netdev - Re: [PATCH net-next v2 3/3] net: stmmac: Set CIC bit only for TX queues with COE

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Message-ID: <20250819182207.5d7b2faa@kernel.org>
Date: Tue, 19 Aug 2025 18:22:07 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Rohan G Thomas via B4 Relay
 <devnull+rohan.g.thomas.altera.com@...nel.org>
Cc: rohan.g.thomas@...era.com, Andrew Lunn <andrew+netdev@...n.ch>, "David
 S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo
 Abeni <pabeni@...hat.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>, Serge Semin
 <fancer.lancer@...il.com>, Romain Gantois <romain.gantois@...tlin.com>,
 Jose Abreu <Jose.Abreu@...opsys.com>, Ong Boon Leong
 <boon.leong.ong@...el.com>, netdev@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Matthew
 Gerlach <matthew.gerlach@...era.com>
Subject: Re: [PATCH net-next v2 3/3] net: stmmac: Set CIC bit only for TX
 queues with COE

On Sat, 16 Aug 2025 00:55:25 +0800 Rohan G Thomas via B4 Relay wrote:
> +	bool csum = !priv->plat->tx_queues_cfg[queue].coe_unsupported;

Hopefully the slight pointer chasing here doesn't impact performance?
XDP itself doesn't support checksum so perhaps we could always pass
false?