eb7854d63d
Support SW stats with debugfs. Query output: $ cat /sys/kernel/debug/hns_roce/hns_0/sw_stat/sw_stat aeqe --- 3341 ceqe --- 0 cmds --- 6764 cmds_err --- 0 posted_mbx --- 3344 polled_mbx --- 3 mbx_event --- 3341 qp_create_err --- 0 qp_modify_err --- 0 cq_create_err --- 0 cq_modify_err --- 0 srq_create_err --- 0 srq_modify_err --- 0 xrcd_alloc_err --- 0 mr_reg_err --- 0 mr_rereg_err --- 0 ah_create_err --- 0 mmap_err --- 0 uctx_alloc_err --- 0 Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com> Signed-off-by: Chengchang Tang <tangchengchang@huawei.com> Link: https://lore.kernel.org/r/20231114123449.1106162-4-huangjunxian6@hisilicon.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
110 lines
3 KiB
C
110 lines
3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2023 Hisilicon Limited.
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*/
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#include <linux/debugfs.h>
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#include <linux/device.h>
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#include "hns_roce_device.h"
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static struct dentry *hns_roce_dbgfs_root;
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static int hns_debugfs_seqfile_open(struct inode *inode, struct file *f)
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{
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struct hns_debugfs_seqfile *seqfile = inode->i_private;
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return single_open(f, seqfile->read, seqfile->data);
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}
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static const struct file_operations hns_debugfs_seqfile_fops = {
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.owner = THIS_MODULE,
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.open = hns_debugfs_seqfile_open,
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.release = single_release,
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.read = seq_read,
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.llseek = seq_lseek
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};
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static void init_debugfs_seqfile(struct hns_debugfs_seqfile *seq,
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const char *name, struct dentry *parent,
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int (*read_fn)(struct seq_file *, void *),
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void *data)
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{
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debugfs_create_file(name, 0400, parent, seq, &hns_debugfs_seqfile_fops);
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seq->read = read_fn;
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seq->data = data;
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}
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static const char * const sw_stat_info[] = {
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[HNS_ROCE_DFX_AEQE_CNT] = "aeqe",
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[HNS_ROCE_DFX_CEQE_CNT] = "ceqe",
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[HNS_ROCE_DFX_CMDS_CNT] = "cmds",
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[HNS_ROCE_DFX_CMDS_ERR_CNT] = "cmds_err",
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[HNS_ROCE_DFX_MBX_POSTED_CNT] = "posted_mbx",
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[HNS_ROCE_DFX_MBX_POLLED_CNT] = "polled_mbx",
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[HNS_ROCE_DFX_MBX_EVENT_CNT] = "mbx_event",
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[HNS_ROCE_DFX_QP_CREATE_ERR_CNT] = "qp_create_err",
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[HNS_ROCE_DFX_QP_MODIFY_ERR_CNT] = "qp_modify_err",
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[HNS_ROCE_DFX_CQ_CREATE_ERR_CNT] = "cq_create_err",
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[HNS_ROCE_DFX_CQ_MODIFY_ERR_CNT] = "cq_modify_err",
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[HNS_ROCE_DFX_SRQ_CREATE_ERR_CNT] = "srq_create_err",
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[HNS_ROCE_DFX_SRQ_MODIFY_ERR_CNT] = "srq_modify_err",
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[HNS_ROCE_DFX_XRCD_ALLOC_ERR_CNT] = "xrcd_alloc_err",
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[HNS_ROCE_DFX_MR_REG_ERR_CNT] = "mr_reg_err",
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[HNS_ROCE_DFX_MR_REREG_ERR_CNT] = "mr_rereg_err",
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[HNS_ROCE_DFX_AH_CREATE_ERR_CNT] = "ah_create_err",
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[HNS_ROCE_DFX_MMAP_ERR_CNT] = "mmap_err",
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[HNS_ROCE_DFX_UCTX_ALLOC_ERR_CNT] = "uctx_alloc_err",
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};
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static int sw_stat_debugfs_show(struct seq_file *file, void *offset)
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{
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struct hns_roce_dev *hr_dev = file->private;
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int i;
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for (i = 0; i < HNS_ROCE_DFX_CNT_TOTAL; i++)
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seq_printf(file, "%-20s --- %lld\n", sw_stat_info[i],
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atomic64_read(&hr_dev->dfx_cnt[i]));
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return 0;
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}
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static void create_sw_stat_debugfs(struct hns_roce_dev *hr_dev,
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struct dentry *parent)
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{
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struct hns_sw_stat_debugfs *dbgfs = &hr_dev->dbgfs.sw_stat_root;
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dbgfs->root = debugfs_create_dir("sw_stat", parent);
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init_debugfs_seqfile(&dbgfs->sw_stat, "sw_stat", dbgfs->root,
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sw_stat_debugfs_show, hr_dev);
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}
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/* debugfs for device */
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void hns_roce_register_debugfs(struct hns_roce_dev *hr_dev)
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{
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struct hns_roce_dev_debugfs *dbgfs = &hr_dev->dbgfs;
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dbgfs->root = debugfs_create_dir(dev_name(&hr_dev->ib_dev.dev),
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hns_roce_dbgfs_root);
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create_sw_stat_debugfs(hr_dev, dbgfs->root);
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}
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void hns_roce_unregister_debugfs(struct hns_roce_dev *hr_dev)
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{
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debugfs_remove_recursive(hr_dev->dbgfs.root);
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}
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/* debugfs for hns module */
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void hns_roce_init_debugfs(void)
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{
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hns_roce_dbgfs_root = debugfs_create_dir("hns_roce", NULL);
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}
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void hns_roce_cleanup_debugfs(void)
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{
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debugfs_remove_recursive(hns_roce_dbgfs_root);
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hns_roce_dbgfs_root = NULL;
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}
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