drivers/net/ethernet/netronome/nfp/flower/cmsg.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/netronome/nfp/flower/cmsg.h

Extension

.h

Size

24833 bytes

Lines

753

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/bitfield.h
• linux/skbuff.h
• linux/types.h
• net/geneve.h
• net/gre.h
• net/vxlan.h
• ../nfp_app.h
• ../nfpcore/nfp_cpp.h

Detected Declarations

• struct nfp_fl_act_head
• struct nfp_fl_set_eth
• struct nfp_fl_set_ip4_addrs
• struct nfp_fl_set_ip4_ttl_tos
• struct nfp_fl_set_ipv6_tc_hl_fl
• struct nfp_fl_set_ipv6_addr
• struct nfp_fl_set_tport
• struct nfp_fl_output
• struct nfp_fl_push_vlan
• struct nfp_fl_pop_vlan
• struct nfp_fl_pre_lag
• struct nfp_fl_pre_tunnel
• struct nfp_fl_set_tun
• struct nfp_fl_push_geneve
• struct nfp_fl_push_mpls
• struct nfp_fl_pop_mpls
• struct nfp_fl_set_mpls
• struct nfp_fl_meter
• struct nfp_flower_meta_tci
• struct nfp_flower_ext_meta
• struct nfp_flower_in_port
• struct nfp_flower_mac_mpls
• struct nfp_flower_vlan
• struct nfp_flower_tp_ports
• struct nfp_flower_ip_ext
• struct nfp_flower_ipv4
• struct nfp_flower_ipv6
• struct nfp_flower_tun_ipv4
• struct nfp_flower_tun_ipv6
• struct nfp_flower_tun_ip_ext
• struct nfp_flower_ipv4_udp_tun
• struct nfp_flower_ipv6_udp_tun
• struct nfp_flower_ipv4_gre_tun
• struct nfp_flower_ipv6_gre_tun
• struct nfp_flower_geneve_options
• struct nfp_flower_cmsg_hdr
• struct nfp_flower_cmsg_mac_repr
• struct nfp_flower_cmsg_portmod
• struct nfp_flower_cmsg_portreify
• struct nfp_flower_cmsg_merge_hint
• enum nfp_flower_tun_type
• enum nfp_flower_cmsg_type_port
• enum nfp_flower_cmsg_port_type
• enum nfp_flower_cmsg_port_vnic_type
• function nfp_flower_internal_port_get_port_id
• function nfp_flower_cmsg_phys_port
• function nfp_flower_cmsg_pcie_port
• function nfp_flower_cmsg_get_data_len

Annotated Snippet

struct nfp_fl_act_head {
	u8 jump_id;
	u8 len_lw;
};

struct nfp_fl_set_eth {
	struct nfp_fl_act_head head;
	__be16 reserved;
	u8 eth_addr_mask[ETH_ALEN * 2];
	u8 eth_addr_val[ETH_ALEN * 2];
};

struct nfp_fl_set_ip4_addrs {
	struct nfp_fl_act_head head;
	__be16 reserved;
	__be32 ipv4_src_mask;
	__be32 ipv4_src;
	__be32 ipv4_dst_mask;
	__be32 ipv4_dst;
};

struct nfp_fl_set_ip4_ttl_tos {
	struct nfp_fl_act_head head;
	u8 ipv4_ttl_mask;
	u8 ipv4_tos_mask;
	u8 ipv4_ttl;
	u8 ipv4_tos;
	__be16 reserved;
};

struct nfp_fl_set_ipv6_tc_hl_fl {
	struct nfp_fl_act_head head;
	u8 ipv6_tc_mask;
	u8 ipv6_hop_limit_mask;
	__be16 reserved;
	u8 ipv6_tc;
	u8 ipv6_hop_limit;
	__be32 ipv6_label_mask;
	__be32 ipv6_label;
};

struct nfp_fl_set_ipv6_addr {
	struct nfp_fl_act_head head;
	__be16 reserved;
	struct {
		__be32 mask;
		__be32 exact;
	} ipv6[4];
};

struct nfp_fl_set_tport {
	struct nfp_fl_act_head head;
	__be16 reserved;
	u8 tp_port_mask[4];
	u8 tp_port_val[4];
};

struct nfp_fl_output {
	struct nfp_fl_act_head head;
	__be16 flags;
	__be32 port;
};

struct nfp_fl_push_vlan {
	struct nfp_fl_act_head head;
	__be16 reserved;
	__be16 vlan_tpid;
	__be16 vlan_tci;
};

struct nfp_fl_pop_vlan {
	struct nfp_fl_act_head head;
	__be16 reserved;
};

struct nfp_fl_pre_lag {
	struct nfp_fl_act_head head;
	__be16 group_id;
	u8 lag_version[3];
	u8 instance;
};

#define NFP_FL_PRE_LAG_VER_OFF	8

struct nfp_fl_pre_tunnel {
	struct nfp_fl_act_head head;
	__be16 flags;
	union {
		__be32 ipv4_dst;
		struct in6_addr ipv6_dst;

Annotation

• Immediate include surface: `linux/bitfield.h`, `linux/skbuff.h`, `linux/types.h`, `net/geneve.h`, `net/gre.h`, `net/vxlan.h`, `../nfp_app.h`, `../nfpcore/nfp_cpp.h`.
• Detected declarations: `struct nfp_fl_act_head`, `struct nfp_fl_set_eth`, `struct nfp_fl_set_ip4_addrs`, `struct nfp_fl_set_ip4_ttl_tos`, `struct nfp_fl_set_ipv6_tc_hl_fl`, `struct nfp_fl_set_ipv6_addr`, `struct nfp_fl_set_tport`, `struct nfp_fl_output`, `struct nfp_fl_push_vlan`, `struct nfp_fl_pop_vlan`.
• 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.