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| author |   Michael Walle <michael@walle.cc> | 2018-08-29 17:24:11 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-08-31 22:56:46 -0700 |
| commit | aa4e689ed1a7b5c1a479a57f05da0a340b1f8d0c (patch) | |
| tree | f576b7907f98f8a9fc18ac0f98016b8707053082 /drivers/net/veth.c | |
| parent | Revert "net: sched: act: add extack for lookup callback" (diff) | |
| download | linux-dev-aa4e689ed1a7b5c1a479a57f05da0a340b1f8d0c.tar.xz linux-dev-aa4e689ed1a7b5c1a479a57f05da0a340b1f8d0c.zip | |
veth: add software timestamping
Provide a software TX timestamp as well as the ethtool query interface
and report the software timestamp capabilities.
Tested with "ethtool -T" and two linuxptp instances each bound to a
tunnel endpoint.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/veth.c')
| -rw-r--r-- | drivers/net/veth.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 8d679c8b7f25..bc8faf13a731 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -24,6 +24,7 @@ #include <linux/filter.h> #include <linux/ptr_ring.h> #include <linux/bpf_trace.h> +#include <linux/net_tstamp.h> #define DRV_NAME "veth" #define DRV_VERSION "1.0" @@ -114,6 +115,18 @@ static void veth_get_ethtool_stats(struct net_device *dev, data[0] = peer ? peer->ifindex : 0; } +static int veth_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; +} + static const struct ethtool_ops veth_ethtool_ops = { .get_drvinfo = veth_get_drvinfo, .get_link = ethtool_op_get_link, @@ -121,6 +134,7 @@ static const struct ethtool_ops veth_ethtool_ops = { .get_sset_count = veth_get_sset_count, .get_ethtool_stats = veth_get_ethtool_stats, .get_link_ksettings = veth_get_link_ksettings, + .get_ts_info = veth_get_ts_info, }; /* general routines */ @@ -201,6 +215,7 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev) skb_record_rx_queue(skb, rxq); } + skb_tx_timestamp(skb); if (likely(veth_forward_skb(rcv, skb, rq, rcv_xdp) == NET_RX_SUCCESS)) { struct pcpu_vstats *stats = this_cpu_ptr(dev->vstats); |