can: Proper ctrlmode handling for CAN devices

[safe/jmp/linux-2.6] / include / linux / virtio.h

diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 9410394..057a2e0 100644 (file)
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -10,14 +10,17 @@
 
 /**
  * virtqueue - a queue to register buffers for sending or receiving.
+ * @list: the chain of virtqueues for this device
  * @callback: the function to call when buffers are consumed (can be NULL).
+ * @name: the name of this virtqueue (mainly for debugging)
  * @vdev: the virtio device this queue was created for.
  * @vq_ops: the operations for this virtqueue (see below).
  * @priv: a pointer for the virtqueue implementation to use.
  */
-struct virtqueue
-{
+struct virtqueue {
+       struct list_head list;
        void (*callback)(struct virtqueue *vq);
+       const char *name;
        struct virtio_device *vdev;
        struct virtqueue_ops *vq_ops;
        void *priv;
@@ -31,7 +34,7 @@ struct virtqueue
  *     out_num: the number of sg readable by other side
  *     in_num: the number of sg which are writable (after readable ones)
  *     data: the token identifying the buffer.
- *      Returns 0 or an error.
+ *      Returns remaining capacity of queue (sg segments) or a negative error.
  * @kick: update after add_buf
  *     vq: the struct virtqueue
  *     After one or more add_buf calls, invoke this to kick the other side.
@@ -76,15 +79,16 @@ struct virtqueue_ops {
  * @dev: underlying device.
  * @id: the device type identification (used to match it with a driver).
  * @config: the configuration ops for this device.
+ * @vqs: the list of virtqueues for this device.
  * @features: the features supported by both driver and device.
  * @priv: private pointer for the driver's use.
  */
-struct virtio_device
-{
+struct virtio_device {
        int index;
        struct device dev;
        struct virtio_device_id id;
        struct virtio_config_ops *config;
+       struct list_head vqs;
        /* Note that this is a Linux set_bit-style bitmap. */
        unsigned long features[1];
        void *priv;