linux/drivers/infiniband/hw
Steve Wise bec658ff31 RDMA/cxgb3: Turn off RX coalescing for iWARP connections
The HW by default has RX coalescing on.  For iWARP connections, this
causes a 100ms delay in connection establishement due to the ingress
MPA Start message being stalled in HW.  So explicitly turn RX
coalescing off when setting up iWARP connections.

This was causing very bad performance for NP64 gather operations using
Open MPI, due to the way it sets up connections on larger jobs.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-09-27 09:28:55 -07:00
..
amso1100
cxgb3 RDMA/cxgb3: Turn off RX coalescing for iWARP connections 2010-09-27 09:28:55 -07:00
cxgb4 RDMA/cxgb4: Obtain RDMA QID ranges from LLD/FW 2010-08-07 23:08:47 -07:00
ehca Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
ipath
mlx4
mthca
nes RDMA/nes: Fix hang with modified FIN handling on A0 cards 2010-09-08 14:38:23 -07:00
qib