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scsi: lpfc: Convert abort handling to SLI-3 and SLI-4 handlers
This patch reworks the abort interfaces such that SLI-3 retains the iocb-based formatting and completions and SLI-4 now uses native WQEs and completion routines. The following changes are made: - The code is refactored from a confusing 2 routine sequence of xx_abort_iotag_issue(), which creates/formats and abort cmd, and xx_issue_abort_tag(), which then issues and handles the completion of the abort cmd - into a single interface of xx_issue_abort_iotag(). The new interface will determine whether SLI-3 or SLI-4 and then call the appropriate handler. A completion handler can now be specified to address the differences in completion handling. Note: original code is all iocb based, with SLI-4 converting to SLI-3 for the SCSI/ELS path, and NVMe natively using wqes. - The SLI-3 side is refactored: The older iocb-base lpfc_sli_issue_abort_iotag() routine is combined with the logic of lpfc_sli_abort_iotag_issue() as well as the iocb-specific code in lpfc_abort_handler() and lpfc_sli_abort_iocb() to create the new single SLI-3 abort routine that formats and issues the iocb. - The SLI-4 side is refactored and added to: The native WQE abort code in NVMe is moved to the new SLI-4 issue_abort_iotag() routine. Items in SCSI that set fields not set by NVMe is migrated into the new routine. Thus the routine supports NVMe and SCSI initiators. The nvmet block (target) formats the abort slightly different (like the old NVMe initiator) thus it has its own prep routine stolen from NVMe initiator and it retains the current code it has for issuing the WQE (does not use the commonized routine the initiators do). SLI-4 completion handlers were also added. - lpfc_abort_handler now becomes a wrapper that determines whether SLI-3 or SLI-4 and calls the proper abort handler. Link: https://lore.kernel.org/r/20201115192646.12977-16-james.smart@broadcom.com Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
parent
96e209be6e
commit
db7531d2b3
@ -5927,7 +5927,7 @@ lpfc_bsg_timeout(struct bsg_job *job)
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}
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}
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if (list_empty(&completions))
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lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
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lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb, NULL);
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spin_unlock_irqrestore(&phba->hbalock, flags);
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if (!list_empty(&completions)) {
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lpfc_sli_cancel_iocbs(phba, &completions,
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@ -5964,7 +5964,7 @@ lpfc_bsg_timeout(struct bsg_job *job)
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}
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}
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if (list_empty(&completions))
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lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
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lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb, NULL);
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spin_unlock_irqrestore(&phba->hbalock, flags);
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if (!list_empty(&completions)) {
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lpfc_sli_cancel_iocbs(phba, &completions,
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@ -324,6 +324,8 @@ int lpfc_sli_issue_fcp_io(struct lpfc_hba *phba, uint32_t ring_number,
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struct lpfc_iocbq *piocb, uint32_t flag);
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int lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
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struct lpfc_iocbq *pwqe);
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int lpfc_sli4_issue_abort_iotag(struct lpfc_hba *phba,
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struct lpfc_iocbq *cmdiocb, void *cmpl);
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struct lpfc_sglq *__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xri);
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struct lpfc_sglq *__lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba,
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struct lpfc_iocbq *piocbq);
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@ -348,7 +350,7 @@ int lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *, uint32_t);
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void lpfc_sli_hbqbuf_free_all(struct lpfc_hba *);
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int lpfc_sli_hbq_size(void);
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int lpfc_sli_issue_abort_iotag(struct lpfc_hba *, struct lpfc_sli_ring *,
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struct lpfc_iocbq *);
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struct lpfc_iocbq *, void *);
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int lpfc_sli_sum_iocb(struct lpfc_vport *, uint16_t, uint64_t, lpfc_ctx_cmd);
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int lpfc_sli_abort_iocb(struct lpfc_vport *, struct lpfc_sli_ring *, uint16_t,
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uint64_t, lpfc_ctx_cmd);
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@ -371,6 +373,8 @@ int lpfc_sli_issue_iocb_wait(struct lpfc_hba *, uint32_t,
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uint32_t);
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void lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *, struct lpfc_iocbq *,
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struct lpfc_iocbq *);
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void lpfc_sli4_abort_fcp_cmpl(struct lpfc_hba *h, struct lpfc_iocbq *i,
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struct lpfc_wcqe_complete *w);
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void lpfc_sli_free_hbq(struct lpfc_hba *, struct hbq_dmabuf *);
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@ -595,7 +599,6 @@ void lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *ncmd);
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void lpfc_wqe_cmd_template(void);
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void lpfc_nvmet_cmd_template(void);
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void lpfc_nvme_cancel_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn);
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void lpfc_nvme_prep_abort_wqe(struct lpfc_iocbq *pwqeq, u16 xritag, u8 opt);
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extern int lpfc_enable_nvmet_cnt;
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extern unsigned long long lpfc_enable_nvmet[];
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extern int lpfc_no_hba_reset_cnt;
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@ -1424,7 +1424,8 @@ lpfc_els_abort_flogi(struct lpfc_hba *phba)
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if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
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ndlp = (struct lpfc_nodelist *)(iocb->context1);
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if (ndlp && (ndlp->nlp_DID == Fabric_DID))
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lpfc_sli_issue_abort_iotag(phba, pring, iocb);
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lpfc_sli_issue_abort_iotag(phba, pring, iocb,
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NULL);
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}
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}
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spin_unlock_irq(&phba->hbalock);
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@ -8135,7 +8136,7 @@ lpfc_els_timeout_handler(struct lpfc_vport *vport)
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remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
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spin_lock_irq(&phba->hbalock);
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list_del_init(&piocb->dlist);
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lpfc_sli_issue_abort_iotag(phba, pring, piocb);
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lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL);
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spin_unlock_irq(&phba->hbalock);
