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head/sys/dev/virtio/virtqueue.c
| Show First 20 Lines • Show All 136 Lines • ▼ Show 20 Lines | |||||
| uint64_t | uint64_t | ||||
| virtqueue_filter_features(uint64_t features) | virtqueue_filter_features(uint64_t features) | ||||
| { | { | ||||
| uint64_t mask; | uint64_t mask; | ||||
| mask = (1 << VIRTIO_TRANSPORT_F_START) - 1; | mask = (1 << VIRTIO_TRANSPORT_F_START) - 1; | ||||
| mask |= VIRTIO_RING_F_INDIRECT_DESC; | mask |= VIRTIO_RING_F_INDIRECT_DESC; | ||||
| mask |= VIRTIO_RING_F_EVENT_IDX; | mask |= VIRTIO_RING_F_EVENT_IDX; | ||||
| mask |= VIRTIO_F_VERSION_1; | |||||
| return (features & mask); | return (features & mask); | ||||
| } | } | ||||
| int | int | ||||
| virtqueue_alloc(device_t dev, uint16_t queue, uint16_t size, int align, | virtqueue_alloc(device_t dev, uint16_t queue, uint16_t size, int align, | ||||
| vm_paddr_t highaddr, struct vq_alloc_info *info, struct virtqueue **vqp) | vm_paddr_t highaddr, struct vq_alloc_info *info, struct virtqueue **vqp) | ||||
| { | { | ||||
| ▲ Show 20 Lines • Show All 708 Lines • Show Last 20 Lines | |||||