[ofa-general] [PATCH] IB/mlx4: Use pgprot_writecombine() for BlueFlame pages

[Or Gerlitz]

Tziporet Koren wrote:
> The fast path is enabled only when inline in used.

OK, so since IPoIB doesn't use inline posting, its seems we have another issue here, as far as I can tell with connectx I saw ipoib latency of about 12us using RHEL 5.x kernels installed with ofed, where on the same nodes with 2.6.29 I get 19us - Roland, any suggestion how to resolve that? maybe as comparison you would like to see the numbers with the upstream 2.6.18 kernel?

Or.