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Commit ca0d4753 authored by Maor Gottlieb's avatar Maor Gottlieb Committed by Doug Ledford
Browse files

IB/mlx5: Add support in TOS and protocol to flow steering 



Add support to receive TOS or specific IPv4 protocol.

Signed-off-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent a72c6a2b

drivers/infiniband/hw/mlx5/main.c

+21 −1
Original line number Diff line number Diff line
@@ -1436,9 +1436,23 @@ static bool outer_header_zero(u32 *match_criteria) 
						  size - 1);

}



static void set_proto(void *outer_c, void *outer_v, u8 mask, u8 val)

{

	MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_protocol, mask);

	MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_protocol, val);

}



static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val)

{

	MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_ecn, mask);

	MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_ecn, val);

	MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_dscp, mask >> 2);

	MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_dscp, val >> 2);

}



#define LAST_ETH_FIELD vlan_tag

#define LAST_IB_FIELD sl

#define LAST_IPV4_FIELD dst_ip

#define LAST_IPV4_FIELD tos

#define LAST_IPV6_FIELD dst_ip

#define LAST_TCP_UDP_FIELD src_port
@@ -1524,6 +1538,12 @@ static int parse_flow_attr(u32 *match_c, u32 *match_v, 
				    dst_ipv4_dst_ipv6.ipv4_layout.ipv4),

		       &ib_spec->ipv4.val.dst_ip,

		       sizeof(ib_spec->ipv4.val.dst_ip));



		set_tos(outer_headers_c, outer_headers_v,

			ib_spec->ipv4.mask.tos, ib_spec->ipv4.val.tos);



		set_proto(outer_headers_c, outer_headers_v,

			  ib_spec->ipv4.mask.proto, ib_spec->ipv4.val.proto);

		break;

	case IB_FLOW_SPEC_IPV6:

		if (FIELDS_NOT_SUPPORTED(ib_spec->ipv6.mask, LAST_IPV6_FIELD))