Messages in this thread Patch in this message | | | From | Michael Walle <> | Subject | [PATCH] veth: add software timestamping | Date | Wed, 29 Aug 2018 17:24:11 +0200 |
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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> --- drivers/net/veth.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
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); -- 2.11.0
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