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| author | Felix Fietkau <nbd@nbd.name> | 2020-08-08 19:25:42 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-08-27 10:53:20 +0200 |
| commit | 47df8e059b49a80c179fae39256bcd7096810934 (patch) | |
| tree | 50bd138007bf2bbca391917d2e33633ccb415d8f /net/mac80211/sta_info.h | |
| parent | 47caf685a6854593348f216e0b489b71c10cbe03 (diff) | |
| download | lwn-47df8e059b49a80c179fae39256bcd7096810934.tar.gz lwn-47df8e059b49a80c179fae39256bcd7096810934.zip | |
mac80211: reduce packet loss event false positives
When running a large number of packets per second with a high data rate
and long A-MPDUs, the packet loss threshold can be reached very quickly
when the link conditions change. This frequently shows up as spurious
disconnects.
Mitigate false positives by using a similar logic for regular stations
as the one being used for TDLS, though with a more aggressive timeout.
Packet loss events are only reported if no ACK was received for a second.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200808172542.41628-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.h')
| -rw-r--r-- | net/mac80211/sta_info.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 8060d142e4f1..d5010116cf4d 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -524,7 +524,7 @@ struct ieee80211_sta_rx_stats { * @status_stats.retry_failed: # of frames that failed after retry * @status_stats.retry_count: # of retries attempted * @status_stats.lost_packets: # of lost packets - * @status_stats.last_tdls_pkt_time: timestamp of last TDLS packet + * @status_stats.last_pkt_time: timestamp of last ACKed packet * @status_stats.msdu_retries: # of MSDU retries * @status_stats.msdu_failed: # of failed MSDUs * @status_stats.last_ack: last ack timestamp (jiffies) @@ -597,7 +597,7 @@ struct sta_info { unsigned long filtered; unsigned long retry_failed, retry_count; unsigned int lost_packets; - unsigned long last_tdls_pkt_time; + unsigned long last_pkt_time; u64 msdu_retries[IEEE80211_NUM_TIDS + 1]; u64 msdu_failed[IEEE80211_NUM_TIDS + 1]; unsigned long last_ack; |