forked from luck/tmp_suning_uos_patched
1109dc392e
This field is redundant, because it is simply last success divided by last attempt count. Removing it from the rate stats struct saves about 1.2 KiB per HT station. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
316 lines
8.7 KiB
C
316 lines
8.7 KiB
C
/*
|
|
* Copyright (C) 2010 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.
|
|
*/
|
|
#include <linux/netdevice.h>
|
|
#include <linux/types.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/debugfs.h>
|
|
#include <linux/ieee80211.h>
|
|
#include <linux/export.h>
|
|
#include <net/mac80211.h>
|
|
#include "rc80211_minstrel.h"
|
|
#include "rc80211_minstrel_ht.h"
|
|
|
|
static char *
|
|
minstrel_ht_stats_dump(struct minstrel_ht_sta *mi, int i, char *p)
|
|
{
|
|
const struct mcs_group *mg;
|
|
unsigned int j, tp_max, tp_avg, eprob, tx_time;
|
|
char htmode = '2';
|
|
char gimode = 'L';
|
|
u32 gflags;
|
|
|
|
if (!mi->supported[i])
|
|
return p;
|
|
|
|
mg = &minstrel_mcs_groups[i];
|
|
gflags = mg->flags;
|
|
|
|
if (gflags & IEEE80211_TX_RC_40_MHZ_WIDTH)
|
|
htmode = '4';
|
|
else if (gflags & IEEE80211_TX_RC_80_MHZ_WIDTH)
|
|
htmode = '8';
|
|
if (gflags & IEEE80211_TX_RC_SHORT_GI)
|
|
gimode = 'S';
|
|
|
|
for (j = 0; j < MCS_GROUP_RATES; j++) {
|
|
struct minstrel_rate_stats *mrs = &mi->groups[i].rates[j];
|
|
static const int bitrates[4] = { 10, 20, 55, 110 };
|
|
int idx = i * MCS_GROUP_RATES + j;
|
|
|
|
if (!(mi->supported[i] & BIT(j)))
|
|
continue;
|
|
|
|
if (gflags & IEEE80211_TX_RC_MCS) {
|
|
p += sprintf(p, "HT%c0 ", htmode);
|
|
p += sprintf(p, "%cGI ", gimode);
|
|
p += sprintf(p, "%d ", mg->streams);
|
|
} else if (gflags & IEEE80211_TX_RC_VHT_MCS) {
|
|
p += sprintf(p, "VHT%c0 ", htmode);
|
|
p += sprintf(p, "%cGI ", gimode);
|
|
p += sprintf(p, "%d ", mg->streams);
|
|
} else {
|
|
p += sprintf(p, "CCK ");
|
|
p += sprintf(p, "%cP ", j < 4 ? 'L' : 'S');
|
|
p += sprintf(p, "1 ");
|
|
}
|
|
|
|
*(p++) = (idx == mi->max_tp_rate[0]) ? 'A' : ' ';
|
|
*(p++) = (idx == mi->max_tp_rate[1]) ? 'B' : ' ';
|
|
*(p++) = (idx == mi->max_tp_rate[2]) ? 'C' : ' ';
|
|
*(p++) = (idx == mi->max_tp_rate[3]) ? 'D' : ' ';
|
|
*(p++) = (idx == mi->max_prob_rate) ? 'P' : ' ';
|
|
|
|
if (gflags & IEEE80211_TX_RC_MCS) {
|
|
p += sprintf(p, " MCS%-2u", (mg->streams - 1) * 8 + j);
|
|
} else if (gflags & IEEE80211_TX_RC_VHT_MCS) {
|
|
p += sprintf(p, " MCS%-1u/%1u", j, mg->streams);
|
|
} else {
|
|
int r = bitrates[j % 4];
|
|
|
|
p += sprintf(p, " %2u.%1uM", r / 10, r % 10);
|
|
}
|
|
|
|
p += sprintf(p, " %3u ", idx);
|
|
|
|
/* tx_time[rate(i)] in usec */
|
|
tx_time = DIV_ROUND_CLOSEST(mg->duration[j], 1000);
|
|
p += sprintf(p, "%6u ", tx_time);
|
|
|
|
tp_max = minstrel_ht_get_tp_avg(mi, i, j, MINSTREL_FRAC(100, 100));
|
|
tp_avg = minstrel_ht_get_tp_avg(mi, i, j, mrs->prob_ewma);
|
|
eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
|
|
|
|
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,
|
|
mrs->prob_ewmsd / 10, mrs->prob_ewmsd % 10,
|
|
mrs->retry_count,
|
|
mrs->last_success,
|
|
mrs->last_attempts,
|
|
