Full roam scan period is the minimum idle period in seconds between
two successive full channel roam scans. Firmware expects this param
as part of roam scan offload request. Add an ini param to set
it to a default value and use it while sending roam scan offload
request.
Change-Id: Id66b583b2c487f06e62298641dc28853af3ab11c
CRs-Fixed: 2507448
Currently, Driver has below configuration:
1. The default value of Neighbor scan channel max time = 30 msec
2. Probe deferral time = 15 msec and
3. The gap between each Probe Request (Probe repeat time) = 20 msec
As per above roam scan params, after 15 msec of deferral time STA
sends the first probe irrespective of OCE or non-OCE environment.
So after the first probe, STA never sends the second probe because
15 msec + 20 msec = 35 msec which is beyond dwell time( 30 msec).
Because of lower dwell time, many a time STA is not getting enough
time to send the second probe request during a roam scan on the currently
associated channel. In case when STA sends only one probe req,
there is a lesser chance to receive Probe Response in a semi congested
or congested environment. This results in not finding a candidate
during a roaming scan.
STA should have enough time to send 2 Probe Requests under any condition
( clean or noisy) irrespective of the OCE/non-OCE environment.
Fix is to increase the default value of dwell time
"gNeighborScanChannelMaxTime" to 40 msec for STA.
Change-Id: I1bd52f5efe448ccb4ed4585e98aaf519379dd661
CRs-Fixed: 2467703
Currently LFR band specific ini attributes 5g_rssi_boost_threshold
and 5g_rssi_penalize_threshold programmed with wrong type and range.
This can lead to ignore user-input and always use default value.
To fix this, correct min and max ini values for 5Ghz network RSSI
boost/penalty preference.
Change-Id: If89c09fb1343a68dfaa7241b5ec14b046d1bb758
CRs-Fixed: 2452128
Adaptive 11r feature that enables the AP to support FT-AKM
without configuring the FT-AKM in the network. The AP will
advertise non-FT akm with a vendor specific IE having Adaptive
11r bit set to 1 in the IE data. The AP also advertises the
MDE in beacon/probe response.
The STA should check the adaptive 11r capability if the AP
advertises MDE in beacon/probe and adaptive 11r capability in
vendor specific IE. If adaptive 11r capability is found,
STA should advertise the FT equivalent of the non-FT AKM.
Introdue a compile time flag WLAN_ADAPTIVE_11R_ENABLED to
enable/disable adaptive 11r support.
If the AP is adaptive 11r capable, set the is_adaptive_11r_ap
flag in bss descrtiptor. This flag will be sent in join request
and populated to pe_session. Also mark the CSR session as
adaptive 11r session based on this flag.
Add changes to check for the adaptive 11r service capability
advertised by firmware. If the host driver connects to adaptive
11r AP, enable RSO only if the firmware advertises adaptive
11r capability, else RSO should be disabled.
If the connection is adaptive 11r connection and if the adaptive
11r ini is enabled, set the adaptive_11r flag in
wmi_roam_11r_offload_tlv_param sent over the wmi command
WMI_ROAM_SCAN_MODE to the firmware. This will enable firmware to
filter the adaptive 11r AP from roam scan results.
Change-Id: If27a2393e3f4bb68942f5ebcec0135f57627f16b
CRs-Fixed: 2437988
1. There is a need for STA to find better AP to connect to, so
this becomes priority over total scan duration.
2. Typically there are very few channel numbers to scan (with FW
CHAN MAP) therefore any penalty with higher dwell time is
compensated with the lesser number of channel. Only in case of
not finding a candidate FW does full scan but that probability
might reduce if AP is found in first CHAN map scan.
Change-Id: Ib923c2af9b92a1465730a861a2b56393dc3d8668
CRs-Fixed: 2431846
Add new ini to configure various roam trigger parameters:
1. "minimum_btm_candidate_score"
Consider the AP as roam candidate only if its score is greater
than minimum_btm_candidate_score. This value will be sent over
the WMI_BTM_OFFLOAD_CONFIG command.
2. "roam_scan_inactivity_time"
Device inactivity monitoring time in milliseconds for which
the device is considered to be inactive with data packets
count is less than configured roam_inactive_count.
3. "roam_inactive_data_packet_count"
Maximum allowed data packets count during
roam_scan_inactivity_time.
4. "roam_scan_period_after_inactivity"
Roam scan period in ms after device was in inactive state.
5. "btm_roam_score_delta"
Roam scan delta value for btm triggered roam scan. This value
will be sent to firmware over the WMI_ROAM_AP_PROFILE wmi
command.
