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scsi: lpfc: Move NPIV's transport unregistration to after resource clean up

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[ Upstream commit 4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c ]

There are cases after NPIV deletion where the fabric switch still believes
the NPIV is logged into the fabric.  This occurs when a vport is
unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the
fabric.

Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including
the fabric D_ID, removes the last ndlp reference and frees the ndlp rport
object.  This sometimes causes the race condition where the final DA_ID and
LOGO are skipped from being sent to the fabric switch.

Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID
and LOGO are sent.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20240305200503.57317-3-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Justin Tee 2024-03-05 12:04:53 -08:00 committed by Greg Kroah-Hartman
parent 17db92da8b
commit f2c7f02905
1 changed files with 4 additions and 4 deletions
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8
drivers/scsi/lpfc/lpfc_vport.c
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@ -651,10 +651,6 @@ lpfc_vport_delete(struct fc_vport *fc_vport)
lpfc_free_sysfs_attr(vport);
lpfc_debugfs_terminate(vport);
/* Remove FC host to break driver binding. */
fc_remove_host(shost);
scsi_remove_host(shost);
/* Send the DA_ID and Fabric LOGO to cleanup Nameserver entries. */
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp)
@ -700,6 +696,10 @@ lpfc_vport_delete(struct fc_vport *fc_vport)
skip_logo:
/* Remove FC host to break driver binding. */
fc_remove_host(shost);
scsi_remove_host(shost);
lpfc_cleanup(vport);
/* Remove scsi host now. The nodes are cleaned up. */