netdev - Re: [PATCH net v2] net: spacemit: k1-emac: program frame size registers for jumbo frames

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Message-ID: <dc31ca81-1854-41ba-a448-718ba1f781da@iscas.ac.cn>
Date: Wed, 28 Jan 2026 11:08:11 +0800
From: Vivian Wang <wangruikang@...as.ac.cn>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Tomas Hlavacek <tmshlvck@...il.com>, netdev@...r.kernel.org,
 linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev,
 linux-kernel@...r.kernel.org, stable@...r.kernel.org,
 "David S . Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
 Andrew Lunn <andrew+netdev@...n.ch>, Yixun Lan <dlan@...nel.org>
Subject: Re: [PATCH net v2] net: spacemit: k1-emac: program frame size
 registers for jumbo frames

On 1/28/26 09:24, Jakub Kicinski wrote:
> On Tue, 27 Jan 2026 12:58:21 +0800 Vivian Wang wrote:
>> Oh and... maybe these should be priv->ndev->mtu + ETH_HLEN + ETH_FCS_LEN?
> + 2 * VLAN_HLEN perhaps?

... yeah looks like I've simply messed up the whole MTU and max frame
size configuration thing.

* Tomas: Do you still want to deal with all this and figure out all the
MTU stuff that needs to be fixed? I can give it a go but I don't want to
steal your credit.

Regards,
Vivian "dramforever" Wang