From 378b72c873b4828cde5b4bc85c7029d98f8f1df4 Mon Sep 17 00:00:00 2001 From: Nithin Sujir Date: Mon, 29 Jul 2013 13:58:39 -0700 Subject: [PATCH] tg3: Fix UDP fragments treated as RMCP The 5762 devices sometimes incorrectly treat udp fragments as RMCP packets and route to the APE. This patch sets the RX_MODE_IPV4_FRAG_FIX bit for these devices which enables the proper behaviour. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 3 +++ drivers/net/ethernet/broadcom/tg3.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index f077c8f5baa1..6e59ef1ba13e 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -10420,6 +10420,9 @@ static int tg3_reset_hw(struct tg3 *tp, bool reset_phy) if (tg3_flag(tp, 5755_PLUS)) tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE; + if (tg3_asic_rev(tp) == ASIC_REV_5762) + tp->rx_mode |= RX_MODE_IPV4_FRAG_FIX; + if (tg3_flag(tp, ENABLE_RSS)) tp->rx_mode |= RX_MODE_RSS_ENABLE | RX_MODE_RSS_ITBL_HASH_BITS_7 | diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index 2e0f3d34ea5d..ddb8be1298ea 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -532,6 +532,7 @@ #define RX_MODE_RSS_ITBL_HASH_BITS_7 0x00700000 #define RX_MODE_RSS_ENABLE 0x00800000 #define RX_MODE_IPV6_CSUM_ENABLE 0x01000000 +#define RX_MODE_IPV4_FRAG_FIX 0x02000000 #define MAC_RX_STATUS 0x0000046c #define RX_STATUS_REMOTE_TX_XOFFED 0x00000001 #define RX_STATUS_XOFF_RCVD 0x00000002 -- 2.20.1