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virtio: add names to virtqueue struct, mapping from devices to queues.

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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>
This commit is contained in:
Rusty Russell 2009-06-12 22:16:35 -06:00
parent ef688e151c
commit 9499f5e7ed
14 changed files with 56 additions and 31 deletions
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5
drivers/virtio/virtio_pci.c
View file

@ -208,7 +208,8 @@ static irqreturn_t vp_interrupt(int irq, void *opaque)
/* the config->find_vq() implementation */
static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
void (*callback)(struct virtqueue *vq))
void (*callback)(struct virtqueue *vq),
const char *name)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
struct virtio_pci_vq_info *info;
@ -247,7 +248,7 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
/* create the vring */
vq = vring_new_virtqueue(info->num, VIRTIO_PCI_VRING_ALIGN,
vdev, info->queue, vp_notify, callback);
vdev, info->queue, vp_notify, callback, name);
if (!vq) {
err = -ENOMEM;
goto out_activate_queue;