qcacmn: Link switch initial checkin

Add new file wlan_mlo_mgr_link_switch.h and .c
which contains MLO manager public file containing
link switch functionality.

Change-Id: I2bce76e7de09a1c9ba4a4cdd83855db41166739b
CRs-Fixed: 3530571

umac/mlo_mgr/inc/wlan_mlo_mgr_link_switch.h

@@ -0,0 +1,259 @@
+/*
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. 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.
+ */
+
+/*
+ * DOC: contains MLO manager public file containing link switch functionality
+ */
+#ifndef _WLAN_MLO_MGR_LINK_SWITCH_H_
+#define _WLAN_MLO_MGR_LINK_SWITCH_H_
+
+#include <wlan_mlo_mgr_public_structs.h>
+
+struct wlan_channel;
+
+#define WLAN_MLO_LSWITCH_MAX_HISTORY 5
+#ifndef WLAN_MAX_ML_BSS_LINKS
+#define WLAN_MAX_ML_BSS_LINKS 1
+#endif
+
+/**
+ * enum wlan_mlo_link_switch_cnf_reason: Link Switch reject reason
+ *
+ * @MLO_LINK_SWITCH_CNF_REASON_BSS_PARAMS_CHANGED: Link's BSS params changed
+ * @MLO_LINK_SWITCH_CNF_REASON_CONCURRECNY_CONFLICT: Rejected because of
+ * Concurrency
+ * @MLO_LINK_SWITCH_CNF_REASON_HOST_INTERNAL_ERROR: Host internal error
+ * @MLO_LINK_SWITCH_CNF_REASON_MAX: Maximum reason for link switch rejection
+ */
+enum wlan_mlo_link_switch_cnf_reason {
+	MLO_LINK_SWITCH_CNF_REASON_BSS_PARAMS_CHANGED = 1,
+	MLO_LINK_SWITCH_CNF_REASON_CONCURRECNY_CONFLICT = 2,
+	MLO_LINK_SWITCH_CNF_REASON_HOST_INTERNAL_ERROR = 3,
+	MLO_LINK_SWITCH_CNF_REASON_MAX,
+};
+
+/**
+ * enum wlan_mlo_link_switch_cnf_status: Link Switch Confirmation status
+ *
+ * @MLO_LINK_SWITCH_CNF_STATUS_ACCEPT: Link switch accepted
+ * @MLO_LINK_SWITCH_CNF_STATUS_REJECT: Rejected because link switch cnf reason
+ * @MLO_LINK_SWITCH_CNF_STATUS_MAX: Maximum reason for link status
+ */
+enum wlan_mlo_link_switch_cnf_status {
+	MLO_LINK_SWITCH_CNF_STATUS_ACCEPT = 0,
+	MLO_LINK_SWITCH_CNF_STATUS_REJECT = 1,
+	MLO_LINK_SWITCH_CNF_STATUS_MAX,
+};
+
+/**
+ * struct wlan_mlo_link_switch_cnf: structure to hold link switch conf info
+ *
+ * @vdev_id: VDEV ID of link switch link
+ * @status: Link Switch Confirmation status
+ * @reason: Link Switch Reject reason
+ */
+struct wlan_mlo_link_switch_cnf {
+	uint32_t vdev_id;
+	enum wlan_mlo_link_switch_cnf_status status;
+	enum wlan_mlo_link_switch_cnf_reason reason;
+};
+
+/**
+ * enum wlan_mlo_link_switch_reason- Reason for link switch
+ *
+ * @MLO_LINK_SWITCH_REASON_RSSI_CHANGE: Link switch reason is because of RSSI
+ * @MLO_LINK_SWITCH_REASON_LOW_QUALITY: Link switch reason is because of low
+ * quality
+ * @MLO_LINK_SWITCH_REASON_C2_CHANGE: Link switch reason is because of C2 Metric
+ * @MLO_LINK_SWITCH_REASON_HOST_FORCE: Link switch reason is because of host
+ * force active/inactive
+ * @MLO_LINK_SWITCH_REASON_T2LM: Link switch reason is because of T2LM
+ * @MLO_LINK_SWITCH_REASON_MAX: Link switch reason max
+ */
+enum wlan_mlo_link_switch_reason {
+	MLO_LINK_SWITCH_REASON_RSSI_CHANGE = 1,
+	MLO_LINK_SWITCH_REASON_LOW_QUALITY = 2,
+	MLO_LINK_SWITCH_REASON_C2_CHANGE   = 3,
+	MLO_LINK_SWITCH_REASON_HOST_FORCE  = 4,
+	MLO_LINK_SWITCH_REASON_T2LM        = 5,
+	MLO_LINK_SWITCH_REASON_MAX,
+};
+
+/**
+ * struct wlan_mlo_link_switch_req - Data Structure because of link switch
+ * request
+ * @is_in_progress: is link switch in progress
+ * @restore_vdev_flag: VDEV Flag to be restored post link switch.
+ * @vdev_id: VDEV Id of the link which is under link switch
+ * @curr_ieee_link_id: Current link id of the ML link
+ * @new_ieee_link_id: Link id of the link to which going to link switched
+ * @peer_mld_addr: Peer MLD address
+ * @new_primary_freq: primary frequency of link switch link
+ * @new_phymode: Phy mode of link switch link
+ * @reason: Link switch reason
+ * @link_switch_ts: Link switch timestamp
+ */
+struct wlan_mlo_link_switch_req {
+	bool is_in_progress;
+	bool restore_vdev_flag;
+	uint8_t vdev_id;
+	uint8_t curr_ieee_link_id;
+	uint8_t new_ieee_link_id;
+	struct qdf_mac_addr peer_mld_addr;
+	uint32_t new_primary_freq;
+	uint32_t new_phymode;
+	enum wlan_mlo_link_switch_reason reason;
+	qdf_time_t link_switch_ts;
+};
+
+/**
+ * struct mlo_link_switch_stats - hold information regarding link switch stats
+ * @total_num_link_switch: Total number of link switch
+ * @req_reason: Reason of link switch received from FW
+ * @cnf_reason: Confirm reason sent to FW
