From: Michael Chan <mchan@broadcom.com>
Date: Sun, 4 Mar 2012 14:48:15 +0000 (+0000)
Subject: tg3: Fix poor tx performance on 57766 after MTU change
X-Git-Tag: v3.4-rc1~177^2~148
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2fae5e3670a666039e6f2fd63e1a5d320c71b913;p=pandora-kernel.git

tg3: Fix poor tx performance on 57766 after MTU change

GRC reset causes the read DMA engine to go into a mode that breaks up
requests into 256 bytes.  A PHY reset is required to bring it back to
the normal mode.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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