You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
232 lines
7.3 KiB
232 lines
7.3 KiB
/*
|
|
* 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);
|
|
}
|
|
|
|
int
|
|
minstrel_stats_release(struct inode *inode, struct file *file)
|
|
{
|
|
kfree(file->private_data);
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|