322 static void free_rxtx_rings(struct netdev_private *np);
326 static void free_ringdesc(struct netdev_private *np);
353 	struct netdev_private *np;  in w840_probe1()  local
373 	dev = alloc_etherdev(sizeof(*np));  in w840_probe1()
393 	np = netdev_priv(dev);  in w840_probe1()
394 	np->pci_dev = pdev;  in w840_probe1()
395 	np->chip_id = chip_idx;  in w840_probe1()
396 	np->drv_flags = pci_id_tbl[chip_idx].drv_flags;  in w840_probe1()
397 	spin_lock_init(&np->lock);  in w840_probe1()
398 	np->mii_if.dev = dev;  in w840_probe1()
399 	np->mii_if.mdio_read = mdio_read;  in w840_probe1()
400 	np->mii_if.mdio_write = mdio_write;  in w840_probe1()
401 	np->base_addr = ioaddr;  in w840_probe1()
411 			np->mii_if.full_duplex = 1;  in w840_probe1()
418 		np->mii_if.full_duplex = 1;  in w840_probe1()
420 	if (np->mii_if.full_duplex)  in w840_probe1()
421 		np->mii_if.force_media = 1;  in w840_probe1()
435 	if (np->drv_flags & CanHaveMII) {  in w840_probe1()
440 				np->phys[phy_idx++] = phy;  in w840_probe1()
441 				np->mii_if.advertising = mdio_read(dev, phy, MII_ADVERTISE);  in w840_probe1()
442 				np->mii = (mdio_read(dev, phy, MII_PHYSID1) << 16)+  in w840_probe1()
446 					 np->mii, phy, mii_status,  in w840_probe1()
447 					 np->mii_if.advertising);  in w840_probe1()
450 		np->mii_cnt = phy_idx;  in w840_probe1()
451 		np->mii_if.phy_id = np->phys[0];  in w840_probe1()
556 	struct netdev_private *np = netdev_priv(dev);  in mdio_read()  local
557 	void __iomem *mdio_addr = np->base_addr + MIICtrl;  in mdio_read()
586 	struct netdev_private *np = netdev_priv(dev);  in mdio_write()  local
587 	void __iomem *mdio_addr = np->base_addr + MIICtrl;  in mdio_write()
591 	if (location == 4  &&  phy_id == np->phys[0])  in mdio_write()
592 		np->mii_if.advertising = value;  in mdio_write()
618 	struct netdev_private *np = netdev_priv(dev);  in netdev_open()  local
619 	void __iomem *ioaddr = np->base_addr;  in netdev_open()
620 	const int irq = np->pci_dev->irq;  in netdev_open()
637 	spin_lock_irq(&np->lock);  in netdev_open()
640 	spin_unlock_irq(&np->lock);  in netdev_open()
647 	timer_setup(&np->timer, netdev_timer, 0);  in netdev_open()
648 	np->timer.expires = jiffies + 1*HZ;  in netdev_open()
649 	add_timer(&np->timer);  in netdev_open()
660 	struct netdev_private *np = netdev_priv(dev);  in update_link()  local
664 	mii_reg = mdio_read(dev, np->phys[0], MII_BMSR);  in update_link()
667 		return np->csr6;  in update_link()
669 	mii_reg = mdio_read(dev, np->phys[0], MII_BMSR);  in update_link()
675 					 np->phys[0]);  in update_link()
678 		return np->csr6;  in update_link()
684 				 np->phys[0]);  in update_link()
688 	if ((np->mii & ~0xf) == MII_DAVICOM_DM9101) {  in update_link()
697 		mii_reg = mdio_read(dev, np->phys[0], MII_BMCR);  in update_link()
702 		mii_reg	= mdio_read(dev, np->phys[0], MII_LPA);  in update_link()
703 		negotiated = mii_reg & np->mii_if.advertising;  in update_link()
708 	duplex |= np->mii_if.force_media;  in update_link()
710 	result = np->csr6 & ~0x20000200;  in update_link()