+ * @req_ts: Link switch timestamp
+ * @lswitch_status: structure to hold link switch status
+ */
+struct mlo_link_switch_stats {
+	uint32_t total_num_link_switch;
+	struct {
+		enum wlan_mlo_link_switch_reason req_reason;
+		enum wlan_mlo_link_switch_cnf_reason cnf_reason;
+		qdf_time_t req_ts;
+	} lswitch_status[WLAN_MLO_LSWITCH_MAX_HISTORY];
+};
+
+/**
+ * struct mlo_link_switch_context - Link switch data structure.
+ * @links_info: Hold information regarding all the links of ml connection
+ * @last_req: Last link switch request received from FW
+ * @lswitch_stats: History of the link switch stats
+ *                 Includes both fail and success stats.
+ */
+struct mlo_link_switch_context {
+	struct mlo_link_info links_info[WLAN_MAX_ML_BSS_LINKS];
+	struct wlan_mlo_link_switch_req last_req;
+	struct mlo_link_switch_stats lswitch_stats[MLO_LINK_SWITCH_CNF_STATUS_MAX];
+};
+
+/**
+ * mlo_mgr_update_link_info_mac_addr() - MLO mgr update link info mac address
+ * @vdev: Object manager vdev
+ * @mlo_mac_update: ML link mac addresses update.
+ *
+ * Update link mac addresses for the ML links
+ * Return: none
+ */
+void mlo_mgr_update_link_info_mac_addr(struct wlan_objmgr_vdev *vdev,
+			       struct wlan_mlo_link_mac_update *mlo_mac_update);
+
+/**
+ * mlo_mgr_update_link_info_reset() - Reset link info of ml dev context
+ * @ml_dev: MLO device context
+ *
+ * Reset link info of ml links
+ * Return: QDF_STATUS
+ */
+void mlo_mgr_update_link_info_reset(struct wlan_mlo_dev_context *ml_dev);
+
+/**
+ * mlo_mgr_update_ap_link_info() - Update AP links information
+ * @vdev: Object Manager vdev
+ * @link_id: Link id of the AP MLD link
+ * @ap_link_addr: AP link addresses
+ * @channel: wlan channel information of the link
+ *
+ * Update AP link information for each link of AP MLD
+ * Return: void
+ */
+void mlo_mgr_update_ap_link_info(struct wlan_objmgr_vdev *vdev, uint8_t link_id,
+				 uint8_t *ap_link_addr,
+				 struct wlan_channel channel);
+
+/**
+ * mlo_mgr_get_ap_link_by_link_id() - Get mlo link info from link id
+ * @vdev: Object Manager vdev
+ * @link_id: Link id of the AP MLD link
+ *
+ * Search for the @link_id in the array in link_ctx in mlo_dev_ctx.
+ * Returns the pointer of mlo_link_info element matching the @link_id,
+ * or else NULL.
+ *
+ * Return: Pointer of link info
+ */
+struct mlo_link_info*
+mlo_mgr_get_ap_link_by_link_id(struct wlan_objmgr_vdev *vdev, int link_id);
+
+/**
+ * mlo_mgr_link_switch_request_params() - Link switch request params from FW.
+ * @psoc: PSOC object manager
+ * @evt_params: Link switch params received from FW.
+ *
+ * The @params contain link switch request parameters received from FW as
+ * an indication to host to trigger link switch sequence on the specified
+ * VDEV. If the @params are not valid link switch will be terminated.
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS mlo_mgr_link_switch_request_params(struct wlan_objmgr_psoc *psoc,
+					      void *evt_params);
+/**
+ * mlo_mgr_link_switch_complete() - Link switch complete notification to FW
+ * @vdev: VDV object manager
+ *
+ * Notify the status of link switch to FW once the link switch sequence is
+ * completed.
+ *
+ * Return: QDF_STATUS;
+ */
+QDF_STATUS mlo_mgr_link_switch_complete(struct wlan_objmgr_vdev *vdev);
+
+#ifdef WLAN_FEATURE_11BE_MLO_ADV_FEATURE
+/**
+ * mlo_mgr_link_switch_init() - API to initialize link switch
+ * @ml_dev: MLO dev context
+ *
+ * Initializes the MLO link context in @ml_dev and allocates various
+ * buffers needed.
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS mlo_mgr_link_switch_init(struct wlan_mlo_dev_context *ml_dev);
+
+/**
+ * mlo_mgr_link_switch_deinit() - API to de-initialize link switch
+ * @ml_dev: MLO dev context
+ *
+ * De-initialize the MLO link context in @ml_dev on and frees memory
+ * allocated as part of initialization.
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS mlo_mgr_link_switch_deinit(struct wlan_mlo_dev_context *ml_dev);
+#else
+static inline QDF_STATUS
+mlo_mgr_link_switch_deinit(struct wlan_mlo_dev_context *ml_dev)
+{
+	return QDF_STATUS_SUCCESS;
+}
+
+static inline QDF_STATUS
+mlo_mgr_link_switch_init(struct wlan_mlo_dev_context *ml_dev)
+{
+	return QDF_STATUS_SUCCESS;
+}
+#endif
+#endif

