From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 5 Feb 2008 04:49:56 +0000 (-0500)
Subject: virtio: simplify config mechanism.
X-Git-Tag: v2.6.25-rc1~1058^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a586d4f6016f7139d8c26df0e6927131168d3b5b;p=pandora-kernel.git

virtio: simplify config mechanism.

Previously we used a type/len pair within the config space, but this
seems overkill.  We now simply define a structure which represents the
layout in the config space: the config space can now only be extended
at the end.

The main driver-visible changes:
1) We indicate what fields are present with an explicit feature bit.
2) Virtqueues are explicitly numbered, and not in the config space.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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