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Searched refs:last_used_idx (Results 1 – 10 of 10) sorted by relevance

/linux/tools/virtio/ringtest/
H A Dvirtio_ring_0_9.c43 unsigned short last_used_idx; member
80 guest.last_used_idx = 0; in alloc_ring()
159 head = (ring_size - 1) & guest.last_used_idx; in get_buf()
161 if ((index ^ guest.last_used_idx ^ 0x8000) & ~(ring_size - 1)) in get_buf()
167 if (ring.used->idx == guest.last_used_idx) in get_buf()
172 head = (ring_size - 1) & guest.last_used_idx; in get_buf()
175 head = (ring_size - 1) & guest.last_used_idx; in get_buf()
193 guest.last_used_idx++; in get_buf()
199 unsigned short last_used_idx = guest.last_used_idx; in used_empty() local
201 unsigned short head = last_used_idx & (ring_size - 1); in used_empty()
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H A Dring.c61 unsigned last_used_idx; member
94 guest.last_used_idx = 0; in alloc_ring()
145 unsigned head = (ring_size - 1) & guest.last_used_idx; in get_buf()
160 guest.last_used_idx++; in get_buf()
166 unsigned head = (ring_size - 1) & guest.last_used_idx; in used_empty()
180 event->call_index = guest.last_used_idx; in enable_call()
/linux/drivers/virtio/
H A Dvirtio_ring.c194 u16 last_used_idx; member
426 vq->last_used_idx = 0 | (1 << VRING_PACKED_EVENT_F_WRAP_CTR); in virtqueue_init()
428 vq->last_used_idx = 0; in virtqueue_init()
807 return vq->last_used_idx != virtio16_to_cpu(vq->vq.vdev, in more_used_split()
836 last_used = (vq->last_used_idx & (vq->split.vring.num - 1)); in virtqueue_get_buf_ctx_split()
854 vq->last_used_idx++; in virtqueue_get_buf_ctx_split()
861 cpu_to_virtio16(_vq->vdev, vq->last_used_idx)); in virtqueue_get_buf_ctx_split()
896 u16 last_used_idx; in virtqueue_enable_cb_prepare_split() local
913 last_used_idx = vq->last_used_idx); in virtqueue_enable_cb_prepare_split()
915 return last_used_idx; in virtqueue_enable_cb_prepare_split()
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/linux/drivers/vhost/
H A Dvhost.c368 vq->last_used_idx = 0; in vhost_vq_reset()
1307 return vhost_put_user(vq, cpu_to_vhost16(vq, vq->last_used_idx), in vhost_put_used_idx()
1994 vq->last_used_idx = (s.num >> 16) & 0xffff; in vhost_vring_ioctl()
2008 s.num = (u32)vq->last_avail_idx | ((u32)vq->last_used_idx << 16); in vhost_vring_ioctl()
2381 __virtio16 last_used_idx; in vhost_vq_init_access() local
2399 r = vhost_get_used_idx(vq, &last_used_idx); in vhost_vq_init_access()
2405 vq->last_used_idx = vhost16_to_cpu(vq, last_used_idx); in vhost_vq_init_access()
2724 start = vq->last_used_idx & (vq->num - 1); in __vhost_add_used_n()
2737 old = vq->last_used_idx; in __vhost_add_used_n()
2738 new = (vq->last_used_idx += count); in __vhost_add_used_n()
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H A Dvringh.c462 used_idx = vrh->last_used_idx + vrh->completed; in __vringh_complete()
536 vrh->last_used_idx + vrh->completed, in __vringh_need_notify()
537 vrh->last_used_idx); in __vringh_need_notify()
539 vrh->last_used_idx += vrh->completed; in __vringh_need_notify()
673 vrh->last_used_idx = 0; in vringh_init_user()
947 vrh->last_used_idx = 0; in vringh_init_kern()
H A Dvdpa.c704 vq->last_used_idx = vq_state.packed.last_used_idx | in vhost_vdpa_vring_ioctl()
743 vq_state.packed.last_used_idx = vq->last_used_idx & 0x7fff; in vhost_vdpa_vring_ioctl()
744 vq_state.packed.last_used_counter = !!(vq->last_used_idx & 0x8000); in vhost_vdpa_vring_ioctl()
/linux/include/uapi/linux/
H A Dvduse.h150 * @last_used_idx: used index
156 __u16 last_used_idx; member
/linux/include/linux/
H A Dvringh.h42 u16 last_used_idx; member
H A Dvdpa.h58 u16 last_used_idx:15; member
/linux/drivers/vdpa/pds/
H A Dvdpa_dev.c190 used = state->packed.last_used_idx | in pds_vdpa_set_vq_state()
246 state->packed.last_used_idx = used & 0x7fff; in pds_vdpa_get_vq_state()