[pve-devel] [PATCH v2 pve-common 0/1] disable rx-vlan-filter on iface in vlan-aware-bridge

Alexandre Derumier aderumier at odiso.com
Tue Jun 27 08:53:50 CEST 2023


Some nics like mellanox connect-x  or intel i40e don't work with vlan-aware-bridge
when too many vlans are defined.
Depend of the model, connectx-3 is limited to 64 vlans, connect-x4 to 128vlans

i40e seem to throw errors like
Jan 18 14:44:27 jupiter kernel: [ 145.060365] i40e 0000:3d:00.0: Error I40E_AQ_RC_ENOSPC, forcing overflow promiscuous on PF

rx-vlan-filter is only a protection to drop packets with unknown vlan at nic level.
(not related to vlan offloading, where nic can support any number of vlan)

When vlan-aware is enabled, bridge is already doing the vlan filtering, so it's pretty safe to disable it.
(AFAIK, it was not enabled on proxmox 5, as I didn't have mellanox problem at this time)

This patch serie add rx-vlan-filter to /etc/network/interfaces on phys nic if the nic is port of vlan aware bridge.
(or slave of bond port of vlan-aware-bridge)


(maybe they are other related bug reports)

Changelog v2:
 - merge missing patch

Alexandre Derumier (1):
  network_interfaces: disable rx-vlan-filter for physical interfaces
    ports of a vlan-aware bridge

 src/PVE/INotify.pm                              | 15 +++++++++++++++
 test/etc_network_interfaces/t.parsed_options.pl |  7 +++++++
 2 files changed, 22 insertions(+)


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