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_lseek 26}; 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