Merge "qca-wifi: Add RDK statistics cache module code"

dp/inc/dp_rate_stats.h

@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2019 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * @file: dp_rate_stats.h
+ * @brief: Define peer rate statistics related objects and APIs
+ */
+
+#ifndef _DP_RATE_STATS_
+#define _DP_RATE_STATS_
+
+#include <cdp_txrx_handle.h>
+#include <qdf_nbuf.h>
+#include <wdi_event_api.h>
+
+#ifdef QCA_SUPPORT_RDK_STATS
+
+#include <qdf_util.h>
+#include <cdp_txrx_cmn_struct.h>
+#include <cdp_txrx_cmn.h>
+#include <dp_ratetable.h>
+#include <dp_rate_stats_pub.h>
+
+#define RATE_STATS_LOCK_CREATE(lock) qdf_spinlock_create(lock)
+#define RATE_STATS_LOCK_DESTROY(lock) qdf_spinlock_destroy(lock)
+#define RATE_STATS_LOCK_ACQUIRE(lock) qdf_spin_lock_bh(lock)
+#define RATE_STATS_LOCK_RELEASE(lock) qdf_spin_unlock_bh(lock)
+
+struct cdp_pdev;
+
+/**
+ * struct wlan_peer_tx_rate_stats - peer tx rate statistics
+ * @stats: array containing tx rate stats
+ * @cur_rix: rate index updated last in list
+ * @lock: lock protecting list
+ * @sojourn: sojourn statistics
+ */
+struct wlan_peer_tx_rate_stats {
+	struct wlan_tx_rate_stats stats[WLANSTATS_CACHE_SIZE];
+	struct wlan_tx_sojourn_stats sojourn;
+	uint32_t cur_rix;
+	uint8_t cur_cache_idx;
+	qdf_spinlock_t lock;
+};
+
+/**
+ * struct wlan_peer_rx_rate_stats - Peer Rx rate statistics
+ * @stats: array containing rx rate stats
+ * @cur_rix: rate index updated last in list
+ * @lock: lock protecting list
+ */
+struct wlan_peer_rx_rate_stats {
+	struct wlan_rx_rate_stats stats[WLANSTATS_CACHE_SIZE];
+	uint32_t cur_rix;
+	uint32_t cur_cache_idx;
+	qdf_spinlock_t lock;
+};
+
+/**
+ * struct wlan_peer_rate_stats - Peer rate statistics ctx
+ * @tx: tx rate statistics
+ * @rx: rx rate statistics
+ * @mac_addr: peer MAC address
+ * @peer_cookie: cookie for unique session of peer
+ * @pdev: dp pdev
+ */
+struct wlan_peer_rate_stats_ctx {
+	struct wlan_peer_tx_rate_stats tx;
+	struct wlan_peer_rx_rate_stats rx;
+	uint8_t mac_addr[WLAN_MAC_ADDR_LEN];
+	uint64_t peer_cookie;
+	struct cdp_pdev *pdev;
+};
+
+/**
+ * struct wlan_soc_rate_stats_ctx - rate stats context at soc level
+ * @soc: Opaque soc handle
+ * @txs_cache_flush: tx stats flush count
+ * @rxs_cache_flush: rx stats flush count
+ * @txs_last_idx_cache_hit: cache hit for rate index received as last rate index
+ * @txs_cache_hit: tx stats cache hit for rate index received from cache db
+ * @rxs_last_idx_cache_hit: cache hit for rate index received as last rate index
+ * @rxs_cache_hit: cache hit for rate index received from cache database
+ * @txs_cache_miss: rate index recevied is not in cache database
+ * @rxs_cache_miss: rate index recevied is not in cache database
+ */
+struct wlan_soc_rate_stats_ctx {
+	struct cdp_soc_t *soc;
+	uint32_t txs_cache_flush;
+	uint32_t rxs_cache_flush;
+	uint32_t txs_last_idx_cache_hit;
