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net/mlx5: DR, Set flex parser for TNL_MPLS dynamically
authorYevgeny Kliteynik <kliteyn@nvidia.com>
Sun, 7 Feb 2021 02:37:56 +0000 (04:37 +0200)
committerSaeed Mahameed <saeedm@nvidia.com>
Tue, 20 Apr 2021 03:17:37 +0000 (20:17 -0700)
Query the flex_parser id that's intended for TNL_MPLS
and use an appropriate flex parser for MPLS over UDP/GRE.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.h
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v0.c
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h

index 0561df8..dfb1e95 100644 (file)
@@ -110,6 +110,14 @@ int mlx5dr_cmd_query_device(struct mlx5_core_dev *mdev,
                caps->flex_parser_id_geneve_tlv_option_0 =
                        MLX5_CAP_GEN(mdev, flex_parser_id_geneve_tlv_option_0);
 
+       if (caps->flex_protocols & MLX5_FLEX_PARSER_MPLS_OVER_GRE_ENABLED)
+               caps->flex_parser_id_mpls_over_gre =
+                       MLX5_CAP_GEN(mdev, flex_parser_id_outer_first_mpls_over_gre);
+
+       if (caps->flex_protocols & mlx5_FLEX_PARSER_MPLS_OVER_UDP_ENABLED)
+               caps->flex_parser_id_mpls_over_udp =
+                       MLX5_CAP_GEN(mdev, flex_parser_id_outer_first_mpls_over_udp_label);
+
        caps->nic_rx_drop_address =
                MLX5_CAP64_FLOWTABLE(mdev, sw_steering_nic_rx_action_drop_icm_address);
        caps->nic_tx_drop_address =
index 0aa4a99..531eb69 100644 (file)
@@ -92,15 +92,17 @@ static bool dr_mask_is_tnl_gre_set(struct mlx5dr_match_misc *misc)
                misc->gre_k_present || misc->gre_s_present);
 }
 
-#define DR_MASK_IS_OUTER_MPLS_OVER_GRE_UDP_SET(_misc2, gre_udp) ( \
-       (_misc2).outer_first_mpls_over_##gre_udp##_label || \
-       (_misc2).outer_first_mpls_over_##gre_udp##_exp || \
-       (_misc2).outer_first_mpls_over_##gre_udp##_s_bos || \
-       (_misc2).outer_first_mpls_over_##gre_udp##_ttl)
-
-#define DR_MASK_IS_TNL_MPLS_SET(_misc2) ( \
-       DR_MASK_IS_OUTER_MPLS_OVER_GRE_UDP_SET((_misc2), gre) || \
-       DR_MASK_IS_OUTER_MPLS_OVER_GRE_UDP_SET((_misc2), udp))
+#define DR_MASK_IS_OUTER_MPLS_OVER_GRE_SET(_misc) (\
+       (_misc)->outer_first_mpls_over_gre_label || \
+       (_misc)->outer_first_mpls_over_gre_exp || \
+       (_misc)->outer_first_mpls_over_gre_s_bos || \
+       (_misc)->outer_first_mpls_over_gre_ttl)
+
+#define DR_MASK_IS_OUTER_MPLS_OVER_UDP_SET(_misc) (\
+       (_misc)->outer_first_mpls_over_udp_label || \
+       (_misc)->outer_first_mpls_over_udp_exp || \
+       (_misc)->outer_first_mpls_over_udp_s_bos || \
+       (_misc)->outer_first_mpls_over_udp_ttl)
 
 static bool
 dr_mask_is_vxlan_gpe_set(struct mlx5dr_match_misc3 *misc3)
@@ -240,6 +242,29 @@ static bool dr_mask_is_flex_parser_4_7_set(struct mlx5dr_match_misc4 *misc4)
                dr_mask_is_flex_parser_id_4_7_set(misc4->prog_sample_field_id_3));
 }
 
