Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Felix Fietkau | 1505 | 68.72% | 17 | 45.95% |
Thomas Huehn | 421 | 19.22% | 7 | 18.92% |
Karl Beldan | 203 | 9.27% | 5 | 13.51% |
Jiri Benc | 39 | 1.78% | 2 | 5.41% |
Arnd Bergmann | 12 | 0.55% | 1 | 2.70% |
Paul Gortmaker | 3 | 0.14% | 1 | 2.70% |
Daniel C. Halperin | 2 | 0.09% | 1 | 2.70% |
Joe Perches | 2 | 0.09% | 1 | 2.70% |
Thomas Gleixner | 2 | 0.09% | 1 | 2.70% |
John W. Linville | 1 | 0.05% | 1 | 2.70% |
Total | 2190 | 37 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org> */ #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_ht.h" struct minstrel_debugfs_info { size_t len; char buf[]; }; static 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); } static int minstrel_stats_release(struct inode *inode, struct file *file) { kfree(file->private_data); return 0; } static bool minstrel_ht_is_sample_rate(struct minstrel_ht_sta *mi, int idx) { int type, i; for (type = 0; type < ARRAY_SIZE(mi->sample); type++) for (i = 0; i < MINSTREL_SAMPLE_RATES; i++) if (mi->sample[type].cur_sample_rates[i] == idx) return true; return false; } 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]; int idx = MI_RATE(i, j); unsigned int duration; 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 if (i == MINSTREL_OFDM_GROUP) { p += sprintf(p, "OFDM "); p += sprintf(p, "1 "); } 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' : ' '; *(p++) = minstrel_ht_is_sample_rate(mi, idx) ? 'S' : ' '; 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; if (i == MINSTREL_OFDM_GROUP) r = minstrel_ofdm_bitrates[j % 8]; else r = minstrel_cck_bitrates[j % 4]; p += sprintf(p, " %2u.%1uM", r / 10, r % 10); } p += sprintf(p, " %3u ", idx); /* tx_time[rate(i)] in usec */ duration = mg->duration[j]; duration <<= mg->shift; tx_time = DIV_ROUND_CLOSEST(duration, 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_avg); eprob = MINSTREL_TRUNC(mrs->prob_avg * 1000); p += sprintf(p, "%4u.%1u %4u.%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->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 *mi = inode->i_private; struct minstrel_debugfs_info *ms; unsigned int i; char *p; 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)] [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); if (mi->avg_ampdu_len) 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]; int idx = MI_RATE(i, j); unsigned int duration; 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 if (i == MINSTREL_OFDM_GROUP) { p += sprintf(p, "OFDM,,1,"); } 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" : "")); p += sprintf(p, "%s", (minstrel_ht_is_sample_rate(mi, idx) ? "S" : "")); 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; if (i == MINSTREL_OFDM_GROUP) r = minstrel_ofdm_bitrates[j % 8]; else r = minstrel_cck_bitrates[j % 4]; p += sprintf(p, ",%2u.%1uM,", r / 10, r % 10); } p += sprintf(p, "%u,", idx); duration = mg->duration[j]; duration <<= mg->shift; tx_time = DIV_ROUND_CLOSEST(duration, 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_avg); eprob = MINSTREL_TRUNC(mrs->prob_avg * 1000); p += sprintf(p, "%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->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 *mi = inode->i_private; struct minstrel_debugfs_info *ms; unsigned int i; char *p; 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) { debugfs_create_file("rc_stats", 0444, dir, priv_sta, &minstrel_ht_stat_fops); debugfs_create_file("rc_stats_csv", 0444, dir, priv_sta, &minstrel_ht_stat_csv_fops); }
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