Adds support for sme_abort_roaming for ROAM_OFFLOAD_V1.
Also fix compilation error for ROAM_OFFLOAD_V1.
Change-Id: I06247b1118b7dee32ff392b247e2e08e32dbaf9f
CRs-Fixed: 2768397
Add changes to send roam scan mode over RSO start/stop/update_cfg
from connection manager. Update the roaming params and roam scan
params to new structure.
Refine send_roam_scan_offload_mode_cmd_tlv().
Change-Id: I6adce2e8a24ece93a079032d0e66760393fcdccd
CRs-Fixed: 2766023
Fix NULL pointer dereference of mlme_priv while using
the macro GET_CM_ROAM_TX_OPS_FROM_VDEV. Also replace this
macro GET_CM_ROAM_TX_OPS_FROM_VDEV with inline function to comply
with the linux coding style “Generally, inline functions are
preferable to macros resembling functions”
Change-Id: Ifc9ba37e3d260b027ba79457f00382374f3b78ac
CRs-Fixed: 2764891
A race condition can happen when roaming state machine
transition takes place in the following sequence:
1) FW indicates 'roam_synch' event to driver, and driver in
turn, advances its roaming state machine to
'WLAN_ROAM_SYNCH_IN_PROG', in wlan scheduler context;
2) HDD layer starts to do 'disconnect'(could be due to NUD
failure), and thus needs to stop roaming scan offload in
the following sequence:
2.1) Post a RSO stop cmd to FW, via the scheduler thread;
2.2) Advance the roaming state machine to a new state of
'WLAN_ROAM_RSO_STOPPED';
2.3) Check if:
>> the roaming state machine is still in a state of
'WLAN_ROAM_SYNCH_IN_PROG'
>> the neighbor roaming state is in any of the states
below:
eCSR_NEIGHBOR_ROAM_STATE_REASSOCIATING;
eCSR_NEIGHBOR_ROAM_STATE_PREAUTHENTICATING;
eCSR_NEIGHBOR_ROAM_STATE_PREAUTH_DONE;
Here, if any of the conditions becomes true, then
HDD will wait for 4 sec to let the roam_synch handler
finish its job, otherwise the wait will not happen.
2.4) Disconnect the current vdev and advance the roaming
state machine to 'WLAN_ROAM_DEINIT';
In a corner case, race condition can happen in the following
sequence:
>> thread 1), which executes in wlan scheduler context, starts
to run first, and thus roaming state machine advances to
'WLAN_ROAM_SYNCH_IN_PROG', but then gets preempted before
starting to parse the assoc resp frame attached in the
roam_synch event;
>> thread 2) starts to run and posts RSO stop cmd, but the req
msg cannot be handled right away due to scheduler thread
is actively running with other tasks, so it gets queued at
step 2.1);
>> thread 2) continues to run, and simply advances the roaming
state machine to 'WLAN_ROAM_RSO_STOPPED' at 2.2), and then
it will find out none of the conditions listed in 2.3) is
true, so it choses NOT to wait for 'roam_synch' handler to
finish;
>> thread 2) reaches to step 2.4) without waiting at 2.3), and
roaming state machine advances to 'WLAN_ROAM_DEINIT';
>> thread 1) continues to run and starts to parse the assoc
resp frame indicated by FW, and finds that the roaming state
machine NOT in 'WLAN_ROAM_SYNCH_IN_PROG', and thus goes to
the wrong way to treat the buffer in a different manner,
causing a invalid pointer access here.
Fix the racing condition by checking if the roaming state machine
is in 'WLAN_ROAM_SYNCH_IN_PROG' before advancing the same to
'WLAN_ROAM_RSO_STOPPED' in function wlan_hdd_wait_for_roaming().
Change-Id: I202ccb371e9e70a76ef35938c700b60c91b7d3cb
CRs-Fixed: 2761880
Add RSO logic to send roam trigger from target if along with
some optimization to move old logic in ROAM_OFFLOAD_V1.
Change-Id: I38e7fb4f8873328097df7e3a25d6c709f8d69b33
CRs-Fixed: 2765155
Add support to send WMI_RSSI_CHANGE_THRESHOLD command to firmware
in connection manager.
