if (unlikely(!phba))
9256 /* Get to the EQ struct associated with this vector */
9257 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
9259 /* Check device state for handling interrupt */
9260 if (unlikely(lpfc_intr_state_check(phba))) {
9261 /* Check again for link_state with lock held */
9262 spin_lock_irqsave(&phba->hbalock, iflag);
9263 if (phba->link_state < LPFC_LINK_DOWN)
9264 /* Flush, clear interrupt, and rearm the EQ */
9265 lpfc_sli4_eq_flush(phba, fpeq);
9266 spin_unlock_irqrestore(&phba->hbalock, iflag);
9271 * Process all the event on FCP fast-path EQ
9273 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9274 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
9275 if (!(++ecount % LPFC_GET_QE_REL_INT))
9276 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
9279 /* Always clear and re-arm the fast-path EQ */
9280 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
9282 if (unlikely(ecount == 0)) {
9283 if (phba->intr_type == MSIX)
9284 /* MSI-X treated interrupt served as no EQ share INT */
9285 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9286 "0358 MSI-X interrupt with no EQE\n");
9288 /* Non MSI-X treated on interrupt as EQ share INT */
9293 } /* lpfc_sli4_fp_intr_handler */
9296 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9297 * @irq: Interrupt number.
9298 * @dev_id: The device context pointer.
9300 * This function is the device-level interrupt handler to device with SLI-4
9301 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9302 * interrupt mode is enabled and there is an event in the HBA which requires
9303 * driver attention. This function invokes the slow-path interrupt attention
9304 * handling function and fast-path interrupt attention handling function in
9305 * turn to process the relevant HBA attention events. This function is called
9306 * without any lock held. It gets the hbalock to access and update SLI data
9309 * This function returns IRQ_HANDLED when interrupt is handled, else it
9313 lpfc_sli4_intr_handler(int irq, void *dev_id)
9315 struct lpfc_hba *phba;
9316 irqreturn_t sp_irq_rc, fp_irq_rc;
9317 bool fp_handled = false;
9320 /* Get the driver's phba structure from the dev_id */
9321 phba = (struct lpfc_hba *)dev_id;
9323 if (unlikely(!phba))
9327 * Invokes slow-path host attention interrupt handling as appropriate.
9329 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
9332 * Invoke fast-path host attention interrupt handling as appropriate.
9334 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
9335 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
9336 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
9337 if (fp_irq_rc == IRQ_HANDLED)
9341 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
9342 } /* lpfc_sli4_intr_handler */
9345 * lpfc_sli4_queue_free - free a queue structure and associated memory
9346 * @queue: The queue structure to free.
9348 * This function frees a queue structure and the DMAable memeory used for
9349 * the host resident queue. This function must be called after destroying the
9353 lpfc_sli4_queue_free(struct lpfc_queue *queue)
9355 struct lpfc_dmabuf *dmabuf;
9360 while (!list_empty(&queue->page_list)) {
9361 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
9363 dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE,
9364 dmabuf->virt, dmabuf->phys);
9372 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9373 * @phba: The HBA that this queue is being created on.
9374 * @entry_size: The size of each queue entry for this queue.
9375 * @entry count: The number of entries that this queue will handle.
9377 * This function allocates a queue structure and the DMAable memory used for
9378 * the host resident queue. This function must be called before creating the
9382 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
9383 uint32_t entry_count)
9385 struct lpfc_queue *queue;
9386 struct lpfc_dmabuf *dmabuf;
9387 int x, total_qe_count;
9391 queue = kzalloc(sizeof(struct lpfc_queue) +
9392 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
9395 queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE;
9396 INIT_LIST_HEAD(&queue->list);
9397 INIT_LIST_HEAD(&queue->page_list);
9398 INIT_LIST_HEAD(&queue->child_list);
9399 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
9400 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9403 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9404 PAGE_SIZE, &dmabuf->phys,
9406 if (!dmabuf->virt) {
9410 memset(dmabuf->virt, 0, PAGE_SIZE);
9411 dmabuf->buffer_tag = x;
9412 list_add_tail(&dmabuf->list, &queue->page_list);
9413 /* initialize queue's entry array */
9414 dma_pointer = dmabuf->virt;
9415 for (; total_qe_count < entry_count &&
9416 dma_pointer < (PAGE_SIZE + dmabuf->virt);
9417 total_qe_count++, dma_pointer += entry_size) {
9418 queue->qe[total_qe_count].address = dma_pointer;
9421 queue->entry_size = entry_size;
9422 queue->entry_count = entry_count;
9427 lpfc_sli4_queue_free(queue);
9432 * lpfc_eq_create - Create an Event Queue on the HBA
9433 * @phba: HBA structure that indicates port to create a queue on.
9434 * @eq: The queue structure to use to create the event queue.
9435 * @imax: The maximum interrupt per second limit.
9437 * This function creates an event queue, as detailed in @eq, on a port,
9438 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9440 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9441 * is used to get the entry count and entry size that are necessary to
9442 * determine the number of pages to allocate and use for this queue. This
9443 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9444 * event queue. This function is asynchronous and will wait for the mailbox
9445 * command to finish before continuing.
9447 * On success this function will return a zero. If unable to allocate enough
9448 * memory this function will return ENOMEM. If the queue create mailbox command
9449 * fails this function will return ENXIO.
9452 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
9454 struct lpfc_mbx_eq_create *eq_create;
9456 int rc, length, status = 0;
9457 struct lpfc_dmabuf *dmabuf;
9458 uint32_t shdr_status, shdr_add_status;
9459 union lpfc_sli4_cfg_shdr *shdr;
9462 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9465 length = (sizeof(struct lpfc_mbx_eq_create) -
9466 sizeof(struct lpfc_sli4_cfg_mhdr));
9467 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9468 LPFC_MBOX_OPCODE_EQ_CREATE,
9469 length, LPFC_SLI4_MBX_EMBED);
9470 eq_create = &mbox->u.mqe.un.eq_create;
9471 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
9473 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
9475 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
9476 /* Calculate delay multiper from maximum interrupt per second */
9477 dmult = LPFC_DMULT_CONST/imax - 1;
9478 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
9480 switch (eq->entry_count) {
9482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9483 "0360 Unsupported EQ count. (%d)\n",
9485 if (eq->entry_count < 256)
9487 /* otherwise default to smallest count (drop through) */
9489 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9493 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9497 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9501 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9505 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9509 list_for_each_entry(dmabuf, &eq->page_list, list) {
9510 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9511 putPaddrLow(dmabuf->phys);
9512 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9513 putPaddrHigh(dmabuf->phys);
9515 mbox->vport = phba->pport;
9516 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9517 mbox->context1 = NULL;
9518 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9519 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
9520 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9521 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9522 if (shdr_status || shdr_add_status || rc) {
9523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9524 "2500 EQ_CREATE mailbox failed with "
9525 "status x%x add_status x%x, mbx status x%x\n",
9526 shdr_status, shdr_add_status, rc);
9530 eq->subtype = LPFC_NONE;
9531 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
9532 if (eq->queue_id == 0xFFFF)
9537 mempool_free(mbox, phba->mbox_mem_pool);
9542 * lpfc_cq_create - Create a Completion Queue on the HBA
9543 * @phba: HBA structure that indicates port to create a queue on.
9544 * @cq: The queue structure to use to create the completion queue.
9545 * @eq: The event queue to bind this completion queue to.
9547 * This function creates a completion queue, as detailed in @wq, on a port,
9548 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9550 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9551 * is used to get the entry count and entry size that are necessary to
9552 * determine the number of pages to allocate and use for this queue. The @eq
9553 * is used to indicate which event queue to bind this completion queue to. This
9554 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9555 * completion queue. This function is asynchronous and will wait for the mailbox
9556 * command to finish before continuing.
9558 * On success this function will return a zero. If unable to allocate enough
9559 * memory this function will return ENOMEM. If the queue create mailbox command
9560 * fails this function will return ENXIO.
9563 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
9564 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
9566 struct lpfc_mbx_cq_create *cq_create;
9567 struct lpfc_dmabuf *dmabuf;
9569 int rc, length, status = 0;
9570 uint32_t shdr_status, shdr_add_status;
9571 union lpfc_sli4_cfg_shdr *shdr;
9573 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9576 length = (sizeof(struct lpfc_mbx_cq_create) -
9577 sizeof(struct lpfc_sli4_cfg_mhdr));
9578 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9579 LPFC_MBOX_OPCODE_CQ_CREATE,
9580 length, LPFC_SLI4_MBX_EMBED);
9581 cq_create = &mbox->u.mqe.un.cq_create;
9582 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
9584 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
9585 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
9586 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
9587 switch (cq->entry_count) {
9589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9590 "0361 Unsupported CQ count. (%d)\n",
9592 if (cq->entry_count < 256)
9594 /* otherwise default to smallest count (drop through) */
9596 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9600 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9604 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9608 list_for_each_entry(dmabuf, &cq->page_list, list) {
9609 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9610 putPaddrLow(dmabuf->phys);
9611 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9612 putPaddrHigh(dmabuf->phys);
9614 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9616 /* The IOCTL status is embedded in the mailbox subheader. */
9617 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
9618 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9619 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9620 if (shdr_status || shdr_add_status || rc) {
9621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9622 "2501 CQ_CREATE mailbox failed with "
9623 "status x%x add_status x%x, mbx status x%x\n",
9624 shdr_status, shdr_add_status, rc);
9628 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9629 if (cq->queue_id == 0xFFFF) {
9633 /* link the cq onto the parent eq child list */
9634 list_add_tail(&cq->list, &eq->child_list);
9635 /* Set up completion queue's type and subtype */
9637 cq->subtype = subtype;
9638 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9643 mempool_free(mbox, phba->mbox_mem_pool);
9648 * lpfc_mq_create - Create a mailbox Queue on the HBA
9649 * @phba: HBA structure that indicates port to create a queue on.
