These are the messages i am seeing dmesg [16588.298660] vfio-pci: probe of 0000:8a:00.2 failed with error -22 [16591.574630] i40e 0000:8a:00.3: i40e_ptp_stop: removed PHC on enp138s0f3 [16593.138613] vfio-pci: probe of 0000:8a:00.3 failed with error -22 [16593.138674] vfio-pci: probe of 0000:8a:00.3 failed with error -22 [16627.551866] vfio-pci: probe of 0000:51:00.0 failed with error -22 [16627.551922] vfio-pci: probe of 0000:51:00.0 failed with error -22 [16716.344530] vfio-pci: probe of 0000:51:00.0 failed with error -22 [16716.344585] vfio-pci: probe of 0000:51:00.0 failed with error -22 [17859.876566] vfio-pci: probe of 0000:51:00.0 failed with error -22 [17859.876622] vfio-pci: probe of 0000:51:00.0 failed with error -22 root@nat-kvm:/home/nat# cat /boot/config-$(uname -r) | grep NOIOMMU CONFIG_VFIO_NOIOMMU=y root@nat-kvm:/home/nat#
Interface type : Other Network devices ===================== 0000:51:00.0 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci 0000:51:00.1 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci 0000:51:00.2 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci 0000:51:00.3 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci 0000:8a:00.0 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci 0000:8a:00.1 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci 0000:8a:00.2 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci 0000:8a:00.3 'Ethernet Controller X710 for 10GbE SFP+ 1572' unused=i40e,vfio-pci On Tue, Feb 21, 2023 at 9:37 PM Bruce Richardson <bruce.richard...@intel.com> wrote: > On Tue, Feb 21, 2023 at 09:30:15PM +0530, Nagendra Prabhu A T wrote: > > HI Bruce, > > Thanks for your reply. > > I have removed the binding of all other ports. So , i can confirm that > > #2 is taken care of. > > I tried using a different driver "uio_pci_generic". I still see the > > same issue for that driver as well. > > The problem seems to be because the write operation is not happening > in > > "bind" file. > > Infact tried doing the following step manually. That also failed > > echo sh -c 0000:51:00.0 > /sys/bus/pci/drivers/uio_pci_generic/bind > > bash: echo: write error: No such device > > The "sh -c" doesn't look right in that command. It should just echo the > device id to the bind file. However, it's generally recommended just to use > the devbind script, as more writes to sysfs may be necessary first, e.g. to > register the device ids first. > > > I have required permission for the file. > > I tried doing with "sudo" > > I dont have selinux running > > So not sure whats blocking me. Infact , even > > "cat /sys/bus/pci/drivers/uio_pci_generic/bind" is failing > > Can you please help. > > To track down issues other than the obvious, I think we need more > information. For example, what NIC card is this? Are there any useful error > messages in dmesg? > > /Bruce >
