netdev - Re: [PATCH net-next 5/5] Consider the number of vlan tags for vlan filters

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Date:   Tue, 12 Apr 2022 13:06:51 +0300
From:   Boris Sukholitko <boris.sukholitko@...adcom.com>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        "Gustavo A . R . Silva" <gustavoars@...nel.org>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Eric Dumazet <edumazet@...gle.com>,
        zhang kai <zhangkaiheb@....com>,
        Yoshiki Komachi <komachi.yoshiki@...il.com>,
        Ilya Lifshits <ilya.lifshits@...adcom.com>
Subject: Re: [PATCH net-next 5/5] Consider the number of vlan tags for vlan
 filters

On Mon, Apr 11, 2022 at 05:34:13PM +0200, Jiri Pirko wrote:
> Mon, Apr 11, 2022 at 03:31:00PM CEST, boris.sukholitko@...adcom.com wrote:
> >Currently the existence of vlan filters is conditional on the vlan
> >protocol being matched in the tc rule. I.e. the following rule:
> >
> >tc filter add dev eth1 ingress flower vlan_prio 5
> >
> >is illegal because we lack protocol 802.1q in the rule.
> >
> >Having the num_of_vlans filter configured removes this restriction. The
> >following rule becomes ok:
> >
> >tc filter add dev eth1 ingress flower num_of_vlans 1 vlan_prio 5
> >
> >because we know that the packet is single tagged.
> 
> From this patch description, I'm unable to tell what the patch is doing.
> Tell the codebase what to do.
> 

I've expanded the description in v2 of the patches.

> Also, in subject line of the patches, it is customary to put prefix
> like: "net/sched: cls_flower:"

Done in v2.

> 
> The the first glance, the patchset looks fine to me.

Thanks,
Boris.

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