Change-Id: I97d4b8f8fc0e938ede0e61d44eb8ffbcbb0fb4ff
CRs-Fixed: 2761043
Add changes to define structure to hold the WMI_ROAM_SCAN_MODE
command related parameters.
Also added minor cleanup changes.
Change-Id: I24ef18e05de8dd05ee437e440651ea9ab0731e46
CRs-Fixed: 2758316
Add new code to implement below functions for connection manager
roam part:
And below two RSO command related process:
ROAM_SCAN_OFFLOAD_STOP
ROAM_SCAN_OFFLOAD_UPDATE_CFG
Change-Id: I378b969ddae77fff49ad1d4d8ce21764b292e5ac
CRs-Fixed: 2753011
Use ROAM_11KV_CTRL WMI vdev command to enable/disable the roaming
functionality in FW.
Change-Id: If3bb344ec7058d4149d0064975d7c91f213fd105
CRs-Fixed: 2727671
As per requirement, send a value of an INI "roam_score_delta" to FW
through WMI_ROAM_ENABLE_DISABLE_TRIGGER_REASON_CMDID.
Change-Id: I9a2087f83c2eb95338d440dc901bd8aa246f7e5f
CRs-Fixed: 2740552
Add connection manager changes to send roam scan offload init
deinit. Add new enum roam_offload_init_flags to fill the roam
init/deinit flags, 4-way handshake offload, bmiss skip full scan
flags at connection manager instead of getting the ini and filling
at target if.
Change-Id: I558e868efd341b508d3df76c8d6ab90eac512432
CRs-Fixed: 2745585
Print info related to WTC BTM roaming coming via
wmi_roam_trigger_reason_tlv_param.
Print timestamp, which indicates the time when btm response is sent
to AP, coming via wmi_roam_btm_response_info_tlv_param to HOST.
Change-Id: I2c408527739e1e2831015dd7b959ab17299abf6b
CRs-Fixed: 2740597
In scenarios where p2p is going to be the first connection,
while performing group negotiation, pass up the allowed non-pcl
channels with valid weight so that supplicant can include these
channels as well during negotiation.
Passing interface mode to policy_mgr_get_valid_chan_weights and
populating the channel list based on policy_mgr_is_concurrency_allowed
api for the given mode and assign WEIGHT_OF_NON_PCL_CHANNELS for all
allowed channels.
Change-Id: I8ff08163e6490642f9c2ebd9ca08f1275a2bb1b8
CRs-Fixed: 2734756
In wlan_cm_roam_send_set_vdev_pcl(), pcl_req intially checked
for NULL can be dereferenced later.
Validate pcl_req and return error if pcl_req is NULL.
Change-Id: Iccc4e09c636d2643c319a1767bf8f673d6d36a80
CRs-Fixed: 2734082
Add macro ROAM_OFFLOAD_V1 for new code and implement below functions
for connection manager roam part:
csr_handle_roam_state_change() roam offload state related handler.
Filling WMI_ROAM_SCAN_RSSI_THRESHOLD cmd parameters related process.
Change-Id: I0351155ca5a3d68ade6568c7527c5708582ccf1a
CRs-Fixed: 2730826
Userspace can configure different roam control params as
defined in qca_vendor_attr_roam_control through the roam subcmd
QCA_NL80211_VENDOR_SUBCMD_ROAM and the below attributes:
QCA_ATTR_ROAM_CONTROL_SCAN_FREQ_SCHEME
QCA_ATTR_ROAM_CONTROL_CONNECTED_RSSI_THRESHOLD
QCA_ATTR_ROAM_CONTROL_CANDIDATE_RSSI_THRESHOLD
QCA_ATTR_ROAM_CONTROL_USER_REASON
Send value of above attribute to fw through command
WMI_ROAM_ENABLE_DISABLE_TRIGGER_REASON_CMDID for trigger
reason WMI_ROAM_TRIGGER_REASON_BTM_WTC.