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}
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@ -8235,7 +8236,7 @@ lpfc_els_flush_cmd(struct lpfc_vport *vport)
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list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
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spin_lock_irqsave(&phba->hbalock, iflags);
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list_del_init(&piocb->dlist);
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lpfc_sli_issue_abort_iotag(phba, pring, piocb);
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lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL);
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spin_unlock_irqrestore(&phba->hbalock, iflags);
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}
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if (!list_empty(&abort_list))
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@ -5610,7 +5610,7 @@ lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
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icmd = &iocb->iocb;
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if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
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icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
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lpfc_sli_issue_abort_iotag(phba, pring, iocb);
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lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
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}
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}
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spin_unlock_irq(&phba->hbalock);
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@ -247,7 +247,7 @@ lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
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list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
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spin_lock_irq(&phba->hbalock);
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list_del_init(&iocb->dlist);
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lpfc_sli_issue_abort_iotag(phba, pring, iocb);
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lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
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spin_unlock_irq(&phba->hbalock);
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}
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@ -62,46 +62,6 @@ lpfc_release_nvme_buf(struct lpfc_hba *, struct lpfc_io_buf *);
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static struct nvme_fc_port_template lpfc_nvme_template;
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/**
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* lpfc_nvme_prep_abort_wqe - set up 'abort' work queue entry.
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* @pwqeq: Pointer to command iocb.
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* @xritag: Tag that uniqely identifies the local exchange resource.
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* @opt: Option bits -
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* bit 0 = inhibit sending abts on the link
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*
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* This function is called with hbalock held.
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**/
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void
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lpfc_nvme_prep_abort_wqe(struct lpfc_iocbq *pwqeq, u16 xritag, u8 opt)
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{
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union lpfc_wqe128 *wqe = &pwqeq->wqe;
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/* WQEs are reused. Clear stale data and set key fields to
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* zero like ia, iaab, iaar, xri_tag, and ctxt_tag.
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*/
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memset(wqe, 0, sizeof(*wqe));
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if (opt & INHIBIT_ABORT)
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bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
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/* Abort specified xri tag, with the mask deliberately zeroed */
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bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
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bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
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/* Abort the IO associated with this outstanding exchange ID. */
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wqe->abort_cmd.wqe_com.abort_tag = xritag;
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/* iotag for the wqe completion. */
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bf_set(wqe_reqtag, &wqe->abort_cmd.wqe_com, pwqeq->iotag);
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bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
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bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
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bf_set(wqe_cmd_type, &wqe->abort_cmd.wqe_com, OTHER_COMMAND);
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bf_set(wqe_wqec, &wqe->abort_cmd.wqe_com, 1);
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bf_set(wqe_cqid, &wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
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}
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/**
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* lpfc_nvme_create_queue -
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* @pnvme_lport: Transport localport that LS is to be issued from
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@ -766,7 +726,7 @@ __lpfc_nvme_ls_abort(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
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spin_unlock(&pring->ring_lock);
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if (foundit)
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lpfc_sli_issue_abort_iotag(phba, pring, wqe);
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lpfc_sli_issue_abort_iotag(phba, pring, wqe, NULL);
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spin_unlock_irq(&phba->hbalock);
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if (foundit)
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@ -1772,7 +1732,6 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
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struct lpfc_vport *vport;
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struct lpfc_hba *phba;
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struct lpfc_io_buf *lpfc_nbuf;
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struct lpfc_iocbq *abts_buf;
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struct lpfc_iocbq *nvmereq_wqe;
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struct lpfc_nvme_fcpreq_priv *freqpriv;
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unsigned long flags;
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@ -1883,42 +1842,23 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
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goto out_unlock;
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}
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abts_buf = __lpfc_sli_get_iocbq(phba);
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if (!abts_buf) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
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"6136 No available abort wqes. Skipping "
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"Abts req for nvme_fcreq x%px xri x%x\n",
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pnvme_fcreq, nvmereq_wqe->sli4_xritag);
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goto out_unlock;
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}
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ret_val = lpfc_sli4_issue_abort_iotag(phba, nvmereq_wqe,
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lpfc_nvme_abort_fcreq_cmpl);
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/* Ready - mark outstanding as aborted by driver. */
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nvmereq_wqe->iocb_flag |= LPFC_DRIVER_ABORTED;
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lpfc_nvme_prep_abort_wqe(abts_buf, nvmereq_wqe->sli4_xritag, 0);
