qcacld-3.0: Remove maxWoWFilters and related

Recent changes in Power Management and Offload (PMO) have removed the
need for a configurable maximum number of WoW filters. Remove the
following relevant fields:

 * maxWoWFilters
 * CFG_MAX_WOW_FILTERS_MAX
 * WMA_STA_WOW_DEFAULT_PTRN_MAX
 * max_wow_filters
 * ol_ini_info

Change-Id: I99cc74731d6373258dc65473a8342bda0ab2786b
CRs-Fixed: 2199452

components/pmo/core/inc/wlan_pmo_static_config.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -81,8 +81,7 @@ void pmo_update_target_service(struct wlan_objmgr_psoc *psoc,
  *
  * Return: none
  */
-void pmo_update_ra_limit(struct wlan_objmgr_psoc *psoc,
-	bool bpf_enabled);
+void pmo_update_ra_limit(struct wlan_objmgr_psoc *psoc, bool bpf_enabled);
 
 /**
  * pmo_set_wow_event_bitmap() - Assign bitmask with wow event

components/pmo/core/src/wlan_pmo_wow.c

@@ -63,7 +63,7 @@ QDF_STATUS pmo_core_add_wow_user_pattern(struct wlan_objmgr_vdev *vdev,
 	 * function (1 in mask value will become FF and 0 will
 	 * become 00),
 	 *
-	 *      Mask value    : FF:00:FF:00:0:00:00:FF
+	 *      Mask value    : FF:00:FF:00:00:00:00:FF
 	 *      Pattern value : 12:00:13:00:00:00:00:44
 	 */
 	qdf_mem_zero(new_mask, sizeof(new_mask));

components/pmo/dispatcher/inc/wlan_pmo_common_public_struct.h

@@ -273,7 +273,6 @@ enum pmo_auto_pwr_detect_failure_mode {
  * @active_mode_offload: true if psoc supports active mode offload else false
  * @ap_arpns_support: true if psoc supports arp ns for ap mode
  * @d0_wow_supported: true if psoc supports D0 wow command
- * @max_wow_filters: maximum number of wow filter supported
  * @ra_ratelimit_enable: true when ra filtering ins eanbled else false
  * @ra_ratelimit_interval: ra packets interval
  * @magic_ptrn_enable: true when magic pattern is enabled else false
@@ -302,7 +301,6 @@ struct pmo_psoc_cfg {
 	bool active_mode_offload;
 	bool ap_arpns_support;
 	bool d0_wow_supported;
-	uint8_t max_wow_filters;
 	bool ra_ratelimit_enable;
 	uint16_t ra_ratelimit_interval;
 	bool magic_ptrn_enable;

components/pmo/dispatcher/inc/wlan_pmo_wow_public_struct.h

@@ -30,7 +30,6 @@
 
 #define PMO_WOWL_PTRN_MAX_SIZE          146
 #define PMO_WOWL_PTRN_MASK_MAX_SIZE      19
-#define PMO_WOWL_MAX_PTRNS_ALLOWED       CFG_MAX_WOW_FILTERS_MAX
 #define PMO_WOWL_BCAST_PATTERN_MAX_SIZE 146
 
 #define PMO_WOW_INTER_PTRN_TOKENIZER   ';'

core/cds/inc/cds_config.h

@@ -65,9 +65,7 @@ enum active_bpf_mode {
  * @sta_mod_dtim: station mode DTIM
  * @sta_dynamic_dtim: station dynamic DTIM
  * @driver_type: Enumeration of Driver Type whether FTM or Mission mode
- * @max_wow_filters: Max wow filters to be configured to fw
  * @wow_enable: Indicate whether wow is enabled or not
- * @ol_ini_info: Status of offload enabled from ini 1st bit for arm,2nd for NS
  * currently rest of bits are not used
  * @ssdp: Indicate ssdp is enabled or not
  * @enable_mc_list : To Check if Multicast list filtering is enabled in FW
@@ -122,9 +120,7 @@ struct cds_config_info {
 	uint8_t sta_mod_dtim;
 	uint8_t sta_dynamic_dtim;
 	enum qdf_driver_type driver_type;
-	uint8_t max_wow_filters;
 	uint8_t wow_enable;
-	uint8_t ol_ini_info;
 	bool ssdp;
 	bool enable_mc_list;
 	uint8_t dfs_phyerr_filter_offload;

