From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antonios Motakis Subject: [PATCH v2 1/6] vfio: implement iommu driver capabilities with an enum Date: Mon, 27 Oct 2014 19:05:50 +0100 Message-ID: <1414433155-31600-2-git-send-email-a.motakis@virtualopensystems.com> References: <1414433155-31600-1-git-send-email-a.motakis@virtualopensystems.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1414433155-31600-1-git-send-email-a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: kvmarm-FPEHb7Xf0XXUo1n7N8X6UoWGPAHP3yOg@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: "open list:VFIO DRIVER" , eric.auger-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, marc.zyngier-5wv7dgnIgG8@public.gmane.org, "open list:ABI/API" , will.deacon-5wv7dgnIgG8@public.gmane.org, open list , Antonios Motakis , tech-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org, christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org List-Id: linux-api@vger.kernel.org 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 --- 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