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Groups > linux.kernel > #1502473

[PATCH v9 10/12] vfio: Add function to get device_api string from vfio_device_info.flags

From Kirti Wankhede <kwankhede@nvidia.com>
Newsgroups linux.kernel
Subject [PATCH v9 10/12] vfio: Add function to get device_api string from vfio_device_info.flags
Date 2016-10-17 23:30 +0200
Message-ID <stnDQ-JF-9@gated-at.bofh.it> (permalink)
References <stnDQ-JF-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Function vfio_device_api_string() returns string based on flag set in
vfio_device_info's flag. This should be used by vendor driver to get string
based on flag for device_api attribute.

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Neo Jia <cjia@nvidia.com>
Change-Id: I42d29f475f02a7132ce13297fbf2b48f1da10995
---
 drivers/vfio/vfio.c  | 15 +++++++++++++++
 include/linux/vfio.h |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 10ef1c5fa762..aec470454a13 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1917,6 +1917,21 @@ int vfio_set_irqs_validate_and_prepare(struct vfio_irq_set *hdr, int num_irqs,
 }
 EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
 
+const char *vfio_device_api_string(u32 flags)
+{
+	if (flags & VFIO_DEVICE_FLAGS_PCI)
+		return "vfio-pci";
+
+	if (flags & VFIO_DEVICE_FLAGS_PLATFORM)
+		return "vfio-platform";
+
+	if (flags & VFIO_DEVICE_FLAGS_AMBA)
+		return "vfio-amba";
+
+	return "";
+}
+EXPORT_SYMBOL(vfio_device_api_string);
+
 /*
  * Pin a set of guest PFNs and return their associated host PFNs for local
  * domain only.
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 31d059f1649b..fca2bf23c4f1 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -116,6 +116,8 @@ extern int vfio_set_irqs_validate_and_prepare(struct vfio_irq_set *hdr,
 					      int num_irqs, int max_irq_type,
 					      size_t *data_size);
 
+extern const char *vfio_device_api_string(u32 flags);
+
 struct pci_dev;
 #ifdef CONFIG_EEH
 extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev);
-- 
2.7.0

