From: Quinn Tran <quinn.tran@xxxxxxxxxx>
Normally, ABTS is sent to Target Core as Task MGMT command.
In the case of error, qla2xxx needs to send response, hardware_lock
is required to prevent request queue corruption.
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Quinn Tran <quinn.tran@xxxxxxxxxx>
Signed-off-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_target.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index a463bcc57902..a78c3e9bcb57 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -130,6 +130,9 @@ static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
fc_port_t *fcport, bool local);
void qlt_unreg_sess(struct fc_port *sess);
+static void qlt_24xx_handle_abts(struct scsi_qla_host *,
+ struct abts_recv_from_24xx *);
+
/*
* Global Variables
*/
@@ -389,6 +392,8 @@ static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
(struct abts_recv_from_24xx *)atio;
struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
entry->vp_index);
+ unsigned long flags;
+
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xffff,
"qla_target(%d): Response pkt (ABTS_RECV_24XX) "
@@ -396,9 +401,12 @@ static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
vha->vp_idx, entry->vp_index);
break;
}
- qlt_response_pkt(host, (response_t *)atio);
+ if (!ha_locked)
+ spin_lock_irqsave(&host->hw->hardware_lock, flags);
+ qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
+ if (!ha_locked)
+ spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
break;
-
}
/* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
--
2.12.0
--
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