Messages in this thread | | | Date | Thu, 16 Dec 2021 17:20:21 +0200 | From | Leonid Bloch <> | Subject | PROBLEM: iavf seems not to fully bind to all the devices all the time |
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Hi,
I have a VM with 3 Intel VF's attached:
# lspci | grep Ethernet 04:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01) 0b:00.0 Ethernet controller: Intel Corporation Ethernet Virtual Function 700 Series (rev 04) 13:00.0 Ethernet controller: Intel Corporation Ethernet Virtual Function 700 Series (rev 04) 1b:00.0 Ethernet controller: Intel Corporation Ethernet Virtual Function 700 Series (rev 04)
But not on every boot or driver load/unload all the VFs are fully initialized (some do not appear as network interfaces):
# ip l | sed '/^[0-9]\+:/! d' | bc <<<"$(wc -l) - 2" 3 # rmmod iavf # modprobe iavf # ip l | sed '/^[0-9]\+:/! d' | bc <<<"$(wc -l) - 2" 1 # rmmod iavf # modprobe iavf # ip l | sed '/^[0-9]\+:/! d' | bc <<<"$(wc -l) - 2" 3
...etc (the number always varies between 3 - all the interfaces, and 1 - only one interface, never 0).
The PCI devices which do not appear as network interfaces however, still appear as bound to iavf, but somehow not fully:
When all the interfaces appear: # lshw | grep iavf configuration: autonegotiation=off broadcast=yes driver=iavf driverversion=5.10.78.rt56-1 duplex=full firmware=N/A latency=64 link=no multicast=yes configuration: autonegotiation=off broadcast=yes driver=iavf driverversion=5.10.78.rt56-1 duplex=full firmware=N/A latency=64 link=no multicast=yes configuration: autonegotiation=off broadcast=yes driver=iavf driverversion=5.10.78.rt56-1 duplex=full firmware=N/A latency=64 link=no multicast=yes
When only 2/3 appear: # lshw | grep iavf configuration: autonegotiation=off broadcast=yes driver=iavf driverversion=5.10.78.rt56-1 duplex=full firmware=N/A latency=64 link=no multicast=yes configuration: driver=iavf latency=64 configuration: autonegotiation=off broadcast=yes driver=iavf driverversion=5.10.78.rt56-1 duplex=full firmware=N/A latency=64 link=no multicast=yes
There are no apparent errors in dmesg.
The kernels used: 5.15.7, 5.15.3, 5.15.2, 5.10.78, 5.10.56 (the ones I tried so far).
Any suggestions?
Thanks, Leonid.
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