9650 * @mq: The queue structure to use to create the mailbox queue.
9652 * This function creates a mailbox queue, as detailed in @mq, on a port,
9653 * described by @phba by sending a MQ_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. This
9658 * function will send the MQ_CREATE mailbox command to the HBA to setup the
9659 * mailbox queue. This function is asynchronous and will wait for the mailbox
9660 * command to finish before continuing.
9662 * On success this function will return a zero. If unable to allocate enough
9663 * memory this function will return ENOMEM. If the queue create mailbox command
9664 * fails this function will return ENXIO.
9667 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
9668 struct lpfc_queue *cq, uint32_t subtype)
9670 struct lpfc_mbx_mq_create *mq_create;
9671 struct lpfc_dmabuf *dmabuf;
9673 int rc, length, status = 0;
9674 uint32_t shdr_status, shdr_add_status;
9675 union lpfc_sli4_cfg_shdr *shdr;
9677 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9680 length = (sizeof(struct lpfc_mbx_mq_create) -
9681 sizeof(struct lpfc_sli4_cfg_mhdr));
9682 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9683 LPFC_MBOX_OPCODE_MQ_CREATE,
9684 length, LPFC_SLI4_MBX_EMBED);
9685 mq_create = &mbox->u.mqe.un.mq_create;
9686 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
9688 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
9690 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
9691 switch (mq->entry_count) {
9693 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9694 "0362 Unsupported MQ count. (%d)\n",
9696 if (mq->entry_count < 16)
9698 /* otherwise default to smallest count (drop through) */
9700 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9704 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9708 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9712 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9716 list_for_each_entry(dmabuf, &mq->page_list, list) {
9717 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9718 putPaddrLow(dmabuf->phys);
9719 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9720 putPaddrHigh(dmabuf->phys);
9722 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9723 /* The IOCTL status is embedded in the mailbox subheader. */
9724 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
9725 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9726 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9727 if (shdr_status || shdr_add_status || rc) {
9728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9729 "2502 MQ_CREATE mailbox failed with "
9730 "status x%x add_status x%x, mbx status x%x\n",
9731 shdr_status, shdr_add_status, rc);
9735 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
9736 if (mq->queue_id == 0xFFFF) {
9741 mq->subtype = subtype;
9745 /* link the mq onto the parent cq child list */
9746 list_add_tail(&mq->list, &cq->child_list);
9748 mempool_free(mbox, phba->mbox_mem_pool);
9753 * lpfc_wq_create - Create a Work Queue on the HBA
9754 * @phba: HBA structure that indicates port to create a queue on.
9755 * @wq: The queue structure to use to create the work queue.
9756 * @cq: The completion queue to bind this work queue to.
9757 * @subtype: The subtype of the work queue indicating its functionality.
9759 * This function creates a work queue, as detailed in @wq, on a port, described
9760 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
9762 * The @phba struct is used to send mailbox command to HBA. The @wq struct
9763 * is used to get the entry count and entry size that are necessary to
9764 * determine the number of pages to allocate and use for this queue. The @cq
9765 * is used to indicate which completion queue to bind this work queue to. This
9766 * function will send the WQ_CREATE mailbox command to the HBA to setup the
9767 * work queue. This function is asynchronous and will wait for the mailbox
9768 * command to finish before continuing.
9770 * On success this function will return a zero. If unable to allocate enough
9771 * memory this function will return ENOMEM. If the queue create mailbox command
9772 * fails this function will return ENXIO.
9775 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
9776 struct lpfc_queue *cq, uint32_t subtype)
9778 struct lpfc_mbx_wq_create *wq_create;
9779 struct lpfc_dmabuf *dmabuf;
9781 int rc, length, status = 0;
9782 uint32_t shdr_status, shdr_add_status;
9783 union lpfc_sli4_cfg_shdr *shdr;
9785 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9788 length = (sizeof(struct lpfc_mbx_wq_create) -
9789 sizeof(struct lpfc_sli4_cfg_mhdr));
9790 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9791 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
9792 length, LPFC_SLI4_MBX_EMBED);
9793 wq_create = &mbox->u.mqe.un.wq_create;
9794 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
9796 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
9798 list_for_each_entry(dmabuf, &wq->page_list, list) {
9799 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9800 putPaddrLow(dmabuf->phys);
9801 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9802 putPaddrHigh(dmabuf->phys);
9804 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9805 /* The IOCTL status is embedded in the mailbox subheader. */
9806 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
9807 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9808 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9809 if (shdr_status || shdr_add_status || rc) {
9810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9811 "2503 WQ_CREATE mailbox failed with "
9812 "status x%x add_status x%x, mbx status x%x\n",
9813 shdr_status, shdr_add_status, rc);
9817 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
9818 if (wq->queue_id == 0xFFFF) {
9823 wq->subtype = subtype;
9827 /* link the wq onto the parent cq child list */
9828 list_add_tail(&wq->list, &cq->child_list);
9830 mempool_free(mbox, phba->mbox_mem_pool);
9835 * lpfc_rq_create - Create a Receive Queue on the HBA
9836 * @phba: HBA structure that indicates port to create a queue on.
9837 * @hrq: The queue structure to use to create the header receive queue.
9838 * @drq: The queue structure to use to create the data receive queue.
9839 * @cq: The completion queue to bind this work queue to.
9841 * This function creates a receive buffer queue pair , as detailed in @hrq and
9842 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
9845 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
9846 * struct is used to get the entry count that is necessary to determine the
9847 * number of pages to use for this queue. The @cq is used to indicate which
9848 * completion queue to bind received buffers that are posted to these queues to.
9849 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
9850 * receive queue pair. This function is asynchronous and will wait for the
9851 * mailbox command to finish before continuing.
9853 * On success this function will return a zero. If unable to allocate enough
9854 * memory this function will return ENOMEM. If the queue create mailbox command
9855 * fails this function will return ENXIO.
9858 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
9859 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
9861 struct lpfc_mbx_rq_create *rq_create;
9862 struct lpfc_dmabuf *dmabuf;
9864 int rc, length, status = 0;
9865 uint32_t shdr_status, shdr_add_status;
9866 union lpfc_sli4_cfg_shdr *shdr;
9868 if (hrq->entry_count != drq->entry_count)
9870 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9873 length = (sizeof(struct lpfc_mbx_rq_create) -
9874 sizeof(struct lpfc_sli4_cfg_mhdr));
9875 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9876 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
9877 length, LPFC_SLI4_MBX_EMBED);
9878 rq_create = &mbox->u.mqe.un.rq_create;
9879 switch (hrq->entry_count) {
9881 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9882 "2535 Unsupported RQ count. (%d)\n",
9884 if (hrq->entry_count < 512)
9886 /* otherwise default to smallest count (drop through) */
9888 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9889 LPFC_RQ_RING_SIZE_512);
9892 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9893 LPFC_RQ_RING_SIZE_1024);
9896 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9897 LPFC_RQ_RING_SIZE_2048);
9900 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9901 LPFC_RQ_RING_SIZE_4096);
9904 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
9906 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
9908 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
9910 list_for_each_entry(dmabuf, &hrq->page_list, list) {
9911 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9912 putPaddrLow(dmabuf->phys);
9913 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9914 putPaddrHigh(dmabuf->phys);
9916 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9917 /* The IOCTL status is embedded in the mailbox subheader. */
9918 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
9919 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9920 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9921 if (shdr_status || shdr_add_status || rc) {
9922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9923 "2504 RQ_CREATE mailbox failed with "
9924 "status x%x add_status x%x, mbx status x%x\n",
9925 shdr_status, shdr_add_status, rc);
9929 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
9930 if (hrq->queue_id == 0xFFFF) {
9934 hrq->type = LPFC_HRQ;
9935 hrq->subtype = subtype;
9936 hrq->host_index = 0;
9939 /* now create the data queue */
9940 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9941 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
9942 length, LPFC_SLI4_MBX_EMBED);
9943 switch (drq->entry_count) {
9945 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9946 "2536 Unsupported RQ count. (%d)\n",
9948 if (drq->entry_count < 512)
9950 /* otherwise default to smallest count (drop through) */
9952 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9953 LPFC_RQ_RING_SIZE_512);
9956 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9957 LPFC_RQ_RING_SIZE_1024);
9960 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9961 LPFC_RQ_RING_SIZE_2048);
9964 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9965 LPFC_RQ_RING_SIZE_4096);
9968 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
9970 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
9972 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
9973 LPFC_DATA_BUF_SIZE);
9974 list_for_each_entry(dmabuf, &drq->page_list, list) {
9975 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9976 putPaddrLow(dmabuf->phys);
9977 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9978 putPaddrHigh(dmabuf->phys);
9980 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9981 /* The IOCTL status is embedded in the mailbox subheader. */
9982 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
9983 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9984 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9985 if (shdr_status || shdr_add_status || rc) {
9989 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
9990 if (drq->queue_id == 0xFFFF) {
9994 drq->type = LPFC_DRQ;
9995 drq->subtype = subtype;
9996 drq->host_index = 0;
9999 /* link the header and data RQs onto the parent cq child list */
10000 list_add_tail(&hrq->list, &cq->child_list);
10001 list_add_tail(&drq->list, &cq->child_list);
10004 mempool_free(mbox, phba->mbox_mem_pool);
10009 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10010 * @eq: The queue structure associated with the queue to destroy.
