drivers/net/ethernet/intel/igb/igb_ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/intel/igb/igb_ethtool.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/intel/igb/igb_ethtool.c
Extension
.c
Size
99681 bytes
Lines
3501
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 igb_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

#define IGB_STAT(_name, _stat) { \
	.stat_string = _name, \
	.sizeof_stat = sizeof_field(struct igb_adapter, _stat), \
	.stat_offset = offsetof(struct igb_adapter, _stat) \
}
static const struct igb_stats igb_gstrings_stats[] = {
	IGB_STAT("rx_packets", stats.gprc),
	IGB_STAT("tx_packets", stats.gptc),
	IGB_STAT("rx_bytes", stats.gorc),
	IGB_STAT("tx_bytes", stats.gotc),
	IGB_STAT("rx_broadcast", stats.bprc),
	IGB_STAT("tx_broadcast", stats.bptc),
	IGB_STAT("rx_multicast", stats.mprc),
	IGB_STAT("tx_multicast", stats.mptc),
	IGB_STAT("multicast", stats.mprc),
	IGB_STAT("collisions", stats.colc),
	IGB_STAT("rx_crc_errors", stats.crcerrs),
	IGB_STAT("rx_no_buffer_count", stats.rnbc),
	IGB_STAT("rx_missed_errors", stats.mpc),
	IGB_STAT("tx_aborted_errors", stats.ecol),
	IGB_STAT("tx_carrier_errors", stats.tncrs),
	IGB_STAT("tx_window_errors", stats.latecol),
	IGB_STAT("tx_abort_late_coll", stats.latecol),
	IGB_STAT("tx_deferred_ok", stats.dc),
	IGB_STAT("tx_single_coll_ok", stats.scc),
	IGB_STAT("tx_multi_coll_ok", stats.mcc),
	IGB_STAT("tx_timeout_count", tx_timeout_count),
	IGB_STAT("rx_long_length_errors", stats.roc),
	IGB_STAT("rx_short_length_errors", stats.ruc),
	IGB_STAT("rx_align_errors", stats.algnerrc),
	IGB_STAT("tx_tcp_seg_good", stats.tsctc),
	IGB_STAT("tx_tcp_seg_failed", stats.tsctfc),
	IGB_STAT("rx_flow_control_xon", stats.xonrxc),
	IGB_STAT("rx_flow_control_xoff", stats.xoffrxc),
	IGB_STAT("tx_flow_control_xon", stats.xontxc),
	IGB_STAT("tx_flow_control_xoff", stats.xofftxc),
	IGB_STAT("rx_long_byte_count", stats.gorc),
	IGB_STAT("tx_dma_out_of_sync", stats.doosync),
	IGB_STAT("tx_smbus", stats.mgptc),
	IGB_STAT("rx_smbus", stats.mgprc),
	IGB_STAT("dropped_smbus", stats.mgpdc),
	IGB_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
	IGB_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
	IGB_STAT("os2bmc_tx_by_host", stats.o2bspc),
	IGB_STAT("os2bmc_rx_by_host", stats.b2ogprc),
	IGB_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
	IGB_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
	IGB_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
};

#define IGB_NETDEV_STAT(_net_stat) { \
	.stat_string = __stringify(_net_stat), \
	.sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
	.stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
}
static const struct igb_stats igb_gstrings_net_stats[] = {
	IGB_NETDEV_STAT(rx_errors),
	IGB_NETDEV_STAT(tx_errors),
	IGB_NETDEV_STAT(tx_dropped),
	IGB_NETDEV_STAT(rx_length_errors),
	IGB_NETDEV_STAT(rx_over_errors),
	IGB_NETDEV_STAT(rx_frame_errors),
	IGB_NETDEV_STAT(rx_fifo_errors),
	IGB_NETDEV_STAT(tx_fifo_errors),
	IGB_NETDEV_STAT(tx_heartbeat_errors)
};

#define IGB_GLOBAL_STATS_LEN	\
	(sizeof(igb_gstrings_stats) / sizeof(struct igb_stats))
#define IGB_NETDEV_STATS_LEN	\
	(sizeof(igb_gstrings_net_stats) / sizeof(struct igb_stats))
#define IGB_RX_QUEUE_STATS_LEN \
	(sizeof(struct igb_rx_queue_stats) / sizeof(u64))

#define IGB_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */

#define IGB_QUEUE_STATS_LEN \
	((((struct igb_adapter *)netdev_priv(netdev))->num_rx_queues * \
	  IGB_RX_QUEUE_STATS_LEN) + \
	 (((struct igb_adapter *)netdev_priv(netdev))->num_tx_queues * \
	  IGB_TX_QUEUE_STATS_LEN))
#define IGB_STATS_LEN \
	(IGB_GLOBAL_STATS_LEN + IGB_NETDEV_STATS_LEN + IGB_QUEUE_STATS_LEN)

Annotation

Implementation Notes