Release 4.14 net/mac80211/rc80211_minstrel_debugfs.c
/*
* Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Based on minstrel.c:
* Copyright (C) 2005-2007 Derek Smithies <derek@indranet.co.nz>
* Sponsored by Indranet Technologies Ltd
*
* Based on sample.c:
* Copyright (c) 2005 John Bicket
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*/
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/debugfs.h>
#include <linux/ieee80211.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <net/mac80211.h>
#include "rc80211_minstrel.h"
ssize_t
minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos)
{
struct minstrel_debugfs_info *ms;
ms = file->private_data;
return simple_read_from_buffer(buf, len, ppos, ms->buf, ms->len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Huehn | 51 | 100.00% | 1 | 100.00% |
| Total | 51 | 100.00% | 1 | 100.00% |
int
minstrel_stats_release(struct inode *inode, struct file *file)
{
kfree(file->private_data);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Huehn | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
int
minstrel_stats_open(struct inode *inode, struct file *file)
{
struct minstrel_sta_info *mi = inode->i_private;
struct minstrel_debugfs_info *ms;
unsigned int i, tp_max, tp_avg, eprob;
char *p;
ms = kmalloc(2048, GFP_KERNEL);
if (!ms)
return -ENOMEM;
file->private_data = ms;
p = ms->buf;
p += sprintf(p, "\n");
p += sprintf(p,
"best __________rate_________ ________statistics________ ____last_____ ______sum-of________\n");
p += sprintf(p,
"rate [name idx airtime max_tp] [avg(tp) avg(prob) sd(prob)] [retry|suc|att] [#success | #attempts]\n");
for (i = 0; i < mi->n_rates; i++) {
struct minstrel_rate *mr = &mi->r[i];
struct minstrel_rate_stats *mrs = &mi->r[i].stats;
unsigned int prob_ewmsd;
*(p++) = (i == mi->max_tp_rate[0]) ? 'A' : ' ';
*(p++) = (i == mi->max_tp_rate[1]) ? 'B' : ' ';
*(p++) = (i == mi->max_tp_rate[2]) ? 'C' : ' ';
*(p++) = (i == mi->max_tp_rate[3]) ? 'D' : ' ';
*(p++) = (i == mi->max_prob_rate) ? 'P' : ' ';
p += sprintf(p, " %3u%s ", mr->bitrate / 2,
(mr->bitrate & 1 ? ".5" : " "));
p += sprintf(p, "%3u ", i);
p += sprintf(p, "%6u ", mr->perfect_tx_time);
tp_max = minstrel_get_tp_avg(mr, MINSTREL_FRAC(100,100));
tp_avg = minstrel_get_tp_avg(mr, mrs->prob_ewma);
eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
prob_ewmsd = minstrel_get_ewmsd10(mrs);
p += sprintf(p, "%4u.%1u %4u.%1u %3u.%1u %3u.%1u"
" %3u %3u %-3u "
"%9llu %-9llu\n",
tp_max / 10, tp_max % 10,
tp_avg / 10, tp_avg % 10,
eprob / 10, eprob % 10,
prob_ewmsd / 10, prob_ewmsd % 10,
mrs->retry_count,
mrs->last_success,
mrs->last_attempts,
(unsigned long long)mrs->succ_hist,
(unsigned long long)mrs->att_hist);
}
p += sprintf(p, "\nTotal packet count:: ideal %d "
"lookaround %d\n\n",
mi->total_packets - mi->sample_packets,
mi->sample_packets);
ms->len = p - ms->buf;
WARN_ON(ms->len + sizeof(*ms) > 2048);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Felix Fietkau | 270 | 57.69% | 4 | 26.67% |
| Thomas Huehn | 171 | 36.54% | 8 | 53.33% |
| Karl Beldan | 16 | 3.42% | 1 | 6.67% |
| John W. Linville | 10 | 2.14% | 1 | 6.67% |
| Johannes Berg | 1 | 0.21% | 1 | 6.67% |
| Total | 468 | 100.00% | 15 | 100.00% |
static const struct file_operations minstrel_stat_fops = {
.owner = THIS_MODULE,
.open = minstrel_stats_open,
