scsi: lpfc: Fix NPIV port deletion crash
authorJames Smart <jsmart2021@gmail.com>
Sat, 4 Dec 2021 00:26:39 +0000 (16:26 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Tue, 7 Dec 2021 03:35:36 +0000 (22:35 -0500)
commit8ed190a91950564775cbaae9e8e8083a69a8da23
tree0224926b54b617d64e74ce61a6abd47c54c4249d
parent7576d48c64f36f6fea9df2882f710a474fa35f40
scsi: lpfc: Fix NPIV port deletion crash

The driver is calling schedule_timeout after the DA_ID nameserver request
and LOGO commands are issued to the fabric by the initiator virtual
endport.  These fixed delay functions are causing long delays in the
driver's worker thread when processing discovery I/Os in a serialized
fashion, which is then triggering mailbox timeout errors artificially.

To fix this, don't wait on the DA_ID request to complete and call
wait_event_timeout to allow the vport delete thread to make progress on an
event driven basis rather than fixing the wait time.

Link: https://lore.kernel.org/r/20211204002644.116455-5-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/lpfc/lpfc.h
drivers/scsi/lpfc/lpfc_els.c
drivers/scsi/lpfc/lpfc_hbadisc.c
drivers/scsi/lpfc/lpfc_vport.c