drivers/infiniband/hw/hns/hns_roce_debugfs.c

Source file repositories/reference/linux-study-clean/drivers/infiniband/hw/hns/hns_roce_debugfs.c

File Facts

System
Linux kernel
Corpus path
drivers/infiniband/hw/hns/hns_roce_debugfs.c
Extension
.c
Size
10393 bytes
Lines
371
Domain
Driver Families
Bucket
drivers/infiniband
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 hns_debugfs_seqfile_fops = {
	.owner = THIS_MODULE,
	.open = hns_debugfs_seqfile_open,
	.release = single_release,
	.read = seq_read,
	.write = hns_debugfs_seqfile_write,
	.llseek = seq_lseek
};

static const char * const sw_stat_info[] = {
	[HNS_ROCE_DFX_AEQE_CNT] = "aeqe",
	[HNS_ROCE_DFX_CEQE_CNT] = "ceqe",
	[HNS_ROCE_DFX_CMDS_CNT] = "cmds",
	[HNS_ROCE_DFX_CMDS_ERR_CNT] = "cmds_err",
	[HNS_ROCE_DFX_MBX_POSTED_CNT] = "posted_mbx",
	[HNS_ROCE_DFX_MBX_POLLED_CNT] = "polled_mbx",
	[HNS_ROCE_DFX_MBX_EVENT_CNT] = "mbx_event",
	[HNS_ROCE_DFX_QP_CREATE_ERR_CNT] = "qp_create_err",
	[HNS_ROCE_DFX_QP_MODIFY_ERR_CNT] = "qp_modify_err",
	[HNS_ROCE_DFX_CQ_CREATE_ERR_CNT] = "cq_create_err",
	[HNS_ROCE_DFX_CQ_MODIFY_ERR_CNT] = "cq_modify_err",
	[HNS_ROCE_DFX_SRQ_CREATE_ERR_CNT] = "srq_create_err",
	[HNS_ROCE_DFX_SRQ_MODIFY_ERR_CNT] = "srq_modify_err",
	[HNS_ROCE_DFX_XRCD_ALLOC_ERR_CNT] = "xrcd_alloc_err",
	[HNS_ROCE_DFX_MR_REG_ERR_CNT] = "mr_reg_err",
	[HNS_ROCE_DFX_MR_REREG_ERR_CNT] = "mr_rereg_err",
	[HNS_ROCE_DFX_AH_CREATE_ERR_CNT] = "ah_create_err",
	[HNS_ROCE_DFX_MMAP_ERR_CNT] = "mmap_err",
	[HNS_ROCE_DFX_UCTX_ALLOC_ERR_CNT] = "uctx_alloc_err",
};

static int sw_stat_debugfs_show(struct seq_file *file, void *offset)
{
	struct hns_roce_dev *hr_dev = file->private;
	int i;

	for (i = 0; i < HNS_ROCE_DFX_CNT_TOTAL; i++)
		seq_printf(file, "%-20s --- %lld\n", sw_stat_info[i],
			   atomic64_read(&hr_dev->dfx_cnt[i]));

	return 0;
}

static void create_sw_stat_debugfs(struct hns_roce_dev *hr_dev,
				   struct dentry *parent)
{
	struct hns_sw_stat_debugfs *dbgfs = &hr_dev->dbgfs.sw_stat_root;

	dbgfs->sw_stat.read = sw_stat_debugfs_show;
	dbgfs->sw_stat.data = hr_dev;

	dbgfs->root = debugfs_create_dir("sw_stat", parent);
	debugfs_create_file("sw_stat", 0400, dbgfs->root, &dbgfs->sw_stat,
			    &hns_debugfs_seqfile_fops);
}

#define __HNS_SCC_ATTR(_name, _type, _offset, _size, _min, _max) {	\
	.name = _name,							\
	.algo_type = _type,						\
	.offset = _offset,						\
	.size = _size,							\
	.min = _min,							\
	.max = _max,							\
}

#define HNS_DCQCN_CC_ATTR_RW(_name, NAME)				\
	__HNS_SCC_ATTR(_name, HNS_ROCE_SCC_ALGO_DCQCN,			\
			HNS_ROCE_DCQCN_##NAME##_OFS,			\
			HNS_ROCE_DCQCN_##NAME##_SZ,			\
			0, HNS_ROCE_DCQCN_##NAME##_MAX)

#define HNS_LDCP_CC_ATTR_RW(_name, NAME)				\
	__HNS_SCC_ATTR(_name, HNS_ROCE_SCC_ALGO_LDCP,			\
			HNS_ROCE_LDCP_##NAME##_OFS,			\
			HNS_ROCE_LDCP_##NAME##_SZ,			\
			0, HNS_ROCE_LDCP_##NAME##_MAX)

#define HNS_HC3_CC_ATTR_RW(_name, NAME)				\
	__HNS_SCC_ATTR(_name, HNS_ROCE_SCC_ALGO_HC3,			\
			HNS_ROCE_HC3_##NAME##_OFS,			\
			HNS_ROCE_HC3_##NAME##_SZ,			\
			HNS_ROCE_HC3_##NAME##_MIN,			\
			HNS_ROCE_HC3_##NAME##_MAX)

#define HNS_DIP_CC_ATTR_RW(_name, NAME)				\
	__HNS_SCC_ATTR(_name, HNS_ROCE_SCC_ALGO_DIP,			\
			HNS_ROCE_DIP_##NAME##_OFS,			\
			HNS_ROCE_DIP_##NAME##_SZ,			\
			0, HNS_ROCE_DIP_##NAME##_MAX)

Annotation

Implementation Notes