netdev - Re: [PATCH net-next 07/11] tg3: Add support for link flap avoidance

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Date:	Tue, 09 Apr 2013 17:07:27 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	nsujir@...adcom.com
Cc:	netdev@...r.kernel.org, mchan@...adcom.com
Subject: Re: [PATCH net-next 07/11] tg3: Add support for link flap avoidance

From: "Nithin Nayak Sujir" <nsujir@...adcom.com>
Date: Tue, 9 Apr 2013 13:59:08 -0700

> On 04/09/2013 12:15 PM, David Miller wrote:
>> From: "Nithin Nayak Sujir" <nsujir@...adcom.com>
>> Date: Tue, 9 Apr 2013 11:48:07 -0700
>>
>> If we force a PHY reset due to EEE changes, will the ASF traffic
>> disruption warning message be emitted?
> 
> No, the message is not emitted. There are a couple of reasons for
> this.
> 
> 1. The intent of the message is to warn on user initiated operations
> that cause a link flap.
> 
> 2. The link flap due to EEE mismatch and force reset is possible the
> very first time the system is powered on. It's reasonable to expect
> the link to be in flux till the driver is in sync.
> 
> After the 1st time the EEE mismatch can only happen if the user
> modfies it via ethtool. tg3 does not yet support the set_eee ethtool
> handler. When we implement that, we will add the warning there similar
> to the other ethtool op handlers.

Ok, thanks for the explanation.
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