diff options
Diffstat (limited to 'net/core/ethtool.c')
-rw-r--r-- | net/core/ethtool.c | 59 |
1 files changed, 56 insertions, 3 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 6d6d7d25caaa..beacdd93cd8f 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -17,6 +17,8 @@ #include <linux/errno.h> #include <linux/ethtool.h> #include <linux/netdevice.h> +#include <linux/net_tstamp.h> +#include <linux/phy.h> #include <linux/bitops.h> #include <linux/uaccess.h> #include <linux/vmalloc.h> @@ -36,6 +38,17 @@ u32 ethtool_op_get_link(struct net_device *dev) } EXPORT_SYMBOL(ethtool_op_get_link); +int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) +{ + info->so_timestamping = + SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + info->phc_index = -1; + return 0; +} +EXPORT_SYMBOL(ethtool_op_get_ts_info); + /* Handlers for each ethtool command */ #define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32) @@ -1278,6 +1291,40 @@ out: return ret; } +static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr) +{ + int err = 0; + struct ethtool_ts_info info; + const struct ethtool_ops *ops = dev->ethtool_ops; + struct phy_device *phydev = dev->phydev; + + memset(&info, 0, sizeof(info)); + info.cmd = ETHTOOL_GET_TS_INFO; + + if (phydev && phydev->drv && phydev->drv->ts_info) { + + err = phydev->drv->ts_info(phydev, &info); + + } else if (dev->ethtool_ops && dev->ethtool_ops->get_ts_info) { + + err = ops->get_ts_info(dev, &info); + + } else { + info.so_timestamping = + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + info.phc_index = -1; + } + + if (err) + return err; + + if (copy_to_user(useraddr, &info, sizeof(info))) + err = -EFAULT; + + return err; +} + /* The main entry point in this file. Called from net/core/dev.c */ int dev_ethtool(struct net *net, struct ifreq *ifr) @@ -1295,11 +1342,13 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) return -EFAULT; if (!dev->ethtool_ops) { - /* ETHTOOL_GDRVINFO does not require any driver support. - * It is also unprivileged and does not change anything, - * so we can take a shortcut to it. */ + /* A few commands do not require any driver support, + * are unprivileged, and do not change anything, so we + * can take a shortcut to them. */ if (ethcmd == ETHTOOL_GDRVINFO) return ethtool_get_drvinfo(dev, useraddr); + else if (ethcmd == ETHTOOL_GET_TS_INFO) + return ethtool_get_ts_info(dev, useraddr); else return -EOPNOTSUPP; } @@ -1330,6 +1379,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GRXCLSRULE: case ETHTOOL_GRXCLSRLALL: case ETHTOOL_GFEATURES: + case ETHTOOL_GET_TS_INFO: break; default: if (!capable(CAP_NET_ADMIN)) @@ -1496,6 +1546,9 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GET_DUMP_DATA: rc = ethtool_get_dump_data(dev, useraddr); break; + case ETHTOOL_GET_TS_INFO: + rc = ethtool_get_ts_info(dev, useraddr); + break; default: rc = -EOPNOTSUPP; } |