6. "idle_roam_score_delta"
Roam scan delta value for Idle roam scan trigger reason. This
value will be sent to firmware over the WMI_ROAM_AP_PROFILE
wmi commnd in the roam_score_delta_param_list tlv.
7. "disconnect_roam_trigger_min_rssi"
Candidate minimum rssi value for disconnect roam trigger. This
value will be sent to firmware over the WMI_ROAM_AP_PROFILE
wmi commnd in the roam_score_min_rssi_param_list tlv.
8. "beacon_miss_roam_min_rssi"
Candidate minimum rssi value for BTM triggered roam. This
value will be sent to firmware over the WMI_ROAM_AP_PROFILE
wmi commnd in the roam_score_min_rssi_param_list tlv.
9. "bss_load_trigger_5g_rssi_threshold"
If connected AP is in 5GHz band, then consider bss load roam
triggered only if load % > bss_load_threshold && connected AP
rssi is worse than bss_load_trigger_5g_rssi_threshold.
10. "bss_load_trigger_2g_rssi_threshold"
If connected AP is in 2GHz band, then consider bss load roam
triggered only if load % > bss_load_threshold && connected AP
rssi is worse than bss_load_trigger_2g_rssi_threshold.
Change-Id: Ib026251a8ec403f4376a16a91ff1b5d969336816
CRs-Fixed: 2434922
Add new ini to configure required parameters to trigger
disconnect/idle roam scan:
1.enable_disconnect_roam_offload
When this ini is enabled firmware will trigger roam scan
and roam to a new ap if candidate is found and it will
not forward the deauth frame to the host driver. If
roaming fails after this deauth, then firmware will
forward the deauth frame to the host. If roaming is
successful, we will follow the normal roam synch event
path.
2.enable_idle_roam
When this ini is enabled firmware will trigger roam scan
and roam to a new ap if current connected AP rssi falls
below the threshold. To consider the connection as idle,
the following conditions should be met:
1. When user space sends "SET SUSPENDMODE"
command with value 0.
2. No TX/RX data for idle time configured
3. Connected AP rssi change doesn't exceed the
threshold
4. Connected AP rssi false below minimum rssi.
3. idle_roam_rssi_delta
RSSI change in current connected AP above/below which
idle roam scan will be triggered if other criteria is
met.
4. idle_roam_inactive_time
Time duration in milliseconds for which the connection is
to be considered idle.
5. idle_data_packet_count
number of tx/rx packets below which the connection is
idle.
Change-Id: Ibd1c91656ecd681f8dc83bc77197668a7f3bfa3f
CRs-Fixed: 2427132
Add new ini "roaming_scan_policy" to config roaming scan
behavior (DBS/non-DBS) in fw side.
This ini is corresponding scan_ctrl_flags_ext in
wmi_start_scan_cmd_fixed_param when host sends
WMI_ROAM_SCAN_MODE to fw.
Change-Id: Id95c3b9bb40d4f32ab3ff14a30f72c6150ac1884
CRs-Fixed: 2398531
Add new ini item "bss_load_sample_time" to send the monitor
time window for which the beacons are to be sampled to collect
the bss load information.
Also add changes to send bss load trigger parameters only during
RSO start during initial connection
Change-Id: I61d1f3745b56199838fc886f1ed3a05786653501
CRs-Fixed: 2372147
Introduce the following new WCNSS_qcom.ini values:
"enable_bss_load_roam_trigger"
"bss_load_threshold"
Send these values over the new wmi command,
WMI_ROAM_BSS_LOAD_CONFIG_CMDID if "enable_bss_load_roam_trigger"
is set to true.
This wmi command will be sent to firmware as part of the RSO
start or update config.
Change-Id: Ib2e21904bc7b8d87e5f51824d2694b90a3ac53f2
CRs-Fixed: 2367770
The second part of LFR INIs are defined dynamically in legacy codes.
Refines these INIs and APIs based on new cfg component.
Change-Id: I89869c50952bf2fe403079299b3902fc53c11d61
CRs-Fixed: 2346784
Create and send user configurable ini for max number of roam preauth
retries and roam preauth no-ack timeout to the firmware.
Change-Id: I66808b33f421f56cd7c007cdde1db19c8e7ca5f9
CRs-Fixed: 2279049
gEnableEarlyStopScan is for early stop feature. Since it’s based
on rssi only, make the default value 0 on score enabled code
base.
Change-Id: Ie0e0483359d5a7e2cc969001af03500c9e8209c6
CRs-Fixed: 2311372
Define mlme lfr configures based on converged cfg component, add
APIs to get and set mlme lfr configurations.
Change-Id: I8aa9b37d1b943fcdc6a84704ede37b19cd7cffb8
CRs-Fixed: 2316490
