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| author | Peter Seiderer <ps.report@gmx.net> | 2022-04-04 18:54:14 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-04-11 15:50:36 +0200 |
| commit | 5c6dd7bd569b54c0d2904125d7366aa93f077f67 (patch) | |
| tree | a66c2b98a3e4addc21bf53d05c7907d221349ea1 /net/mac80211/trace.h | |
| parent | a75971bc2b8453630e9f85e0beaa4da8db8277a3 (diff) | |
| download | linux-5c6dd7bd569b54c0d2904125d7366aa93f077f67.tar.bz2 | |
mac80211: minstrel_ht: fix where rate stats are stored (fixes debugfs output)
Using an ath9k card the debugfs output of minstrel_ht looks like the following
(note the zero values for the first four rates sum-of success/attempts):
best ____________rate__________ ____statistics___ _____last____ ______sum-of________
mode guard # rate [name idx airtime max_tp] [avg(tp) avg(prob)] [retry|suc|att] [#success | #attempts]
OFDM 1 DP 6.0M 272 1640 5.2 3.1 53.8 3 0 0 0 0
OFDM 1 C 9.0M 273 1104 7.7 4.6 53.8 4 0 0 0 0
OFDM 1 B 12.0M 274 836 10.0 6.0 53.8 4 0 0 0 0
OFDM 1 A S 18.0M 275 568 14.3 8.5 53.8 5 0 0 0 0
OFDM 1 S 24.0M 276 436 18.1 0.0 0.0 5 0 1 80 1778
OFDM 1 36.0M 277 300 24.9 0.0 0.0 0 0 1 0 107
OFDM 1 S 48.0M 278 236 30.4 0.0 0.0 0 0 0 0 75
OFDM 1 54.0M 279 212 33.0 0.0 0.0 0 0 0 0 72
Total packet count:: ideal 16582 lookaround 885
Average # of aggregated frames per A-MPDU: 1.0
Debugging showed that the rate statistics for the first four rates where
stored in the MINSTREL_CCK_GROUP instead of the MINSTREL_OFDM_GROUP because
in minstrel_ht_get_stats() the supported check was not honoured as done in
various other places, e.g net/mac80211/rc80211_minstrel_ht_debugfs.c:
74 if (!(mi->supported[i] & BIT(j)))
75 continue;
With the patch applied the output looks good:
best ____________rate__________ ____statistics___ _____last____ ______sum-of________
mode guard # rate [name idx airtime max_tp] [avg(tp) avg(prob)] [retry|suc|att] [#success | #attempts]
OFDM 1 D 6.0M 272 1640 5.2 5.2 100.0 3 0 0 1 1
OFDM 1 C 9.0M 273 1104 7.7 7.7 100.0 4 0 0 38 38
OFDM 1 B 12.0M 274 836 10.0 9.9 89.5 4 2 2 372 395
OFDM 1 A P 18.0M 275 568 14.3 14.3 97.2 5 52 53 6956 7181
OFDM 1 S 24.0M 276 436 18.1 0.0 0.0 0 0 1 6 163
OFDM 1 36.0M 277 300 24.9 0.0 0.0 0 0 1 0 35
OFDM 1 S 48.0M 278 236 30.4 0.0 0.0 0 0 0 0 38
OFDM 1 S 54.0M 279 212 33.0 0.0 0.0 0 0 0 0 38
Total packet count:: ideal 7097 lookaround 287
Average # of aggregated frames per A-MPDU: 1.0
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Link: https://lore.kernel.org/r/20220404165414.1036-1-ps.report@gmx.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/trace.h')
0 files changed, 0 insertions, 0 deletions