drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
Extension
.h
Size
36315 bytes
Lines
1262
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 otx2_lmt_info {
	u64 lmt_addr;
	u16 lmt_id;
};

struct otx2_rss_info {
	u8 enable;
	u32 flowkey_cfg;
	u16 rss_size;
#define RSS_HASH_KEY_SIZE	44   /* 352 bit key */
	u8  key[RSS_HASH_KEY_SIZE];
	u32 ind_tbl[MAX_RSS_INDIR_TBL_SIZE];
};

/* NIX (or NPC) RX errors */
enum otx2_errlvl {
	NPC_ERRLVL_RE,
	NPC_ERRLVL_LID_LA,
	NPC_ERRLVL_LID_LB,
	NPC_ERRLVL_LID_LC,
	NPC_ERRLVL_LID_LD,
	NPC_ERRLVL_LID_LE,
	NPC_ERRLVL_LID_LF,
	NPC_ERRLVL_LID_LG,
	NPC_ERRLVL_LID_LH,
	NPC_ERRLVL_NIX = 0x0F,
};

enum otx2_errcodes_re {
	/* NPC_ERRLVL_RE errcodes */
	ERRCODE_FCS = 0x7,
	ERRCODE_FCS_RCV = 0x8,
	ERRCODE_UNDERSIZE = 0x10,
	ERRCODE_OVERSIZE = 0x11,
	ERRCODE_OL2_LEN_MISMATCH = 0x12,
	/* NPC_ERRLVL_NIX errcodes */
	ERRCODE_OL3_LEN = 0x10,
	ERRCODE_OL4_LEN = 0x11,
	ERRCODE_OL4_CSUM = 0x12,
	ERRCODE_IL3_LEN = 0x20,
	ERRCODE_IL4_LEN = 0x21,
	ERRCODE_IL4_CSUM = 0x22,
};

enum otx2_xdp_action {
	OTX2_XDP_TX	  = BIT(0),
	OTX2_XDP_REDIRECT = BIT(1),
	OTX2_AF_XDP_FRAME = BIT(2),
};

struct otx2_dev_stats {
	u64 rx_bytes;
	u64 rx_frames;
	u64 rx_ucast_frames;
	u64 rx_bcast_frames;
	u64 rx_mcast_frames;
	u64 rx_drops;

	u64 tx_bytes;
	u64 tx_frames;
	u64 tx_ucast_frames;
	u64 tx_bcast_frames;
	u64 tx_mcast_frames;
	u64 tx_drops;
	atomic_long_t tx_discards;
};

/* Driver counted stats */
struct otx2_drv_stats {
	atomic_t rx_fcs_errs;
	atomic_t rx_oversize_errs;
	atomic_t rx_undersize_errs;
	atomic_t rx_csum_errs;
	atomic_t rx_len_errs;
	atomic_t rx_other_errs;
};

struct mbox {
	struct otx2_mbox	mbox;
	struct work_struct	mbox_wrk;
	struct otx2_mbox	mbox_up;
	struct work_struct	mbox_up_wrk;
	struct otx2_nic		*pfvf;
	void			*bbuf_base; /* Bounce buffer for mbox memory */
	struct mutex		lock;	/* serialize mailbox access */
	int			num_msgs; /* mbox number of messages */
	int			up_num_msgs; /* mbox_up number of messages */
};

/* Egress rate limiting definitions */

Annotation

Implementation Notes