1 /* Broadcom NetXtreme-C/E network driver.
3 * Copyright (c) 2017-2018 Broadcom Limited
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
10 #include <linux/debugfs.h>
11 #include <linux/module.h>
12 #include <linux/pci.h>
14 #include <linux/dim.h>
16 #include "bnxt_debugfs.h"
18 static struct dentry *bnxt_debug_mnt;
20 static ssize_t debugfs_dim_read(struct file *filep,
22 size_t count, loff_t *ppos)
24 struct dim *dim = filep->private_data;
32 buf = kasprintf(GFP_KERNEL,
37 "steps_right = %d\n" \
49 if (count < strlen(buf)) {
53 len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
58 static const struct file_operations debugfs_dim_fops = {
61 .read = debugfs_dim_read,
64 static struct dentry *debugfs_dim_ring_init(struct dim *dim, int ring_idx,
67 static char qname[16];
69 snprintf(qname, 10, "%d", ring_idx);
70 return debugfs_create_file(qname, 0600, dd,
71 dim, &debugfs_dim_fops);
74 void bnxt_debug_dev_init(struct bnxt *bp)
76 const char *pname = pci_name(bp->pdev);
80 bp->debugfs_pdev = debugfs_create_dir(pname, bnxt_debug_mnt);
81 if (bp->debugfs_pdev) {
82 pdevf = debugfs_create_dir("dim", bp->debugfs_pdev);
84 pr_err("failed to create debugfs entry %s/dim\n",
88 bp->debugfs_dim = pdevf;
89 /* create files for each rx ring */
90 for (i = 0; i < bp->cp_nr_rings; i++) {
91 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
93 if (cpr && bp->bnapi[i]->rx_ring) {
94 pdevf = debugfs_dim_ring_init(&cpr->dim, i,
97 pr_err("failed to create debugfs entry %s/dim/%d\n",
102 pr_err("failed to create debugfs entry %s\n", pname);
106 void bnxt_debug_dev_exit(struct bnxt *bp)
109 debugfs_remove_recursive(bp->debugfs_pdev);
110 bp->debugfs_pdev = NULL;
114 void bnxt_debug_init(void)
116 bnxt_debug_mnt = debugfs_create_dir("bnxt_en", NULL);
118 pr_err("failed to init bnxt_en debugfs\n");
121 void bnxt_debug_exit(void)
123 debugfs_remove_recursive(bnxt_debug_mnt);