qcacld-3.0: Add new ini to set min delay btw scan and reason bit-mask

Currently there is no provision to decide delay between two roam
scans in firmware. With these new ini's, driver wants to expose
control to decide delay between roam scans:

Add ini "min_delay_btw_scans" to set minimum duration allowed between
two consecutive roam scans. Fw should not allow roam scan if duration
between two consecutive roam scan is less than min_delay_btw_scan.

Add ini "roam_trigger_reason_bitmask" to set default value of
bit-mask containing roam_trigger_reasons for which
min_delay_btw_scans constraints should be apply.

Change-Id: I2af9d5dc8e6919eeb90251d3d744e3f07705e776
CRs-Fixed: 2221779

core/hdd/inc/wlan_hdd_cfg.h

@@ -2147,6 +2147,69 @@ enum hdd_dot11_mode {
 #define CFG_ROAM_BG_SCAN_CLIENT_BITMAP_MAX      (0x7FF)
 #define CFG_ROAM_BG_SCAN_CLIENT_BITMAP_DEFAULT  (0x424)
 
+/*
+ * <ini>
+ * min_delay_btw_roam_scans - Min duration (in sec) allowed btw two
+ * consecutive roam scans
+ * @Min: 0
+ * @Max: 60
+ * @Default: 10
+ *
+ * Roam scan is not allowed if duration between two consecutive
+ * roam scans is less than this time.
+ *
+ * Related: None
+ *
+ * Supported Feature: Roaming
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_MIN_DELAY_BTW_ROAM_SCAN_NAME    "min_delay_btw_roam_scans"
+#define CFG_MIN_DELAY_BTW_ROAM_SCAN_MIN     (0)
+#define CFG_MIN_DELAY_BTW_ROAM_SCAN_MAX     (60)
+#define CFG_MIN_DELAY_BTW_ROAM_SCAN_DEFAULT (10)
+
+/*
+ * <ini>
+ * roam_trigger_reason_bitmask - Contains roam_trigger_reasons
+ * @Min: 0
+ * @Max: 0xFFFFFFFF
+ * @Default: 0xDA
+ *
+ * Bitmask containing roam_trigger_reasons for which
+ * min_delay_btw_roam_scans constraint should be applied.
+ * Currently supported bit positions are as follows:
+ * Bit 0 is reserved in the firmware.
+ * WMI_ROAM_TRIGGER_REASON_PER - 1
+ * WMI_ROAM_TRIGGER_REASON_BMISS - 2
+ * WMI_ROAM_TRIGGER_REASON_LOW_RSSI - 3
+ * WMI_ROAM_TRIGGER_REASON_HIGH_RSSI - 4
+ * WMI_ROAM_TRIGGER_REASON_PERIODIC - 5
+ * WMI_ROAM_TRIGGER_REASON_MAWC - 6
+ * WMI_ROAM_TRIGGER_REASON_DENSE - 7
+ * WMI_ROAM_TRIGGER_REASON_BACKGROUND - 8
+ * WMI_ROAM_TRIGGER_REASON_FORCED - 9
+ * WMI_ROAM_TRIGGER_REASON_BTM - 10
+ * WMI_ROAM_TRIGGER_REASON_UNIT_TEST - 11
+ * WMI_ROAM_TRIGGER_REASON_MAX - 12
+ *
+ * For Ex: 0xDA (PER, LOW_RSSI, HIGH_RSSI, MAWC, DENSE)
+ *
+ * Related: None
+ *
+ * Supported Feature: Roaming
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_NAME "roam_trigger_reason_bitmask"
+#define CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_MIN     (0)
+#define CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_MAX     (0xFFFFFFFF)
+#define CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_DEFAULT (0xDA)
+
 /*
  * <ini>
  * roam_bad_rssi_thresh_offset_2g - RSSI threshold offset for 2G to 5G roam
@@ -14541,6 +14604,8 @@ struct hdd_config {
 	int8_t roam_bg_scan_bad_rssi_thresh;
 	uint8_t roam_bad_rssi_thresh_offset_2g;
 	uint32_t ho_delay_for_rx;
+	uint32_t min_delay_btw_roam_scans;
+	uint32_t roam_trigger_reason_bitmask;
 	uint32_t roam_bg_scan_client_bitmap;
 	bool enable_edca_params;
 	uint32_t edca_vo_cwmin;

core/hdd/src/wlan_hdd_cfg.c

@@ -3859,6 +3859,22 @@ struct reg_table_entry g_registry_table[] = {
 		CFG_ROAM_HO_DELAY_FOR_RX_MIN,
 		CFG_ROAM_HO_DELAY_FOR_RX_MAX),
 