10012 * This function destroys a queue, as detailed in @eq by sending an mailbox
10013 * command, specific to the type of queue, to the HBA.
10015 * The @eq struct is used to get the queue ID of the queue to destroy.
10017 * On success this function will return a zero. If the queue destroy mailbox
10018 * command fails this function will return ENXIO.
10021 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10023 LPFC_MBOXQ_t *mbox;
10024 int rc, length, status = 0;
10025 uint32_t shdr_status, shdr_add_status;
10026 union lpfc_sli4_cfg_shdr *shdr;
10030 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10033 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10034 sizeof(struct lpfc_sli4_cfg_mhdr));
10035 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10036 LPFC_MBOX_OPCODE_EQ_DESTROY,
10037 length, LPFC_SLI4_MBX_EMBED);
10038 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10040 mbox->vport = eq->phba->pport;
10041 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10043 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10044 /* The IOCTL status is embedded in the mailbox subheader. */
10045 shdr = (union lpfc_sli4_cfg_shdr *)
10046 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10047 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10048 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10049 if (shdr_status || shdr_add_status || rc) {
10050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10051 "2505 EQ_DESTROY mailbox failed with "
10052 "status x%x add_status x%x, mbx status x%x\n",
10053 shdr_status, shdr_add_status, rc);
10057 /* Remove eq from any list */
10058 list_del_init(&eq->list);
10059 mempool_free(mbox, eq->phba->mbox_mem_pool);
10064 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10065 * @cq: The queue structure associated with the queue to destroy.
10067 * This function destroys a queue, as detailed in @cq by sending an mailbox
10068 * command, specific to the type of queue, to the HBA.
10070 * The @cq struct is used to get the queue ID of the queue to destroy.
10072 * On success this function will return a zero. If the queue destroy mailbox
10073 * command fails this function will return ENXIO.
10076 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
10078 LPFC_MBOXQ_t *mbox;
10079 int rc, length, status = 0;
10080 uint32_t shdr_status, shdr_add_status;
10081 union lpfc_sli4_cfg_shdr *shdr;
10085 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
10088 length = (sizeof(struct lpfc_mbx_cq_destroy) -
10089 sizeof(struct lpfc_sli4_cfg_mhdr));
10090 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10091 LPFC_MBOX_OPCODE_CQ_DESTROY,
10092 length, LPFC_SLI4_MBX_EMBED);
10093 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
10095 mbox->vport = cq->phba->pport;
10096 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10097 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
10098 /* The IOCTL status is embedded in the mailbox subheader. */
10099 shdr = (union lpfc_sli4_cfg_shdr *)
10100 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
10101 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10102 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10103 if (shdr_status || shdr_add_status || rc) {
10104 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10105 "2506 CQ_DESTROY mailbox failed with "
10106 "status x%x add_status x%x, mbx status x%x\n",
10107 shdr_status, shdr_add_status, rc);
10110 /* Remove cq from any list */
10111 list_del_init(&cq->list);
10112 mempool_free(mbox, cq->phba->mbox_mem_pool);
10117 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10118 * @qm: The queue structure associated with the queue to destroy.
10120 * This function destroys a queue, as detailed in @mq by sending an mailbox
10121 * command, specific to the type of queue, to the HBA.
10123 * The @mq struct is used to get the queue ID of the queue to destroy.
10125 * On success this function will return a zero. If the queue destroy mailbox
10126 * command fails this function will return ENXIO.
10129 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
10131 LPFC_MBOXQ_t *mbox;
10132 int rc, length, status = 0;
10133 uint32_t shdr_status, shdr_add_status;
10134 union lpfc_sli4_cfg_shdr *shdr;
10138 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
10141 length = (sizeof(struct lpfc_mbx_mq_destroy) -
10142 sizeof(struct lpfc_sli4_cfg_mhdr));
10143 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10144 LPFC_MBOX_OPCODE_MQ_DESTROY,
10145 length, LPFC_SLI4_MBX_EMBED);
10146 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
10148 mbox->vport = mq->phba->pport;
10149 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10150 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
10151 /* The IOCTL status is embedded in the mailbox subheader. */
10152 shdr = (union lpfc_sli4_cfg_shdr *)
10153 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
10154 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10155 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10156 if (shdr_status || shdr_add_status || rc) {
10157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10158 "2507 MQ_DESTROY mailbox failed with "
10159 "status x%x add_status x%x, mbx status x%x\n",
10160 shdr_status, shdr_add_status, rc);
10163 /* Remove mq from any list */
10164 list_del_init(&mq->list);
10165 mempool_free(mbox, mq->phba->mbox_mem_pool);
10170 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10171 * @wq: The queue structure associated with the queue to destroy.
10173 * This function destroys a queue, as detailed in @wq by sending an mailbox
10174 * command, specific to the type of queue, to the HBA.
10176 * The @wq struct is used to get the queue ID of the queue to destroy.
10178 * On success this function will return a zero. If the queue destroy mailbox
10179 * command fails this function will return ENXIO.
10182 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
10184 LPFC_MBOXQ_t *mbox;
10185 int rc, length, status = 0;
10186 uint32_t shdr_status, shdr_add_status;
10187 union lpfc_sli4_cfg_shdr *shdr;
10191 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
10194 length = (sizeof(struct lpfc_mbx_wq_destroy) -
10195 sizeof(struct lpfc_sli4_cfg_mhdr));
10196 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10197 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
10198 length, LPFC_SLI4_MBX_EMBED);
10199 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
10201 mbox->vport = wq->phba->pport;
10202 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10203 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
10204 shdr = (union lpfc_sli4_cfg_shdr *)
10205 &mbox->u.mqe.un.wq_destroy.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 "2508 WQ_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 wq from any list */
10216 list_del_init(&wq->list);
10217 mempool_free(mbox, wq->phba->mbox_mem_pool);
10222 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10223 * @rq: The queue structure associated with the queue to destroy.
10225 * This function destroys a queue, as detailed in @rq by sending an mailbox
10226 * command, specific to the type of queue, to the HBA.
10228 * The @rq 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_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10235 struct lpfc_queue *drq)
10237 LPFC_MBOXQ_t *mbox;
10238 int rc, length, status = 0;
10239 uint32_t shdr_status, shdr_add_status;
10240 union lpfc_sli4_cfg_shdr *shdr;
10244 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
10247 length = (sizeof(struct lpfc_mbx_rq_destroy) -
10248 sizeof(struct mbox_header));
10249 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10250 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
10251 length, LPFC_SLI4_MBX_EMBED);
10252 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10254 mbox->vport = hrq->phba->pport;
10255 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10256 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
10257 /* The IOCTL status is embedded in the mailbox subheader. */
10258 shdr = (union lpfc_sli4_cfg_shdr *)
10259 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10260 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10261 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10262 if (shdr_status || shdr_add_status || rc) {
10263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10264 "2509 RQ_DESTROY mailbox failed with "
10265 "status x%x add_status x%x, mbx status x%x\n",
10266 shdr_status, shdr_add_status, rc);
10267 if (rc != MBX_TIMEOUT)
10268 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10271 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10273 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
10274 shdr = (union lpfc_sli4_cfg_shdr *)
10275 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10276 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10277 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10278 if (shdr_status || shdr_add_status || rc) {
10279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10280 "2510 RQ_DESTROY mailbox failed with "
10281 "status x%x add_status x%x, mbx status x%x\n",
10282 shdr_status, shdr_add_status, rc);
10285 list_del_init(&hrq->list);
10286 list_del_init(&drq->list);
10287 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10292 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10293 * @phba: The virtual port for which this call being executed.
10294 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10295 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10296 * @xritag: the xritag that ties this io to the SGL pages.
10298 * This routine will post the sgl pages for the IO that has the xritag
10299 * that is in the iocbq structure. The xritag is assigned during iocbq
10300 * creation and persists for as long as the driver is loaded.
10301 * if the caller has fewer than 256 scatter gather segments to map then
10302 * pdma_phys_addr1 should be 0.
10303 * If the caller needs to map more than 256 scatter gather segment then
10304 * pdma_phys_addr1 should be a valid physical address.
