include/linux/can/rx-offload.h

File Facts

System

Linux kernel

Corpus path

include/linux/can/rx-offload.h

Extension

.h

Size

2102 bytes

Lines

66

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/netdevice.h
• linux/can.h

Detected Declarations

• struct can_rx_offload
• function can_rx_offload_disable

Annotated Snippet

struct can_rx_offload {
	struct net_device *dev;

	struct sk_buff *(*mailbox_read)(struct can_rx_offload *offload,
					unsigned int mb, u32 *timestamp,
					bool drop);

	struct sk_buff_head skb_queue;
	struct sk_buff_head skb_irq_queue;
	u32 skb_queue_len_max;

	unsigned int mb_first;
	unsigned int mb_last;

	struct napi_struct napi;

	bool inc;
};

int can_rx_offload_add_timestamp(struct net_device *dev,
				 struct can_rx_offload *offload);
int can_rx_offload_add_fifo(struct net_device *dev,
			    struct can_rx_offload *offload,
			    unsigned int weight);
int can_rx_offload_add_manual(struct net_device *dev,
			      struct can_rx_offload *offload,
			      unsigned int weight);
int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload,
					 u64 reg);
int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
int can_rx_offload_queue_timestamp(struct can_rx_offload *offload,
				   struct sk_buff *skb, u32 timestamp);
unsigned int can_rx_offload_get_echo_skb_queue_timestamp(struct can_rx_offload *offload,
							 unsigned int idx, u32 timestamp,
							 unsigned int *frame_len_ptr);
int can_rx_offload_queue_tail(struct can_rx_offload *offload,
			      struct sk_buff *skb);
unsigned int can_rx_offload_get_echo_skb_queue_tail(struct can_rx_offload *offload,
						    unsigned int idx,
						    unsigned int *frame_len_ptr);
void can_rx_offload_irq_finish(struct can_rx_offload *offload);
void can_rx_offload_threaded_irq_finish(struct can_rx_offload *offload);
void can_rx_offload_del(struct can_rx_offload *offload);
void can_rx_offload_enable(struct can_rx_offload *offload);

static inline void can_rx_offload_disable(struct can_rx_offload *offload)
{
	napi_disable(&offload->napi);
}

#endif /* !_CAN_RX_OFFLOAD_H */

Annotation

• Immediate include surface: `linux/netdevice.h`, `linux/can.h`.
• Detected declarations: `struct can_rx_offload`, `function can_rx_offload_disable`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.