715 	if (result != np->csr6 && debug)  in update_link()
719 			 np->phys[0]);  in update_link()
726 	struct netdev_private *np = netdev_priv(dev);  in update_csr6()  local
727 	void __iomem *ioaddr = np->base_addr;  in update_csr6()
732 	if (new==np->csr6)  in update_csr6()
735 	iowrite32(np->csr6 & ~0x2002, ioaddr + NetworkConfig);  in update_csr6()
757 	np->csr6 = new;  in update_csr6()
759 	iowrite32(np->csr6, ioaddr + NetworkConfig);  in update_csr6()
761 		np->mii_if.full_duplex = 1;  in update_csr6()
766 	struct netdev_private *np = from_timer(np, t, timer);  in netdev_timer()  local
767 	struct net_device *dev = pci_get_drvdata(np->pci_dev);  in netdev_timer()
768 	void __iomem *ioaddr = np->base_addr;  in netdev_timer()
774 	spin_lock_irq(&np->lock);  in netdev_timer()
776 	spin_unlock_irq(&np->lock);  in netdev_timer()
777 	np->timer.expires = jiffies + 10*HZ;  in netdev_timer()
778 	add_timer(&np->timer);  in netdev_timer()
783 	struct netdev_private *np = netdev_priv(dev);  in init_rxtx_rings()  local
786 	np->rx_head_desc = &np->rx_ring[0];  in init_rxtx_rings()
787 	np->tx_ring = (struct w840_tx_desc*)&np->rx_ring[RX_RING_SIZE];  in init_rxtx_rings()
791 		np->rx_ring[i].length = np->rx_buf_sz;  in init_rxtx_rings()
792 		np->rx_ring[i].status = 0;  in init_rxtx_rings()
793 		np->rx_skbuff[i] = NULL;  in init_rxtx_rings()
796 	np->rx_ring[i-1].length |= DescEndRing;  in init_rxtx_rings()
800 		struct sk_buff *skb = netdev_alloc_skb(dev, np->rx_buf_sz);  in init_rxtx_rings()
801 		np->rx_skbuff[i] = skb;  in init_rxtx_rings()
804 		np->rx_addr[i] = dma_map_single(&np->pci_dev->dev, skb->data,  in init_rxtx_rings()
805 						np->rx_buf_sz,  in init_rxtx_rings()
808 		np->rx_ring[i].buffer1 = np->rx_addr[i];  in init_rxtx_rings()
809 		np->rx_ring[i].status = DescOwned;  in init_rxtx_rings()
812 	np->cur_rx = 0;  in init_rxtx_rings()
813 	np->dirty_rx = (unsigned int)(i - RX_RING_SIZE);  in init_rxtx_rings()
817 		np->tx_skbuff[i] = NULL;  in init_rxtx_rings()
818 		np->tx_ring[i].status = 0;  in init_rxtx_rings()
820 	np->tx_full = 0;  in init_rxtx_rings()
821 	np->tx_q_bytes = np->dirty_tx = np->cur_tx = 0;  in init_rxtx_rings()
823 	iowrite32(np->ring_dma_addr, np->base_addr + RxRingPtr);  in init_rxtx_rings()
824 	iowrite32(np->ring_dma_addr+sizeof(struct w840_rx_desc)*RX_RING_SIZE,  in init_rxtx_rings()
825 		np->base_addr + TxRingPtr);  in init_rxtx_rings()
829 static void free_rxtx_rings(struct netdev_private* np)  in free_rxtx_rings()  argument
834 		np->rx_ring[i].status = 0;  in free_rxtx_rings()
835 		if (np->rx_skbuff[i]) {  in free_rxtx_rings()
836 			dma_unmap_single(&np->pci_dev->dev, np->rx_addr[i],  in free_rxtx_rings()
837 					 np->rx_skbuff[i]->len,  in free_rxtx_rings()
839 			dev_kfree_skb(np->rx_skbuff[i]);  in free_rxtx_rings()
841 		np->rx_skbuff[i] = NULL;  in free_rxtx_rings()
844 		if (np->tx_skbuff[i]) {  in free_rxtx_rings()
845 			dma_unmap_single(&np->pci_dev->dev, np->tx_addr[i],  in free_rxtx_rings()
