84 static inline int qe_stop(struct sunqe *qep)  in qe_stop()  argument
86 	void __iomem *cregs = qep->qcregs;  in qe_stop()
87 	void __iomem *mregs = qep->mregs;  in qe_stop()
123 static void qe_init_rings(struct sunqe *qep)  in qe_init_rings()  argument
125 	struct qe_init_block *qb = qep->qe_block;  in qe_init_rings()
126 	struct sunqe_buffers *qbufs = qep->buffers;  in qe_init_rings()
127 	__u32 qbufs_dvma = qep->buffers_dvma;  in qe_init_rings()
130 	qep->rx_new = qep->rx_old = qep->tx_new = qep->tx_old = 0;  in qe_init_rings()
140 static int qe_init(struct sunqe *qep, int from_irq)  in qe_init()  argument
142 	struct sunqec *qecp = qep->parent;  in qe_init()
143 	void __iomem *cregs = qep->qcregs;  in qe_init()
144 	void __iomem *mregs = qep->mregs;  in qe_init()
146 	unsigned char *e = &qep->dev->dev_addr[0];  in qe_init()
151 	if (qe_stop(qep))  in qe_init()
155 	sbus_writel(qep->qblock_dvma + qib_offset(qe_rxd, 0), cregs + CREG_RXDS);  in qe_init()
156 	sbus_writel(qep->qblock_dvma + qib_offset(qe_txd, 0), cregs + CREG_TXDS);  in qe_init()
166 	tmp = qep->channel * sbus_readl(gregs + GLOB_MSIZE);  in qe_init()
222 	qe_init_rings(qep);  in qe_init()
239 			printk(KERN_NOTICE "%s: Warning, link state is down.\n", qep->dev->name);  in qe_init()
248 	qe_set_multicast(qep->dev);  in qe_init()
257 static int qe_is_bolixed(struct sunqe *qep, u32 qe_status)  in qe_is_bolixed()  argument
259 	struct net_device *dev = qep->dev;  in qe_is_bolixed()
403 		qe_init(qep, 1);  in qe_is_bolixed()
410 static void qe_rx(struct sunqe *qep)  in qe_rx()  argument
412 	struct qe_rxd *rxbase = &qep->qe_block->qe_rxd[0];  in qe_rx()
413 	struct net_device *dev = qep->dev;  in qe_rx()
415 	struct sunqe_buffers *qbufs = qep->buffers;  in qe_rx()
416 	__u32 qbufs_dvma = qep->buffers_dvma;  in qe_rx()
417 	int elem = qep->rx_new;  in qe_rx()
445 				skb->protocol = eth_type_trans(skb, qep->dev);  in qe_rx()
457 	qep->rx_new = elem;  in qe_rx()
460 static void qe_tx_reclaim(struct sunqe *qep);
476 			struct sunqe *qep = qecp->qes[channel];  in qec_interrupt()  local
479 			qe_status = sbus_readl(qep->qcregs + CREG_STAT);  in qec_interrupt()
481 				if (qe_is_bolixed(qep, qe_status))  in qec_interrupt()
485 				qe_rx(qep);  in qec_interrupt()
486 			if (netif_queue_stopped(qep->dev) &&  in qec_interrupt()
488 				spin_lock(&qep->lock);  in qec_interrupt()
489 				qe_tx_reclaim(qep);  in qec_interrupt()
490 				if (TX_BUFFS_AVAIL(qep) > 0) {  in qec_interrupt()
494 					netif_wake_queue(qep->dev);  in qec_interrupt()
495 					sbus_writel(1, qep->qcregs + CREG_TIMASK);  in qec_interrupt()
497 				spin_unlock(&qep->lock);  in qec_interrupt()
511 	struct sunqe *qep = netdev_priv(dev);  in qe_open()  local
513 	qep->mconfig = (MREGS_MCONFIG_TXENAB |  in qe_open()
516 	return qe_init(qep, 0);  in qe_open()
