diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 8b2ba4245090135b28eb43ae8b077ae506640b9e..90090bb26044ab0cc94df3eb6c2720646712b8bd 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include @@ -4181,6 +4182,34 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) return 0; } +/** + * igb_hwtstamp_ioctl - control hardware time stamping + * @netdev: + * @ifreq: + * @cmd: + * + * Currently cannot enable any kind of hardware time stamping, but + * supports SIOCSHWTSTAMP in general. + **/ +static int igb_hwtstamp_ioctl(struct net_device *netdev, + struct ifreq *ifr, int cmd) +{ + struct hwtstamp_config config; + + if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) + return -EFAULT; + + /* reserved for future extensions */ + if (config.flags) + return -EINVAL; + + if (config.tx_type == HWTSTAMP_TX_OFF && + config.rx_filter == HWTSTAMP_FILTER_NONE) + return 0; + + return -ERANGE; +} + /** * igb_ioctl - * @netdev: @@ -4194,6 +4223,8 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) case SIOCGMIIREG: case SIOCSMIIREG: return igb_mii_ioctl(netdev, ifr, cmd); + case SIOCSHWTSTAMP: + return igb_hwtstamp_ioctl(netdev, ifr, cmd); default: return -EOPNOTSUPP; }