From 19fad86f3b34f52eebc511f6cdb99e82f53aee94 Mon Sep 17 00:00:00 2001 From: Padmanabh Ratnakar Date: Mon, 7 Mar 2011 03:08:16 +0000 Subject: [PATCH] be2net: Checksum field valid only for TCP/UDP L4 checksum field is valid only for TCP/UDP packets in Lancer Signed-off-by: Padmanabh Ratnakar Signed-off-by: Sathya Perla Signed-off-by: Subramanian Seetharaman Signed-off-by: David S. Miller --- drivers/net/benet/be_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index bf344347b5a..ac7ae21bd0d 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -865,14 +865,17 @@ static void be_rx_stats_update(struct be_rx_obj *rxo, static inline bool csum_passed(struct be_eth_rx_compl *rxcp) { - u8 l4_cksm, ipv6, ipcksm; + u8 l4_cksm, ipv6, ipcksm, tcpf, udpf; l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp); ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp); ipv6 = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp); + tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); + udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp); - /* Ignore ipcksm for ipv6 pkts */ - return l4_cksm && (ipcksm || ipv6); + /* L4 checksum is not reliable for non TCP/UDP packets. + * Also ignore ipcksm for ipv6 pkts */ + return (tcpf || udpf) && l4_cksm && (ipcksm || ipv6); } static struct be_rx_page_info * -- 2.41.0