|FAILURE|dpdk-next-net-intel|877fdf1d42| Intel-Testing

|FAILURE|dpdk-next-net-intel|877fdf1d42| Intel-Testing

[sys_stv]

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

DPDK git repo: dpdk-next-net-intel
commit 877fdf1d42c1e6bdd81046f7f5867f528f7effaa
Author: Song Yoong Siang <yoong.siang.song@intel.com>
Date:   Thu Dec 4 09:30:08 2025 +0800

    net/e1000: fix allocation of context desc for launch time
    
    When the timestamp dynamic flag is set in the mbuf offload flags, force
    allocation of a new context descriptor. The launch time feature requires
    a dedicated context descriptor to specify the desired launch time for
    packet.
    
    Testing was performed on two Intel ADL-S platforms with i226 NICs
    connected back-to-back. A DPDK sample application is created to send two
    bursts of packets with 100,000 nanosecond burst interval. Each burst is
    having 5 UDP packets and only the first packet in the burst using launch
    time feature. 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 of second burst are transmitted immediately
    as the driver din't create context descriptor for the launch time, 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
      00:00:00.000008381 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
      00:00:00.000008387 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
      00:00:00.000008381 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008387 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
    
    With this patch, packets of second burst are properly held until the
    intended 100,000 nanosecond intervals, demonstrating correct launch time
    behavior. As shown in tcpdump log below, the delta of first packet
    between first and second bursts is 8387 + 8384 + 8384 + 8384 + 66461 =
    100,000 nanosecond.
    
      00:00:00.000000000 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008387 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
      00:00:00.000066461 IP 192.168.1.100.2 > 224.1.1.1.5: UDP, length 982
      00:00:00.000008387 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
    
    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 : 6.8.0-71-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|
	+-------------+---------------------------+-------+


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|
	+-------------+---------------------------+-------+


DPDK STV team