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authorAlexei Potashnik <alexei@purestorage.com>2015-07-14 16:00:45 -0400
committerNicholas Bellinger <nab@linux-iscsi.org>2015-07-24 14:19:40 -0700
commitdaddf5cf9b5c68b81b2bb7133f1dd0fda4552d0b (patch)
treed3b32ada3272b5792d890eebfd82c65e41190a57 /drivers/scsi
parenta6ca88780dd66b0700d89419abd17b6b4bb49483 (diff)
qla2xxx: Abort stale cmds on qla_tgt_wq when plogi arrives
cancel any commands from initiator's s_id that are still waiting on qla_tgt_wq when PLOGI arrives. Cc: <stable@vger.kernel.org> # v3.18+ Signed-off-by: Alexei Potashnik <alexei@purestorage.com> Acked-by: Quinn Tran <quinn.tran@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/qla2xxx/qla_target.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index acb2a50d3c55..0b08bebea538 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -4060,6 +4060,38 @@ 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
*/
@@ -4093,6 +4125,9 @@ 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);