qcacmn: Support for DP RX Threads

Add support for DP RX Threads as a part of the FR. Multiple RX
threads can be enabled from the ini. The code is added in a new DP
module outside of the cmn project.

Change-Id: Id966c46c2799d23c2a4fa1c884610955afed3565
CRs-Fixed: 2256470

dp/inc/cdp_txrx_cmn.h

@@ -34,6 +34,11 @@
  * Common Data Path Header File
  *
  *****************************************************************************/
+#define dp_alert(params...) QDF_TRACE_FATAL(QDF_MODULE_ID_DP, params)
+#define dp_err(params...) QDF_TRACE_ERROR(QDF_MODULE_ID_DP, params)
+#define dp_warn(params...) QDF_TRACE_WARN(QDF_MODULE_ID_DP, params)
+#define dp_info(params...) QDF_TRACE_INFO(QDF_MODULE_ID_DP, params)
+#define dp_debug(params...) QDF_TRACE_DEBUG(QDF_MODULE_ID_DP, params)
 
 static inline int
 cdp_soc_attach_target(ol_txrx_soc_handle soc)
@@ -916,6 +921,37 @@ static inline struct cdp_pdev *cdp_get_pdev_from_vdev
 	return soc->ops->cmn_drv_ops->txrx_get_pdev_from_vdev(vdev);
 }
 
+/**
+ * cdp_get_os_rx_handles_from_vdev() - Return os rx handles for a vdev
+ * @soc: ol_txrx_soc_handle handle
+ * @vdev: vdev for which os rx handles are needed
+ * @stack_fn_p: pointer to stack function pointer
+ * @osif_handle_p: pointer to ol_osif_vdev_handle
+ *
+ * Return: void
+ */
+static inline
+void cdp_get_os_rx_handles_from_vdev(ol_txrx_soc_handle soc,
+				     struct cdp_vdev *vdev,
+				     ol_txrx_rx_fp *stack_fn_p,
+				     ol_osif_vdev_handle *osif_handle_p)
+{
+	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->cmn_drv_ops ||
+	    !soc->ops->cmn_drv_ops->txrx_get_os_rx_handles_from_vdev)
+		return;
+
+	soc->ops->cmn_drv_ops->txrx_get_os_rx_handles_from_vdev(vdev,
+								stack_fn_p,
+								osif_handle_p);
+}
+
 /**
  * cdp_get_ctrl_pdev_from_vdev() - Return control pdev of vdev
  * @vdev: vdev handle

dp/inc/cdp_txrx_cmn_struct.h

@@ -573,7 +573,7 @@ typedef void (*ol_txrx_stats_callback)(void *ctxt,
  * OSIF which is called from txrx to
  * indicate whether the transmit OS
  * queues should be paused/resumed
- * @rx.std - the OS shim rx function to deliver rx data
+ * @rx.rx - the OS shim rx function to deliver rx data
  * frames to. This can have different values for
  * different virtual devices, e.g. so one virtual
  * device's OS shim directly hands rx frames to the OS,
@@ -581,7 +581,11 @@ typedef void (*ol_txrx_stats_callback)(void *ctxt,
  * messages before sending the rx frames to the OS. The
  * netbufs delivered to the osif_rx function are in the
  * format specified by the OS to use for tx and rx
- * frames (either 802.3 or native WiFi)
+ * frames (either 802.3 or native WiFi). In case RX Threads are enabled, pkts
+ * are given to the thread, instead of the stack via this pointer.
+ * @rx.stack - function to give packets to the stack. Differs from @rx.rx.
+ * In case RX Threads are enabled, this pointer holds the callback to give
+ * packets to the stack.
  * @rx.wai_check - the tx function pointer for WAPI frames
  * @rx.mon - the OS shim rx monitor function to deliver
  * monitor data to Though in practice, it is probable
@@ -613,6 +617,7 @@ struct ol_txrx_ops {
 	/* rx function pointers - specified by OS shim, stored by txrx */
 	struct {
 		ol_txrx_rx_fp           rx;
+		ol_txrx_rx_fp           rx_stack;
 		ol_txrx_rx_check_wai_fp wai_check;
 		ol_txrx_rx_mon_fp       mon;
 		ol_txrx_stats_rx_fp           stats_rx;

dp/inc/cdp_txrx_ops.h

@@ -16,7 +16,6 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-
 /**
  * @file cdp_txrx_ops.h
  * @brief Define the host data path converged API functions
@@ -334,6 +333,18 @@ struct cdp_cmn_ops {
 					struct cdp_ctrl_objmgr_pdev *ctrl_pdev);
 
 	ol_txrx_tx_fp tx_send;
+
+	/**
+	 * txrx_get_os_rx_handles_from_vdev() - Return function, osif vdev
+	 *					to deliver pkt to stack.
+	 * @vdev: vdev handle
+	 * @stack_fn: pointer to - function pointer to deliver RX pkt to stack
+	 * @osif_vdev: pointer to - osif vdev to deliver RX packet to.
+	 */
+	void (*txrx_get_os_rx_handles_from_vdev)
+					(struct cdp_vdev *vdev,
+					 ol_txrx_rx_fp *stack_fn,
+					 ol_osif_vdev_handle *osif_vdev);
 };
 
 struct cdp_ctrl_ops {