tree 216f898fac0e7de4b289a93f5f491492254eeb53
parent 1b1b1847c8505df2e1dd8804838526bed22a8bd4
author Michal Kubecek <mkubecek@suse.cz> 1577458583 +0100
committer David S. Miller <davem@davemloft.net> 1577493602 -0800

ethtool: provide link state with LINKSTATE_GET request

Implement LINKSTATE_GET netlink request to get link state information.

At the moment, only link up flag as provided by ETHTOOL_GLINK ioctl command
is returned.

LINKSTATE_GET request can be used with NLM_F_DUMP (without device
identification) to request the information for all devices in current
network namespace providing the data.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>