Change-Id: I17502eebab56652192164144b7ebdadb32033117
CRs-Fixed: 2729119
The event WMI_ROAM_STATS_EVENTID is received after
every roam, once the roam synch complete is sent by the host.
This event contains details regarding the btm response.
This helps in debugging/understanding the scenario when roam
failure happens.
Print the info received related to btm rsp and roam initial
info into kmsg.
Change-Id: Icb2058eed5df3265018b3c53548d123f3a4faf4f
CRs-Fixed: 2728267
The band_capability field is used in other places to be
a bitmap over reg_wifi_band. Update the field in wma_tgt_cfg and
wlan_mlme_generic to take the same bitmap for consistency.
Update all references to these fields to expect a bitmap as well.
Change-Id: I8abd697e2fbe02b4eadd32f3027bef7408bac2a0
CRs-fixed: 2726710
Add changes to handle transition to the 2 new states:
1. Roaming in progress: Switch to this state when roam
start notification is received from firmware.
2. Roam Synch in progress: Switch to this from RSO
STARTED state if roam synch indication event is received
from firmware. Change to this state is also allowed in
RSO STOPPED state if supplicant disabled roaming on that
vdev - to allow roam invoke to be processed.
Also query the state machine to get the roaming status instead
of using discrete flags at various layers. Clean the redundant
roaming in progress, roam synch related flags.
Change-Id: Ide20a30d9d8c20a96d8bba70367b51b8643cae09
CRs-Fixed: 2725443
Rename the existing roam offload states to include
WLAN_ prefix. Add 2 new states:
WLAN_ROAMING_IN_PROG - Roaming has started at firmware, this is
after candidate selection at firmware.
WLAN_ROAM_SYNCH_IN_PROG - State after handoff is complete at
firmware.
Also move the roam_offload_state enum to connection manager.
Change-Id: Ib1f38d200393849253893113172cdfc69e381fb3
CRs-Fixed: 2725387
Send Vdev pcl command on both connected STA vdev when sta+sta
roaming is enabled. Handle below cases:
1. When 1st STA is connected send PDEV pcl command for the
first sta. Set pcl_vdev_cmd_active false.
2. When 2nd STA comes up, Set pcl_vdev_cmd_active to true,
send vdev PCL for 1st sta before enabling roaming(disabled
as part of the connect on 2nd STA).
3. For second STA force dbs connection when
enable_dual_sta_roam_offload ini is enabled. Set the channels
of the 1st connected STA band as invalid and remove these
channels from the scan filter.
4. On disconnection of 2nd STA connection, clear the vdev
PCL sent for 1st STA and then send PDEV pcl command.
Also make changes to send set PCL command after roam init
is done before RSO start is done at firmware to avoid assert.
Post set pcl command from sme/csr through lim/wma/wmi to avoid
the above condition.
Disable roaming on the vdev before sending set PCL command to
avoid roaming on undesirable band & channels.
Change-Id: I6bd869015b7248fe5c5c90b6e2fa0174995be197
CRs-Fixed: 2725360
Enable compilation of the connection manager roam files with
Kbuild changes.
Add new API to store and retrieve the firmware scan channels at
mlme. Also add initial support to post SET_PCL command through
lim, so that it is not sent before ROAM init command.
Add changes to restrict connection of the 2nd STA to
channels on the other band of the 1st STA connected band.
This is done by filling only the allowed band channels in
the scan filters for the 2nd STA connection. If only
1 STA is active, it is allowed to connect on any band.
Add header gaurds for missed header files:
wlan_cm_tgt_if_tx_api.h
target_if_cm_roam_offload.h
Change-Id: Id2bce12b9663ed635ea46164169b088461aab870
CRs-Fixed: 2720341
Add new connection manager API to send vdev pcl command for
sta + sta roaming per vdev. For vdev pcl command, the weight of
the 1st sta connected band will be set to 0.
Add connection manager roam API files for TX ops,
connection manager target if wrapper to send the vdev
pcl command to wmi. Introduce new API to get dual sta
roaming support and save it in cm roam public struct.
Change-Id: I56a7475b0b9865e969917ec05a117f206f198111
CRs-Fixed: 2712346
