62 #define	MODER_IFG	(1 <<  6) /* interframe gap for incoming frames */
81 #define	INT_MASK_RXC	(1 << 6) /* receive control frame */
159 #define	RX_BD_OR	(1 <<  6) /* receiver overrun */
254 		struct ethoc_bd *bd)  in ethoc_read_bd()  argument
257 	bd->stat = ethoc_read(dev, offset + 0);  in ethoc_read_bd()
258 	bd->addr = ethoc_read(dev, offset + 4);  in ethoc_read_bd()
262 		const struct ethoc_bd *bd)  in ethoc_write_bd()  argument
265 	ethoc_write(dev, offset + 0, bd->stat);  in ethoc_write_bd()
266 	ethoc_write(dev, offset + 4, bd->addr);  in ethoc_write_bd()
304 	struct ethoc_bd bd;  in ethoc_init_ring()  local
315 	bd.addr = mem_start;  in ethoc_init_ring()
316 	bd.stat = TX_BD_IRQ | TX_BD_CRC;  in ethoc_init_ring()
321 			bd.stat |= TX_BD_WRAP;  in ethoc_init_ring()
323 		ethoc_write_bd(dev, i, &bd);  in ethoc_init_ring()
324 		bd.addr += ETHOC_BUFSIZ;  in ethoc_init_ring()
330 	bd.stat = RX_BD_EMPTY | RX_BD_IRQ;  in ethoc_init_ring()
334 			bd.stat |= RX_BD_WRAP;  in ethoc_init_ring()
336 		ethoc_write_bd(dev, dev->num_tx + i, &bd);  in ethoc_init_ring()
337 		bd.addr += ETHOC_BUFSIZ;  in ethoc_init_ring()
374 		struct ethoc_bd *bd)  in ethoc_update_rx_stats()  argument
379 	if (bd->stat & RX_BD_TL) {  in ethoc_update_rx_stats()
385 	if (bd->stat & RX_BD_SF) {  in ethoc_update_rx_stats()
391 	if (bd->stat & RX_BD_DN) {  in ethoc_update_rx_stats()
396 	if (bd->stat & RX_BD_CRC) {  in ethoc_update_rx_stats()
402 	if (bd->stat & RX_BD_OR) {  in ethoc_update_rx_stats()
408 	if (bd->stat & RX_BD_MISS)  in ethoc_update_rx_stats()
411 	if (bd->stat & RX_BD_LC) {  in ethoc_update_rx_stats()
427 		struct ethoc_bd bd;  in ethoc_rx()  local
430 		ethoc_read_bd(priv, entry, &bd);  in ethoc_rx()
431 		if (bd.stat & RX_BD_EMPTY) {  in ethoc_rx()
440 			ethoc_read_bd(priv, entry, &bd);  in ethoc_rx()
441 			if (bd.stat & RX_BD_EMPTY)  in ethoc_rx()
445 		if (ethoc_update_rx_stats(priv, &bd) == 0) {  in ethoc_rx()
446 			int size = bd.stat >> 16;  in ethoc_rx()
470 		bd.stat &= ~RX_BD_STATS;  in ethoc_rx()
471 		bd.stat |=  RX_BD_EMPTY;  in ethoc_rx()
472 		ethoc_write_bd(priv, entry, &bd);  in ethoc_rx()
480 static void ethoc_update_tx_stats(struct ethoc *dev, struct ethoc_bd *bd)  in ethoc_update_tx_stats()  argument
484 	if (bd->stat & TX_BD_LC) {  in ethoc_update_tx_stats()
489 	if (bd->stat & TX_BD_RL) {  in ethoc_update_tx_stats()
494 	if (bd->stat & TX_BD_UR) {  in ethoc_update_tx_stats()
499 	if (bd->stat & TX_BD_CS) {  in ethoc_update_tx_stats()
504 	if (bd->stat & TX_BD_STATS)  in ethoc_update_tx_stats()
507 	netdev->stats.collisions += (bd->stat >> 4) & 0xf;  in ethoc_update_tx_stats()
508 	netdev->stats.tx_bytes += bd->stat >> 16;  in ethoc_update_tx_stats()
516 	struct ethoc_bd bd;  in ethoc_tx()  local
523 		ethoc_read_bd(priv, entry, &bd);  in ethoc_tx()
525 		if (bd.stat & TX_BD_READY || (priv->dty_tx == priv->cur_tx)) {  in ethoc_tx()
527 			/* If interrupt came in between reading in the BD  in ethoc_tx()
534 			ethoc_read_bd(priv, entry, &bd);  in ethoc_tx()
535 			if (bd.stat & TX_BD_READY ||  in ethoc_tx()
540 		ethoc_update_tx_stats(priv, &bd);  in ethoc_tx()
883 	struct ethoc_bd bd;  in ethoc_start_xmit()  local
901 	ethoc_read_bd(priv, entry, &bd);  in ethoc_start_xmit()
903 		bd.stat |=  TX_BD_PAD;  in ethoc_start_xmit()
905 		bd.stat &= ~TX_BD_PAD;  in ethoc_start_xmit()
910 	bd.stat &= ~(TX_BD_STATS | TX_BD_LEN_MASK);  in ethoc_start_xmit()
911 	bd.stat |= TX_BD_LEN(skb->len);  in ethoc_start_xmit()
912 	ethoc_write_bd(priv, entry, &bd);  in ethoc_start_xmit()
914 	bd.stat |= TX_BD_READY;  in ethoc_start_xmit()
915 	ethoc_write_bd(priv, entry, &bd);  in ethoc_start_xmit()