[SCSI] lpfc 8.3.38: Fixed NMI watch dog panic's when resetting the hba.
Fixed NMI watch dog panic's when resetting the hba. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
parent
d4a2618fa7
commit
0e9bb8d79c
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@ -692,7 +692,7 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
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*/
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for (i = 0; i < psli->num_rings; i++) {
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pring = &psli->ring[i];
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while (pring->txcmplq_cnt) {
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while (!list_empty(&pring->txcmplq)) {
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msleep(10);
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if (cnt++ > 500) { /* 5 secs */
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lpfc_printf_log(phba,
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@ -1559,7 +1559,7 @@ lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba)
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scsi_block_requests(shost);
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}
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while (pring->txcmplq_cnt) {
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while (!list_empty(&pring->txcmplq)) {
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if (i++ > 500) /* wait up to 5 seconds */
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break;
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msleep(10);
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@ -6225,7 +6225,7 @@ lpfc_els_timeout_handler(struct lpfc_vport *vport)
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spin_unlock_irq(&phba->hbalock);
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}
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if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt)
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if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
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mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
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}
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@ -6279,7 +6279,6 @@ lpfc_els_flush_cmd(struct lpfc_vport *vport)
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continue;
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list_move_tail(&piocb->list, &completions);
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pring->txq_cnt--;
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}
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list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
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@ -6339,7 +6338,6 @@ lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
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cmd->ulpCommand == CMD_ABORT_XRI_CN)
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continue;
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list_move_tail(&piocb->list, &completions);
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pring->txq_cnt--;
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}
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list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
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if (piocb->iocb_flag & LPFC_IO_LIBDFC)
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@ -8065,7 +8063,7 @@ lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
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rxid, 1);
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/* Check if TXQ queue needs to be serviced */
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if (pring->txq_cnt)
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if (!(list_empty(&pring->txq)))
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lpfc_worker_wake_up(phba);
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return;
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}
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@ -696,7 +696,8 @@ lpfc_work_done(struct lpfc_hba *phba)
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(status &
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HA_RXMASK));
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}
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if ((phba->sli_rev == LPFC_SLI_REV4) && pring->txq_cnt)
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if ((phba->sli_rev == LPFC_SLI_REV4) &
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(!list_empty(&pring->txq)))
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lpfc_drain_txq(phba);
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/*
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* Turn on Ring interrupts
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@ -4354,7 +4355,6 @@ lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
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with an error */
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list_move_tail(&iocb->list,
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&completions);
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pring->txq_cnt--;
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}
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}
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spin_unlock_irq(&phba->hbalock);
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@ -5055,7 +5055,6 @@ lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
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(icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
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list_move_tail(&iocb->list, &completions);
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pring->txq_cnt--;
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}
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}
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@ -839,7 +839,6 @@ lpfc_hba_down_post_s3(struct lpfc_hba *phba)
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* way, nothing should be on txcmplq as it will NEVER complete.
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*/
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list_splice_init(&pring->txcmplq, &completions);
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pring->txcmplq_cnt = 0;
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spin_unlock_irq(&phba->hbalock);
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/* Cancel all the IOCBs from the completions list */
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@ -226,7 +226,6 @@ lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
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if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
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/* It matches, so deque and call compl with anp error */
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list_move_tail(&iocb->list, &completions);
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pring->txq_cnt--;
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}
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}
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@ -732,7 +732,7 @@ lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba,
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psb = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
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psb->exch_busy = 0;
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spin_unlock_irqrestore(&phba->hbalock, iflag);
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if (pring->txq_cnt)
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if (!list_empty(&pring->txq))
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lpfc_worker_wake_up(phba);
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return;
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@ -4246,7 +4246,7 @@ static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba)
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unsigned long poll_tmo_expires =
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(jiffies + msecs_to_jiffies(phba->cfg_poll_tmo));
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if (phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt)
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if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
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mod_timer(&phba->fcp_poll_timer,
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poll_tmo_expires);
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}
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@ -1008,6 +1008,18 @@ __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
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else
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sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
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/*
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** This should have been removed from the txcmplq before calling
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** iocbq_release. The normal completion
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** path should have already done the list_del_init.
