During a stress offline/online test in PT2PT topology, target rediscovery can fail with a specific target vendor array. When the HBA transitions to online mode it is possible to receive an unsolicited FLOGI before processing the Link Up event. The received FLOGI will set the defer_flogi_acc_flag, which instructs the driver to wait until it transmits its own FLOGI before ACKing the received FLOGI. In this failure scenario, the link up processing clears the set defer_flogi_acc_flag before we have sent out the FLOGI. As the target has the higher WWPN and is responsible for sending the PLOGI, the target is stuck waiting for its FLOGI_ACC that the driver will never send. Remove the clear of defer_flogi_acc_flag from Link Up event processing. In this stress test case, the defer_flogi_acc_flag is cleared during the Link Down event processing anyways. Co-developed-by: Justin Tee <justin.tee@xxxxxxxxxxxx> Signed-off-by: Justin Tee <justin.tee@xxxxxxxxxxxx> Signed-off-by: James Smart <jsmart2021@xxxxxxxxx> --- drivers/scsi/lpfc/lpfc_hbadisc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 2645def612e6..36090e21bb10 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1392,7 +1392,6 @@ lpfc_linkup(struct lpfc_hba *phba) /* reinitialize initial HBA flag */ phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_RHBA_CMPL); - phba->defer_flogi_acc_flag = false; return 0; } -- 2.26.2
