drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.h
Extension
.h
Size
11369 bytes
Lines
353
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 npc_subbank {
	u16 b0t, b0b, b1t, b1b;
	enum npc_subbank_flag flags;
	struct mutex lock;	/* Protect subbank resources */
	DECLARE_BITMAP(b0map, MAX_SUBBANK_DEPTH);
	DECLARE_BITMAP(b1map, MAX_SUBBANK_DEPTH);
	u16 idx;
	u16 arr_idx;
	u16 free_cnt;
	u8 key_type;
};

/**
 * struct npc_defrag_show_node - Defragmentation show node
 * @old_midx:	Old mcam index.
 * @new_midx:	New mcam index.
 * @vidx:	Virtual index
 * @list:	Linked list of these nodes
 *
 * This structure holds information on last defragmentation
 * executed on mcam resource.
 */
struct npc_defrag_show_node {
	u16 old_midx;
	u16 new_midx;
	u16 vidx;
	struct list_head list;
};

/**
 * struct npc_priv_t - NPC private structure.
 * @bank_depth:		Total entries in each bank.
 * @num_banks:		Number of banks.
 * @num_subbanks:	Number of subbanks.
 * @subbank_depth:	Depth of subbank.
 * @en_map:		Enable/disable status.
 * @kw:			Kex configured key type.
 * @sb:			Subbank array.
 * @xa_sb_used:		Array of used subbanks.
 * @xa_sb_free:		Array of free subbanks.
 * @xa_pf2idx_map:	PF to mcam index map.
 * @xa_idx2pf_map:	Mcam index to PF map.
 * @xa_pf_map:		Pcifunc to index map.
 * @pf_cnt:		Number of PFs.
 * @xa_pf2dfl_rmap:	PF to default rule index map.
 * @xa_idx2vidx_map:	Mcam index to virtual index map.
 * @xa_vidx2idx_map:	virtual index to mcam index map.
 * @defrag_lh:		Defrag list head.
 * @lock:		Lock for defrag list
 *
 * This structure is populated during probing time by reading
 * HW csr registers.
 */
struct npc_priv_t {
	int bank_depth;
	int num_banks;
	int num_subbanks;
	int subbank_depth;
	DECLARE_BITMAP(en_map, MAX_NUM_BANKS *
		       MAX_NUM_SUB_BANKS *
		       MAX_SUBBANK_DEPTH);
	u8 kw;
	struct npc_subbank *sb;
	struct xarray xa_sb_used;
	struct xarray xa_sb_free;
	struct xarray *xa_pf2idx_map;
	struct xarray xa_idx2pf_map;
	struct xarray xa_pf_map;
	struct xarray xa_pf2dfl_rmap;
	struct xarray xa_idx2vidx_map;
	struct xarray xa_vidx2idx_map;
	struct list_head defrag_lh;
	struct mutex lock; /* protect defrag nodes */
	int pf_cnt;
};

struct npc_kpm_action0 {
#if defined(__BIG_ENDIAN_BITFIELD)
	u64 rsvd_63_57     : 7;
	u64 byp_count      : 3;
	u64 capture_ena    : 1;
	u64 parse_done     : 1;
	u64 next_state     : 8;
	u64 rsvd_43        : 1;
	u64 capture_lid    : 3;
	u64 capture_ltype  : 4;
	u64 rsvd_32_35     : 4;
	u64 capture_flags  : 4;
	u64 ptr_advance    : 8;
	u64 var_len_offset : 8;

Annotation

Implementation Notes