netdev - Re: [RFC PATCH v2 0/2] nb8800 suspend/resume support

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Message-ID: <6906dccf-bec9-0fc8-a34a-c39c05ada917@free.fr>
Date:   Wed, 2 Aug 2017 18:07:52 +0200
From:   Mason <slash.tmp@...e.fr>
To:     Mans Rullgard <mans@...sr.com>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH v2 0/2] nb8800 suspend/resume support

On 02/08/2017 17:56, Måns Rullgård wrote:

> Mason writes:
> 
>> From my perspective, the older method does not work on newer chips :-)
> 
> It does work on tango4.

Agreed.

> What does the tango5 do if you flood it with packets faster than the
> kernel can keep up with?  That would make it hit the end of the rx
> chain, which is apparently what makes it miserable with the current dma
> stop code.

The simplest way to test this would be sending tiny packets
as fast as possible, right? So ping -f on a GigE link should
fit the bill?

Regards.