[dpdk-dev] [PATCH v3 2/7] common/mlx5: glue for sample action

[Jiawei Wang <jiaweiw@mellanox.com>]

rdma-core introduce a new DR sample action.

Add the rdma-core commands in glue to create this action.

Sample action is used for creating the sample object to implement
the sampling/mirroring function.

Signed-off-by: Jiawei Wang <jiaweiw@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
---
 drivers/common/mlx5/Makefile          |  5 +++++
 drivers/common/mlx5/linux/meson.build |  2 ++
 drivers/common/mlx5/linux/mlx5_glue.c | 15 +++++++++++++++
 drivers/common/mlx5/linux/mlx5_glue.h | 12 ++++++++++++
 4 files changed, 34 insertions(+)

diff --git a/drivers/common/mlx5/Makefile b/drivers/common/mlx5/Makefile
index f6c762b..4c1484c 100644
--- a/drivers/common/mlx5/Makefile
+++ b/drivers/common/mlx5/Makefile
@@ -192,6 +192,11 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
 		func mlx5dv_dump_dr_domain \
 		$(AUTOCONF_OUTPUT)
 	$Q sh -- '$<' '$@' \
+		HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE \
+		infiniband/mlx5dv.h \
+		func mlx5dv_dr_action_create_flow_sampler \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
 		HAVE_MLX5DV_MMAP_GET_NC_PAGES_CMD \
 		infiniband/mlx5dv.h \
 		enum MLX5_MMAP_GET_NC_PAGES_CMD \
diff --git a/drivers/common/mlx5/linux/meson.build b/drivers/common/mlx5/linux/meson.build
index 2294213..0f08318 100644
--- a/drivers/common/mlx5/linux/meson.build
+++ b/drivers/common/mlx5/linux/meson.build
@@ -162,6 +162,8 @@ has_sym_args = [
 	'RDMA_NLDEV_ATTR_NDEV_INDEX' ],
 	[ 'HAVE_MLX5_DR_FLOW_DUMP', 'infiniband/mlx5dv.h',
 	'mlx5dv_dump_dr_domain'],
+	[ 'HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE', 'infiniband/mlx5dv.h',
+	'mlx5dv_dr_action_create_flow_sampler'],
 	[ 'HAVE_MLX5DV_DR_MEM_RECLAIM', 'infiniband/mlx5dv.h',
 	'mlx5dv_dr_domain_set_reclaim_device_memory'],
 	[ 'HAVE_DEVLINK', 'linux/devlink.h', 'DEVLINK_GENL_NAME' ],
diff --git a/drivers/common/mlx5/linux/mlx5_glue.c b/drivers/common/mlx5/linux/mlx5_glue.c
index 048207e..98b3e71 100644
--- a/drivers/common/mlx5/linux/mlx5_glue.c
+++ b/drivers/common/mlx5/linux/mlx5_glue.c
@@ -1059,6 +1059,19 @@
 #endif
 }
 
+static void *
+mlx5_glue_dr_create_flow_action_sampler(
+			struct mlx5dv_dr_flow_sampler_attr *attr)
+{
+#ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE
+	return mlx5dv_dr_action_create_flow_sampler(attr);
+#else
+	(void)attr;
+	errno = ENOTSUP;
+	return NULL;
+#endif
+}
+
 static int
 mlx5_glue_devx_query_eqn(struct ibv_context *ctx, uint32_t cpus,
 			 uint32_t *eqn)
@@ -1308,6 +1321,8 @@
 	.devx_port_query = mlx5_glue_devx_port_query,
 	.dr_dump_domain = mlx5_glue_dr_dump_domain,
 	.dr_reclaim_domain_memory = mlx5_glue_dr_reclaim_domain_memory,
+	.dr_create_flow_action_sampler =
+		mlx5_glue_dr_create_flow_action_sampler,
 	.devx_query_eqn = mlx5_glue_devx_query_eqn,
 	.devx_create_event_channel = mlx5_glue_devx_create_event_channel,
 	.devx_destroy_event_channel = mlx5_glue_devx_destroy_event_channel,
diff --git a/drivers/common/mlx5/linux/mlx5_glue.h b/drivers/common/mlx5/linux/mlx5_glue.h
index 069d854..11b95c5 100644
--- a/drivers/common/mlx5/linux/mlx5_glue.h
+++ b/drivers/common/mlx5/linux/mlx5_glue.h
@@ -77,6 +77,7 @@
 #ifndef HAVE_MLX5DV_DR
 enum  mlx5dv_dr_domain_type { unused, };
 struct mlx5dv_dr_domain;
+struct mlx5dv_dr_action;
 #endif
 
 #ifndef HAVE_MLX5DV_DR_DEVX_PORT
@@ -87,6 +88,15 @@
 struct mlx5dv_dr_flow_meter_attr;
 #endif
 
+#ifndef HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE
+struct mlx5dv_dr_flow_sampler_attr {
+	uint32_t sample_ratio;
+	void *default_next_table;
+	size_t num_sample_actions;
+	struct mlx5dv_dr_action **sample_actions;
+};
+#endif
+
 #ifndef HAVE_IBV_DEVX_EVENT
 struct mlx5dv_devx_event_channel { int fd; };
 struct mlx5dv_devx_async_event_hdr;
@@ -304,6 +314,8 @@ struct mlx5_glue {
 			 struct mlx5dv_devx_async_event_hdr *event_data,
 			 size_t event_resp_len);
 	void (*dr_reclaim_domain_memory)(void *domain, uint32_t enable);
+	void *(*dr_create_flow_action_sampler)
+			(struct mlx5dv_dr_flow_sampler_attr *attr);
 };
 
 extern const struct mlx5_glue *mlx5_glue;
-- 
1.8.3.1