netdev - Re: [net-next 14/15] net/mlx5: SRIOV, Add 802.1ad VST support

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Date:   Fri, 9 Dec 2022 08:34:14 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Saeed Mahameed <saeed@...nel.org>
Cc:     Saeed Mahameed <saeedm@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>,
        Moshe Shemesh <moshe@...dia.com>,
        Mark Bloch <mbloch@...dia.com>
Subject: Re: [net-next 14/15] net/mlx5: SRIOV, Add 802.1ad VST support

On Thu, 8 Dec 2022 21:05:23 -0800 Saeed Mahameed wrote:
> >I see, but that's the fix? Uniformly drop?
> >Start stacking with just .1q?
> >Auto-select the ethtype for .1ad if there's already a tag?  
> 
> push the vst .1q tag. keep original tags intact.
> per policy we won't have .1ad support :( .. 

Yup, stacking another .1q sounds okay to me.
Not exactly standard-compliant but I bet there's already a device out
there which does exactly this so meh..