(unsigned long long)mrs->succ_hist,
|
|
(unsigned long long)mrs->att_hist);
|
|
}
|
|
|
|
return p;
|
|
}
|
|
|
|
static int
|
|
minstrel_ht_stats_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct minstrel_ht_sta_priv *msp = inode->i_private;
|
|
struct minstrel_ht_sta *mi = &msp->ht;
|
|
struct minstrel_debugfs_info *ms;
|
|
unsigned int i;
|
|
int ret;
|
|
char *p;
|
|
|
|
if (!msp->is_ht) {
|
|
inode->i_private = &msp->legacy;
|
|
ret = minstrel_stats_open(inode, file);
|
|
inode->i_private = msp;
|
|
return ret;
|
|
}
|
|
|
|
ms = kmalloc(32768, 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,
|
|
"mode guard # rate [name idx airtime max_tp] [avg(tp) avg(prob) sd(prob)] [retry|suc|att] [#success | #attempts]\n");
|
|
|
|
p = minstrel_ht_stats_dump(mi, MINSTREL_CCK_GROUP, p);
|
|
for (i = 0; i < MINSTREL_CCK_GROUP; i++)
|
|
p = minstrel_ht_stats_dump(mi, i, p);
|
|
for (i++; i < ARRAY_SIZE(mi->groups); i++)
|
|
p = minstrel_ht_stats_dump(mi, i, p);
|
|
|
|
p += sprintf(p, "\nTotal packet count:: ideal %d "
|
|
"lookaround %d\n",
|
|
max(0, (int) mi->total_packets - (int) mi->sample_packets),
|
|
mi->sample_packets);
|
|
p += sprintf(p, "Average # of aggregated frames per A-MPDU: %d.%d\n",
|
|
MINSTREL_TRUNC(mi->avg_ampdu_len),
|
|
MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
|
|
ms->len = p - ms->buf;
|
|
WARN_ON(ms->len + sizeof(*ms) > 32768);
|
|
|
|
return nonseekable_open(inode, file);
|
|
}
|
|
|
|
static const struct file_operations minstrel_ht_stat_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = minstrel_ht_stats_open,
|
|
.read = minstrel_stats_read,
|
|
.release = minstrel_stats_release,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
static char *
|
|
minstrel_ht_stats_csv_dump(struct minstrel_ht_sta *mi, int i, char *p)
|
|
{
|
|
const struct mcs_group *mg;
|
|
unsigned int j, tp_max, tp_avg, eprob, tx_time;
|
|
char htmode = '2';
|
|
char gimode = 'L';
|
|
u32 gflags;
|
|
|
|
if (!mi->supported[i])
|
|
return p;
|
|
|
|
mg = &minstrel_mcs_groups[i];
|
|
gflags = mg->flags;
|
|
|
|
if (gflags & IEEE80211_TX_RC_40_MHZ_WIDTH)
|
|
htmode = '4';
|
|
else if (gflags & IEEE80211_TX_RC_80_MHZ_WIDTH)
|
|
htmode = '8';
|
|
if (gflags & IEEE80211_TX_RC_SHORT_GI)
|
|
gimode = 'S';
|
|
|
|
for (j = 0; j < MCS_GROUP_RATES; j++) {
|
|
struct minstrel_rate_stats *mrs = &mi->groups[i].rates[j];
|
|
static const int bitrates[4] = { 10, 20, 55, 110 };
|
|
int idx = i * MCS_GROUP_RATES + j;
|
|
|
|
if (!(mi->supported[i] & BIT(j)))
|
|
continue;
|
|
|
|
if (gflags & IEEE80211_TX_RC_MCS) {
|
|
p += sprintf(p, "HT%c0,", htmode);
|
|
p += sprintf(p, "%cGI,", gimode);
|
|
p += sprintf(p, "%d,", mg->streams);
|
|
} else if (gflags & IEEE80211_TX_RC_VHT_MCS) {
|
|
p += sprintf(p, "VHT%c0,", htmode);
|
|
p += sprintf(p, "%cGI,", gimode);
|
|
p += sprintf(p, "%d,", mg->streams);
|
|
} else {
|
|
p += sprintf(p, "CCK,");
|
|
p += sprintf(p, "%cP,", j < 4 ? 'L' : 'S');
|
|
p += sprintf(p, "1,");
|
|
}
|
|
|
|
p += sprintf(p, "%s" ,((idx == mi->max_tp_rate[0]) ? "A" : ""));
|
|
p += sprintf(p, "%s" ,((idx == mi->max_tp_rate[1]) ? "B" : ""));
|
|
