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cfg80211: Pass new RSSI level in CQM RSSI notification

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Update the drivers to pass the RSSI level as a cfg80211_cqm_rssi_notify
parameter and pass this value to userspace in a new nl80211 attribute.
This helps both userspace and also helps in the implementation of the
multiple RSSI thresholds CQM mechanism.

Note for marvell/mwifiex I pass 0 for the RSSI value because the new
RSSI value is not available to the driver at the time of the
cfg80211_cqm_rssi_notify call, but the driver queries the new value
immediately after that, so it is actually available just a moment later
if we wanted to defer caling cfg80211_cqm_rssi_notify until that moment.
Without this, the new cfg80211 code (patch 3) will call .get_station
which will send a duplicate HostCmd_CMD_RSSI_INFO command to the hardware.

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Andrzej Zaborowski
2017-01-25 12:43:41 +01:00
committed by Johannes Berg
parent 769f07d8f0
commit bee427b862
7 changed files with 23 additions and 11 deletions
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3
include/uapi/linux/nl80211.h
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@@ -3952,6 +3952,8 @@ enum nl80211_ps_state {
* %NL80211_CMD_NOTIFY_CQM. Set to 0 to turn off TX error reporting.
* @NL80211_ATTR_CQM_BEACON_LOSS_EVENT: flag attribute that's set in a beacon
* loss event
* @NL80211_ATTR_CQM_RSSI_LEVEL: the RSSI value in dBm that triggered the
* RSSI threshold event.
* @__NL80211_ATTR_CQM_AFTER_LAST: internal
* @NL80211_ATTR_CQM_MAX: highest key attribute
*/
@@ -3965,6 +3967,7 @@ enum nl80211_attr_cqm {
NL80211_ATTR_CQM_TXE_PKTS,
NL80211_ATTR_CQM_TXE_INTVL,
NL80211_ATTR_CQM_BEACON_LOSS_EVENT,
NL80211_ATTR_CQM_RSSI_LEVEL,
/* keep last */
__NL80211_ATTR_CQM_AFTER_LAST,