qcacmn: Clean up global desc pool during Umac reset

Make sure that the global dp tx desc pools are cleaned
up only once during MLO umac reset.

Change-Id: Id6e0ac6532b11ffb9ea190b6ab4d481fb486d853
CRs-Fixed: 3647660

dp/wifi3.0/be/mlo/dp_mlo.c

@@ -1736,6 +1736,53 @@ dp_get_umac_reset_in_progress_state(struct cdp_soc_t *psoc)
 			CDP_UMAC_RESET_IN_PROGRESS_DURING_BUFFER_WINDOW :
 			CDP_UMAC_RESET_NOT_IN_PROGRESS);
 }
+
+/**
+ * dp_get_global_tx_desc_cleanup_flag() - Get cleanup needed flag
+ * @soc: dp soc handle
+ *
+ * Return: cleanup needed/ not needed
+ */
+bool dp_get_global_tx_desc_cleanup_flag(struct dp_soc *soc)
+{
+	struct dp_soc_be *be_soc = dp_get_be_soc_from_dp_soc(soc);
+	struct dp_mlo_ctxt *mlo_ctx = be_soc->ml_ctxt;
+	struct dp_soc_mlo_umac_reset_ctx *grp_umac_reset_ctx;
+	bool flag;
+
+	if (!mlo_ctx)
+		return true;
+
+	grp_umac_reset_ctx = &mlo_ctx->grp_umac_reset_ctx;
+	qdf_spin_lock_bh(&grp_umac_reset_ctx->grp_ctx_lock);
+
+	flag = grp_umac_reset_ctx->tx_desc_pool_cleaned;
+	if (!flag)
+		grp_umac_reset_ctx->tx_desc_pool_cleaned = true;
+
+	qdf_spin_unlock_bh(&grp_umac_reset_ctx->grp_ctx_lock);
+
+	return !flag;
+}
+
+/**
+ * dp_reset_global_tx_desc_cleanup_flag() - Reset cleanup needed flag
+ * @soc: dp soc handle
+ *
+ * Return: None
+ */
+void dp_reset_global_tx_desc_cleanup_flag(struct dp_soc *soc)
+{
+	struct dp_soc_be *be_soc = dp_get_be_soc_from_dp_soc(soc);
+	struct dp_mlo_ctxt *mlo_ctx = be_soc->ml_ctxt;
+	struct dp_soc_mlo_umac_reset_ctx *grp_umac_reset_ctx;
+
+	if (!mlo_ctx)
+		return;
+
+	grp_umac_reset_ctx = &mlo_ctx->grp_umac_reset_ctx;
+	grp_umac_reset_ctx->tx_desc_pool_cleaned = false;
+}
 #endif
 
 struct dp_soc *

dp/wifi3.0/dp_internal.h

@@ -2985,6 +2985,23 @@ static inline void dp_umac_reset_trigger_pre_reset_notify_cb(struct dp_soc *soc)
 		callback(soc);
 }
 
+/**
+ * dp_reset_global_tx_desc_cleanup_flag() - Reset cleanup needed flag
+ * @soc: dp soc handle
+ *
+ * Return: None
+ */
+void dp_reset_global_tx_desc_cleanup_flag(struct dp_soc *soc);
+
+/**
+ * dp_get_global_tx_desc_cleanup_flag() - Get cleanup needed flag
+ * @soc: dp soc handle
+ *
+ * Return: cleanup needed/ not needed
+ */
+bool dp_get_global_tx_desc_cleanup_flag(struct dp_soc *soc);
+
+
 #if defined(WLAN_FEATURE_11BE_MLO) && defined(WLAN_MLO_MULTI_CHIP)
 /**
  * dp_umac_reset_complete_umac_recovery() - Complete Umac reset session

dp/wifi3.0/dp_main.c

@@ -11917,6 +11917,7 @@ static QDF_STATUS dp_umac_reset_handle_pre_reset(struct dp_soc *soc)
 static QDF_STATUS dp_umac_reset_handle_post_reset(struct dp_soc *soc)
 {
 	if (!soc->umac_reset_ctx.skel_enable) {
+		bool cleanup_needed;
 		qdf_nbuf_t *nbuf_list = &soc->umac_reset_ctx.nbuf_list;
 
 		dp_set_umac_regs(soc);
@@ -11929,7 +11930,9 @@ static QDF_STATUS dp_umac_reset_handle_post_reset(struct dp_soc *soc)
 
 		dp_umac_reset_ppeds_txdesc_pool_reset(soc, nbuf_list);
 
-		dp_tx_desc_pool_cleanup(soc, nbuf_list);
+		cleanup_needed = dp_get_global_tx_desc_cleanup_flag(soc);
+
+		dp_tx_desc_pool_cleanup(soc, nbuf_list, cleanup_needed);
 
 		dp_reset_tid_q_setup(soc);
 	}
@@ -11963,6 +11966,8 @@ static QDF_STATUS dp_umac_reset_handle_post_reset_complete(struct dp_soc *soc)
 
 	dp_resume_tx_hardstart(soc);
 
