netdev - RE: [PATCH] net: ethtool support to configure number of channels

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Date:	Fri, 1 Apr 2011 22:22:16 -0500
From:	Amit Salecha <amit.salecha@...gic.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
CC:	"davem@...emloft.net" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Ameen Rahman <ameen.rahman@...gic.com>,
	Sucheta Chakraborty <sucheta.chakraborty@...gic.com>,
	Anirban Chakraborty <anirban.chakraborty@...gic.com>
Subject: RE: [PATCH] net: ethtool support to configure number of channels

> > >
> > > > This also omits the 'combined' and 'other' types.  Most
> multiqueue
> > > > drivers pair up RX and TX queues so that most channels combine RX
> > and
> > > > TX
> > > > work.
> > >
> > > 'combined' is ok, what is use of 'other' ?
> >
> > Could be link interrupts, SR-IOV coordination, or something else.
> Not
> > something you'd likely be able to change, but it could be useful to
> > know
> > that some interrupts are allocated to them.  Actually, that does mean
> > it
> > might be helpful for the 'get' operation to return a minimum value
> > along
> > with the maximum value.
> >
> Instead of naming as 'other', corresponding channel type should be
> declared.
> Adapter may have multiple 'other' channel. It's better to name them.
> Naming them will be useful, if one want to configure them.
> So I will rather leave this open and let people to declared channel
> type as they required.
>

I will declare 'other' channel type, which will mean channel other than
declared in ethtool_channel_type (not other than RX/TX).

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