+static int dr_matcher_supp_tnl_mpls_over_gre(struct mlx5dr_cmd_caps *caps)
+{
+       return caps->flex_protocols & MLX5_FLEX_PARSER_MPLS_OVER_GRE_ENABLED;
+}
+
+static bool dr_mask_is_tnl_mpls_over_gre(struct mlx5dr_match_param *mask,
+                                        struct mlx5dr_domain *dmn)
+{
+       return DR_MASK_IS_OUTER_MPLS_OVER_GRE_SET(&mask->misc2) &&
+              dr_matcher_supp_tnl_mpls_over_gre(&dmn->info.caps);
+}
+
+static int dr_matcher_supp_tnl_mpls_over_udp(struct mlx5dr_cmd_caps *caps)
+{
+       return caps->flex_protocols & mlx5_FLEX_PARSER_MPLS_OVER_UDP_ENABLED;
+}
+
+static bool dr_mask_is_tnl_mpls_over_udp(struct mlx5dr_match_param *mask,
+                                        struct mlx5dr_domain *dmn)
+{
+       return DR_MASK_IS_OUTER_MPLS_OVER_UDP_SET(&mask->misc2) &&
+              dr_matcher_supp_tnl_mpls_over_udp(&dmn->info.caps);
+}
 int mlx5dr_matcher_select_builders(struct mlx5dr_matcher *matcher,
                                   struct mlx5dr_matcher_rx_tx *nic_matcher,
                                   enum mlx5dr_ipv outer_ipv,
@@ -381,9 +406,14 @@ static int dr_matcher_set_ste_builders(struct mlx5dr_matcher *matcher,
                        mlx5dr_ste_build_mpls(ste_ctx, &sb[idx++],
                                              &mask, inner, rx);
 
-               if (DR_MASK_IS_TNL_MPLS_SET(mask.misc2))
-                       mlx5dr_ste_build_tnl_mpls(ste_ctx, &sb[idx++],
-                                                 &mask, inner, rx);
+               if (dr_mask_is_tnl_mpls_over_gre(&mask, dmn))
+                       mlx5dr_ste_build_tnl_mpls_over_gre(ste_ctx, &sb[idx++],
+                                                          &mask, &dmn->info.caps,
+                                                          inner, rx);
+               else if (dr_mask_is_tnl_mpls_over_udp(&mask, dmn))
+                       mlx5dr_ste_build_tnl_mpls_over_udp(ste_ctx, &sb[idx++],
+                                                          &mask, &dmn->info.caps,
+                                                          inner, rx);
 
                if (dr_mask_is_icmp(&mask, dmn))
                        mlx5dr_ste_build_icmp(ste_ctx, &sb[idx++],
@@ -450,9 +480,14 @@ static int dr_matcher_set_ste_builders(struct mlx5dr_matcher *matcher,
                        mlx5dr_ste_build_mpls(ste_ctx, &sb[idx++],
                                              &mask, inner, rx);
 
-               if (DR_MASK_IS_TNL_MPLS_SET(mask.misc2))
-                       mlx5dr_ste_build_tnl_mpls(ste_ctx, &sb[idx++],
-                                                 &mask, inner, rx);
+               if (dr_mask_is_tnl_mpls_over_gre(&mask, dmn))
+                       mlx5dr_ste_build_tnl_mpls_over_gre(ste_ctx, &sb[idx++],
+                                                          &mask, &dmn->info.caps,
+                                                          inner, rx);
+               else if (dr_mask_is_tnl_mpls_over_udp(&mask, dmn))
+                       mlx5dr_ste_build_tnl_mpls_over_udp(ste_ctx, &sb[idx++],
+                                                          &mask, &dmn->info.caps,
+                                                          inner, rx);
        }
 
        if (matcher->match_criteria & DR_MATCHER_CRITERIA_MISC4) {
index 8d98341..6ae839b 100644 (file)
@@ -1087,14 +1087,28 @@ void mlx5dr_ste_build_tnl_gre(struct mlx5dr_ste_ctx *ste_ctx,
        ste_ctx->build_tnl_gre_init(sb, mask);
 }
 
