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authorAnkita Bajaj <bankita@codeaurora.org>2018-09-27 18:01:57 +0300
committerJohannes Berg <johannes.berg@intel.com>2018-10-12 12:56:34 +0200
commit0d4e14a32dcab9c4bd559d02874120fbb86b1322 (patch)
tree32b79aceecd4d9bc56f93ee30a7ea3620248d6db /net/wireless
parentbc847970f43281cb07c9f7d0897ee08cd1e08cf3 (diff)
downloadlinux-stericsson-0d4e14a32dcab9c4bd559d02874120fbb86b1322.tar.gz
nl80211: Add per peer statistics to compute FCS error rate
Add support for drivers to report the total number of MPDUs received and the number of MPDUs received with an FCS error from a specific peer. These counters will be incremented only when the TA of the frame matches the MAC address of the peer irrespective of FCS error. It should be noted that the TA field in the frame might be corrupted when there is an FCS error and TA matching logic would fail in such cases. Hence, FCS error counter might not be fully accurate, but it can provide help in detecting bad RX links in significant number of cases. This FCS error counter without full accuracy can be used, e.g., to trigger a kick-out of a connected client with a bad link in AP mode to force such a client to roam to another AP. Signed-off-by: Ankita Bajaj <bankita@codeaurora.org> Signed-off-by: Jouni Malinen <jouni@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 758bb069d000..744b5851bbf9 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4761,6 +4761,8 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
PUT_SINFO_U64(BEACON_RX, rx_beacon);
PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
+ PUT_SINFO(RX_MPDUS, rx_mpdu_count, u32);
+ PUT_SINFO(FCS_ERROR_COUNT, fcs_err_count, u32);
if (wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT)) {
PUT_SINFO(ACK_SIGNAL, ack_signal, u8);