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_v2.h

@@ -0,0 +1,63 @@
+/*
+ * 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_v2.h
+ * @brief Define the host data path flow control version 2 API
+ * functions
+ */
+#ifndef _CDP_TXRX_FC_V2_H_
+#define _CDP_TXRX_FC_V2_H_
+
+#include "cdp_txrx_flow_ctrl_legacy.h"
+
+/**
+ * @typedef ol_tx_pause_callback_fp
+ * @brief OSIF function registered with the data path
+ */
+typedef void (*ol_tx_pause_callback_fp)(uint8_t vdev_id,
+					enum netif_action_type action,
+					enum netif_reason_type reason);
+
+#ifdef QCA_LL_TX_FLOW_CONTROL_V2
+QDF_STATUS ol_txrx_register_pause_cb(ol_tx_pause_callback_fp pause_cb);
+
+void ol_tx_set_desc_global_pool_size(uint32_t num_msdu_desc);
+#else
+static inline
+QDF_STATUS ol_txrx_register_pause_cb(ol_tx_pause_callback_fp pause_cb)
+{
+	return QDF_STATUS_SUCCESS;
+
+}
+
+static inline void ol_tx_set_desc_global_pool_size(uint32_t num_msdu_desc)
+{
+	return;
+}
+#endif
+
+#endif /* _CDP_TXRX_FC_V2_H_ */