-void mlx5dr_ste_build_tnl_mpls(struct mlx5dr_ste_ctx *ste_ctx,
-                              struct mlx5dr_ste_build *sb,
-                              struct mlx5dr_match_param *mask,
-                              bool inner, bool rx)
+void mlx5dr_ste_build_tnl_mpls_over_gre(struct mlx5dr_ste_ctx *ste_ctx,
+                                       struct mlx5dr_ste_build *sb,
+                                       struct mlx5dr_match_param *mask,
+                                       struct mlx5dr_cmd_caps *caps,
+                                       bool inner, bool rx)
+{
+       sb->rx = rx;
+       sb->inner = inner;
+       sb->caps = caps;
+       return ste_ctx->build_tnl_mpls_over_gre_init(sb, mask);
+}
+
+void mlx5dr_ste_build_tnl_mpls_over_udp(struct mlx5dr_ste_ctx *ste_ctx,
+                                       struct mlx5dr_ste_build *sb,
+                                       struct mlx5dr_match_param *mask,
+                                       struct mlx5dr_cmd_caps *caps,
+                                       bool inner, bool rx)
 {
        sb->rx = rx;
        sb->inner = inner;
-       ste_ctx->build_tnl_mpls_init(sb, mask);
+       sb->caps = caps;
+       return ste_ctx->build_tnl_mpls_over_udp_init(sb, mask);
 }
 
 void mlx5dr_ste_build_icmp(struct mlx5dr_ste_ctx *ste_ctx,
index 5fa268a..2d2dc68 100644 (file)
@@ -120,6 +120,8 @@ struct mlx5dr_ste_ctx {
        void DR_STE_CTX_BUILDER(mpls);
        void DR_STE_CTX_BUILDER(tnl_gre);
        void DR_STE_CTX_BUILDER(tnl_mpls);
+       void DR_STE_CTX_BUILDER(tnl_mpls_over_gre);
+       void DR_STE_CTX_BUILDER(tnl_mpls_over_udp);
        void DR_STE_CTX_BUILDER(icmp);
        void DR_STE_CTX_BUILDER(general_purpose);
        void DR_STE_CTX_BUILDER(eth_l4_misc);
index cf923a7..c62f64d 100644 (file)
@@ -1285,6 +1285,91 @@ dr_ste_v0_build_tnl_mpls_init(struct mlx5dr_ste_build *sb,
        sb->ste_build_tag_func = &dr_ste_v0_build_tnl_mpls_tag;
 }
 
