From: Alexei Potashnik <alexei@xxxxxxxxxxxxxxx>
This patch has been added to the 4.1 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit daddf5cf9b5c68b81b2bb7133f1dd0fda4552d0b ]
cancel any commands from initiator's s_id that are still waiting
on qla_tgt_wq when PLOGI arrives.
Cc: <stable@xxxxxxxxxxxxxxx> # v3.18+
Signed-off-by: Alexei Potashnik <alexei@xxxxxxxxxxxxxxx>
Acked-by: Quinn Tran <quinn.tran@xxxxxxxxxx>
Signed-off-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_target.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 71cc381..f4db506 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -4079,6 +4079,38 @@ qlt_find_sess_invalidate_other(struct qla_tgt *tgt, uint64_t wwn,
return sess;
}
+/* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
+static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
+{
+ struct qla_tgt_sess_op *op;
+ struct qla_tgt_cmd *cmd;
+ uint32_t key;
+ int count = 0;
+
+ key = (((u32)s_id->b.domain << 16) |
+ ((u32)s_id->b.area << 8) |
+ ((u32)s_id->b.al_pa));
+
+ spin_lock(&vha->cmd_list_lock);
+ list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
+ uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
+ if (op_key == key) {
+ op->aborted = true;
+ count++;
+ }
+ }
+ list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
+ uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
+ if (cmd_key == key) {
+ cmd->state = QLA_TGT_STATE_ABORTED;
+ count++;
+ }
+ }
+ spin_unlock(&vha->cmd_list_lock);
+
+ return count;
+}
+
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
@@ -4112,6 +4144,9 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
switch (iocb->u.isp24.status_subcode) {
case ELS_PLOGI:
+ /* Mark all stale commands in qla_tgt_wq for deletion */
+ abort_cmds_for_s_id(vha, &port_id);
+
if (wwn)
sess = qlt_find_sess_invalidate_other(tgt, wwn,
port_id, loop_id);
--
2.5.0
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