From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Mon, 28 Jan 2008 08:40:51 +0000 (+0200)
Subject: mlx4_core: For 64-bit systems, vmap() kernel queue buffers
X-Git-Tag: v2.6.25-rc1~32^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=313abe55a87bc10e55d00f337d609e17ad5f8c9a;p=pandora-kernel.git

mlx4_core: For 64-bit systems, vmap() kernel queue buffers

Since kernel virtual memory is not a problem on 64-bit systems, there
is no reason to use our own 2-layer page mapping scheme for large
kernel queue buffers on such systems.  Instead, map the page list to a
single virtually contiguous buffer with vmap(), so that can we access
buffer memory via direct indexing.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

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