273 #define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\
274 			lp->tx_old+TX_RING_MOD_MASK-lp->tx_new:\
275 			lp->tx_old - lp->tx_new-1)
301 static void load_csrs(struct lance_private *lp)  in load_csrs()  argument
303 	volatile struct lance_regs *ll = lp->ll;  in load_csrs()
316 	writereg(&ll->rdp, lp->busmaster_regval);  in load_csrs()
450 	struct lance_private *lp = netdev_priv(dev);  in lance_init_ring()  local
457 	lp->rx_new = lp->tx_new = 0;  in lance_init_ring()
458 	lp->rx_old = lp->tx_old = 0;  in lance_init_ring()
463 	*lib_ptr(ib, phys_addr[0], lp->type) = (dev->dev_addr[1] << 8) |  in lance_init_ring()
465 	*lib_ptr(ib, phys_addr[1], lp->type) = (dev->dev_addr[3] << 8) |  in lance_init_ring()
467 	*lib_ptr(ib, phys_addr[2], lp->type) = (dev->dev_addr[5] << 8) |  in lance_init_ring()
473 	*lib_ptr(ib, rx_len, lp->type) = (LANCE_LOG_RX_BUFFERS << 13) |  in lance_init_ring()
475 	*lib_ptr(ib, rx_ptr, lp->type) = leptr;  in lance_init_ring()
478 		       leptr, (uint)lib_off(brx_ring, lp->type));  in lance_init_ring()
482 	*lib_ptr(ib, tx_len, lp->type) = (LANCE_LOG_TX_BUFFERS << 13) |  in lance_init_ring()
484 	*lib_ptr(ib, tx_ptr, lp->type) = leptr;  in lance_init_ring()
487 		       leptr, (uint)lib_off(btx_ring, lp->type));  in lance_init_ring()
494 		leptr = lp->tx_buf_ptr_lnc[i];  in lance_init_ring()
495 		*lib_ptr(ib, btx_ring[i].tmd0, lp->type) = leptr;  in lance_init_ring()
496 		*lib_ptr(ib, btx_ring[i].tmd1, lp->type) = (leptr >> 16) &  in lance_init_ring()
498 		*lib_ptr(ib, btx_ring[i].length, lp->type) = 0xf000;  in lance_init_ring()
500 		*lib_ptr(ib, btx_ring[i].misc, lp->type) = 0;  in lance_init_ring()
503 			       i, leptr, lp->tx_buf_ptr_cpu[i]);  in lance_init_ring()
510 		leptr = lp->rx_buf_ptr_lnc[i];  in lance_init_ring()
511 		*lib_ptr(ib, brx_ring[i].rmd0, lp->type) = leptr;  in lance_init_ring()
512 		*lib_ptr(ib, brx_ring[i].rmd1, lp->type) = ((leptr >> 16) &  in lance_init_ring()
515 		*lib_ptr(ib, brx_ring[i].length, lp->type) = -RX_BUFF_SIZE |  in lance_init_ring()
517 		*lib_ptr(ib, brx_ring[i].mblength, lp->type) = 0;  in lance_init_ring()
520 			       i, leptr, lp->rx_buf_ptr_cpu[i]);  in lance_init_ring()
525 static int init_restart_lance(struct lance_private *lp)  in init_restart_lance()  argument
527 	volatile struct lance_regs *ll = lp->ll;  in init_restart_lance()
556 	struct lance_private *lp = netdev_priv(dev);  in lance_rx()  local
569 			if (i == lp->rx_new)  in lance_rx()
571 						      lp->type) &  in lance_rx()
575 						      lp->type) &  in lance_rx()
582 	for (rd = lib_ptr(ib, brx_ring[lp->rx_new], lp->type);  in lance_rx()
583 	     !((bits = *rds_ptr(rd, rmd1, lp->type)) & LE_R1_OWN);  in lance_rx()
584 	     rd = lib_ptr(ib, brx_ring[lp->rx_new], lp->type)) {  in lance_rx()
585 		entry = lp->rx_new;  in lance_rx()
606 			len = (*rds_ptr(rd, mblength, lp->type) & 0xfff) - 4;  in lance_rx()
611 				*rds_ptr(rd, mblength, lp->type) = 0;  in lance_rx()
612 				*rds_ptr(rd, rmd1, lp->type) =  in lance_rx()
613 					((lp->rx_buf_ptr_lnc[entry] >> 16) &  in lance_rx()
615 				lp->rx_new = (entry + 1) & RX_RING_MOD_MASK;  in lance_rx()
623 			cp_from_buf(lp->type, skb->data,  in lance_rx()
624 				    lp->rx_buf_ptr_cpu[entry], len);  in lance_rx()
632 		*rds_ptr(rd, mblength, lp->type) = 0;  in lance_rx()
633 		*rds_ptr(rd, length, lp->type) = -RX_BUFF_SIZE | 0xf000;  in lance_rx()