+	uint32_t txs_cache_hit;
+	uint32_t rxs_last_idx_cache_hit;
+	uint32_t rxs_cache_hit;
+	uint32_t txs_cache_miss;
+	uint32_t rxs_cache_miss;
+};
+
+/**
+ * wlan_peer_update_rate_stats ()- WDI handler to update rate stats
+ * @ctx: soc level stats context
+ * @event: WDI event enum
+ * @stats: buffer containing cdp_peer_tx_rate_stats_intf or
+ * cdp_peer_rx_rate_stats_intf
+ * @peer_id: peer id
+ * @type: enum wlan_rate_stats_type
+ */
+
+void wlan_peer_update_rate_stats(void *ctx,
+				 enum WDI_EVENT event,
+				 void *stats, uint16_t peer_id,
+				 uint32_t type);
+
+/**
+ * wlan_cfg80211_flush_rate_stats ()- os_if layer handler to
+ * flush rate statistics
+ * @pdev: Ctrl pdev
+ * @event: WDI event enum
+ * @ptr: Stats buffer
+ * @peer_id: peer id
+ * @status: status
+ */
+void wlan_cfg80211_flush_rate_stats(void *ctrl_pdev, enum WDI_EVENT event,
+				    void *ptr, uint16_t peer_id,
+				    uint32_t status);
+
+/**
+ * wlan_peer_create_event_handler ()- peer create event handler
+ * to initialize statistics objects
+ * @pdev: Ctrl pdev
+ * @event: WDI event enum
+ * @peer_mac: Peer MAC address
+ * @buf: Stats buffer
+ * @peer_id: peer id
+ * @status: status
+ */
+void wlan_peer_create_event_handler(void *pdev, enum WDI_EVENT event,
+				    void *buf, uint16_t peer_id,
+				    uint32_t status);
+
+/**
+ * wlan_peer_destroy_event_handler ()- peer destroy event handler
+ * to deinitilize statistics objects
+ * @pdev: Ctrl pdev
+ * @event: WDI event enum
+ * @peer_mac: Peer MAC address
+ * @buf: Stats buffer
+ * @peer_id: peer id
+ * @status: status
+ */
+void wlan_peer_destroy_event_handler(void *pdev, enum WDI_EVENT event,
+				     void *buf, uint16_t peer_id,
+				     uint32_t status);
+
+/**
+ * wlan_peer_rate_stats_flush_req ()- stats flush request event handler
+ * This flushes statistics to user space entity
+ * @pdev: Ctrl pdev
+ * @event: WDI event enum
+ * @buf: Stats buffer
+ * @peer_id: peer id
+ * @status: status
+ */
+void wlan_peer_rate_stats_flush_req(void *pdev, enum WDI_EVENT event,
+				    void *buf, uint16_t peer_id,
+				    uint32_t status);
+
+#else
+static inline void
+wlan_peer_update_rate_stats(void *pdev, enum WDI_EVENT event,
+			    void *stats, uint16_t peer_id,
+			    uint32_t type)
+{
+}
+
+static inline void
+wlan_cfg80211_flush_rate_stats(void *ctrl_pdev, enum WDI_EVENT event,
+			       void *ptr, uint16_t peer_id,
+			       uint32_t status)
+{
+}
+
+static inline void
+wlan_peer_create_event_handler(void *pdev, enum WDI_EVENT event,
+			       void *buf, uint16_t peer_id,
+			       uint32_t type)
+{
+}
+
+static inline void
+wlan_peer_destroy_event_handler(void *pdev, enum WDI_EVENT event,
+				void *buf, uint16_t peer_id,
+				uint32_t type)
+{
+}
+
+static inline void
+wlan_peer_rate_stats_flush_req(void *pdev,
+			       enum WDI_EVENT event,
+			       void *buf, uint16_t peer_id,
