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authorMichael Walle <michael@walle.cc>2018-08-29 18:24:11 +0300
committerDavid S. Miller <davem@davemloft.net>2018-09-01 08:56:46 +0300
commitaa4e689ed1a7b5c1a479a57f05da0a340b1f8d0c (patch)
treef576b7907f98f8a9fc18ac0f98016b8707053082 /drivers/net/veth.c
parentf061b48c1787e6fece2190e27da6878f4f1796d0 (diff)
downloadlinux-aa4e689ed1a7b5c1a479a57f05da0a340b1f8d0c.tar.xz
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.c15
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);