common/mlx5: create GENEVE TLV option object with DevX

TLV object is a special firmware maintained entity used
to support match on GENEVE header extension option.

The TLV object is created with DevX API and accepts
the option class, type and lehgth fields.

The class type and length fields are set using MLX5_SET
and the Devx object is created using mlx5 glue function.

Signed-off-by: Shiri Kuzin <shirik@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 861f75e..d5859c2 100644 (file)
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -2093,3 +2093,58 @@ mlx5_devx_cmd_alloc_pd(void *ctx)
        ppd->id = MLX5_GET(alloc_pd_out, out, pd);
        return ppd;
 }
+
+/**
+ * Create general object of type GENEVE TLV option using DevX API.
+ *
+ * @param[in] ctx
+ *   Context returned from mlx5 open_device() glue function.
+ * @param [in] class
+ *   TLV option variable value of class
+ * @param [in] type
+ *   TLV option variable value of type
+ * @param [in] len
+ *   TLV option variable value of len
+ *
+ * @return
+ *   The DevX object created, NULL otherwise and rte_errno is set.
+ */
+struct mlx5_devx_obj *
+mlx5_devx_cmd_create_geneve_tlv_option(void *ctx,
+               uint16_t class, uint8_t type, uint8_t len)
+{
+       uint32_t in[MLX5_ST_SZ_DW(create_geneve_tlv_option_in)] = {0};
+       uint32_t out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
+       struct mlx5_devx_obj *geneve_tlv_opt_obj = mlx5_malloc(MLX5_MEM_ZERO,
+                                                  sizeof(*geneve_tlv_opt_obj),
+                                                  0, SOCKET_ID_ANY);
+
+       if (!geneve_tlv_opt_obj) {
+               DRV_LOG(ERR, "Failed to allocate geneve tlv option object.");
+               rte_errno = ENOMEM;
+               return NULL;
+       }
+       void *hdr = MLX5_ADDR_OF(create_geneve_tlv_option_in, in, hdr);
+       void *opt = MLX5_ADDR_OF(create_geneve_tlv_option_in, in,
+                       geneve_tlv_opt);
+       MLX5_SET(general_obj_in_cmd_hdr, hdr, opcode,
+                       MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
+       MLX5_SET(general_obj_in_cmd_hdr, hdr, obj_type,
+                       MLX5_OBJ_TYPE_GENEVE_TLV_OPT);
+       MLX5_SET(geneve_tlv_option, opt, option_class,
+                       rte_be_to_cpu_16(class));
+       MLX5_SET(geneve_tlv_option, opt, option_type, type);
+       MLX5_SET(geneve_tlv_option, opt, option_data_length, len);
+       geneve_tlv_opt_obj->obj = mlx5_glue->devx_obj_create(ctx, in,
+                                       sizeof(in), out, sizeof(out));
+       if (!geneve_tlv_opt_obj->obj) {
+               rte_errno = errno;
+               DRV_LOG(ERR, "Failed to create Geneve tlv option "
+                               "Obj using DevX.");
+               mlx5_free(geneve_tlv_opt_obj);
+               return NULL;
+       }
+       geneve_tlv_opt_obj->id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
+       return geneve_tlv_opt_obj;
+}
+

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h b/drivers/common/mlx5/mlx5_devx_cmds.h
index 1e0a48d..bf83a90 100644 (file)
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -485,6 +485,11 @@ __rte_internal
 int mlx5_devx_cmd_register_read(void *ctx, uint16_t reg_id,
                                uint32_t arg, uint32_t *data, uint32_t dw_cnt);
 
+__rte_internal
+struct mlx5_devx_obj *
+mlx5_devx_cmd_create_geneve_tlv_option(void *ctx,
+               uint16_t class, uint8_t type, uint8_t len);
+
 /**
  * Create virtio queue counters object DevX API.
  *

diff --git a/drivers/common/mlx5/rte_common_mlx5_exports.def b/drivers/common/mlx5/rte_common_mlx5_exports.def
index b385d38..fd62b80 100644 (file)
--- a/drivers/common/mlx5/rte_common_mlx5_exports.def
+++ b/drivers/common/mlx5/rte_common_mlx5_exports.def
@@ -34,6 +34,7 @@ EXPORTS
        mlx5_devx_cmd_register_read
        mlx5_devx_get_out_command_status
        mlx5_devx_cmd_create_flow_hit_aso_obj
+       mlx5_devx_cmd_create_geneve_tlv_option
 
        mlx5_devx_cq_create
        mlx5_devx_cq_destroy

diff --git a/drivers/common/mlx5/version.map b/drivers/common/mlx5/version.map
index 00760ab..244b9c7 100644 (file)
--- a/drivers/common/mlx5/version.map
+++ b/drivers/common/mlx5/version.map
@@ -23,6 +23,7 @@ INTERNAL {
        mlx5_devx_cmd_create_virtio_q_counters;
        mlx5_devx_cmd_create_virtq;
         mlx5_devx_cmd_create_flow_hit_aso_obj;
+       mlx5_devx_cmd_create_geneve_tlv_option;
        mlx5_devx_cmd_destroy;
        mlx5_devx_cmd_flow_counter_alloc;
        mlx5_devx_cmd_flow_counter_query;