netdev - Re: [PATCH net-next v3] net: txgbe: change LAN reset mode

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Message-ID: <520aeaeae454ed7e044e147be4b4edd9495d480b.camel@redhat.com>
Date: Thu, 13 Jul 2023 14:49:08 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: Jiawen Wu <jiawenwu@...stnetic.com>, netdev@...r.kernel.org
Cc: mengyuanlou@...-swift.com
Subject: Re: [PATCH net-next v3] net: txgbe: change LAN reset mode

Hi,

On Tue, 2023-07-11 at 14:26 +0800, Jiawen Wu wrote:
> The old way to do LAN reset is sending reset command to firmware. Once
> firmware performs reset, it reconfigures what it needs.
> 
> In the new firmware versions, veto bit is introduced for NCSI/LLDP to
> block PHY domain in LAN reset. At this point, writing register of LAN
> reset directly makes the same effect as the old way. And it does not
> reset MNG domain, so that veto bit does not change.
> 
> And this change is compatible with old firmware versions, since veto
> bit was never used.

As the current commit message wording still raises questions, could you
please explicitly the level of compatibility of both the old and new
firmware pre/after this change?

And please drop the fixes tag, thanks!

Paolo