IB/mlx5: Enable flow steering for IPv6 traffic

Enable flow steering for IPv6 traffic by using an IPv6 spec.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 9b6d283..8f832fc 100644 (file)
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1454,6 +1454,32 @@ static int parse_flow_attr(u32 *match_c, u32 *match_v,
                       &ib_spec->ipv4.val.dst_ip,
                       sizeof(ib_spec->ipv4.val.dst_ip));
                break;
+       case IB_FLOW_SPEC_IPV6:
+               if (ib_spec->size != sizeof(ib_spec->ipv6))
+                       return -EINVAL;
+
+               MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c,
+                        ethertype, 0xffff);
+               MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v,
+                        ethertype, ETH_P_IPV6);
+
+               memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_c,
+                                   src_ipv4_src_ipv6.ipv6_layout.ipv6),
+                      &ib_spec->ipv6.mask.src_ip,
+                      sizeof(ib_spec->ipv6.mask.src_ip));
+               memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_v,
+                                   src_ipv4_src_ipv6.ipv6_layout.ipv6),
+                      &ib_spec->ipv6.val.src_ip,
+                      sizeof(ib_spec->ipv6.val.src_ip));
+               memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_c,
+                                   dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
+                      &ib_spec->ipv6.mask.dst_ip,
+                      sizeof(ib_spec->ipv6.mask.dst_ip));
+               memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_v,
+                                   dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
+                      &ib_spec->ipv6.val.dst_ip,
+                      sizeof(ib_spec->ipv6.val.dst_ip));
+               break;
        case IB_FLOW_SPEC_TCP:
                if (ib_spec->size != sizeof(ib_spec->tcp_udp))
                        return -EINVAL;