89 static inline u16 next_desc(port_t *port, u16 desc, int transmit)  in next_desc()  argument
91 	return (desc + 1) % (transmit ? port_to_card(port)->tx_ring_buffers  in next_desc()
95 static inline u16 desc_abs_number(port_t *port, u16 desc, int transmit)  in desc_abs_number()  argument
100 	desc %= (transmit ? tx_buffs : rx_buffs); // called with "X + 1" etc.  in desc_abs_number()
102 		transmit * rx_buffs + desc;  in desc_abs_number()
105 static inline u16 desc_offset(port_t *port, u16 desc, int transmit)  in desc_offset()  argument
108 	return desc_abs_number(port, desc, transmit) * sizeof(pkt_desc);  in desc_offset()
111 static inline pkt_desc __iomem *desc_address(port_t *port, u16 desc,  in desc_address()  argument
116 				    + desc_offset(port, desc, transmit));  in desc_address()
119 				    + desc_offset(port, desc, transmit));  in desc_address()
123 static inline u32 buffer_offset(port_t *port, u16 desc, int transmit)  in buffer_offset()  argument
126 		desc_abs_number(port, desc, transmit) * (u32)HDLC_MAX_MRU;  in buffer_offset()
165 			pkt_desc __iomem *desc = desc_address(port, i, transmit);  in sca_init_port()  local
169 			writew(chain_off, &desc->cp);  in sca_init_port()
170 			writel(buff_off, &desc->bp);  in sca_init_port()
171 			writew(0, &desc->len);  in sca_init_port()
172 			writeb(0, &desc->stat);  in sca_init_port()
237 static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc,  in sca_rx()  argument
247 	len = readw(&desc->len);  in sca_rx()
301 		pkt_desc __iomem *desc;  in sca_rx_intr()  local
307 		desc = desc_address(port, port->rxin, 0);  in sca_rx_intr()
308 		stat = readb(&desc->stat);  in sca_rx_intr()
323 			sca_rx(card, port, desc, port->rxin);  in sca_rx_intr()
352 		pkt_desc __iomem *desc;  in sca_tx_intr()  local
360 		desc = desc_address(port, port->txlast, 1);  in sca_tx_intr()
362 		dev->stats.tx_bytes += readw(&desc->len);  in sca_tx_intr()
363 		writeb(0, &desc->stat);	/* Free descriptor */  in sca_tx_intr()
630 	pkt_desc __iomem *desc;  in sca_xmit()  local
637 	desc = desc_address(port, port->txin + 1, 1);  in sca_xmit()
638 	BUG_ON(readb(&desc->stat)); /* previous xmit should stop queue */  in sca_xmit()
645 	desc = desc_address(port, port->txin, 1);  in sca_xmit()
664 	writew(len, &desc->len);  in sca_xmit()
665 	writeb(ST_TX_EOM, &desc->stat);  in sca_xmit()
673 	desc = desc_address(port, port->txin + 1, 1);  in sca_xmit()
674 	if (readb(&desc->stat)) /* allow 1 packet gap */  in sca_xmit()