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authorMatt Carlson <mcarlson@broadcom.com>2009-11-02 14:23:27 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-02 23:39:00 -0800
commit92c6b8d16a36df3f28b2537bed2a56491fb08f11 (patch)
tree13f89b031c7c82163233963c24bfe20312ba901e /drivers/net/tg3.h
parent0e1406dd404ce55dbe8d68b4b5e2aed7e5c75fdb (diff)
tg3: Fix 5906 transmit hangs
The 5906 has trouble with fragments that are less than 8 bytes in size. This patch works around the problem by pivoting the 5906's transmit routine to tg3_start_xmit_dma_bug() and introducing a new SHORT_DMA_BUG flag that enables code to detect and react to the problematic condition. 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.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index b603810b4e9..a5568a14974 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2761,6 +2761,7 @@ struct tg3 {
#define TG3_FLG3_ENABLE_RSS 0x00020000
#define TG3_FLG3_4G_DMA_BNDRY_BUG 0x00080000
#define TG3_FLG3_40BIT_DMA_LIMIT_BUG 0x00100000
+#define TG3_FLG3_SHORT_DMA_BUG 0x00200000
struct timer_list timer;
u16 timer_counter;