| 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 | #include <linux/pci.h> |
| 9 | |
| 10 | #include "hns_roce_device.h" |
| 11 | |
| 12 | static struct dentry *hns_roce_dbgfs_root; |
| 13 | |
| 14 | static int hns_debugfs_seqfile_open(struct inode *inode, struct file *f) |
| 15 | { |
| 16 | struct hns_debugfs_seqfile *seqfile = inode->i_private; |
| 17 | |
| 18 | return single_open(f, seqfile->read, seqfile->data); |
| 19 | } |
| 20 | |
| 21 | static const struct file_operations hns_debugfs_seqfile_fops = { |
| 22 | .owner = THIS_MODULE, |
| 23 | .open = hns_debugfs_seqfile_open, |
| 24 | .release = single_release, |
| 25 | .read = seq_read, |
| 26 | .llseek = seq_lseek |
| 27 | }; |
| 28 | |
| 29 | static void init_debugfs_seqfile(struct hns_debugfs_seqfile *seq, |
| 30 | const char *name, struct dentry *parent, |
| 31 | int (*read_fn)(struct seq_file *, void *), |
| 32 | void *data) |
| 33 | { |
| 34 | debugfs_create_file(name, 0400, parent, seq, &hns_debugfs_seqfile_fops); |
| 35 | |
| 36 | seq->read = read_fn; |
| 37 | seq->data = data; |
| 38 | } |
| 39 | |
| 40 | static const char * const sw_stat_info[] = { |
| 41 | [HNS_ROCE_DFX_AEQE_CNT] = "aeqe" , |
| 42 | [HNS_ROCE_DFX_CEQE_CNT] = "ceqe" , |
| 43 | [HNS_ROCE_DFX_CMDS_CNT] = "cmds" , |
| 44 | [HNS_ROCE_DFX_CMDS_ERR_CNT] = "cmds_err" , |
| 45 | [HNS_ROCE_DFX_MBX_POSTED_CNT] = "posted_mbx" , |
| 46 | [HNS_ROCE_DFX_MBX_POLLED_CNT] = "polled_mbx" , |
| 47 | [HNS_ROCE_DFX_MBX_EVENT_CNT] = "mbx_event" , |
| 48 | [HNS_ROCE_DFX_QP_CREATE_ERR_CNT] = "qp_create_err" , |
| 49 | [HNS_ROCE_DFX_QP_MODIFY_ERR_CNT] = "qp_modify_err" , |
| 50 | [HNS_ROCE_DFX_CQ_CREATE_ERR_CNT] = "cq_create_err" , |
| 51 | [HNS_ROCE_DFX_CQ_MODIFY_ERR_CNT] = "cq_modify_err" , |
| 52 | [HNS_ROCE_DFX_SRQ_CREATE_ERR_CNT] = "srq_create_err" , |
| 53 | [HNS_ROCE_DFX_SRQ_MODIFY_ERR_CNT] = "srq_modify_err" , |
| 54 | [HNS_ROCE_DFX_XRCD_ALLOC_ERR_CNT] = "xrcd_alloc_err" , |
| 55 | [HNS_ROCE_DFX_MR_REG_ERR_CNT] = "mr_reg_err" , |
| 56 | [HNS_ROCE_DFX_MR_REREG_ERR_CNT] = "mr_rereg_err" , |
| 57 | [HNS_ROCE_DFX_AH_CREATE_ERR_CNT] = "ah_create_err" , |
| 58 | [HNS_ROCE_DFX_MMAP_ERR_CNT] = "mmap_err" , |
| 59 | [HNS_ROCE_DFX_UCTX_ALLOC_ERR_CNT] = "uctx_alloc_err" , |
| 60 | }; |
| 61 | |
| 62 | static int sw_stat_debugfs_show(struct seq_file *file, void *offset) |
| 63 | { |
| 64 | struct hns_roce_dev *hr_dev = file->private; |
| 65 | int i; |
| 66 | |
| 67 | for (i = 0; i < HNS_ROCE_DFX_CNT_TOTAL; i++) |
| 68 | seq_printf(m: file, fmt: "%-20s --- %lld\n" , sw_stat_info[i], |
| 69 | atomic64_read(v: &hr_dev->dfx_cnt[i])); |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | static void create_sw_stat_debugfs(struct hns_roce_dev *hr_dev, |
| 75 | struct dentry *parent) |
| 76 | { |
| 77 | struct hns_sw_stat_debugfs *dbgfs = &hr_dev->dbgfs.sw_stat_root; |
| 78 | |
| 79 | dbgfs->root = debugfs_create_dir(name: "sw_stat" , parent); |
| 80 | |
| 81 | init_debugfs_seqfile(seq: &dbgfs->sw_stat, name: "sw_stat" , parent: dbgfs->root, |
| 82 | read_fn: sw_stat_debugfs_show, data: hr_dev); |
| 83 | } |
| 84 | |
| 85 | /* debugfs for device */ |
| 86 | void hns_roce_register_debugfs(struct hns_roce_dev *hr_dev) |
| 87 | { |
| 88 | struct hns_roce_dev_debugfs *dbgfs = &hr_dev->dbgfs; |
| 89 | |
| 90 | dbgfs->root = debugfs_create_dir(name: pci_name(pdev: hr_dev->pci_dev), |
| 91 | parent: hns_roce_dbgfs_root); |
| 92 | |
| 93 | create_sw_stat_debugfs(hr_dev, parent: dbgfs->root); |
| 94 | } |
| 95 | |
| 96 | void hns_roce_unregister_debugfs(struct hns_roce_dev *hr_dev) |
| 97 | { |
| 98 | debugfs_remove_recursive(dentry: hr_dev->dbgfs.root); |
| 99 | } |
| 100 | |
| 101 | /* debugfs for hns module */ |
| 102 | void hns_roce_init_debugfs(void) |
| 103 | { |
| 104 | hns_roce_dbgfs_root = debugfs_create_dir(name: "hns_roce" , NULL); |
| 105 | } |
| 106 | |
| 107 | void hns_roce_cleanup_debugfs(void) |
| 108 | { |
| 109 | debugfs_remove_recursive(dentry: hns_roce_dbgfs_root); |
| 110 | hns_roce_dbgfs_root = NULL; |
| 111 | } |
| 112 | |