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()
112 					     int transmit)  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()
149 	int transmit, i;  in sca_init_port()  local
159 	for (transmit = 0; transmit < 2; transmit++) {  in sca_init_port()
160 		u16 dmac = transmit ? get_dmac_tx(port) : get_dmac_rx(port);  in sca_init_port()
161 		u16 buffs = transmit ? card->tx_ring_buffers  in sca_init_port()
165 			pkt_desc __iomem *desc = desc_address(port, i, transmit);  in sca_init_port()
166 			u16 chain_off = desc_offset(port, i + 1, transmit);  in sca_init_port()
167 			u32 buff_off = buffer_offset(port, i, transmit);  in sca_init_port()
176 		sca_out(0, transmit ? DSR_TX(phy_node(port)) :  in sca_init_port()
179 		sca_out(DCR_ABORT, transmit ? DCR_TX(phy_node(port)) :  in sca_init_port()
184 		sca_outw(desc_offset(port, 0, transmit), dmac + CDAL, card);  in sca_init_port()
185 		if (!transmit)  in sca_init_port()
186 			sca_outw(desc_offset(port, buffs - 1, transmit),  in sca_init_port()
189 			sca_outw(desc_offset(port, 0, transmit), dmac + EDAL,  in sca_init_port()
193 		sca_out(DCR_CLEAR_EOF, transmit ? DCR_TX(phy_node(port)) :  in sca_init_port()
196 		if (!transmit) { /* Receive */  in sca_init_port()
205 		} else {	/* Transmit */  in sca_init_port()
335 /* Transmit DMA interrupt service */