netdev - Re: [RFC] net: usbnet: prevent buggy devices from killing us

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Date:	Thu, 24 Jan 2013 11:52:22 +0100
From:	Bjørn Mork <bjorn@...k.no>
To:	Oliver Neukum <oneukum@...e.de>
Cc:	linux-usb@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [RFC] net: usbnet: prevent buggy devices from killing us

Oliver Neukum <oneukum@...e.de> writes:

> On Thursday 24 January 2013 11:25:52 Bjørn Mork wrote:
>> The MBIM firmware for the Sierra Wireless MC7710 is a nice source
>> of "interesting" device issues.  One of the uglier ones is that
>> it under certain conditions will start flooding us with frames
>> having length 0 as fast as it can.  And that is pretty fast...
>
> If you can tell that those frames are bogus, why not count them
> as opposed to generic qlen? Say, if you see 20 among the last 30
> are of this type, throttle.

Sounds like a good idea, but where do I add/get that statistics?


Bjørn
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