linux/drivers/infiniband
Moni Shoua 61c0ddbe97 IB/cma: Send MRA for reply messages
Current implementation of RDMA_CM sends MRA (Message Receipt
Acknowledgment) only for request messages but not for response messages.

As a result, a slow active side of the connection may send a ready-to-use
message to the passive side in a delay that is too long for the passive
side to wait for.

This patch adds a call to ib_send_cm_mra() upon receiving a response
message and by this tells the other side to modify the service timeout
to a bigger value, 16 times than before. As in the request case, MRA
for reply will be sent only if a duplicate response has arrived.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Matan Barak <matan@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-21 12:29:31 -04:00
..
core IB/cma: Send MRA for reply messages 2017-04-21 12:29:31 -04:00
hw IB/mlx5: Support congestion related counters 2017-04-21 12:29:31 -04:00
sw IB/rxe: Cache dst in QP instead of getting it for each send 2017-04-21 10:45:02 -04:00
ulp IB/ipoib: Fix deadlock between ipoib_stop and mcast join flow 2017-04-21 11:45:55 -04:00
Kconfig IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev 2017-04-20 12:01:38 -04:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00