43 #define POOL_ALLOC_SIZE		(sizeof(struct desc) * (RX_DESCS + TX_DESCS))
263 	struct desc *desc_tab;	/* coherent */
292 struct desc {  struct
315 				 (n) * sizeof(struct desc))  argument
319 				 ((n) + RX_DESCS) * sizeof(struct desc))
573 static inline void debug_desc(u32 phys, struct desc *desc)  in debug_desc()  argument
577 	       phys, desc->next, desc->buf_len, desc->pkt_len,  in debug_desc()
578 	       desc->data, desc->status, desc->error_count);  in debug_desc()
586 	struct desc *tab;  in queue_get_desc()
594 	n_desc = (phys - tab_phys) / sizeof(struct desc);  in queue_get_desc()
602 				  struct desc *desc)  in queue_put_desc()  argument
604 	debug_desc(phys, desc);  in queue_put_desc()
612 static inline void dma_unmap_tx(struct port *port, struct desc *desc)  in dma_unmap_tx()  argument
615 	dma_unmap_single(&port->netdev->dev, desc->data,  in dma_unmap_tx()
616 			 desc->buf_len, DMA_TO_DEVICE);  in dma_unmap_tx()
618 	dma_unmap_single(&port->netdev->dev, desc->data & ~3,  in dma_unmap_tx()
619 			 ALIGN((desc->data & 3) + desc->buf_len, 4),  in dma_unmap_tx()
668 		struct desc *desc;  in hss_hdlc_poll()  local
699 		desc = rx_desc_ptr(port, n);  in hss_hdlc_poll()
701 		if (desc->error_count)  in hss_hdlc_poll()
703 			       " errors %u\n", dev->name, desc->status,  in hss_hdlc_poll()
704 			       desc->error_count);  in hss_hdlc_poll()
707 		switch (desc->status) {  in hss_hdlc_poll()
720 			skb = netdev_alloc_skb(dev, desc->pkt_len);  in hss_hdlc_poll()
740 				   desc->status, desc->error_count);  in hss_hdlc_poll()
746 			desc->buf_len = RX_SIZE;  in hss_hdlc_poll()
747 			desc->pkt_len = desc->status = 0;  in hss_hdlc_poll()
748 			queue_put_desc(rxfreeq, rx_desc_phys(port, n), desc);  in hss_hdlc_poll()
756 		dma_unmap_single(&dev->dev, desc->data,  in hss_hdlc_poll()
759 		dma_sync_single_for_cpu(&dev->dev, desc->data,  in hss_hdlc_poll()
762 			      ALIGN(desc->pkt_len, 4) / 4);  in hss_hdlc_poll()
764 		skb_put(skb, desc->pkt_len);  in hss_hdlc_poll()
776 		desc->data = phys;  in hss_hdlc_poll()
778 		desc->buf_len = RX_SIZE;  in hss_hdlc_poll()
779 		desc->pkt_len = 0;  in hss_hdlc_poll()
780 		queue_put_desc(rxfreeq, rx_desc_phys(port, n), desc);  in hss_hdlc_poll()
801 		struct desc *desc;  in hss_hdlc_txdone_irq()  local
804 		desc = tx_desc_ptr(port, n_desc);  in hss_hdlc_txdone_irq()
807 		dev->stats.tx_bytes += desc->pkt_len;  in hss_hdlc_txdone_irq()
809 		dma_unmap_tx(port, desc);  in hss_hdlc_txdone_irq()
819 			       tx_desc_phys(port, n_desc), desc);  in hss_hdlc_txdone_irq()
837 	struct desc *desc;  in hss_hdlc_xmit()  local
881 	desc = tx_desc_ptr(port, n);  in hss_hdlc_xmit()
888 	desc->data = phys + offset;  in hss_hdlc_xmit()
889 	desc->buf_len = desc->pkt_len = len;  in hss_hdlc_xmit()
892 	queue_put_desc(queue_ids[port->id].tx, tx_desc_phys(port, n), desc);  in hss_hdlc_xmit()
988 		struct desc *desc = rx_desc_ptr(port, i);  in init_hdlc_queues()  local
1000 		desc->buf_len = RX_SIZE;  in init_hdlc_queues()
1001 		desc->data = dma_map_single(&port->netdev->dev, data,  in init_hdlc_queues()
1003 		if (dma_mapping_error(&port->netdev->dev, desc->data)) {  in init_hdlc_queues()
1019 			struct desc *desc = rx_desc_ptr(port, i);  in destroy_hdlc_queues()  local
1023 						 desc->data, RX_SIZE,  in destroy_hdlc_queues()
1029 			struct desc *desc = tx_desc_ptr(port, i);  in destroy_hdlc_queues()  local
1032 				dma_unmap_tx(port, desc);  in destroy_hdlc_queues()