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Sender: "Linuxppc-dev" On 24/09/2019 16:39, Frederic Barrat wrote: > > > 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. Not really necessary, just mention the exact sha1 or tag in the cover letter next time. Thanks, > >   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(-) >>> >> > -- Alexey