diff options
| author | Ilan Peer <ilan.peer@intel.com> | 2020-09-30 16:31:12 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2020-10-01 22:00:55 +0300 |
| commit | b68bd2e3143adbcbc7afd2bc4974c1b988b87211 (patch) | |
| tree | 6343e3c096bb8ceae263dde804cbc3ddea0b9fe6 /drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | |
| parent | 3830a01c3bfac0c037d68fa0ce22d6f9e3ed2336 (diff) | |
iwlwifi: mvm: Add FTM initiator RTT smoothing logic
The overcome instabilities in the RTT results add smoothing logic
to the reported results. In short, the smoothing logic tracks the
RTT average of each responder for a period of time, and in case
a new RTT results is found to be a spur, the tracked RTT average
is reported instead of the current RTT measurement.
Smooth logic debug configuration using iwl-dbg-cfg.ini:
- MVM_FTM_INITIATOR_ENABLE_SMOOTH: Set to 1 to enable smoothing logic
(default=0).
- MVM_FTM_INITIATOR_SMOOTH_ALPHA: A value between 0 - 100, defining
the weight of the current RTT results vs. the RTT average tracked
based on the previous results. A value of 100 means use only the
current RTT results.
- MVM_FTM_INITIATOR_SMOOTH_AGE_SEC: The maximal time in seconds in which
the RTT average tracked based on previous results is considered valid.
- MVM_FTM_INITIATOR_SMOOTH_UNDERSHOOT: if the current RTT is positive
and below the RTT average by at least this value, report the average
RTT instead of the current one. In units of picoseconds.
- MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT: if the current RTT is positive
and above the RTT average by at least this value, report the average
RTT instead of the current one. In units of picoseconds.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200930161256.48a9cec2081b.Iaec1e29f738232adfe9e2ea8e9eb9b6ff0323ae1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/mvm.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index c57d45090715..ba1b74d10577 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1107,6 +1107,9 @@ struct iwl_mvm { struct wireless_dev *req_wdev; struct list_head loc_list; int responses[IWL_MVM_TOF_MAX_APS]; + struct { + struct list_head resp; + } smooth; } ftm_initiator; struct list_head resp_pasn_list; @@ -2011,6 +2014,8 @@ void iwl_mvm_ftm_lc_notif(struct iwl_mvm *mvm, int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct cfg80211_pmsr_request *request); void iwl_mvm_ftm_abort(struct iwl_mvm *mvm, struct cfg80211_pmsr_request *req); +void iwl_mvm_ftm_initiator_smooth_config(struct iwl_mvm *mvm); +void iwl_mvm_ftm_initiator_smooth_stop(struct iwl_mvm *mvm); /* TDLS */ |