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[PATCH v9 00/12] Add Mediated device support Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
  [PATCH v9 10/12] vfio: Add function to get device_api string from vfio_device_info.flags Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    Re: [PATCH v9 10/12] vfio: Add function to get device_api string  from vfio_device_info.flags Alex Williamson <alex.williamson@redhat.com> - 2016-10-20 21:40 +0200
      Re: [PATCH v9 10/12] vfio: Add function to get device_api string from  vfio_device_info.flags Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-20 22:40 +0200
        Re: [PATCH v9 10/12] vfio: Add function to get device_api string  from vfio_device_info.flags Alex Williamson <alex.williamson@redhat.com> - 2016-10-20 23:10 +0200
          Re: [PATCH v9 10/12] vfio: Add function to get device_api string from  vfio_device_info.flags Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-20 23:20 +0200
            Re: [PATCH v9 10/12] vfio: Add function to get device_api string  from vfio_device_info.flags Alex Williamson <alex.williamson@redhat.com> - 2016-10-20 23:30 +0200
              Re: [PATCH v9 10/12] vfio: Add function to get device_api string from  vfio_device_info.flags Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-21 05:10 +0200
                Re: [PATCH v9 10/12] vfio: Add function to get device_api string  from vfio_device_info.flags Alex Williamson <alex.williamson@redhat.com> - 2016-10-21 05:30 +0200
  [PATCH v9 02/12] vfio: VFIO based driver for Mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    RE: [PATCH v9 02/12] vfio: VFIO based driver for Mediated devices "Tian, Kevin" <kevin.tian@intel.com> - 2016-10-26 09:00 +0200
      Re: [PATCH v9 02/12] vfio: VFIO based driver for Mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-26 17:10 +0200
  [PATCH v9 08/12] vfio_pci: Updated to use vfio_set_irqs_validate_and_prepare() Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
  [PATCH v9 11/12] docs: Add Documentation for Mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    Re: [PATCH v9 11/12] docs: Add Documentation for Mediated devices Alex Williamson <alex.williamson@redhat.com> - 2016-10-25 18:20 +0200
  [PATCH v9 09/12] vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
  [PATCH v9 04/12] vfio iommu: Add support for mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Alex Williamson <alex.williamson@redhat.com> - 2016-10-19 23:10 +0200
      Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-20 22:20 +0200
        Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Alex Williamson <alex.williamson@redhat.com> - 2016-10-24 04:40 +0200
          RE: [PATCH v9 04/12] vfio iommu: Add support for mediated devices "Tian, Kevin" <kevin.tian@intel.com> - 2016-10-26 09:30 +0200
            Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-26 17:10 +0200
      RE: [PATCH v9 04/12] vfio iommu: Add support for mediated devices "Tian, Kevin" <kevin.tian@intel.com> - 2016-10-26 10:00 +0200
        Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Alex Williamson <alex.williamson@redhat.com> - 2016-10-26 17:30 +0200
      RE: [PATCH v9 04/12] vfio iommu: Add support for mediated devices "Tian, Kevin" <kevin.tian@intel.com> - 2016-10-26 10:00 +0200
        Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Alex Williamson <alex.williamson@redhat.com> - 2016-10-26 17:20 +0200
    Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Jike Song <jike.song@intel.com> - 2016-10-21 10:00 +0200
      Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Alex Williamson <alex.williamson@redhat.com> - 2016-10-21 16:40 +0200
        Re: [PATCH v9 04/12] vfio iommu: Add support for mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-24 12:40 +0200
  [PATCH v9 06/12] vfio_pci: Update vfio_pci to use vfio_info_add_capability() Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    Re: [PATCH v9 06/12] vfio_pci: Update vfio_pci to use  vfio_info_add_capability() Alex Williamson <alex.williamson@redhat.com> - 2016-10-20 21:30 +0200
      Re: [PATCH v9 06/12] vfio_pci: Update vfio_pci to use  vfio_info_add_capability() Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-24 23:30 +0200
        Re: [PATCH v9 06/12] vfio_pci: Update vfio_pci to use  vfio_info_add_capability() Alex Williamson <alex.williamson@redhat.com> - 2016-10-24 23:40 +0200
  [PATCH v9 03/12] vfio: Rearrange functions to get vfio_group from dev Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    Re: [PATCH v9 03/12] vfio: Rearrange functions to get vfio_group  from dev Alex Williamson <alex.williamson@redhat.com> - 2016-10-19 19:30 +0200
  [PATCH v9 05/12] vfio: Introduce common function to add capabilities Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    Re: [PATCH v9 05/12] vfio: Introduce common function to add  capabilities Alex Williamson <alex.williamson@redhat.com> - 2016-10-20 21:30 +0200
      Re: [PATCH v9 05/12] vfio: Introduce common function to add  capabilities Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-24 23:30 +0200
        Re: [PATCH v9 05/12] vfio: Introduce common function to add  capabilities Alex Williamson <alex.williamson@redhat.com> - 2016-10-24 23:40 +0200
  [PATCH v9 01/12] vfio: Mediated device Core driver Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-17 23:30 +0200
    Re: [PATCH v9 01/12] vfio: Mediated device Core driver Alex Williamson <alex.williamson@redhat.com> - 2016-10-19 01:20 +0200
      Re: [PATCH v9 01/12] vfio: Mediated device Core driver Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-19 21:20 +0200
        Re: [PATCH v9 01/12] vfio: Mediated device Core driver Alex Williamson <alex.williamson@redhat.com> - 2016-10-20 00:30 +0200
    Re: [PATCH v9 01/12] vfio: Mediated device Core driver Jike Song <jike.song@intel.com> - 2016-10-20 09:30 +0200
      Re: [PATCH v9 01/12] vfio: Mediated device Core driver Alex Williamson <alex.williamson@redhat.com> - 2016-10-20 19:20 +0200
        Re: [PATCH v9 01/12] vfio: Mediated device Core driver Jike Song <jike.song@intel.com> - 2016-10-21 04:50 +0200
    RE: [PATCH v9 01/12] vfio: Mediated device Core driver "Tian, Kevin" <kevin.tian@intel.com> - 2016-10-26 09:00 +0200
      Re: [PATCH v9 01/12] vfio: Mediated device Core driver Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-26 17:00 +0200
  Re: [PATCH v9 00/12] Add Mediated device support Alex Williamson <alex.williamson@redhat.com> - 2016-10-17 23:50 +0200
  Re: [PATCH v9 12/12] docs: Sample driver to demonstrate how to use  Mediated device framework. Alex Williamson <alex.williamson@redhat.com> - 2016-10-18 19:20 +0200
    Re: [PATCH v9 12/12] docs: Sample driver to demonstrate how to use  Mediated device framework. Kirti Wankhede <kwankhede@nvidia.com> - 2016-10-19 21:20 +0200
  Re: [PATCH v9 00/12] Add Mediated device support Jike Song <jike.song@intel.com> - 2016-10-24 09:20 +0200

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