From: Maor Dickman <ma...@nvidia.com>
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 <ma...@nvidia.com>
Reviewed-by: Roi Dayan <r...@nvidia.com>
Signed-off-by: Saeed Mahameed <sae...@nvidia.com>
---
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 2dded22a64a3..817c503693fc 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),
--
2.26.2
