From: Ariel Levkovich <lariel@xxxxxxxxxxxx> This patch introduces support for the GRE flow spec and allowing the creation of rules based on the protocol and key fields that are part of GRE protocol header. Reviewed-by: Mark Bloch <markb@xxxxxxxxxxxx> Signed-off-by: Ariel Levkovich <lariel@xxxxxxxxxxxx> Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx> --- drivers/infiniband/hw/mlx5/main.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index cd1c342be6e3..c7ce515e3393 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -2448,6 +2448,7 @@ static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val) #define LAST_TUNNEL_FIELD tunnel_id #define LAST_FLOW_TAG_FIELD tag_id #define LAST_DROP_FIELD size +#define LAST_DROP_FIELD size /* Field is the last supported field */ #define FIELDS_NOT_SUPPORTED(filter, field)\ @@ -2689,6 +2690,29 @@ static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c, MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport, ntohs(ib_spec->tcp_udp.val.dst_port)); break; + case IB_FLOW_SPEC_GRE: + if (ib_spec->gre.mask.c_ks_res0_ver) + return -EOPNOTSUPP; + + MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, + 0xff); + MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, + IPPROTO_GRE); + + MLX5_SET(fte_match_set_misc, misc_params_c, gre_protocol, + 0xffff); + MLX5_SET(fte_match_set_misc, misc_params_v, gre_protocol, + ntohs(ib_spec->gre.val.protocol)); + + memcpy(MLX5_ADDR_OF(fte_match_set_misc, misc_params_c, + gre_key_h), + &ib_spec->gre.mask.key, + sizeof(ib_spec->gre.mask.key)); + memcpy(MLX5_ADDR_OF(fte_match_set_misc, misc_params_v, + gre_key_h), + &ib_spec->gre.val.key, + sizeof(ib_spec->gre.val.key)); + break; case IB_FLOW_SPEC_VXLAN_TUNNEL: if (FIELDS_NOT_SUPPORTED(ib_spec->tunnel.mask, LAST_TUNNEL_FIELD)) -- 2.14.3 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
