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path: root/drivers/virtio/virtio_pci_common.h
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Diffstat (limited to 'drivers/virtio/virtio_pci_common.h')
-rw-r--r--drivers/virtio/virtio_pci_common.h25
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index 3cdabba8415e..e96334aec1e0 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -31,6 +31,17 @@
#include <linux/highmem.h>
#include <linux/spinlock.h>
+struct virtio_pci_vq_info {
+ /* the actual virtqueue */
+ struct virtqueue *vq;
+
+ /* the list node for the virtqueues list */
+ struct list_head node;
+
+ /* MSI-X vector (or none) */
+ unsigned msix_vector;
+};
+
/* Our device structure */
struct virtio_pci_device {
struct virtio_device vdev;
@@ -64,6 +75,13 @@ struct virtio_pci_device {
/* the IO mapping for the PCI config space */
void __iomem *ioaddr;
+ /* a list of queues so we can dispatch IRQs */
+ spinlock_t lock;
+ struct list_head virtqueues;
+
+ /* array of all queues for house-keeping */
+ struct virtio_pci_vq_info **vqs;
+
/* MSI-X support */
int msix_enabled;
int intx_enabled;
@@ -76,15 +94,16 @@ struct virtio_pci_device {
/* Vectors allocated, excluding per-vq vectors if any */
unsigned msix_used_vectors;
- /* Map of per-VQ MSI-X vectors, may be NULL */
- unsigned *msix_vector_map;
+ /* Whether we have vector per vq */
+ bool per_vq_vectors;
struct virtqueue *(*setup_vq)(struct virtio_pci_device *vp_dev,
+ struct virtio_pci_vq_info *info,
unsigned idx,
void (*callback)(struct virtqueue *vq),
const char *name,
u16 msix_vec);
- void (*del_vq)(struct virtqueue *vq);
+ void (*del_vq)(struct virtio_pci_vq_info *info);
u16 (*config_vector)(struct virtio_pci_device *vp_dev, u16 vector);
};