From edbb903461dd7dafce6916901adde5164969e814 Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Fri, 26 Dec 2014 14:48:33 +0000 Subject: [PATCH] fix mvneta vlan tagging This is a 3.14.x backport of: "mvneta: Fix TSO and checksum for non-acceleration vlan traffic" Upstream commits: 817dbfa5d1bc276a72c1a577310382008e8aca0a 2d39d120781a5770573dc6ed672a5a562f541aea Fixes vlan tagging on SoC interfaces for the WRT1900AC. Useful when using mvsw6171 driver. Signed-off-by: Mark Milburn Signed-off-by: Imre Kaloz SVN-Revision: 43781 --- .../110-mvneta_fix_tso_and_chksum.patch | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 target/linux/mvebu/patches-3.14/110-mvneta_fix_tso_and_chksum.patch diff --git a/target/linux/mvebu/patches-3.14/110-mvneta_fix_tso_and_chksum.patch b/target/linux/mvebu/patches-3.14/110-mvneta_fix_tso_and_chksum.patch new file mode 100644 index 0000000000..7115468e2e --- /dev/null +++ b/target/linux/mvebu/patches-3.14/110-mvneta_fix_tso_and_chksum.patch @@ -0,0 +1,38 @@ +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -20,6 +20,7 @@ + #include + #include + #include ++#include + #include + #include + #include +@@ -1380,15 +1381,16 @@ static u32 mvneta_skb_tx_csum(struct mvn + { + if (skb->ip_summed == CHECKSUM_PARTIAL) { + int ip_hdr_len = 0; ++ __be16 l3_proto = vlan_get_protocol(skb); + u8 l4_proto; + +- if (skb->protocol == htons(ETH_P_IP)) { ++ if (l3_proto == htons(ETH_P_IP)) { + struct iphdr *ip4h = ip_hdr(skb); + + /* Calculate IPv4 checksum and L4 checksum */ + ip_hdr_len = ip4h->ihl; + l4_proto = ip4h->protocol; +- } else if (skb->protocol == htons(ETH_P_IPV6)) { ++ } else if (l3_proto == htons(ETH_P_IPV6)) { + struct ipv6hdr *ip6h = ipv6_hdr(skb); + + /* Read l4_protocol from one of IPv6 extra headers */ +@@ -1399,7 +1401,7 @@ static u32 mvneta_skb_tx_csum(struct mvn + return MVNETA_TX_L4_CSUM_NOT; + + return mvneta_txq_desc_csum(skb_network_offset(skb), +- skb->protocol, ip_hdr_len, l4_proto); ++ l3_proto, ip_hdr_len, l4_proto); + } + + return MVNETA_TX_L4_CSUM_NOT; -- 2.30.2