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1// SPDX-License-Identifier: GPL-2.0+2/*3 * Copyright (c) 2023 Hisilicon Limited.4 */5 6#include <linux/debugfs.h>7#include <linux/device.h>8 9#include "hns_roce_device.h"10 11static struct dentry *hns_roce_dbgfs_root;12 13static int hns_debugfs_seqfile_open(struct inode *inode, struct file *f)14{15 struct hns_debugfs_seqfile *seqfile = inode->i_private;16 17 return single_open(f, seqfile->read, seqfile->data);18}19 20static const struct file_operations hns_debugfs_seqfile_fops = {21 .owner = THIS_MODULE,22 .open = hns_debugfs_seqfile_open,23 .release = single_release,24 .read = seq_read,25 .llseek = seq_lseek26};27 28static void init_debugfs_seqfile(struct hns_debugfs_seqfile *seq,29 const char *name, struct dentry *parent,30 int (*read_fn)(struct seq_file *, void *),31 void *data)32{33 debugfs_create_file(name, 0400, parent, seq, &hns_debugfs_seqfile_fops);34 35 seq->read = read_fn;36 seq->data = data;37}38 39static const char * const sw_stat_info[] = {40 [HNS_ROCE_DFX_AEQE_CNT] = "aeqe",41 [HNS_ROCE_DFX_CEQE_CNT] = "ceqe",42 [HNS_ROCE_DFX_CMDS_CNT] = "cmds",43 [HNS_ROCE_DFX_CMDS_ERR_CNT] = "cmds_err",44 [HNS_ROCE_DFX_MBX_POSTED_CNT] = "posted_mbx",45 [HNS_ROCE_DFX_MBX_POLLED_CNT] = "polled_mbx",46 [HNS_ROCE_DFX_MBX_EVENT_CNT] = "mbx_event",47 [HNS_ROCE_DFX_QP_CREATE_ERR_CNT] = "qp_create_err",48 [HNS_ROCE_DFX_QP_MODIFY_ERR_CNT] = "qp_modify_err",49 [HNS_ROCE_DFX_CQ_CREATE_ERR_CNT] = "cq_create_err",50 [HNS_ROCE_DFX_CQ_MODIFY_ERR_CNT] = "cq_modify_err",51 [HNS_ROCE_DFX_SRQ_CREATE_ERR_CNT] = "srq_create_err",52 [HNS_ROCE_DFX_SRQ_MODIFY_ERR_CNT] = "srq_modify_err",53 [HNS_ROCE_DFX_XRCD_ALLOC_ERR_CNT] = "xrcd_alloc_err",54 [HNS_ROCE_DFX_MR_REG_ERR_CNT] = "mr_reg_err",55 [HNS_ROCE_DFX_MR_REREG_ERR_CNT] = "mr_rereg_err",56 [HNS_ROCE_DFX_AH_CREATE_ERR_CNT] = "ah_create_err",57 [HNS_ROCE_DFX_MMAP_ERR_CNT] = "mmap_err",58 [HNS_ROCE_DFX_UCTX_ALLOC_ERR_CNT] = "uctx_alloc_err",59};60 61static int sw_stat_debugfs_show(struct seq_file *file, void *offset)62{63 struct hns_roce_dev *hr_dev = file->private;64 int i;65 66 for (i = 0; i < HNS_ROCE_DFX_CNT_TOTAL; i++)67 seq_printf(file, "%-20s --- %lld\n", sw_stat_info[i],68 atomic64_read(&hr_dev->dfx_cnt[i]));69 70 return 0;71}72 73static void create_sw_stat_debugfs(struct hns_roce_dev *hr_dev,74 struct dentry *parent)75{76 struct hns_sw_stat_debugfs *dbgfs = &hr_dev->dbgfs.sw_stat_root;77 78 dbgfs->root = debugfs_create_dir("sw_stat", parent);79 80 init_debugfs_seqfile(&dbgfs->sw_stat, "sw_stat", dbgfs->root,81 sw_stat_debugfs_show, hr_dev);82}83 84/* debugfs for device */85void hns_roce_register_debugfs(struct hns_roce_dev *hr_dev)86{87 struct hns_roce_dev_debugfs *dbgfs = &hr_dev->dbgfs;88 89 dbgfs->root = debugfs_create_dir(dev_name(&hr_dev->ib_dev.dev),90 hns_roce_dbgfs_root);91 92 create_sw_stat_debugfs(hr_dev, dbgfs->root);93}94 95void hns_roce_unregister_debugfs(struct hns_roce_dev *hr_dev)96{97 debugfs_remove_recursive(hr_dev->dbgfs.root);98}99 100/* debugfs for hns module */101void hns_roce_init_debugfs(void)102{103 hns_roce_dbgfs_root = debugfs_create_dir("hns_roce", NULL);104}105 106void hns_roce_cleanup_debugfs(void)107{108 debugfs_remove_recursive(hns_roce_dbgfs_root);109 hns_roce_dbgfs_root = NULL;110}111