netdev - Re: [PATCH net-next v2 1/3] net: txgbe: expend SW-FW mailbox buffer size to identify QSFP module

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5b9b9525-65ea-45c0-93d8-5d502830332b@lunn.ch>
Date: Tue, 14 Oct 2025 14:32:17 +0200
From: Andrew Lunn <andrew@...n.ch>
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>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	Mengyuan Lou <mengyuanlou@...-swift.com>
Subject: Re: [PATCH net-next v2 1/3] net: txgbe: expend SW-FW mailbox buffer
 size to identify QSFP module

On Tue, Oct 14, 2025 at 02:17:24PM +0800, Jiawen Wu wrote:
> Recent firmware updates introduce additional fields in the mailbox message
> to provide more information for identifying 40G and 100G QSFP modules.
> To accommodate these new fields, expand the mailbox buffer size by 4 bytes.
> 
> Without this change, drivers built against the updated firmware cannot
> properly identify modules due to mismatched mailbox message lengths.
> 
> The old firmware version that used the smaller mailbox buffer has never
> been publicly released, so there are no backward-compatibility concerns.
> 
> Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew