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From: Frederic Barrat <fbarrat@linux.ibm.com>
To: Alexey Kardashevskiy <aik@ozlabs.ru>,
	linuxppc-dev@lists.ozlabs.org, andrew.donnellan@au1.ibm.com,
	clombard@linux.ibm.com
Cc: groug@kaod.org, alastair@au1.ibm.com
Subject: Re: [PATCH 00/11] opencapi: enable card reset and link retraining
Date: Tue, 24 Sep 2019 08:39:51 +0200	[thread overview]
Message-ID: <9ccce9b5-bba8-2fab-6d82-59bf03bf8b36@linux.ibm.com> (raw)
In-Reply-To: <7e29a072-f212-5d09-05b5-dbc1ee0916f0@ozlabs.ru>



Le 24/09/2019 à 06:24, Alexey Kardashevskiy a écrit :
> Hi Fred,
> 
> what is this made against of? It does not apply on the master. Thanks,

It applies on v5.3. And I can see there's a conflict with the current 
state in the merge window. I'll resubmit.

   Fred



> On 10/09/2019 01:45, Frederic Barrat wrote:
>> This is the linux part of the work to use the PCI hotplug framework to
>> control an opencapi card so that it can be reset and re-read after
>> flashing a new FPGA image. I had posted it earlier as an RFC and this
>> version is mostly similar, with just some minor editing.
>>
>> It needs support in skiboot:
>> http://patchwork.ozlabs.org/project/skiboot/list/?series=129724
>> On an old skiboot, it will do nothing.
>>
>> A virtual PCI slot is created for the opencapi adapter, and its state
>> can be controlled through the pnv-php hotplug driver:
>>
>>    echo 0|1 > /sys/bus/pci/slots/OPENCAPI-<...>/power
>>
>> Note that the power to the card is not really turned off, as the card
>> needs to stay on to be flashed with a new image. Instead the card is
>> in reset.
>>
>> The first part of the series mostly deals with the pci/ioda state, as
>> the opencapi devices can now go away and the state needs to be cleaned
>> up.
>>
>> The second part is modifications to the PCI hotplug driver on powernv,
>> so that a virtual slot is created for the opencapi adapters found in
>> the device tree.
>>
>>
>>
>> Frederic Barrat (11):
>>    powerpc/powernv/ioda: Fix ref count for devices with their own PE
>>    powerpc/powernv/ioda: Protect PE list
>>    powerpc/powernv/ioda: set up PE on opencapi device when enabling
>>    powerpc/powernv/ioda: Release opencapi device
>>    powerpc/powernv/ioda: Find opencapi slot for a device node
>>    pci/hotplug/pnv-php: Remove erroneous warning
>>    pci/hotplug/pnv-php: Improve error msg on power state change failure
>>    pci/hotplug/pnv-php: Register opencapi slots
>>    pci/hotplug/pnv-php: Relax check when disabling slot
>>    pci/hotplug/pnv-php: Wrap warnings in macro
>>    ocxl: Add PCI hotplug dependency to Kconfig
>>
>>   arch/powerpc/include/asm/pnv-pci.h        |   1 +
>>   arch/powerpc/platforms/powernv/pci-ioda.c | 107 ++++++++++++++--------
>>   arch/powerpc/platforms/powernv/pci.c      |  10 +-
>>   drivers/misc/ocxl/Kconfig                 |   1 +
>>   drivers/pci/hotplug/pnv_php.c             |  82 ++++++++++-------
>>   5 files changed, 125 insertions(+), 76 deletions(-)
>>
> 


  reply	other threads:[~2019-09-24  6:42 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-09 15:45 [PATCH 00/11] opencapi: enable card reset and link retraining Frederic Barrat
2019-09-09 15:45 ` [PATCH 01/11] powerpc/powernv/ioda: Fix ref count for devices with their own PE Frederic Barrat
2019-09-10  0:20   ` Alastair D'Silva
2019-09-26 16:44   ` Andrew Donnellan
2019-09-26 17:15     ` Frederic Barrat
2019-09-27  6:54       ` Alexey Kardashevskiy
2019-11-12 17:38         ` Frederic Barrat
2019-11-18  1:04           ` Alistair Popple
2019-11-18  1:24             ` Oliver O'Halloran
2019-11-18  2:36               ` Alistair Popple
2019-11-18 18:21                 ` Frederic Barrat
2019-09-09 15:45 ` [PATCH 02/11] powerpc/powernv/ioda: Protect PE list Frederic Barrat
2019-09-10  0:34   ` Alastair D'Silva
2019-11-19 12:55     ` Frederic Barrat
2019-11-19 13:22       ` Oliver O'Halloran
2019-11-19 14:36         ` Frederic Barrat
2019-11-19  5:55   ` Andrew Donnellan
2019-09-09 15:45 ` [PATCH 03/11] powerpc/powernv/ioda: set up PE on opencapi device when enabling Frederic Barrat
2019-09-10  0:38   ` Alastair D'Silva
2019-09-27 16:43   ` Andrew Donnellan
2019-09-09 15:45 ` [PATCH 04/11] powerpc/powernv/ioda: Release opencapi device Frederic Barrat
2019-09-10  0:56   ` Alastair D'Silva
2019-11-19 17:32     ` Frederic Barrat
2019-11-19  7:08   ` Andrew Donnellan
2019-09-09 15:45 ` [PATCH 05/11] powerpc/powernv/ioda: Find opencapi slot for a device node Frederic Barrat
2019-09-10  0:57   ` Alastair D'Silva
2019-11-19  1:26   ` Andrew Donnellan
2019-11-19 14:33     ` Frederic Barrat
2019-09-09 15:45 ` [PATCH 06/11] pci/hotplug/pnv-php: Remove erroneous warning Frederic Barrat
2019-09-10  0:58   ` Alastair D'Silva
2019-11-19  5:00   ` Andrew Donnellan
2019-09-09 15:45 ` [PATCH 07/11] pci/hotplug/pnv-php: Improve error msg on power state change failure Frederic Barrat
2019-09-10  0:59   ` Alastair D'Silva
2019-11-19  2:23   ` Andrew Donnellan
2019-09-09 15:45 ` [PATCH 08/11] pci/hotplug/pnv-php: Register opencapi slots Frederic Barrat
2019-09-10  1:00   ` Alastair D'Silva
2019-11-19  5:18   ` Andrew Donnellan
2019-11-19 15:15     ` Frederic Barrat
2019-09-09 15:45 ` [PATCH 09/11] pci/hotplug/pnv-php: Relax check when disabling slot Frederic Barrat
2019-09-10  1:00   ` Alastair D'Silva
2019-09-27 15:56   ` Andrew Donnellan
2019-09-09 15:45 ` [PATCH 10/11] pci/hotplug/pnv-php: Wrap warnings in macro Frederic Barrat
2019-09-10  1:03   ` Alastair D'Silva
2019-09-26 17:18   ` Andrew Donnellan
2019-09-09 15:46 ` [PATCH 11/11] ocxl: Add PCI hotplug dependency to Kconfig Frederic Barrat
2019-09-10  1:03   ` Alastair D'Silva
2019-09-26 17:11   ` Andrew Donnellan
2019-09-24  4:24 ` [PATCH 00/11] opencapi: enable card reset and link retraining Alexey Kardashevskiy
2019-09-24  6:39   ` Frederic Barrat [this message]
2019-09-25  0:20     ` Alexey Kardashevskiy

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