drivers/net/ethernet/synopsys/dwc-xlgmac-ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/synopsys/dwc-xlgmac-ethtool.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/synopsys/dwc-xlgmac-ethtool.c
Extension
.c
Size
8901 bytes
Lines
269
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 xlgmac_stats_desc {
	char stat_string[ETH_GSTRING_LEN];
	int stat_offset;
};

#define XLGMAC_STAT(str, var)					\
	{							\
		str,						\
		offsetof(struct xlgmac_pdata, stats.var),	\
	}

static const struct xlgmac_stats_desc xlgmac_gstring_stats[] = {
	/* MMC TX counters */
	XLGMAC_STAT("tx_bytes", txoctetcount_gb),
	XLGMAC_STAT("tx_bytes_good", txoctetcount_g),
	XLGMAC_STAT("tx_packets", txframecount_gb),
	XLGMAC_STAT("tx_packets_good", txframecount_g),
	XLGMAC_STAT("tx_unicast_packets", txunicastframes_gb),
	XLGMAC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
	XLGMAC_STAT("tx_broadcast_packets_good", txbroadcastframes_g),
	XLGMAC_STAT("tx_multicast_packets", txmulticastframes_gb),
	XLGMAC_STAT("tx_multicast_packets_good", txmulticastframes_g),
	XLGMAC_STAT("tx_vlan_packets_good", txvlanframes_g),
	XLGMAC_STAT("tx_64_byte_packets", tx64octets_gb),
	XLGMAC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
	XLGMAC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
	XLGMAC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
	XLGMAC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
	XLGMAC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
	XLGMAC_STAT("tx_underflow_errors", txunderflowerror),
	XLGMAC_STAT("tx_pause_frames", txpauseframes),

	/* MMC RX counters */
	XLGMAC_STAT("rx_bytes", rxoctetcount_gb),
	XLGMAC_STAT("rx_bytes_good", rxoctetcount_g),
	XLGMAC_STAT("rx_packets", rxframecount_gb),
	XLGMAC_STAT("rx_unicast_packets_good", rxunicastframes_g),
	XLGMAC_STAT("rx_broadcast_packets_good", rxbroadcastframes_g),
	XLGMAC_STAT("rx_multicast_packets_good", rxmulticastframes_g),
	XLGMAC_STAT("rx_vlan_packets", rxvlanframes_gb),
	XLGMAC_STAT("rx_64_byte_packets", rx64octets_gb),
	XLGMAC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
	XLGMAC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
	XLGMAC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
	XLGMAC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
	XLGMAC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
	XLGMAC_STAT("rx_undersize_packets_good", rxundersize_g),
	XLGMAC_STAT("rx_oversize_packets_good", rxoversize_g),
	XLGMAC_STAT("rx_crc_errors", rxcrcerror),
	XLGMAC_STAT("rx_crc_errors_small_packets", rxrunterror),
	XLGMAC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
	XLGMAC_STAT("rx_length_errors", rxlengtherror),
	XLGMAC_STAT("rx_out_of_range_errors", rxoutofrangetype),
	XLGMAC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
	XLGMAC_STAT("rx_watchdog_errors", rxwatchdogerror),
	XLGMAC_STAT("rx_pause_frames", rxpauseframes),

	/* Extra counters */
	XLGMAC_STAT("tx_tso_packets", tx_tso_packets),
	XLGMAC_STAT("rx_split_header_packets", rx_split_header_packets),
	XLGMAC_STAT("tx_process_stopped", tx_process_stopped),
	XLGMAC_STAT("rx_process_stopped", rx_process_stopped),
	XLGMAC_STAT("tx_buffer_unavailable", tx_buffer_unavailable),
	XLGMAC_STAT("rx_buffer_unavailable", rx_buffer_unavailable),
	XLGMAC_STAT("fatal_bus_error", fatal_bus_error),
	XLGMAC_STAT("tx_vlan_packets", tx_vlan_packets),
	XLGMAC_STAT("rx_vlan_packets", rx_vlan_packets),
	XLGMAC_STAT("napi_poll_isr", napi_poll_isr),
	XLGMAC_STAT("napi_poll_txtimer", napi_poll_txtimer),
};

#define XLGMAC_STATS_COUNT	ARRAY_SIZE(xlgmac_gstring_stats)

static void xlgmac_ethtool_get_drvinfo(struct net_device *netdev,
				       struct ethtool_drvinfo *drvinfo)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);
	u32 ver = pdata->hw_feat.version;
	u32 snpsver, devid, userver;

	strscpy(drvinfo->driver, pdata->drv_name, sizeof(drvinfo->driver));
	strscpy(drvinfo->version, pdata->drv_ver, sizeof(drvinfo->version));
	strscpy(drvinfo->bus_info, dev_name(pdata->dev),
		sizeof(drvinfo->bus_info));
	/* S|SNPSVER: Synopsys-defined Version
	 * D|DEVID: Indicates the Device family
	 * U|USERVER: User-defined Version
	 */
	snpsver = XLGMAC_GET_REG_BITS(ver, MAC_VR_SNPSVER_POS,
				      MAC_VR_SNPSVER_LEN);

Annotation

Implementation Notes