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xprtrdma: Handle additional connection events 

Commit 38ca83a5 added RDMA_CM_EVENT_TIMEWAIT_EXIT. But that status
is relevant only for consumers that re-use their QPs on new
connections. xprtrdma creates a fresh QP on reconnection, so that
event should be explicitly ignored.

Squelch the alarming "unexpected CM event" message.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Shirley Ma <shirley.ma@oracle.com>
Tested-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2014-07-29 17:26:12 -04:00 committed by Anna Schumaker
parent a779ca5fa7
commit 8079fb785e
1 changed files with 14 additions and 11 deletions
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25
net/sunrpc/xprtrdma/verbs.c
View File

@ -326,8 +326,16 @@ static const char * const conn[] = {
"rejected",
"established",
"disconnected",
"device removal"
"device removal",
"multicast join",
"multicast error",
"address change",
"timewait exit",
};
#define CONNECTION_MSG(status) \
((status) < ARRAY_SIZE(conn) ? \
conn[(status)] : "unrecognized connection error")
#endif
static int
@ -385,23 +393,18 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event)
case RDMA_CM_EVENT_DEVICE_REMOVAL:
connstate = -ENODEV;
connected:
dprintk("RPC: %s: %s: %pI4:%u (ep 0x%p event 0x%x)\n",
__func__,
(event->event <= 11) ? conn[event->event] :
"unknown connection error",
&addr->sin_addr.s_addr,
ntohs(addr->sin_port),
ep, event->event);
atomic_set(&rpcx_to_rdmax(ep->rep_xprt)->rx_buf.rb_credits, 1);
dprintk("RPC: %s: %sconnected\n",
__func__, connstate > 0 ? "" : "dis");
ep->rep_connected = connstate;
ep->rep_func(ep);
wake_up_all(&ep->rep_connect_wait);
break;
/*FALLTHROUGH*/
default:
dprintk("RPC: %s: unexpected CM event %d\n",
__func__, event->event);
dprintk("RPC: %s: %pI4:%u (ep 0x%p): %s\n",
__func__, &addr->sin_addr.s_addr,
ntohs(addr->sin_port), ep,
CONNECTION_MSG(event->event));
break;
}