Re: [PATCH 2/4 v2] PCI: support ARI capability

From: Roland Dreier
Date: Mon Sep 01 2008 - 11:50:39 EST


> > +config PCI_ARI
> > + bool "PCI ARI support"
> > + depends on PCI
> > + default n
> > + help
> > + This enables PCI Alternative Routing-ID Interpretation.
>
> This Kconfig help text is a little weak. Why not include the text
> you've already written here:
>
> Support Alternative Routing-ID Interpretation (ARI), which
> increases the number of functions that can be supported by a PCIe
> endpoint. ARI is required by SR-IOV.

I agree with this improvement to the help text. But a further question
is whether ARI even merits its own user-visible config option. Is it
worth having yet another choice for users? When would someone want ARI
but not SR-IOV?

- R.

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