netdev - RE: [PATCH net 1/3] net: enetc: remove xdp_drops statistic from enetc_xdp

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Message-ID:
 <PAXPR04MB8510259090731BFCABFDD47F886F2@PAXPR04MB8510.eurprd04.prod.outlook.com>
Date: Mon, 23 Sep 2024 05:53:07 +0000
From: Wei Fang <wei.fang@....com>
To: Ratheesh Kannoth <rkannoth@...vell.com>
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>, Claudiu Manoil
	<claudiu.manoil@....com>, Vladimir Oltean <vladimir.oltean@....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>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, "bpf@...r.kernel.org"
	<bpf@...r.kernel.org>, "stable@...r.kernel.org" <stable@...r.kernel.org>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>
Subject: RE: [PATCH net 1/3] net: enetc: remove xdp_drops statistic from
 enetc_xdp_drop()

> -----Original Message-----
> From: Ratheesh Kannoth <rkannoth@...vell.com>
> Sent: 2024年9月23日 13:03
> To: Wei Fang <wei.fang@....com>
> Cc: davem@...emloft.net; edumazet@...gle.com; kuba@...nel.org;
> pabeni@...hat.com; Claudiu Manoil <claudiu.manoil@....com>; Vladimir
> Oltean <vladimir.oltean@....com>; ast@...nel.org; daniel@...earbox.net;
> hawk@...nel.org; john.fastabend@...il.com; linux-kernel@...r.kernel.org;
> netdev@...r.kernel.org; bpf@...r.kernel.org; stable@...r.kernel.org;
> imx@...ts.linux.dev
> Subject: Re: [PATCH net 1/3] net: enetc: remove xdp_drops statistic from
> enetc_xdp_drop()
> 
> On 2024-09-19 at 14:11:02, Wei Fang (wei.fang@....com) wrote:
> > The xdp_drops statistic indicates the number of XDP frames dropped in
> > the Rx direction. However, enetc_xdp_drop() is also used in XDP_TX and
> > XDP_REDIRECT actions. If frame loss occurs in these two actions, the
> > frames loss count should not be included in xdp_drops, because there
> > are already xdp_tx_drops and xdp_redirect_failures to count the frame
> > loss of these two actions, so it's better to remove xdp_drops statistic
> > from enetc_xdp_drop() and increase xdp_drops in XDP_DROP action.
> nit: s/xdp_drops/xdp_rx_drops would be appropriate as you have
> xdp_tx_drops and
> xdp_redirect_failures.

Sorry, I don't quite understand what you mean.