tg3: Prevent page allocation failure during TSO workaround

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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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Michael Chan 2014-05-11 20:22:54 -07:00 • committed by David S. Miller

parent d71c0dc4e9

commit d3f6f3a1d8

1 changed files with 26 additions and 7 deletions

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drivers/net/ethernet/broadcom/tg3.c

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