drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.h

Extension

.h

Size

2516 bytes

Lines

71

Domain

Driver Families

Bucket

drivers/net

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/export.h

Detected Declarations

• struct t4_debugfs_entry
• struct seq_tab
• function hex2val

Annotated Snippet

const struct file_operations *ops;
	umode_t mode;
	unsigned char data;
};

struct seq_tab {
	int (*show)(struct seq_file *seq, void *v, int idx);
	unsigned int rows;        /* # of entries */
	unsigned char width;      /* size in bytes of each entry */
	unsigned char skip_first; /* whether the first line is a header */
	char data[];             /* the table data */
};

static inline unsigned int hex2val(char c)
{
	return isdigit(c) ? c - '0' : tolower(c) - 'a' + 10;
}

struct seq_tab *seq_open_tab(struct file *f, unsigned int rows,
			     unsigned int width, unsigned int have_header,
			     int (*show)(struct seq_file *seq, void *v, int i));

int t4_setup_debugfs(struct adapter *adap);
void add_debugfs_files(struct adapter *adap,
		       struct t4_debugfs_entry *files,
		       unsigned int nfiles);
int mem_open(struct inode *inode, struct file *file);

#endif

Annotation

• Immediate include surface: `linux/export.h`.
• Detected declarations: `struct t4_debugfs_entry`, `struct seq_tab`, `function hex2val`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: pattern 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.