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Date:      Wed, 30 Nov 2011 10:00:00 -0800
From:      YongHyeon PYUN <pyunyh@gmail.com>
To:        Florian Wilkemeyer <fw@f-ws.de>
Cc:        freebsd-current@freebsd.org, davidch@freebsd.org
Subject:   Re: if_bce tx / rx tick limits
Message-ID:  <20111130180000.GA9323@michelle.cdnetworks.com>
In-Reply-To: <4ED63C2D.8020209@f-ws.de>
References:  <4ED63C2D.8020209@f-ws.de>

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On Wed, Nov 30, 2011 at 03:22:37PM +0100, Florian Wilkemeyer wrote:
> Hi,
> 
> i wonder about the bce driver's  tx / rx tick limits
> (ticks and ticks_int are limited to 100; otherwise default value (80) 
> gets used)
> 
> (if_bce.c line 921 / 933 .. )
> 

I think this highly depends on firmware of controller.
David may be able to answer(CCed).

> On DragonFly BSD the values can be set much higher (such as 1000 ..)
> which would be great in a high-traffic setup.
> (On linux there's no limit too as far as i remember)
> 

No, the value should be represented with 10bits so having no limit
looks like a bug in Linux.

> 
> 
> Is there any reason why its limited down to 100?
> 
> 
> Thanks
> Florian
> 
> 
> P.S.
> I'm sorry if this was the wrong mailing list for it; i don't know whats 
> the right list for this (probably net or driver ?)



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