umac/mlo_mgr/inc/wlan_mlo_mgr_public_structs.h

@@ -56,6 +56,7 @@
 struct mlo_mlme_ext_ops;
 struct vdev_mlme_obj;
 struct wlan_t2lm_context;
+struct mlo_link_switch_context;
 
 /* Max LINK PEER support */
 #define MAX_MLO_LINK_PEERS WLAN_UMAC_MLO_MAX_VDEVS
@@ -485,6 +486,73 @@ struct wlan_mlo_peer_list {
 #endif
 };
 
+/**
+ * struct mlo_vdev_link_mac_info - VDEV to link address map
+ * @vdev_id: Vdev Id with which this link mac address is associated:
+ * @link_mac_addr: link specific mac address
+ */
+struct mlo_vdev_link_mac_info {
+	uint8_t vdev_id;
+	struct qdf_mac_addr link_mac_addr;
+};
+
+#if defined(UMAC_SUPPORT_MLNAWDS) || defined(MESH_MODE_SUPPORT)
+/**
+ * struct mlnawds_config - MLO NAWDS configuration
+ * @caps: Bandwidth & NSS capabilities to be configured on NAWDS peer
+ * @puncture_bitmap: puncture bitmap to be configured on NAWDS peer
+ * @mac: MAC address of the NAWDS peer to which the caps & puncture bitmap is
+ * to be configured.
+ */
+struct mlnawds_config {
+	uint64_t caps;
+	uint16_t puncture_bitmap;
+	uint8_t  mac[QDF_MAC_ADDR_SIZE];
+};
+#endif
+
+/**
+ * struct mlo_link_info - ML link info
+ * @link_addr: link mac address
+ * @link_id: link index
+ * @is_bridge : Bridge peer or not
+ * @chan_freq: Operating channel frequency
+ * @nawds_config: peer's NAWDS configurarion
+ * @vdev_id: VDEV ID
+ * @mesh_config: peer's MESH configurarion
+ * @link_status_flags: Current status of link
+ * @ap_link_addr: Associated link BSSID
+ * @link_chan_info: Associated link channel info
+ */
+struct mlo_link_info {
+	struct qdf_mac_addr link_addr;
+	uint8_t link_id;
+	bool is_bridge;
+	uint16_t chan_freq;
+#ifdef UMAC_SUPPORT_MLNAWDS
+	struct mlnawds_config nawds_config;
+#endif
+	uint8_t vdev_id;
+#ifdef MESH_MODE_SUPPORT
+	struct mlnawds_config mesh_config;
+#endif
+#ifdef WLAN_FEATURE_11BE_MLO_ADV_FEATURE
+	uint8_t link_status_flags;
+	struct qdf_mac_addr ap_link_addr;
+	struct wlan_channel *link_chan_info;
+#endif
+};
+
+/**
+ * struct wlan_mlo_link_mac_update: VDEV to link MAC address list
+ * @num_mac_update: Number of mac address
+ * @link_mac_info: Each VDEV to link mac address mapping
+ */
+struct wlan_mlo_link_mac_update {
+	int num_mac_update;
+	struct mlo_vdev_link_mac_info link_mac_info[3];
+};
+
 /**
  * struct wlan_mlo_dev_context - MLO device context
  * @node: QDF list node member
@@ -508,6 +576,7 @@ struct wlan_mlo_peer_list {
  *
  * NB: Not using kernel-doc format since the kernel-doc script doesn't
  *     handle the qdf_bitmap() macro
+ * @link_ctx: link related information
  */
 struct wlan_mlo_dev_context {
 	qdf_list_node_t node;
@@ -534,6 +603,7 @@ struct wlan_mlo_dev_context {
 	qdf_timer_t ptqm_migrate_timer;
 	qdf_bitmap(mlo_peer_id_bmap, MAX_MLO_PEER_ID);
 #endif
+	struct mlo_link_switch_context *link_ctx;
 };
 
 /**
@@ -568,21 +638,6 @@ enum mlo_peer_state {
 	ML_PEER_DISCONN_INITIATED,
 };
 
-#if defined(UMAC_SUPPORT_MLNAWDS) || defined(MESH_MODE_SUPPORT)
-/**
- * struct mlnawds_config - MLO NAWDS configuration
- * @caps: Bandwidth & NSS capabilities to be configured on NAWDS peer
- * @puncture_bitmap: puncture bitmap to be configured on NAWDS peer
- * @mac: MAC address of the NAWDS peer to which the caps & puncture bitmap is
- * to be configured.
- */
-struct mlnawds_config {
-	uint64_t caps;
-	uint16_t puncture_bitmap;
-	uint8_t  mac[QDF_MAC_ADDR_SIZE];
-};
-#endif
-
 /**
  * struct mlpeer_auth_params - Deferred Auth params
  * @vdev_id:  VDEV ID
@@ -755,30 +810,6 @@ struct wlan_mlo_peer_context {
 	bool primary_umac_migration_in_progress;
 };
 
