linux-kernel - Re: [PATCH v3 net 1/3] net: enetc: remove xdp_drops statistic from enetc_xdp

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Message-ID: <20241009112349.ctk4gog4lhrcmxxs@skbuf>
Date: Wed, 9 Oct 2024 14:23:49 +0300
From: Vladimir Oltean <vladimir.oltean@....com>
To: Wei Fang <wei.fang@....com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, claudiu.manoil@....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,
	rkannoth@...vell.com, maciej.fijalkowski@...el.com,
	sbhatta@...vell.com
Subject: Re: [PATCH v3 net 1/3] net: enetc: remove xdp_drops statistic from
 enetc_xdp_drop()

On Wed, Oct 09, 2024 at 05:03:25PM +0800, Wei Fang 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.
> 
> Fixes: 7ed2bc80074e ("net: enetc: add support for XDP_TX")
> Cc: stable@...r.kernel.org
> Signed-off-by: Wei Fang <wei.fang@....com>
> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
> ---

Reviewed-by: Vladimir Oltean <vladimir.oltean@....com>