qcacmn: Create flow control pools on vdev start

As many as 5 vdevs can be created, which is defined by MAX_SME_SESSIONS.
But flow control pools are only valid for active TxRx capable vdevs.
which is 3 active vdevs. So attach flow pool creation to vdev_start
instead of vdev_attach.

Change-Id: I137676ba618aa3a6684c7d17ef7d9263c4df6efe
CRs-Fixed: 2220079

dp/inc/cdp_txrx_cmn.h

@@ -113,6 +113,62 @@ cdp_vdev_attach(ol_txrx_soc_handle soc, struct cdp_pdev *pdev,
 	return soc->ops->cmn_drv_ops->txrx_vdev_attach(pdev,
 			vdev_mac_addr, vdev_id, op_mode);
 }
+#ifndef CONFIG_WIN
+/**
+ * cdp_flow_pool_map() - Create flow pool for vdev
+ * @soc - data path soc handle
+ * @pdev
+ * @vdev_id - vdev_id corresponding to vdev start
+ *
+ * Create per vdev flow pool.
+ *
+ * return none
+ */
+static inline QDF_STATUS cdp_flow_pool_map(ol_txrx_soc_handle soc,
+					struct cdp_pdev *pdev, uint8_t vdev_id)
+{
+	if (!soc || !soc->ops) {
+		QDF_TRACE(QDF_MODULE_ID_CDP, QDF_TRACE_LEVEL_DEBUG,
+				"%s: Invalid Instance:", __func__);
+		QDF_BUG(0);
+		return QDF_STATUS_E_INVAL;
+	}
+
+	if (!soc->ops->flowctl_ops ||
+	    !soc->ops->flowctl_ops->flow_pool_map_handler)
+		return QDF_STATUS_E_INVAL;
+
+	return soc->ops->flowctl_ops->flow_pool_map_handler(soc, pdev, vdev_id);
+}
+
+/**
+ * cdp_flow_pool_unmap() - Delete flow pool
+ * @soc - data path soc handle
+ * @pdev
+ * @vdev_id - vdev_id corresponding to vdev start
+ *
+ * Delete flow pool
+ *
+ * return none
+ */
+static inline void cdp_flow_pool_unmap(ol_txrx_soc_handle soc,
+					struct cdp_pdev *pdev, uint8_t vdev_id)
+{
+	if (!soc || !soc->ops) {
+		QDF_TRACE(QDF_MODULE_ID_CDP, QDF_TRACE_LEVEL_DEBUG,
+				"%s: Invalid Instance:", __func__);
+		QDF_BUG(0);
+		return;
+	}
+
+	if (!soc->ops->flowctl_ops ||
+	    !soc->ops->flowctl_ops->flow_pool_unmap_handler)
+		return;
+
+	return soc->ops->flowctl_ops->flow_pool_unmap_handler(soc, pdev,
+							vdev_id);
+}
+#endif
 
 static inline void
 cdp_vdev_detach(ol_txrx_soc_handle soc, struct cdp_vdev *vdev,

dp/inc/cdp_txrx_ops.h

@@ -868,9 +868,16 @@ struct cdp_cfg_ops {
  * @dump_flow_pool_info:
  */
 struct cdp_flowctl_ops {
+	QDF_STATUS (*flow_pool_map_handler)(struct cdp_soc_t *soc,
+					    struct cdp_pdev *pdev,
+					    uint8_t vdev_id);
+	void (*flow_pool_unmap_handler)(struct cdp_soc_t *soc,
+					struct cdp_pdev *pdev,
+					uint8_t vdev_id);
 	QDF_STATUS (*register_pause_cb)(struct cdp_soc_t *soc,
 					tx_pause_callback);
 	void (*set_desc_global_pool_size)(uint32_t num_msdu_desc);
+
 	void (*dump_flow_pool_info)(void *);
 };
 

dp/wifi3.0/dp_main.c

@@ -3257,7 +3257,6 @@ static struct cdp_vdev *dp_vdev_attach_wifi3(struct cdp_pdev *txrx_pdev,
 	struct dp_pdev *pdev = (struct dp_pdev *)txrx_pdev;
 	struct dp_soc *soc = pdev->soc;
 	struct dp_vdev *vdev = qdf_mem_malloc(sizeof(*vdev));
-	int tx_ring_size;
 
 	if (!vdev) {
 		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
@@ -3292,7 +3291,6 @@ static struct cdp_vdev *dp_vdev_attach_wifi3(struct cdp_pdev *txrx_pdev,
 	vdev->rx_decap_type = wlan_cfg_pkt_type(soc->wlan_cfg_ctx);
 	vdev->dscp_tid_map_id = 0;
 	vdev->mcast_enhancement_en = 0;
-	tx_ring_size = wlan_cfg_tx_ring_size(soc->wlan_cfg_ctx);
 
