netdev - Re: [PATCH RESEND net-next v14 3/5] ethtool: provide customized dim profile management

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Message-ID: <20240620203918.407185c9@kernel.org>
Date: Thu, 20 Jun 2024 20:39:18 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Heng Qi <hengqi@...ux.alibaba.com>
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@...gle.com, donald.hunter@...il.com, Eugenio Pérez <eperezma@...hat.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Dragos Tatulea <dtatulea@...dia.com>, Rahul
 Rameshbabu <rrameshbabu@...dia.com>, Heiner Kallweit
 <hkallweit1@...il.com>, Przemek Kitszel <przemyslaw.kitszel@...el.com>,
 awel Dembicki <paweldembicki@...il.com>
Subject: Re: [PATCH RESEND net-next v14 3/5] ethtool: provide customized dim
 profile management

On Tue, 18 Jun 2024 10:56:42 +0800 Heng Qi wrote:
> +	if (dev->irq_moder && dev->irq_moder->profile_flags & DIM_PROFILE_RX) {
> +		ret = ethnl_update_profile(dev, &dev->irq_moder->rx_profile,
> +					   tb[ETHTOOL_A_COALESCE_RX_PROFILE],
> +					   info->extack);
> +		if (ret < 0)
> +			return ret;
> +	}
> +
> +	if (dev->irq_moder && dev->irq_moder->profile_flags & DIM_PROFILE_TX) {
> +		ret = ethnl_update_profile(dev, &dev->irq_moder->tx_profile,
> +					   tb[ETHTOOL_A_COALESCE_TX_PROFILE],
> +					   info->extack);
> +		if (ret < 0)
> +			return ret;
> +	}

One last thing - you're missing updating the &mod bit.
When any of the settings were change mod should be set
to true so that we send a notification to user space,
that the settings have been modified.