int enabled;
int access_ok;
int ready;
+ int notif_enable;
+#define VIRTIO_UNINITIALIZED_NOTIF (-1)
+
rte_spinlock_t access_lock;
/* Used to notify the guest (trigger interrupt) */
return 0;
}
+static __rte_always_inline rte_iova_t
+gpa_to_first_hpa(struct virtio_net *dev, uint64_t gpa,
+ uint64_t gpa_size, uint64_t *hpa_size)
+{
+ uint32_t i;
+ struct guest_page *page;
+ struct guest_page key;
+
+ *hpa_size = gpa_size;
+ if (dev->nr_guest_pages >= VHOST_BINARY_SEARCH_THRESH) {
+ key.guest_phys_addr = gpa & ~(dev->guest_pages[0].size - 1);
+ page = bsearch(&key, dev->guest_pages, dev->nr_guest_pages,
+ sizeof(struct guest_page), guest_page_addrcmp);
+ if (page) {
+ if (gpa + gpa_size <=
+ page->guest_phys_addr + page->size) {
+ return gpa - page->guest_phys_addr +
+ page->host_phys_addr;
+ } else if (gpa < page->guest_phys_addr +
+ page->size) {
+ *hpa_size = page->guest_phys_addr +
+ page->size - gpa;
+ return gpa - page->guest_phys_addr +
+ page->host_phys_addr;
+ }
+ }
+ } else {
+ for (i = 0; i < dev->nr_guest_pages; i++) {
+ page = &dev->guest_pages[i];
+
+ if (gpa >= page->guest_phys_addr) {
+ if (gpa + gpa_size <=
+ page->guest_phys_addr + page->size) {
+ return gpa - page->guest_phys_addr +
+ page->host_phys_addr;
+ } else if (gpa < page->guest_phys_addr +
+ page->size) {
+ *hpa_size = page->guest_phys_addr +
+ page->size - gpa;
+ return gpa - page->guest_phys_addr +
+ page->host_phys_addr;
+ }
+ }
+ }
+ }
+
+ *hpa_size = 0;
+ return 0;
+}
+
static __rte_always_inline uint64_t
hva_to_gpa(struct virtio_net *dev, uint64_t vva, uint64_t len)
{
void vhost_set_builtin_virtio_net(int vid, bool enable);
void vhost_enable_extbuf(int vid);
void vhost_enable_linearbuf(int vid);
+int vhost_enable_guest_notification(struct virtio_net *dev,
+ struct vhost_virtqueue *vq, int enable);
struct vhost_device_ops const *vhost_driver_callback_get(const char *path);