From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Sun, 24 Aug 2008 01:00:20 +0000 (+0200)
Subject: mv643xx_eth: enforce multiple-of-8-bytes receive buffer size restriction
X-Git-Tag: v2.6.27-rc5~8^2~4^2~30^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=abe787170bb3888c5e587e8e986711fe32ddf2f9;p=pandora-kernel.git

mv643xx_eth: enforce multiple-of-8-bytes receive buffer size restriction

The mv643xx_eth hardware ignores the lower three bits of the buffer
size field in receive descriptors, causing the reception of full-sized
packets to fail at some MTUs.  Fix this by rounding the size of
allocated receive buffers up to a multiple of eight bytes.

While we are at it, add a bit of extra space to each receive buffer so
that we can handle multiple vlan tags on ingress.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
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