core/hdd/inc/wlan_hdd_cfg.h

@@ -10687,28 +10687,6 @@ enum hdd_wext_control {
 #define CFG_WOWL_PATTERN_NAME                  "gWowlPattern"
 #define CFG_WOWL_PATTERN_DEFAULT               ""
 
-/*
- * <ini>
- * gMaxWoWFilters - Maximum WoW patterns that can be configured
- * @Min: 0
- * @Max: WOW_MAX_BITMAP_FILTERS(32)
- * @Default: WOW_MAX_BITMAP_FILTERS(32)
- *
- * This ini is used to set the maximum WoW patterns that can be configured
- *
- * Related: gWowlPattern
- *
- * Supported Feature: Power Save
- *
- * Usage: External
- *
- * </ini>
- */
-#define CFG_MAX_WOW_FILTERS_NAME               "gMaxWoWFilters"
-#define CFG_MAX_WOW_FILTERS_MIN                (0)
-#define CFG_MAX_WOW_FILTERS_MAX                (WOW_MAX_BITMAP_FILTERS)
-#define CFG_MAX_WOW_FILTERS_DEFAULT            (WOW_MAX_BITMAP_FILTERS)
-
 /*
  * <ini>
  * gper_min_rssi_threshold_for_roam -  Minimum roamable AP RSSI for
@@ -14867,7 +14845,6 @@ struct hdd_config {
 #ifdef FEATURE_WLAN_AUTO_SHUTDOWN
 	uint32_t WlanAutoShutdown;
 #endif
-	uint8_t maxWoWFilters;
 	uint8_t wowEnable;
 	uint8_t maxNumberOfPeers;
 	uint8_t disableDFSChSwitch;

core/hdd/inc/wlan_hdd_wowl.h

@@ -103,10 +103,11 @@
  */
 
 #include <qdf_types.h>
+#include "wlan_pmo_wow.h"
 
-#define WOWL_PTRN_MAX_SIZE          146
-#define WOWL_PTRN_MASK_MAX_SIZE      19
-#define WOWL_MAX_PTRNS_ALLOWED       CFG_MAX_WOW_FILTERS_MAX
+#define WOWL_PTRN_MAX_SIZE	146
+#define WOWL_PTRN_MASK_MAX_SIZE	19
+#define WOWL_MAX_PTRNS_ALLOWED	PMO_WOW_FILTERS_MAX
 
 /**
  * hdd_add_wowl_ptrn() - Function which will add the WoWL pattern to be

core/hdd/src/wlan_hdd_cfg.c

@@ -2823,13 +2823,6 @@ struct reg_table_entry g_registry_table[] = {
 		     CFG_VHT_MPDU_LEN_MIN,
 		     CFG_VHT_MPDU_LEN_MAX),
 
-	REG_VARIABLE(CFG_MAX_WOW_FILTERS_NAME, WLAN_PARAM_Integer,
-		     struct hdd_config, maxWoWFilters,
-		     VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK,
-		     CFG_MAX_WOW_FILTERS_DEFAULT,
-		     CFG_MAX_WOW_FILTERS_MIN,
-		     CFG_MAX_WOW_FILTERS_MAX),
-
 	REG_VARIABLE(CFG_WOW_STATUS_NAME, WLAN_PARAM_Integer,
 		     struct hdd_config, wowEnable,
 		     VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,

core/hdd/src/wlan_hdd_main.c

@@ -1998,14 +1998,6 @@ void hdd_update_tgt_cfg(void *context, void *param)
 	 */
 	hdd_update_wiphy_vhtcap(hdd_ctx);
 