-/**
- * struct mlo_link_info - ML link info
- * @link_addr: link mac address
- * @link_id: link index
- * @is_bridge : Bridge peer or not
- * @chan_freq: Operating channel frequency
- * @nawds_config: peer's NAWDS configurarion
- * @vdev_id: VDEV ID
- * @mesh_config: peer's MESH configurarion
- */
-struct mlo_link_info {
-	struct qdf_mac_addr link_addr;
-	uint8_t link_id;
-	bool is_bridge;
-	uint16_t chan_freq;
-#ifdef UMAC_SUPPORT_MLNAWDS
-	struct mlnawds_config nawds_config;
-#endif
-	uint8_t vdev_id;
-#ifdef MESH_MODE_SUPPORT
-	struct mlnawds_config mesh_config;
-#endif
-};
-
 /**
  * struct mlo_partner_info - mlo partner link info
  * @num_partner_links: no. of partner links

umac/mlo_mgr/src/wlan_mlo_mgr_link_switch.c

@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. 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.
+ */
+
+/*
+ * DOC: contains MLO manager Link Switch related functionality
+ */
+#include <wlan_mlo_mgr_link_switch.h>
+#include <wlan_objmgr_vdev_obj.h>
+#include <wlan_mlo_mgr_cmn.h>
+
+void mlo_mgr_update_link_info_mac_addr(struct wlan_objmgr_vdev *vdev,
+				       struct wlan_mlo_link_mac_update *ml_mac_update)
+{
+	struct mlo_link_info *link_info;
+	uint8_t link_info_iter;
+	struct mlo_vdev_link_mac_info *link_mac_info;
+
+	if (!vdev || !vdev->mlo_dev_ctx || !ml_mac_update)
+		return;
+
+	link_mac_info = &ml_mac_update->link_mac_info[0];
+	link_info = &vdev->mlo_dev_ctx->link_ctx->links_info[0];
+
+	for (link_info_iter = 0; link_info_iter < WLAN_MAX_ML_BSS_LINKS;
+	     link_info_iter++) {
+		qdf_mem_copy(&link_info->link_addr,
+			     &link_mac_info->link_mac_addr,
+			     QDF_MAC_ADDR_SIZE);
+
+		link_info->vdev_id = link_mac_info->vdev_id;
+		mlo_debug("link_info_iter:%d vdev_id %d "QDF_MAC_ADDR_FMT,
+			  link_info_iter, link_info->vdev_id,
+			  QDF_MAC_ADDR_REF(link_info->link_addr.bytes));
+		link_mac_info++;
+		link_info++;
+	}
+}
+
+void mlo_mgr_update_ap_link_info(struct wlan_objmgr_vdev *vdev, uint8_t link_id,
+				 uint8_t *ap_link_addr,
+				 struct wlan_channel channel)
+{
+	struct mlo_link_info *link_info;
+	uint8_t link_info_iter;
+
+	if (!vdev || !vdev->mlo_dev_ctx || !ap_link_addr)
+		return;
+
+	link_info = &vdev->mlo_dev_ctx->link_ctx->links_info[0];
+	for (link_info_iter = 0; link_info_iter < WLAN_MAX_ML_BSS_LINKS;
+	     link_info_iter++) {
+		if (qdf_is_macaddr_zero(&link_info->ap_link_addr))
+			break;
+
+		link_info++;
+	}
+
+	if (link_info_iter == WLAN_MAX_ML_BSS_LINKS)
+		return;
+
+	qdf_mem_copy(&link_info->ap_link_addr, ap_link_addr, QDF_MAC_ADDR_SIZE);
