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ethtool: Get link mode in use instead of speed and duplex parameters

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Currently, when user space queries the link's parameters, as speed and
duplex, each parameter is passed from the driver to ethtool.

Instead, get the link mode bit in use, and derive each of the parameters
from it in ethtool.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Danielle Ratson
2021-02-02 20:06:07 +02:00
committed by Jakub Kicinski
parent 012ce4dd31
commit c8907043c6
5 changed files with 174 additions and 156 deletions
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18
net/ethtool/ioctl.c
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@ -426,13 +426,29 @@ struct ethtool_link_usettings {
int __ethtool_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
const struct link_mode_info *link_info;
int err;
ASSERT_RTNL();
if (!dev->ethtool_ops->get_link_ksettings)
return -EOPNOTSUPP;
memset(link_ksettings, 0, sizeof(*link_ksettings));
return dev->ethtool_ops->get_link_ksettings(dev, link_ksettings);
link_ksettings->link_mode = -1;
err = dev->ethtool_ops->get_link_ksettings(dev, link_ksettings);
if (err)
return err;
if (link_ksettings->link_mode != -1) {
link_info = &link_mode_params[link_ksettings->link_mode];
link_ksettings->base.speed = link_info->speed;
link_ksettings->lanes = link_info->lanes;
link_ksettings->base.duplex = link_info->duplex;
}
return 0;
}
EXPORT_SYMBOL(__ethtool_get_link_ksettings);