|SUCCESS|dpdk|b618d731ab| Intel-Testing

[sys_stv at intel.com]

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

DPDK git repo: dpdk
commit b618d731abebdf8eee53dbc4f09e06a3d00e0ce6
Author: Anatoly Burakov <anatoly.burakov at intel.com>
Date:   Thu Oct 15 16:43:53 2026 +0100

    vfio: fix device lookup with no-IOMMU mode
    
    Currently, when the `enable_unsafe_noiommu_mode` VFIO module parameter is
    set, VFIO selects PA IOVA mode and then only looks for no-IOMMU device
    nodes: `/dev/vfio/noiommu-N` in group mode, and `noiommu-vfioN` in cdev
    mode.
    
    However, the parameter does not make every VFIO device a no-IOMMU
    device. The kernel only creates a no-IOMMU group for a device that has no
    IOMMU group of its own; devices behind a real IOMMU still get a regular
    `/dev/vfio/N` group and `vfioN` cdev. On such systems, devices bound
    to `vfio-pci` are therefore reported as not managed by VFIO and fail
    to probe.
    
    Fix it by trying the regular node name first and falling back to the
    no-IOMMU one, in both group and cdev modes.
    
    Fixes: 6cb38a7f56e0 ("vfio: introduce VFIO mode")
    Fixes: d129414711aa ("vfio: introduce cdev mode")
    
    Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
    Acked-by: David Marchand <david.marchand at redhat.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