-	/*
-	 * If BPF is enabled, maxWowFilters set to WMA_STA_WOW_DEFAULT_PTRN_MAX
-	 * because we need atleast WMA_STA_WOW_DEFAULT_PTRN_MAX free slots to
-	 * configure the STA mode wow pattern.
-	 */
-	if (hdd_ctx->bpf_enabled)
-		hdd_ctx->config->maxWoWFilters = WMA_STA_WOW_DEFAULT_PTRN_MAX;
-
 	hdd_ctx->wmi_max_len = cfg->wmi_max_len;
 
 	/*
@@ -8842,16 +8834,6 @@ static int hdd_update_cds_config(struct hdd_context *hdd_ctx)
 	cds_cfg->sta_mod_dtim = hdd_ctx->config->enableModulatedDTIM;
 	cds_cfg->sta_maxlimod_dtim = hdd_ctx->config->fMaxLIModulatedDTIM;
 	cds_cfg->wow_enable = hdd_ctx->config->wowEnable;
-	cds_cfg->max_wow_filters = hdd_ctx->config->maxWoWFilters;
-
-	/* Here ol_ini_info is used to store ini status of arp offload
-	 * ns offload and others. Currently 1st bit is used for arp
-	 * off load and 2nd bit for ns offload currently, rest bits are unused
-	 */
-	if (hdd_ctx->config->fhostArpOffload)
-		cds_cfg->ol_ini_info = cds_cfg->ol_ini_info | 0x1;
-	if (hdd_ctx->config->fhostNSOffload)
-		cds_cfg->ol_ini_info = cds_cfg->ol_ini_info | 0x2;
 
 	/*
 	 * Copy the DFS Phyerr Filtering Offload status.
@@ -12644,7 +12626,6 @@ static int hdd_update_pmo_config(struct hdd_context *hdd_ctx)
 	psoc_cfg.active_mode_offload = hdd_ctx->config->active_mode_offload;
 	psoc_cfg.ap_arpns_support = hdd_ctx->ap_arpns_support;
 	psoc_cfg.d0_wow_supported = wma_d0_wow_is_supported();
-	psoc_cfg.max_wow_filters = hdd_ctx->config->maxWoWFilters;
 	psoc_cfg.sta_dynamic_dtim = hdd_ctx->config->enableDynamicDTIM;
 	psoc_cfg.sta_mod_dtim = hdd_ctx->config->enableModulatedDTIM;
 	psoc_cfg.sta_max_li_mod_dtim = hdd_ctx->config->fMaxLIModulatedDTIM;

core/hdd/src/wlan_hdd_wowl.c

@@ -33,6 +33,7 @@
 
 /* Include Files */
 
+#include "qdf_str.h"
 #include <wlan_hdd_includes.h>
 #include <wlan_hdd_wowl.h>
 #include <wlan_pmo_wow_public_struct.h>
@@ -81,6 +82,23 @@ static void dump_hdd_wowl_ptrn(struct pmo_wow_add_pattern *ptrn)
 		hdd_info("%02X", ptrn->pattern_mask[i]);
 }
 
+static QDF_STATUS
+hdd_get_num_wow_filters(struct hdd_context *hdd_ctx, uint8_t *num_filters)
+{
+	QDF_STATUS status;
+	struct wlan_objmgr_psoc *psoc = hdd_ctx->hdd_psoc;
+
+	status = wlan_objmgr_psoc_try_get_ref(psoc, WLAN_HDD_ID_OBJ_MGR);
+	if (QDF_IS_STATUS_ERROR(status))
+		return status;
+
+	*num_filters = ucfg_pmo_get_num_wow_filters(hdd_ctx->hdd_psoc);
+
+	wlan_objmgr_psoc_release_ref(psoc, WLAN_HDD_ID_OBJ_MGR);
+
+	return QDF_STATUS_SUCCESS;
+}
+
 /**
  * hdd_add_wowl_ptrn() - Function which will add the WoWL pattern to be
  *			 used when PBM filtering is enabled
@@ -92,49 +110,46 @@ static void dump_hdd_wowl_ptrn(struct pmo_wow_add_pattern *ptrn)
 bool hdd_add_wowl_ptrn(struct hdd_adapter *adapter, const char *ptrn)
 {
 	struct pmo_wow_add_pattern localPattern;
-	int i, first_empty_slot, len, offset;
-	QDF_STATUS qdf_ret_status;
+	int i, empty_slot, len, offset;
+	QDF_STATUS status;
 	const char *temp;
 	uint8_t sessionId = adapter->session_id;
 	struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+	uint8_t num_filters;
 