634 		*rds_ptr(rd, rmd1, lp->type) =  in lance_rx()
635 			((lp->rx_buf_ptr_lnc[entry] >> 16) & 0xff) | LE_R1_OWN;  in lance_rx()
636 		lp->rx_new = (entry + 1) & RX_RING_MOD_MASK;  in lance_rx()
643 	struct lance_private *lp = netdev_priv(dev);  in lance_tx()  local
645 	volatile struct lance_regs *ll = lp->ll;  in lance_tx()
650 	j = lp->tx_old;  in lance_tx()
652 	spin_lock(&lp->lock);  in lance_tx()
654 	for (i = j; i != lp->tx_new; i = j) {  in lance_tx()
655 		td = lib_ptr(ib, btx_ring[i], lp->type);  in lance_tx()
657 		if (*tds_ptr(td, tmd1, lp->type) & LE_T1_OWN)  in lance_tx()
660 		if (*tds_ptr(td, tmd1, lp->type) & LE_T1_ERR) {  in lance_tx()
661 			status = *tds_ptr(td, misc, lp->type);  in lance_tx()
676 				load_csrs(lp);  in lance_tx()
677 				init_restart_lance(lp);  in lance_tx()
692 				load_csrs(lp);  in lance_tx()
693 				init_restart_lance(lp);  in lance_tx()
696 		} else if ((*tds_ptr(td, tmd1, lp->type) & LE_T1_POK) ==  in lance_tx()
701 			*tds_ptr(td, tmd1, lp->type) &= ~(LE_T1_POK);  in lance_tx()
704 			if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EONE)  in lance_tx()
708 			if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EMORE)  in lance_tx()
715 	lp->tx_old = j;  in lance_tx()
721 	spin_unlock(&lp->lock);  in lance_tx()
735 	struct lance_private *lp = netdev_priv(dev);  in lance_interrupt()  local
736 	volatile struct lance_regs *ll = lp->ll;  in lance_interrupt()
768 		load_csrs(lp);  in lance_interrupt()
769 		init_restart_lance(lp);  in lance_interrupt()
781 	struct lance_private *lp = netdev_priv(dev);  in lance_open()  local
782 	volatile struct lance_regs *ll = lp->ll;  in lance_open()
795 	*lib_ptr(ib, mode, lp->type) = 0;  in lance_open()
796 	*lib_ptr(ib, filter[0], lp->type) = 0;  in lance_open()
797 	*lib_ptr(ib, filter[1], lp->type) = 0;  in lance_open()
798 	*lib_ptr(ib, filter[2], lp->type) = 0;  in lance_open()
799 	*lib_ptr(ib, filter[3], lp->type) = 0;  in lance_open()
802 	load_csrs(lp);  in lance_open()
811 	if (lp->dma_irq >= 0) {  in lance_open()
814 		if (request_irq(lp->dma_irq, lance_dma_merr_int, IRQF_ONESHOT,  in lance_open()
818 				lp->dma_irq);  in lance_open()
833 	status = init_restart_lance(lp);  in lance_open()
839 	struct lance_private *lp = netdev_priv(dev);  in lance_close()  local
840 	volatile struct lance_regs *ll = lp->ll;  in lance_close()
843 	del_timer_sync(&lp->multicast_timer);  in lance_close()
849 	if (lp->dma_irq >= 0) {  in lance_close()
862 		free_irq(lp->dma_irq, dev);  in lance_close()
870 	struct lance_private *lp = netdev_priv(dev);  in lance_reset()  local
871 	volatile struct lance_regs *ll = lp->ll;  in lance_reset()
879 	load_csrs(lp);  in lance_reset()
881 	status = init_restart_lance(lp);  in lance_reset()
887 	struct lance_private *lp = netdev_priv(dev);  in lance_tx_timeout()  local
888 	volatile struct lance_regs *ll = lp->ll;  in lance_tx_timeout()
898 	struct lance_private *lp = netdev_priv(dev);  in lance_start_xmit()  local
899 	volatile struct lance_regs *ll = lp->ll;  in lance_start_xmit()
914 	spin_lock_irqsave(&lp->lock, flags);  in lance_start_xmit()
916 	entry = lp->tx_new;  in lance_start_xmit()
917 	*lib_ptr(ib, btx_ring[entry].length, lp->type) = (-len);  in lance_start_xmit()
918 	*lib_ptr(ib, btx_ring[entry].misc, lp->type) = 0;  in lance_start_xmit()
