On Wed, 10 Aug 2022 09:13:40 +0300 Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> wrote: > On 10/08/2022 08:54, Krzysztof Kozlowski wrote: > > On 09/08/2022 22:21, Bjorn Helgaas wrote: > >> [+cc regressions list] > >> > >> 23d99baf9d72 appeared in v5.19-rc1. > >> > >> On Tue, Aug 09, 2022 at 11:29:43AM -0700, Stephen Hemminger wrote: > >>> This commit broke the driver override script in DPDK. > >>> This is an API/ABI breakage, please revert or fix the commit. > >>> > >>> Report of problem: > >>> http://mails.dpdk.org/archives/dev/2022-August/247794.html > > > > Thanks for the report. I'll take a look. > > > > I could not find in the report (neither here) steps to reproduce it. Can > you provide me some short description (what kernel options are required, > what commands to run)? > > I tried to run: > $ usertools/dpdk-devbind.py --status > $ usertools/dpdk-devbind.py --bind '0000:00:03.0' > Error: No devices specified. > > > Best regards, > Krzysztof To test, you need to be willing to have one network device disappear from kernel. The bug is in the unbind step this is an example of it working with 5.17 kernel. ~/DPDK/main $ ./usertools/dpdk-devbind.py --status Network devices using kernel driver =================================== 0000:01:00.0 'Wi-Fi 6 AX200 2723' if=wlo1 drv=iwlwifi unused= 0000:02:00.0 'RTL8125 2.5GbE Controller 8125' if=enp2s0 drv=r8169 unused= *Active* ~/DPDK/main $ sudo modprobe vfio-pci ~/DPDK/main $ sudo ./usertools/dpdk-devbind.py --bind=vfio-pci enp2s0 Warning: routing table indicates that interface 0000:02:00.0 is active. Not modifying ~/DPDK/main $ ip li set dev enp2s0 down RTNETLINK answers: Operation not permitted ~/DPDK/main $ sudo ip li set dev enp2s0 down ~/DPDK/main $ sudo ./usertools/dpdk-devbind.py --bind=vfio-pci enp2s0 ~/DPDK/main $ ./usertools/dpdk-devbind.py --status Network devices using DPDK-compatible driver ============================================ 0000:02:00.0 'RTL8125 2.5GbE Controller 8125' drv=vfio-pci unused=r8169 Network devices using kernel driver =================================== 0000:01:00.0 'Wi-Fi 6 AX200 2723' if=wlo1 drv=iwlwifi unused=vfio-pci ~/DPDK/main $ sudo ./usertools/dpdk-devbind.py -u 0000:02:00.0 ~/DPDK/main $ ./usertools/dpdk-devbind.py --status Network devices using kernel driver =================================== 0000:01:00.0 'Wi-Fi 6 AX200 2723' if=wlo1 drv=iwlwifi unused=vfio-pci Other Network devices ===================== 0000:02:00.0 'RTL8125 2.5GbE Controller 8125' unused=r8169,vfio-pci
