// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2020 Intel Corporation
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#include <linux/debugfs.h>
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#include "ufs-debugfs.h"
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#include "ufshcd.h"
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static struct dentry *ufs_debugfs_root;
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void __init ufs_debugfs_init(void)
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{
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ufs_debugfs_root = debugfs_create_dir("ufshcd", NULL);
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}
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void __exit ufs_debugfs_exit(void)
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{
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debugfs_remove_recursive(ufs_debugfs_root);
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}
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static int ufs_debugfs_stats_show(struct seq_file *s, void *data)
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{
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struct ufs_hba *hba = s->private;
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struct ufs_event_hist *e = hba->ufs_stats.event;
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#define PRT(fmt, typ) \
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seq_printf(s, fmt, e[UFS_EVT_ ## typ].cnt)
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PRT("PHY Adapter Layer errors (except LINERESET): %llu\n", PA_ERR);
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PRT("Data Link Layer errors: %llu\n", DL_ERR);
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PRT("Network Layer errors: %llu\n", NL_ERR);
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PRT("Transport Layer errors: %llu\n", TL_ERR);
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PRT("Generic DME errors: %llu\n", DME_ERR);
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PRT("Auto-hibernate errors: %llu\n", AUTO_HIBERN8_ERR);
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PRT("IS Fatal errors (CEFES, SBFES, HCFES, DFES): %llu\n", FATAL_ERR);
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PRT("DME Link Startup errors: %llu\n", LINK_STARTUP_FAIL);
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PRT("PM Resume errors: %llu\n", RESUME_ERR);
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PRT("PM Suspend errors : %llu\n", SUSPEND_ERR);
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PRT("Logical Unit Resets: %llu\n", DEV_RESET);
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PRT("Host Resets: %llu\n", HOST_RESET);
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PRT("SCSI command aborts: %llu\n", ABORT);
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#undef PRT
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(ufs_debugfs_stats);
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void ufs_debugfs_hba_init(struct ufs_hba *hba)
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{
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hba->debugfs_root = debugfs_create_dir(dev_name(hba->dev), ufs_debugfs_root);
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debugfs_create_file("stats", 0400, hba->debugfs_root, hba, &ufs_debugfs_stats_fops);
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}
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void ufs_debugfs_hba_exit(struct ufs_hba *hba)
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{
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debugfs_remove_recursive(hba->debugfs_root);
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}
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