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/* ABTS WQE must go to the same WQ as the WQE to be aborted */
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abts_buf->iocb_flag |= LPFC_IO_NVME;
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abts_buf->hba_wqidx = nvmereq_wqe->hba_wqidx;
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abts_buf->vport = vport;
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abts_buf->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
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ret_val = lpfc_sli4_issue_wqe(phba, lpfc_nbuf->hdwq, abts_buf);
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spin_unlock(&lpfc_nbuf->buf_lock);
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spin_unlock_irqrestore(&phba->hbalock, flags);
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if (ret_val) {
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if (ret_val != WQE_SUCCESS) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
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"6137 Failed abts issue_wqe with status x%x "
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"for nvme_fcreq x%px.\n",
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ret_val, pnvme_fcreq);
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lpfc_sli_release_iocbq(phba, abts_buf);
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return;
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}
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lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS,
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"6138 Transport Abort NVME Request Issued for "
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"ox_id x%x on reqtag x%x\n",
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nvmereq_wqe->sli4_xritag,
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abts_buf->iotag);
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"ox_id x%x\n",
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nvmereq_wqe->sli4_xritag);
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return;
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out_unlock:
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@ -3327,6 +3327,46 @@ lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba,
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return 1;
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}
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/**
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* lpfc_nvmet_prep_abort_wqe - set up 'abort' work queue entry.
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* @pwqeq: Pointer to command iocb.
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* @xritag: Tag that uniqely identifies the local exchange resource.
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* @opt: Option bits -
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* bit 0 = inhibit sending abts on the link
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*
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* This function is called with hbalock held.
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**/
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void
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lpfc_nvmet_prep_abort_wqe(struct lpfc_iocbq *pwqeq, u16 xritag, u8 opt)
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{
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union lpfc_wqe128 *wqe = &pwqeq->wqe;
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/* WQEs are reused. Clear stale data and set key fields to
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* zero like ia, iaab, iaar, xri_tag, and ctxt_tag.
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*/
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memset(wqe, 0, sizeof(*wqe));
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if (opt & INHIBIT_ABORT)
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bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
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/* Abort specified xri tag, with the mask deliberately zeroed */
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bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
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bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
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/* Abort the I/O associated with this outstanding exchange ID. */
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wqe->abort_cmd.wqe_com.abort_tag = xritag;
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/* iotag for the wqe completion. */
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bf_set(wqe_reqtag, &wqe->abort_cmd.wqe_com, pwqeq->iotag);
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bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
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bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
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bf_set(wqe_cmd_type, &wqe->abort_cmd.wqe_com, OTHER_COMMAND);
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bf_set(wqe_wqec, &wqe->abort_cmd.wqe_com, 1);
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bf_set(wqe_cqid, &wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
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}
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static int
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lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba,
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struct lpfc_async_xchg_ctx *ctxp,
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@ -3422,7 +3462,7 @@ lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba,
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/* Ready - mark outstanding as aborted by driver. */
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abts_wqeq->iocb_flag |= LPFC_DRIVER_ABORTED;
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lpfc_nvme_prep_abort_wqe(abts_wqeq, ctxp->wqeq->sli4_xritag, opt);
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lpfc_nvmet_prep_abort_wqe(abts_wqeq, ctxp->wqeq->sli4_xritag, opt);
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/* ABTS WQE must go to the same WQ as the WQE to be aborted */
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abts_wqeq->hba_wqidx = ctxp->wqeq->hba_wqidx;
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@ -5385,11 +5385,10 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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struct lpfc_iocbq *iocb;
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struct lpfc_iocbq *abtsiocb;
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struct lpfc_io_buf *lpfc_cmd;
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IOCB_t *cmd, *icmd;
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int ret = SUCCESS, status = 0;
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struct lpfc_sli_ring *pring_s4 = NULL;
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struct lpfc_sli_ring *pring = NULL;
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int ret_val;
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unsigned long flags;
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DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
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@ -5466,64 +5465,22 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
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goto wait_for_cmpl;
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}
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abtsiocb = __lpfc_sli_get_iocbq(phba);
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if (abtsiocb == NULL) {
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ret = FAILED;
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goto out_unlock_ring;
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}
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/* Indicate the IO is being aborted by the driver. */
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iocb->iocb_flag |= LPFC_DRIVER_ABORTED;
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/*
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* The scsi command can not be in txq and it is in flight because the
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* pCmd is still pointig at the SCSI command we have to abort. There
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* is no need to search the txcmplq. Just send an abort to the FW.