10305 * physical address for SGLs must be 64 byte aligned.
10306 * If you are going to map 2 SGL's then the first one must have 256 entries
10307 * the second sgl can have between 1 and 256 entries.
10311 * -ENXIO, -ENOMEM - Failure
10314 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
10315 dma_addr_t pdma_phys_addr0,
10316 dma_addr_t pdma_phys_addr1,
10319 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
10320 LPFC_MBOXQ_t *mbox;
10322 uint32_t shdr_status, shdr_add_status;
10323 union lpfc_sli4_cfg_shdr *shdr;
10325 if (xritag == NO_XRI) {
10326 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10327 "0364 Invalid param:\n");
10331 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10335 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10336 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
10337 sizeof(struct lpfc_mbx_post_sgl_pages) -
10338 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
10340 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
10341 &mbox->u.mqe.un.post_sgl_pages;
10342 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
10343 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
10345 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
10346 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
10347 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
10348 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
10350 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
10351 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
10352 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
10353 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
10354 if (!phba->sli4_hba.intr_enable)
10355 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10357 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10358 /* The IOCTL status is embedded in the mailbox subheader. */
10359 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
10360 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10361 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10362 if (rc != MBX_TIMEOUT)
10363 mempool_free(mbox, phba->mbox_mem_pool);
10364 if (shdr_status || shdr_add_status || rc) {
10365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10366 "2511 POST_SGL mailbox failed with "
10367 "status x%x add_status x%x, mbx status x%x\n",
10368 shdr_status, shdr_add_status, rc);
10374 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10375 * @phba: The virtual port for which this call being executed.
10377 * This routine will remove all of the sgl pages registered with the hba.
10381 * -ENXIO, -ENOMEM - Failure
10384 lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
10386 LPFC_MBOXQ_t *mbox;
10388 uint32_t shdr_status, shdr_add_status;
10389 union lpfc_sli4_cfg_shdr *shdr;
10391 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10395 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10396 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
10397 LPFC_SLI4_MBX_EMBED);
10398 if (!phba->sli4_hba.intr_enable)
10399 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10401 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10402 /* The IOCTL status is embedded in the mailbox subheader. */
10403 shdr = (union lpfc_sli4_cfg_shdr *)
10404 &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
10405 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10406 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10407 if (rc != MBX_TIMEOUT)
10408 mempool_free(mbox, phba->mbox_mem_pool);
10409 if (shdr_status || shdr_add_status || rc) {
10410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10411 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10412 "status x%x add_status x%x, mbx status x%x\n",
10413 shdr_status, shdr_add_status, rc);
10420 * lpfc_sli4_next_xritag - Get an xritag for the io
10421 * @phba: Pointer to HBA context object.
10423 * This function gets an xritag for the iocb. If there is no unused xritag
10424 * it will return 0xffff.
10425 * The function returns the allocated xritag if successful, else returns zero.
10426 * Zero is not a valid xritag.
10427 * The caller is not required to hold any lock.
10430 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
10434 spin_lock_irq(&phba->hbalock);
10435 xritag = phba->sli4_hba.next_xri;
10436 if ((xritag != (uint16_t) -1) && xritag <
10437 (phba->sli4_hba.max_cfg_param.max_xri
10438 + phba->sli4_hba.max_cfg_param.xri_base)) {
10439 phba->sli4_hba.next_xri++;
10440 phba->sli4_hba.max_cfg_param.xri_used++;
10441 spin_unlock_irq(&phba->hbalock);
10444 spin_unlock_irq(&phba->hbalock);
10445 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10446 "2004 Failed to allocate XRI.last XRITAG is %d"
10447 " Max XRI is %d, Used XRI is %d\n",
10448 phba->sli4_hba.next_xri,
10449 phba->sli4_hba.max_cfg_param.max_xri,
10450 phba->sli4_hba.max_cfg_param.xri_used);
10455 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10456 * @phba: pointer to lpfc hba data structure.
10458 * This routine is invoked to post a block of driver's sgl pages to the
10459 * HBA using non-embedded mailbox command. No Lock is held. This routine
10460 * is only called when the driver is loading and after all IO has been
10464 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
10466 struct lpfc_sglq *sglq_entry;
10467 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10468 struct sgl_page_pairs *sgl_pg_pairs;
10470 LPFC_MBOXQ_t *mbox;
10471 uint32_t reqlen, alloclen, pg_pairs;
10473 uint16_t xritag_start = 0;
10474 int els_xri_cnt, rc = 0;
10475 uint32_t shdr_status, shdr_add_status;
10476 union lpfc_sli4_cfg_shdr *shdr;
10478 /* The number of sgls to be posted */
10479 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
10481 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
10482 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10483 if (reqlen > PAGE_SIZE) {
10484 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10485 "2559 Block sgl registration required DMA "
10486 "size (%d) great than a page\n", reqlen);
10489 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10492 "2560 Failed to allocate mbox cmd memory\n");
10496 /* Allocate DMA memory and set up the non-embedded mailbox command */
10497 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10498 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10499 LPFC_SLI4_MBX_NEMBED);
10501 if (alloclen < reqlen) {
10502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10503 "0285 Allocated DMA memory size (%d) is "
10504 "less than the requested DMA memory "
10505 "size (%d)\n", alloclen, reqlen);
10506 lpfc_sli4_mbox_cmd_free(phba, mbox);
10509 /* Get the first SGE entry from the non-embedded DMA memory */
10510 viraddr = mbox->sge_array->addr[0];
10512 /* Set up the SGL pages in the non-embedded DMA pages */
10513 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10514 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10516 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
10517 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
10518 /* Set up the sge entry */
10519 sgl_pg_pairs->sgl_pg0_addr_lo =
10520 cpu_to_le32(putPaddrLow(sglq_entry->phys));
10521 sgl_pg_pairs->sgl_pg0_addr_hi =
10522 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
10523 sgl_pg_pairs->sgl_pg1_addr_lo =
10524 cpu_to_le32(putPaddrLow(0));
10525 sgl_pg_pairs->sgl_pg1_addr_hi =
10526 cpu_to_le32(putPaddrHigh(0));
10527 /* Keep the first xritag on the list */
10529 xritag_start = sglq_entry->sli4_xritag;
10532 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10533 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
10534 /* Perform endian conversion if necessary */
10535 sgl->word0 = cpu_to_le32(sgl->word0);
10537 if (!phba->sli4_hba.intr_enable)
10538 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10540 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10541 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10543 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10544 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10545 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10546 if (rc != MBX_TIMEOUT)
10547 lpfc_sli4_mbox_cmd_free(phba, mbox);
10548 if (shdr_status || shdr_add_status || rc) {
10549 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10550 "2513 POST_SGL_BLOCK mailbox command failed "
10551 "status x%x add_status x%x mbx status x%x\n",
10552 shdr_status, shdr_add_status, rc);
10559 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10560 * @phba: pointer to lpfc hba data structure.
10561 * @sblist: pointer to scsi buffer list.
10562 * @count: number of scsi buffers on the list.
10564 * This routine is invoked to post a block of @count scsi sgl pages from a
10565 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10570 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
10573 struct lpfc_scsi_buf *psb;
10574 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10575 struct sgl_page_pairs *sgl_pg_pairs;
10577 LPFC_MBOXQ_t *mbox;
10578 uint32_t reqlen, alloclen, pg_pairs;
10580 uint16_t xritag_start = 0;
10582 uint32_t shdr_status, shdr_add_status;
10583 dma_addr_t pdma_phys_bpl1;
10584 union lpfc_sli4_cfg_shdr *shdr;
10586 /* Calculate the requested length of the dma memory */
10587 reqlen = cnt * sizeof(struct sgl_page_pairs) +
10588 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10589 if (reqlen > PAGE_SIZE) {
10590 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10591 "0217 Block sgl registration required DMA "
10592 "size (%d) great than a page\n", reqlen);
10595 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10598 "0283 Failed to allocate mbox cmd memory\n");
10602 /* Allocate DMA memory and set up the non-embedded mailbox command */
10603 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10604 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10605 LPFC_SLI4_MBX_NEMBED);
10607 if (alloclen < reqlen) {
10608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10609 "2561 Allocated DMA memory size (%d) is "
10610 "less than the requested DMA memory "
10611 "size (%d)\n", alloclen, reqlen);
10612 lpfc_sli4_mbox_cmd_free(phba, mbox);
10615 /* Get the first SGE entry from the non-embedded DMA memory */
10616 viraddr = mbox->sge_array->addr[0];
10618 /* Set up the SGL pages in the non-embedded DMA pages */
10619 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10620 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10623 list_for_each_entry(psb, sblist, list) {
10624 /* Set up the sge entry */
10625 sgl_pg_pairs->sgl_pg0_addr_lo =
10626 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
10627 sgl_pg_pairs->sgl_pg0_addr_hi =
10628 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
10629 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
10630 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
10632 pdma_phys_bpl1 = 0;
10633 sgl_pg_pairs->sgl_pg1_addr_lo =
10634 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
10635 sgl_pg_pairs->sgl_pg1_addr_hi =
10636 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
10637 /* Keep the first xritag on the list */
10639 xritag_start = psb->cur_iocbq.sli4_xritag;
10643 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10644 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
10645 /* Perform endian conversion if necessary */
10646 sgl->word0 = cpu_to_le32(sgl->word0);
10648 if (!phba->sli4_hba.intr_enable)
10649 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10651 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10652 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10654 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10655 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10656 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10657 if (rc != MBX_TIMEOUT)
10658 lpfc_sli4_mbox_cmd_free(phba, mbox);
10659 if (shdr_status || shdr_add_status || rc) {
10660 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10661 "2564 POST_SGL_BLOCK mailbox command failed "
10662 "status x%x add_status x%x mbx status x%x\n",
10663 shdr_status, shdr_add_status, rc);
10670 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
10671 * @phba: pointer to lpfc_hba struct that the frame was received on
10672 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10674 * This function checks the fields in the @fc_hdr to see if the FC frame is a
10675 * valid type of frame that the LPFC driver will handle. This function will
10676 * return a zero if the frame is a valid frame or a non zero value when the
10677 * frame does not pass the check.
