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

Alex Williamson posted 4 patches 2 years, 8 months ago
Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Richard Henderson <richard.henderson@linaro.org>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Alex Williamson <alex.williamson@redhat.com>, "Cédric Le Goater" <clg@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>
There is a newer version of this series
[RFC PATCH 1/4] linux-headers: Update for vfio capability reporting AtomicOps
Posted by Alex Williamson 2 years, 8 months ago 
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
Re: [RFC PATCH 1/4] linux-headers: Update for vfio capability reporting AtomicOps
Posted by Cédric Le Goater 2 years, 7 months ago 
On 5/19/23 23:57, Alex Williamson wrote:
> 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>
> ---
I am preparing a vfio-next tree including these changes plus a linux-headers
update. I am just waiting for the 6.5-rc1 tag to be pushed.

Thanks,

C.

>   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)

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