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*/
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cmd = &iocb->iocb;
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icmd = &abtsiocb->iocb;
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icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
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icmd->un.acxri.abortContextTag = cmd->ulpContext;
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if (phba->sli_rev == LPFC_SLI_REV4)
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icmd->un.acxri.abortIoTag = iocb->sli4_xritag;
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else
|
||||
icmd->un.acxri.abortIoTag = cmd->ulpIoTag;
|
||||
|
||||
icmd->ulpLe = 1;
|
||||
icmd->ulpClass = cmd->ulpClass;
|
||||
|
||||
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
|
||||
abtsiocb->hba_wqidx = iocb->hba_wqidx;
|
||||
abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
|
||||
if (iocb->iocb_flag & LPFC_IO_FOF)
|
||||
abtsiocb->iocb_flag |= LPFC_IO_FOF;
|
||||
|
||||
if (lpfc_is_link_up(phba))
|
||||
icmd->ulpCommand = CMD_ABORT_XRI_CN;
|
||||
else
|
||||
icmd->ulpCommand = CMD_CLOSE_XRI_CN;
|
||||
|
||||
abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
|
||||
abtsiocb->vport = vport;
|
||||
lpfc_cmd->waitq = &waitq;
|
||||
if (phba->sli_rev == LPFC_SLI_REV4) {
|
||||
/* Note: both hbalock and ring_lock must be set here */
|
||||
ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
|
||||
abtsiocb, 0);
|
||||
spin_unlock(&pring_s4->ring_lock);
|
||||
ret_val = lpfc_sli4_issue_abort_iotag(phba, iocb,
|
||||
lpfc_sli4_abort_fcp_cmpl);
|
||||
} else {
|
||||
ret_val = __lpfc_sli_issue_iocb(phba, LPFC_FCP_RING,
|
||||
abtsiocb, 0);
|
||||
pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
|
||||
ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocb,
|
||||
lpfc_sli_abort_fcp_cmpl);
|
||||
}
|
||||
|
||||
if (ret_val == IOCB_ERROR) {
|
||||
if (ret_val != IOCB_SUCCESS) {
|
||||
/* Indicate the IO is not being aborted by the driver. */
|
||||
iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
|
||||
lpfc_cmd->waitq = NULL;
|
||||
spin_unlock(&lpfc_cmd->buf_lock);
|
||||
spin_unlock_irqrestore(&phba->hbalock, flags);
|
||||
lpfc_sli_release_iocbq(phba, abtsiocb);
|
||||
ret = FAILED;
|
||||
goto out;
|
||||
}
|
||||
@ -5537,7 +5494,10 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
|
||||
&phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ);
|
||||
|
||||
wait_for_cmpl:
|
||||
/* Wait for abort to complete */
|
||||
/*
|
||||
* iocb_flag is set to LPFC_DRIVER_ABORTED before we wait
|
||||
* for abort to complete.
|
||||
*/
|
||||
wait_event_timeout(waitq,
|
||||
(lpfc_cmd->pCmd != cmnd),
|
||||
msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000));
|
||||
|
@ -4209,7 +4209,7 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
||||
spin_lock_irq(&phba->hbalock);
|
||||
/* Next issue ABTS for everything on the txcmplq */
|
||||
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
|
||||
spin_unlock_irq(&phba->hbalock);
|
||||
} else {
|
||||
spin_lock_irq(&phba->hbalock);
|
||||
@ -4218,7 +4218,7 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
||||
|
||||
/* Next issue ABTS for everything on the txcmplq */
|
||||
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
|
||||
spin_unlock_irq(&phba->hbalock);
|
||||
}
|
||||
|
||||
@ -11181,7 +11181,8 @@ lpfc_sli_host_down(struct lpfc_vport *vport)
|
||||
&pring->txcmplq, list) {
|
||||
if (iocb->vport != vport)
|
||||
continue;
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb,
|
||||
NULL);
|
||||
}
|
||||
pring->flag = prev_pring_flag;
|
||||
}
|
||||
@ -11208,7 +11209,8 @@ lpfc_sli_host_down(struct lpfc_vport *vport)
|
||||
&pring->txcmplq, list) {
|
||||
if (iocb->vport != vport)
|
||||
continue;
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
||||
lpfc_sli_issue_abort_iotag(phba, pring, iocb,
|
||||
NULL);
|
||||
}
|
||||
pring->flag = prev_pring_flag;
|
||||
}
|
||||
@ -11605,27 +11607,29 @@ lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
||||
}
|
||||
|
||||
/**
|
||||
* lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
|
||||
* lpfc_sli_issue_abort_iotag - Abort function for a command iocb
|
||||
* @phba: Pointer to HBA context object.
