lib/virtio/virtqueue.c

221                     setup->vring_ndesc,
226     if (setup->vring_ndesc == 0 || !IS_POW2(setup->vring_ndesc)) {
227         VIRTIO_DEBUG_VQ("ERROR: invalid size: %u\n", setup->vring_ndesc);
231     size_t size = vring_size(setup->vring_ndesc, setup->vring_align);
235         size += setup->vring_ndesc * (1UL << setup->buffer_bits);
239         size += setup->vring_ndesc * (1UL << setup->header_bits);
282     if (setup->vring_ndesc == 0 || !IS_POW2(setup->vring_ndesc)) {
283         VIRTIO_DEBUG_VQ("ERROR: invalid size: %u\n", setup->vring_ndesc);
289                         setup->vring_ndesc,
304     size_t vring_mem_size = vring_size(setup->vring_ndesc, setup->vring_align);
308         vring_mem_size += setup->vring_ndesc * (1UL << setup->buffer_bits);
312         vring_mem_size += setup->vring_ndesc * (1UL << setup->header_bits);
331                 sizeof(struct virtqueue) + (setup->vring_ndesc
341     vq->desc_num = setup->vring_ndesc;
346     vq->free_count = setup->vring_ndesc;
365         lpaddr_t offset = vring_size(setup->vring_ndesc, setup->vring_align);
369                         setup->vring_ndesc, offset);
371         err = virtio_buffer_alloc_init_vq(&vq->buffer_alloc, vring_cap,buf_start , offset, (1UL<<vq->buffer_bits), setup->vring_ndesc);