|SUCCESS|dpdk|bec00deaa8| Intel-Testing
sys_stv at intel.com
sys_stv at intel.com
Tue Jun 9 13:18:19 CEST 2026
Test-Label: intel-Testing
Test-Status: SUCCESS
_Testing PASS_
DPDK git repo: dpdk
commit bec00deaa8fb217173d2af4bed149147dab85973
Author: Rajesh Kumar <rajesh3.kumar at intel.com>
Date: Sun May 10 04:55:49 2026 +0530
examples/ptp_tap_relay_sw: add PTP transparent clock relay
Add a new example application demonstrating a software PTP Transparent
Clock relay between a DPDK-bound physical NIC and a Linux kernel TAP
virtual interface.
The relay uses software timestamps (CLOCK_MONOTONIC) to measure residence
time and accumulates it into the PTP correctionField per IEEE 1588-2019
§10.2, enabling synchronized time distribution via standard linuxptp
(ptp4l) on both sides.
Features:
- Handles L2, VLAN/QinQ, and UDP/IPv4/IPv6 PTP encapsulations
- Supports PTP v2 event messages (Sync, Delay_Req, PDelay_Req,
PDelay_Resp)
- Two-pass burst processing: classify before TX, timestamp before
relay
- Unmodified Linux kernel and stock DPDK (no kernel patches required)
- Bidirectional relay: PHY ↔ TAP
Includes:
- ptp_tap_relay_sw.c: Main relay logic with burst processing
- ptp_parse.h: Local DPI parser for PTP classification
(not a library API)
- Sample app guide with topology, command-line options, and
example output
Uses lib/net/rte_ptp.h inline helpers for correctionField manipulation
and header parsing.
Signed-off-by: Rajesh Kumar <rajesh3.kumar at intel.com>
Testing Summary : 18 Case Done, 18 Successful, 0 Failures
TestPlan:
pf_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/pf_smoke_test_plan.rst
vf_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/vf_smoke_test_plan.rst
virtio_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/virtio_smoke_test_plan.rst
TestSuite:
pf_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_pf_smoke.py
vf_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_vf_smoke.py
virtio_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_virtio_smoke.py
OS : Ubuntu 24.04.4 LTS
Kernel : 6.8.0-87-generic
GCC : 13.3.0-6ubuntu2~24.04.1
NIC : Ethernet Controller E810-C for SFP
Target : x86_64-native-linuxapp-gcc
Test result details:
+-------------+---------------------------+-------+
| suite | case | status|
+-------------+---------------------------+-------+
| asan_smoke | test_rxtx_with_ASan_enable| passed|
| pf_smoke | test_pf_jumbo_frames | passed|
| pf_smoke | test_pf_rss | passed|
| pf_smoke | test_pf_tx_rx_queue | passed|
| vf_smoke | test_vf_jumbo_frames | passed|
| vf_smoke | test_vf_rss | passed|
| vf_smoke | test_vf_tx_rx_queue | passed|
| virtio_smoke| test_virtio_loopback | passed|
| virtio_smoke| test_virtio_pvp | passed|
+-------------+---------------------------+-------+
OS : Ubuntu 24.04.4 LTS
Kernel : 6.8.0-71-generic
GCC : 13.3.0-6ubuntu2~24.04.1
NIC : Ethernet Controller XL710 for 40GbE QSFP+
Target : x86_64-native-linuxapp-gcc
Test result details:
+-------------+---------------------------+-------+
| suite | case | status|
+-------------+---------------------------+-------+
| asan_smoke | test_rxtx_with_ASan_enable| passed|
| pf_smoke | test_pf_jumbo_frames | passed|
| pf_smoke | test_pf_rss | passed|
| pf_smoke | test_pf_tx_rx_queue | passed|
| vf_smoke | test_vf_rss | passed|
| vf_smoke | test_vf_tx_rx_queue | passed|
| vf_smoke | test_vf_jumbo_frames | n/a |
| virtio_smoke| test_virtio_loopback | passed|
| virtio_smoke| test_virtio_pvp | passed|
+-------------+---------------------------+-------+
DPDK STV team
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