+static int
+dr_ste_v0_build_tnl_mpls_over_udp_tag(struct mlx5dr_match_param *value,
+                                     struct mlx5dr_ste_build *sb,
+                                     u8 *tag)
+{
+       struct mlx5dr_match_misc2 *misc2 = &value->misc2;
+       u8 *parser_ptr;
+       u8 parser_id;
+       u32 mpls_hdr;
+
+       mpls_hdr = misc2->outer_first_mpls_over_udp_label << HDR_MPLS_OFFSET_LABEL;
+       misc2->outer_first_mpls_over_udp_label = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_udp_exp << HDR_MPLS_OFFSET_EXP;
+       misc2->outer_first_mpls_over_udp_exp = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_udp_s_bos << HDR_MPLS_OFFSET_S_BOS;
+       misc2->outer_first_mpls_over_udp_s_bos = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_udp_ttl << HDR_MPLS_OFFSET_TTL;
+       misc2->outer_first_mpls_over_udp_ttl = 0;
+
+       parser_id = sb->caps->flex_parser_id_mpls_over_udp;
+       parser_ptr = dr_ste_calc_flex_parser_offset(tag, parser_id);
+       *(__be32 *)parser_ptr = cpu_to_be32(mpls_hdr);
+
+       return 0;
+}
+
+static void
+dr_ste_v0_build_tnl_mpls_over_udp_init(struct mlx5dr_ste_build *sb,
+                                      struct mlx5dr_match_param *mask)
+{
+       dr_ste_v0_build_tnl_mpls_over_udp_tag(mask, sb, sb->bit_mask);
+       /* STEs with lookup type FLEX_PARSER_{0/1} includes
+        * flex parsers_{0-3}/{4-7} respectively.
+        */
+       sb->lu_type = sb->caps->flex_parser_id_mpls_over_udp > DR_STE_MAX_FLEX_0_ID ?
+                     DR_STE_V0_LU_TYPE_FLEX_PARSER_1 :
+                     DR_STE_V0_LU_TYPE_FLEX_PARSER_0;
+
+       sb->byte_mask = mlx5dr_ste_conv_bit_to_byte_mask(sb->bit_mask);
+       sb->ste_build_tag_func = &dr_ste_v0_build_tnl_mpls_over_udp_tag;
+}
+
+static int
+dr_ste_v0_build_tnl_mpls_over_gre_tag(struct mlx5dr_match_param *value,
+                                     struct mlx5dr_ste_build *sb,
+                                     u8 *tag)
+{
+       struct mlx5dr_match_misc2 *misc2 = &value->misc2;
+       u8 *parser_ptr;
+       u8 parser_id;
+       u32 mpls_hdr;
+
+       mpls_hdr = misc2->outer_first_mpls_over_gre_label << HDR_MPLS_OFFSET_LABEL;
+       misc2->outer_first_mpls_over_gre_label = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_gre_exp << HDR_MPLS_OFFSET_EXP;
+       misc2->outer_first_mpls_over_gre_exp = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_gre_s_bos << HDR_MPLS_OFFSET_S_BOS;
+       misc2->outer_first_mpls_over_gre_s_bos = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_gre_ttl << HDR_MPLS_OFFSET_TTL;
+       misc2->outer_first_mpls_over_gre_ttl = 0;
+
+       parser_id = sb->caps->flex_parser_id_mpls_over_gre;
+       parser_ptr = dr_ste_calc_flex_parser_offset(tag, parser_id);
+       *(__be32 *)parser_ptr = cpu_to_be32(mpls_hdr);
+
+       return 0;
+}
+
+static void
+dr_ste_v0_build_tnl_mpls_over_gre_init(struct mlx5dr_ste_build *sb,
+                                      struct mlx5dr_match_param *mask)
+{
+       dr_ste_v0_build_tnl_mpls_over_gre_tag(mask, sb, sb->bit_mask);
+
+       /* STEs with lookup type FLEX_PARSER_{0/1} includes
+        * flex parsers_{0-3}/{4-7} respectively.
+        */
+       sb->lu_type = sb->caps->flex_parser_id_mpls_over_gre > DR_STE_MAX_FLEX_0_ID ?
+                     DR_STE_V0_LU_TYPE_FLEX_PARSER_1 :
+                     DR_STE_V0_LU_TYPE_FLEX_PARSER_0;
+
+       sb->byte_mask = mlx5dr_ste_conv_bit_to_byte_mask(sb->bit_mask);
+       sb->ste_build_tag_func = &dr_ste_v0_build_tnl_mpls_over_gre_tag;
+}
+
 #define ICMP_TYPE_OFFSET_FIRST_DW      24
 #define ICMP_CODE_OFFSET_FIRST_DW      16
 
@@ -1697,6 +1782,8 @@ struct mlx5dr_ste_ctx ste_ctx_v0 = {
        .build_mpls_init                = &dr_ste_v0_build_mpls_init,
        .build_tnl_gre_init             = &dr_ste_v0_build_tnl_gre_init,
        .build_tnl_mpls_init            = &dr_ste_v0_build_tnl_mpls_init,
+       .build_tnl_mpls_over_udp_init   = &dr_ste_v0_build_tnl_mpls_over_udp_init,
+       .build_tnl_mpls_over_gre_init   = &dr_ste_v0_build_tnl_mpls_over_gre_init,
        .build_icmp_init                = &dr_ste_v0_build_icmp_init,
        .build_general_purpose_init     = &dr_ste_v0_build_general_purpose_init,
        .build_eth_l4_misc_init         = &dr_ste_v0_build_eth_l4_misc_init,
index f15a15d..ad062bf 100644 (file)
@@ -1306,6 +1306,88 @@ static void dr_ste_v1_build_tnl_mpls_init(struct mlx5dr_ste_build *sb,
        sb->ste_build_tag_func = &dr_ste_v1_build_tnl_mpls_tag;
 }
 
