Function mlx5_os_open_device

dpdk/drivers/common/mlx5/linux/mlx5_common_os.c:858–874

* Function API to prepare IB device. * * @param cdev * Pointer to the mlx5 device. * @param classes * Chosen classes come from device arguments. * * @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.
 */
int
mlx5_os_open_device(struct mlx5_common_device *cdev, uint32_t classes)
{

	struct ibv_context *ctx = NULL;

	if (cdev->config.device_fd == MLX5_ARG_UNSET)
		ctx = mlx5_open_device(cdev, classes);
	else
		ctx = mlx5_import_device(cdev);
	if (ctx == NULL)
		return -rte_errno;
	/* Hint libmlx5 to use PMD allocator for data plane resources */
	mlx5_set_context_attr(cdev->dev, ctx);
	cdev->ctx = ctx;
	return 0;
}

int
mlx5_get_device_guid(const struct rte_pci_addr *dev, uint8_t *guid, size_t len)