|
||||
* @pring: Pointer to driver SLI ring object.
|
||||
* @cmdiocb: Pointer to driver command iocb object.
|
||||
* @cmpl: completion function.
|
||||
*
|
||||
* This function issues an abort iocb for the provided command iocb. In case
|
||||
* of unloading, the abort iocb will not be issued to commands on the ELS
|
||||
* ring. Instead, the callback function shall be changed to those commands
|
||||
* so that nothing happens when them finishes. This function is called with
|
||||
* hbalock held andno ring_lock held (SLI4). The function returns IOCB_SUCCESS
|
||||
* when the command iocb is an abort request.
|
||||
*
|
||||
* This function issues an abort iocb for the provided command iocb down to
|
||||
* the port. Other than the case the outstanding command iocb is an abort
|
||||
* request, this function issues abort out unconditionally. This function is
|
||||
* called with hbalock held. The function returns 0 when it fails due to
|
||||
* memory allocation failure or when the command iocb is an abort request.
|
||||
* The hbalock is asserted held in the code path calling this routine.
|
||||
**/
|
||||
static int
|
||||
lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
struct lpfc_iocbq *cmdiocb)
|
||||
int
|
||||
lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
struct lpfc_iocbq *cmdiocb, void *cmpl)
|
||||
{
|
||||
struct lpfc_vport *vport = cmdiocb->vport;
|
||||
struct lpfc_iocbq *abtsiocbp;
|
||||
IOCB_t *icmd = NULL;
|
||||
IOCB_t *iabt = NULL;
|
||||
int retval;
|
||||
int retval = IOCB_ERROR;
|
||||
unsigned long iflags;
|
||||
struct lpfc_nodelist *ndlp;
|
||||
|
||||
@ -11638,12 +11642,33 @@ lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
|
||||
icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
|
||||
(cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
|
||||
return 0;
|
||||
return IOCB_ABORTING;
|
||||
|
||||
if (!pring) {
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
|
||||
cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
else
|
||||
cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
return retval;
|
||||
}
|
||||
|
||||
/*
|
||||
* If we're unloading, don't abort iocb on the ELS ring, but change
|
||||
* the callback so that nothing happens when it finishes.
|
||||
*/
|
||||
if ((vport->load_flag & FC_UNLOADING) &&
|
||||
pring->ringno == LPFC_ELS_RING) {
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
|
||||
cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
else
|
||||
cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* issue ABTS for this IOCB based on iotag */
|
||||
abtsiocbp = __lpfc_sli_get_iocbq(phba);
|
||||
if (abtsiocbp == NULL)
|
||||
return 0;
|
||||
return IOCB_NORESOURCE;
|
||||
|
||||
/* This signals the response to set the correct status
|
||||
* before calling the completion handler
|
||||
@ -11655,7 +11680,8 @@ lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
iabt->un.acxri.abortContextTag = icmd->ulpContext;
|
||||
if (phba->sli_rev == LPFC_SLI_REV4) {
|
||||
iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
|
||||
iabt->un.acxri.abortContextTag = cmdiocb->iotag;
|
||||
if (pring->ringno == LPFC_ELS_RING)
|
||||
iabt->un.acxri.abortContextTag = cmdiocb->iotag;
|
||||
} else {
|
||||
iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
|
||||
if (pring->ringno == LPFC_ELS_RING) {
|
||||
@ -11668,8 +11694,10 @@ lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
|
||||
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
|
||||
abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FCP)
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FCP) {
|
||||
abtsiocbp->iocb_flag |= LPFC_IO_FCP;
|
||||
abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
|
||||
}
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FOF)
|
||||
abtsiocbp->iocb_flag |= LPFC_IO_FOF;
|
||||
|
||||
@ -11678,20 +11706,16 @@ lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
else
|
||||
iabt->ulpCommand = CMD_CLOSE_XRI_CN;
|
||||
|
||||
abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
|
||||
if (cmpl)
|
||||
abtsiocbp->iocb_cmpl = cmpl;
|
||||
else
|
||||
abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
|
||||
abtsiocbp->vport = vport;
|
||||
|
||||
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
||||
"0339 Abort xri x%x, original iotag x%x, "
|
||||
"abort cmd iotag x%x\n",
|
||||
iabt->un.acxri.abortIoTag,
|
||||
iabt->un.acxri.abortContextTag,
|
||||
abtsiocbp->iotag);
|
||||
|
||||
if (phba->sli_rev == LPFC_SLI_REV4) {
|
||||
pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
|
||||
if (unlikely(pring == NULL))
|
||||
return 0;
|
||||
goto abort_iotag_exit;
|
||||
/* Note: both hbalock and ring_lock need to be set here */
|
||||
spin_lock_irqsave(&pring->ring_lock, iflags);
|
||||
retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
|
||||
@ -11702,76 +11726,20 @@ lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
abtsiocbp, 0);
|
||||
}
|
||||
|
||||
if (retval)
|
||||
__lpfc_sli_release_iocbq(phba, abtsiocbp);
|
||||
|
||||
/*
|
||||
* Caller to this routine should check for IOCB_ERROR
|
||||
* and handle it properly. This routine no longer removes
|
||||
* iocb off txcmplq and call compl in case of IOCB_ERROR.
