netdev - Re: [PATCH net-next 0/8] bnx2x: Minor link related fixes

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Message-ID: <1283425990.2272.1.camel@achroite.uk.solarflarecom.com>
Date:	Thu, 02 Sep 2010 12:13:10 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	eilong@...adcom.com
Cc:	David Miller <davem@...emloft.net>,
	Yaniv Rosner <yaniv.rosner@...adcom.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 0/8] bnx2x: Minor link related fixes

On Wed, 2010-09-01 at 21:43 +0300, Eilon Greenstein wrote:
> On Wed, 2010-09-01 at 10:45 -0700, David Miller wrote:
> > Can you explain why 10mbit/100mbit links have to use forced link mode
> > and do not use autonegotiation by default?  I could understand for
> > 10mbit but 100mbit too?
> > 
> Our understanding of the requirements is that if the user selects force
> speed of 1G or higher, it is recommended to use autonegotiation with
> only that speed advertized.
[...]

This is correct. AN is absolutely required in order to establish the
clock master for 1000BASE-T and 10GBASE-T.

Ben.

-- 
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.



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