diff options
author | Yevgeny Kliteynik <kliteyn@nvidia.com> | 2020-11-24 20:48:09 +0300 |
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committer | Saeed Mahameed <saeedm@nvidia.com> | 2021-04-20 06:17:28 +0300 |
commit | 160e9cb37a8496edfe4ce74abe33ade103f59db2 (patch) | |
tree | 286265888764c79329ddd415f3bca628db81b4b7 /drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c | |
parent | 323b91acc1898281da8c5cec32a50aa272ef5f5a (diff) | |
download | linux-160e9cb37a8496edfe4ce74abe33ade103f59db2.tar.xz |
net/mlx5: DR, Add support for dynamic flex parser
Flex parser is a HW parser that can support protocols that are not
natively supported by the HCA, such as Geneve (TLV options) and GTP-U.
There are 8 such parsers, and each of them can be assigned to parse a
specific set of protocols.
This patch adds misc4 match params which allows using a correct flex parser
that was programmed to the required protocol.
Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c index 15673cd10039..3a7576125404 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c @@ -199,6 +199,42 @@ static bool dr_mask_is_gvmi_or_qpn_set(struct mlx5dr_match_misc *misc) return (misc->source_sqn || misc->source_port); } +static bool dr_mask_is_flex_parser_id_0_3_set(u32 flex_parser_id, + u32 flex_parser_value) +{ + if (flex_parser_id) + return flex_parser_id <= DR_STE_MAX_FLEX_0_ID; + + /* Using flex_parser 0 means that id is zero, thus value must be set. */ + return flex_parser_value; +} + +static bool dr_mask_is_flex_parser_0_3_set(struct mlx5dr_match_misc4 *misc4) +{ + return (dr_mask_is_flex_parser_id_0_3_set(misc4->prog_sample_field_id_0, + misc4->prog_sample_field_value_0) || + dr_mask_is_flex_parser_id_0_3_set(misc4->prog_sample_field_id_1, + misc4->prog_sample_field_value_1) || + dr_mask_is_flex_parser_id_0_3_set(misc4->prog_sample_field_id_2, + misc4->prog_sample_field_value_2) || + dr_mask_is_flex_parser_id_0_3_set(misc4->prog_sample_field_id_3, + misc4->prog_sample_field_value_3)); +} + +static bool dr_mask_is_flex_parser_id_4_7_set(u32 flex_parser_id) +{ + return flex_parser_id > DR_STE_MAX_FLEX_0_ID && + flex_parser_id <= DR_STE_MAX_FLEX_1_ID; +} + +static bool dr_mask_is_flex_parser_4_7_set(struct mlx5dr_match_misc4 *misc4) +{ + return (dr_mask_is_flex_parser_id_4_7_set(misc4->prog_sample_field_id_0) || + dr_mask_is_flex_parser_id_4_7_set(misc4->prog_sample_field_id_1) || + dr_mask_is_flex_parser_id_4_7_set(misc4->prog_sample_field_id_2) || + dr_mask_is_flex_parser_id_4_7_set(misc4->prog_sample_field_id_3)); +} + int mlx5dr_matcher_select_builders(struct mlx5dr_matcher *matcher, struct mlx5dr_matcher_rx_tx *nic_matcher, enum mlx5dr_ipv outer_ipv, @@ -251,6 +287,9 @@ static int dr_matcher_set_ste_builders(struct mlx5dr_matcher *matcher, if (matcher->match_criteria & DR_MATCHER_CRITERIA_MISC3) mask.misc3 = matcher->mask.misc3; + if (matcher->match_criteria & DR_MATCHER_CRITERIA_MISC4) + mask.misc4 = matcher->mask.misc4; + ret = mlx5dr_ste_build_pre_check(dmn, matcher->match_criteria, &matcher->mask, NULL); if (ret) @@ -408,6 +447,17 @@ static int dr_matcher_set_ste_builders(struct mlx5dr_matcher *matcher, mlx5dr_ste_build_tnl_mpls(ste_ctx, &sb[idx++], &mask, inner, rx); } + + if (matcher->match_criteria & DR_MATCHER_CRITERIA_MISC4) { + if (dr_mask_is_flex_parser_0_3_set(&mask.misc4)) + mlx5dr_ste_build_flex_parser_0(ste_ctx, &sb[idx++], + &mask, false, rx); + + if (dr_mask_is_flex_parser_4_7_set(&mask.misc4)) + mlx5dr_ste_build_flex_parser_1(ste_ctx, &sb[idx++], + &mask, false, rx); + } + /* Empty matcher, takes all */ if (matcher->match_criteria == DR_MATCHER_CRITERIA_EMPTY) mlx5dr_ste_build_empty_always_hit(&sb[idx++], rx); |