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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

15588 bytes

Lines

670

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.

• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct npc_kpu_profile_cam
• struct npc_kpu_profile_cam2
• struct npc_kpu_profile_action
• struct npc_kpu_profile
• struct npc_kpu_cam
• struct npc_kpu_action0
• struct npc_kpu_action1
• struct npc_kpu_pkind_cpi_def
• struct nix_rx_action
• struct nix_tx_action
• struct npc_coalesced_kpu_prfl
• struct npc_mcam_kex
• struct npc_kpu_fwdata
• struct npc_lt_def
• struct npc_lt_def_ipsec
• struct npc_lt_def_apad
• struct npc_lt_def_color
• struct npc_lt_def_et
• struct npc_lt_def_cfg
• struct npc_kpu_profile_fwdata
• struct rvu_npc_mcam_rule
• enum NPC_LID_E
• enum npc_kpu_la_ltype
• enum npc_kpu_lb_ltype
• enum npc_kpu_lc_ltype
• enum npc_kpu_ld_ltype
• enum npc_kpu_le_ltype
• enum npc_kpu_lf_ltype
• enum npc_kpu_lg_ltype
• enum npc_kpu_lh_ltype
• enum npc_pkind_type
• enum npc_interface_type
• enum key_fields

Annotated Snippet

struct npc_kpu_profile_cam {
	u8 state;
	u8 state_mask;
	u16 dp0;
	u16 dp0_mask;
	u16 dp1;
	u16 dp1_mask;
	u16 dp2;
	u16 dp2_mask;
} __packed;

struct npc_kpu_profile_cam2 {
	u8 state;
	u8 state_mask;
	u16 dp0;
	u16 dp0_mask;
	u16 dp1;
	u16 dp1_mask;
	u16 dp2;
	u16 dp2_mask;
	u8 ptype;
	u8 ptype_mask;
} __packed;

struct npc_kpu_profile_action {
	u8 errlev;
	u8 errcode;
	u8 dp0_offset;
	u8 dp1_offset;
	u8 dp2_offset;
	u8 bypass_count;
	u8 parse_done;
	u8 next_state;
	u8 ptr_advance;
	u8 cap_ena;
	u8 lid;
	u8 ltype;
	u8 flags;
	u8 offset;
	u8 mask;
	u8 right;
	u8 shift;
} __packed;

struct npc_kpu_profile {
	int cam_entries;
	int action_entries;
	struct npc_kpu_profile_cam *cam;
	struct npc_kpu_profile_action *action;
	int cam_entries2;
	int action_entries2;
	struct npc_kpu_profile_action *action2;
	struct npc_kpu_profile_cam2 *cam2;
};

/* NPC KPU register formats */
struct npc_kpu_cam {
#if defined(__BIG_ENDIAN_BITFIELD)
	u64 rsvd_63_56     : 8;
	u64 state          : 8;
	u64 dp2_data       : 16;
	u64 dp1_data       : 16;
	u64 dp0_data       : 16;
#else
	u64 dp0_data       : 16;
	u64 dp1_data       : 16;
	u64 dp2_data       : 16;
	u64 state          : 8;
	u64 rsvd_63_56     : 8;
#endif
};

struct npc_kpu_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 capture_flags  : 8;
	u64 ptr_advance    : 8;
	u64 var_len_offset : 8;
	u64 var_len_mask   : 8;
	u64 var_len_right  : 1;
	u64 var_len_shift  : 3;
#else
	u64 var_len_shift  : 3;

Annotation

• Detected declarations: `struct npc_kpu_profile_cam`, `struct npc_kpu_profile_cam2`, `struct npc_kpu_profile_action`, `struct npc_kpu_profile`, `struct npc_kpu_cam`, `struct npc_kpu_action0`, `struct npc_kpu_action1`, `struct npc_kpu_pkind_cpi_def`, `struct nix_rx_action`, `struct nix_tx_action`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.