netdev - Re: [PATCH net-next v10 2/4] ethtool: provide customized dim profile management

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Date: Tue, 30 Apr 2024 12:43:58 +0800
From: Heng Qi <hengqi@...ux.alibaba.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org,
 virtualization@...ts.linux.dev,
 "David S .   Miller" <davem@...emloft.net>,
 Paolo Abeni <pabeni@...hat.com>,
 Eric   Dumazet <edumazet@...gle.com>,
 Jason Wang <jasowang@...hat.com>,
 "Michael S   . Tsirkin" <mst@...hat.com>,
 Brett Creeley <bcreeley@....com>,
 Ratheesh   Kannoth <rkannoth@...vell.com>,
 Alexander Lobakin <aleksander.lobakin@...el.com>,
 Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
 Tal   Gilboa <talgi@...dia.com>,
 Jonathan Corbet <corbet@....net>,
 linux-doc@...r.kernel.org,
 Maxime Chevallier <maxime.chevallier@...tlin.com>,
 Jiri Pirko <jiri@...nulli.us>,
 Paul   Greenwalt <paul.greenwalt@...el.com>,
 Ahmed Zaki <ahmed.zaki@...el.com>,
 Vladimir Oltean <vladimir.oltean@....com>,
 Kory Maincent <kory.maincent@...tlin.com>,
 Andrew Lunn <andrew@...n.ch>,
 "justinstitt @   google . com" <justinstitt@...gle.com>
Subject: Re: [PATCH net-next v10 2/4] ethtool: provide customized dim profile management

On Mon, 29 Apr 2024 20:13:00 -0700, Jakub Kicinski <kuba@...nel.org> wrote:
> On Tue, 30 Apr 2024 09:59:39 +0800 Heng Qi wrote:
> > + if (moder[ETHTOOL_A_IRQ_MODERATION_USEC]) {
> > + 	if (irq_moder->coal_flags & DIM_COALESCE_USEC)
> > + 		new_profile[i].usec =
> > + 			nla_get_u32(moder[ETHTOOL_A_IRQ_MODERATION_USEC]);
> > + 	else
> > + 		return -EOPNOTSUPP;
> > + }
> 
> Almost, the extack should still be there on error:
> 
> + if (moder[ETHTOOL_A_IRQ_MODERATION_USEC])
> + 	if (irq_moder->coal_flags & DIM_COALESCE_USEC) {
> + 		new_profile[i].usec =
> + 			nla_get_u32(moder[ETHTOOL_A_IRQ_MODERATION_USEC]);
> + 	} else {
> +		NL_SET_BAD_ATTR(extack, moder[ETHTOOL_A_IRQ_MODERATION_USEC]);
> + 		return -EOPNOTSUPP;
> + 	}
> 

Sure, thanks!