846 					 np->tx_skbuff[i]->len, DMA_TO_DEVICE);  in free_rxtx_rings()
847 			dev_kfree_skb(np->tx_skbuff[i]);  in free_rxtx_rings()
849 		np->tx_skbuff[i] = NULL;  in free_rxtx_rings()
855 	struct netdev_private *np = netdev_priv(dev);  in init_registers()  local
856 	void __iomem *ioaddr = np->base_addr;  in init_registers()
899 	np->csr6 = 0;  in init_registers()
913 	struct netdev_private *np = netdev_priv(dev);  in tx_timeout()  local
914 	void __iomem *ioaddr = np->base_addr;  in tx_timeout()
915 	const int irq = np->pci_dev->irq;  in tx_timeout()
922 		printk(KERN_DEBUG "  Rx ring %p: ", np->rx_ring);  in tx_timeout()
924 			printk(KERN_CONT " %08x", (unsigned int)np->rx_ring[i].status);  in tx_timeout()
926 		printk(KERN_DEBUG "  Tx ring %p: ", np->tx_ring);  in tx_timeout()
928 			printk(KERN_CONT " %08x", np->tx_ring[i].status);  in tx_timeout()
932 	       np->cur_tx, np->dirty_tx, np->tx_full, np->tx_q_bytes);  in tx_timeout()
936 	spin_lock_irq(&np->lock);  in tx_timeout()
943 	iowrite32(1, np->base_addr+PCIBusCfg);  in tx_timeout()
946 	free_rxtx_rings(np);  in tx_timeout()
949 	spin_unlock_irq(&np->lock);  in tx_timeout()
954 	np->stats.tx_errors++;  in tx_timeout()
960 	struct netdev_private *np = netdev_priv(dev);  in alloc_ringdesc()  local
962 	np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);  in alloc_ringdesc()
964 	np->rx_ring = dma_alloc_coherent(&np->pci_dev->dev,  in alloc_ringdesc()
967 					 &np->ring_dma_addr, GFP_KERNEL);  in alloc_ringdesc()
968 	if(!np->rx_ring)  in alloc_ringdesc()
974 static void free_ringdesc(struct netdev_private *np)  in free_ringdesc()  argument
976 	dma_free_coherent(&np->pci_dev->dev,  in free_ringdesc()
979 			  np->rx_ring, np->ring_dma_addr);  in free_ringdesc()
985 	struct netdev_private *np = netdev_priv(dev);  in start_tx()  local
992 	entry = np->cur_tx % TX_RING_SIZE;  in start_tx()
994 	np->tx_addr[entry] = dma_map_single(&np->pci_dev->dev, skb->data,  in start_tx()
996 	np->tx_skbuff[entry] = skb;  in start_tx()
998 	np->tx_ring[entry].buffer1 = np->tx_addr[entry];  in start_tx()
1000 		np->tx_ring[entry].length = DescWholePkt | skb->len;  in start_tx()
1004 		np->tx_ring[entry].buffer2 = np->tx_addr[entry]+TX_BUFLIMIT;  in start_tx()
1005 		np->tx_ring[entry].length = DescWholePkt | (len << 11) | TX_BUFLIMIT;  in start_tx()
1008 		np->tx_ring[entry].length |= DescEndRing;  in start_tx()
1020 	spin_lock_irq(&np->lock);  in start_tx()
1021 	np->cur_tx++;  in start_tx()
1024 	np->tx_ring[entry].status = DescOwned;  in start_tx()
1026 	iowrite32(0, np->base_addr + TxStartDemand);  in start_tx()
1027 	np->tx_q_bytes += skb->len;  in start_tx()
1030 	if (np->cur_tx - np->dirty_tx > TX_QUEUE_LEN ||  in start_tx()
1031 		((np->drv_flags & HasBrokenTx) && np->tx_q_bytes > TX_BUG_FIFO_LIMIT)) {  in start_tx()
1034 		np->tx_full = 1;  in start_tx()
1036 	spin_unlock_irq(&np->lock);  in start_tx()
1040 			   np->cur_tx, entry);  in start_tx()
1047 	struct netdev_private *np = netdev_priv(dev);  in netdev_tx_done()  local