|
||||
*/
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* lpfc_sli_issue_abort_iotag - Abort function for a command iocb
|
||||
* @phba: Pointer to HBA context object.
|
||||
* @pring: Pointer to driver SLI ring object.
|
||||
* @cmdiocb: Pointer to driver command iocb object.
|
||||
*
|
||||
* This function issues an abort iocb for the provided command iocb. In case
|
||||
* of unloading, the abort iocb will not be issued to commands on the ELS
|
||||
* ring. Instead, the callback function shall be changed to those commands
|
||||
* so that nothing happens when them finishes. This function is called with
|
||||
* hbalock held. The function returns 0 when the command iocb is an abort
|
||||
* request.
|
||||
**/
|
||||
int
|
||||
lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
||||
struct lpfc_iocbq *cmdiocb)
|
||||
{
|
||||
struct lpfc_vport *vport = cmdiocb->vport;
|
||||
int retval = IOCB_ERROR;
|
||||
IOCB_t *icmd = NULL;
|
||||
|
||||
lockdep_assert_held(&phba->hbalock);
|
||||
|
||||
/*
|
||||
* There are certain command types we don't want to abort. And we
|
||||
* don't want to abort commands that are already in the process of
|
||||
* being aborted.
|
||||
*/
|
||||
icmd = &cmdiocb->iocb;
|
||||
if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
|
||||
icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
|
||||
(cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
|
||||
return 0;
|
||||
|
||||
if (!pring) {
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
|
||||
cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
else
|
||||
cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
goto abort_iotag_exit;
|
||||
}
|
||||
|
||||
/*
|
||||
* If we're unloading, don't abort iocb on the ELS ring, but change
|
||||
* the callback so that nothing happens when it finishes.
|
||||
*/
|
||||
if ((vport->load_flag & FC_UNLOADING) &&
|
||||
(pring->ringno == LPFC_ELS_RING)) {
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
|
||||
cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
else
|
||||
cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
|
||||
goto abort_iotag_exit;
|
||||
}
|
||||
|
||||
/* Now, we try to issue the abort to the cmdiocb out */
|
||||
retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
|
||||
|
||||
abort_iotag_exit:
|
||||
|
||||
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
||||
"0339 Abort xri x%x, original iotag x%x, "
|
||||
"abort cmd iotag x%x retval x%x\n",
|
||||
iabt->un.acxri.abortIoTag,
|
||||
iabt->un.acxri.abortContextTag,
|
||||
abtsiocbp->iotag, retval);
|
||||
|
||||
if (retval) {
|
||||
cmdiocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
|
||||
__lpfc_sli_release_iocbq(phba, abtsiocbp);
|
||||
}
|
||||
|
||||
/*
|
||||
* Caller to this routine should check for IOCB_ERROR
|
||||
* and handle it properly. This routine no longer removes
|
||||
@ -11915,6 +11883,33 @@ lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
|
||||
return sum;
|
||||
}
|
||||
|
||||
/**
|
||||
* lpfc_sli4_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
|
||||
* @phba: Pointer to HBA context object
|
||||
* @cmdiocb: Pointer to command iocb object.
|
||||
* @wcqe: pointer to the complete wcqe
|
||||
*
|
||||
* This function is called when an aborted FCP iocb completes. This
|
||||
* function is called by the ring event handler with no lock held.
|
||||
* This function frees the iocb. It is called for sli-4 adapters.
