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authorMichael Chan <mchan@broadcom.com>2006-06-30 03:15:54 (GMT)
committerDavid S. Miller <davem@sunset.davemloft.net>2006-06-30 21:11:57 (GMT)
commit52c0fd834ea0e7c6ef8616ce0a1f85bac4233ed7 (patch)
tree92897bedf97906699f654fd94985fbada0497daa /drivers/net/tg3.h
parent1661394e78b3b2cc868cd0e89c1066974302aaca (diff)
downloadlinux-52c0fd834ea0e7c6ef8616ce0a1f85bac4233ed7.tar.xz
[TG3]: Add TSO workaround using GSO
Use GSO to workaround a rare TSO bug on some chips. This hardware bug may be triggered when the TSO header size is greater than 80 bytes. When this condition is detected in a TSO packet, the driver will use GSO to segment the packet to workaround the hardware bug. Thanks to Juergen Kreileder <jk@blackdown.de> for reporting the problem and collecting traces to help debug the problem. And thanks to Herbert Xu <herbert@gondor.apana.org.au> for providing the GSO mechanism that happens to be the perfect workaround for this problem. 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.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 97a8604..ba2c987 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -125,6 +125,7 @@
#define CHIPREV_ID_5750_A0 0x4000
#define CHIPREV_ID_5750_A1 0x4001
#define CHIPREV_ID_5750_A3 0x4003
+#define CHIPREV_ID_5750_C2 0x4202
#define CHIPREV_ID_5752_A0_HW 0x5000
#define CHIPREV_ID_5752_A0 0x6000
#define CHIPREV_ID_5752_A1 0x6001
@@ -2193,7 +2194,7 @@ struct tg3 {
#define TG3_FLAG_INIT_COMPLETE 0x80000000
u32 tg3_flags2;
#define TG3_FLG2_RESTART_TIMER 0x00000001
-/* 0x00000002 available */
+#define TG3_FLG2_HW_TSO_1_BUG 0x00000002
#define TG3_FLG2_NO_ETH_WIRE_SPEED 0x00000004
#define TG3_FLG2_IS_5788 0x00000008
#define TG3_FLG2_MAX_RXPEND_64 0x00000010