+static int dr_ste_v1_build_tnl_mpls_over_udp_tag(struct mlx5dr_match_param *value,
+                                                struct mlx5dr_ste_build *sb,
+                                                u8 *tag)
+{
+       struct mlx5dr_match_misc2 *misc2 = &value->misc2;
+       u8 *parser_ptr;
+       u8 parser_id;
+       u32 mpls_hdr;
+
+       mpls_hdr = misc2->outer_first_mpls_over_udp_label << HDR_MPLS_OFFSET_LABEL;
+       misc2->outer_first_mpls_over_udp_label = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_udp_exp << HDR_MPLS_OFFSET_EXP;
+       misc2->outer_first_mpls_over_udp_exp = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_udp_s_bos << HDR_MPLS_OFFSET_S_BOS;
+       misc2->outer_first_mpls_over_udp_s_bos = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_udp_ttl << HDR_MPLS_OFFSET_TTL;
+       misc2->outer_first_mpls_over_udp_ttl = 0;
+
+       parser_id = sb->caps->flex_parser_id_mpls_over_udp;
+       parser_ptr = dr_ste_calc_flex_parser_offset(tag, parser_id);
+       *(__be32 *)parser_ptr = cpu_to_be32(mpls_hdr);
+
+       return 0;
+}
+
+static void dr_ste_v1_build_tnl_mpls_over_udp_init(struct mlx5dr_ste_build *sb,
+                                                  struct mlx5dr_match_param *mask)
+{
+       dr_ste_v1_build_tnl_mpls_over_udp_tag(mask, sb, sb->bit_mask);
+
+       /* STEs with lookup type FLEX_PARSER_{0/1} includes
+        * flex parsers_{0-3}/{4-7} respectively.
+        */
+       sb->lu_type = sb->caps->flex_parser_id_mpls_over_udp > DR_STE_MAX_FLEX_0_ID ?
+                     DR_STE_V1_LU_TYPE_FLEX_PARSER_1 :
+                     DR_STE_V1_LU_TYPE_FLEX_PARSER_0;
+
+       sb->byte_mask = mlx5dr_ste_conv_bit_to_byte_mask(sb->bit_mask);
+       sb->ste_build_tag_func = &dr_ste_v1_build_tnl_mpls_over_udp_tag;
+}
+
+static int dr_ste_v1_build_tnl_mpls_over_gre_tag(struct mlx5dr_match_param *value,
+                                                struct mlx5dr_ste_build *sb,
+                                                u8 *tag)
+{
+       struct mlx5dr_match_misc2 *misc2 = &value->misc2;
+       u8 *parser_ptr;
+       u8 parser_id;
+       u32 mpls_hdr;
+
+       mpls_hdr = misc2->outer_first_mpls_over_gre_label << HDR_MPLS_OFFSET_LABEL;
+       misc2->outer_first_mpls_over_gre_label = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_gre_exp << HDR_MPLS_OFFSET_EXP;
+       misc2->outer_first_mpls_over_gre_exp = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_gre_s_bos << HDR_MPLS_OFFSET_S_BOS;
+       misc2->outer_first_mpls_over_gre_s_bos = 0;
+       mpls_hdr |= misc2->outer_first_mpls_over_gre_ttl << HDR_MPLS_OFFSET_TTL;
+       misc2->outer_first_mpls_over_gre_ttl = 0;
+
+       parser_id = sb->caps->flex_parser_id_mpls_over_gre;
+       parser_ptr = dr_ste_calc_flex_parser_offset(tag, parser_id);
+       *(__be32 *)parser_ptr = cpu_to_be32(mpls_hdr);
+
+       return 0;
+}
+
+static void dr_ste_v1_build_tnl_mpls_over_gre_init(struct mlx5dr_ste_build *sb,
