| From: Felix Fietkau <nbd@nbd.name> |
| Date: Sat, 23 Jan 2021 00:10:34 +0100 |
| Subject: [PATCH] mac80211: minstrel_ht: show sampling rates in debugfs |
| |
| This makes it easier to see what rates are going to be tested next |
| |
| Signed-off-by: Felix Fietkau <nbd@nbd.name> |
| --- |
| |
| --- a/net/mac80211/rc80211_minstrel_ht_debugfs.c |
| +++ b/net/mac80211/rc80211_minstrel_ht_debugfs.c |
| @@ -32,6 +32,18 @@ minstrel_stats_release(struct inode *ino |
| 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) |
| { |
| @@ -84,6 +96,7 @@ minstrel_ht_stats_dump(struct minstrel_h |
| *(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); |
| @@ -145,9 +158,9 @@ minstrel_ht_stats_open(struct inode *ino |
| |
| p += sprintf(p, "\n"); |
| p += sprintf(p, |
| - " best ____________rate__________ ____statistics___ _____last____ ______sum-of________\n"); |
| + " 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"); |
| + "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++) |
| @@ -228,6 +241,7 @@ minstrel_ht_stats_csv_dump(struct minstr |
| 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); |