|SUCCESS|dpdk|b618d731ab| intel-Functional

[sys_stv at intel.com]

Test-Label: intel-Functional
Test-Status: SUCCESS
_Functional 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>

Smoke-Testing Summary : 31 Case Done, 31 Successful, 0 Failures      


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|
	+-----------------+---------------------------------------------------+-------+
	| checksum_offload| test_do_not_insert_checksum_on_the_transmit_packet| passed|
	| checksum_offload| test_hardware_checksum_check_ip_rx                | passed|
	| checksum_offload| test_hardware_checksum_check_ip_tx                | passed|
	| checksum_offload| test_hardware_checksum_check_l4_rx                | passed|
	| checksum_offload| test_hardware_checksum_check_l4_tx                | passed|
	| checksum_offload| test_insert_checksum_on_the_transmit_packet       | passed|
	| checksum_offload| test_rx_checksum_valid_flags                      | passed|
	| checksum_offload| test_checksum_offload_with_vlan                   | n/a   |
	| dual_vlan       | test_dual_vlan_priority_rxtx                      | passed|
	| dual_vlan       | test_vlan_filter_config                           | passed|
	| dual_vlan       | test_vlan_filter_table                            | passed|
	| dual_vlan       | test_vlan_insert_config                           | passed|
	| dual_vlan       | test_vlan_random_test                             | passed|
	| dual_vlan       | test_vlan_strip_config                            | passed|
	| dual_vlan       | test_vlan_synthetic_test                          | passed|
	| dual_vlan       | test_vlan_tpid_config                             | passed|
	| dual_vlan       | test_vlan_stripq_config                           | n/a   |
	| jumboframes     | test_jumboframes_bigger_jumbo                     | passed|
	| jumboframes     | test_jumboframes_jumbo_jumbo                      | passed|
	| jumboframes     | test_jumboframes_jumbo_nojumbo                    | passed|
	| jumboframes     | test_jumboframes_normal_jumbo                     | passed|
	| jumboframes     | test_jumboframes_normal_nojumbo                   | passed|
	| rxtx_offload    | test_rxoffload_port_all                           | passed|
	| rxtx_offload    | test_rxoffload_port_cmdline                       | passed|
	| rxtx_offload    | test_txoffload_port                               | passed|
	| rxtx_offload    | test_txoffload_port_all                           | passed|
	| rxtx_offload    | test_txoffload_port_checksum                      | passed|
	| rxtx_offload    | test_txoffload_port_cmdline                       | passed|
	| rxtx_offload    | test_txoffload_port_multi_segs                    | passed|
	| rxtx_offload    | test_txoffload_queue                              | passed|
	| rxtx_offload    | test_rxoffload_queue                              | n/a   |
	+-----------------+---------------------------------------------------+-------+


DPDK STV team