118 static inline u32 vdc_tx_dring_avail(struct vio_dring_state *dr)  in vdc_tx_dring_avail()  argument
120 	return vio_dring_avail(dr, VDC_TX_RING_SIZE);  in vdc_tx_dring_avail()
178 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in vdc_blk_queue_start()  local
184 	if (port->disk && vdc_tx_dring_avail(dr) * 100 / VDC_TX_RING_SIZE >= 50)  in vdc_blk_queue_start()
304 static void vdc_end_one(struct vdc_port *port, struct vio_dring_state *dr,  in vdc_end_one()  argument
307 	struct vio_disk_desc *desc = vio_dring_entry(dr, index);  in vdc_end_one()
316 	dr->cons = vio_dring_next(dr, index);  in vdc_end_one()
333 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in vdc_ack()  local
336 	if (unlikely(pkt->dring_ident != dr->ident ||  in vdc_ack()
341 	vdc_end_one(port, dr, pkt->start_idx);  in vdc_ack()
424 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in __vdc_tx_trigger()  local
432 		.dring_ident		= dr->ident,  in __vdc_tx_trigger()
433 		.start_idx		= dr->prod,  in __vdc_tx_trigger()
434 		.end_idx		= dr->prod,  in __vdc_tx_trigger()
439 	hdr.seq = dr->snd_nxt;  in __vdc_tx_trigger()
444 			dr->snd_nxt++;  in __vdc_tx_trigger()
462 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in __send_request()  local
491 	desc = vio_dring_cur(dr);  in __send_request()
501 	rqe = &port->rq_arr[dr->prod];  in __send_request()
528 		dr->prod = vio_dring_next(dr, dr->prod);  in __send_request()
538 	struct vio_dring_state *dr;  in vdc_queue_rq()  local
541 	dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in vdc_queue_rq()
555 	if (unlikely(vdc_tx_dring_avail(dr) < 1)) {  in vdc_queue_rq()
572 	struct vio_dring_state *dr;  in generic_request()  local
654 	dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in generic_request()
659 	desc = vio_dring_cur(dr);  in generic_request()
692 		dr->prod = vio_dring_next(dr, dr->prod);  in generic_request()
712 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in vdc_alloc_tx_ring()  local
723 				    dr->cookies, &ncookies,  in vdc_alloc_tx_ring()
730 	dr->base = dring;  in vdc_alloc_tx_ring()
731 	dr->entry_size = entry_size;  in vdc_alloc_tx_ring()
732 	dr->num_entries = VDC_TX_RING_SIZE;  in vdc_alloc_tx_ring()
733 	dr->prod = dr->cons = 0;  in vdc_alloc_tx_ring()
734 	dr->pending = VDC_TX_RING_SIZE;  in vdc_alloc_tx_ring()
735 	dr->ncookies = ncookies;  in vdc_alloc_tx_ring()
742 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in vdc_free_tx_ring()  local
744 	if (dr->base) {  in vdc_free_tx_ring()
745 		ldc_free_exp_dring(port->vio.lp, dr->base,  in vdc_free_tx_ring()
746 				   (dr->entry_size * dr->num_entries),  in vdc_free_tx_ring()
747 				   dr->cookies, dr->ncookies);  in vdc_free_tx_ring()
748 		dr->base = NULL;  in vdc_free_tx_ring()
749 		dr->entry_size = 0;  in vdc_free_tx_ring()
750 		dr->num_entries = 0;  in vdc_free_tx_ring()
751 		dr->pending = 0;  in vdc_free_tx_ring()
752 		dr->ncookies = 0;  in vdc_free_tx_ring()
1101 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];  in vdc_requeue_inflight()  local
1104 	for (idx = dr->cons; idx != dr->prod; idx = vio_dring_next(dr, idx)) {  in vdc_requeue_inflight()
1105 		struct vio_disk_desc *desc = vio_dring_entry(dr, idx);  in vdc_requeue_inflight()
1111 		dr->cons = vio_dring_next(dr, idx);  in vdc_requeue_inflight()