drivers/net/ethernet/ti/am65-cpsw-ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/ti/am65-cpsw-ethtool.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/ti/am65-cpsw-ethtool.c
Extension
.c
Size
31623 bytes
Lines
1011
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 am65_cpsw_regdump_hdr {
	u32 module_id;
	u32 len;
};

/**
 * struct am65_cpsw_regdump_item - regdump module description
 *
 * @hdr: CPSW module header
 * @start_ofs: CPSW module registers start addr
 * @end_ofs: CPSW module registers end addr
 *
 * Registers dump provided in the format:
 *  u32 : module ID
 *  u32 : dump length
 *  u32[..len]: registers values
 */
struct am65_cpsw_regdump_item {
	struct am65_cpsw_regdump_hdr hdr;
	u32 start_ofs;
	u32 end_ofs;
};

#define AM65_CPSW_REGDUMP_REC(mod, start, end) { \
	.hdr.module_id = (mod), \
	.hdr.len = (end + 4 - start) * 2 + \
		   sizeof(struct am65_cpsw_regdump_hdr), \
	.start_ofs = (start), \
	.end_ofs = end, \
}

static const struct am65_cpsw_regdump_item am65_cpsw_regdump[] = {
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_NUSS, 0x0, 0x1c),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_RGMII_STATUS, 0x30, 0x4c),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_MDIO, 0xf00, 0xffc),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW, 0x20000, 0x2011c),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_P0, 0x21000, 0x21320),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_P1, 0x22000, 0x223a4),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_CPTS,
			      0x3d000, 0x3d048),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_ALE, 0x3e000, 0x3e13c),
	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL, 0, 0),
};

struct am65_cpsw_stats_regs {
	u32	rx_good_frames;
	u32	rx_broadcast_frames;
	u32	rx_multicast_frames;
	u32	rx_pause_frames;		/* slave */
	u32	rx_crc_errors;
	u32	rx_align_code_errors;		/* slave */
	u32	rx_oversized_frames;
	u32	rx_jabber_frames;		/* slave */
	u32	rx_undersized_frames;
	u32	rx_fragments;			/* slave */
	u32	ale_drop;
	u32	ale_overrun_drop;
	u32	rx_octets;
	u32	tx_good_frames;
	u32	tx_broadcast_frames;
	u32	tx_multicast_frames;
	u32	tx_pause_frames;		/* slave */
	u32	tx_deferred_frames;		/* slave */
	u32	tx_collision_frames;		/* slave */
	u32	tx_single_coll_frames;		/* slave */
	u32	tx_mult_coll_frames;		/* slave */
	u32	tx_excessive_collisions;	/* slave */
	u32	tx_late_collisions;		/* slave */
	u32	rx_ipg_error;			/* slave 10G only */
	u32	tx_carrier_sense_errors;	/* slave */
	u32	tx_octets;
	u32	tx_64B_frames;
	u32	tx_65_to_127B_frames;
	u32	tx_128_to_255B_frames;
	u32	tx_256_to_511B_frames;
	u32	tx_512_to_1023B_frames;
	u32	tx_1024B_frames;
	u32	net_octets;
	u32	rx_bottom_fifo_drop;
	u32	rx_port_mask_drop;
	u32	rx_top_fifo_drop;
	u32	ale_rate_limit_drop;
	u32	ale_vid_ingress_drop;
	u32	ale_da_eq_sa_drop;
	u32	ale_block_drop;			/* K3 */
	u32	ale_secure_drop;		/* K3 */
	u32	ale_auth_drop;			/* K3 */
	u32	ale_unknown_ucast;
	u32	ale_unknown_ucast_bytes;
	u32	ale_unknown_mcast;

Annotation

Implementation Notes