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

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Message-ID: <2321910.EQLkSoxl50@linux-5eaq.site>
Date:	Thu, 24 Jan 2013 12:03:49 +0100
From:	Oliver Neukum <oneukum@...e.de>
To:	Bjørn Mork <bjorn@...k.no>
Cc:	linux-usb@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [RFC] net: usbnet: prevent buggy devices from killing us

On Thursday 24 January 2013 11:52:22 Bjørn Mork wrote:
> 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?

rx_complete

It need not be very accurate.

	Regards
		Oliver

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