RE: [RFC 00/10] Adds pcitest tool support for MSI-X

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Hi Gustavo,

On 10 April 2018 18:15 Gustavo Pimentel wrote:
> This patch set depends the following series:
> https://lkml.org/lkml/2018/4/10/421> This series aims to add pcitest tool support for MSI-X.
> 
> Includes new callbacks methods and handlers to trigger the MSI-X
> interruptions on the EP Designware IP driver.
> 
> Provides new methods on pci_epf_test driver that allows to set/get EP
> maximum number of MSI-X entries (similar to set/get MSI methods).
> 
> Reworks on MSI set/get and triggering methods on EP Designware IP driver to
> be more generic and flexible.
> 
> Adds a new input parameter (msix) and replicates the whole MSI mechanism
> applied to the MSI-X feature on pcitest tool. Also updates the pcitest script
> with the new test set applied to this new feature.
> 
> Gustavo Pimentel (10):
>   PCI: dwc: Add MSI-X callbacks handler
>   PCI: cadence: Update cdns_pcie_ep_raise_irq function signature
>   PCI: endpoint: Add MSI-X interfaces
>   PCI: dwc: MSI callbacks handler rework
>   PCI: dwc: Add legacy interrupt callback handler
>   misc: pci_endpoint_test: Add MSI-X support
>   misc: pci_endpoint_test: Replace lower into upper case characters
>   PCI: endpoint: functions/pci-epf-test: Add MSI-X support
>   PCI: endpoint: functions/pci-epf-test: Replace lower into upper case
>     characters
>   tools: PCI: Add MSI-X support
> 
>  Documentation/misc-devices/pci-endpoint-test.txt |   3 +
>  drivers/misc/pci_endpoint_test.c                 | 120 ++++++++++----
>  drivers/pci/cadence/pcie-cadence-ep.c            |   2 +-
>  drivers/pci/dwc/pci-dra7xx.c                     |   2 +-
>  drivers/pci/dwc/pcie-artpec6.c                   |   2 +-
>  drivers/pci/dwc/pcie-designware-ep.c             | 201
> +++++++++++++++++++++--
>  drivers/pci/dwc/pcie-designware-plat.c           |   9 +-
>  drivers/pci/dwc/pcie-designware.h                |  40 +++--
>  drivers/pci/endpoint/functions/pci-epf-test.c    | 113 +++++++++----
>  drivers/pci/endpoint/pci-ep-cfs.c                |  24 +++
>  drivers/pci/endpoint/pci-epc-core.c              |  60 ++++++-
>  include/linux/pci-epc.h                          |  11 +-
>  include/linux/pci-epf.h                          |   1 +
>  include/uapi/linux/pcitest.h                     |   1 +
>  tools/pci/pcitest.c                              |  18 +-
>  tools/pci/pcitest.sh                             |  25 +++
>  16 files changed, 528 insertions(+), 104 deletions(-)
> 
> --
> 2.7.4
> 
Nice set of patches.  I have tested this with the Cadence EP driver after adding MSI-X support, and found a few changes required.
I will send you comments.

Thanks,
Alan
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