netlink: add netlink handler for scoalesce (-C)

Implement "ethtool -C <dev> ..." subcommand to set network device
coalescing parameters using ETHTOOL_MSG_COALESCE_SET netlink message. These
are traditionally set using ETHTOOL_SCOALESCE ioctl request.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
3 files changed