10680 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
10682 char *rctl_names[] = FC_RCTL_NAMES_INIT;
10683 char *type_names[] = FC_TYPE_NAMES_INIT;
10684 struct fc_vft_header *fc_vft_hdr;
10686 switch (fc_hdr->fh_r_ctl) {
10687 case FC_RCTL_DD_UNCAT: /* uncategorized information */
10688 case FC_RCTL_DD_SOL_DATA: /* solicited data */
10689 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
10690 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
10691 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
10692 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
10693 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
10694 case FC_RCTL_DD_CMD_STATUS: /* command status */
10695 case FC_RCTL_ELS_REQ: /* extended link services request */
10696 case FC_RCTL_ELS_REP: /* extended link services reply */
10697 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
10698 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
10699 case FC_RCTL_BA_NOP: /* basic link service NOP */
10700 case FC_RCTL_BA_ABTS: /* basic link service abort */
10701 case FC_RCTL_BA_RMC: /* remove connection */
10702 case FC_RCTL_BA_ACC: /* basic accept */
10703 case FC_RCTL_BA_RJT: /* basic reject */
10704 case FC_RCTL_BA_PRMT:
10705 case FC_RCTL_ACK_1: /* acknowledge_1 */
10706 case FC_RCTL_ACK_0: /* acknowledge_0 */
10707 case FC_RCTL_P_RJT: /* port reject */
10708 case FC_RCTL_F_RJT: /* fabric reject */
10709 case FC_RCTL_P_BSY: /* port busy */
10710 case FC_RCTL_F_BSY: /* fabric busy to data frame */
10711 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
10712 case FC_RCTL_LCR: /* link credit reset */
10713 case FC_RCTL_END: /* end */
10715 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
10716 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10717 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
10718 return lpfc_fc_frame_check(phba, fc_hdr);
10722 switch (fc_hdr->fh_type) {
10733 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10734 "2538 Received frame rctl:%s type:%s\n",
10735 rctl_names[fc_hdr->fh_r_ctl],
10736 type_names[fc_hdr->fh_type]);
10739 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
10740 "2539 Dropped frame rctl:%s type:%s\n",
10741 rctl_names[fc_hdr->fh_r_ctl],
10742 type_names[fc_hdr->fh_type]);
10747 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
10748 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10750 * This function processes the FC header to retrieve the VFI from the VF
10751 * header, if one exists. This function will return the VFI if one exists
10752 * or 0 if no VSAN Header exists.
10755 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
10757 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10759 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
10761 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
10765 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
10766 * @phba: Pointer to the HBA structure to search for the vport on
10767 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10768 * @fcfi: The FC Fabric ID that the frame came from
10770 * This function searches the @phba for a vport that matches the content of the
10771 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
10772 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
10773 * returns the matching vport pointer or NULL if unable to match frame to a
10776 static struct lpfc_vport *
10777 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
10780 struct lpfc_vport **vports;
10781 struct lpfc_vport *vport = NULL;
10783 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
10784 fc_hdr->fh_d_id[1] << 8 |
10785 fc_hdr->fh_d_id[2]);
10787 vports = lpfc_create_vport_work_array(phba);
10788 if (vports != NULL)
10789 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
10790 if (phba->fcf.fcfi == fcfi &&
10791 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
10792 vports[i]->fc_myDID == did) {
10797 lpfc_destroy_vport_work_array(phba, vports);
10802 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
10803 * @vport: The vport to work on.
10805 * This function updates the receive sequence time stamp for this vport. The
10806 * receive sequence time stamp indicates the time that the last frame of the
10807 * the sequence that has been idle for the longest amount of time was received.
10808 * the driver uses this time stamp to indicate if any received sequences have
10812 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
10814 struct lpfc_dmabuf *h_buf;
10815 struct hbq_dmabuf *dmabuf = NULL;
10817 /* get the oldest sequence on the rcv list */
10818 h_buf = list_get_first(&vport->rcv_buffer_list,
10819 struct lpfc_dmabuf, list);
10822 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10823 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
10827 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
10828 * @vport: The vport that the received sequences were sent to.
10830 * This function cleans up all outstanding received sequences. This is called
10831 * by the driver when a link event or user action invalidates all the received
10835 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
10837 struct lpfc_dmabuf *h_buf, *hnext;
10838 struct lpfc_dmabuf *d_buf, *dnext;
10839 struct hbq_dmabuf *dmabuf = NULL;
10841 /* start with the oldest sequence on the rcv list */
10842 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10843 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10844 list_del_init(&dmabuf->hbuf.list);
10845 list_for_each_entry_safe(d_buf, dnext,
10846 &dmabuf->dbuf.list, list) {
10847 list_del_init(&d_buf->list);
10848 lpfc_in_buf_free(vport->phba, d_buf);
10850 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
10855 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
10856 * @vport: The vport that the received sequences were sent to.
10858 * This function determines whether any received sequences have timed out by
10859 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
10860 * indicates that there is at least one timed out sequence this routine will
10861 * go through the received sequences one at a time from most inactive to most
10862 * active to determine which ones need to be cleaned up. Once it has determined
10863 * that a sequence needs to be cleaned up it will simply free up the resources
10864 * without sending an abort.
10867 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
10869 struct lpfc_dmabuf *h_buf, *hnext;
10870 struct lpfc_dmabuf *d_buf, *dnext;
10871 struct hbq_dmabuf *dmabuf = NULL;
10872 unsigned long timeout;
10873 int abort_count = 0;
10875 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10876 vport->rcv_buffer_time_stamp);
10877 if (list_empty(&vport->rcv_buffer_list) ||
10878 time_before(jiffies, timeout))
10880 /* start with the oldest sequence on the rcv list */
10881 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10882 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10883 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10884 dmabuf->time_stamp);
10885 if (time_before(jiffies, timeout))
10888 list_del_init(&dmabuf->hbuf.list);
10889 list_for_each_entry_safe(d_buf, dnext,
10890 &dmabuf->dbuf.list, list) {
10891 list_del_init(&d_buf->list);
10892 lpfc_in_buf_free(vport->phba, d_buf);
10894 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
10897 lpfc_update_rcv_time_stamp(vport);
10901 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
10902 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
10904 * This function searches through the existing incomplete sequences that have
10905 * been sent to this @vport. If the frame matches one of the incomplete
10906 * sequences then the dbuf in the @dmabuf is added to the list of frames that
10907 * make up that sequence. If no sequence is found that matches this frame then
10908 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
10909 * This function returns a pointer to the first dmabuf in the sequence list that
10910 * the frame was linked to.
10912 static struct hbq_dmabuf *
10913 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
10915 struct fc_frame_header *new_hdr;
10916 struct fc_frame_header *temp_hdr;
10917 struct lpfc_dmabuf *d_buf;
10918 struct lpfc_dmabuf *h_buf;
10919 struct hbq_dmabuf *seq_dmabuf = NULL;
10920 struct hbq_dmabuf *temp_dmabuf = NULL;
10922 INIT_LIST_HEAD(&dmabuf->dbuf.list);
10923 dmabuf->time_stamp = jiffies;
10924 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
10925 /* Use the hdr_buf to find the sequence that this frame belongs to */
10926 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
10927 temp_hdr = (struct fc_frame_header *)h_buf->virt;
10928 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
10929 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
10930 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
10932 /* found a pending sequence that matches this frame */
10933 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10938 * This indicates first frame received for this sequence.
10939 * Queue the buffer on the vport's rcv_buffer_list.