521 	struct sunqe *qep = netdev_priv(dev);  in qe_close()  local
523 	qe_stop(qep);  in qe_close()
530 static void qe_tx_reclaim(struct sunqe *qep)  in qe_tx_reclaim()  argument
532 	struct qe_txd *txbase = &qep->qe_block->qe_txd[0];  in qe_tx_reclaim()
533 	int elem = qep->tx_old;  in qe_tx_reclaim()
535 	while (elem != qep->tx_new) {  in qe_tx_reclaim()
542 	qep->tx_old = elem;  in qe_tx_reclaim()
547 	struct sunqe *qep = netdev_priv(dev);  in qe_tx_timeout()  local
550 	spin_lock_irq(&qep->lock);  in qe_tx_timeout()
555 	qe_tx_reclaim(qep);  in qe_tx_timeout()
556 	tx_full = TX_BUFFS_AVAIL(qep) <= 0;  in qe_tx_timeout()
558 	spin_unlock_irq(&qep->lock);  in qe_tx_timeout()
564 	qe_init(qep, 1);  in qe_tx_timeout()
573 	struct sunqe *qep = netdev_priv(dev);  in qe_start_xmit()  local
574 	struct sunqe_buffers *qbufs = qep->buffers;  in qe_start_xmit()
575 	__u32 txbuf_dvma, qbufs_dvma = qep->buffers_dvma;  in qe_start_xmit()
579 	spin_lock_irq(&qep->lock);  in qe_start_xmit()
581 	qe_tx_reclaim(qep);  in qe_start_xmit()
584 	entry = qep->tx_new;  in qe_start_xmit()
591 	qep->qe_block->qe_txd[entry].tx_flags = TXD_UPDATE;  in qe_start_xmit()
595 	qep->qe_block->qe_txd[entry].tx_addr = txbuf_dvma;  in qe_start_xmit()
596 	qep->qe_block->qe_txd[entry].tx_flags =  in qe_start_xmit()
598 	qep->tx_new = NEXT_TX(entry);  in qe_start_xmit()
601 	sbus_writel(CREG_CTRL_TWAKEUP, qep->qcregs + CREG_CTRL);  in qe_start_xmit()
606 	if (TX_BUFFS_AVAIL(qep) <= 0) {  in qe_start_xmit()
613 		sbus_writel(0, qep->qcregs + CREG_TIMASK);  in qe_start_xmit()
615 	spin_unlock_irq(&qep->lock);  in qe_start_xmit()
624 	struct sunqe *qep = netdev_priv(dev);  in qe_set_multicast()  local
626 	u8 new_mconfig = qep->mconfig;  in qe_set_multicast()
635 			    qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
636 		while ((sbus_readb(qep->mregs + MREGS_IACONFIG) & MREGS_IACONFIG_ACHNGE) != 0)  in qe_set_multicast()
639 			sbus_writeb(0xff, qep->mregs + MREGS_FILTER);  in qe_set_multicast()
640 		sbus_writeb(0, qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
655 			    qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
656 		while ((sbus_readb(qep->mregs + MREGS_IACONFIG) & MREGS_IACONFIG_ACHNGE) != 0)  in qe_set_multicast()
660 			sbus_writeb(tmp, qep->mregs + MREGS_FILTER);  in qe_set_multicast()
662 		sbus_writeb(0, qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
671 	qep->mconfig = new_mconfig;  in qe_set_multicast()
672 	sbus_writeb(qep->mconfig, qep->mregs + MREGS_MCONFIG);  in qe_set_multicast()
682 	struct sunqe *qep = netdev_priv(dev);  in qe_get_drvinfo()  local
688 	op = qep->op;  in qe_get_drvinfo()
698 	struct sunqe *qep = netdev_priv(dev);  in qe_get_link()  local
699 	void __iomem *mregs = qep->mregs;  in qe_get_link()
702 	spin_lock_irq(&qep->lock);  in qe_get_link()
704 	spin_unlock_irq(&qep->lock);  in qe_get_link()