+	dp_reset_global_tx_desc_cleanup_flag(soc);
+
 	status = dp_umac_reset_notify_action_completion(soc,
 				UMAC_RESET_ACTION_DO_POST_RESET_COMPLETE);
 

dp/wifi3.0/dp_tx_desc.c

@@ -95,15 +95,20 @@ static void dp_tx_desc_clean_up(void *ctxt, void *elem, void *elem_list)
 	}
 }
 
-void dp_tx_desc_pool_cleanup(struct dp_soc *soc, qdf_nbuf_t *nbuf_list)
+void dp_tx_desc_pool_cleanup(struct dp_soc *soc, qdf_nbuf_t *nbuf_list,
+			     bool cleanup)
 {
 	int i;
 	struct dp_tx_desc_pool_s *tx_desc_pool = NULL;
 	uint8_t num_pool = wlan_cfg_get_num_tx_desc_pool(soc->wlan_cfg_ctx);
 
+	if (!cleanup)
+		return;
+
 	for (i = 0; i < num_pool; i++) {
 		tx_desc_pool = dp_get_tx_desc_pool(soc, i);
 
+		TX_DESC_LOCK_LOCK(&tx_desc_pool->lock);
 		if (tx_desc_pool)
 			qdf_tx_desc_pool_free_bufs(soc,
 						   &tx_desc_pool->desc_pages,
@@ -112,7 +117,10 @@ void dp_tx_desc_pool_cleanup(struct dp_soc *soc, qdf_nbuf_t *nbuf_list)
 						   true, &dp_tx_desc_clean_up,
 						   nbuf_list);
 
+		TX_DESC_LOCK_UNLOCK(&tx_desc_pool->lock);
+
 		tx_desc_pool = dp_get_spcl_tx_desc_pool(soc, i);
+		TX_DESC_LOCK_LOCK(&tx_desc_pool->lock);
 
 		if (tx_desc_pool)
 			qdf_tx_desc_pool_free_bufs(soc,
@@ -121,6 +129,8 @@ void dp_tx_desc_pool_cleanup(struct dp_soc *soc, qdf_nbuf_t *nbuf_list)
 						   tx_desc_pool->elem_count,
 						   true, &dp_tx_desc_clean_up,
 						   nbuf_list);
+
+		TX_DESC_LOCK_UNLOCK(&tx_desc_pool->lock);
 	}
 }
 #endif

dp/wifi3.0/dp_tx_desc.h

@@ -454,9 +454,11 @@ void dp_tx_tso_num_seg_pool_deinit(struct dp_soc *soc, uint8_t num_pool);
  * dp_tx_desc_pool_cleanup() -  Clean up the tx dexcriptor pools
  * @soc: Handle to DP SoC structure
  * @nbuf_list: nbuf list for delayed free
+ * @cleanup: cleanup the pool
  *
  */
-void dp_tx_desc_pool_cleanup(struct dp_soc *soc, qdf_nbuf_t *nbuf_list);
+void dp_tx_desc_pool_cleanup(struct dp_soc *soc, qdf_nbuf_t *nbuf_list,
+			     bool cleanup);
 #endif
 
 /**

dp/wifi3.0/dp_umac_reset.c

@@ -321,6 +321,20 @@ bool dp_check_umac_reset_in_progress(struct dp_soc *soc)
 	return !!soc->umac_reset_ctx.intr_ctx_bkp;
 }
 
+
+#if !defined(QCA_SUPPORT_DP_GLOBAL_CTX) || \
+	(defined(QCA_SUPPORT_DP_GLOBAL_CTX) && \
+	!defined(WLAN_FEATURE_11BE_MLO) || !defined(WLAN_MLO_MULTI_CHIP))
+bool dp_get_global_tx_desc_cleanup_flag(struct dp_soc *soc)
+{
+	return true;
+}
+
+void dp_reset_global_tx_desc_cleanup_flag(struct dp_soc *soc)
+{
+}
+#endif
+
 #if !defined(WLAN_FEATURE_11BE_MLO) || !defined(WLAN_MLO_MULTI_CHIP)
 /**
  * dp_umac_reset_initiate_umac_recovery() - Initiate Umac reset session

dp/wifi3.0/dp_umac_reset.h

@@ -178,6 +178,7 @@ struct reset_ts {
  * @grp_ctx_lock: lock for accessing group level umac reset context
  * @umac_reset_in_progress: Flag to indicate if umac reset is in progress
  * @is_target_recovery: Flag to indicate if this is for target recovery
+ * @tx_desc_pool_cleaned: Global tx_desc pool clean up has been done
  * @initiator_chip_id: chip id of the Umac reset initiator
  * @umac_reset_count: Number of times Umac reset happened on this MLO group
  */
@@ -187,7 +188,8 @@ struct dp_soc_mlo_umac_reset_ctx {
 	unsigned long response_map;
 	qdf_spinlock_t grp_ctx_lock;
 	uint8_t umac_reset_in_progress:1,
-		is_target_recovery:1;
+		is_target_recovery:1,
+		tx_desc_pool_cleaned:1;
 	uint8_t initiator_chip_id;
 	uint32_t umac_reset_count;
 };