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* VIRTIO_F_NOTIFICATION_DATA: extra data to devicesMichael S. Tsirkin2018-12-121-0/+5
| | | | | | | | | | | | Some devices benefit from ability to find out the number of available descriptors in the ring: for efficiency or as a debugging aid. To help with these optimizations, add a new feature: VIRTIO_F_NOTIFICATION_DATA. When negotiated, driver notifications to the device include this extra information. Fixes: https://github.com/oasis-tcs/virtio-spec/issues/26 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* Revert "VIRTIO_F_NOTIFICATION_DATA: extra data to devices"Michael S. Tsirkin2018-04-261-5/+0
| | | | | | | | This reverts commit 396b1957817e0bd14697e28d9fe61bfc80f1350f. Was pushed by mistake. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* VIRTIO_F_NOTIFICATION_DATA: extra data to devicesMichael S. Tsirkin2018-03-271-0/+5
Some devices benefit from ability to find out the number of available descriptors in the ring: for efficiency or as a debugging aid. To help with these optimizations, add a new feature: VIRTIO_F_NOTIFICATION_DATA. When negotiated, driver notifications to the device include this extra information. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>