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| author |   Richard Cochran <richardcochran@gmail.com> | 2012-04-03 22:59:22 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-04-04 05:28:46 -0400 |
| commit | 02eacbd0c405d378d2357e8e0fac5de981bd40f8 (patch) | |
| tree | c6213bbd5f83b8dc4a5dd06f35792beb91116bd7 /net | |
| parent | ixp4xx_eth: Support the get_ts_info ethtool method. (diff) | |
| download | linux-dev-02eacbd0c405d378d2357e8e0fac5de981bd40f8.tar.xz linux-dev-02eacbd0c405d378d2357e8e0fac5de981bd40f8.zip | |
ethtool: Add a common function for drivers with transmit time stamping.
Currently, most drivers do not support transmit SO_TIMESTAMPING. For those
that do support it, there is one appropriate response to the get_ts_info
query. This patch adds a common function providing this response.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/ethtool.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c index a723b1321691..beacdd93cd8f 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -38,6 +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) |