+			       uint32_t type)
+{
+}
+#endif /* QCA_SUPPORT_RDK_STATS */
+#endif /* _DP_RATE_STATS_ */

dp/inc/dp_rate_stats_pub.h

@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2019 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * @file: dp_rate_stats_pub.h
+ * @breief: Define peer rate statistics related objects and APIs
+ * accessed required for user space tools
+ */
+
+#ifndef _DP_RATE_STATS_UAPI_
+#define _DP_RATE_STATS_UAPI_
+
+#define WLANSTATS_CACHE_SIZE 10
+#define MAX_RSSI_ANT 4
+#define MAX_RSSI_HT 4
+#define WLAN_DATA_TID_MAX 8
+#define WLAN_MAC_ADDR_LEN 6
+#define WLANSTATS_RSSI_OFFSET 8
+#define WLANSTATS_RSSI_MASK 0xff
+#define WLANSTATS_RSSI_MAX 0x80
+
+#ifndef __KERNEL__
+#define qdf_ewma_tx_lag int
+#define qdf_ewma_rx_rssi int
+#else
+#include <cdp_txrx_cmn_struct.h>
+QDF_DECLARE_EWMA(rx_rssi, 1024, 8)
+#endif
+
+/**
+ * enum cdp_peer_rate_stats_cmd -
+ * used by app to get specific stats
+ */
+enum wlan_peer_rate_stats_cmd {
+	DP_PEER_RX_RATE_STATS,
+	DP_PEER_TX_RATE_STATS,
+	DP_PEER_SOJOURN_STATS,
+};
+
+/** struct wlan_tx_rate_stats - Tx packet rate info
+ * @rix: Rate index derived from nss, mcs, preamble, ht, sgi
+ * @rate: Data rate in kbps
+ * @mpdu_success: success mpdus count
+ * @mpdu_attempts: attempt mpdus count
+ * @num_ppdus: ppdu count
+ */
+struct wlan_tx_rate_stats {
+	uint32_t rix;
+	uint32_t rate;
+	uint32_t mpdu_success;
+	uint32_t mpdu_attempts;
+	uint32_t num_ppdus;
+};
+
+/** struct wlan_rx_rate_stats - Rx rate packet info
+ * @rix: Rate index derived from nss, mcs, preamble, ht, sgi
+ * @rate: Data rate in kbps
+ * @num_bytes: num of bytes
+ * @num_msdus: num of msdus
+ * @num_mpdus: num of mpdus
+ * @num_ppdus: num of ppdus
+ * @num_retries: num of retries
+ * @num_sgi: num of short guard interval
+ */
+struct wlan_rx_rate_stats {
+	uint32_t rix;
+	uint32_t rate;
+	uint32_t num_bytes;
+	uint32_t num_msdus;
+	uint32_t num_mpdus;
+	uint32_t num_ppdus;
+	uint32_t num_retries;
+	uint32_t num_sgi;
+	qdf_ewma_rx_rssi avg_rssi;
+	qdf_ewma_rx_rssi avg_rssi_ant[MAX_RSSI_ANT][MAX_RSSI_HT];
+};
+
+/*
+ * struct wlan_tx_sojourn_stats - Tx sojourn stats
+ * @ppdu_seq_id: ppdu_seq_id from tx completion
+ * @avg_sojourn_msdu: average sojourn msdu time
+ * @sum_sojourn_msdu: sum sojourn msdu time
+ * @num_msdu: number of msdus per ppdu
+ * @cookie: cookie to be used by upper layer
+ */
+struct wlan_tx_sojourn_stats {
+	uint32_t ppdu_seq_id;
+	qdf_ewma_tx_lag avg_sojourn_msdu[WLAN_DATA_TID_MAX];
+	uint32_t sum_sojourn_msdu[WLAN_DATA_TID_MAX];
+	uint32_t num_msdus[WLAN_DATA_TID_MAX];
+	void *cookie;
+};
+
+/**
+ * struct wlan_peer_rate_stats_intf - Interface structure to
+ * flush stats to user spave entity
+ * @stats: statistics buffer
+ * @buf_len: buffer len
+ * @peer_mac: peer mac address
+ * @stats_type: statistics type
+ * @cookie: peer cookie
+ */
+struct wlan_peer_rate_stats_intf {
