Commit 6281bfe0 authored by James.Smart@Emulex.Com's avatar James.Smart@Emulex.Com Committed by James Bottomley
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[SCSI] lpfc 8.1.1 : Fixes for short cable pulls 



Cause: Link bounces were causing discovery ELS's to be killed.
Driver was not properly flushing ELS commands upon the subsequent
link bounces. Thus, processing of ELS post link bounce erroneously
assumed discovery failure and device loss.

Signed-off-by: default avatarJames Smart <James.Smart@emulex.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 2fb70f79

drivers/scsi/lpfc/lpfc_els.c

+4 −0
Original line number Diff line number Diff line
@@ -720,6 +720,7 @@ lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, 
		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */

		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&

		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||

		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||

		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {

			disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);

		}
@@ -869,6 +870,7 @@ lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, 
		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */

		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&

		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||

		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||

		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {

			goto out;

		}
@@ -1054,6 +1056,7 @@ lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, 
		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */

		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&

		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||

		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||

		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {

			disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);

		}
@@ -1205,6 +1208,7 @@ lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, 
		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */

		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&

		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||

		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||

		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {

			goto out;

		}

drivers/scsi/lpfc/lpfc_init.c

+2 −0
Original line number Diff line number Diff line
@@ -563,6 +563,8 @@ lpfc_handle_latt(struct lpfc_hba * phba) 


	rc = -EIO;



	/* Cleanup any outstanding ELS commands */

	lpfc_els_flush_cmd(phba);



	psli->slistat.link_event++;

	lpfc_read_la(phba, pmb, mp);

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