Currently a VFIO driver's IOMMU capabilities are encoded as a series of
numerical defines. Replace this with an enum for future maintainability.
Signed-off-by: Antonios Motakis <a.motakis@xxxxxxxxxxxxxxxxxxxxxx>
---
include/uapi/linux/vfio.h | 21 ++++++++++-----------
1 file changed, 10 insertions(+), 11 deletions(-)
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 6612974..1e39842 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -19,19 +19,18 @@
/* Kernel & User level defines for VFIO IOCTLs. */
-/* Extensions */
-
-#define VFIO_TYPE1_IOMMU 1
-#define VFIO_SPAPR_TCE_IOMMU 2
-#define VFIO_TYPE1v2_IOMMU 3
/*
- * IOMMU enforces DMA cache coherence (ex. PCIe NoSnoop stripping). This
- * capability is subject to change as groups are added or removed.
+ * Capabilities exposed by the VFIO IOMMU driver. Some capabilities are subject
+ * to change as groups are added or removed.
*/
-#define VFIO_DMA_CC_IOMMU 4
-
-/* Check if EEH is supported */
-#define VFIO_EEH 5
+enum vfio_iommu_cap {
+ VFIO_TYPE1_IOMMU = 1,
+ VFIO_SPAPR_TCE_IOMMU = 2,
+ VFIO_TYPE1v2_IOMMU = 3,
+ VFIO_DMA_CC_IOMMU = 4, /* IOMMU enforces DMA cache coherence
+ (ex. PCIe NoSnoop stripping) */
+ VFIO_EEH = 5, /* Check if EEH is supported */
+};
/*
* The IOCTL interface is designed for extensibility by embedding the
--
2.1.1
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