Re: PCI Power management (was: Re: [PATCH 4/13]: PCI Err: e100ethernet driver recovery

From: Benjamin Herrenschmidt
Date: Thu Jun 30 2005 - 18:42:02 EST


On Thu, 2005-06-30 at 15:39 -0500, Linas Vepstas wrote:

> Thus, the right thing to do might be to split up the
> struct pci_dev->suspend() and pci_dev->resume() calls into
>
> suspend()
> poweroff()
> poweron()
> resume()

No. There are very good reasons not to do that split at the pci_dev
level.

> and then have the generic pci error recovery routines call
> suspend/resume only, skipping the poweroff-on calls. Does that
> sound good?
>
> I'm not sure I can pull this off without having someone from
> the power-management world throw a brick at me.

Just keep the error recovery callbacks for now, and we might be able to
provide a generic "helper" doing the watchdog thing (yes, there is a
watchdog in the net core)

Ben.


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