Currently, whenever roaming is triggered after a successful roam scan
firmware sends a BTM query to current connected AP when it is 11v
capable. Driver completes roaming with candidates received as part of
BTM request from AP. STA respond to AP with BTM response after
successful initiation of roaming.
Now the requirement is FW could send "BTM query with a preferred
candidate list" after a successful roam scan for some roam scan reasons
like PER, LOW_RSSI, HIGH_RSSI, MAWC, DENSE etc. Preferred candidate list
is obtained as part of roam scan based on firmware bss scoring logic.
Add new ini "btm_query_bitmask" to configure the bitmask for roam scan
reasons which is sent to firmware as part of RSO start via wmi btm config
cmd. Fw sends "BTM query with preferred candidate list" only for those
roam scans which are enabled through this bitmask.
New INI: btm_query_bitmask
Min: 0
Max: 0xFFFFFFFF
Default: 0x8
Bitmask : 0x8 (LOW_RSSI) refer enum WMI_ROAM_TRIGGER_REASON_ID.
Change-Id: I24b538745f2ac88d4e5c990573234e0f8a881b1f
CRs-Fixed: 2408111
Add the following new WCNSS_qcom.ini value:
"prefer_roam_score_for_candidate_selection" - choose to sort the
candidates on roam score or preferred AP list send in the BTM
request frame by AP.
When this ini is set, host driver will
modify btm_offload_config bit 7 which will be read by firmware
to get this ini value.
“roam_candidate_validity_timer” - roam cache entries validity
timer. The candidates in the roam cache are valid only for this
time value. This value is sent to firmware over the wmi command
on the structure wmi_roam_offload_tlv_param
"btm_disassoc_timer_threshold" - Disassociation timer threshold
to wait after which the full scan for roaming can be started
after the AP has sent the disassoc imminent
Change-Id: I3ba5ba2182b1b6d722d9c315757332a1b3e62521
CRs-Fixed: 2369018
Add new WCNSS_qcom.ini value:
"prefer_btm_query" - Set this flag to enable the firmware to
send btm query for neighbor list. If this flag is not set,
the firmware will fallback to current mechanism of sending
11k neighbor report request instead of btm query.
When this prefer_btm_query is set, host driver will modify
btm_offload_config bit 8 which will be read by firmware to
get this ini value.
Change-Id: Id424c0da7207b0185cee67172782ef5c1d9fd131
CRs-Fixed: 2369000