+	void *stats;
+	uint32_t buf_len;
+	uint8_t peer_mac[WLAN_MAC_ADDR_LEN];
+	uint8_t stats_type;
+	uint64_t cookie;
+};
+#endif /* _DP_RATE_STATS_UAPI_ */

dp/src/dp_rate_stats.c

@@ -0,0 +1,388 @@
+/*
+ * Copyright (c) 2019 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * @file: dp_rate_stats.c
+ * @breief: Core peer rate statistics processing module
+ */
+
+#include "dp_rate_stats.h"
+#include "dp_rate_stats_pub.h"
+
+#ifdef QCA_SUPPORT_RDK_STATS
+
+static void
+wlan_peer_flush_rx_rate_stats(struct wlan_soc_rate_stats_ctx *soc_stats_ctx,
+			      struct wlan_peer_rate_stats_ctx *stats_ctx)
+{
+	struct wlan_peer_rate_stats_intf buf;
+	struct wlan_peer_rx_rate_stats *rx_stats;
+
+	if (!soc_stats_ctx)
+		return;
+	rx_stats = &stats_ctx->rx;
+
+	buf.stats = (struct wlan_rx_rate_stats *)rx_stats->stats;
+	buf.buf_len = WLANSTATS_CACHE_SIZE * sizeof(struct wlan_rx_rate_stats);
+	buf.stats_type = DP_PEER_RX_RATE_STATS;
+	buf.cookie = stats_ctx->peer_cookie;
+	qdf_mem_copy(buf.peer_mac, stats_ctx->mac_addr, WLAN_MAC_ADDR_LEN);
+	cdp_peer_flush_rate_stats(soc_stats_ctx->soc,
+				  stats_ctx->pdev, &buf);
+
+	soc_stats_ctx->rxs_cache_flush++;
+	qdf_info("rxs_cache_flush: %d", soc_stats_ctx->rxs_cache_flush);
+
+	qdf_mem_zero(rx_stats->stats, WLANSTATS_CACHE_SIZE *
+		     sizeof(struct wlan_rx_rate_stats));
+}
+
+static void
+wlan_peer_flush_tx_rate_stats(struct wlan_soc_rate_stats_ctx *soc_stats_ctx,
+			      struct wlan_peer_rate_stats_ctx *stats_ctx)
+{
+	struct wlan_peer_rate_stats_intf buf;
+	struct wlan_peer_tx_rate_stats *tx_stats;
+
+	if (!soc_stats_ctx)
+		return;
+
+	tx_stats = &stats_ctx->tx;
+	buf.stats = (struct wlan_tx_rate_stats *)tx_stats->stats;
+	buf.buf_len = (WLANSTATS_CACHE_SIZE * sizeof(struct wlan_tx_rate_stats)
+		       + sizeof(struct wlan_tx_sojourn_stats));
+	buf.stats_type = DP_PEER_TX_RATE_STATS;
+	buf.cookie = stats_ctx->peer_cookie;
+	qdf_mem_copy(buf.peer_mac, stats_ctx->mac_addr, WLAN_MAC_ADDR_LEN);
+	cdp_peer_flush_rate_stats(soc_stats_ctx->soc,
+				  stats_ctx->pdev, &buf);
+
+	soc_stats_ctx->txs_cache_flush++;
+	qdf_info("txs_cache_flush: %d", soc_stats_ctx->txs_cache_flush);
+
+	qdf_mem_zero(tx_stats->stats, WLANSTATS_CACHE_SIZE *
+		     sizeof(struct wlan_tx_rate_stats) +
+		     sizeof(struct wlan_tx_sojourn_stats));
+}
+
+static void
+wlan_peer_flush_rate_stats(struct wlan_soc_rate_stats_ctx *soc_stats_ctx,
+			   struct wlan_peer_rate_stats_ctx *stats_ctx)
+{
+	struct wlan_peer_tx_rate_stats *tx_stats;
+	struct wlan_peer_rx_rate_stats *rx_stats;
+
+	tx_stats = &stats_ctx->tx;
+	rx_stats = &stats_ctx->rx;
+
+	RATE_STATS_LOCK_ACQUIRE(&tx_stats->lock);
+	wlan_peer_flush_tx_rate_stats(soc_stats_ctx, stats_ctx);
+	RATE_STATS_LOCK_RELEASE(&tx_stats->lock);
+
+	RATE_STATS_LOCK_ACQUIRE(&rx_stats->lock);
+	wlan_peer_flush_rx_rate_stats(soc_stats_ctx, stats_ctx);
+	RATE_STATS_LOCK_RELEASE(&rx_stats->lock);
