/* The routine to call when the Guest pings us, or timeout. */
void (*handle_output)(struct virtqueue *me, bool timeout);
- /* Outstanding buffers */
- unsigned int inflight;
-
/* Is this blocked awaiting a timer? */
bool blocked;
};
errx(1, "Looped descriptor");
} while ((i = next_desc(vq, i)) != vq->vring.num);
- vq->inflight++;
return head;
}
/* Make sure buffer is written before we update index. */
wmb();
vq->vring.used->idx++;
- vq->inflight--;
}
/* This actually sends the interrupt for this virtqueue */
/* If they don't want an interrupt, don't send one, unless empty. */
if ((vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT)
- && vq->inflight)
+ && lg_last_avail(vq) != vq->vring.avail->idx)
return;
/* Send the Guest an interrupt tell them we used something up. */
vq->next = NULL;
vq->last_avail_idx = 0;
vq->dev = dev;
- vq->inflight = 0;
vq->blocked = false;
/* Initialize the configuration. */