85 static inline int qe_stop(struct sunqe *qep)  in qe_stop()  argument
87 	void __iomem *cregs = qep->qcregs;  in qe_stop()
88 	void __iomem *mregs = qep->mregs;  in qe_stop()
124 static void qe_init_rings(struct sunqe *qep)  in qe_init_rings()  argument
126 	struct qe_init_block *qb = qep->qe_block;  in qe_init_rings()
127 	struct sunqe_buffers *qbufs = qep->buffers;  in qe_init_rings()
128 	__u32 qbufs_dvma = (__u32)qep->buffers_dvma;  in qe_init_rings()
131 	qep->rx_new = qep->rx_old = qep->tx_new = qep->tx_old = 0;  in qe_init_rings()
141 static int qe_init(struct sunqe *qep, int from_irq)  in qe_init()  argument
143 	struct sunqec *qecp = qep->parent;  in qe_init()
144 	void __iomem *cregs = qep->qcregs;  in qe_init()
145 	void __iomem *mregs = qep->mregs;  in qe_init()
147 	const unsigned char *e = &qep->dev->dev_addr[0];  in qe_init()
148 	__u32 qblk_dvma = (__u32)qep->qblock_dvma;  in qe_init()
153 	if (qe_stop(qep))  in qe_init()
168 	tmp = qep->channel * sbus_readl(gregs + GLOB_MSIZE);  in qe_init()
224 	qe_init_rings(qep);  in qe_init()
241 			printk(KERN_NOTICE "%s: Warning, link state is down.\n", qep->dev->name);  in qe_init()
250 	qe_set_multicast(qep->dev);  in qe_init()
259 static int qe_is_bolixed(struct sunqe *qep, u32 qe_status)  in qe_is_bolixed()  argument
261 	struct net_device *dev = qep->dev;  in qe_is_bolixed()
405 		qe_init(qep, 1);  in qe_is_bolixed()
412 static void qe_rx(struct sunqe *qep)  in qe_rx()  argument
414 	struct qe_rxd *rxbase = &qep->qe_block->qe_rxd[0];  in qe_rx()
415 	struct net_device *dev = qep->dev;  in qe_rx()
417 	struct sunqe_buffers *qbufs = qep->buffers;  in qe_rx()
418 	__u32 qbufs_dvma = (__u32)qep->buffers_dvma;  in qe_rx()
419 	int elem = qep->rx_new;  in qe_rx()
447 				skb->protocol = eth_type_trans(skb, qep->dev);  in qe_rx()
459 	qep->rx_new = elem;  in qe_rx()
462 static void qe_tx_reclaim(struct sunqe *qep);
478 			struct sunqe *qep = qecp->qes[channel];  in qec_interrupt()  local
481 			qe_status = sbus_readl(qep->qcregs + CREG_STAT);  in qec_interrupt()
483 				if (qe_is_bolixed(qep, qe_status))  in qec_interrupt()
487 				qe_rx(qep);  in qec_interrupt()
488 			if (netif_queue_stopped(qep->dev) &&  in qec_interrupt()
490 				spin_lock(&qep->lock);  in qec_interrupt()
491 				qe_tx_reclaim(qep);  in qec_interrupt()
492 				if (TX_BUFFS_AVAIL(qep) > 0) {  in qec_interrupt()
496 					netif_wake_queue(qep->dev);  in qec_interrupt()
497 					sbus_writel(1, qep->qcregs + CREG_TIMASK);  in qec_interrupt()
499 				spin_unlock(&qep->lock);  in qec_interrupt()
513 	struct sunqe *qep = netdev_priv(dev);  in qe_open()  local
515 	qep->mconfig = (MREGS_MCONFIG_TXENAB |  in qe_open()
518 	return qe_init(qep, 0);  in qe_open()
523 	struct sunqe *qep = netdev_priv(dev);  in qe_close()  local
