Commit 2820a400 authored by Fei Qin's avatar Fei Qin Committed by Jakub Kicinski
Browse files

nfp: add support restart of link auto-negotiation 



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

  # ethtool -r <intf>

Signed-off-by: default avatarFei Qin <fei.qin@corigine.com>
Signed-off-by: default avatarSimon Horman <simon.horman@corigine.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 8d545385

drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c

+33 −0
Original line number Diff line number Diff line
@@ -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,