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authorJohannes Berg <johannes.berg@intel.com>2014-12-19 12:34:00 +0100
committerJohannes Berg <johannes.berg@intel.com>2015-01-08 15:28:18 +0100
commit6de39808cf1dd7b02bf42e7d8695d80f5eaf645d (patch)
tree257f8e2c3bb35c1049c1b860454973ce4108b159 /net/wireless
parent8d791361a4698ca6f01c361a47b39b30d26bf66c (diff)
downloadlinux-6de39808cf1dd7b02bf42e7d8695d80f5eaf645d.tar.bz2
nl80211: support per-TID station statistics
The base for the current statistics is pretty mixed up, support exporting RX/TX statistics for MSDUs per TID. This (currently) covers received MSDUs, transmitted MSDUs and retries/failures thereof. Doing it per TID for MSDUs makes more sense than say only per AC because it's symmetric - we could export per-AC statistics for all frames (which AC we used for transmission can be determined also for management frames) but per TID is better and usually data frames are really the ones we care about. Also, on RX we can't determine the AC - but we do know the TID for any QoS MPDU we received. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 42b968a1f994..7c2ce26e22de 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3772,6 +3772,47 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
#undef PUT_SINFO
+
+ if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
+ struct nlattr *tidsattr;
+ int tid;
+
+ tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
+ if (!tidsattr)
+ goto nla_put_failure;
+
+ for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
+ struct cfg80211_tid_stats *tidstats;
+ struct nlattr *tidattr;
+
+ tidstats = &sinfo->pertid[tid];
+
+ if (!tidstats->filled)
+ continue;
+
+ tidattr = nla_nest_start(msg, tid + 1);
+ if (!tidattr)
+ goto nla_put_failure;
+
+#define PUT_TIDVAL(attr, memb, type) do { \
+ if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
+ nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
+ tidstats->memb)) \
+ goto nla_put_failure; \
+ } while (0)
+
+ PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
+ PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
+ PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
+ PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
+
+#undef PUT_TIDVAL
+ nla_nest_end(msg, tidattr);
+ }
+
+ nla_nest_end(msg, tidsattr);
+ }
+
nla_nest_end(msg, sinfoattr);
if (sinfo->assoc_req_ies_len &&