-	len = find_ptrn_len(ptrn);
+	status = hdd_get_num_wow_filters(hdd_ctx, &num_filters);
+	if (QDF_IS_STATUS_ERROR(status))
+		return false;
 
 	/* There has to have at least 1 byte for each field (pattern
 	 * size, mask size, pattern, mask) e.g. PP:QQ:RR:SS ==> 11
 	 * chars
 	 */
+	len = find_ptrn_len(ptrn);
 	while (len >= 11) {
-		/* Detect duplicate pattern */
-		for (i = 0; i < hdd_ctx->config->maxWoWFilters; i++) {
-			if (g_hdd_wowl_ptrns[i] == NULL)
+		empty_slot = -1;
+
+		/* check if pattern is already configured */
+		for (i = num_filters - 1; i >= 0; i--) {
+			if (g_hdd_wowl_ptrns[i] == NULL) {
+				empty_slot = i;
 				continue;
+			}
 
 			if (!memcmp(ptrn, g_hdd_wowl_ptrns[i], len)) {
-				/* Pattern Already configured, skip to
-				 * next pattern
-				 */
-				hdd_err("Trying to add duplicate WoWL pattern. Skip it!");
+				hdd_err("WoWL pattern '%s' already configured",
+					g_hdd_wowl_ptrns[i]);
 				ptrn += len;
 				goto next_ptrn;
 			}
 		}
 
-		first_empty_slot = -1;
-
-		/* Find an empty slot to store the pattern */
-		for (i = 0; i < hdd_ctx->config->maxWoWFilters; i++) {
-			if (g_hdd_wowl_ptrns[i] == NULL) {
-				first_empty_slot = i;
-				break;
-			}
-		}
-
 		/* Maximum number of patterns have been configured already */
-		if (first_empty_slot == -1) {
-			hdd_err("Cannot add anymore patterns. No free slot!");
+		if (empty_slot == -1) {
+			hdd_err("Max WoW patterns (%u) reached", num_filters);
 			return false;
 		}
+
 		/* Validate the pattern */
 		if (ptrn[2] != WOWL_INTRA_PTRN_TOKENIZER ||
 		    ptrn[5] != WOWL_INTRA_PTRN_TOKENIZER) {
@@ -142,15 +157,14 @@ bool hdd_add_wowl_ptrn(struct hdd_adapter *adapter, const char *ptrn)
 			ptrn += len;
 			goto next_ptrn;
 		}
+
 		/* Extract the pattern size */
 		localPattern.pattern_size =
-			(hex_to_bin(ptrn[0]) * 0x10) +
-						hex_to_bin(ptrn[1]);
+			(hex_to_bin(ptrn[0]) * 0x10) + hex_to_bin(ptrn[1]);
 
 		/* Extract the pattern mask size */
 		localPattern.pattern_mask_size =
-			(hex_to_bin(ptrn[3]) * 0x10) +
-						hex_to_bin(ptrn[4]);
+			(hex_to_bin(ptrn[3]) * 0x10) + hex_to_bin(ptrn[4]);
 
