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netdev: bfin_mac: disable hardware checksum if writeback cache is enabled

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With writeback caches, corrupted RX packets will be sent up the stack
without any error markings.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sonic Zhang 2011-01-10 02:54:33 +00:00 committed by David S. Miller
parent 53ed29841d
commit 2d70a3d42d
1 changed files with 7 additions and 0 deletions
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7
drivers/net/bfin_mac.h
View file

@ -17,7 +17,14 @@
#include <linux/etherdevice.h>
#include <linux/bfin_mac.h>
/*
* Disable hardware checksum for bug #5600 if writeback cache is
* enabled. Otherwize, corrupted RX packet will be sent up stack
* without error mark.
*/
#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
#define BFIN_MAC_CSUM_OFFLOAD
#endif
#define TX_RECLAIM_JIFFIES (HZ / 5)