netdev - Re: [PATCH net-next v3 3/3] net: wangxun: support to use adaptive RX coalescing

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Message-ID: <20250728082359.170c54a4@kernel.org>
Date: Mon, 28 Jul 2025 08:23:59 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jiawen Wu <jiawenwu@...stnetic.com>
Cc: <netdev@...r.kernel.org>, "'Andrew Lunn'" <andrew+netdev@...n.ch>,
 "'David S. Miller'" <davem@...emloft.net>, "'Eric Dumazet'"
 <edumazet@...gle.com>, "'Paolo Abeni'" <pabeni@...hat.com>, "'Simon
 Horman'" <horms@...nel.org>, "'Jacob Keller'" <jacob.e.keller@...el.com>,
 "'Mengyuan Lou'" <mengyuanlou@...-swift.com>
Subject: Re: [PATCH net-next v3 3/3] net: wangxun: support to use adaptive
 RX coalescing

On Mon, 28 Jul 2025 10:15:42 +0800 Jiawen Wu wrote:
> > > +				     ETHTOOL_COALESCE_USE_ADAPTIVE_RX,  
> > 
> > so far so good, but then you also have dim instances for Tx ?!  
> 
> I hope RX and TX can share ITR value, because they share the interrupt.
> Once adaptive RX coalesce is on, use the smallest value got from RX sample and TX sample.
> If adaptive TX flag is also set, how should I properly set it? Cooperate with RX?

You can require that both adaptive-rx and adaptive-tx are set to the
same value.