1048 	for (; np->cur_tx - np->dirty_tx > 0; np->dirty_tx++) {  in netdev_tx_done()
1049 		int entry = np->dirty_tx % TX_RING_SIZE;  in netdev_tx_done()
1050 		int tx_status = np->tx_ring[entry].status;  in netdev_tx_done()
1060 			np->stats.tx_errors++;  in netdev_tx_done()
1061 			if (tx_status & 0x0104) np->stats.tx_aborted_errors++;  in netdev_tx_done()
1062 			if (tx_status & 0x0C80) np->stats.tx_carrier_errors++;  in netdev_tx_done()
1063 			if (tx_status & 0x0200) np->stats.tx_window_errors++;  in netdev_tx_done()
1064 			if (tx_status & 0x0002) np->stats.tx_fifo_errors++;  in netdev_tx_done()
1065 			if ((tx_status & 0x0080) && np->mii_if.full_duplex == 0)  in netdev_tx_done()
1066 				np->stats.tx_heartbeat_errors++;  in netdev_tx_done()
1073 			np->stats.tx_bytes += np->tx_skbuff[entry]->len;  in netdev_tx_done()
1074 			np->stats.collisions += (tx_status >> 3) & 15;  in netdev_tx_done()
1075 			np->stats.tx_packets++;  in netdev_tx_done()
1078 		dma_unmap_single(&np->pci_dev->dev, np->tx_addr[entry],  in netdev_tx_done()
1079 				 np->tx_skbuff[entry]->len, DMA_TO_DEVICE);  in netdev_tx_done()
1080 		np->tx_q_bytes -= np->tx_skbuff[entry]->len;  in netdev_tx_done()
1081 		dev_kfree_skb_irq(np->tx_skbuff[entry]);  in netdev_tx_done()
1082 		np->tx_skbuff[entry] = NULL;  in netdev_tx_done()
1084 	if (np->tx_full &&  in netdev_tx_done()
1085 		np->cur_tx - np->dirty_tx < TX_QUEUE_LEN_RESTART &&  in netdev_tx_done()
1086 		np->tx_q_bytes < TX_BUG_FIFO_LIMIT) {  in netdev_tx_done()
1088 		np->tx_full = 0;  in netdev_tx_done()
1099 	struct netdev_private *np = netdev_priv(dev);  in intr_handler()  local
1100 	void __iomem *ioaddr = np->base_addr;  in intr_handler()
1126 			np->cur_tx != np->dirty_tx) {  in intr_handler()
1127 			spin_lock(&np->lock);  in intr_handler()
1129 			spin_unlock(&np->lock);  in intr_handler()
1143 			spin_lock(&np->lock);  in intr_handler()
1148 			spin_unlock(&np->lock);  in intr_handler()
1163 	struct netdev_private *np = netdev_priv(dev);  in netdev_rx()  local
1164 	int entry = np->cur_rx % RX_RING_SIZE;  in netdev_rx()
1165 	int work_limit = np->dirty_rx + RX_RING_SIZE - np->cur_rx;  in netdev_rx()
1169 			   entry, np->rx_ring[entry].status);  in netdev_rx()
1174 		struct w840_rx_desc *desc = np->rx_head_desc;  in netdev_rx()
1188 						 np->cur_rx, status);  in netdev_rx()
1189 					np->stats.rx_length_errors++;  in netdev_rx()
1196 				np->stats.rx_errors++; /* end of a packet.*/  in netdev_rx()
1197 				if (status & 0x0890) np->stats.rx_length_errors++;  in netdev_rx()
1198 				if (status & 0x004C) np->stats.rx_frame_errors++;  in netdev_rx()
1199 				if (status & 0x0002) np->stats.rx_crc_errors++;  in netdev_rx()
1216 				dma_sync_single_for_cpu(&np->pci_dev->dev,  in netdev_rx()
1217 							np->rx_addr[entry],  in netdev_rx()
1218 							np->rx_skbuff[entry]->len,  in netdev_rx()
1220 				skb_copy_to_linear_data(skb, np->rx_skbuff[entry]->data, pkt_len);  in netdev_rx()
1222 				dma_sync_single_for_device(&np->pci_dev->dev,  in netdev_rx()
