Re: PCI Express Hot-plug

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On Fri, Mar 11, 2011 at 03:31:57PM -0600, david.hagood@xxxxxxxxx wrote:
> I too am interested in this, for exactly the same reasons.
> 
> I've asked how to trigger a rescan when a device's resource needs change
> (e.g. an FPGA becoming programmed and gaining new BAR resources), and the
> only response I got... well, it was rather rude, and completely unhelpful.

What was the response?

The real one is, "you have to do it from something outside of the PCI
bus", like with a PCI hotplug controller, or from userspace manually
(like the fakephp driver does.)

> I'd suggest there really should be a FAQ for this in the kernel!

Patches are always gladly welcome.

thanks,

greg k-h
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