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[SCSI] lpfc 8.3.15: BSG, Discovery, and Misc fixes

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- BSG interface related:
  - Fix node reference count if node is active
  - Warn if we're overwriting an active CT context

- Discovery related:
  - Clear "Ignore Reg Login" flag when purging mailbox queue
  - Pay attention to return code for fc_block_scsi_eh()
  - Stall device loss code if we're almost done when it fires
    (we're logged in, but PRLI is outstanding)

- Bugs
  - Correct DIF code for endianness issues
  - Correct where we had missed points to check txq on i/o
    completion/cleanup

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Smart
2010-07-14 15:30:54 -04:00
committed by James Bottomley
parent 75576bb9b2
commit 589a52d6a9
5 changed files with 76 additions and 19 deletions
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27
drivers/scsi/lpfc/lpfc_bsg.c
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@@ -962,10 +962,22 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
if (phba->sli_rev == LPFC_SLI_REV4) {
evt_dat->immed_dat = phba->ctx_idx;
phba->ctx_idx = (phba->ctx_idx + 1) % 64;
/* Provide warning for over-run of the ct_ctx array */
if (phba->ct_ctx[evt_dat->immed_dat].flags &
UNSOL_VALID)
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
"2717 CT context array entry "
"[%d] over-run: oxid:x%x, "
"sid:x%x\n", phba->ctx_idx,
phba->ct_ctx[
evt_dat->immed_dat].oxid,
phba->ct_ctx[
evt_dat->immed_dat].SID);
phba->ct_ctx[evt_dat->immed_dat].oxid =
piocbq->iocb.ulpContext;
phba->ct_ctx[evt_dat->immed_dat].SID =
piocbq->iocb.un.rcvels.remoteID;
phba->ct_ctx[evt_dat->immed_dat].flags = UNSOL_VALID;
} else
evt_dat->immed_dat = piocbq->iocb.ulpContext;
@@ -1323,6 +1335,21 @@ lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag,
rc = IOCB_ERROR;
goto issue_ct_rsp_exit;
}
/* Check if the ndlp is active */
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
rc = -IOCB_ERROR;
goto issue_ct_rsp_exit;
}
/* get a refernece count so the ndlp doesn't go away while
* we respond
*/
if (!lpfc_nlp_get(ndlp)) {
rc = -IOCB_ERROR;
goto issue_ct_rsp_exit;
}
icmd->un.ulpWord[3] = ndlp->nlp_rpi;
/* The exchange is done, mark the entry as invalid */
phba->ct_ctx[tag].flags &= ~UNSOL_VALID;