+}
+
+void wlan_peer_rate_stats_flush_req(void *ctx, enum WDI_EVENT event,
+				    void *buf, uint16_t peer_id,
+				    uint32_t type)
+{
+	if (buf)
+		wlan_peer_flush_rate_stats(ctx, buf);
+}
+
+static inline void
+__wlan_peer_update_rx_rate_stats(struct wlan_rx_rate_stats *__rx_stats,
+				 struct cdp_rx_indication_ppdu *cdp_rx_ppdu)
+{
+	uint8_t ant, ht;
+
+	__rx_stats->rix = cdp_rx_ppdu->rix;
+	__rx_stats->rate = cdp_rx_ppdu->rx_ratekbps;
+	__rx_stats->num_bytes += cdp_rx_ppdu->num_bytes;
+	__rx_stats->num_msdus += cdp_rx_ppdu->num_msdu;
+	__rx_stats->num_mpdus += cdp_rx_ppdu->num_mpdu;
+	__rx_stats->num_retries += cdp_rx_ppdu->retries;
+	__rx_stats->num_ppdus += 1;
+
+	if (cdp_rx_ppdu->u.gi)
+		__rx_stats->num_sgi++;
+
+	qdf_ewma_rx_rssi_add(&__rx_stats->avg_rssi, cdp_rx_ppdu->rssi);
+
+	for (ant = 0; ant < MAX_RSSI_ANT; ant++) {
+		for (ht = 0; ht < MAX_RSSI_HT; ht++)
+			qdf_ewma_rx_rssi_add(&__rx_stats->avg_rssi_ant[ant][ht],
+					     cdp_rx_ppdu->rssi_chain[ant][ht]);
+	}
+}
+
+static void
+wlan_peer_update_rx_rate_stats(struct wlan_soc_rate_stats_ctx *soc_stats_ctx,
+			       struct cdp_rx_indication_ppdu *cdp_rx_ppdu)
+{
+	struct wlan_peer_rate_stats_ctx *stats_ctx;
+	struct wlan_peer_rx_rate_stats *rx_stats;
+	struct wlan_rx_rate_stats *__rx_stats;
+	uint8_t cache_idx;
+	bool idx_match = false;
+
+	stats_ctx = (struct wlan_peer_rate_stats_ctx *)cdp_rx_ppdu->cookie;
+	rx_stats = &stats_ctx->rx;
+
+	if (qdf_unlikely(cdp_rx_ppdu->rix > DP_RATE_TABLE_SIZE)) {
+		qdf_warn("Invalid rate index, return");
+		return;
+	}
+
+	RATE_STATS_LOCK_ACQUIRE(&rx_stats->lock);
+	if (qdf_likely(rx_stats->cur_rix == cdp_rx_ppdu->rix)) {
+		__rx_stats = &rx_stats->stats[rx_stats->cur_cache_idx];
+		__wlan_peer_update_rx_rate_stats(__rx_stats,
+						 cdp_rx_ppdu);
+
+		soc_stats_ctx->rxs_last_idx_cache_hit++;
+		goto done;
+	}
+
+	/* check if cache is available */
+	for (cache_idx = 0; cache_idx < WLANSTATS_CACHE_SIZE; cache_idx++) {
+		__rx_stats = &rx_stats->stats[cache_idx];
+		if (!__rx_stats->rix || (__rx_stats->rix == cdp_rx_ppdu->rix)) {
+			idx_match = true;
+			break;
+		}
+	}
+	/* if index matches or found empty index, update stats to that
+	 * cache index else flush cache and update stats to cache index zero
+	 */
+	if (idx_match) {
+		__wlan_peer_update_rx_rate_stats(__rx_stats,
+						 cdp_rx_ppdu);
+		rx_stats->cur_rix = cdp_rx_ppdu->rix;
+		rx_stats->cur_cache_idx = cache_idx;
+		soc_stats_ctx->rxs_cache_hit++;
+		goto done;
+	} else {
+		wlan_peer_flush_rx_rate_stats(soc_stats_ctx, stats_ctx);
+		__rx_stats = &rx_stats->stats[0];
+		__wlan_peer_update_rx_rate_stats(__rx_stats,
+						 cdp_rx_ppdu);
+		rx_stats->cur_rix = cdp_rx_ppdu->rix;
+		rx_stats->cur_cache_idx = 0;
+		soc_stats_ctx->rxs_cache_miss++;
+	}
+done:
+	RATE_STATS_LOCK_RELEASE(&rx_stats->lock);
+}
+
+static inline void
