diff options
Diffstat (limited to 'qemu/include/hw/virtio/dataplane')
| -rw-r--r-- | qemu/include/hw/virtio/dataplane/vring-accessors.h | 75 | ||||
| -rw-r--r-- | qemu/include/hw/virtio/dataplane/vring.h | 49 |
2 files changed, 0 insertions, 124 deletions
diff --git a/qemu/include/hw/virtio/dataplane/vring-accessors.h b/qemu/include/hw/virtio/dataplane/vring-accessors.h deleted file mode 100644 index 815c19b6e..000000000 --- a/qemu/include/hw/virtio/dataplane/vring-accessors.h +++ /dev/null @@ -1,75 +0,0 @@ -#ifndef VRING_ACCESSORS_H -#define VRING_ACCESSORS_H - -#include "standard-headers/linux/virtio_ring.h" -#include "hw/virtio/virtio.h" -#include "hw/virtio/virtio-access.h" - -static inline uint16_t vring_get_used_idx(VirtIODevice *vdev, Vring *vring) -{ - return virtio_tswap16(vdev, vring->vr.used->idx); -} - -static inline void vring_set_used_idx(VirtIODevice *vdev, Vring *vring, - uint16_t idx) -{ - vring->vr.used->idx = virtio_tswap16(vdev, idx); -} - -static inline uint16_t vring_get_avail_idx(VirtIODevice *vdev, Vring *vring) -{ - return virtio_tswap16(vdev, vring->vr.avail->idx); -} - -static inline uint16_t vring_get_avail_ring(VirtIODevice *vdev, Vring *vring, - int i) -{ - return virtio_tswap16(vdev, vring->vr.avail->ring[i]); -} - -static inline void vring_set_used_ring_id(VirtIODevice *vdev, Vring *vring, - int i, uint32_t id) -{ - vring->vr.used->ring[i].id = virtio_tswap32(vdev, id); -} - -static inline void vring_set_used_ring_len(VirtIODevice *vdev, Vring *vring, - int i, uint32_t len) -{ - vring->vr.used->ring[i].len = virtio_tswap32(vdev, len); -} - -static inline uint16_t vring_get_used_flags(VirtIODevice *vdev, Vring *vring) -{ - return virtio_tswap16(vdev, vring->vr.used->flags); -} - -static inline uint16_t vring_get_avail_flags(VirtIODevice *vdev, Vring *vring) -{ - return virtio_tswap16(vdev, vring->vr.avail->flags); -} - -static inline void vring_set_used_flags(VirtIODevice *vdev, Vring *vring, - uint16_t flags) -{ - vring->vr.used->flags |= virtio_tswap16(vdev, flags); -} - -static inline void vring_clear_used_flags(VirtIODevice *vdev, Vring *vring, - uint16_t flags) -{ - vring->vr.used->flags &= virtio_tswap16(vdev, ~flags); -} - -static inline unsigned int vring_get_num(Vring *vring) -{ - return vring->vr.num; -} - -/* Are there more descriptors available? */ -static inline bool vring_more_avail(VirtIODevice *vdev, Vring *vring) -{ - return vring_get_avail_idx(vdev, vring) != vring->last_avail_idx; -} - -#endif diff --git a/qemu/include/hw/virtio/dataplane/vring.h b/qemu/include/hw/virtio/dataplane/vring.h deleted file mode 100644 index 8d97db9e2..000000000 --- a/qemu/include/hw/virtio/dataplane/vring.h +++ /dev/null @@ -1,49 +0,0 @@ -/* Copyright 2012 Red Hat, Inc. and/or its affiliates - * Copyright IBM, Corp. 2012 - * - * Based on Linux 2.6.39 vhost code: - * Copyright (C) 2009 Red Hat, Inc. - * Copyright (C) 2006 Rusty Russell IBM Corporation - * - * Author: Michael S. Tsirkin <mst@redhat.com> - * Stefan Hajnoczi <stefanha@redhat.com> - * - * Inspiration, some code, and most witty comments come from - * Documentation/virtual/lguest/lguest.c, by Rusty Russell - * - * This work is licensed under the terms of the GNU GPL, version 2. - */ - -#ifndef VRING_H -#define VRING_H - -#include "qemu-common.h" -#include "standard-headers/linux/virtio_ring.h" -#include "hw/virtio/virtio.h" - -typedef struct { - MemoryRegion *mr; /* memory region containing the vring */ - struct vring vr; /* virtqueue vring mapped to host memory */ - uint16_t last_avail_idx; /* last processed avail ring index */ - uint16_t last_used_idx; /* last processed used ring index */ - uint16_t signalled_used; /* EVENT_IDX state */ - bool signalled_used_valid; - bool broken; /* was there a fatal error? */ -} Vring; - -/* Fail future vring_pop() and vring_push() calls until reset */ -static inline void vring_set_broken(Vring *vring) -{ - vring->broken = true; -} - -bool vring_setup(Vring *vring, VirtIODevice *vdev, int n); -void vring_teardown(Vring *vring, VirtIODevice *vdev, int n); -void vring_disable_notification(VirtIODevice *vdev, Vring *vring); -bool vring_enable_notification(VirtIODevice *vdev, Vring *vring); -bool vring_should_notify(VirtIODevice *vdev, Vring *vring); -int vring_pop(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem); -void vring_push(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem, - int len); - -#endif /* VRING_H */ |