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IPoIB: Use multicast loopback blocking if available
authorRon Livne <ronli@voltaire.com>
Tue, 15 Jul 2008 06:48:48 +0000 (23:48 -0700)
committerRoland Dreier <rolandd@cisco.com>
Tue, 15 Jul 2008 06:48:48 +0000 (23:48 -0700)
commit12406734051a26e9fe4c8568e931dfddbb72d431
tree731bbb97c981389fd04684714214b18388ec8b41tree | snapshot
parent521e575b9a7324a0bca762622139f69582a042bfcommit | diff
IPoIB: Use multicast loopback blocking if available

Set IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK for IPoIB's UD QPs if
supported by the underlying device.  This creates an improvement of up
to 39% in bandwidth when sending multicast packets with IPoIB, and an
improvment of 12% in cpu usage.

Signed-off-by: Ron Livne <ronli@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/ulp/ipoib/ipoib_verbs.c diff | blob | history
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