 		if (localPattern.pattern_size > PMO_WOWL_BCAST_PATTERN_MAX_SIZE
 		    || localPattern.pattern_mask_size >
@@ -159,6 +173,7 @@ bool hdd_add_wowl_ptrn(struct hdd_adapter *adapter, const char *ptrn)
 			ptrn += len;
 			goto next_ptrn;
 		}
+
 		/* compute the offset of tokenizer after the pattern */
 		offset = 5 + 2 * localPattern.pattern_size + 1;
 		if ((offset >= len) ||
@@ -167,6 +182,7 @@ bool hdd_add_wowl_ptrn(struct hdd_adapter *adapter, const char *ptrn)
 			ptrn += len;
 			goto next_ptrn;
 		}
+
 		/* compute the end of pattern sring */
 		offset = offset + 2 * localPattern.pattern_mask_size;
 		if (offset + 1 != len) {
@@ -201,28 +217,27 @@ bool hdd_add_wowl_ptrn(struct hdd_adapter *adapter, const char *ptrn)
 		}
 
 		/* All is good. Store the pattern locally */
-		g_hdd_wowl_ptrns[first_empty_slot] =
-			qdf_mem_malloc(len + 1);
-		if (g_hdd_wowl_ptrns[first_empty_slot] == NULL) {
+		g_hdd_wowl_ptrns[empty_slot] = qdf_mem_malloc(len + 1);
+		if (g_hdd_wowl_ptrns[empty_slot] == NULL) {
 			hdd_err("memory allocation failure");
 			return false;
 		}
 
-		memcpy(g_hdd_wowl_ptrns[first_empty_slot], temp, len);
-		g_hdd_wowl_ptrns[first_empty_slot][len] = '\0';
-		localPattern.pattern_id = first_empty_slot;
+		memcpy(g_hdd_wowl_ptrns[empty_slot], temp, len);
+		g_hdd_wowl_ptrns[empty_slot][len] = '\0';
+		localPattern.pattern_id = empty_slot;
 		localPattern.pattern_byte_offset = 0;
 		localPattern.session_id = sessionId;
 
 		/* Register the pattern downstream */
-		qdf_ret_status = pmo_ucfg_add_wow_user_pattern(
+		status = pmo_ucfg_add_wow_user_pattern(
 					adapter->hdd_vdev, &localPattern);
-		if (!QDF_IS_STATUS_SUCCESS(qdf_ret_status)) {
+		if (QDF_IS_STATUS_ERROR(status)) {
 			/* Add failed, so invalidate the local storage */
 			hdd_err("sme_wowl_add_bcast_pattern failed with error code (%d)",
-				  qdf_ret_status);
-			qdf_mem_free(g_hdd_wowl_ptrns[first_empty_slot]);
-			g_hdd_wowl_ptrns[first_empty_slot] = NULL;
+				status);
+			qdf_mem_free(g_hdd_wowl_ptrns[empty_slot]);
+			g_hdd_wowl_ptrns[empty_slot] = NULL;
 		}
 
 		dump_hdd_wowl_ptrn(&localPattern);
@@ -233,8 +248,9 @@ next_ptrn:
 			ptrn += 1;
 			len = find_ptrn_len(ptrn);
 			continue;
-		} else
+		} else {
 			break;
+		}
 	}
 
 	return true;
@@ -249,36 +265,42 @@ next_ptrn:
  */
 bool hdd_del_wowl_ptrn(struct hdd_adapter *adapter, const char *ptrn)
 {
-	unsigned char id;
+	uint8_t id;
 	bool patternFound = false;
-	QDF_STATUS qdf_ret_status;
+	QDF_STATUS status;
 	struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+	uint8_t num_filters;
+
+	status = hdd_get_num_wow_filters(hdd_ctx, &num_filters);
+	if (QDF_IS_STATUS_ERROR(status))
+		return false;
+
+	/* lookup pattern */
+	for (id = 0; id < num_filters; id++) {
+		if (!g_hdd_wowl_ptrns[id])
+			continue;
 
-	/* Detect pattern */
-	for (id = 0;
-	     id < hdd_ctx->config->maxWoWFilters
-	     && g_hdd_wowl_ptrns[id] != NULL; id++) {
-		if (!strcmp(ptrn, g_hdd_wowl_ptrns[id])) {
+		if (qdf_str_eq(ptrn, g_hdd_wowl_ptrns[id])) {
 			patternFound = true;
 			break;
 		}
 	}
 