1223 							   np->rx_addr[entry],  in netdev_rx()
1224 							   np->rx_skbuff[entry]->len,  in netdev_rx()
1227 				dma_unmap_single(&np->pci_dev->dev,  in netdev_rx()
1228 						 np->rx_addr[entry],  in netdev_rx()
1229 						 np->rx_skbuff[entry]->len,  in netdev_rx()
1231 				skb_put(skb = np->rx_skbuff[entry], pkt_len);  in netdev_rx()
1232 				np->rx_skbuff[entry] = NULL;  in netdev_rx()
1244 			np->stats.rx_packets++;  in netdev_rx()
1245 			np->stats.rx_bytes += pkt_len;  in netdev_rx()
1247 		entry = (++np->cur_rx) % RX_RING_SIZE;  in netdev_rx()
1248 		np->rx_head_desc = &np->rx_ring[entry];  in netdev_rx()
1252 	for (; np->cur_rx - np->dirty_rx > 0; np->dirty_rx++) {  in netdev_rx()
1254 		entry = np->dirty_rx % RX_RING_SIZE;  in netdev_rx()
1255 		if (np->rx_skbuff[entry] == NULL) {  in netdev_rx()
1256 			skb = netdev_alloc_skb(dev, np->rx_buf_sz);  in netdev_rx()
1257 			np->rx_skbuff[entry] = skb;  in netdev_rx()
1260 			np->rx_addr[entry] = dma_map_single(&np->pci_dev->dev,  in netdev_rx()
1262 							    np->rx_buf_sz,  in netdev_rx()
1264 			np->rx_ring[entry].buffer1 = np->rx_addr[entry];  in netdev_rx()
1267 		np->rx_ring[entry].status = DescOwned;  in netdev_rx()
1275 	struct netdev_private *np = netdev_priv(dev);  in netdev_error()  local
1276 	void __iomem *ioaddr = np->base_addr;  in netdev_error()
1282 	spin_lock(&np->lock);  in netdev_error()
1290 		new = np->csr6 + 0x4000;  in netdev_error()
1292 		new = (np->csr6 >> 14)&0x7f;  in netdev_error()
1297 		new = (np->csr6 & ~(0x7F << 14)) | (new<<14);  in netdev_error()
1303 		np->stats.rx_errors++;  in netdev_error()
1310 	np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;  in netdev_error()
1312 	spin_unlock(&np->lock);  in netdev_error()
1317 	struct netdev_private *np = netdev_priv(dev);  in get_stats()  local
1318 	void __iomem *ioaddr = np->base_addr;  in get_stats()
1321 	spin_lock_irq(&np->lock);  in get_stats()
1323 		np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;  in get_stats()
1324 	spin_unlock_irq(&np->lock);  in get_stats()
1326 	return &np->stats;  in get_stats()
1332 	struct netdev_private *np = netdev_priv(dev);  in __set_rx_mode()  local
1333 	void __iomem *ioaddr = np->base_addr;  in __set_rx_mode()
1366 	struct netdev_private *np = netdev_priv(dev);  in set_rx_mode()  local
1368 	spin_lock_irq(&np->lock);  in set_rx_mode()
1369 	update_csr6(dev, (np->csr6 & ~0x00F8) | rx_mode);  in set_rx_mode()
1370 	spin_unlock_irq(&np->lock);  in set_rx_mode()
1375 	struct netdev_private *np = netdev_priv(dev);  in netdev_get_drvinfo()  local
1378 	strscpy(info->bus_info, pci_name(np->pci_dev), sizeof(info->bus_info));  in netdev_get_drvinfo()
1384 	struct netdev_private *np = netdev_priv(dev);  in netdev_get_link_ksettings()  local
1386 	spin_lock_irq(&np->lock);  in netdev_get_link_ksettings()
1387 	mii_ethtool_get_link_ksettings(&np->mii_if, cmd);  in netdev_get_link_ksettings()
1388 	spin_unlock_irq(&np->lock);  in netdev_get_link_ksettings()