10941 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
10942 lpfc_update_rcv_time_stamp(vport);
10945 temp_hdr = seq_dmabuf->hbuf.virt;
10946 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
10947 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
10948 list_del_init(&seq_dmabuf->hbuf.list);
10949 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
10950 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
10951 lpfc_update_rcv_time_stamp(vport);
10954 /* move this sequence to the tail to indicate a young sequence */
10955 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
10956 seq_dmabuf->time_stamp = jiffies;
10957 lpfc_update_rcv_time_stamp(vport);
10958 if (list_empty(&seq_dmabuf->dbuf.list)) {
10959 temp_hdr = dmabuf->hbuf.virt;
10960 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
10963 /* find the correct place in the sequence to insert this frame */
10964 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
10965 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
10966 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
10968 * If the frame's sequence count is greater than the frame on
10969 * the list then insert the frame right after this frame
10971 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
10972 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
10973 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
10981 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
10982 * @vport: pointer to a vitural port
10983 * @dmabuf: pointer to a dmabuf that describes the FC sequence
10985 * This function tries to abort from the partially assembed sequence, described
10986 * by the information from basic abbort @dmabuf. It checks to see whether such
10987 * partially assembled sequence held by the driver. If so, it shall free up all
10988 * the frames from the partially assembled sequence.
10991 * true -- if there is matching partially assembled sequence present and all
10992 * the frames freed with the sequence;
10993 * false -- if there is no matching partially assembled sequence present so
10994 * nothing got aborted in the lower layer driver
10997 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
10998 struct hbq_dmabuf *dmabuf)
11000 struct fc_frame_header *new_hdr;
11001 struct fc_frame_header *temp_hdr;
11002 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
11003 struct hbq_dmabuf *seq_dmabuf = NULL;
11005 /* Use the hdr_buf to find the sequence that matches this frame */
11006 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11007 INIT_LIST_HEAD(&dmabuf->hbuf.list);
11008 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11009 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11010 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11011 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11012 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11013 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11015 /* found a pending sequence that matches this frame */
11016 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11020 /* Free up all the frames from the partially assembled sequence */
11022 list_for_each_entry_safe(d_buf, n_buf,
11023 &seq_dmabuf->dbuf.list, list) {
11024 list_del_init(&d_buf->list);
11025 lpfc_in_buf_free(vport->phba, d_buf);
11033 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11034 * @phba: Pointer to HBA context object.
11035 * @cmd_iocbq: pointer to the command iocbq structure.
11036 * @rsp_iocbq: pointer to the response iocbq structure.
11038 * This function handles the sequence abort accept iocb command complete
11039 * event. It properly releases the memory allocated to the sequence abort
11043 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
11044 struct lpfc_iocbq *cmd_iocbq,
11045 struct lpfc_iocbq *rsp_iocbq)
11048 lpfc_sli_release_iocbq(phba, cmd_iocbq);
11052 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11053 * @phba: Pointer to HBA context object.
11054 * @fc_hdr: pointer to a FC frame header.
11056 * This function sends a basic accept to a previous unsol sequence abort
11057 * event after aborting the sequence handling.
11060 lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
11061 struct fc_frame_header *fc_hdr)
11063 struct lpfc_iocbq *ctiocb = NULL;
11064 struct lpfc_nodelist *ndlp;
11065 uint16_t oxid, rxid;
11066 uint32_t sid, fctl;
11069 if (!lpfc_is_link_up(phba))
11072 sid = sli4_sid_from_fc_hdr(fc_hdr);
11073 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
11074 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
11076 ndlp = lpfc_findnode_did(phba->pport, sid);
11078 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11079 "1268 Find ndlp returned NULL for oxid:x%x "
11080 "SID:x%x\n", oxid, sid);
11084 /* Allocate buffer for acc iocb */
11085 ctiocb = lpfc_sli_get_iocbq(phba);
11089 /* Extract the F_CTL field from FC_HDR */
11090 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
11092 icmd = &ctiocb->iocb;
11093 icmd->un.xseq64.bdl.bdeSize = 0;
11094 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
11095 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11096 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
11097 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
11099 /* Fill in the rest of iocb fields */
11100 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
11101 icmd->ulpBdeCount = 0;
11103 icmd->ulpClass = CLASS3;
11104 icmd->ulpContext = ndlp->nlp_rpi;
11106 ctiocb->iocb_cmpl = NULL;
11107 ctiocb->vport = phba->pport;
11108 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
11110 if (fctl & FC_FC_EX_CTX) {
11111 /* ABTS sent by responder to CT exchange, construction
11112 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11113 * field and RX_ID from ABTS for RX_ID field.
11115 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
11116 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
11117 ctiocb->sli4_xritag = oxid;
11119 /* ABTS sent by initiator to CT exchange, construction
11120 * of BA_ACC will need to allocate a new XRI as for the
11121 * XRI_TAG and RX_ID fields.
11123 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
11124 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
11125 ctiocb->sli4_xritag = NO_XRI;
11127 bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
11129 /* Xmit CT abts accept on exchange <xid> */
11130 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11131 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11132 CMD_XMIT_BLS_RSP64_CX, phba->link_state);
11133 lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
11137 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11138 * @vport: Pointer to the vport on which this sequence was received
11139 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11141 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11142 * receive sequence is only partially assembed by the driver, it shall abort
11143 * the partially assembled frames for the sequence. Otherwise, if the
11144 * unsolicited receive sequence has been completely assembled and passed to
11145 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11146 * unsolicited sequence has been aborted. After that, it will issue a basic
11147 * accept to accept the abort.
11150 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
11151 struct hbq_dmabuf *dmabuf)
11153 struct lpfc_hba *phba = vport->phba;
11154 struct fc_frame_header fc_hdr;
11158 /* Make a copy of fc_hdr before the dmabuf being released */
11159 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
11160 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
11162 if (fctl & FC_FC_EX_CTX) {
11164 * ABTS sent by responder to exchange, just free the buffer
11166 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11169 * ABTS sent by initiator to exchange, need to do cleanup
11171 /* Try to abort partially assembled seq */
11172 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
11174 /* Send abort to ULP if partially seq abort failed */
11175 if (abts_par == false)
11176 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
11178 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11180 /* Send basic accept (BA_ACC) to the abort requester */
11181 lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
11185 * lpfc_seq_complete - Indicates if a sequence is complete
11186 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11188 * This function checks the sequence, starting with the frame described by
11189 * @dmabuf, to see if all the frames associated with this sequence are present.
11190 * the frames associated with this sequence are linked to the @dmabuf using the
11191 * dbuf list. This function looks for two major things. 1) That the first frame
11192 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11193 * set. 3) That there are no holes in the sequence count. The function will
11194 * return 1 when the sequence is complete, otherwise it will return 0.
11197 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
11199 struct fc_frame_header *hdr;
11200 struct lpfc_dmabuf *d_buf;
11201 struct hbq_dmabuf *seq_dmabuf;
11205 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11206 /* make sure first fame of sequence has a sequence count of zero */
11207 if (hdr->fh_seq_cnt != seq_count)
11209 fctl = (hdr->fh_f_ctl[0] << 16 |
11210 hdr->fh_f_ctl[1] << 8 |
11212 /* If last frame of sequence we can return success. */
11213 if (fctl & FC_FC_END_SEQ)
11215 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
11216 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11217 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11218 /* If there is a hole in the sequence count then fail. */
11219 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
11221 fctl = (hdr->fh_f_ctl[0] << 16 |
11222 hdr->fh_f_ctl[1] << 8 |
11224 /* If last frame of sequence we can return success. */
11225 if (fctl & FC_FC_END_SEQ)
11232 * lpfc_prep_seq - Prep sequence for ULP processing
11233 * @vport: Pointer to the vport on which this sequence was received
11234 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11236 * This function takes a sequence, described by a list of frames, and creates
11237 * a list of iocbq structures to describe the sequence. This iocbq list will be
11238 * used to issue to the generic unsolicited sequence handler. This routine
11239 * returns a pointer to the first iocbq in the list. If the function is unable
11240 * to allocate an iocbq then it throw out the received frames that were not
11241 * able to be described and return a pointer to the first iocbq. If unable to
11242 * allocate any iocbqs (including the first) this function will return NULL.
