Hi all,
We're facing an issue that we cannot add 64 VLANs or more per VF. When using SR-IOV, pass through a VF to the KVM guest and a lot of VLANs, we could add 63 VLANs using vconfig but we failed to add 64th VLAN. We'd like to use many VLANs on the guest with SR-IOV. We're using Intel's 82599EB chip with ixgbe and ixgbevf driver. Has anyone seen the same issue? Is there any idea to solve this? The below instruction is a reproducing method. Create hundred VLANs on the guest. # for i in `seq 100 199`; do vconfig add eth2 $i; ifconfig 192.168.$i.1/24; done # vconfig add eth2 100 Added VLAN with VID == 100 to IF -:eth2:- # vconfig add eth2 101 Added VLAN with VID == 101 to IF -:eth2:- # vconfig add eth2 102 Added VLAN with VID == 102 to IF -:eth2:- ... # vconfig add eth2 162 Added VLAN with VID == 162 to IF -:eth2:- # vconfig add eth2 163 ERROR: trying to add VLAN #163 to IF -:eth2:- error: Permission denied SIOCSIFADDR: No such device eth2.163: unknown interface: No such device # vconfig add eth2 164 ERROR: trying to add VLAN #164 to IF -:eth2:- error: Permission denied SIOCSIFADDR: No such device eth2.164: unknown interface: No such device # vconfig add eth2 165 ERROR: trying to add VLAN #165 to IF -:eth2:- error: Permission denied SIOCSIFADDR: No such device eth2.165: unknown interface: No such device thanks, Madoka Komatsubara -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
