rte_free(dev);
}
+static __rte_always_inline int
+log_translate(struct virtio_net *dev, struct vhost_virtqueue *vq)
+{
+ if (likely(!(vq->ring_addrs.flags & (1 << VHOST_VRING_F_LOG))))
+ return 0;
+
+ vq->log_guest_addr = translate_log_addr(dev, vq,
+ vq->ring_addrs.log_guest_addr);
+ if (vq->log_guest_addr == 0)
+ return -1;
+
+ return 0;
+}
+
+/*
+ * Converts vring log address to GPA
+ * If IOMMU is enabled, the log address is IOVA
+ * If IOMMU not enabled, the log address is already GPA
+ *
+ * Caller should have iotlb_lock read-locked
+ */
+uint64_t
+translate_log_addr(struct virtio_net *dev, struct vhost_virtqueue *vq,
+ uint64_t log_addr)
+{
+ if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM)) {
+ const uint64_t exp_size = sizeof(uint64_t);
+ uint64_t hva, gpa;
+ uint64_t size = exp_size;
+
+ hva = vhost_iova_to_vva(dev, vq, log_addr,
+ &size, VHOST_ACCESS_RW);
+
+ if (size != exp_size)
+ return 0;
+
+ gpa = hva_to_gpa(dev, hva, exp_size);
+ if (!gpa) {
+ VHOST_LOG_CONFIG(ERR,
+ "VQ: Failed to find GPA for log_addr: 0x%"
+ PRIx64 " hva: 0x%" PRIx64 "\n",
+ log_addr, hva);
+ return 0;
+ }
+ return gpa;
+
+ } else
+ return log_addr;
+}
+
+/* Caller should have iotlb_lock read-locked */
static int
vring_translate_split(struct virtio_net *dev, struct vhost_virtqueue *vq)
{
return 0;
}
+/* Caller should have iotlb_lock read-locked */
static int
vring_translate_packed(struct virtio_net *dev, struct vhost_virtqueue *vq)
{
if (vring_translate_split(dev, vq) < 0)
return -1;
}
+
+ if (log_translate(dev, vq) < 0)
+ return -1;
+
vq->access_ok = 1;
return 0;
dev->vid = i;
dev->flags = VIRTIO_DEV_BUILTIN_VIRTIO_NET;
dev->slave_req_fd = -1;
- dev->vdpa_dev_id = -1;
dev->postcopy_ufd = -1;
rte_spinlock_init(&dev->slave_req_lock);
vhost_destroy_device_notify(struct virtio_net *dev)
{
struct rte_vdpa_device *vdpa_dev;
- int did;
if (dev->flags & VIRTIO_DEV_RUNNING) {
- did = dev->vdpa_dev_id;
- vdpa_dev = rte_vdpa_get_device(did);
+ vdpa_dev = dev->vdpa_dev;
if (vdpa_dev && vdpa_dev->ops->dev_close)
vdpa_dev->ops->dev_close(dev->vid);
dev->flags &= ~VIRTIO_DEV_RUNNING;
}
void
-vhost_attach_vdpa_device(int vid, int did)
+vhost_attach_vdpa_device(int vid, struct rte_vdpa_device *vdpa_dev)
{
struct virtio_net *dev = get_device(vid);
if (dev == NULL)
return;
- if (rte_vdpa_get_device(did) == NULL)
- return;
-
- dev->vdpa_dev_id = did;
+ dev->vdpa_dev = vdpa_dev;
}
void
return ret;
}
-int rte_vhost_get_vdpa_device_id(int vid)
+struct rte_vdpa_device *
+rte_vhost_get_vdpa_device(int vid)
{
struct virtio_net *dev = get_device(vid);
if (dev == NULL)
- return -1;
+ return NULL;
- return dev->vdpa_dev_id;
+ return dev->vdpa_dev;
}
int rte_vhost_get_log_base(int vid, uint64_t *log_base,