netdev - Re: [PATCH] ixgbe: Manual AN-37 for troublesome link partners for X550 SFI

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Message-ID: <ac2faac2-a946-4052-9f61-b0c1c644ee59@lunn.ch>
Date: Fri, 6 Sep 2024 23:16:32 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Jeff Daly <jeffd@...icom-usa.com>
Cc: "anthony.l.nguyen@...el.com" <anthony.l.nguyen@...el.com>,
	"przemyslaw.kitszel@...el.com" <przemyslaw.kitszel@...el.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	"kuba@...nel.org" <kuba@...nel.org>,
	"pabeni@...hat.com" <pabeni@...hat.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ixgbe: Manual AN-37 for troublesome link partners for
 X550 SFI

> It turns out that the patch works fine for the specific issue it's trying to address (Juniper switch), 
> but for (seemingly all) other devices it breaks the autonegotiation.

So it sounds like you need to figure out the nitty-gritty details of
what is going on with the Juniper switch. Once you understand that,
you might be able to find a workaround which works for all systems.

    Andrew