Function mlx5_common_config_get

dpdk/drivers/common/mlx5/mlx5_common.c:313–357

* Parse common device parameters. * * @param devargs * Device arguments structure. * @param config * Pointer to device configuration structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */

 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
static int
mlx5_common_config_get(struct mlx5_kvargs_ctrl *mkvlist,
		       struct mlx5_common_dev_config *config)
{
	const char **params = (const char *[]){
		RTE_DEVARGS_KEY_CLASS,
		MLX5_DRIVER_KEY,
		MLX5_TX_DB_NC,
		MLX5_SQ_DB_NC,
		MLX5_MR_EXT_MEMSEG_EN,
		MLX5_SYS_MEM_EN,
		MLX5_MR_MEMPOOL_REG_EN,
		MLX5_DEVICE_FD,
		MLX5_PD_HANDLE,
		NULL,
	};
	int ret = 0;

	/* Set defaults. */
	config->mr_ext_memseg_en = 1;
	config->mr_mempool_reg_en = 1;
	config->sys_mem_en = 0;
	config->dbnc = MLX5_ARG_UNSET;
	config->device_fd = MLX5_ARG_UNSET;
	config->pd_handle = MLX5_ARG_UNSET;
	if (mkvlist == NULL)
		return 0;
	/* Process common parameters. */
	ret = mlx5_kvargs_process(mkvlist, params,
				  mlx5_common_args_check_handler, config);
	if (ret) {
		rte_errno = EINVAL;
		return -rte_errno;
	}
	/* Validate user arguments for remote PD and CTX if it is given. */
	ret = mlx5_os_remote_pd_and_ctx_validate(config);
	if (ret)
		return ret;
	DRV_LOG(DEBUG, "mr_ext_memseg_en is %u.", config->mr_ext_memseg_en);
	DRV_LOG(DEBUG, "mr_mempool_reg_en is %u.", config->mr_mempool_reg_en);
	DRV_LOG(DEBUG, "sys_mem_en is %u.", config->sys_mem_en);
	DRV_LOG(DEBUG, "Send Queue doorbell mapping parameter is %d.",
		config->dbnc);
	return ret;
}

static int
devargs_class_handler(__rte_unused const char *key,