|
||||
**/
|
||||
void
|
||||
lpfc_sli4_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
||||
struct lpfc_wcqe_complete *wcqe)
|
||||
{
|
||||
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
||||
"3017 ABORT_XRI_CN completing on rpi x%x "
|
||||
"original iotag x%x, abort cmd iotag x%x "
|
||||
"status 0x%x, reason 0x%x\n",
|
||||
cmdiocb->iocb.un.acxri.abortContextTag,
|
||||
cmdiocb->iocb.un.acxri.abortIoTag,
|
||||
cmdiocb->iotag,
|
||||
(bf_get(lpfc_wcqe_c_status, wcqe)
|
||||
& LPFC_IOCB_STATUS_MASK),
|
||||
wcqe->parameter);
|
||||
lpfc_sli_release_iocbq(phba, cmdiocb);
|
||||
}
|
||||
|
||||
/**
|
||||
* lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
|
||||
* @phba: Pointer to HBA context object
|
||||
@ -11968,10 +11963,8 @@ lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
|
||||
{
|
||||
struct lpfc_hba *phba = vport->phba;
|
||||
struct lpfc_iocbq *iocbq;
|
||||
struct lpfc_iocbq *abtsiocb;
|
||||
struct lpfc_sli_ring *pring_s4;
|
||||
IOCB_t *cmd = NULL;
|
||||
int errcnt = 0, ret_val = 0;
|
||||
unsigned long iflags;
|
||||
int i;
|
||||
|
||||
/* all I/Os are in process of being flushed */
|
||||
@ -11985,62 +11978,12 @@ lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
|
||||
abort_cmd) != 0)
|
||||
continue;
|
||||
|
||||
/*
|
||||
* If the iocbq is already being aborted, don't take a second
|
||||
* action, but do count it.
|
||||
*/
|
||||
if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
|
||||
continue;
|
||||
|
||||
/* issue ABTS for this IOCB based on iotag */
|
||||
abtsiocb = lpfc_sli_get_iocbq(phba);
|
||||
if (abtsiocb == NULL) {
|
||||
spin_lock_irqsave(&phba->hbalock, iflags);
|
||||
ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocbq,
|
||||
lpfc_sli_abort_fcp_cmpl);
|
||||
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
||||
if (ret_val != IOCB_SUCCESS)
|
||||
errcnt++;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* indicate the IO is being aborted by the driver. */
|
||||
iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
|
||||
|
||||
cmd = &iocbq->iocb;
|
||||
abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
|
||||
abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
|
||||
if (phba->sli_rev == LPFC_SLI_REV4)
|
||||
abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
|
||||
else
|
||||
abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
|
||||
abtsiocb->iocb.ulpLe = 1;
|
||||
abtsiocb->iocb.ulpClass = cmd->ulpClass;
|
||||
abtsiocb->vport = vport;
|
||||
|
||||
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
|
||||
abtsiocb->hba_wqidx = iocbq->hba_wqidx;
|
||||
if (iocbq->iocb_flag & LPFC_IO_FCP)
|
||||
abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
|
||||
if (iocbq->iocb_flag & LPFC_IO_FOF)
|
||||
abtsiocb->iocb_flag |= LPFC_IO_FOF;
|
||||
|
||||
if (lpfc_is_link_up(phba))
|
||||
abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
|
||||
else
|
||||
abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
|
||||
|
||||
/* Setup callback routine and issue the command. */
|
||||
abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
|
||||
if (phba->sli_rev == LPFC_SLI_REV4) {
|
||||
pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
|
||||
if (!pring_s4)
|
||||
continue;
|
||||
ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
|
||||
abtsiocb, 0);
|
||||
} else
|
||||
ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
|
||||
abtsiocb, 0);
|
||||
if (ret_val == IOCB_ERROR) {
|
||||
lpfc_sli_release_iocbq(phba, abtsiocb);
|
||||
errcnt++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
return errcnt;
|
||||
@ -20551,6 +20494,88 @@ lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
|
||||
return WQE_ERROR;
|
||||
}
|
||||
|
||||
/**
|
||||
* lpfc_sli4_issue_abort_iotag - SLI-4 WQE init & issue for the Abort
|
||||
* @phba: Pointer to HBA context object.
|
||||
* @cmdiocb: Pointer to driver command iocb object.
|
||||
* @cmpl: completion function.
|
||||
*
|
||||
* Fill the appropriate fields for the abort WQE and call
|
||||
* internal routine lpfc_sli4_issue_wqe to send the WQE
|
||||
* This function is called with hbalock held and no ring_lock held.