 	/* If pattern present, remove it from downstream */
-	if (patternFound) {
-		qdf_ret_status = pmo_ucfg_del_wow_user_pattern(
-					adapter->hdd_vdev, id);
-		if (QDF_IS_STATUS_SUCCESS(qdf_ret_status)) {
-			/* Remove from local storage as well */
-			hdd_err("Deleted pattern with id %d [%s]", id,
-				  g_hdd_wowl_ptrns[id]);
-
-			qdf_mem_free(g_hdd_wowl_ptrns[id]);
-			g_hdd_wowl_ptrns[id] = NULL;
-			return true;
-		}
-	}
-	return false;
+	if (!patternFound)
+		return false;
+
+	status = pmo_ucfg_del_wow_user_pattern(adapter->hdd_vdev, id);
+	if (QDF_IS_STATUS_ERROR(status))
+		return false;
+
+	/* Remove from local storage as well */
+	hdd_err("Deleted pattern with id %d [%s]", id, g_hdd_wowl_ptrns[id]);
+
+	qdf_mem_free(g_hdd_wowl_ptrns[id]);
+	g_hdd_wowl_ptrns[id] = NULL;
+
+	return true;
 }
 
 /**

core/wma/inc/wma.h

@@ -270,7 +270,6 @@ enum ds_mode {
 #define WMA_NUM_BITS_IN_BYTE           8
 
 #define WMA_AP_WOW_DEFAULT_PTRN_MAX    4
-#define WMA_STA_WOW_DEFAULT_PTRN_MAX   5
 
 #define WMA_BSS_STATUS_STARTED 0x1
 #define WMA_BSS_STATUS_STOPPED 0x2
@@ -1277,7 +1276,6 @@ struct hw_mode_idx_to_mac_cap_idx {
  * @pGetRssiReq: get RSSI request
  * @thermal_mgmt_info: Thermal mitigation related info
  * @roam_offload_enabled: is roam offload enable/disable
- * @ol_ini_info: store ini status of arp offload, ns offload
  * @ssdp: ssdp flag
  * @enable_mc_list : To Check if Multicast list filtering is enabled in FW
  * @ibss_started: is IBSS started or not
@@ -1427,13 +1425,6 @@ typedef struct {
 	struct qdf_mac_addr peer_macaddr;
 	t_thermal_mgmt thermal_mgmt_info;
 	bool roam_offload_enabled;
-	/* Here ol_ini_info is used to store ini
-	 * status of arp offload, ns offload
-	 * and others. Currently 1st bit is used
-	 * for arp off load and 2nd bit for ns
-	 * offload currently, rest bits are unused
-	 */
-	uint8_t ol_ini_info;
 	bool ssdp;
 	bool enable_mc_list;
 	uint8_t ibss_started;

core/wma/src/wma_main.c

@@ -2972,7 +2972,6 @@ QDF_STATUS wma_open(struct wlan_objmgr_psoc *psoc,
 
 	cds_cfg->max_bssid = WMA_MAX_SUPPORTED_BSS;
 
-	wlan_res_cfg->num_wow_filters = cds_cfg->max_wow_filters;
 	wlan_res_cfg->num_keep_alive_pattern = WMA_MAXNUM_PERIODIC_TX_PTRNS;
 
 	/* The current firmware implementation requires the number of
@@ -2984,7 +2983,6 @@ QDF_STATUS wma_open(struct wlan_objmgr_psoc *psoc,
 	wlan_res_cfg->num_offload_reorder_buffs =
 		cds_cfg->ap_maxoffload_reorderbuffs + 1;
 
-	wma_handle->ol_ini_info = cds_cfg->ol_ini_info;
 	wma_handle->max_station = cds_cfg->max_station;
 	wma_handle->max_bssid = cds_cfg->max_bssid;
 	wma_handle->driver_type = cds_cfg->driver_type;