diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_ethtool.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_ethtool.c b/drivers/net/ethernet/google/gve/gve_ethtool.c index d8fa816f4473..1a80d38e66ec 100644 --- a/drivers/net/ethernet/google/gve/gve_ethtool.c +++ b/drivers/net/ethernet/google/gve/gve_ethtool.c @@ -230,6 +230,38 @@ static int gve_user_reset(struct net_device *netdev, u32 *flags) return -EOPNOTSUPP; } +static int gve_get_tunable(struct net_device *netdev, + const struct ethtool_tunable *etuna, void *value) +{ + struct gve_priv *priv = netdev_priv(netdev); + + switch (etuna->id) { + case ETHTOOL_RX_COPYBREAK: + *(u32 *)value = priv->rx_copybreak; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int gve_set_tunable(struct net_device *netdev, + const struct ethtool_tunable *etuna, const void *value) +{ + struct gve_priv *priv = netdev_priv(netdev); + u32 len; + + switch (etuna->id) { + case ETHTOOL_RX_COPYBREAK: + len = *(u32 *)value; + if (len > PAGE_SIZE / 2) + return -EINVAL; + priv->rx_copybreak = len; + return 0; + default: + return -EOPNOTSUPP; + } +} + const struct ethtool_ops gve_ethtool_ops = { .get_drvinfo = gve_get_drvinfo, .get_strings = gve_get_strings, @@ -242,4 +274,6 @@ const struct ethtool_ops gve_ethtool_ops = { .get_link = ethtool_op_get_link, .get_ringparam = gve_get_ringparam, .reset = gve_user_reset, + .get_tunable = gve_get_tunable, + .set_tunable = gve_set_tunable, }; |