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Re: [PATCH] mac80211: minstrel_ht should not override user supplied rts setting

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I agree to Marek here - if I want to disable RTS (for whatever reason), I type

iw phy0 set rts off

I would expect to see no RTS frames coming from my WiFi card at all. If the
rate control algorithm (whether ath9k or minstrel_ht) wants to be clever, it should
still respect this decision. The oven in my kitchen also has a temperature regulator,
but if I turn it off I also don't want my oven to be too clever and burn down the house. ;)

I know, apples and oranges, but I hope this makes this point understandable. I also
had quite a debugging night to find the reason for these "wild rts" frames.

Can't we add something two states, like:
 * "RTS really off" and
 * "RTS usually off, but rc's may still use it" ?

Cheers,
        Simon

On Sun, Jan 29, 2012 at 04:35:13AM +0800, Marek Lindner wrote:
> On Sunday, January 29, 2012 04:26:29 Daniel Halperin wrote:
> > >> Can you explain what the low-level behavior of an RTS/CTS "battle" is?
> > >> 
> > >> Abstractly, the behavior you're describing sounds like a buggy driver
> > >> that doesn't obey overheard RTS or CTS packets.
> > > 
> > > I certainly can explain it but this is for another thread and unrelated
> > > to the points raised before.
> > 
> > Frankly, the correctness of your argument depend on whether there's a
> > bug or not. If the difference is -2% normally and +300% in bad
> > interference conditions, you're going to lose this debate. If the
> > difference is legitimately -99% normally, you might win.
> 
> I don't quite follow you here. Are you saying it should only be possible to 
> disable rts/cts if I currently have a bug in my rts/cts implementation ?
> 
> Keep in mind that I am not asking to disable/ban rts/cts for everyone. I'd 
> like minstrel_ht to not override my rts/cts setting if I wish to disable it.
> 
> Regards,
> Marek
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