From: Bing Zhao <bingz@nvidia.com>
Date: Wed, 5 May 2021 12:23:16 +0000 (+0300)
Subject: common/mlx5: add DevX connection tracking objects creation
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8207e84b21de6dca0f2b27a3f2bdd4cc2c420588;p=dpdk.git

common/mlx5: add DevX connection tracking objects creation

Adding support for connection tracking ASO creation via Devx command.
Right now only bulk creation is supported.

By default, the objects with zero contents will be created. Before
using a single object, the modification via posting a WQE to the ASO
CT SQ is needed.

Signed-off-by: Bing Zhao <bingz@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index 9d0ed6ffe4..f5914bce32 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -2350,6 +2350,56 @@ mlx5_devx_cmd_create_flow_meter_aso_obj(void *ctx, uint32_t pd,
 	return flow_meter_aso_obj;
 }
 
+/*
+ * Create general object of type CONN_TRACK_OFFLOAD using DevX API.
+ *
+ * @param[in] ctx
+ *   Context returned from mlx5 open_device() glue function.
+ * @param [in] pd
+ *   PD value to associate the CONN_TRACK_OFFLOAD ASO object with.
+ * @param [in] log_obj_size
+ *   log_obj_size to allocate its power of 2 * objects
+ *   in one CONN_TRACK_OFFLOAD bulk allocation.
+ *
+ * @return
+ *   The DevX object created, NULL otherwise and rte_errno is set.
+ */
+struct mlx5_devx_obj *
+mlx5_devx_cmd_create_conn_track_offload_obj(void *ctx, uint32_t pd,
+					    uint32_t log_obj_size)
+{
+	uint32_t in[MLX5_ST_SZ_DW(create_conn_track_aso_in)] = {0};
+	uint32_t out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
+	struct mlx5_devx_obj *ct_aso_obj;
+	void *ptr;
+
+	ct_aso_obj = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*ct_aso_obj),
+				 0, SOCKET_ID_ANY);
+	if (!ct_aso_obj) {
+		DRV_LOG(ERR, "Failed to allocate CONN_TRACK_OFFLOAD object.");
+		rte_errno = ENOMEM;
+		return NULL;
+	}
+	ptr = MLX5_ADDR_OF(create_conn_track_aso_in, in, hdr);
+	MLX5_SET(general_obj_in_cmd_hdr, ptr, opcode,
+		 MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
+	MLX5_SET(general_obj_in_cmd_hdr, ptr, obj_type,
+		 MLX5_GENERAL_OBJ_TYPE_CONN_TRACK_OFFLOAD);
+	MLX5_SET(general_obj_in_cmd_hdr, ptr, log_obj_range, log_obj_size);
+	ptr = MLX5_ADDR_OF(create_conn_track_aso_in, in, conn_track_offload);
+	MLX5_SET(conn_track_offload, ptr, conn_track_aso_access_pd, pd);
+	ct_aso_obj->obj = mlx5_glue->devx_obj_create(ctx, in, sizeof(in),
+						     out, sizeof(out));
+	if (!ct_aso_obj->obj) {
+		rte_errno = errno;
+		DRV_LOG(ERR, "Failed to create CONN_TRACK_OFFLOAD obj by using DevX.");
+		mlx5_free(ct_aso_obj);
+		return NULL;
+	}
+	ct_aso_obj->id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
+	return ct_aso_obj;
+}
+
 /**
  * Create general object of type GENEVE TLV option using DevX API.
  *
diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h b/drivers/common/mlx5/mlx5_devx_cmds.h
index 80465c3998..f8a17b886b 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -617,6 +617,10 @@ struct mlx5_devx_obj *mlx5_devx_cmd_queue_counter_alloc(void *ctx);
 __rte_internal
 int mlx5_devx_cmd_queue_counter_query(struct mlx5_devx_obj *dcs, int clear,
 				      uint32_t *out_of_buffers);
+__rte_internal
+struct mlx5_devx_obj *mlx5_devx_cmd_create_conn_track_offload_obj(void *ctx,
+					uint32_t pd, uint32_t log_obj_size);
+
 /**
  * Create general object of type FLOW_METER_ASO using DevX API..
  *
diff --git a/drivers/common/mlx5/version.map b/drivers/common/mlx5/version.map
index c630696213..db4f13f1f7 100644
--- a/drivers/common/mlx5/version.map
+++ b/drivers/common/mlx5/version.map
@@ -15,6 +15,7 @@ INTERNAL {
 	mlx5_devx_alloc_uar; # WINDOWS_NO_EXPORT
 
 	mlx5_devx_cmd_alloc_pd;
+	mlx5_devx_cmd_create_conn_track_offload_obj;
 	mlx5_devx_cmd_create_cq;
 	mlx5_devx_cmd_create_credential_obj;
 	mlx5_devx_cmd_create_crypto_login_obj;