From: Jiawei Wang <jiaweiw@nvidia.com>
Date: Tue, 13 Oct 2020 14:11:48 +0000 (+0300)
Subject: common/mlx5: add glue function for mirroring
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4d23dd35f234eb3a7db9a114a146930d2f237028;p=dpdk.git

common/mlx5: add glue function for mirroring

The new DR destination array action is supported since the
rdma-core version v32.

Destination array action is used group DR actions to a single action,
And it can be used for mirroring packet and forward to every
destination (port or queue) in the array.

Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---

diff --git a/drivers/common/mlx5/linux/meson.build b/drivers/common/mlx5/linux/meson.build
index 1aa137dd18..9ef8e181d7 100644
--- a/drivers/common/mlx5/linux/meson.build
+++ b/drivers/common/mlx5/linux/meson.build
@@ -176,6 +176,8 @@ has_sym_args = [
 	'mlx5dv_dr_action_create_flow_sampler'],
 	[ 'HAVE_MLX5DV_DR_MEM_RECLAIM', 'infiniband/mlx5dv.h',
 	'mlx5dv_dr_domain_set_reclaim_device_memory'],
+	[ 'HAVE_MLX5_DR_CREATE_ACTION_DEST_ARRAY', 'infiniband/mlx5dv.h',
+	'mlx5dv_dr_action_create_dest_array'],
 	[ 'HAVE_DEVLINK', 'linux/devlink.h', 'DEVLINK_GENL_NAME' ],
 ]
 config = configuration_data()
diff --git a/drivers/common/mlx5/linux/mlx5_glue.c b/drivers/common/mlx5/linux/mlx5_glue.c
index 771a47c2c7..47b7e988a1 100644
--- a/drivers/common/mlx5/linux/mlx5_glue.c
+++ b/drivers/common/mlx5/linux/mlx5_glue.c
@@ -1064,8 +1064,8 @@ mlx5_glue_dr_dump_domain(FILE *file, void *domain)
 }
 
 static void *
-mlx5_glue_dr_create_flow_action_sampler(
-			struct mlx5dv_dr_flow_sampler_attr *attr)
+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);
@@ -1076,6 +1076,26 @@ mlx5_glue_dr_create_flow_action_sampler(
 #endif
 }
 
+static void *
+mlx5_glue_dr_action_create_dest_array
+			(void *domain,
+			 size_t num_dest,
+			 struct mlx5dv_dr_action_dest_attr *dests[])
+{
+#ifdef HAVE_MLX5_DR_CREATE_ACTION_DEST_ARRAY
+	return mlx5dv_dr_action_create_dest_array
+				(domain,
+				num_dest,
+				dests);
+#else
+	(void)domain;
+	(void)num_dest;
+	(void)dests;
+	errno = ENOTSUP;
+	return NULL;
+#endif
+}
+
 static int
 mlx5_glue_devx_query_eqn(struct ibv_context *ctx, uint32_t cpus,
 			 uint32_t *eqn)
@@ -1354,6 +1374,8 @@ const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue) {
 	.dr_reclaim_domain_memory = mlx5_glue_dr_reclaim_domain_memory,
 	.dr_create_flow_action_sampler =
 		mlx5_glue_dr_create_flow_action_sampler,
+	.dr_create_flow_action_dest_array =
+		mlx5_glue_dr_action_create_dest_array,
 	.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 a77d2393bb..42b2f61523 100644
--- a/drivers/common/mlx5/linux/mlx5_glue.h
+++ b/drivers/common/mlx5/linux/mlx5_glue.h
@@ -98,6 +98,24 @@ struct mlx5dv_dr_flow_sampler_attr {
 };
 #endif
 
+#ifndef HAVE_MLX5_DR_CREATE_ACTION_DEST_ARRAY
+enum mlx5dv_dr_action_dest_type {
+	MLX5DV_DR_ACTION_DEST,
+	MLX5DV_DR_ACTION_DEST_REFORMAT,
+};
+struct mlx5dv_dr_action_dest_reformat {
+	struct mlx5dv_dr_action *reformat;
+	struct mlx5dv_dr_action *dest;
+};
+struct mlx5dv_dr_action_dest_attr {
+	enum mlx5dv_dr_action_dest_type type;
+	union {
+		struct mlx5dv_dr_action *dest;
+		struct mlx5dv_dr_action_dest_reformat *dest_reformat;
+	};
+};
+#endif
+
 #ifndef HAVE_IBV_DEVX_EVENT
 struct mlx5dv_devx_event_channel { int fd; };
 struct mlx5dv_devx_async_event_hdr;
@@ -322,6 +340,10 @@ struct mlx5_glue {
 	void (*dv_free_pp)(struct mlx5dv_pp *pp);
 	void *(*dr_create_flow_action_sampler)
 			(struct mlx5dv_dr_flow_sampler_attr *attr);
+	void *(*dr_create_flow_action_dest_array)
+			(void *domain,
+			 size_t num_dest,
+			 struct mlx5dv_dr_action_dest_attr *dests[]);
 };
 
 extern const struct mlx5_glue *mlx5_glue;