drivers/net/ethernet/broadcom/bnxt/bnxt_debugfs.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/broadcom/bnxt/bnxt_debugfs.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/broadcom/bnxt/bnxt_debugfs.c
Extension
.c
Size
2333 bytes
Lines
108
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.

Dependency Surface

Detected Declarations

Annotated Snippet

static const struct file_operations debugfs_dim_fops = {
	.owner = THIS_MODULE,
	.open = simple_open,
	.read = debugfs_dim_read,
};

static void debugfs_dim_ring_init(struct dim *dim, int ring_idx,
				  struct dentry *dd)
{
	static char qname[12];

	snprintf(qname, sizeof(qname), "%d", ring_idx);
	debugfs_create_file(qname, 0600, dd, dim, &debugfs_dim_fops);
}

void bnxt_debug_dev_init(struct bnxt *bp)
{
	const char *pname = pci_name(bp->pdev);
	struct dentry *dir;
	int i;

	bp->debugfs_pdev = debugfs_create_dir(pname, bnxt_debug_mnt);
	dir = debugfs_create_dir("dim", bp->debugfs_pdev);

	/* create files for each rx ring */
	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;

		if (cpr && bp->bnapi[i]->rx_ring)
			debugfs_dim_ring_init(&cpr->dim, i, dir);
	}
}

void bnxt_debug_dev_exit(struct bnxt *bp)
{
	if (bp) {
		debugfs_remove_recursive(bp->debugfs_pdev);
		bp->debugfs_pdev = NULL;
	}
}

void bnxt_debug_init(void)
{
	bnxt_debug_mnt = debugfs_create_dir("bnxt_en", NULL);
}

void bnxt_debug_exit(void)
{
	debugfs_remove_recursive(bnxt_debug_mnt);
}

Annotation

Implementation Notes