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| author |   Jason Wang <jasowang@redhat.com> | 2022-09-27 15:48:08 +0800 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2022-10-07 09:32:40 -0400 |
| commit | 90fea5a800c3dd80fb8ad9a02929bcef5fde42b8 (patch) | |
| tree | ab3dca9a87fff91f118f5d868c7ab545a7e6d727 /include/uapi | |
| parent | virtio-net: use mtu size as buffer length for big packets (diff) | |
| download | linux-dev-90fea5a800c3dd80fb8ad9a02929bcef5fde42b8.tar.xz linux-dev-90fea5a800c3dd80fb8ad9a02929bcef5fde42b8.zip | |
vdpa: device feature provisioning
This patch allows the device features to be provisioned through
netlink. A new attribute is introduced to allow the userspace to pass
a 64bit device features during device adding.
This provides several advantages:
- Allow to provision a subset of the features to ease the cross vendor
live migration.
- Better debug-ability for vDPA framework and parent.
Reviewed-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220927074810.28627-2-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/vdpa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index 25c55cab3d7c..9dc855f37c59 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -52,6 +52,8 @@ enum vdpa_attr { VDPA_ATTR_DEV_VENDOR_ATTR_NAME, /* string */ VDPA_ATTR_DEV_VENDOR_ATTR_VALUE, /* u64 */ + VDPA_ATTR_DEV_FEATURES, /* u64 */ + /* new attributes must be added above here */ VDPA_ATTR_MAX, }; |