11244 static struct lpfc_iocbq *
11245 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
11247 struct lpfc_dmabuf *d_buf, *n_buf;
11248 struct lpfc_iocbq *first_iocbq, *iocbq;
11249 struct fc_frame_header *fc_hdr;
11251 struct ulp_bde64 *pbde;
11253 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11254 /* remove from receive buffer list */
11255 list_del_init(&seq_dmabuf->hbuf.list);
11256 lpfc_update_rcv_time_stamp(vport);
11257 /* get the Remote Port's SID */
11258 sid = sli4_sid_from_fc_hdr(fc_hdr);
11259 /* Get an iocbq struct to fill in. */
11260 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
11262 /* Initialize the first IOCB. */
11263 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
11264 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
11265 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
11266 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
11267 first_iocbq->iocb.unsli3.rcvsli3.vpi =
11268 vport->vpi + vport->phba->vpi_base;
11269 /* put the first buffer into the first IOCBq */
11270 first_iocbq->context2 = &seq_dmabuf->dbuf;
11271 first_iocbq->context3 = NULL;
11272 first_iocbq->iocb.ulpBdeCount = 1;
11273 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11274 LPFC_DATA_BUF_SIZE;
11275 first_iocbq->iocb.un.rcvels.remoteID = sid;
11276 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11277 bf_get(lpfc_rcqe_length,
11278 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11280 iocbq = first_iocbq;
11282 * Each IOCBq can have two Buffers assigned, so go through the list
11283 * of buffers for this sequence and save two buffers in each IOCBq
11285 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
11287 lpfc_in_buf_free(vport->phba, d_buf);
11290 if (!iocbq->context3) {
11291 iocbq->context3 = d_buf;
11292 iocbq->iocb.ulpBdeCount++;
11293 pbde = (struct ulp_bde64 *)
11294 &iocbq->iocb.unsli3.sli3Words[4];
11295 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
11296 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11297 bf_get(lpfc_rcqe_length,
11298 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11300 iocbq = lpfc_sli_get_iocbq(vport->phba);
11303 first_iocbq->iocb.ulpStatus =
11304 IOSTAT_FCP_RSP_ERROR;
11305 first_iocbq->iocb.un.ulpWord[4] =
11306 IOERR_NO_RESOURCES;
11308 lpfc_in_buf_free(vport->phba, d_buf);
11311 iocbq->context2 = d_buf;
11312 iocbq->context3 = NULL;
11313 iocbq->iocb.ulpBdeCount = 1;
11314 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11315 LPFC_DATA_BUF_SIZE;
11316 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11317 bf_get(lpfc_rcqe_length,
11318 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11319 iocbq->iocb.un.rcvels.remoteID = sid;
11320 list_add_tail(&iocbq->list, &first_iocbq->list);
11323 return first_iocbq;
11327 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
11328 struct hbq_dmabuf *seq_dmabuf)
11330 struct fc_frame_header *fc_hdr;
11331 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
11332 struct lpfc_hba *phba = vport->phba;
11334 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11335 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
11337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11338 "2707 Ring %d handler: Failed to allocate "
11339 "iocb Rctl x%x Type x%x received\n",
11341 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11344 if (!lpfc_complete_unsol_iocb(phba,
11345 &phba->sli.ring[LPFC_ELS_RING],
11346 iocbq, fc_hdr->fh_r_ctl,
11348 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11349 "2540 Ring %d handler: unexpected Rctl "
11350 "x%x Type x%x received\n",
11352 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11354 /* Free iocb created in lpfc_prep_seq */
11355 list_for_each_entry_safe(curr_iocb, next_iocb,
11356 &iocbq->list, list) {
11357 list_del_init(&curr_iocb->list);
11358 lpfc_sli_release_iocbq(phba, curr_iocb);
11360 lpfc_sli_release_iocbq(phba, iocbq);
11364 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11365 * @phba: Pointer to HBA context object.
11367 * This function is called with no lock held. This function processes all
11368 * the received buffers and gives it to upper layers when a received buffer
11369 * indicates that it is the final frame in the sequence. The interrupt
11370 * service routine processes received buffers at interrupt contexts and adds
11371 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11372 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11373 * appropriate receive function when the final frame in a sequence is received.
11376 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
11377 struct hbq_dmabuf *dmabuf)
11379 struct hbq_dmabuf *seq_dmabuf;
11380 struct fc_frame_header *fc_hdr;
11381 struct lpfc_vport *vport;
11384 /* Process each received buffer */
11385 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11386 /* check to see if this a valid type of frame */
11387 if (lpfc_fc_frame_check(phba, fc_hdr)) {
11388 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11391 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
11392 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
11393 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
11394 /* throw out the frame */
11395 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11398 /* Handle the basic abort sequence (BA_ABTS) event */
11399 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
11400 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
11404 /* Link this frame */
11405 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
11407 /* unable to add frame to vport - throw it out */
11408 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11411 /* If not last frame in sequence continue processing frames. */
11412 if (!lpfc_seq_complete(seq_dmabuf)) {
11414 * When saving off frames post a new one and mark this
11415 * frame to be freed when it is finished.
11417 lpfc_sli_hbqbuf_fill_hbqs(phba, LPFC_ELS_HBQ, 1);
11420 /* Send the complete sequence to the upper layer protocol */
11421 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
11425 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11426 * @phba: pointer to lpfc hba data structure.
11428 * This routine is invoked to post rpi header templates to the
11429 * HBA consistent with the SLI-4 interface spec. This routine
11430 * posts a PAGE_SIZE memory region to the port to hold up to
11431 * PAGE_SIZE modulo 64 rpi context headers.
11433 * This routine does not require any locks. It's usage is expected
11434 * to be driver load or reset recovery when the driver is
11439 * EIO - The mailbox failed to complete successfully.
11440 * When this error occurs, the driver is not guaranteed
11441 * to have any rpi regions posted to the device and
11442 * must either attempt to repost the regions or take a
11446 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
11448 struct lpfc_rpi_hdr *rpi_page;
11451 /* Post all rpi memory regions to the port. */
11452 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
11453 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
11454 if (rc != MBX_SUCCESS) {
11455 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11456 "2008 Error %d posting all rpi "
11467 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11468 * @phba: pointer to lpfc hba data structure.
11469 * @rpi_page: pointer to the rpi memory region.
11471 * This routine is invoked to post a single rpi header to the
11472 * HBA consistent with the SLI-4 interface spec. This memory region
11473 * maps up to 64 rpi context regions.
11477 * ENOMEM - No available memory
11478 * EIO - The mailbox failed to complete successfully.
11481 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
11483 LPFC_MBOXQ_t *mboxq;
11484 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
11487 uint32_t shdr_status, shdr_add_status;
11488 union lpfc_sli4_cfg_shdr *shdr;
11490 /* The port is notified of the header region via a mailbox command. */
11491 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11493 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11494 "2001 Unable to allocate memory for issuing "
11495 "SLI_CONFIG_SPECIAL mailbox command\n");
11499 /* Post all rpi memory regions to the port. */
11500 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
11501 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11502 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11503 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
11504 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
11505 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
11506 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
11507 hdr_tmpl, rpi_page->page_count);
11508 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
11509 rpi_page->start_rpi);
11510 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
11511 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
11512 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11513 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
11514 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11515 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11516 if (rc != MBX_TIMEOUT)
11517 mempool_free(mboxq, phba->mbox_mem_pool);
11518 if (shdr_status || shdr_add_status || rc) {
11519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11520 "2514 POST_RPI_HDR mailbox failed with "
11521 "status x%x add_status x%x, mbx status x%x\n",
11522 shdr_status, shdr_add_status, rc);
11529 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11530 * @phba: pointer to lpfc hba data structure.
11532 * This routine is invoked to post rpi header templates to the
11533 * HBA consistent with the SLI-4 interface spec. This routine
11534 * posts a PAGE_SIZE memory region to the port to hold up to
11535 * PAGE_SIZE modulo 64 rpi context headers.
11538 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
11539 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11542 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
11545 uint16_t max_rpi, rpi_base, rpi_limit;
11546 uint16_t rpi_remaining;
11547 struct lpfc_rpi_hdr *rpi_hdr;
11549 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
11550 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
11551 rpi_limit = phba->sli4_hba.next_rpi;
11554 * The valid rpi range is not guaranteed to be zero-based. Start
11555 * the search at the rpi_base as reported by the port.
11557 spin_lock_irq(&phba->hbalock);
11558 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
11559 if (rpi >= rpi_limit || rpi < rpi_base)
11560 rpi = LPFC_RPI_ALLOC_ERROR;
11562 set_bit(rpi, phba->sli4_hba.rpi_bmask);
11563 phba->sli4_hba.max_cfg_param.rpi_used++;
11564 phba->sli4_hba.rpi_count++;
11568 * Don't try to allocate more rpi header regions if the device limit
11569 * on available rpis max has been exhausted.
11571 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
11572 (phba->sli4_hba.rpi_count >= max_rpi)) {
11573 spin_unlock_irq(&phba->hbalock);
11578 * If the driver is running low on rpi resources, allocate another
11579 * page now. Note that the next_rpi value is used because
11580 * it represents how many are actually in use whereas max_rpi notes
11581 * how many are supported max by the device.
11583 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
11584 phba->sli4_hba.rpi_count;
11585 spin_unlock_irq(&phba->hbalock);
11586 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
11587 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
11589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11590 "2002 Error Could not grow rpi "
11593 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
11601 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11602 * @phba: pointer to lpfc hba data structure.
11604 * This routine is invoked to release an rpi to the pool of
11605 * available rpis maintained by the driver.
11608 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11610 spin_lock_irq(&phba->hbalock);
11611 clear_bit(rpi, phba->sli4_hba.rpi_bmask);
11612 phba->sli4_hba.rpi_count--;
11613 phba->sli4_hba.max_cfg_param.rpi_used--;
11614 spin_unlock_irq(&phba->hbalock);
11618 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11619 * @phba: pointer to lpfc hba data structure.
11621 * This routine is invoked to remove the memory region that
11622 * provided rpi via a bitmask.
11625 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
11627 kfree(phba->sli4_hba.rpi_bmask);
11631 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
11632 * @phba: pointer to lpfc hba data structure.
11634 * This routine is invoked to remove the memory region that
11635 * provided rpi via a bitmask.
