This is a note to let you know that I've just added the patch titled scsi: qedi: Mark all connections for recovery on link down event to the 5.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: scsi-qedi-mark-all-connections-for-recovery-on-link-.patch and it can be found in the queue-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 0f98160c517d6e86a14b07adad23f8c541fe3e9f Author: Nilesh Javali <njavali@xxxxxxxxxxx> Date: Tue Sep 8 02:56:55 2020 -0700 scsi: qedi: Mark all connections for recovery on link down event [ Upstream commit 4118879be3755b38171063dfd4a57611d4b20a83 ] For short time cable pulls, the in-flight I/O to the firmware is never cleaned up, resulting in the behaviour of stale I/O completion causing list_del corruption and soft lockup of the system. On link down event, mark all the connections for recovery, causing cleanup of all the in-flight I/O immediately. Link: https://lore.kernel.org/r/20200908095657.26821-7-mrangankar@xxxxxxxxxxx Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx> Signed-off-by: Manish Rangankar <mrangankar@xxxxxxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 6f038ae5efcaf..dfe24b505b402 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -1127,6 +1127,15 @@ static void qedi_schedule_recovery_handler(void *dev) schedule_delayed_work(&qedi->recovery_work, 0); } +static void qedi_set_conn_recovery(struct iscsi_cls_session *cls_session) +{ + struct iscsi_session *session = cls_session->dd_data; + struct iscsi_conn *conn = session->leadconn; + struct qedi_conn *qedi_conn = conn->dd_data; + + qedi_start_conn_recovery(qedi_conn->qedi, qedi_conn); +} + static void qedi_link_update(void *dev, struct qed_link_output *link) { struct qedi_ctx *qedi = (struct qedi_ctx *)dev; @@ -1138,6 +1147,7 @@ static void qedi_link_update(void *dev, struct qed_link_output *link) QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "Link Down event.\n"); atomic_set(&qedi->link_state, QEDI_LINK_DOWN); + iscsi_host_for_each_session(qedi->shost, qedi_set_conn_recovery); } }