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author | 2009-06-12 22:16:35 -0600 | |
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committer | 2009-06-12 22:16:36 +0930 | |
commit | 9499f5e7ed5224c40706f0cec6542a9916bc7606 (patch) | |
tree | 3e4e1b36d3d549ea356e88e6e44359a887c6ee01 /include/linux/virtio.h | |
parent | virtio: meet virtio spec by finalizing features before using device (diff) | |
download | linux-9499f5e7ed5224c40706f0cec6542a9916bc7606.tar.gz linux-9499f5e7ed5224c40706f0cec6542a9916bc7606.tar.bz2 linux-9499f5e7ed5224c40706f0cec6542a9916bc7606.zip |
virtio: add names to virtqueue struct, mapping from devices to queues.
Add a linked list of all virtqueues for a virtio device: this helps for
debugging and is also needed for upcoming interface change.
Also, add a "name" field for clearer debug messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/virtio.h')
-rw-r--r-- | include/linux/virtio.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 9410394bbf96..4fca4f5440ba 100644 --- 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; @@ -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; |