drivers/net/ethernet/toshiba/tc35815.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/toshiba/tc35815.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/toshiba/tc35815.c
Extension
.c
Size
64196 bytes
Lines
2161
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

static const struct net_device_ops tc35815_netdev_ops = {
	.ndo_open		= tc35815_open,
	.ndo_stop		= tc35815_close,
	.ndo_start_xmit		= tc35815_send_packet,
	.ndo_get_stats		= tc35815_get_stats,
	.ndo_set_rx_mode	= tc35815_set_multicast_list,
	.ndo_tx_timeout		= tc35815_tx_timeout,
	.ndo_eth_ioctl		= phy_do_ioctl_running,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_set_mac_address	= eth_mac_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
	.ndo_poll_controller	= tc35815_poll_controller,
#endif
};

static int tc35815_init_one(struct pci_dev *pdev,
			    const struct pci_device_id *ent)
{
	void __iomem *ioaddr = NULL;
	struct net_device *dev;
	struct tc35815_local *lp;
	int rc;

	static int printed_version;
	if (!printed_version++) {
		printk(version);
		dev_printk(KERN_DEBUG, &pdev->dev,
			   "speed:%d duplex:%d\n",
			   options.speed, options.duplex);
	}

	if (!pdev->irq) {
		dev_warn(&pdev->dev, "no IRQ assigned.\n");
		return -ENODEV;
	}

	/* dev zeroed in alloc_etherdev */
	dev = alloc_etherdev(sizeof(*lp));
	if (dev == NULL)
		return -ENOMEM;

	SET_NETDEV_DEV(dev, &pdev->dev);
	lp = netdev_priv(dev);
	lp->dev = dev;

	/* enable device (incl. PCI PM wakeup), and bus-mastering */
	rc = pcim_enable_device(pdev);
	if (rc)
		goto err_out;
	rc = pcim_iomap_regions(pdev, 1 << 1, MODNAME);
	if (rc)
		goto err_out;
	pci_set_master(pdev);
	ioaddr = pcim_iomap_table(pdev)[1];

	/* Initialize the device structure. */
	dev->netdev_ops = &tc35815_netdev_ops;
	dev->ethtool_ops = &tc35815_ethtool_ops;
	dev->watchdog_timeo = TC35815_TX_TIMEOUT;
	netif_napi_add_weight(dev, &lp->napi, tc35815_poll, NAPI_WEIGHT);

	dev->irq = pdev->irq;
	dev->base_addr = (unsigned long)ioaddr;

	INIT_WORK(&lp->restart_work, tc35815_restart_work);
	spin_lock_init(&lp->lock);
	spin_lock_init(&lp->rx_lock);
	lp->pci_dev = pdev;
	lp->chiptype = ent->driver_data;

	lp->msg_enable = NETIF_MSG_TX_ERR | NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK;
	pci_set_drvdata(pdev, dev);

	/* Soft reset the chip. */
	tc35815_chip_reset(dev);

	/* Retrieve the ethernet address. */
	if (tc35815_init_dev_addr(dev)) {
		dev_warn(&pdev->dev, "not valid ether addr\n");
		eth_hw_addr_random(dev);
	}

	rc = register_netdev(dev);
	if (rc)
		goto err_out;

	printk(KERN_INFO "%s: %s at 0x%lx, %pM, IRQ %d\n",
		dev->name,
		chip_info[ent->driver_data].name,
		dev->base_addr,

Annotation

Implementation Notes