+__wlan_peer_update_tx_rate_stats(struct wlan_tx_rate_stats *__tx_stats,
+				 struct cdp_tx_completion_ppdu_user *ppdu_user)
+{
+	uint8_t num_ppdus;
+	uint8_t mpdu_attempts;
+	uint8_t mpdu_success;
+
+	num_ppdus = ppdu_user->long_retries + 1;
+	mpdu_attempts = num_ppdus * ppdu_user->mpdu_tried_ucast;
+	mpdu_success = ppdu_user->mpdu_tried_ucast - ppdu_user->mpdu_failed;
+
+	__tx_stats->rix = ppdu_user->rix;
+	__tx_stats->rate = ppdu_user->tx_rate;
+	__tx_stats->num_ppdus += num_ppdus;
+	__tx_stats->mpdu_attempts += mpdu_attempts;
+	__tx_stats->mpdu_success += mpdu_success;
+}
+
+static void
+wlan_peer_update_tx_rate_stats(struct wlan_soc_rate_stats_ctx *soc_stats_ctx,
+			       struct cdp_tx_completion_ppdu *cdp_tx_ppdu)
+{
+	struct cdp_tx_completion_ppdu_user *ppdu_user;
+	struct wlan_peer_rate_stats_ctx *stats_ctx;
+	struct wlan_peer_tx_rate_stats *tx_stats;
+	struct wlan_tx_rate_stats *__tx_stats;
+	uint8_t cache_idx;
+	uint8_t user_idx;
+	bool idx_match = false;
+
+	for (user_idx = 0; user_idx < cdp_tx_ppdu->num_users; user_idx++) {
+		ppdu_user = &cdp_tx_ppdu->user[user_idx];
+		stats_ctx = (struct wlan_peer_rate_stats_ctx *)
+				ppdu_user->cookie;
+		tx_stats = &stats_ctx->tx;
+		RATE_STATS_LOCK_ACQUIRE(&tx_stats->lock);
+
+		if (qdf_unlikely(ppdu_user->rix > DP_RATE_TABLE_SIZE)) {
+			qdf_warn("Invalid rate index, continue.");
+			RATE_STATS_LOCK_RELEASE(&tx_stats->lock);
+			continue;
+		}
+		if (qdf_likely(tx_stats->cur_rix == ppdu_user->rix)) {
+			__tx_stats = &tx_stats->stats[tx_stats->cur_cache_idx];
+			__wlan_peer_update_tx_rate_stats(__tx_stats, ppdu_user);
+			soc_stats_ctx->txs_last_idx_cache_hit++;
+			RATE_STATS_LOCK_RELEASE(&tx_stats->lock);
+			continue;
+		}
+
+		/* check if cache is available */
+		for (cache_idx = 0; cache_idx < WLANSTATS_CACHE_SIZE;
+					cache_idx++) {
+			__tx_stats = &tx_stats->stats[cache_idx];
+			if (!__tx_stats->rix ||
+			    (__tx_stats->rix == ppdu_user->rix)) {
+				idx_match = true;
+				break;
+			}
+		}
+		/* if index matches or found empty index,
+		 * update stats to that cache index
+		 * else flush cache and update stats to cache index zero
+		 */
+		if (idx_match) {
+			soc_stats_ctx->txs_cache_hit++;
+
+			__wlan_peer_update_tx_rate_stats(__tx_stats,
+							 ppdu_user);
+			tx_stats->cur_rix = ppdu_user->rix;
+			tx_stats->cur_cache_idx = cache_idx;
+		} else {
+			soc_stats_ctx->txs_cache_miss++;
+
+			wlan_peer_flush_tx_rate_stats(soc_stats_ctx, stats_ctx);
+			__tx_stats = &tx_stats->stats[0];
+			__wlan_peer_update_tx_rate_stats(__tx_stats,
+							 ppdu_user);
+			tx_stats->cur_rix = ppdu_user->rix;
+			tx_stats->cur_cache_idx = 0;
+		}
+		RATE_STATS_LOCK_RELEASE(&tx_stats->lock);
+	}
+}
+
+static void
+wlan_peer_update_sojourn_stats(void *ctx,
+			       struct cdp_tx_sojourn_stats *sojourn_stats)
+{
+	struct wlan_peer_rate_stats_ctx *stats_ctx;
+	struct wlan_peer_tx_rate_stats *tx_stats;