1396 	struct netdev_private *np = netdev_priv(dev);  in netdev_set_link_ksettings()  local
1399 	spin_lock_irq(&np->lock);  in netdev_set_link_ksettings()
1400 	rc = mii_ethtool_set_link_ksettings(&np->mii_if, cmd);  in netdev_set_link_ksettings()
1401 	spin_unlock_irq(&np->lock);  in netdev_set_link_ksettings()
1408 	struct netdev_private *np = netdev_priv(dev);  in netdev_nway_reset()  local
1409 	return mii_nway_restart(&np->mii_if);  in netdev_nway_reset()
1414 	struct netdev_private *np = netdev_priv(dev);  in netdev_get_link()  local
1415 	return mii_link_ok(&np->mii_if);  in netdev_get_link()
1441 	struct netdev_private *np = netdev_priv(dev);  in netdev_ioctl()  local
1449 		spin_lock_irq(&np->lock);  in netdev_ioctl()
1451 		spin_unlock_irq(&np->lock);  in netdev_ioctl()
1455 		spin_lock_irq(&np->lock);  in netdev_ioctl()
1457 		spin_unlock_irq(&np->lock);  in netdev_ioctl()
1466 	struct netdev_private *np = netdev_priv(dev);  in netdev_close()  local
1467 	void __iomem *ioaddr = np->base_addr;  in netdev_close()
1476 			   np->cur_tx, np->dirty_tx,  in netdev_close()
1477 			   np->cur_rx, np->dirty_rx);  in netdev_close()
1481 	spin_lock_irq(&np->lock);  in netdev_close()
1485 	spin_unlock_irq(&np->lock);  in netdev_close()
1487 	free_irq(np->pci_dev->irq, dev);  in netdev_close()
1492 		np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;  in netdev_close()
1498 		printk(KERN_DEBUG"  Tx ring at %p:\n", np->tx_ring);  in netdev_close()
1501 			       i, np->tx_ring[i].length,  in netdev_close()
1502 			       np->tx_ring[i].status, np->tx_ring[i].buffer1);  in netdev_close()
1503 		printk(KERN_DEBUG "  Rx ring %p:\n", np->rx_ring);  in netdev_close()
1506 			       i, np->rx_ring[i].length,  in netdev_close()
1507 			       np->rx_ring[i].status, np->rx_ring[i].buffer1);  in netdev_close()
1512 	del_timer_sync(&np->timer);  in netdev_close()
1514 	free_rxtx_rings(np);  in netdev_close()
1515 	free_ringdesc(np);  in netdev_close()
1525 		struct netdev_private *np = netdev_priv(dev);  in w840_remove1()  local
1527 		pci_iounmap(pdev, np->base_addr);  in w840_remove1()
1558 	struct netdev_private *np = netdev_priv(dev);  in w840_suspend()  local
1559 	void __iomem *ioaddr = np->base_addr;  in w840_suspend()
1563 		del_timer_sync(&np->timer);  in w840_suspend()
1565 		spin_lock_irq(&np->lock);  in w840_suspend()
1569 		spin_unlock_irq(&np->lock);  in w840_suspend()
1571 		synchronize_irq(np->pci_dev->irq);  in w840_suspend()
1574 		np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;  in w840_suspend()
1578 		BUG_ON(np->csr6 || ioread32(ioaddr + IntrEnable));  in w840_suspend()
1582 		free_rxtx_rings(np);  in w840_suspend()
1593 	struct netdev_private *np = netdev_priv(dev);  in w840_resume()  local
1599 		spin_lock_irq(&np->lock);  in w840_resume()
1600 		iowrite32(1, np->base_addr+PCIBusCfg);  in w840_resume()
1601 		ioread32(np->base_addr+PCIBusCfg);  in w840_resume()
1606 		spin_unlock_irq(&np->lock);  in w840_resume()
1610 		mod_timer(&np->timer, jiffies + 1*HZ);  in w840_resume()