[RFC PATCH v2 1/4] linux-headers: Update for vfio capability reporting AtomicOps

[Alex Williamson]

This is a partial linux-headers update for illustrative and testing
purposes only, NOT FOR COMMIT.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
 linux-headers/linux/vfio.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index 4a534edbdcba..443a8851e156 100644
--- a/linux-headers/linux/vfio.h
+++ b/linux-headers/linux/vfio.h
@@ -240,6 +240,20 @@ struct vfio_device_info {
 #define VFIO_DEVICE_INFO_CAP_ZPCI_UTIL         3
 #define VFIO_DEVICE_INFO_CAP_ZPCI_PFIP         4
 
+/*
+ * The following VFIO_DEVICE_INFO capability reports support for PCIe AtomicOp
+ * completion to the root bus with supported widths provided via flags.
+ */
+#define VFIO_DEVICE_INFO_CAP_PCI_ATOMIC_COMP   5
+struct vfio_device_info_cap_pci_atomic_comp {
+       struct vfio_info_cap_header header;
+       __u32 flags;
+#define VFIO_PCI_ATOMIC_COMP32 (1 << 0)
+#define VFIO_PCI_ATOMIC_COMP64 (1 << 1)
+#define VFIO_PCI_ATOMIC_COMP128        (1 << 2)
+       __u32 reserved;
+};
+
 /**
  * VFIO_DEVICE_GET_REGION_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 8,
  *                                    struct vfio_region_info)
-- 
2.39.2