[PATCH 5/5] netdev: bfin_mac: disable hardware checksum if writeback cache is enabled
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STALE5764d
From: Mike Frysinger <hidden>
Date: 2011-01-10 12:46:54
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Sonic Zhang <redacted> With writeback caches, corrupted RX packets will be sent up the stack without any error markings. Signed-off-by: Sonic Zhang <redacted> Signed-off-by: Mike Frysinger <redacted> --- drivers/net/bfin_mac.h | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/net/bfin_mac.h b/drivers/net/bfin_mac.h
index c1a0d66..f8559ac 100644
--- a/drivers/net/bfin_mac.h
+++ b/drivers/net/bfin_mac.h@@ -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)
--
1.7.4.rc1