+	qdf_mem_copy(link_info->link_chan_info, &channel, sizeof(channel));
+	link_info->link_id = link_id;
+}
+
+void mlo_mgr_update_link_info_reset(struct wlan_mlo_dev_context *ml_dev)
+{
+	struct mlo_link_info *link_info;
+	uint8_t link_info_iter;
+
+	if (!ml_dev)
+		return;
+
+	link_info = &ml_dev->link_ctx->links_info[0];
+
+	for (link_info_iter = 0; link_info_iter < WLAN_MAX_ML_BSS_LINKS;
+	     link_info_iter++) {
+		qdf_mem_zero(&link_info->link_addr, QDF_MAC_ADDR_SIZE);
+		qdf_mem_zero(&link_info->ap_link_addr, QDF_MAC_ADDR_SIZE);
+		link_info->vdev_id = WLAN_INVALID_VDEV_ID;
+		link_info->link_id = WLAN_INVALID_LINK_ID;
+		link_info++;
+	}
+}
+
+struct mlo_link_info
+*mlo_mgr_get_ap_link_by_link_id(struct wlan_objmgr_vdev *vdev, int link_id)
+{
+	struct mlo_link_info *link_info;
+	uint8_t link_info_iter;
+
+	if (!vdev || link_id < 0 || link_id > 15)
+		return NULL;
+
+	link_info = &vdev->mlo_dev_ctx->link_ctx->links_info[0];
+	for (link_info_iter = 0; link_info_iter < WLAN_MAX_ML_BSS_LINKS;
+	     link_info_iter++) {
+		if (link_info->link_id == link_id)
+			return link_info;
+		link_info++;
+	}
+
+	return NULL;
+}
+
+static
+void mlo_mgr_alloc_link_info_wmi_chan(struct wlan_mlo_dev_context *ml_dev)
+{
+	struct mlo_link_info *link_info;
+	uint8_t link_info_iter;
+
+	if (!ml_dev)
+		return;
+
+	link_info = &ml_dev->link_ctx->links_info[0];
+	for (link_info_iter = 0; link_info_iter < WLAN_MAX_ML_BSS_LINKS;
+	     link_info_iter++) {
+		link_info->link_chan_info =
+			qdf_mem_malloc(sizeof(*link_info->link_chan_info));
+		if (!link_info->link_chan_info)
+			return;
+		link_info++;
+	}
+}
+
+static
+void mlo_mgr_free_link_info_wmi_chan(struct wlan_mlo_dev_context *ml_dev)
+{
+	struct mlo_link_info *link_info;
+	uint8_t link_info_iter;
+
+	if (!ml_dev)
+		return;
+
+	link_info = &ml_dev->link_ctx->links_info[0];
+	for (link_info_iter = 0; link_info_iter < WLAN_MAX_ML_BSS_LINKS;
+	     link_info_iter++) {
+		if (link_info->link_chan_info)
+			qdf_mem_free(link_info->link_chan_info);
+		link_info++;
+	}
+}
+
+QDF_STATUS mlo_mgr_link_switch_init(struct wlan_mlo_dev_context *ml_dev)
+{
+	ml_dev->link_ctx =
+		qdf_mem_malloc(sizeof(struct mlo_link_switch_context));
+
+	if (!ml_dev->link_ctx)
+		return QDF_STATUS_E_NOMEM;
+
+	mlo_mgr_alloc_link_info_wmi_chan(ml_dev);
+	mlo_mgr_update_link_info_reset(ml_dev);
+
+	return QDF_STATUS_SUCCESS;
+}
+
+QDF_STATUS mlo_mgr_link_switch_deinit(struct wlan_mlo_dev_context *ml_dev)
+{
+	mlo_mgr_free_link_info_wmi_chan(ml_dev);
+	qdf_mem_free(ml_dev->link_ctx);
+	ml_dev->link_ctx = NULL;
+	return QDF_STATUS_SUCCESS;
+}

