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authorMichael S. Tsirkin <mst@redhat.com>2009-06-12 22:16:36 -0600
committerRusty Russell <rusty@rustcorp.com.au>2009-06-12 22:16:36 +0930
commitd2a7ddda9ffb1c8961abff6714b0f1eb925c120f (patch)
tree1090884fd260d042255255467367e4e6b6193e5d /drivers/char/virtio_console.c
parent9499f5e7ed5224c40706f0cec6542a9916bc7606 (diff)
virtio: find_vqs/del_vqs virtio operations
This replaces find_vq/del_vq with find_vqs/del_vqs virtio operations, and updates all drivers. This is needed for MSI support, because MSI needs to know the total number of vectors upfront. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (+ lguest/9p compile fixes)
Diffstat (limited to 'drivers/char/virtio_console.c')
-rw-r--r--drivers/char/virtio_console.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 58684e4a0814..c74dacfa6795 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -188,6 +188,9 @@ static void hvc_handle_input(struct virtqueue *vq)
* Finally we put our input buffer in the input queue, ready to receive. */
static int __devinit virtcons_probe(struct virtio_device *dev)
{
+ vq_callback_t *callbacks[] = { hvc_handle_input, NULL};
+ const char *names[] = { "input", "output" };
+ struct virtqueue *vqs[2];
int err;
vdev = dev;
@@ -199,20 +202,15 @@ static int __devinit virtcons_probe(struct virtio_device *dev)
goto fail;
}
- /* Find the input queue. */
+ /* Find the queues. */
/* FIXME: This is why we want to wean off hvc: we do nothing
* when input comes in. */
- in_vq = vdev->config->find_vq(vdev, 0, hvc_handle_input, "input");
- if (IS_ERR(in_vq)) {
- err = PTR_ERR(in_vq);
+ err = vdev->config->find_vqs(vdev, 2, vqs, callbacks, names);
+ if (err)
goto free;
- }
- out_vq = vdev->config->find_vq(vdev, 1, NULL, "output");
- if (IS_ERR(out_vq)) {
- err = PTR_ERR(out_vq);
- goto free_in_vq;
- }
+ in_vq = vqs[0];
+ out_vq = vqs[1];
/* Start using the new console output. */
virtio_cons.get_chars = get_chars;
@@ -233,17 +231,15 @@ static int __devinit virtcons_probe(struct virtio_device *dev)
hvc = hvc_alloc(0, 0, &virtio_cons, PAGE_SIZE);
if (IS_ERR(hvc)) {
err = PTR_ERR(hvc);
- goto free_out_vq;
+ goto free_vqs;
}
/* Register the input buffer the first time. */
add_inbuf();
return 0;
-free_out_vq:
- vdev->config->del_vq(out_vq);
-free_in_vq:
- vdev->config->del_vq(in_vq);
+free_vqs:
+ vdev->config->del_vqs(vdev);
free:
kfree(inbuf);
fail: