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scsi: lpfc: Allow DEVICE_RECOVERY mode after RSCN receipt if in PRLI_ISSUE state

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commit 9609385dd91b26751019b22ca9bfa4bec7602ae1 upstream.

Certain vendor specific targets initially register with the fabric as an
initiator function first and then re-register as a target function
afterwards.

The timing of the target function re-registration can cause a race
condition such that the driver is stuck assuming the remote port as an
initiator function and never discovers the target's hosted LUNs.

Expand the nlp_state qualifier to also include NLP_STE_PRLI_ISSUE because
the state means that PRLI was issued but we have not quite reached
MAPPED_NODE state yet.  If we received an RSCN in the PRLI_ISSUE state,
then we should restart discovery again by going into DEVICE_RECOVERY.

Fixes: dded1dc31aa4 ("scsi: lpfc: Modify when a node should be put in device recovery mode during RSCN")
Cc: <stable@vger.kernel.org> # v6.6+
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20240628172011.25921-3-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Justin Tee 2024-06-28 10:20:05 -07:00 committed by Greg Kroah-Hartman
parent 7816a528ad
commit 81079920f1
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/lpfc/lpfc_hbadisc.c
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@ -5725,7 +5725,7 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
return ndlp;
if (ndlp->nlp_state > NLP_STE_UNUSED_NODE &&
ndlp->nlp_state < NLP_STE_PRLI_ISSUE) {
ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) {
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RECOVERY);
}