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*/
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if (unlikely(!list_empty(&iocbq->list))) {
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if (iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ)
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iocbq->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
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list_del_init(&iocbq->list);
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}
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if (sglq) {
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if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
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(sglq->state != SGL_XRI_ABORTED)) {
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@ -1024,7 +1036,7 @@ __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
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&phba->sli4_hba.lpfc_sgl_list);
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/* Check if TXQ queue needs to be serviced */
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if (pring->txq_cnt)
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if (!list_empty(&pring->txq))
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lpfc_worker_wake_up(phba);
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}
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}
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@ -1055,6 +1067,14 @@ __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
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{
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size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
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/*
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** This should have been removed from the txcmplq before calling
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** iocbq_release. The normal completion
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** path should have already done the list_del_init.
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*/
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if (unlikely(!list_empty(&iocbq->list)))
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list_del_init(&iocbq->list);
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/*
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* Clean all volatile data fields, preserve iotag and node struct.
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*/
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@ -1121,7 +1141,6 @@ lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
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while (!list_empty(iocblist)) {
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list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
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if (!piocb->iocb_cmpl)
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lpfc_sli_release_iocbq(phba, piocb);
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else {
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@ -1309,9 +1328,6 @@ lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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{
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list_add_tail(&piocb->list, &pring->txcmplq);
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piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
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pring->txcmplq_cnt++;
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if (pring->txcmplq_cnt > pring->txcmplq_max)
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pring->txcmplq_max = pring->txcmplq_cnt;
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if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
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(piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
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@ -1343,8 +1359,6 @@ lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
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struct lpfc_iocbq *cmd_iocb;
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list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
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if (cmd_iocb != NULL)
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pring->txq_cnt--;
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return cmd_iocb;
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}
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@ -1613,8 +1627,9 @@ lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
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* (c) link attention events can be processed (fcp ring only)
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* (d) IOCB processing is not blocked by the outstanding mbox command.
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*/
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if (pring->txq_cnt &&
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lpfc_is_link_up(phba) &&
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if (lpfc_is_link_up(phba) &&
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(!list_empty(&pring->txq)) &&
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(pring->ringno != phba->sli.fcp_ring ||
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phba->sli.sli_flag & LPFC_PROCESS_LA)) {
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@ -2611,7 +2626,6 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
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cmd_iocb = phba->sli.iocbq_lookup[iotag];
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list_del_init(&cmd_iocb->list);
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if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
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pring->txcmplq_cnt--;
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cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
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}
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return cmd_iocb;
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@ -2649,7 +2663,6 @@ lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
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/* remove from txcmpl queue list */
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list_del_init(&cmd_iocb->list);
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cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
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pring->txcmplq_cnt--;
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return cmd_iocb;
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}
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}
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@ -3498,7 +3511,6 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
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*/
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spin_lock_irq(&phba->hbalock);
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list_splice_init(&pring->txq, &completions);
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pring->txq_cnt = 0;
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/* Next issue ABTS for everything on the txcmplq */
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list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
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@ -3535,11 +3547,9 @@ lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
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spin_lock_irq(&phba->hbalock);
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/* Retrieve everything on txq */
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list_splice_init(&pring->txq, &txq);
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pring->txq_cnt = 0;
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/* Retrieve everything on the txcmplq */
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list_splice_init(&pring->txcmplq, &txcmplq);
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pring->txcmplq_cnt = 0;
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/* Indicate the I/O queues are flushed */
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phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
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@ -7614,7 +7624,6 @@ __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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{
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/* Insert the caller's iocb in the txq tail for later processing. */
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list_add_tail(&piocb->list, &pring->txq);
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pring->txq_cnt++;
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}
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/**
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@ -8386,7 +8395,7 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
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piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
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sglq = NULL;
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else {
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if (pring->txq_cnt) {
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if (!list_empty(&pring->txq)) {
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if (!(flag & SLI_IOCB_RET_IOCB)) {
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__lpfc_sli_ringtx_put(phba,
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pring, piocb);
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@ -9054,7 +9063,6 @@ lpfc_sli_host_down(struct lpfc_vport *vport)
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if (iocb->vport != vport)
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continue;
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list_move_tail(&iocb->list, &completions);
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pring->txq_cnt--;
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}
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/* Next issue ABTS for everything on the txcmplq */
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@ -9123,8 +9131,6 @@ lpfc_sli_hba_down(struct lpfc_hba *phba)
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* given to the FW yet.