+	REG_VARIABLE(CFG_MIN_DELAY_BTW_ROAM_SCAN_NAME,
+		WLAN_PARAM_Integer, struct hdd_config,
+		min_delay_btw_roam_scans,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_MIN_DELAY_BTW_ROAM_SCAN_DEFAULT,
+		CFG_MIN_DELAY_BTW_ROAM_SCAN_MIN,
+		CFG_MIN_DELAY_BTW_ROAM_SCAN_MAX),
+
+	REG_VARIABLE(CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_NAME,
+		WLAN_PARAM_HexInteger, struct hdd_config,
+		roam_trigger_reason_bitmask,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_DEFAULT,
+		CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_MIN,
+		CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_MAX),
+
 	REG_VARIABLE(CFG_ENABLE_FATAL_EVENT_TRIGGER, WLAN_PARAM_Integer,
 			struct hdd_config, enable_fatal_event,
 			VAR_FLAGS_OPTIONAL |
@@ -6851,6 +6867,12 @@ void hdd_cfg_print(struct hdd_context *hdd_ctx)
 	hdd_debug("Name = [%s] Value = [%u]",
 		CFG_ROAM_HO_DELAY_FOR_RX_NAME,
 		hdd_ctx->config->ho_delay_for_rx);
+	hdd_debug("Name = [%s] Value = [%u]",
+		CFG_MIN_DELAY_BTW_ROAM_SCAN_NAME,
+		hdd_ctx->config->min_delay_btw_roam_scans);
+	hdd_debug("Name = [%s] Value = [%u]",
+		CFG_ROAM_SCAN_TRIGGER_REASON_BITMASK_NAME,
+		hdd_ctx->config->roam_trigger_reason_bitmask);
 	hdd_debug("Name = [%s] Value = [%u]",
 		CFG_MIN_REST_TIME_NAME,
 		hdd_ctx->config->min_rest_time_conc);
@@ -8793,6 +8815,10 @@ QDF_STATUS hdd_set_sme_config(struct hdd_context *hdd_ctx)
 		hdd_ctx->config->roam_bad_rssi_thresh_offset_2g;
 	smeConfig->csrConfig.ho_delay_for_rx =
 		hdd_ctx->config->ho_delay_for_rx;
+	smeConfig->csrConfig.min_delay_btw_roam_scans =
+		hdd_ctx->config->min_delay_btw_roam_scans;
+	smeConfig->csrConfig.roam_trigger_reason_bitmask =
+		hdd_ctx->config->roam_trigger_reason_bitmask;
 	smeConfig->csrConfig.obss_width_interval =
 			hdd_ctx->config->obss_width_trigger_interval;
 	smeConfig->csrConfig.obss_active_dwelltime =

core/mac/inc/sir_api.h

@@ -2943,6 +2943,8 @@ typedef struct sSirRoamOffloadScanReq {
 	uint32_t btm_sticky_time;
 	struct wmi_11k_offload_params offload_11k_params;
 	uint32_t ho_delay_for_rx;
+	uint32_t min_delay_btw_roam_scans;
+	uint32_t roam_trigger_reason_bitmask;
 } tSirRoamOffloadScanReq, *tpSirRoamOffloadScanReq;
 
 typedef struct sSirRoamOffloadScanRsp {

core/sme/inc/csr_api.h

@@ -1212,6 +1212,8 @@ typedef struct tagCsrConfigParam {
 	uint8_t max_amsdu_num;
 	uint8_t nSelect5GHzMargin;
 	uint32_t ho_delay_for_rx;
+	uint32_t min_delay_btw_roam_scans;
+	uint32_t roam_trigger_reason_bitmask;
 	uint8_t isCoalesingInIBSSAllowed;
 #ifdef FEATURE_WLAN_MCC_TO_SCC_SWITCH
 	uint8_t cc_switch_mode;

