drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
Extension
.c
Size
14760 bytes
Lines
516
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source 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

struct pch_gbe_stats {
	char string[ETH_GSTRING_LEN];
	size_t size;
	size_t offset;
};

#define PCH_GBE_STAT(m)						\
{								\
	.string = #m,						\
	.size = sizeof_field(struct pch_gbe_hw_stats, m),	\
	.offset = offsetof(struct pch_gbe_hw_stats, m),		\
}

/*
 * pch_gbe_gstrings_stats - ethtool information status name list
 */
static const struct pch_gbe_stats pch_gbe_gstrings_stats[] = {
	PCH_GBE_STAT(rx_packets),
	PCH_GBE_STAT(tx_packets),
	PCH_GBE_STAT(rx_bytes),
	PCH_GBE_STAT(tx_bytes),
	PCH_GBE_STAT(rx_errors),
	PCH_GBE_STAT(tx_errors),
	PCH_GBE_STAT(rx_dropped),
	PCH_GBE_STAT(tx_dropped),
	PCH_GBE_STAT(multicast),
	PCH_GBE_STAT(collisions),
	PCH_GBE_STAT(rx_crc_errors),
	PCH_GBE_STAT(rx_frame_errors),
	PCH_GBE_STAT(rx_alloc_buff_failed),
	PCH_GBE_STAT(tx_length_errors),
	PCH_GBE_STAT(tx_aborted_errors),
	PCH_GBE_STAT(tx_carrier_errors),
	PCH_GBE_STAT(tx_timeout_count),
	PCH_GBE_STAT(tx_restart_count),
	PCH_GBE_STAT(intr_rx_dsc_empty_count),
	PCH_GBE_STAT(intr_rx_frame_err_count),
	PCH_GBE_STAT(intr_rx_fifo_err_count),
	PCH_GBE_STAT(intr_rx_dma_err_count),
	PCH_GBE_STAT(intr_tx_fifo_err_count),
	PCH_GBE_STAT(intr_tx_dma_err_count),
	PCH_GBE_STAT(intr_tcpip_err_count)
};

#define PCH_GBE_QUEUE_STATS_LEN 0
#define PCH_GBE_GLOBAL_STATS_LEN	ARRAY_SIZE(pch_gbe_gstrings_stats)
#define PCH_GBE_STATS_LEN (PCH_GBE_GLOBAL_STATS_LEN + PCH_GBE_QUEUE_STATS_LEN)

#define PCH_GBE_MAC_REGS_LEN    (sizeof(struct pch_gbe_regs) / 4)
#define PCH_GBE_REGS_LEN        (PCH_GBE_MAC_REGS_LEN + PCH_GBE_PHY_REGS_LEN)
/**
 * pch_gbe_get_link_ksettings - Get device-specific settings
 * @netdev: Network interface device structure
 * @ecmd:   Ethtool command
 * Returns:
 *	0:			Successful.
 *	Negative value:		Failed.
 */
static int pch_gbe_get_link_ksettings(struct net_device *netdev,
				      struct ethtool_link_ksettings *ecmd)
{
	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
	u32 supported, advertising;

	mii_ethtool_get_link_ksettings(&adapter->mii, ecmd);

	ethtool_convert_link_mode_to_legacy_u32(&supported,
						ecmd->link_modes.supported);
	ethtool_convert_link_mode_to_legacy_u32(&advertising,
						ecmd->link_modes.advertising);

	supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
	advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);

	ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
						supported);
	ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.advertising,
						advertising);

	if (!netif_carrier_ok(adapter->netdev))
		ecmd->base.speed = SPEED_UNKNOWN;

	return 0;
}

/**
 * pch_gbe_set_link_ksettings - Set device-specific settings
 * @netdev: Network interface device structure
 * @ecmd:   Ethtool command
 * Returns:

Annotation

Implementation Notes