|FAILURE|dpdk-next-net-intel|b0cd908f14| Intel-Testing

[sys_stv@intel.com]

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Test-Label: intel-Testing
Test-Status: FAILURE
_Testing issues_

DPDK git repo: dpdk-next-net-intel
commit b0cd908f14fb95045a32a66f1e736aa6fbbc7f75
Author: Song Yoong Siang <yoong.siang.song@intel.com>
Date:   Thu Dec 4 10:09:47 2025 +0800

    net/e1000: fix igc launch time calculation
    
    Improve the launch time calculation logic to handle different scenarios:
     - Set launch time to 0 if txtime has expired.
     - Set launch time to 0 if txtime exceeds the horizon (beyond the end of
       the next Qbv cycle).
     - Mark the first flag in the context descriptor when the packet is the
       first one scheduled in the next Qbv cycle.
     - Create a dummy packet to dirty the current cycle before sending
       packets intended for the next Qbv cycle.
    
    Testing was performed on two Intel ADL-S platforms with i226 NICs
    connected back-to-back. A DPDK sample application is created to send 10
    UDP packets with 20,000 nanosecond intervals and their txtime is set to
    the time of the next Qbv cycle. Meanwhile, the tcpdump command below is
    used on the link partner to capture the delta of Rx hardware timestamp
    of the 10 packets:
    
    tcpdump -ttt -ni enp1s0 --time-stamp-precision=nano -j adapter_unsynced
    
    Without this patch, packets are transmitted immediately as the hardware
    interprets their launch time as expired, resulting in 8,384 nanosecond
    intervals (wire speed for 1024-byte packets at 1Gbps), as shown in
    tcpdump log below:
    
      00:00:00.000000000 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008384 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
    
    With this patch, packets are properly held until the next Qbv cycle and
    transmitted at the intended 20,000 nanosecond intervals, demonstrating
    correct launch time behavior, as shown in tcpdump log below:
    
      00:00:00.000000000  [|llc]
      00:00:00.000862592 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000019993 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000020000 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000020010 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000019997 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000020000 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000020003 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000019990 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000020000 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000020000 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
    
    Fixes: 9630f7c71ecd ("net/igc: enable launch time offloading")
    Cc: stable@dpdk.org
    
    Signed-off-by: David Zage <david.zage@intel.com>
    Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
    Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Testing Summary : 18 Case Done, 17 Successful, 1 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 24.04.3 LTS       
Kernel : 6.8.0-87-generic         
GCC : 13.3.0-6ubuntu2~24.04        
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| FAILED|
	| 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 24.04.3 LTS       
Kernel : 6.8.0-71-generic         
GCC : 13.3.0-6ubuntu2~24.04        
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