diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-12 09:31:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-12 09:31:52 -0700 |
| commit | 16ffc3eeaa00d513b0076b7b2b96419f28acc912 (patch) | |
| tree | 82503d25fb9091fc6628961d953ffc0d305adf27 /include/linux/virtio_ring.h | |
| parent | c34752bc8b3196aee3115d1aa41972604ab0aea8 (diff) | |
| parent | e3353853730eb99c56b7b0aed1667d51c0e3699a (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-virtio
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-virtio:
virtio: enhance id_matching for virtio drivers
virtio: fix id_matching for virtio drivers
virtio: handle short buffers in virtio_rng.
virtio_blk: add missing __dev{init,exit} markings
virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC)
virtio: teach virtio_has_feature() about transport features
virtio: expose features in sysfs
virtio_pci: optional MSI-X support
virtio_pci: split up vp_interrupt
virtio: find_vqs/del_vqs virtio operations
virtio: add names to virtqueue struct, mapping from devices to queues.
virtio: meet virtio spec by finalizing features before using device
virtio: fix obsolete documentation on probe function
Diffstat (limited to 'include/linux/virtio_ring.h')
| -rw-r--r-- | include/linux/virtio_ring.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index 71e03722fb5..693e0ec5afa 100644 --- a/include/linux/virtio_ring.h +++ b/include/linux/virtio_ring.h @@ -14,6 +14,8 @@ #define VRING_DESC_F_NEXT 1 /* This marks a buffer as write-only (otherwise read-only). */ #define VRING_DESC_F_WRITE 2 +/* This means the buffer contains a list of buffer descriptors. */ +#define VRING_DESC_F_INDIRECT 4 /* The Host uses this in used->flags to advise the Guest: don't kick me when * you add a buffer. It's unreliable, so it's simply an optimization. Guest @@ -24,6 +26,9 @@ * optimization. */ #define VRING_AVAIL_F_NO_INTERRUPT 1 +/* We support indirect buffer descriptors */ +#define VIRTIO_RING_F_INDIRECT_DESC 28 + /* Virtio ring descriptors: 16 bytes. These can chain together via "next". */ struct vring_desc { @@ -119,7 +124,8 @@ struct virtqueue *vring_new_virtqueue(unsigned int num, struct virtio_device *vdev, void *pages, void (*notify)(struct virtqueue *vq), - void (*callback)(struct virtqueue *vq)); + void (*callback)(struct virtqueue *vq), + const char *name); void vring_del_virtqueue(struct virtqueue *vq); /* Filter out transport-specific feature bits. */ void vring_transport_features(struct virtio_device *vdev); |