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RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT event

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Consumers that want to re-use their QPs in new connections need to
know when the QP has exited the timewait state.  Report the timewait
event through the rdma_cm.

Signed-off-by: Amir Vadai <amirv@mellanox.co.il>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Amir Vadai 2008-07-22 14:14:23 -07:00 committed by Roland Dreier
parent dd5bdff83b
commit 38ca83a588
2 changed files with 8 additions and 2 deletions
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7
drivers/infiniband/core/cma.c
View file

@ -920,7 +920,10 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
struct rdma_cm_event event;
int ret = 0;
if (cma_disable_callback(id_priv, CMA_CONNECT))
if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&
cma_disable_callback(id_priv, CMA_CONNECT)) ||
(ib_event->event == IB_CM_TIMEWAIT_EXIT &&
cma_disable_callback(id_priv, CMA_DISCONNECT)))
return 0;
memset(&event, 0, sizeof event);
@ -956,6 +959,8 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
event.event = RDMA_CM_EVENT_DISCONNECTED;
break;
case IB_CM_TIMEWAIT_EXIT:
event.event = RDMA_CM_EVENT_TIMEWAIT_EXIT;
break;
case IB_CM_MRA_RECEIVED:
/* ignore event */
goto out;

3
include/rdma/rdma_cm.h
View file

@ -58,7 +58,8 @@ enum rdma_cm_event_type {
RDMA_CM_EVENT_DEVICE_REMOVAL,
RDMA_CM_EVENT_MULTICAST_JOIN,
RDMA_CM_EVENT_MULTICAST_ERROR,
RDMA_CM_EVENT_ADDR_CHANGE
RDMA_CM_EVENT_ADDR_CHANGE,
RDMA_CM_EVENT_TIMEWAIT_EXIT
};
enum rdma_port_space {