The unsigned vf->num_mac will be decreased to below zero and cause the VF port not working
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
Bionic |
New
|
Undecided
|
Unassigned | ||
Cosmic |
Won't Fix
|
Undecided
|
Unassigned |
Bug Description
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:/
affects: | ubuntu → linux (Ubuntu) |
information type: | Public → Private |
Changed in linux (Ubuntu): | |
status: | Expired → Confirmed |
tags: | added: cscc |
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