[dpdk-dev] [RFC 1/3] common/mlx5: add default miss action

[Shiri Kuzin]

Add dv_create_action_default_miss wrapper function
for the action added to the rdma-core
MLX5DV_FLOW_ACTION_DEFAULT_MISS.

When a packet matches MLX5DV_FLOW_ACTION_DEFAULT_MISS
action it is steered to the default miss of the verbs
steering domain.

Signed-off-by: Shiri Kuzin <shirik at mellanox.com>
---
 drivers/common/mlx5/Makefile    |  5 +++++
 drivers/common/mlx5/meson.build |  2 ++
 drivers/common/mlx5/mlx5_glue.c | 13 +++++++++++++
 drivers/common/mlx5/mlx5_glue.h |  1 +
 4 files changed, 21 insertions(+)

diff --git a/drivers/common/mlx5/Makefile b/drivers/common/mlx5/Makefile
index 0d8cc1b..c5c979a 100644
--- a/drivers/common/mlx5/Makefile
+++ b/drivers/common/mlx5/Makefile
@@ -153,6 +153,11 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
 		enum MLX5DV_FLOW_ACTION_COUNTERS_DEVX \
 		$(AUTOCONF_OUTPUT)
 	$Q sh -- '$<' '$@' \
+		HAVE_MLX5_DR_CREATE_ACTION_DEFAULT_MISS \
+		infiniband/mlx5dv.h \
+		enum MLX5DV_FLOW_ACTION_DEFAULT_MISS \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
 		HAVE_IBV_DEVX_ASYNC \
 		infiniband/mlx5dv.h \
 		func mlx5dv_devx_obj_query_async \
diff --git a/drivers/common/mlx5/meson.build b/drivers/common/mlx5/meson.build
index 5a802ba..9ba90b7 100644
--- a/drivers/common/mlx5/meson.build
+++ b/drivers/common/mlx5/meson.build
@@ -120,6 +120,8 @@ has_sym_args = [
 	'mlx5dv_devx_obj_create' ],
 	[ 'HAVE_IBV_FLOW_DEVX_COUNTERS', 'infiniband/mlx5dv.h',
 	'MLX5DV_FLOW_ACTION_COUNTERS_DEVX' ],
+	[ 'HAVE_MLX5_DR_CREATE_ACTION_DEFAULT_MISS', 'infiniband/mlx5dv.h',
+	'MLX5DV_FLOW_ACTION_DEFAULT_MISS' ],
 	[ 'HAVE_IBV_DEVX_ASYNC', 'infiniband/mlx5dv.h',
 	'mlx5dv_devx_obj_query_async' ],
 	[ 'HAVE_IBV_DEVX_QP', 'infiniband/mlx5dv.h',
diff --git a/drivers/common/mlx5/mlx5_glue.c b/drivers/common/mlx5/mlx5_glue.c
index f270f67..62e15cb 100644
--- a/drivers/common/mlx5/mlx5_glue.c
+++ b/drivers/common/mlx5/mlx5_glue.c
@@ -795,6 +795,17 @@
 #endif
 }
 
+static void *
+mlx5_glue_dr_create_flow_action_default_miss(void)
+{
+#if defined(HAVE_MLXDV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_DEFAULT_MISS)
+	return mlx5dv_dr_action_create_default_miss();
+#else
+	errno = ENOTSUP;
+	return NULL;
+#endif
+}
+
 static int
 mlx5_glue_dv_destroy_flow(void *flow_id)
 {
@@ -1264,6 +1275,8 @@
 	.dv_create_flow_action_tag =  mlx5_glue_dv_create_flow_action_tag,
 	.dv_create_flow_action_meter = mlx5_glue_dv_create_flow_action_meter,
 	.dv_modify_flow_action_meter = mlx5_glue_dv_modify_flow_action_meter,
+	.dr_create_flow_action_default_miss = 
+		mlx5_glue_dr_create_flow_action_default_miss,
 	.dv_destroy_flow = mlx5_glue_dv_destroy_flow,
 	.dv_destroy_flow_matcher = mlx5_glue_dv_destroy_flow_matcher,
 	.dv_open_device = mlx5_glue_dv_open_device,
diff --git a/drivers/common/mlx5/mlx5_glue.h b/drivers/common/mlx5/mlx5_glue.h
index 81d6a22..f5bec6a 100644
--- a/drivers/common/mlx5/mlx5_glue.h
+++ b/drivers/common/mlx5/mlx5_glue.h
@@ -237,6 +237,7 @@ struct mlx5_glue {
 		(struct mlx5dv_dr_flow_meter_attr *attr);
 	int (*dv_modify_flow_action_meter)(void *action,
 		struct mlx5dv_dr_flow_meter_attr *attr, uint64_t modify_bits);
+	void *(*dr_create_flow_action_default_miss)();
 	int (*dv_destroy_flow)(void *flow);
 	int (*dv_destroy_flow_matcher)(void *matcher);
 	struct ibv_context *(*dv_open_device)(struct ibv_device *device);
-- 
1.8.3.1