IB/srp: Handle DREQ events from CM
Handle IB_CM_DREQ_ERROR and IB_CM_DREQ_RECEIVED events from the CM,
instead of just printing "Unhandled CM event". In the case of
DREQ_ERROR, just ignore the event -- a TIMEWAIT_EXIT will be generated
also. For DREQ_RECEIVED, send a DREP in response to shut the
connection down cleanly.
Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a01b73b..4ba790f 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1196,11 +1196,10 @@
srp_cm_rej_handler(cm_id, event, target);
break;
- case IB_CM_MRA_RECEIVED:
- printk(KERN_ERR PFX "MRA received\n");
- break;
-
- case IB_CM_DREP_RECEIVED:
+ case IB_CM_DREQ_RECEIVED:
+ printk(KERN_WARNING PFX "DREQ received - connection closed\n");
+ if (ib_send_cm_drep(cm_id, NULL, 0))
+ printk(KERN_ERR PFX "Sending CM DREP failed\n");
break;
case IB_CM_TIMEWAIT_EXIT:
@@ -1210,6 +1209,11 @@
target->status = 0;
break;
+ case IB_CM_MRA_RECEIVED:
+ case IB_CM_DREQ_ERROR:
+ case IB_CM_DREP_RECEIVED:
+ break;
+
default:
printk(KERN_WARNING PFX "Unhandled CM event %d\n", event->event);
break;