Test-Label: intel-Testing
Test-Status: SUCCESS
_Testing PASS_

DPDK git repo: dpdk-next-net-mlx
commit 9e205f440a7d536b4ae6138b48ab624c7533110d
Author: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
Date:   Tue Nov 11 03:40:57 2025 +0000

    net/mlx5: fix spurious CPU wakeups caused by invalid CQE
    
    Previously, the PMD used a common monitor callback to determine
    CQE ownership for power-aware polling. However, when a CQE contained
    an invalid opcode(MLX5_CQE_INVALID), ownership bit was not reliable.
    As a result, the monitor condition could falsely indicate CQE
    availability and cause the CPU to wake up unnecessarily during
    low traffic periods.
    
    This resulted in spurious wakeups in monitor-wait mode and reduced
    the expected power savings, as cores exited the sleep state even
    when no valid CQEs were available.
    
    This patch introduces a dedicated callback that skips invalid CQEs
    and optimizes power efficiency by preventing false wakeups caused
    by hardware-owned or invalid entries.
    
    Fixes: a8f0df6bf98d ("net/mlx5: support power monitoring")
    Cc: akozyrev@nvidia.com
    Cc: stable@dpdk.org
    
    Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
    
    v2:
     - Updated CQE opcode check logic — replaced XOR with comparison
     - Renamed variable match to sw_owned for clarity
     - Updated CQE ownership check order

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 24.04.3 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| 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|
	+-------------+---------------------------+-------+


DPDK STV team