[net-next][PATCH 09/13] RDS: IB: handle the RDMA CM time wait event

From: Santosh Shilimkar
Date: Sat Feb 27 2016 - 00:45:52 EST


Drop the RDS connection on RDMA_CM_EVENT_TIMEWAIT_EXIT so that
it can reconnect and resume.

While testing fastreg, this error happened in couple of tests but
was getting un-noticed.

Signed-off-by: Santosh Shilimkar <ssantosh@xxxxxxxxxx>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxxxxxx>
---
net/rds/rdma_transport.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c
index 4f4b3d8..7220beb 100644
--- a/net/rds/rdma_transport.c
+++ b/net/rds/rdma_transport.c
@@ -117,6 +117,14 @@ int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id,
rds_conn_drop(conn);
break;

+ case RDMA_CM_EVENT_TIMEWAIT_EXIT:
+ if (conn) {
+ pr_info("RDS: RDMA_CM_EVENT_TIMEWAIT_EXIT event: dropping connection %pI4->%pI4\n",
+ &conn->c_laddr, &conn->c_faddr);
+ rds_conn_drop(conn);
+ }
+ break;
+
default:
/* things like device disconnect? */
printk(KERN_ERR "RDS: unknown event %u (%s)!\n",
--
1.9.1