Re: Cabled PCIE device hotplug/hot-removal

On Thu, Jul 26, 2012 at 08:03:09PM +0300, Shlomo Pongratz wrote:
> Hi,
> 
> I have a  PCIe device connected with cables to a host (kernel 3.5.0-rc7+).
> What are the handler I need to add to a driver in order to catch cable
> pull-out / push-in?

You shouldn't need anything special, aren't you already getting probe
and disconnect callbacks when the device is discovered and removed?

> The pcisig presentation
> "http://www.pcisig.com/developers/main/training_materials/get_document?doc_id=f4ca40ec1721aa7fadd05e2903b0172c36656294"
> talks about PERST# detection for cabled PCIe hotplug.
> 
> Does the kernel detect it?
> 
> None of the pci_driver or pci_error_handlers callbacks were called
> when using powered down/up the device (electrically).

Do you have the pciehp driver loaded properly when this happens?

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html