diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-01 06:45:08 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-01 06:45:08 +0900 |
| commit | e12ca23d41bd157354a5d1aadff30211a410c53a (patch) | |
| tree | e195ce5b9cf9d83fdef9fa5c8bcef132b9ade567 /include/linux/virtio.h | |
| parent | 850761b2b13aec5d4f9935199e917f9a4ae00cce (diff) | |
| parent | 7a66f784375c5922315bbe879b789ee50b924d26 (diff) | |
| download | blackbird-op-linux-e12ca23d41bd157354a5d1aadff30211a410c53a.tar.gz blackbird-op-linux-e12ca23d41bd157354a5d1aadff30211a410c53a.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
virtio_net: delay TX callbacks
virtio: add api for delayed callbacks
virtio_test: support event index
vhost: support event index
virtio_ring: support event idx feature
virtio ring: inline function to check for events
virtio: event index interface
virtio: add full three-clause BSD text to headers.
virtio balloon: kill tell-host-first logic
virtio console: don't manually set or finalize VIRTIO_CONSOLE_F_MULTIPORT.
drivers, block: virtio_blk: Replace cryptic number with the macro
virtio_blk: allow re-reading config space at runtime
lguest: remove support for VIRTIO_F_NOTIFY_ON_EMPTY.
lguest: fix up compilation after move
lguest: fix timer interrupt setup
Diffstat (limited to 'include/linux/virtio.h')
| -rw-r--r-- | include/linux/virtio.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h index aff5b4f74041..710885749605 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -51,6 +51,13 @@ struct virtqueue { * This re-enables callbacks; it returns "false" if there are pending * buffers in the queue, to detect a possible race between the driver * checking for more work, and enabling callbacks. + * virtqueue_enable_cb_delayed: restart callbacks after disable_cb. + * vq: the struct virtqueue we're talking about. + * This re-enables callbacks but hints to the other side to delay + * interrupts until most of the available buffers have been processed; + * it returns "false" if there are many pending buffers in the queue, + * to detect a possible race between the driver checking for more work, + * and enabling callbacks. * virtqueue_detach_unused_buf: detach first unused buffer * vq: the struct virtqueue we're talking about. * Returns NULL or the "data" token handed to add_buf @@ -86,6 +93,8 @@ void virtqueue_disable_cb(struct virtqueue *vq); bool virtqueue_enable_cb(struct virtqueue *vq); +bool virtqueue_enable_cb_delayed(struct virtqueue *vq); + void *virtqueue_detach_unused_buf(struct virtqueue *vq); /** |
