Function mlx4_set_flags

dpdk/drivers/net/mlx4/mlx4_ethdev.c:249–260

* Set device flags. * * @param priv * Pointer to private structure. * @param keep * Bitmask for flags that must remain untouched. * @param flags * Bitmask for flags to modify. * * @return * 0 on success, negative errno value otherwise and rte_errno is set. */

 *   0 on success, negative errno value otherwise and rte_errno is set.
 */
static int
mlx4_set_flags(struct mlx4_priv *priv, unsigned int keep, unsigned int flags)
{
	struct ifreq request;
	int ret = mlx4_ifreq(priv, SIOCGIFFLAGS, &request);

	if (ret)
		return ret;
	request.ifr_flags &= keep;
	request.ifr_flags |= flags & ~keep;
	return mlx4_ifreq(priv, SIOCSIFFLAGS, &request);
}

/**
 * Change the link state (UP / DOWN).