[ofa-general] [PATCH/RFC] IPoIB: Allocate priv->tx_ring with vmalloc()

[Roland Dreier]

 > I think that this patch should be limited to 64-bit systems only.
 > On 32-bit systems, kernel virtual memory is very limited.  Won't
 > this cause problems on 32-bit systems?

How big is a tx_ring really going to be?  256 KB in extreme cases?

I don't think using 256 KB of vmalloc space is a problem even on
32-bit systems, which have a minimum of 128 MB of vmalloc space.