Public bug reported: The unsigned vf->num_mac in Ubuntu18.04.1 LTS i40e driver 2.1.14-k will be decreased to below zero when VF is trying to delete the MAC address which is added by PF and then add a new MAC address. And after this issue happens, VF won't be able to send/receive packets, and excepting for broadcast address, mac_filter_hash is empty in dumped VSI info.
Ubuntu18.04.1 LTS kernel: 4.15.0-38-generic i40e driver: 2.1.14-k i40evf driver: 3.0.1-k Actual results: The unsigned vf->num_mac should decrease to below zero. The VF port doesn't work. Expected results: The unsigned vf->num_mac range is from 0 to 65535; or the vf is not allowed to delete the MAC addr which is added by PF Corresponding Patch is required for resolving this i40e driver issue i40e: Prevent deleting MAC address from VF when set by PF https://patchwork.ozlabs.org/patch/963036/ ** Affects: ubuntu Importance: Undecided Status: New ** Tags: bot-comment i40e -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806845 Title: The unsigned vf->num_mac will be decreased to below zero and cause the VF port not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1806845/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
