VQASSERT
VQASSERT(vq, dxp->ndescs == 0,
VQASSERT((_vq), (_idx) < (_vq)->vq_nentries, \
VQASSERT((_vq), (_vq)->vq_desc_head_idx == \
VQASSERT(vq, nused <= vq->vq_nentries, "used more than available");
VQASSERT(vq, cookie != NULL, "enqueuing with no cookie");
VQASSERT(vq, needed == sg->sg_nseg,
VQASSERT(vq,
VQASSERT(vq, dxp->cookie == NULL,
VQASSERT(vq, cookie != NULL, "no cookie for index %d", desc_idx);
VQASSERT(vq, idx != VQ_RING_DESC_CHAIN_END,
VQASSERT(vq, needed <= vq->vq_max_indirect_size,
VQASSERT(vq, dxp->cookie == NULL,