From 748cde9a3802e1ababedabbf759b3eedbaeaba52 Mon Sep 17 00:00:00 2001 From: Maor Dickman Date: Thu, 3 Sep 2020 11:02:10 +0300 Subject: [PATCH] net/mlx5e: Add IPv6 traffic class (DSCP) header rewrite support Add support for rewriting of IPV6 DSCP part of traffic class field. Next commands, for example, can be used to offload rewrite action: OVS: $ ovs-ofctl add-flow ovs-sriov "tcpv6, in_port=REP, \ actions=mod_nw_tos:68, output:NIC" iproute2: $ tc filter add dev REP ingress protocol ipv6 prio 1 flower skip_sw \ ip_proto tcp \ action pedit ex munge ip6 traffic_class set 68 retain 0xfc pipe \ action mirred egress redirect dev NIC Signed-off-by: Maor Dickman Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 2dded22a64a34..817c503693fcf 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -2615,6 +2615,7 @@ static struct mlx5_fields fields[] = { OFFLOAD(DIPV6_31_0, 32, U32_MAX, ip6.daddr.s6_addr32[3], 0, dst_ipv4_dst_ipv6.ipv6_layout.ipv6[12]), OFFLOAD(IPV6_HOPLIMIT, 8, U8_MAX, ip6.hop_limit, 0, ttl_hoplimit), + OFFLOAD(IP_DSCP, 16, 0xc00f, ip6, 0, ip_dscp), OFFLOAD(TCP_SPORT, 16, U16_MAX, tcp.source, 0, tcp_sport), OFFLOAD(TCP_DPORT, 16, U16_MAX, tcp.dest, 0, tcp_dport), -- 2.30.2