.read = minstrel_stats_read,
.release = minstrel_stats_release,
.llseek = default_llseek,
};
int
minstrel_stats_csv_open(struct inode *inode, struct file *file)
{
struct minstrel_sta_info *mi = inode->i_private;
struct minstrel_debugfs_info *ms;
unsigned int i, tp_max, tp_avg, eprob;
char *p;
ms = kmalloc(2048, GFP_KERNEL);
if (!ms)
return -ENOMEM;
file->private_data = ms;
p = ms->buf;
for (i = 0; i < mi->n_rates; i++) {
struct minstrel_rate *mr = &mi->r[i];
struct minstrel_rate_stats *mrs = &mi->r[i].stats;
unsigned int prob_ewmsd;
p += sprintf(p, "%s" ,((i == mi->max_tp_rate[0]) ? "A" : ""));
p += sprintf(p, "%s" ,((i == mi->max_tp_rate[1]) ? "B" : ""));
p += sprintf(p, "%s" ,((i == mi->max_tp_rate[2]) ? "C" : ""));
p += sprintf(p, "%s" ,((i == mi->max_tp_rate[3]) ? "D" : ""));
p += sprintf(p, "%s" ,((i == mi->max_prob_rate) ? "P" : ""));
p += sprintf(p, ",%u%s", mr->bitrate / 2,
(mr->bitrate & 1 ? ".5," : ","));
p += sprintf(p, "%u,", i);
p += sprintf(p, "%u,",mr->perfect_tx_time);
tp_max = minstrel_get_tp_avg(mr, MINSTREL_FRAC(100,100));
tp_avg = minstrel_get_tp_avg(mr, mrs->prob_ewma);
eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
prob_ewmsd = minstrel_get_ewmsd10(mrs);
p += sprintf(p, "%u.%u,%u.%u,%u.%u,%u.%u,%u,%u,%u,"
"%llu,%llu,%d,%d\n",
tp_max / 10, tp_max % 10,
tp_avg / 10, tp_avg % 10,
eprob / 10, eprob % 10,
prob_ewmsd / 10, prob_ewmsd % 10,
mrs->retry_count,
mrs->last_success,
mrs->last_attempts,
(unsigned long long)mrs->succ_hist,
(unsigned long long)mrs->att_hist,
mi->total_packets - mi->sample_packets,
mi->sample_packets);
}
ms->len = p - ms->buf;
WARN_ON(ms->len + sizeof(*ms) > 2048);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Huehn | 425 | 93.41% | 5 | 62.50% |
| Felix Fietkau | 30 | 6.59% | 3 | 37.50% |
| Total | 455 | 100.00% | 8 | 100.00% |
static const struct file_operations minstrel_stat_csv_fops = {
.owner = THIS_MODULE,
.open = minstrel_stats_csv_open,
.read = minstrel_stats_read,
.release = minstrel_stats_release,
.llseek = default_llseek,
};
void
minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir)
{
struct minstrel_sta_info *mi = priv_sta;
mi->dbg_stats = debugfs_create_file("rc_stats", S_IRUGO, dir, mi,
&minstrel_stat_fops);
mi->dbg_stats_csv = debugfs_create_file("rc_stats_csv", S_IRUGO, dir,
mi, &minstrel_stat_csv_fops);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Huehn | 61 | 100.00% | 1 | 100.00% |
| Total | 61 | 100.00% | 1 | 100.00% |
void
minstrel_remove_sta_debugfs(void *priv, void *priv_sta)
{
struct minstrel_sta_info *mi = priv_sta;
debugfs_remove(mi->dbg_stats);
debugfs_remove(mi->dbg_stats_csv);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Huehn | 31 | 91.18% | 1 | 50.00% |
| Felix Fietkau | 3 | 8.82% | 1 | 50.00% |
| Total | 34 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Huehn | 797 | 67.09% | 9 | 45.00% |
| Felix Fietkau | 352 | 29.63% | 4 | 20.00% |
| Karl Beldan | 16 | 1.35% | 1 | 5.00% |
| John W. Linville | 10 | 0.84% | 1 | 5.00% |
| Arnd Bergmann | 5 | 0.42% | 1 | 5.00% |
| Tejun Heo | 3 | 0.25% | 1 | 5.00% |
| Paul Gortmaker | 3 | 0.25% | 1 | 5.00% |
| Stephen Hemminger | 1 | 0.08% | 1 | 5.00% |
| Johannes Berg | 1 | 0.08% | 1 | 5.00% |
| Total | 1188 | 100.00% | 20 | 100.00% |
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