Commit 6bdf2afd authored by Amit Shah's avatar Amit Shah Committed by Rusty Russell

virtio: console: Add a list of portdevs that are active

The virtio_console.c driver is capable of handling multiple devices at a
time. Maintain a list of devices for future traversal.
Signed-off-by: default avatarAmit Shah <amit.shah@redhat.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 8ad37e83
......@@ -48,6 +48,9 @@ struct ports_driver_data {
/* Used for exporting per-port information to debugfs */
struct dentry *debugfs_dir;
/* List of all the devices we're handling */
struct list_head portdevs;
/* Number of devices this driver is handling */
unsigned int index;
......@@ -108,6 +111,9 @@ struct port_buffer {
* ports for that device (vdev->priv).
*/
struct ports_device {
/* Next portdev in the list, head is in the pdrvdata struct */
struct list_head list;
/*
* Workqueue handlers where we process deferred work after
* notification
......@@ -1599,6 +1605,10 @@ static int __devinit virtcons_probe(struct virtio_device *vdev)
add_port(portdev, 0);
}
spin_lock_irq(&pdrvdata_lock);
list_add_tail(&portdev->list, &pdrvdata.portdevs);
spin_unlock_irq(&pdrvdata_lock);
__send_control_msg(portdev, VIRTIO_CONSOLE_BAD_ID,
VIRTIO_CONSOLE_DEVICE_READY, 1);
return 0;
......@@ -1625,6 +1635,10 @@ static void virtcons_remove(struct virtio_device *vdev)
portdev = vdev->priv;
spin_lock_irq(&pdrvdata_lock);
list_del(&portdev->list);
spin_unlock_irq(&pdrvdata_lock);
/* Disable interrupts for vqs */
vdev->config->reset(vdev);
/* Finish up work that's lined up */
......@@ -1691,6 +1705,7 @@ static int __init init(void)
PTR_ERR(pdrvdata.debugfs_dir));
}
INIT_LIST_HEAD(&pdrvdata.consoles);
INIT_LIST_HEAD(&pdrvdata.portdevs);
return register_virtio_driver(&virtio_console);
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment