linux-kernel - RE: [PATCH V5 net-next 1/2] net: fec: add XDP

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Message-ID: <AM5PR04MB313962DCC05E4D588C37A6BF8811A@AM5PR04MB3139.eurprd04.prod.outlook.com>
Date:   Sat, 12 Aug 2023 00:06:45 +0000
From:   Wei Fang <wei.fang@....com>
To:     Simon Horman <horms@...nel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        Shenwei Wang <shenwei.wang@....com>,
        Clark Wang <xiaoning.wang@....com>,
        "ast@...nel.org" <ast@...nel.org>,
        "daniel@...earbox.net" <daniel@...earbox.net>,
        "hawk@...nel.org" <hawk@...nel.org>,
        "john.fastabend@...il.com" <john.fastabend@...il.com>,
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        "aleksander.lobakin@...el.com" <aleksander.lobakin@...el.com>,
        "jbrouer@...hat.com" <jbrouer@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>
Subject: RE: [PATCH V5 net-next 1/2] net: fec: add XDP_TX feature support

> On Thu, Aug 10, 2023 at 02:45:13PM +0800, Wei Fang wrote:
> > The XDP_TX feature is not supported before, and all the frames which
> > are deemed to do XDP_TX action actually do the XDP_DROP action. So
> > this patch adds the XDP_TX support to FEC driver.
> >
> > I tested the performance of XDP_TX in XDP_DRV mode and XDP_SKB mode
> > respectively on i.MX8MP-EVK platform, and as suggested by Jesper, I
> > also tested the performance of XDP_REDIRECT on the same platform. And
> > the test steps and results are as follows.
> >
> > XDP_TX test:
> > Step 1: One board is used as generator and connects to switch,and the
> > FEC port of DUT also connects to the switch. Both boards with flow
> > control off. Then the generator runs the
> > pktgen_sample03_burst_single_flow.sh script to generate and send burst
> > traffic to DUT. Note that the size of packet was set to 64 bytes and
> > the procotol of packet was UDP in my test scenario. In addtion, the
> > SMAC of the packet need to be different from the MAC
> 
> nit: addtion -> addition
> 
>      checkpatch.pl --codespell is your friend here.
> 
Thanks for reminding.