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scsi: lpfc: Fix rediscovery on switch blade pull

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When the switch blade is pulled out then plugged back in, the driver
does not issue a PLOGI to the target

When the switch blade is pulled out, it does not reset the link. The
driver ends up issuing a LOGO to the target, and finally sees devloss.
Since the driver believes that a LOGO is outstanding, it does not issue
a PLOGI to the target upon link up

Correct by placing the ndlp in UNUSED state When devloss happens in
LOGO_ISSUE state.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Dick Kennedy 2017-08-23 16:55:32 -07:00 committed by Martin K. Petersen
parent 2877cbffb7
commit d2aa48761e
1 changed files with 8 additions and 5 deletions
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13
drivers/scsi/lpfc/lpfc_nportdisc.c
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@ -2192,12 +2192,15 @@ lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
/*
* Take no action. If a LOGO is outstanding, then possibly DevLoss has
* timed out and is calling for Device Remove. In this case, the LOGO
* must be allowed to complete in state LOGO_ISSUE so that the rpi
* and other NLP flags are correctly cleaned up.
* DevLoss has timed out and is calling for Device Remove.
* In this case, abort the LOGO and cleanup the ndlp
*/
return ndlp->nlp_state;
lpfc_unreg_rpi(vport, ndlp);
/* software abort outstanding PLOGI */
lpfc_els_abort(vport->phba, ndlp);
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
static uint32_t