+	uint8_t tid;
+
+	stats_ctx = (struct wlan_peer_rate_stats_ctx *)sojourn_stats->cookie;
+	tx_stats = &stats_ctx->tx;
+
+	RATE_STATS_LOCK_ACQUIRE(&tx_stats->lock);
+	for (tid = 0; tid < CDP_DATA_TID_MAX; tid++) {
+		qdf_ewma_tx_lag_add(&tx_stats->sojourn.avg_sojourn_msdu[tid],
+				    sojourn_stats->sum_sojourn_msdu[tid]);
+
+		tx_stats->sojourn.sum_sojourn_msdu[tid] +=
+			sojourn_stats->sum_sojourn_msdu[tid];
+
+		tx_stats->sojourn.num_msdus[tid] +=
+			sojourn_stats->num_msdus[tid];
+	}
+	RATE_STATS_LOCK_RELEASE(&tx_stats->lock);
+}
+
+void wlan_peer_update_rate_stats(void *ctx,
+				 enum WDI_EVENT event,
+				 void *buf, uint16_t peer_id,
+				 uint32_t stats_type)
+{
+	struct wlan_soc_rate_stats_ctx *soc_stats_ctx;
+	struct cdp_tx_completion_ppdu *cdp_tx_ppdu;
+	struct cdp_rx_indication_ppdu *cdp_rx_ppdu;
+	struct cdp_tx_sojourn_stats *sojourn_stats;
+	qdf_nbuf_t nbuf;
+
+	if (qdf_unlikely(!buf))
+		return;
+
+	if (qdf_unlikely(!ctx))
+		return;
+
+	soc_stats_ctx = ctx;
+	nbuf = buf;
+
+	switch (event) {
+	case WDI_EVENT_TX_PPDU_DESC:
+		cdp_tx_ppdu = (struct cdp_tx_completion_ppdu *)
+					qdf_nbuf_data(nbuf);
+		wlan_peer_update_tx_rate_stats(soc_stats_ctx, cdp_tx_ppdu);
+		break;
+	case WDI_EVENT_RX_PPDU_DESC:
+		cdp_rx_ppdu = (struct cdp_rx_indication_ppdu *)
+					qdf_nbuf_data(nbuf);
+		wlan_peer_update_rx_rate_stats(soc_stats_ctx, cdp_rx_ppdu);
+		break;
+	case WDI_EVENT_TX_SOJOURN_STAT:
+		sojourn_stats = (struct cdp_tx_sojourn_stats *)
+					qdf_nbuf_data(nbuf);
+		wlan_peer_update_sojourn_stats(soc_stats_ctx, sojourn_stats);
+		break;
+	default:
+		qdf_err("Err, Invalid type");
+	}
+}
+
+void wlan_peer_create_event_handler(void *pdev, enum WDI_EVENT event,
+				    void *buf, uint16_t peer_id,
+				    uint32_t type)
+{
+	struct cdp_peer_cookie *peer_info;
+	struct wlan_peer_rate_stats_ctx *stats;
+
+	peer_info = (struct cdp_peer_cookie *)buf;
+	stats = qdf_mem_malloc(sizeof(*stats));
+	if (!stats) {
+		qdf_err("malloc failed, returning NULL");
+		return;
+	}
+	qdf_mem_zero(stats, sizeof(*stats));
+	RATE_STATS_LOCK_CREATE(&stats->tx.lock);
+	RATE_STATS_LOCK_CREATE(&stats->rx.lock);
+	qdf_mem_copy(stats->mac_addr, peer_info->mac_addr, CDP_MAC_ADDR_LEN);
+	stats->peer_cookie = peer_info->cookie;
+	stats->pdev = pdev;
+
+	peer_info->ctx = (void *)stats;
+}
+
+void wlan_peer_destroy_event_handler(void *ctx, enum WDI_EVENT event,
+				     void *buf, uint16_t peer_id,
+				     uint32_t type)
+{
+	struct cdp_peer_cookie *peer_info;
+	struct wlan_peer_rate_stats_ctx *stats;
+
+	peer_info = (struct cdp_peer_cookie *)buf;
+	stats = (struct wlan_peer_rate_stats_ctx *)peer_info->ctx;
+
+	if (stats) {
+		wlan_peer_flush_rate_stats(ctx, stats);
+		RATE_STATS_LOCK_DESTROY(&stats->tx.lock);
+		RATE_STATS_LOCK_DESTROY(&stats->rx.lock);
+		qdf_mem_free(stats);
+		qdf_info("DEBUG DEiniitialized rate stats");
+	}
+}
+#endif