+                                                  struct mlx5dr_match_param *mask)
+{
+       dr_ste_v1_build_tnl_mpls_over_gre_tag(mask, sb, sb->bit_mask);
+
+       /* STEs with lookup type FLEX_PARSER_{0/1} includes
+        * flex parsers_{0-3}/{4-7} respectively.
+        */
+       sb->lu_type = sb->caps->flex_parser_id_mpls_over_gre > DR_STE_MAX_FLEX_0_ID ?
+                     DR_STE_V1_LU_TYPE_FLEX_PARSER_1 :
+                     DR_STE_V1_LU_TYPE_FLEX_PARSER_0;
+
+       sb->byte_mask = mlx5dr_ste_conv_bit_to_byte_mask(sb->bit_mask);
+       sb->ste_build_tag_func = &dr_ste_v1_build_tnl_mpls_over_gre_tag;
+}
+
 static int dr_ste_v1_build_icmp_tag(struct mlx5dr_match_param *value,
                                    struct mlx5dr_ste_build *sb,
                                    u8 *tag)
@@ -1679,6 +1761,8 @@ struct mlx5dr_ste_ctx ste_ctx_v1 = {
        .build_mpls_init                = &dr_ste_v1_build_mpls_init,
        .build_tnl_gre_init             = &dr_ste_v1_build_tnl_gre_init,
        .build_tnl_mpls_init            = &dr_ste_v1_build_tnl_mpls_init,
+       .build_tnl_mpls_over_udp_init   = &dr_ste_v1_build_tnl_mpls_over_udp_init,
+       .build_tnl_mpls_over_gre_init   = &dr_ste_v1_build_tnl_mpls_over_gre_init,
        .build_icmp_init                = &dr_ste_v1_build_icmp_init,
        .build_general_purpose_init     = &dr_ste_v1_build_general_purpose_init,
        .build_eth_l4_misc_init         = &dr_ste_v1_build_eth_l4_misc_init,
index 3c07ec6..8eed8ce 100644 (file)
@@ -393,6 +393,16 @@ void mlx5dr_ste_build_tnl_mpls(struct mlx5dr_ste_ctx *ste_ctx,
                               struct mlx5dr_ste_build *sb,
                               struct mlx5dr_match_param *mask,
                               bool inner, bool rx);
+void mlx5dr_ste_build_tnl_mpls_over_gre(struct mlx5dr_ste_ctx *ste_ctx,
+                                       struct mlx5dr_ste_build *sb,
+                                       struct mlx5dr_match_param *mask,
+                                       struct mlx5dr_cmd_caps *caps,
+                                       bool inner, bool rx);
+void mlx5dr_ste_build_tnl_mpls_over_udp(struct mlx5dr_ste_ctx *ste_ctx,
+                                       struct mlx5dr_ste_build *sb,
+                                       struct mlx5dr_match_param *mask,
+                                       struct mlx5dr_cmd_caps *caps,
+                                       bool inner, bool rx);
 void mlx5dr_ste_build_icmp(struct mlx5dr_ste_ctx *ste_ctx,
                           struct mlx5dr_ste_build *sb,
                           struct mlx5dr_match_param *mask,
@@ -723,6 +733,8 @@ struct mlx5dr_cmd_caps {
        u8 flex_parser_id_icmpv6_dw0;
        u8 flex_parser_id_icmpv6_dw1;
        u8 flex_parser_id_geneve_tlv_option_0;
+       u8 flex_parser_id_mpls_over_gre;
+       u8 flex_parser_id_mpls_over_udp;
        u8 max_ft_level;
        u16 roce_min_src_udp;
        u8 num_esw_ports;