From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/net/mac80211/rc80211_minstrel_ht_debugfs.c | 321 ++++++++++++++++++++++ 1 file changed, 321 insertions(+) create mode 100644 kernel/net/mac80211/rc80211_minstrel_ht_debugfs.c (limited to 'kernel/net/mac80211/rc80211_minstrel_ht_debugfs.c') diff --git a/kernel/net/mac80211/rc80211_minstrel_ht_debugfs.c b/kernel/net/mac80211/rc80211_minstrel_ht_debugfs.c new file mode 100644 index 000000000..6822ce0f9 --- /dev/null +++ b/kernel/net/mac80211/rc80211_minstrel_ht_debugfs.c @@ -0,0 +1,321 @@ +/* + * Copyright (C) 2010 Felix Fietkau + * + * 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 +#include +#include +#include +#include +#include +#include +#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, prob, eprob, tx_time; + char htmode = '2'; + char gimode = 'L'; + u32 gflags; + + if (!mi->groups[i].supported) + 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->groups[i].supported & 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); + prob = MINSTREL_TRUNC(mrs->cur_prob * 1000); + eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000); + + p += sprintf(p, "%4u.%1u %4u.%1u %3u.%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, + prob / 10, prob % 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] " + "[ ø(tp) ø(prob) sd(prob)] [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, prob, eprob, tx_time; + char htmode = '2'; + char gimode = 'L'; + u32 gflags; + + if (!mi->groups[i].supported) + 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->groups[i].supported & 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); + prob = MINSTREL_TRUNC(mrs->cur_prob * 1000); + eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000); + + p += sprintf(p, "%u.%u,%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, + prob / 10, prob % 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); +} -- cgit 1.2.3-korg