From d3f6f3a1d818410c17445bce4f4caab52eb102f1 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Sun, 11 May 2014 20:22:54 -0700
Subject: [PATCH] tg3: Prevent page allocation failure during TSO workaround

If any TSO fragment hits hardware bug conditions (e.g. 4G boundary), the
driver will workaround by calling skb_copy() to copy to a linear SKB.  Users
have reported page allocation failures as the TSO packet can be up to 64K.
Copying such a large packet is also very inefficient.  We fix this by using
existing tg3_tso_bug() to transmit the packet using GSO.

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