|
||||
*
|
||||
* RETURNS 0 - SUCCESS
|
||||
**/
|
||||
|
||||
int
|
||||
lpfc_sli4_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
||||
void *cmpl)
|
||||
{
|
||||
struct lpfc_vport *vport = cmdiocb->vport;
|
||||
struct lpfc_iocbq *abtsiocb = NULL;
|
||||
union lpfc_wqe128 *abtswqe;
|
||||
struct lpfc_io_buf *lpfc_cmd;
|
||||
int retval = IOCB_ERROR;
|
||||
u16 xritag = cmdiocb->sli4_xritag;
|
||||
|
||||
/*
|
||||
* The scsi command can not be in txq and it is in flight because the
|
||||
* pCmd is still pointing at the SCSI command we have to abort. There
|
||||
* is no need to search the txcmplq. Just send an abort to the FW.
|
||||
*/
|
||||
|
||||
abtsiocb = __lpfc_sli_get_iocbq(phba);
|
||||
if (!abtsiocb)
|
||||
return WQE_NORESOURCE;
|
||||
|
||||
/* Indicate the IO is being aborted by the driver. */
|
||||
cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
|
||||
|
||||
abtswqe = &abtsiocb->wqe;
|
||||
memset(abtswqe, 0, sizeof(*abtswqe));
|
||||
|
||||
if (lpfc_is_link_up(phba))
|
||||
bf_set(abort_cmd_ia, &abtswqe->abort_cmd, 1);
|
||||
else
|
||||
bf_set(abort_cmd_ia, &abtswqe->abort_cmd, 0);
|
||||
bf_set(abort_cmd_criteria, &abtswqe->abort_cmd, T_XRI_TAG);
|
||||
abtswqe->abort_cmd.rsrvd5 = 0;
|
||||
abtswqe->abort_cmd.wqe_com.abort_tag = xritag;
|
||||
bf_set(wqe_reqtag, &abtswqe->abort_cmd.wqe_com, abtsiocb->iotag);
|
||||
bf_set(wqe_cmnd, &abtswqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
|
||||
bf_set(wqe_xri_tag, &abtswqe->generic.wqe_com, 0);
|
||||
bf_set(wqe_qosd, &abtswqe->abort_cmd.wqe_com, 1);
|
||||
bf_set(wqe_lenloc, &abtswqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
|
||||
bf_set(wqe_cmd_type, &abtswqe->abort_cmd.wqe_com, OTHER_COMMAND);
|
||||
|
||||
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
|
||||
abtsiocb->hba_wqidx = cmdiocb->hba_wqidx;
|
||||
abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FCP)
|
||||
abtsiocb->iocb_flag |= LPFC_IO_FCP;
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_NVME)
|
||||
abtsiocb->iocb_flag |= LPFC_IO_NVME;
|
||||
if (cmdiocb->iocb_flag & LPFC_IO_FOF)
|
||||
abtsiocb->iocb_flag |= LPFC_IO_FOF;
|
||||
abtsiocb->vport = vport;
|
||||
abtsiocb->wqe_cmpl = cmpl;
|
||||
|
||||
lpfc_cmd = container_of(cmdiocb, struct lpfc_io_buf, cur_iocbq);
|
||||
retval = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, abtsiocb);
|
||||
|
||||
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
|
||||
"0359 Abort xri x%x, original iotag x%x, "
|
||||
"abort cmd iotag x%x retval x%x\n",
|
||||
xritag, cmdiocb->iotag, abtsiocb->iotag, retval);
|
||||
|
||||
if (retval) {
|
||||
cmdiocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
|
||||
__lpfc_sli_release_iocbq(phba, abtsiocb);
|
||||
}
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
#ifdef LPFC_MXP_STAT
|
||||
/**
|
||||
* lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
|
||||
|
@ -130,6 +130,9 @@ struct lpfc_iocbq {
|
||||
#define IOCB_BUSY 1
|
||||
#define IOCB_ERROR 2
|
||||
#define IOCB_TIMEDOUT 3
|
||||
#define IOCB_ABORTED 4
|
||||
#define IOCB_ABORTING 5
|
||||
#define IOCB_NORESOURCE 6
|
||||
|
||||
#define SLI_WQE_RET_WQE 1 /* Return WQE if cmd ring full */
|
||||
|
||||
@ -138,6 +141,8 @@ struct lpfc_iocbq {
|
||||
#define WQE_ERROR 2
|
||||
#define WQE_TIMEDOUT 3
|
||||
#define WQE_ABORTED 4
|
||||
#define WQE_ABORTING 5
|
||||
#define WQE_NORESOURCE 6
|
||||
|
||||
#define LPFC_MBX_WAKE 1
|
||||
#define LPFC_MBX_IMED_UNREG 2
|
||||
|
Loading…
Reference in New Issue
Block a user