netdev - Re: [NET_NEXT PATCH 1/2] pkt_sched: Add multiqueue scheduler support

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Date:	Thu, 28 Aug 2008 09:07:20 -0700
From:	"Alexander Duyck" <alexander.duyck@...il.com>
To:	"David Miller" <davem@...emloft.net>
Cc:	jeffrey.t.kirsher@...el.com, jeff@...zik.org,
	netdev@...r.kernel.org, alexander.h.duyck@...el.com
Subject: Re: [NET_NEXT PATCH 1/2] pkt_sched: Add multiqueue scheduler support

> It looks mostly fine.
>
> But I wonder how useful this "bands" parameter is.
> It behaves as follows:
>
> 1) "1" is always allowed, essentially non-multiqueue
> 2) ->real_num_tx_queues is always allowed
> 3) 0 means auto detect, which is also ->real_num_tx_queues
>
> Everything else is rejected.
>

Actually you give me too much credit.  I don't think bands even works
as a boolean, or at least it wasn't meant to.  It was supposed to be 0
or the number of queues which either way ends up the number of queues.
 It was a bit of leftover interface from the rr/prio configuration.  I
realized I left that in there when I was driving home last night but
by then it was too late.

I will probably just have it always default the number of bands to
always be real_num_tx_queues and save the user from having to enter
bands in the tc command line.

Thanks,

Alex
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