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authorMichael S. Tsirkin <mst@redhat.com>2012-11-01 13:16:46 +0400
committerDavid S. Miller <davem@davemloft.net>2012-11-03 05:29:58 +0400
commitb211616d712551874db3ce0fb44196f6faad2c34 (patch)
tree3945dbbf5d533828e0e31396dfb3ae582ffb7fff /drivers/vhost/vhost.h
parentc4fcb586c337f8b8de3a3d7ba8514eed03695f6e (diff)
downloadlinux-b211616d712551874db3ce0fb44196f6faad2c34.tar.xz
vhost: move -net specific code out
Zerocopy handling code is vhost-net specific. Move it from vhost.c/vhost.h out to net.c Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost/vhost.h')
-rw-r--r--drivers/vhost/vhost.h21
1 files changed, 3 insertions, 18 deletions
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 464469d901d5..5e19e3d5db8c 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -7,27 +7,11 @@
#include <linux/mutex.h>
#include <linux/poll.h>
#include <linux/file.h>
-#include <linux/skbuff.h>
#include <linux/uio.h>
#include <linux/virtio_config.h>
#include <linux/virtio_ring.h>
#include <linux/atomic.h>
-/*
- * For transmit, used buffer len is unused; we override it to track buffer
- * status internally; used for zerocopy tx only.
- */
-/* Lower device DMA failed */
-#define VHOST_DMA_FAILED_LEN 3
-/* Lower device DMA done */
-#define VHOST_DMA_DONE_LEN 2
-/* Lower device DMA in progress */
-#define VHOST_DMA_IN_PROGRESS 1
-/* Buffer unused */
-#define VHOST_DMA_CLEAR_LEN 0
-
-#define VHOST_DMA_IS_DONE(len) ((len) >= VHOST_DMA_DONE_LEN)
-
struct vhost_device;
struct vhost_work;
@@ -80,6 +64,8 @@ struct vhost_ubuf_ref *vhost_ubuf_alloc(struct vhost_virtqueue *, bool zcopy);
void vhost_ubuf_put(struct vhost_ubuf_ref *);
void vhost_ubuf_put_and_wait(struct vhost_ubuf_ref *);
+struct ubuf_info;
+
/* The virtqueue structure describes a queue attached to a device. */
struct vhost_virtqueue {
struct vhost_dev *dev;
@@ -177,6 +163,7 @@ long vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue *vqs, int nvqs);
long vhost_dev_check_owner(struct vhost_dev *);
long vhost_dev_reset_owner(struct vhost_dev *);
void vhost_dev_cleanup(struct vhost_dev *, bool locked);
+void vhost_dev_stop(struct vhost_dev *);
long vhost_dev_ioctl(struct vhost_dev *, unsigned int ioctl, unsigned long arg);
int vhost_vq_access_ok(struct vhost_virtqueue *vq);
int vhost_log_access_ok(struct vhost_dev *);
@@ -201,8 +188,6 @@ bool vhost_enable_notify(struct vhost_dev *, struct vhost_virtqueue *);
int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log,
unsigned int log_num, u64 len);
-void vhost_zerocopy_callback(struct ubuf_info *, bool);
-int vhost_zerocopy_signal_used(struct vhost_virtqueue *vq);
#define vq_err(vq, fmt, ...) do { \
pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \