add mlx5 APIs for single flow dump feature

Signed-off-by: Haifei Luo <haif...@nvidia.com>
---
 drivers/common/mlx5/linux/meson.build           |  2 ++
 drivers/common/mlx5/linux/mlx5_glue.c           | 13 +++++++++++++
 drivers/common/mlx5/linux/mlx5_glue.h           |  1 +
 drivers/common/mlx5/mlx5_devx_cmds.c            | 14 ++++++++++++++
 drivers/common/mlx5/mlx5_devx_cmds.h            |  2 ++
 drivers/common/mlx5/rte_common_mlx5_exports.def |  1 +
 drivers/common/mlx5/version.map                 |  1 +
 7 files changed, 34 insertions(+)

diff --git a/drivers/common/mlx5/linux/meson.build 
b/drivers/common/mlx5/linux/meson.build
index 220de35..3f42163 100644
--- a/drivers/common/mlx5/linux/meson.build
+++ b/drivers/common/mlx5/linux/meson.build
@@ -186,6 +186,8 @@ has_sym_args = [
        'mlx5dv_dr_action_create_aso' ],
        [ 'HAVE_INFINIBAND_VERBS_H', 'infiniband/verbs.h',
        'INFINIBAND_VERBS_H' ],
+       [ 'HAVE_MLX5_DR_FLOW_DUMP_RULE', 'infiniband/mlx5dv.h',
+       'mlx5dv_dump_dr_rule' ],
 ]
 config = configuration_data()
 foreach arg:has_sym_args
diff --git a/drivers/common/mlx5/linux/mlx5_glue.c 
b/drivers/common/mlx5/linux/mlx5_glue.c
index 964f7e7..d3bd645 100644
--- a/drivers/common/mlx5/linux/mlx5_glue.c
+++ b/drivers/common/mlx5/linux/mlx5_glue.c
@@ -1101,6 +1101,18 @@
 }
 
 static int
+mlx5_glue_dr_dump_single_rule(FILE *file, void *rule)
+{
+#ifdef HAVE_MLX5_DR_FLOW_DUMP_RULE
+       return mlx5dv_dump_dr_rule(file, rule);
+#else
+       RTE_SET_USED(file);
+       RTE_SET_USED(rule);
+       return -ENOTSUP;
+#endif
+}
+
+static int
 mlx5_glue_dr_dump_domain(FILE *file, void *domain)
 {
 #ifdef HAVE_MLX5_DR_FLOW_DUMP
@@ -1423,6 +1435,7 @@
        .devx_wq_query = mlx5_glue_devx_wq_query,
        .devx_port_query = mlx5_glue_devx_port_query,
        .dr_dump_domain = mlx5_glue_dr_dump_domain,
+       .dr_dump_rule = mlx5_glue_dr_dump_single_rule,
        .dr_reclaim_domain_memory = mlx5_glue_dr_reclaim_domain_memory,
        .dr_create_flow_action_sampler =
                mlx5_glue_dr_create_flow_action_sampler,
diff --git a/drivers/common/mlx5/linux/mlx5_glue.h 
b/drivers/common/mlx5/linux/mlx5_glue.h
index 9e385be..97462e9 100644
--- a/drivers/common/mlx5/linux/mlx5_glue.h
+++ b/drivers/common/mlx5/linux/mlx5_glue.h
@@ -313,6 +313,7 @@ struct mlx5_glue {
                               uint32_t port_num,
                               struct mlx5dv_devx_port *mlx5_devx_port);
        int (*dr_dump_domain)(FILE *file, void *domain);
+       int (*dr_dump_rule)(FILE *file, void *rule);
        int (*devx_query_eqn)(struct ibv_context *context, uint32_t cpus,
                              uint32_t *eqn);
        struct mlx5dv_devx_event_channel *(*devx_create_event_channel)
diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c 
b/drivers/common/mlx5/mlx5_devx_cmds.c
index c90e020..c0b6fdb 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -1579,6 +1579,20 @@ struct mlx5_devx_obj *
        return -ret;
 }
 
+int
+mlx5_devx_cmd_flow_single_dump(void *rule_info __rte_unused,
+                       FILE *file __rte_unused)
+{
+       int ret = 0;
+#ifdef HAVE_MLX5_DR_FLOW_DUMP_RULE
+       if (rule_info)
+               ret = mlx5_glue->dr_dump_rule(file, rule_info);
+#else
+       ret = ENOTSUP;
+#endif
+       return -ret;
+}
+
 /*
  * Create CQ using DevX API.
  *
diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h 
b/drivers/common/mlx5/mlx5_devx_cmds.h
index 2826c0b..f587d0c 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -474,6 +474,8 @@ struct mlx5_devx_obj *mlx5_devx_cmd_create_tis(void *ctx,
 int mlx5_devx_cmd_flow_dump(void *fdb_domain, void *rx_domain, void *tx_domain,
                            FILE *file);
 __rte_internal
+int mlx5_devx_cmd_flow_single_dump(void *rule, FILE *file);
+__rte_internal
 struct mlx5_devx_obj *mlx5_devx_cmd_create_cq(void *ctx,
                                              struct mlx5_devx_cq_attr *attr);
 __rte_internal
diff --git a/drivers/common/mlx5/rte_common_mlx5_exports.def 
b/drivers/common/mlx5/rte_common_mlx5_exports.def
index fd62b80..0e6d6d3 100644
--- a/drivers/common/mlx5/rte_common_mlx5_exports.def
+++ b/drivers/common/mlx5/rte_common_mlx5_exports.def
@@ -20,6 +20,7 @@ EXPORTS
        mlx5_devx_cmd_flow_counter_alloc
        mlx5_devx_cmd_flow_counter_query
        mlx5_devx_cmd_flow_dump
+       mlx5_devx_cmd_flow_single_dump
        mlx5_devx_cmd_mkey_create
        mlx5_devx_cmd_modify_qp_state
        mlx5_devx_cmd_modify_rq
diff --git a/drivers/common/mlx5/version.map b/drivers/common/mlx5/version.map
index 91f3fa5..4d49011 100644
--- a/drivers/common/mlx5/version.map
+++ b/drivers/common/mlx5/version.map
@@ -28,6 +28,7 @@ INTERNAL {
        mlx5_devx_cmd_flow_counter_alloc;
        mlx5_devx_cmd_flow_counter_query;
        mlx5_devx_cmd_flow_dump;
+       mlx5_devx_cmd_flow_single_dump;
        mlx5_devx_cmd_mkey_create;
        mlx5_devx_cmd_modify_qp_state;
        mlx5_devx_cmd_modify_rq;
-- 
1.8.3.1

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