qcacmn: Data path converged internal APIs (Set 1)

Initial check-in of the data path converged APIs that
are currently only implemented by MCL.

Change-Id: I8132aeef4631a8e2fb5e132126a0fc5292c96d12
CRs-Fixed: 993414

dp/inc/cdp_txrx_flow_ctrl_legacy.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2016 The Linux Foundation. All rights reserved.
+ *
+ * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * 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.
+ */
+
+/*
+ * This file was originally distributed by Qualcomm Atheros, Inc.
+ * under proprietary terms before Copyright ownership was assigned
+ * to the Linux Foundation.
+ */
+ /**
+ * @file cdp_txrx_flow_ctrl_legacy.h
+ * @brief Define the host data path legacy flow control API
+ * functions
+ */
+#ifndef _CDP_TXRX_FC_LEG_H_
+#define _CDP_TXRX_FC_LEG_H_
+
+/**
+ * enum netif_action_type - Type of actions on netif queues
+ * @WLAN_STOP_ALL_NETIF_QUEUE: stop all netif queues
+ * @WLAN_START_ALL_NETIF_QUEUE: start all netif queues
+ * @WLAN_WAKE_ALL_NETIF_QUEUE: wake all netif queues
+ * @WLAN_STOP_ALL_NETIF_QUEUE_N_CARRIER: stop all queues and off carrier
+ * @WLAN_START_ALL_NETIF_QUEUE_N_CARRIER: start all queues and on carrier
+ * @WLAN_NETIF_TX_DISABLE: disable tx
+ * @WLAN_NETIF_TX_DISABLE_N_CARRIER: disable tx and off carrier
+ * @WLAN_NETIF_CARRIER_ON: on carrier
+ * @WLAN_NETIF_CARRIER_OFF: off carrier
+ */
+enum netif_action_type {
+	WLAN_STOP_ALL_NETIF_QUEUE,
+	WLAN_START_ALL_NETIF_QUEUE,
+	WLAN_WAKE_ALL_NETIF_QUEUE,
+	WLAN_STOP_ALL_NETIF_QUEUE_N_CARRIER,
+	WLAN_START_ALL_NETIF_QUEUE_N_CARRIER,
+	WLAN_NETIF_TX_DISABLE,
+	WLAN_NETIF_TX_DISABLE_N_CARRIER,
+	WLAN_NETIF_CARRIER_ON,
+	WLAN_NETIF_CARRIER_OFF,
+	WLAN_NETIF_ACTION_TYPE_MAX,
+};
+
+/**
+ * enum netif_reason_type - reason for netif queue action
+ * @WLAN_CONTROL_PATH: action from control path
+ * @WLAN_DATA_FLOW_CONTROL: because of flow control
+ * @WLAN_FW_PAUSE: because of firmware pause
+ * @WLAN_TX_ABORT: because of tx abort
+ * @WLAN_VDEV_STOP: because of vdev stop
+ * @WLAN_PEER_UNAUTHORISED: because of peer is unauthorised
+ * @WLAN_THERMAL_MITIGATION: because of thermal mitigation
+ */
+enum netif_reason_type {
+	WLAN_CONTROL_PATH,
+	WLAN_DATA_FLOW_CONTROL,
+	WLAN_FW_PAUSE,
+	WLAN_TX_ABORT,
+	WLAN_VDEV_STOP,
+	WLAN_PEER_UNAUTHORISED,
+	WLAN_THERMAL_MITIGATION,
+	WLAN_REASON_TYPE_MAX,
+};
+
+#ifdef QCA_LL_LEGACY_TX_FLOW_CONTROL
+/**
+ * ol_txrx_tx_flow_control_fp - tx flow control notification
+ * function from txrx to OS shim
+ * @osif_dev - the virtual device's OS shim object
+ * @tx_resume - tx os q should be resumed or not
+ */
+typedef void (*ol_txrx_tx_flow_control_fp)(void *osif_dev,
+			 bool tx_resume);
+
+int ol_txrx_register_tx_flow_control(uint8_t vdev_id,
+		 ol_txrx_tx_flow_control_fp flowControl,
+		 void *osif_fc_ctx);
+
+int ol_txrx_deregister_tx_flow_control_cb(uint8_t vdev_id);
+
+void ol_txrx_flow_control_cb(ol_txrx_vdev_handle vdev,
+			 bool tx_resume);
+bool
+ol_txrx_get_tx_resource(uint8_t sta_id,
+			 unsigned int low_watermark,
+			 unsigned int high_watermark_offset);
+
+int
+ol_txrx_ll_set_tx_pause_q_depth(uint8_t vdev_id, int pause_q_depth);
+
+#endif /* QCA_LL_LEGACY_TX_FLOW_CONTROL */
+
+void ol_txrx_vdev_flush(ol_txrx_vdev_handle data_vdev);
+
+void ol_txrx_vdev_pause(ol_txrx_vdev_handle vdev, uint32_t reason);
+
+void ol_txrx_vdev_unpause(ol_txrx_vdev_handle data_vdev, uint32_t reason);
+
+#endif /* _CDP_TXRX_FC_LEG_H_ */