From: Greg KH <greg@kroah.com>
To: Shlomo Pongratz <shlomopongratz@gmail.com>
Cc: linux-pci@vger.kernel.org, linux-hotplug@vger.kernel.org
Subject: Re: Cabled PCIE device hotplug/hot-removal
Date: Thu, 26 Jul 2012 17:09:25 +0000 [thread overview]
Message-ID: <20120726170925.GA24751@kroah.com> (raw)
In-Reply-To: <CAHzK-V0XpkVJHgqWiWpYP1jx5DPX=voE0eymK+5FG-zhrJOwAQ@mail.gmail.com>
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_idôca40ec1721aa7fadd05e2903b0172c36656294"
> 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
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <greg@kroah.com>
To: Shlomo Pongratz <shlomopongratz@gmail.com>
Cc: linux-pci@vger.kernel.org, linux-hotplug@vger.kernel.org
Subject: Re: Cabled PCIE device hotplug/hot-removal
Date: Thu, 26 Jul 2012 10:09:25 -0700 [thread overview]
Message-ID: <20120726170925.GA24751@kroah.com> (raw)
In-Reply-To: <CAHzK-V0XpkVJHgqWiWpYP1jx5DPX=voE0eymK+5FG-zhrJOwAQ@mail.gmail.com>
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
next prev parent reply other threads:[~2012-07-26 17:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-26 17:03 Cabled PCIE device hotplug/hot-removal Shlomo Pongratz
2012-07-26 17:03 ` Shlomo Pongratz
2012-07-26 17:09 ` Greg KH [this message]
2012-07-26 17:09 ` Greg KH
2012-07-29 12:36 ` Shlomo Pongratz
2012-07-29 12:36 ` Shlomo Pongratz
2012-07-29 14:59 ` Greg KH
2012-07-29 14:59 ` Greg KH
2012-07-31 11:02 ` Kaneshige, Kenji
2012-07-31 11:02 ` Kaneshige, Kenji
2012-07-31 14:59 ` Shlomo Pongratz
2012-07-31 14:59 ` Shlomo Pongratz
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