From: Gavin Shan <gwshan@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Gavin Shan <gwshan@linux.vnet.ibm.com>, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 4/4] drivers/pci/hotplug: Support surprise hotplug
Date: Wed, 21 Sep 2016 22:20:48 +1000 [thread overview]
Message-ID: <20160921122047.GA9104@gwshan> (raw)
In-Reply-To: <8737ktao99.fsf@concordia.ellerman.id.au>
On Wed, Sep 21, 2016 at 02:08:18PM +1000, Michael Ellerman wrote:
>Gavin Shan <gwshan@linux.vnet.ibm.com> writes:
>
>> This supports PCI surprise hotplug. The design is highlighted as
>> below:
>>
>> * The PCI slot's surprise hotplug capability is exposed through
>> device node property "ibm,slot-surprise-pluggable", meaning
>> PCI surprise hotplug will be disabled if skiboot doesn't support
>> it yet.
>> * The interrupt because of presence or link state change is raised
>> on surprise hotplug event. One event is allocated and queued to
>> the PCI slot for workqueue to pick it up and process in serialized
>> fashion. The code flow for surprise hotplug is same to that for
>> managed hotplug except: the affected PEs are put into frozen state
>> to avoid unexpected EEH error reporting in surprise hot remove path.
>>
>> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
>> ---
>> arch/powerpc/include/asm/pnv-pci.h | 9 ++
>> drivers/pci/hotplug/pnv_php.c | 219 +++++++++++++++++++++++++++++++++++++
>
>Can you please resend this and Cc linux-pci and Bjorn, thanks.
>
Thanks for the tips that I should have followed last time when posting the patches.
This series was resent and Bjorn/linux-pci are copied. Please ignore this copy.
Thanks,
Gavin
>cheers
>
next prev parent reply other threads:[~2016-09-21 12:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-15 2:07 [PATCH 0/4] powerpc/powernv: PCI Surprise Hotplug Support Gavin Shan
2016-09-15 2:07 ` [PATCH 1/4] powerpc/eeh: Allow to freeze PE in eeh_pe_set_option() Gavin Shan
2016-09-15 2:07 ` [PATCH 2/4] powerpc/eeh: Export eeh_pe_state_mark() Gavin Shan
2016-09-15 2:07 ` [PATCH 3/4] powerpc/powernv: Unfreeze PE on allocation Gavin Shan
2016-09-15 2:07 ` [PATCH 4/4] drivers/pci/hotplug: Support surprise hotplug Gavin Shan
2016-09-21 4:08 ` Michael Ellerman
2016-09-21 12:20 ` Gavin Shan [this message]
-- strict thread matches above, loose matches on Subject: below --
2016-09-21 12:15 [PATCH 0/4] powerpc/powernv: PCI Surprise Hotplug Support Gavin Shan
2016-09-21 12:15 ` [PATCH 4/4] drivers/pci/hotplug: Support surprise hotplug Gavin Shan
2016-09-21 16:57 ` Bjorn Helgaas
2016-09-22 10:51 ` Michael Ellerman
2016-09-26 13:08 ` Gavin Shan
2016-09-26 13:11 ` Bjorn Helgaas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160921122047.GA9104@gwshan \
--to=gwshan@linux.vnet.ibm.com \
--cc=linuxppc-dev@ozlabs.org \
--cc=mpe@ellerman.id.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.