diff options
| author | Matt Carlson <mcarlson@broadcom.com> | 2008-04-19 18:12:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-19 18:12:33 -0700 |
| commit | 41588ba1ae166eaba0a70abf2d7ff064ad9331d3 (patch) | |
| tree | 4ec3ef51db69aa0f9b6446435580115aa68098f7 /drivers/net/tg3.h | |
| parent | 36ef408061da9e012375547d69b27cc1f537b044 (diff) | |
tg3: 5701 DMA corruption fix
Herbert Xu's commit fb93134dfc2a6e6fbedc7c270a31da03fce88db9, entitled
"[TCP]: Fix size calculation in sk_stream_alloc_pskb", has triggered a
bug in the 5701 where the 5701 DMA engine will corrupt outgoing
packets. This problem only happens when the starting address of the
packet matches a certain range of offsets and only when the 5701 is
placed downstream of a particular Intel bridge.
This patch detects the problematic bridge and if present, readjusts the
starting address of the packet data to a dword aligned boundary.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tg3.h')
| -rw-r--r-- | drivers/net/tg3.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index c1075a73d66c..c688c3ac5035 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2476,6 +2476,7 @@ struct tg3 { #define TG3_FLG3_NO_NVRAM_ADDR_TRANS 0x00000001 #define TG3_FLG3_ENABLE_APE 0x00000002 #define TG3_FLG3_5761_5784_AX_FIXES 0x00000004 +#define TG3_FLG3_5701_DMA_BUG 0x00000008 struct timer_list timer; u16 timer_counter; |