Commit efb3dd88 authored by hayeswang's avatar hayeswang Committed by David S. Miller
Browse files

r8152: support setting rx coalesce 



Support setting the rx coalesce. Then someone could change the rx
agg timeout value through ethtool.

Signed-off-by: default avatarHayes Wang <hayeswang@realtek.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 396e2e23

drivers/net/usb/r8152.c

+57 −0
Original line number Diff line number Diff line
@@ -3713,6 +3713,61 @@ static int rtl8152_nway_reset(struct net_device *dev) 
	return ret;

}



static int rtl8152_get_coalesce(struct net_device *netdev,

				struct ethtool_coalesce *coalesce)

{

	struct r8152 *tp = netdev_priv(netdev);



	switch (tp->version) {

	case RTL_VER_01:

	case RTL_VER_02:

		return -EOPNOTSUPP;

	default:

		break;

	}



	coalesce->rx_coalesce_usecs = tp->coalesce;



	return 0;

}



static int rtl8152_set_coalesce(struct net_device *netdev,

				struct ethtool_coalesce *coalesce)

{

	struct r8152 *tp = netdev_priv(netdev);

	int ret;



	switch (tp->version) {

	case RTL_VER_01:

	case RTL_VER_02:

		return -EOPNOTSUPP;

	default:

		break;

	}



	if (coalesce->rx_coalesce_usecs > COALESCE_SLOW)

		return -EINVAL;



	ret = usb_autopm_get_interface(tp->intf);

	if (ret < 0)

		return ret;



	mutex_lock(&tp->control);



	if (tp->coalesce != coalesce->rx_coalesce_usecs) {

		tp->coalesce = coalesce->rx_coalesce_usecs;



		if (netif_running(tp->netdev) && netif_carrier_ok(netdev))

			r8153_set_rx_early_timeout(tp);

	}



	mutex_unlock(&tp->control);



	usb_autopm_put_interface(tp->intf);



	return ret;

}



static struct ethtool_ops ops = {

	.get_drvinfo = rtl8152_get_drvinfo,

	.get_settings = rtl8152_get_settings,
@@ -3726,6 +3781,8 @@ static struct ethtool_ops ops = { 
	.get_strings = rtl8152_get_strings,

	.get_sset_count = rtl8152_get_sset_count,

	.get_ethtool_stats = rtl8152_get_ethtool_stats,

	.get_coalesce = rtl8152_get_coalesce,

	.set_coalesce = rtl8152_set_coalesce,

	.get_eee = rtl_ethtool_get_eee,

	.set_eee = rtl_ethtool_set_eee,

};