p += sprintf(p, "%s" ,((idx == mi->max_tp_rate[2]) ? "C" : ""));
|
|
p += sprintf(p, "%s" ,((idx == mi->max_tp_rate[3]) ? "D" : ""));
|
|
p += sprintf(p, "%s" ,((idx == mi->max_prob_rate) ? "P" : ""));
|
|
|
|
if (gflags & IEEE80211_TX_RC_MCS) {
|
|
p += sprintf(p, ",MCS%-2u,", (mg->streams - 1) * 8 + j);
|
|
} else if (gflags & IEEE80211_TX_RC_VHT_MCS) {
|
|
p += sprintf(p, ",MCS%-1u/%1u,", j, mg->streams);
|
|
} else {
|
|
int r = bitrates[j % 4];
|
|
p += sprintf(p, ",%2u.%1uM,", r / 10, r % 10);
|
|
}
|
|
|
|
p += sprintf(p, "%u,", idx);
|
|
tx_time = DIV_ROUND_CLOSEST(mg->duration[j], 1000);
|
|
p += sprintf(p, "%u,", tx_time);
|
|
|
|
tp_max = minstrel_ht_get_tp_avg(mi, i, j, MINSTREL_FRAC(100, 100));
|
|
tp_avg = minstrel_ht_get_tp_avg(mi, i, j, mrs->prob_ewma);
|
|
eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
|
|
|
|
p += sprintf(p, "%u.%u,%u.%u,%u.%u,%u.%u,%u,%u,"
|
|
"%u,%llu,%llu,",
|
|
tp_max / 10, tp_max % 10,
|
|
tp_avg / 10, tp_avg % 10,
|
|
eprob / 10, eprob % 10,
|
|
mrs->prob_ewmsd / 10, mrs->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, "%d,%d,%d.%d\n",
|
|
max(0, (int) mi->total_packets -
|
|
(int) mi->sample_packets),
|
|
mi->sample_packets,
|
|
MINSTREL_TRUNC(mi->avg_ampdu_len),
|
|
MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
|
|
}
|
|
|
|
return p;
|
|
}
|
|
|
|
static int
|
|
minstrel_ht_stats_csv_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct minstrel_ht_sta_priv *msp = inode->i_private;
|
|
struct minstrel_ht_sta *mi = &msp->ht;
|
|
struct minstrel_debugfs_info *ms;
|
|
unsigned int i;
|
|
int ret;
|
|
char *p;
|
|
|
|
if (!msp->is_ht) {
|
|
inode->i_private = &msp->legacy;
|
|
ret = minstrel_stats_csv_open(inode, file);
|
|
inode->i_private = msp;
|
|
return ret;
|
|
}
|
|
|
|
ms = kmalloc(32768, GFP_KERNEL);
|
|
|
|
if (!ms)
|
|
return -ENOMEM;
|
|
|
|
file->private_data = ms;
|
|
|
|
p = ms->buf;
|
|
|
|
p = minstrel_ht_stats_csv_dump(mi, MINSTREL_CCK_GROUP, p);
|
|
for (i = 0; i < MINSTREL_CCK_GROUP; i++)
|
|
p = minstrel_ht_stats_csv_dump(mi, i, p);
|
|
for (i++; i < ARRAY_SIZE(mi->groups); i++)
|
|
p = minstrel_ht_stats_csv_dump(mi, i, p);
|
|
|
|
ms->len = p - ms->buf;
|
|
WARN_ON(ms->len + sizeof(*ms) > 32768);
|
|
|
|
return nonseekable_open(inode, file);
|
|
}
|
|
|
|
static const struct file_operations minstrel_ht_stat_csv_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = minstrel_ht_stats_csv_open,
|
|
.read = minstrel_stats_read,
|
|
.release = minstrel_stats_release,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
void
|
|
minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir)
|
|
{
|
|
struct minstrel_ht_sta_priv *msp = priv_sta;
|
|
|
|
msp->dbg_stats = debugfs_create_file("rc_stats", S_IRUGO, dir, msp,
|
|
&minstrel_ht_stat_fops);
|
|
msp->dbg_stats_csv = debugfs_create_file("rc_stats_csv", S_IRUGO,
|
|
dir, msp, &minstrel_ht_stat_csv_fops);
|
|
}
|
|
|
|
void
|
|
minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta)
|
|
{
|
|
struct minstrel_ht_sta_priv *msp = priv_sta;
|
|
|
|
debugfs_remove(msp->dbg_stats);
|
|
debugfs_remove(msp->dbg_stats_csv);
|
|
}
|