core/sme/inc/csr_internal.h

@@ -538,6 +538,8 @@ struct csr_config {
 	uint8_t max_amsdu_num;
 	uint8_t nSelect5GHzMargin;
 	uint32_t ho_delay_for_rx;
+	uint32_t min_delay_btw_roam_scans;
+	uint32_t roam_trigger_reason_bitmask;
 	uint8_t isCoalesingInIBSSAllowed;
 #ifdef FEATURE_WLAN_MCC_TO_SCC_SWITCH
 	uint8_t cc_switch_mode;

core/sme/src/csr/csr_api_roam.c

@@ -2941,6 +2941,10 @@ QDF_STATUS csr_change_default_config_param(tpAniSirGlobal pMac,
 			pParam->nSelect5GHzMargin;
 		pMac->roam.configParam.ho_delay_for_rx =
 			pParam->ho_delay_for_rx;
+		pMac->roam.configParam.min_delay_btw_roam_scans =
+			pParam->min_delay_btw_roam_scans;
+		pMac->roam.configParam.roam_trigger_reason_bitmask =
+			pParam->roam_trigger_reason_bitmask;
 		pMac->roam.configParam.isCoalesingInIBSSAllowed =
 			pParam->isCoalesingInIBSSAllowed;
 #ifdef FEATURE_WLAN_MCC_TO_SCC_SWITCH
@@ -3285,6 +3289,9 @@ QDF_STATUS csr_get_config_param(tpAniSirGlobal pMac, tCsrConfigParam *pParam)
 	pParam->max_amsdu_num = cfg_params->max_amsdu_num;
 	pParam->nSelect5GHzMargin = cfg_params->nSelect5GHzMargin;
 	pParam->ho_delay_for_rx = cfg_params->ho_delay_for_rx;
+	pParam->min_delay_btw_roam_scans = cfg_params->min_delay_btw_roam_scans;
+	pParam->roam_trigger_reason_bitmask =
+			cfg_params->roam_trigger_reason_bitmask;
 	pParam->isCoalesingInIBSSAllowed = cfg_params->isCoalesingInIBSSAllowed;
 	pParam->allowDFSChannelRoam = cfg_params->allowDFSChannelRoam;
 	pParam->nInitialDwellTime = cfg_params->nInitialDwellTime;
@@ -17800,6 +17807,10 @@ csr_update_roam_scan_offload_request(tpAniSirGlobal mac_ctx,
 	req_buf->RoamRssiCatGap = mac_ctx->roam.configParam.bCatRssiOffset;
 	req_buf->Select5GHzMargin = mac_ctx->roam.configParam.nSelect5GHzMargin;
 	req_buf->ho_delay_for_rx = mac_ctx->roam.configParam.ho_delay_for_rx;
+	req_buf->min_delay_btw_roam_scans =
+			mac_ctx->roam.configParam.min_delay_btw_roam_scans;
+	req_buf->roam_trigger_reason_bitmask =
+			mac_ctx->roam.configParam.roam_trigger_reason_bitmask;
 	if (wlan_cfg_get_int(mac_ctx, WNI_CFG_REASSOCIATION_FAILURE_TIMEOUT,
 			     (uint32_t *) &req_buf->ReassocFailureTimeout)
 	    != eSIR_SUCCESS) {

core/wma/src/wma_scan_roam.c

@@ -359,6 +359,10 @@ QDF_STATUS wma_roam_scan_offload_mode(tp_wma_handle wma_handle,
 		params->fw_okc = roam_req->pmkid_modes.fw_okc;
 		params->fw_pmksa_cache = roam_req->pmkid_modes.fw_pmksa_cache;
 #endif
+		params->min_delay_btw_roam_scans =
+				roam_req->min_delay_btw_roam_scans;
+		params->roam_trigger_reason_bitmask =
+				roam_req->roam_trigger_reason_bitmask;
 		params->is_ese_assoc = roam_req->IsESEAssoc;
 		params->is_11r_assoc = roam_req->is_11r_assoc;
 		params->mdid.mdie_present = roam_req->MDID.mdiePresent;