umac/mlo_mgr/src/wlan_mlo_mgr_main.c

@@ -18,6 +18,7 @@
 /*
  * DOC: contains MLO manager init/deinit api's
  */
+#include <wlan_mlo_mgr_link_switch.h>
 #include "wlan_cmn.h"
 #include <wlan_objmgr_cmn.h>
 #include <wlan_objmgr_global_obj.h>
@@ -782,6 +783,7 @@ static QDF_STATUS mlo_dev_ctx_init(struct wlan_objmgr_vdev *vdev)
 	mlo_t2lm_ctx_init(ml_dev, vdev);
 	mlo_epcs_ctx_init(ml_dev);
 	mlo_ptqm_migration_init(ml_dev);
+	mlo_mgr_link_switch_init(ml_dev);
 
 	return status;
 }
@@ -895,6 +897,7 @@ static QDF_STATUS mlo_dev_ctx_deinit(struct wlan_objmgr_vdev *vdev)
 			qdf_mem_free(ml_dev->ap_ctx);
 
 		mlo_ptqm_migration_deinit(ml_dev);
+		mlo_mgr_link_switch_deinit(ml_dev);
 		mlo_t2lm_ctx_deinit(vdev);
 		tsf_recalculation_lock_destroy(ml_dev);
 		mlo_dev_lock_destroy(ml_dev);