netdev - Re: [RFC PATCH] qos: Limit a filter's priority to a 16 bit value

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Date:	Fri, 01 May 2009 22:35:32 -0400
From:	jamal <hadi@...erus.ca>
To:	David Miller <davem@...emloft.net>
Cc:	robert.w.love@...el.com, netdev@...r.kernel.org,
	jeffrey.t.kirsher@...el.com
Subject: Re: [RFC PATCH] qos: Limit a filter's priority to a 16 bit value

On Fri, 2009-05-01 at 19:10 -0700, Love, Robert W wrote:

> I don't want our script to yank out the
> multiq qdisc just because FCoE traffic has stopped. The FCoE
> script doesn't know if the user has other filters applied for
> that interface/qdisc. The script should just remove its
> filters and not disrupt anything else on the chain.

True - but if you specify the prio on add/del you should be fine
though.
I looked at about 15-20 scripts and i noticed i always specified
the priority; i suspect most people do thats why noone bumped into
this over the years.

On Fri, 2009-05-01 at 19:18 -0700, David Miller wrote:

> So could I just get that one-liner fix patch from somebody?

Robert, would you do the honors of submitting the patch since
you did all the hardwork?

> Thanks :-)
> 
> Meanwhile, on the issue of how this value is stored, perhaps someone
> intended to support "classful" filter priorities, just as we support
> classful qdiscs.  Or perhaps someone had the idea to store the
> protocol in there as well, who knows :-)

I cant remember the reason. Alexey probably would - but i think the
important point is it is consistent everywhere.

cheers,
jamal

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