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cfg80211/mac80211: clarify RSSI CQM reporting requirements

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The previous patch changed mac80211 to always report an event
after a CQM RSSI reconfiguration. Document that as expected
behaviour in both the cfg80211 and mac80211 API.

Currently, iwlmvm already implements that behaviour; the other
drivers implementing CQM RSSI events may have to be changed.

This behaviour lets userspace know what the current state is
without relying on querying the data which is racy.

Reviewed-by: Sharon, Sara <sara.sharon@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2015-10-22 17:35:14 +02:00
parent 520c75dcae
commit e86abc689c
2 changed files with 7 additions and 1 deletions
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4
include/net/cfg80211.h
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@@ -2399,6 +2399,10 @@ struct cfg80211_qos_map {
* @set_power_mgmt: Configure WLAN power management. A timeout value of -1
* allows the driver to adjust the dynamic ps timeout value.
* @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
* After configuration, the driver should (soon) send an event indicating
* the current level is above/below the configured threshold; this may
* need some care when the configuration is changed (without first being
* disabled.)
* @set_cqm_txe_config: Configure connection quality monitor TX error
* thresholds.
* @sched_scan_start: Tell the driver to start a scheduled scan.