 	/* TODO: Initialize default HTT meta data that will be used in
 	 * TCL descriptors for packets transmitted from this VDEV
@@ -3306,10 +3304,6 @@ static struct cdp_vdev *dp_vdev_attach_wifi3(struct cdp_pdev *txrx_pdev,
 
 	dp_tx_vdev_attach(vdev);
 
-	if (QDF_STATUS_SUCCESS != dp_tx_flow_pool_map_handler(pdev, vdev_id,
-					FLOW_TYPE_VDEV, vdev_id, tx_ring_size))
-		goto fail1;
-
 
 	if ((soc->intr_mode == DP_INTR_POLL) &&
 			wlan_cfg_get_num_contexts(soc->wlan_cfg_ctx) != 0) {
@@ -3337,9 +3331,6 @@ static struct cdp_vdev *dp_vdev_attach_wifi3(struct cdp_pdev *txrx_pdev,
 
 	return (struct cdp_vdev *)vdev;
 
-fail1:
-	dp_tx_vdev_detach(vdev);
-	qdf_mem_free(vdev);
 fail0:
 	return NULL;
 }
@@ -3476,8 +3467,6 @@ static void dp_vdev_detach_wifi3(struct cdp_vdev *vdev_handle,
 	}
 	qdf_spin_unlock_bh(&soc->peer_ref_mutex);
 
-	dp_tx_flow_pool_unmap_handler(pdev, vdev->vdev_id, FLOW_TYPE_VDEV,
-		vdev->vdev_id);
 	dp_tx_vdev_detach(vdev);
 	QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO_HIGH,
 		FL("deleting vdev object %pK (%pM)"), vdev, vdev->mac_addr.raw);
@@ -7033,6 +7022,8 @@ static struct cdp_misc_ops dp_ops_misc = {
 static struct cdp_flowctl_ops dp_ops_flowctl = {
 	/* WIFI 3.0 DP implement as required. */
 #ifdef QCA_LL_TX_FLOW_CONTROL_V2
+	.flow_pool_map_handler = dp_tx_flow_pool_map,
+	.flow_pool_unmap_handler = dp_tx_flow_pool_unmap,
 	.register_pause_cb = dp_txrx_register_pause_cb,
 	.dump_flow_pool_info = dp_tx_dump_flow_pool_info,
 #endif /* QCA_LL_TX_FLOW_CONTROL_V2 */

dp/wifi3.0/dp_tx_desc.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2018 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
@@ -69,6 +69,10 @@ void dp_tx_flow_control_deinit(struct dp_soc *);
 
 QDF_STATUS dp_txrx_register_pause_cb(struct cdp_soc_t *soc,
 	tx_pause_callback pause_cb);
+QDF_STATUS dp_tx_flow_pool_map(struct cdp_soc_t *soc, struct cdp_pdev *pdev,
+				uint8_t vdev_id);
+void dp_tx_flow_pool_unmap(struct cdp_soc_t *soc, struct cdp_pdev *pdev,
+			   uint8_t vdev_id);
 void dp_tx_clear_flow_pool_stats(struct dp_soc *soc);
 struct dp_tx_desc_pool_s *dp_tx_create_flow_pool(struct dp_soc *soc,
 	uint8_t flow_pool_id, uint16_t flow_pool_size);

dp/wifi3.0/dp_tx_flow_control.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015-2018 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
@@ -417,3 +417,20 @@ QDF_STATUS dp_txrx_register_pause_cb(struct cdp_soc_t *handle,
 
 	return QDF_STATUS_SUCCESS;
 }
+
+QDF_STATUS dp_tx_flow_pool_map(struct cdp_soc_t *handle, struct cdp_pdev *pdev,
+				uint8_t vdev_id)
+{
+	struct dp_soc *soc = (struct dp_soc *)handle;
+	int tx_ring_size = wlan_cfg_tx_ring_size(soc->wlan_cfg_ctx);
+
+	return (dp_tx_flow_pool_map_handler((struct dp_pdev *)pdev, vdev_id,
+				FLOW_TYPE_VDEV,	vdev_id, tx_ring_size));
+}
+
+void dp_tx_flow_pool_unmap(struct cdp_soc_t *soc, struct cdp_pdev *pdev,
+			   uint8_t vdev_id)
+{
+	return(dp_tx_flow_pool_unmap_handler((struct dp_pdev *)pdev, vdev_id,
+				FLOW_TYPE_VDEV, vdev_id));
+}