525 	qe_stop(qep);  in qe_close()
532 static void qe_tx_reclaim(struct sunqe *qep)  in qe_tx_reclaim()  argument
534 	struct qe_txd *txbase = &qep->qe_block->qe_txd[0];  in qe_tx_reclaim()
535 	int elem = qep->tx_old;  in qe_tx_reclaim()
537 	while (elem != qep->tx_new) {  in qe_tx_reclaim()
544 	qep->tx_old = elem;  in qe_tx_reclaim()
549 	struct sunqe *qep = netdev_priv(dev);  in qe_tx_timeout()  local
552 	spin_lock_irq(&qep->lock);  in qe_tx_timeout()
557 	qe_tx_reclaim(qep);  in qe_tx_timeout()
558 	tx_full = TX_BUFFS_AVAIL(qep) <= 0;  in qe_tx_timeout()
560 	spin_unlock_irq(&qep->lock);  in qe_tx_timeout()
566 	qe_init(qep, 1);  in qe_tx_timeout()
575 	struct sunqe *qep = netdev_priv(dev);  in qe_start_xmit()  local
576 	struct sunqe_buffers *qbufs = qep->buffers;  in qe_start_xmit()
577 	__u32 txbuf_dvma, qbufs_dvma = (__u32)qep->buffers_dvma;  in qe_start_xmit()
581 	spin_lock_irq(&qep->lock);  in qe_start_xmit()
583 	qe_tx_reclaim(qep);  in qe_start_xmit()
586 	entry = qep->tx_new;  in qe_start_xmit()
593 	qep->qe_block->qe_txd[entry].tx_flags = TXD_UPDATE;  in qe_start_xmit()
597 	qep->qe_block->qe_txd[entry].tx_addr = txbuf_dvma;  in qe_start_xmit()
598 	qep->qe_block->qe_txd[entry].tx_flags =  in qe_start_xmit()
600 	qep->tx_new = NEXT_TX(entry);  in qe_start_xmit()
603 	sbus_writel(CREG_CTRL_TWAKEUP, qep->qcregs + CREG_CTRL);  in qe_start_xmit()
608 	if (TX_BUFFS_AVAIL(qep) <= 0) {  in qe_start_xmit()
615 		sbus_writel(0, qep->qcregs + CREG_TIMASK);  in qe_start_xmit()
617 	spin_unlock_irq(&qep->lock);  in qe_start_xmit()
626 	struct sunqe *qep = netdev_priv(dev);  in qe_set_multicast()  local
628 	u8 new_mconfig = qep->mconfig;  in qe_set_multicast()
637 			    qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
638 		while ((sbus_readb(qep->mregs + MREGS_IACONFIG) & MREGS_IACONFIG_ACHNGE) != 0)  in qe_set_multicast()
641 			sbus_writeb(0xff, qep->mregs + MREGS_FILTER);  in qe_set_multicast()
642 		sbus_writeb(0, qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
657 			    qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
658 		while ((sbus_readb(qep->mregs + MREGS_IACONFIG) & MREGS_IACONFIG_ACHNGE) != 0)  in qe_set_multicast()
662 			sbus_writeb(tmp, qep->mregs + MREGS_FILTER);  in qe_set_multicast()
664 		sbus_writeb(0, qep->mregs + MREGS_IACONFIG);  in qe_set_multicast()
673 	qep->mconfig = new_mconfig;  in qe_set_multicast()
674 	sbus_writeb(qep->mconfig, qep->mregs + MREGS_MCONFIG);  in qe_set_multicast()
684 	struct sunqe *qep = netdev_priv(dev);  in qe_get_drvinfo()  local
690 	op = qep->op;  in qe_get_drvinfo()
700 	struct sunqe *qep = netdev_priv(dev);  in qe_get_link()  local
701 	void __iomem *mregs = qep->mregs;  in qe_get_link()
704 	spin_lock_irq(&qep->lock);  in qe_get_link()
706 	spin_unlock_irq(&qep->lock);  in qe_get_link()