11638 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
11640 LPFC_MBOXQ_t *mboxq;
11641 struct lpfc_hba *phba = ndlp->phba;
11644 /* The port is notified of the header region via a mailbox command. */
11645 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11649 /* Post all rpi memory regions to the port. */
11650 lpfc_resume_rpi(mboxq, ndlp);
11651 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11652 if (rc == MBX_NOT_FINISHED) {
11653 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11654 "2010 Resume RPI Mailbox failed "
11655 "status %d, mbxStatus x%x\n", rc,
11656 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11657 mempool_free(mboxq, phba->mbox_mem_pool);
11664 * lpfc_sli4_init_vpi - Initialize a vpi with the port
11665 * @phba: pointer to lpfc hba data structure.
11666 * @vpi: vpi value to activate with the port.
11668 * This routine is invoked to activate a vpi with the
11669 * port when the host intends to use vports with a
11674 * -Evalue otherwise
11677 lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
11679 LPFC_MBOXQ_t *mboxq;
11681 int retval = MBX_SUCCESS;
11686 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11689 lpfc_init_vpi(phba, mboxq, vpi);
11690 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
11691 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11692 if (rc != MBX_SUCCESS) {
11693 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11694 "2022 INIT VPI Mailbox failed "
11695 "status %d, mbxStatus x%x\n", rc,
11696 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11699 if (rc != MBX_TIMEOUT)
11700 mempool_free(mboxq, phba->mbox_mem_pool);
11706 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
11707 * @phba: pointer to lpfc hba data structure.
11708 * @mboxq: Pointer to mailbox object.
11710 * This routine is invoked to manually add a single FCF record. The caller
11711 * must pass a completely initialized FCF_Record. This routine takes
11712 * care of the nonembedded mailbox operations.
11715 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11718 union lpfc_sli4_cfg_shdr *shdr;
11719 uint32_t shdr_status, shdr_add_status;
11721 virt_addr = mboxq->sge_array->addr[0];
11722 /* The IOCTL status is embedded in the mailbox subheader. */
11723 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
11724 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11725 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11727 if ((shdr_status || shdr_add_status) &&
11728 (shdr_status != STATUS_FCF_IN_USE))
11729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11730 "2558 ADD_FCF_RECORD mailbox failed with "
11731 "status x%x add_status x%x\n",
11732 shdr_status, shdr_add_status);
11734 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11738 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
11739 * @phba: pointer to lpfc hba data structure.
11740 * @fcf_record: pointer to the initialized fcf record to add.
11742 * This routine is invoked to manually add a single FCF record. The caller
11743 * must pass a completely initialized FCF_Record. This routine takes
11744 * care of the nonembedded mailbox operations.
11747 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
11750 LPFC_MBOXQ_t *mboxq;
11753 dma_addr_t phys_addr;
11754 struct lpfc_mbx_sge sge;
11755 uint32_t alloc_len, req_len;
11758 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11761 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
11765 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
11768 /* Allocate DMA memory and set up the non-embedded mailbox command */
11769 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11770 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
11771 req_len, LPFC_SLI4_MBX_NEMBED);
11772 if (alloc_len < req_len) {
11773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11774 "2523 Allocated DMA memory size (x%x) is "
11775 "less than the requested DMA memory "
11776 "size (x%x)\n", alloc_len, req_len);
11777 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11782 * Get the first SGE entry from the non-embedded DMA memory. This
11783 * routine only uses a single SGE.
11785 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11786 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
11787 virt_addr = mboxq->sge_array->addr[0];
11789 * Configure the FCF record for FCFI 0. This is the driver's
11790 * hardcoded default and gets used in nonFIP mode.
11792 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
11793 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
11794 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
11797 * Copy the fcf_index and the FCF Record Data. The data starts after
11798 * the FCoE header plus word10. The data copy needs to be endian
11801 bytep += sizeof(uint32_t);
11802 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
11803 mboxq->vport = phba->pport;
11804 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
11805 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11806 if (rc == MBX_NOT_FINISHED) {
11807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11808 "2515 ADD_FCF_RECORD mailbox failed with "
11809 "status 0x%x\n", rc);
11810 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11819 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
11820 * @phba: pointer to lpfc hba data structure.
11821 * @fcf_record: pointer to the fcf record to write the default data.
11822 * @fcf_index: FCF table entry index.
11824 * This routine is invoked to build the driver's default FCF record. The
11825 * values used are hardcoded. This routine handles memory initialization.
11829 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
11830 struct fcf_record *fcf_record,
11831 uint16_t fcf_index)
11833 memset(fcf_record, 0, sizeof(struct fcf_record));
11834 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
11835 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
11836 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
11837 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
11838 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
11839 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
11840 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
11841 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
11842 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
11843 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
11844 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
11845 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
11846 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
11847 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
11848 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
11849 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
11850 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
11851 /* Set the VLAN bit map */
11852 if (phba->valid_vlan) {
11853 fcf_record->vlan_bitmap[phba->vlan_id / 8]
11854 = 1 << (phba->vlan_id % 8);
11859 * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
11860 * @phba: pointer to lpfc hba data structure.
11861 * @fcf_index: FCF table entry offset.
11863 * This routine is invoked to read up to @fcf_num of FCF record from the
11864 * device starting with the given @fcf_index.
11867 lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
11870 LPFC_MBOXQ_t *mboxq;
11872 dma_addr_t phys_addr;
11874 struct lpfc_mbx_sge sge;
11875 uint32_t alloc_len, req_len;
11876 struct lpfc_mbx_read_fcf_tbl *read_fcf;
11878 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
11879 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11881 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11882 "2000 Failed to allocate mbox for "
11888 req_len = sizeof(struct fcf_record) +
11889 sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
11891 /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
11892 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11893 LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
11894 LPFC_SLI4_MBX_NEMBED);
11896 if (alloc_len < req_len) {
11897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11898 "0291 Allocated DMA memory size (x%x) is "
11899 "less than the requested DMA memory "
11900 "size (x%x)\n", alloc_len, req_len);
11905 /* Get the first SGE entry from the non-embedded DMA memory. This
11906 * routine only uses a single SGE.
11908 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11909 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
11910 virt_addr = mboxq->sge_array->addr[0];
11911 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
11913 /* Set up command fields */
11914 bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
11915 /* Perform necessary endian conversion */
11916 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
11917 lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
11918 mboxq->vport = phba->pport;
11919 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
11920 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11921 if (rc == MBX_NOT_FINISHED) {
11924 spin_lock_irq(&phba->hbalock);
11925 phba->hba_flag |= FCF_DISC_INPROGRESS;
11926 spin_unlock_irq(&phba->hbalock);
11932 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11933 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
11934 spin_lock_irq(&phba->hbalock);
11935 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
11936 spin_unlock_irq(&phba->hbalock);
11942 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
11943 * @phba: pointer to lpfc hba data structure.
11945 * This function read region 23 and parse TLV for port status to
11946 * decide if the user disaled the port. If the TLV indicates the
11947 * port is disabled, the hba_flag is set accordingly.
11950 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
11952 LPFC_MBOXQ_t *pmb = NULL;
11954 uint8_t *rgn23_data = NULL;
11955 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
11958 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11960 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11961 "2600 lpfc_sli_read_serdes_param failed to"
11962 " allocate mailbox memory\n");
11967 /* Get adapter Region 23 data */
11968 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
11973 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
11974 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
11976 if (rc != MBX_SUCCESS) {
11977 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11978 "2601 lpfc_sli_read_link_ste failed to"
11979 " read config region 23 rc 0x%x Status 0x%x\n",
11980 rc, mb->mbxStatus);
11981 mb->un.varDmp.word_cnt = 0;
11984 * dump mem may return a zero when finished or we got a
11985 * mailbox error, either way we are done.
11987 if (mb->un.varDmp.word_cnt == 0)
11989 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
11990 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
11992 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
11993 rgn23_data + offset,
11994 mb->un.varDmp.word_cnt);
11995 offset += mb->un.varDmp.word_cnt;
11996 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
11998 data_size = offset;
12004 /* Check the region signature first */
12005 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
12006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12007 "2619 Config region 23 has bad signature\n");
12012 /* Check the data structure version */
12013 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
12014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12015 "2620 Config region 23 has bad version\n");
12020 /* Parse TLV entries in the region */
12021 while (offset < data_size) {
12022 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
12025 * If the TLV is not driver specific TLV or driver id is
12026 * not linux driver id, skip the record.
12028 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
12029 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
12030 (rgn23_data[offset + 3] != 0)) {
12031 offset += rgn23_data[offset + 1] * 4 + 4;
12035 /* Driver found a driver specific TLV in the config region */
12036 sub_tlv_len = rgn23_data[offset + 1] * 4;
12041 * Search for configured port state sub-TLV.
12043 while ((offset < data_size) &&
12044 (tlv_offset < sub_tlv_len)) {
12045 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
12050 if (rgn23_data[offset] != PORT_STE_TYPE) {
12051 offset += rgn23_data[offset + 1] * 4 + 4;
12052 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
12056 /* This HBA contains PORT_STE configured */
12057 if (!rgn23_data[offset + 2])
12058 phba->hba_flag |= LINK_DISABLED;
12065 mempool_free(pmb, phba->mbox_mem_pool);