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(parent: ff67df5) | patch
vxge: improve tx performance by using mmiowb() instead of wmb()
authorBenjamin LaHaise <ben.lahaise@neterion.com>
Tue, 4 Aug 2009 10:21:21 +0000 (10:21 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 5 Aug 2009 20:10:44 +0000 (13:10 -0700)
commitff1b974cf30b282f90993ab658e59b73c152c0b8
tree688bfaa372fbaa1cf7f7a2e18de970efbfb4c034tree | snapshot (tar.gz zip)
parentff67df55f6bde9de5e508bf1f09509c843accd54commit | diff
vxge: improve tx performance by using mmiowb() instead of wmb()

wmb() is extremely heavy on x86.  The semantics required in the driver are
provided by mmiowb(), so use that and improve tx performance on P4 Xeons by
5-10%.

Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com>
Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/vxge/vxge-traffic.c diff | blob | blame | history