drivers/net/ethernet/apm/xgene/xgene_enet_cle.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/apm/xgene/xgene_enet_cle.h

Extension

.h

Size

5434 bytes

Lines

291

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

• linux/io.h
• linux/random.h

Detected Declarations

• struct xgene_cle_ptree_branch
• struct xgene_cle_ptree_ewdn
• struct xgene_cle_ptree_key
• struct xgene_cle_ptree_kn
• struct xgene_cle_dbptr
• struct xgene_cle_ptree
• struct xgene_enet_cle
• enum xgene_cle_ptree_nodes
• enum xgene_cle_byte_store
• enum xgene_cle_node_type
• enum xgene_cle_op_type
• enum xgene_cle_parser
• enum xgene_cle_dram_type
• enum xgene_cle_cmd_type
• enum xgene_cle_ipv4_rss_hashtype
• enum xgene_cle_prot_type
• enum xgene_cle_prot_version
• enum xgene_cle_ptree_dbptrs

Annotated Snippet

struct xgene_cle_ptree_branch {
	bool valid;
	u16 next_packet_pointer;
	bool jump_bw;
	bool jump_rel;
	u8 operation;
	u16 next_node;
	u8 next_branch;
	u16 data;
	u16 mask;
};

struct xgene_cle_ptree_ewdn {
	u8 node_type;
	bool last_node;
	bool hdr_len_store;
	u8 hdr_extn;
	u8 byte_store;
	u8 search_byte_store;
	u16 result_pointer;
	u8 num_branches;
	struct xgene_cle_ptree_branch branch[6];
};

struct xgene_cle_ptree_key {
	u8 priority;
	u16 result_pointer;
};

struct xgene_cle_ptree_kn {
	u8 node_type;
	u8 num_keys;
	struct xgene_cle_ptree_key key[32];
};

struct xgene_cle_dbptr {
	u8 split_boundary;
	u8 mirror_nxtfpsel;
	u8 mirror_fpsel;
	u16 mirror_dstqid;
	u8 drop;
	u8 mirror;
	u8 hdr_data_split;
	u64 hopinfomsbs;
	u8 DR;
	u8 HR;
	u64 hopinfomlsbs;
	u16 h0enq_num;
	u8 h0fpsel;
	u8 nxtfpsel;
	u8 fpsel;
	u16 dstqid;
	u8 cle_priority;
	u8 cle_flowgroup;
	u8 cle_perflow;
	u8 cle_insert_timestamp;
	u8 stash;
	u8 in;
	u8 perprioen;
	u8 perflowgroupen;
	u8 perflowen;
	u8 selhash;
	u8 selhdrext;
	u8 mirror_nxtfpsel_msb;
	u8 mirror_fpsel_msb;
	u8 hfpsel_msb;
	u8 nxtfpsel_msb;
	u8 fpsel_msb;
};

struct xgene_cle_ptree {
	struct xgene_cle_ptree_kn *kn;
	struct xgene_cle_dbptr *dbptr;
	u32 num_kn;
	u32 num_dbptr;
	u32 start_node;
	u32 start_pkt;
	u32 start_dbptr;
};

struct xgene_enet_cle {
	void __iomem *base;
	struct xgene_cle_ptree ptree;
	enum xgene_cle_parser active_parser;
	u32 parsers;
	u32 max_nodes;
	u32 max_dbptrs;
	u32 jump_bytes;
};

Annotation

• Immediate include surface: `linux/io.h`, `linux/random.h`.
• Detected declarations: `struct xgene_cle_ptree_branch`, `struct xgene_cle_ptree_ewdn`, `struct xgene_cle_ptree_key`, `struct xgene_cle_ptree_kn`, `struct xgene_cle_dbptr`, `struct xgene_cle_ptree`, `struct xgene_enet_cle`, `enum xgene_cle_ptree_nodes`, `enum xgene_cle_byte_store`, `enum xgene_cle_node_type`.
• 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.