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nfp: add support restart of link auto-negotiation

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Add support restart of link auto-negotiation.
This may be initiated using:

  # ethtool -r <intf>

Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Fei Qin 2022-09-29 10:58:32 +02:00 committed by Jakub Kicinski
parent 8d545385bf
commit 2820a400df
1 changed files with 33 additions and 0 deletions
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33
drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
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@ -228,6 +228,37 @@ nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
}
static int
nfp_net_nway_reset(struct net_device *netdev)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
int err;
port = nfp_port_from_netdev(netdev);
eth_port = nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
if (!netif_running(netdev))
return 0;
err = nfp_eth_set_configured(port->app->cpp, eth_port->index, false);
if (err) {
netdev_info(netdev, "Link down failed: %d\n", err);
return err;
}
err = nfp_eth_set_configured(port->app->cpp, eth_port->index, true);
if (err) {
netdev_info(netdev, "Link up failed: %d\n", err);
return err;
}
netdev_info(netdev, "Link reset succeeded\n");
return 0;
}
static void
nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
@ -1841,6 +1872,7 @@ static const struct ethtool_ops nfp_net_ethtool_ops = {
ETHTOOL_COALESCE_MAX_FRAMES |
ETHTOOL_COALESCE_USE_ADAPTIVE,
.get_drvinfo = nfp_net_get_drvinfo,
.nway_reset = nfp_net_nway_reset,
.get_link = ethtool_op_get_link,
.get_ringparam = nfp_net_get_ringparam,
.set_ringparam = nfp_net_set_ringparam,
@ -1878,6 +1910,7 @@ static const struct ethtool_ops nfp_net_ethtool_ops = {
const struct ethtool_ops nfp_port_ethtool_ops = {
.get_drvinfo = nfp_app_get_drvinfo,
.nway_reset = nfp_net_nway_reset,
.get_link = ethtool_op_get_link,
.get_strings = nfp_port_get_strings,
.get_ethtool_stats = nfp_port_get_stats,