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*/
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list_splice_init(&pring->txq, &completions);
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pring->txq_cnt = 0;
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}
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spin_unlock_irqrestore(&phba->hbalock, flags);
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@ -9965,6 +9971,9 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
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long timeleft, timeout_req = 0;
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int retval = IOCB_SUCCESS;
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uint32_t creg_val;
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struct lpfc_iocbq *iocb;
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int txq_cnt = 0;
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int txcmplq_cnt = 0;
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struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
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/*
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* If the caller has provided a response iocbq buffer, then context2
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@ -10012,9 +10021,17 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
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retval = IOCB_TIMEDOUT;
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}
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} else if (retval == IOCB_BUSY) {
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lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
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"2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
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phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
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if (phba->cfg_log_verbose & LOG_SLI) {
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list_for_each_entry(iocb, &pring->txq, list) {
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txq_cnt++;
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}
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list_for_each_entry(iocb, &pring->txcmplq, list) {
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txcmplq_cnt++;
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}
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lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
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"2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
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phba->iocb_cnt, txq_cnt, txcmplq_cnt);
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}
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return retval;
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} else {
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lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
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@ -11297,16 +11314,25 @@ lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
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struct lpfc_iocbq *irspiocbq;
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unsigned long iflags;
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struct lpfc_sli_ring *pring = cq->pring;
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int txq_cnt = 0;
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int txcmplq_cnt = 0;
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int fcp_txcmplq_cnt = 0;
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/* Get an irspiocbq for later ELS response processing use */
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irspiocbq = lpfc_sli_get_iocbq(phba);
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if (!irspiocbq) {
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if (!list_empty(&pring->txq))
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txq_cnt++;
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if (!list_empty(&pring->txcmplq))
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txcmplq_cnt++;
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if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
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fcp_txcmplq_cnt++;
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lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
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"0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
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"fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
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pring->txq_cnt, phba->iocb_cnt,
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phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
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phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
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txq_cnt, phba->iocb_cnt,
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fcp_txcmplq_cnt,
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txcmplq_cnt);
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return false;
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}
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@ -16244,14 +16270,19 @@ lpfc_drain_txq(struct lpfc_hba *phba)
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char *fail_msg = NULL;
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struct lpfc_sglq *sglq;
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union lpfc_wqe wqe;
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int txq_cnt = 0;
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spin_lock_irqsave(&phba->hbalock, iflags);
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if (pring->txq_cnt > pring->txq_max)
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pring->txq_max = pring->txq_cnt;
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list_for_each_entry(piocbq, &pring->txq, list) {
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txq_cnt++;
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}
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if (txq_cnt > pring->txq_max)
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pring->txq_max = txq_cnt;
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spin_unlock_irqrestore(&phba->hbalock, iflags);
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while (pring->txq_cnt) {
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while (!list_empty(&pring->txq)) {
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spin_lock_irqsave(&phba->hbalock, iflags);
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piocbq = lpfc_sli_ringtx_get(phba, pring);
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@ -16259,7 +16290,7 @@ lpfc_drain_txq(struct lpfc_hba *phba)
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spin_unlock_irqrestore(&phba->hbalock, iflags);
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lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
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"2823 txq empty and txq_cnt is %d\n ",
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pring->txq_cnt);
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txq_cnt);
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break;
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}
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sglq = __lpfc_sli_get_sglq(phba, piocbq);
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@ -16268,6 +16299,7 @@ lpfc_drain_txq(struct lpfc_hba *phba)
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spin_unlock_irqrestore(&phba->hbalock, iflags);
|
||||
break;
|
||||
}
|
||||
txq_cnt--;
|
||||
|
||||
/* The xri and iocb resources secured,
|
||||
* attempt to issue request
|
||||
|
@ -16299,5 +16331,5 @@ lpfc_drain_txq(struct lpfc_hba *phba)
|
|||
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
||||
IOERR_SLI_ABORTED);
|
||||
|
||||
return pring->txq_cnt;
|
||||
return txq_cnt;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue