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Commit 378b72c8 authored by Nithin Sujir's avatar Nithin Sujir Committed by David S. Miller
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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: default avatarNithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 92e6457d

drivers/net/ethernet/broadcom/tg3.c

+3 −0
Original line number Diff line number Diff line
@@ -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 |

drivers/net/ethernet/broadcom/tg3.h

+1 −0
Original line number Diff line number Diff line
@@ -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