netdev - Re: [?bug] Can't get switchdev mode work on ConnectX-4 Card

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Message-ID: <131a4587-40d1-4cee-8f5f-52d9f6920034@mails.ucas.ac.cn>
Date: Tue, 22 Apr 2025 16:45:46 +0800
From: Qiyu Yan <yanqiyu17@...ls.ucas.ac.cn>
To: Mark Bloch <mbloch@...dia.com>, Saeed Mahameed <saeedm@...dia.com>,
 Tariq Toukan <tariqt@...dia.com>
Cc: netdev@...r.kernel.org, Ivan Vecera <ivecera@...hat.com>,
 Jiri Pirko <jiri@...nulli.us>
Subject: Re: [?bug] Can't get switchdev mode work on ConnectX-4 Card

在 2025/4/22 16:14, Mark Bloch 写道:
> so you want to do QinQ (not sure cx4-lx supports qinq)
> or just different vlans based on the traffic?
> I don't think cx4-lx supports vlan push offloads.
Just want to grant access to different vlans through a single VF, the 
command with ip
  $ ip link set <interface> vf X vlan Y
filters and tags a single vlan. I am wondering if there is a suggested 
way to "pass-though" multiple vlans to a VM that I can create vlan 
interface in.

Maybe this patch is for this: 
https://patchwork.ozlabs.org/project/netdev/cover/20170827110618.20599-1-saeedm@mellanox.com/ 
but it is not merged yet...

Or I have to put the VF in promiscuous mode/pass-though multiple VFs?

Qiyu