linux-kernel - RE: [PATCH net-next,V2] net: mana: Add support for vlan tagging

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Message-ID: <PH7PR21MB31161CAAE393DF3602515B24CA53A@PH7PR21MB3116.namprd21.prod.outlook.com>
Date:   Wed, 7 Jun 2023 20:41:44 +0000
From:   Haiyang Zhang <haiyangz@...rosoft.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Dexuan Cui <decui@...rosoft.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Paul Rosswurm <paulros@...rosoft.com>,
        "olaf@...fle.de" <olaf@...fle.de>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "leon@...nel.org" <leon@...nel.org>,
        Long Li <longli@...rosoft.com>,
        "ssengar@...ux.microsoft.com" <ssengar@...ux.microsoft.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "daniel@...earbox.net" <daniel@...earbox.net>,
        "john.fastabend@...il.com" <john.fastabend@...il.com>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        "ast@...nel.org" <ast@...nel.org>,
        Ajay Sharma <sharmaajay@...rosoft.com>,
        "hawk@...nel.org" <hawk@...nel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "shradhagupta@...ux.microsoft.com" <shradhagupta@...ux.microsoft.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH net-next,V2] net: mana: Add support for vlan tagging



> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Wednesday, June 7, 2023 4:38 PM
> To: Haiyang Zhang <haiyangz@...rosoft.com>
> Cc: linux-hyperv@...r.kernel.org; netdev@...r.kernel.org; Dexuan Cui
> <decui@...rosoft.com>; KY Srinivasan <kys@...rosoft.com>; Paul Rosswurm
> <paulros@...rosoft.com>; olaf@...fle.de; vkuznets@...hat.com;
> davem@...emloft.net; wei.liu@...nel.org; edumazet@...gle.com;
> pabeni@...hat.com; leon@...nel.org; Long Li <longli@...rosoft.com>;
> ssengar@...ux.microsoft.com; linux-rdma@...r.kernel.org;
> daniel@...earbox.net; john.fastabend@...il.com; bpf@...r.kernel.org;
> ast@...nel.org; Ajay Sharma <sharmaajay@...rosoft.com>;
> hawk@...nel.org; tglx@...utronix.de; shradhagupta@...ux.microsoft.com;
> linux-kernel@...r.kernel.org
> Subject: Re: [PATCH net-next,V2] net: mana: Add support for vlan tagging
> 
> On Wed,  7 Jun 2023 13:34:02 -0700 Haiyang Zhang wrote:
> > To support vlan, use MANA_LONG_PKT_FMT if vlan tag is present in TX
> > skb. Then extract the vlan tag from the skb struct, and save it to
> > tx_oob for the NIC to transmit. For vlan tags on the payload, they
> > are accepted by the NIC too.
> >
> > For RX, extract the vlan tag from CQE and put it into skb.
> >
> > Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> > ---
> > V2:
> > Removed the code that extracts inband tag, because our NIC accepts
> > inband tags too.
> 
> Please don't rush multiple versions, if your previous version is buggy
> you have to reply to it saying so and then wait before posting v2.

Will do. Thanks.