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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: Daniele Palmas <dnlplm@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -215,7 +215,52 @@ static void rmnet_get_ethtool_stats(struct net_device *dev,
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memcpy(data, st, ARRAY_SIZE(rmnet_gstrings_stats) * sizeof(u64));
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}
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static int rmnet_get_coalesce(struct net_device *dev,
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struct ethtool_coalesce *coal,
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struct kernel_ethtool_coalesce *kernel_coal,
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struct netlink_ext_ack *extack)
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{
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struct rmnet_priv *priv = netdev_priv(dev);
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struct rmnet_port *port;
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port = rmnet_get_port_rtnl(priv->real_dev);
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memset(kernel_coal, 0, sizeof(*kernel_coal));
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kernel_coal->tx_aggr_max_bytes = port->egress_agg_params.bytes;
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kernel_coal->tx_aggr_max_frames = port->egress_agg_params.count;
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kernel_coal->tx_aggr_time_usecs = div_u64(port->egress_agg_params.time_nsec,
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NSEC_PER_USEC);
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return 0;
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}
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static int rmnet_set_coalesce(struct net_device *dev,
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struct ethtool_coalesce *coal,
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struct kernel_ethtool_coalesce *kernel_coal,
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struct netlink_ext_ack *extack)
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{
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struct rmnet_priv *priv = netdev_priv(dev);
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struct rmnet_port *port;
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port = rmnet_get_port_rtnl(priv->real_dev);
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if (kernel_coal->tx_aggr_max_frames < 1 || kernel_coal->tx_aggr_max_frames > 64)
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return -EINVAL;
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if (kernel_coal->tx_aggr_max_bytes > 32768)
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return -EINVAL;
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rmnet_map_update_ul_agg_config(port, kernel_coal->tx_aggr_max_bytes,
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kernel_coal->tx_aggr_max_frames,
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kernel_coal->tx_aggr_time_usecs);
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return 0;
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}
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static const struct ethtool_ops rmnet_ethtool_ops = {
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.supported_coalesce_params = ETHTOOL_COALESCE_TX_AGGR,
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.get_coalesce = rmnet_get_coalesce,
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.set_coalesce = rmnet_set_coalesce,
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.get_ethtool_stats = rmnet_get_ethtool_stats,
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.get_strings = rmnet_get_strings,
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.get_sset_count = rmnet_get_sset_count,
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