Commit db8a563a authored by Daniele Palmas's avatar Daniele Palmas Committed by David S. Miller
Browse files

net: qualcomm: rmnet: add ethtool support for configuring tx aggregation 



Add support for ETHTOOL_COALESCE_TX_AGGR for configuring the tx
aggregation settings.

Signed-off-by: default avatarDaniele Palmas <dnlplm@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 64b5d1f8

drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c

+45 −0
Original line number Original line Diff line number Diff line
@@ -215,7 +215,52 @@ static void rmnet_get_ethtool_stats(struct net_device *dev, 
	memcpy(data, st, ARRAY_SIZE(rmnet_gstrings_stats) * sizeof(u64));

	memcpy(data, st, ARRAY_SIZE(rmnet_gstrings_stats) * sizeof(u64));

}

}





static int rmnet_get_coalesce(struct net_device *dev,

			      struct ethtool_coalesce *coal,

			      struct kernel_ethtool_coalesce *kernel_coal,

			      struct netlink_ext_ack *extack)

{

	struct rmnet_priv *priv = netdev_priv(dev);

	struct rmnet_port *port;



	port = rmnet_get_port_rtnl(priv->real_dev);



	memset(kernel_coal, 0, sizeof(*kernel_coal));

	kernel_coal->tx_aggr_max_bytes = port->egress_agg_params.bytes;

	kernel_coal->tx_aggr_max_frames = port->egress_agg_params.count;

	kernel_coal->tx_aggr_time_usecs = div_u64(port->egress_agg_params.time_nsec,

						  NSEC_PER_USEC);



	return 0;

}



static int rmnet_set_coalesce(struct net_device *dev,

			      struct ethtool_coalesce *coal,

			      struct kernel_ethtool_coalesce *kernel_coal,

			      struct netlink_ext_ack *extack)

{

	struct rmnet_priv *priv = netdev_priv(dev);

	struct rmnet_port *port;



	port = rmnet_get_port_rtnl(priv->real_dev);



	if (kernel_coal->tx_aggr_max_frames < 1 || kernel_coal->tx_aggr_max_frames > 64)

		return -EINVAL;



	if (kernel_coal->tx_aggr_max_bytes > 32768)

		return -EINVAL;



	rmnet_map_update_ul_agg_config(port, kernel_coal->tx_aggr_max_bytes,

				       kernel_coal->tx_aggr_max_frames,

				       kernel_coal->tx_aggr_time_usecs);



	return 0;

}



static const struct ethtool_ops rmnet_ethtool_ops = {

static const struct ethtool_ops rmnet_ethtool_ops = {

	.supported_coalesce_params = ETHTOOL_COALESCE_TX_AGGR,

	.get_coalesce = rmnet_get_coalesce,

	.set_coalesce = rmnet_set_coalesce,

	.get_ethtool_stats = rmnet_get_ethtool_stats,

	.get_ethtool_stats = rmnet_get_ethtool_stats,

	.get_strings = rmnet_get_strings,

	.get_strings = rmnet_get_strings,

	.get_sset_count = rmnet_get_sset_count,

	.get_sset_count = rmnet_get_sset_count,