920 	cp_to_buf(lp->type, lp->tx_buf_ptr_cpu[entry], skb->data, len);  in lance_start_xmit()
923 	*lib_ptr(ib, btx_ring[entry].tmd1, lp->type) =  in lance_start_xmit()
924 		((lp->tx_buf_ptr_lnc[entry] >> 16) & 0xff) |  in lance_start_xmit()
926 	lp->tx_new = (entry + 1) & TX_RING_MOD_MASK;  in lance_start_xmit()
934 	spin_unlock_irqrestore(&lp->lock, flags);  in lance_start_xmit()
943 	struct lance_private *lp = netdev_priv(dev);  in lance_load_multicast()  local
950 		*lib_ptr(ib, filter[0], lp->type) = 0xffff;  in lance_load_multicast()
951 		*lib_ptr(ib, filter[1], lp->type) = 0xffff;  in lance_load_multicast()
952 		*lib_ptr(ib, filter[2], lp->type) = 0xffff;  in lance_load_multicast()
953 		*lib_ptr(ib, filter[3], lp->type) = 0xffff;  in lance_load_multicast()
957 	*lib_ptr(ib, filter[0], lp->type) = 0;  in lance_load_multicast()
958 	*lib_ptr(ib, filter[1], lp->type) = 0;  in lance_load_multicast()
959 	*lib_ptr(ib, filter[2], lp->type) = 0;  in lance_load_multicast()
960 	*lib_ptr(ib, filter[3], lp->type) = 0;  in lance_load_multicast()
966 		*lib_ptr(ib, filter[crc >> 4], lp->type) |= 1 << (crc & 0xf);  in lance_load_multicast()
972 	struct lance_private *lp = netdev_priv(dev);  in lance_set_multicast()  local
974 	volatile struct lance_regs *ll = lp->ll;  in lance_set_multicast()
979 	if (lp->tx_old != lp->tx_new) {  in lance_set_multicast()
980 		mod_timer(&lp->multicast_timer, jiffies + 4 * HZ/100);  in lance_set_multicast()
993 		*lib_ptr(ib, mode, lp->type) |= LE_MO_PROM;  in lance_set_multicast()
995 		*lib_ptr(ib, mode, lp->type) &= ~LE_MO_PROM;  in lance_set_multicast()
998 	load_csrs(lp);  in lance_set_multicast()
999 	init_restart_lance(lp);  in lance_set_multicast()
1027 	struct lance_private *lp;  in dec_lance_probe()  local
1044 			lp = netdev_priv(dev);  in dec_lance_probe()
1045 			dev = lp->next;  in dec_lance_probe()
1060 	lp = netdev_priv(dev);  in dec_lance_probe()
1061 	spin_lock_init(&lp->lock);  in dec_lance_probe()
1063 	lp->type = type;  in dec_lance_probe()
1085 			lp->rx_buf_ptr_cpu[i] =  in dec_lance_probe()
1088 			lp->rx_buf_ptr_lnc[i] =  in dec_lance_probe()
1092 			lp->tx_buf_ptr_cpu[i] =  in dec_lance_probe()
1096 			lp->tx_buf_ptr_lnc[i] =  in dec_lance_probe()
1103 		lp->dma_irq = dec_interrupt[DEC_IRQ_LANCE_MERR];  in dec_lance_probe()
1127 		lp->dma_irq = -1;  in dec_lance_probe()
1130 			lp->rx_buf_ptr_cpu[i] =  in dec_lance_probe()
1133 			lp->rx_buf_ptr_lnc[i] =  in dec_lance_probe()
1137 			lp->tx_buf_ptr_cpu[i] =  in dec_lance_probe()
1141 			lp->tx_buf_ptr_lnc[i] =  in dec_lance_probe()
1155 		lp->dma_irq = -1;  in dec_lance_probe()
1161 			lp->rx_buf_ptr_cpu[i] =  in dec_lance_probe()
1164 			lp->rx_buf_ptr_lnc[i] =  in dec_lance_probe()
1168 			lp->tx_buf_ptr_cpu[i] =  in dec_lance_probe()
1172 			lp->tx_buf_ptr_lnc[i] =  in dec_lance_probe()
1236 	lp->ll = ll;  in dec_lance_probe()
1241 	lp->busmaster_regval = 0;  in dec_lance_probe()
1250 	init_timer(&lp->multicast_timer);  in dec_lance_probe()
1251 	lp->multicast_timer.data = (unsigned long) dev;  in dec_lance_probe()
1252 	lp->multicast_timer.function = lance_set_multicast_retry;  in dec_lance_probe()
1262 		lp->next = root_lance_dev;  in dec_lance_probe()
1314 		struct lance_private *lp = netdev_priv(dev);  in dec_lance_platform_remove()  local
1317 		root_lance_dev = lp->next;  in dec_lance_platform_remove()