From 763456ffa66380cd4591c58d5b50ae04103166a2 Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <hmadhani@redhat.com>
Date: Thu, 21 Nov 2019 16:36:50 -0500
Subject: [PATCH 140/155] [scsi] scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI
failure
Message-id: <20191121163701.43688-16-hmadhani@redhat.com>
Patchwork-id: 287858
O-Subject: [RHLE 7.8 e-stor PATCH v3 15/26] scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure
Bugzilla: 1731581
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
RH-Acked-by: Ewan Milne <emilne@redhat.com>
RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
From: Quinn Tran <qutran@marvell.com>
Bugzilla 1731581
Current code will send PRLI with FC-NVMe bit set for the targets which
support only FCP. This may result into issue with targets which do not
understand NVMe and will go into a strange state. This patch would restart
the login process by going back to PLOGI state. The PLOGI state will force
the target to respond to correct PRLI request.
Fixes: c76ae845ea836 ("scsi: qla2xxx: Add error handling for PLOGI ELS passthrough")
Cc: stable@vger.kernel.org # 5.4
Link: https://lore.kernel.org/r/20191105150657.8092-2-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 983f127603fac650fa34ee69db363e4615eaf9e7)
Signed-off-by: Himanshu Madhani <hmadhani@redhat.com>
Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
drivers/scsi/qla2xxx/qla_init.c | 37 ++++++++-----------------------------
drivers/scsi/qla2xxx/qla_iocb.c | 6 +++++-
2 files changed, 13 insertions(+), 30 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 9584da53e715..10a1690a802d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1878,42 +1878,21 @@ qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
* FCP/NVMe port
*/
if (NVME_FCP_TARGET(ea->fcport)) {
- if (vha->hw->fc4_type_priority == FC4_PRIORITY_NVME)
- ea->fcport->fc4_type &= ~FS_FC4TYPE_NVME;
- else
- ea->fcport->fc4_type &= ~FS_FC4TYPE_FCP;
ql_dbg(ql_dbg_disc, vha, 0x2118,
"%s %d %8phC post %s prli\n",
__func__, __LINE__, ea->fcport->port_name,
(ea->fcport->fc4_type & FS_FC4TYPE_NVME) ?
"NVMe" : "FCP");
- qla24xx_post_prli_work(vha, ea->fcport);
- break;
+ if (vha->hw->fc4_type_priority == FC4_PRIORITY_NVME)
+ ea->fcport->fc4_type &= ~FS_FC4TYPE_NVME;
+ else
+ ea->fcport->fc4_type &= ~FS_FC4TYPE_FCP;
}
- /* at this point both PRLI NVME & PRLI FCP failed */
- if (N2N_TOPO(vha->hw)) {
- if (ea->fcport->n2n_link_reset_cnt < 3) {
- ea->fcport->n2n_link_reset_cnt++;
- /*
- * remote port is not sending Plogi. Reset
- * link to kick start his state machine
- */
- set_bit(N2N_LINK_RESET, &vha->dpc_flags);
- } else {
- ql_log(ql_log_warn, vha, 0x2119,
- "%s %d %8phC Unable to reconnect\n",
- __func__, __LINE__, ea->fcport->port_name);
- }
- } else {
- /*
- * switch connect. login failed. Take connection
- * down and allow relogin to retrigger
- */
- ea->fcport->flags &= ~FCF_ASYNC_SENT;
- ea->fcport->keep_nport_handle = 0;
- qlt_schedule_sess_for_deletion(ea->fcport);
- }
+ ea->fcport->flags &= ~FCF_ASYNC_SENT;
+ ea->fcport->keep_nport_handle = 0;
+ ea->fcport->logout_on_delete = 1;
+ qlt_schedule_sess_for_deletion(ea->fcport);
break;
}
}
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 52673965ca37..186ee5825651 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2859,6 +2859,7 @@ qla2x00_els_dcmd2_sp_done(void *ptr, int res)
ea.rc = res;
qla24xx_handle_plogi_done_event(vha, &ea);
break;
+
case CS_IOCB_ERROR:
switch (fw_status[1]) {
case LSC_SCODE_PORTID_USED:
@@ -2929,6 +2930,7 @@ qla2x00_els_dcmd2_sp_done(void *ptr, int res)
fw_status[0], fw_status[1], fw_status[2]);
fcport->flags &= ~FCF_ASYNC_SENT;
+ fcport->disc_state = DSC_LOGIN_FAILED;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
break;
}
@@ -2941,6 +2943,7 @@ qla2x00_els_dcmd2_sp_done(void *ptr, int res)
fw_status[0], fw_status[1], fw_status[2]);
sp->fcport->flags &= ~FCF_ASYNC_SENT;
+ sp->fcport->disc_state = DSC_LOGIN_FAILED;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
break;
}
@@ -2985,11 +2988,12 @@ qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode,
return -ENOMEM;
}
+ fcport->flags |= FCF_ASYNC_SENT;
+ fcport->disc_state = DSC_LOGIN_PEND;
elsio = &sp->u.iocb_cmd;
ql_dbg(ql_dbg_io, vha, 0x3073,
"Enter: PLOGI portid=%06x\n", fcport->d_id.b24);
- fcport->flags |= FCF_ASYNC_SENT;
sp->type = SRB_ELS_DCMD;
sp->name = "ELS_DCMD";
sp->fcport = fcport;
--
2.13.6