qcacmn: Add cdp ops for MSCS feature

Add a new cdp datapath ops - mscs_ops for Mirrored
stream classification signalling feature. This function
will be invoked from ECM flow acceleration manager

Change-Id: I749623846395057b6ea8328c881efa8733700b0e

dp/inc/cdp_txrx_mscs.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2020 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
+ * 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.
+ */
+
+/**
+ * @file cdp_txrx_mscs.h
+ * @brief Define the host data path MSCS API functions
+ * called by the host control SW and the OS interface module
+ */
+#ifndef _CDP_TXRX_MSCS_H_
+#define _CDP_TXRX_MSCS_H_
+#include "cdp_txrx_handle.h"
+#ifdef WLAN_SUPPORT_MSCS
+/**
+ * @brief find MSCS enabled peer for this mac address and validate priority
+ * @details
+ *  This function checks if there is a peer for this mac adress with MSCS
+ *  enabled flag set and nbuf priority is valid from user priority bitmap.
+ *
+ * @param peer_mac - mac address of peer
+ * @param nbuf - nbuf pointer
+ * @return - 0 for non error case, 1 for failure
+ */
+static inline int
+cdp_mscs_peer_lookup_n_get_priority(ol_txrx_soc_handle soc,
+	uint8_t *peer_mac,
+	qdf_nbuf_t nbuf)
+{
+	if (!soc || !soc->ops || !soc->ops->mscs_ops) {
+		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_FATAL,
+				"%s invalid instance", __func__);
+		return 1;
+	}
+
+	if (soc->ops->mscs_ops->mscs_peer_lookup_n_get_priority)
+		soc->ops->mscs_ops->mscs_peer_lookup_n_get_priority(soc,
+						peer_mac, nbuf);
+	return 0;
+}
+#endif
+#endif

dp/inc/cdp_txrx_ops.h

@@ -1693,6 +1693,18 @@ struct cdp_cfr_ops {
 };
 #endif
 
+#ifdef WLAN_SUPPORT_MSCS
+/**
+ * struct cdp_mscs_ops - data path ops for MSCS
+ * @mscs_peer_lookup_n_get_priority:
+ */
+struct cdp_mscs_ops {
+	int (*mscs_peer_lookup_n_get_priority)(struct cdp_soc_t *soc,
+			      uint8_t *peer_mac,
+				  qdf_nbuf_t nbuf);
+};
+#endif
+
 struct cdp_ops {
 	struct cdp_cmn_ops          *cmn_drv_ops;
 	struct cdp_ctrl_ops         *ctrl_ops;
@@ -1728,6 +1740,9 @@ struct cdp_ops {
 #if defined(WLAN_CFR_ENABLE) && defined(WLAN_ENH_CFR_ENABLE)
 	struct cdp_cfr_ops          *cfr_ops;
 #endif
+#ifdef WLAN_SUPPORT_MSCS
+	struct cdp_mscs_ops         *mscs_ops;
+#endif
 
 };
 #endif

dp/wifi3.0/dp_main.c

@@ -68,6 +68,9 @@ cdp_dump_flow_pool_info(struct cdp_soc_t *soc)
 #ifdef FEATURE_WDS
 #include "dp_txrx_wds.h"
 #endif
+#ifdef WLAN_SUPPORT_MSCS
+#include "dp_mscs.h"
+#endif
 #ifdef ATH_SUPPORT_IQUE
 #include "dp_txrx_me.h"
 #endif
@@ -10962,6 +10965,12 @@ static struct cdp_cfr_ops dp_ops_cfr = {
 };
 #endif
 
+#ifdef WLAN_SUPPORT_MSCS
+static struct cdp_mscs_ops dp_ops_mscs = {
+	.mscs_peer_lookup_n_get_priority = dp_mscs_peer_lookup_n_get_priority,
+};
+#endif
+
 #ifdef FEATURE_RUNTIME_PM
 /**
  * dp_runtime_suspend() - ensure DP is ready to runtime suspend
@@ -11614,6 +11623,9 @@ static struct cdp_ops dp_txrx_ops = {
 #if defined(WLAN_CFR_ENABLE) && defined(WLAN_ENH_CFR_ENABLE)
 	.cfr_ops = &dp_ops_cfr,
 #endif
+#ifdef WLAN_SUPPORT_MSCS
+	.mscs_ops = &dp_ops_mscs,
+#endif
 };
 
 /*