drivers/net/ethernet/mscc/ocelot_net.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mscc/ocelot_net.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/mscc/ocelot_net.c
Extension
.c
Size
51507 bytes
Lines
1929
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 ocelot_port_netdev_ops = {
	.ndo_open			= ocelot_port_open,
	.ndo_stop			= ocelot_port_stop,
	.ndo_start_xmit			= ocelot_port_xmit,
	.ndo_change_mtu			= ocelot_change_mtu,
	.ndo_set_rx_mode		= ocelot_set_rx_mode,
	.ndo_set_mac_address		= ocelot_port_set_mac_address,
	.ndo_get_stats64		= ocelot_get_stats64,
	.ndo_fdb_add			= ocelot_port_fdb_add,
	.ndo_fdb_del			= ocelot_port_fdb_del,
	.ndo_fdb_dump			= ocelot_port_fdb_dump,
	.ndo_vlan_rx_add_vid		= ocelot_vlan_rx_add_vid,
	.ndo_vlan_rx_kill_vid		= ocelot_vlan_rx_kill_vid,
	.ndo_set_features		= ocelot_set_features,
	.ndo_setup_tc			= ocelot_setup_tc,
	.ndo_eth_ioctl			= ocelot_ioctl,
	.ndo_hwtstamp_get		= ocelot_port_hwtstamp_get,
	.ndo_hwtstamp_set		= ocelot_port_hwtstamp_set,
};

struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port)
{
	struct ocelot_port *ocelot_port = ocelot->ports[port];
	struct ocelot_port_private *priv;

	if (!ocelot_port)
		return NULL;

	priv = container_of(ocelot_port, struct ocelot_port_private, port);

	return priv->dev;
}

/* Checks if the net_device instance given to us originates from our driver */
static bool ocelot_netdevice_dev_check(const struct net_device *dev)
{
	return dev->netdev_ops == &ocelot_port_netdev_ops;
}

int ocelot_netdev_to_port(struct ocelot *ocelot, struct net_device *dev)
{
	struct ocelot_port_private *priv;

	if (!dev || !ocelot_netdevice_dev_check(dev))
		return -EINVAL;

	priv = netdev_priv(dev);
	if (priv->port.ocelot != ocelot)
		return -EINVAL;

	return priv->port.index;
}

static void ocelot_port_get_strings(struct net_device *netdev, u32 sset,
				    u8 *data)
{
	struct ocelot_port_private *priv = netdev_priv(netdev);
	struct ocelot *ocelot = priv->port.ocelot;
	int port = priv->port.index;

	ocelot_get_strings(ocelot, port, sset, data);
}

static void ocelot_port_get_ethtool_stats(struct net_device *dev,
					  struct ethtool_stats *stats,
					  u64 *data)
{
	struct ocelot_port_private *priv = netdev_priv(dev);
	struct ocelot *ocelot = priv->port.ocelot;
	int port = priv->port.index;

	ocelot_get_ethtool_stats(ocelot, port, data);
}

static int ocelot_port_get_sset_count(struct net_device *dev, int sset)
{
	struct ocelot_port_private *priv = netdev_priv(dev);
	struct ocelot *ocelot = priv->port.ocelot;
	int port = priv->port.index;

	return ocelot_get_sset_count(ocelot, port, sset);
}

static int ocelot_port_get_ts_info(struct net_device *dev,
				   struct kernel_ethtool_ts_info *info)
{
	struct ocelot_port_private *priv = netdev_priv(dev);
	struct ocelot *ocelot = priv->port.ocelot;
	int port = priv->port.index;

Annotation

Implementation Notes