qcacld-3.0: Register classify_critical_pkt_cb with DP

Register callback to classify critical packets with DP layer during
cdp_vdev_register. This callback is needed to classify critical packets
during the forwarding path for SAP vdev.

Change-Id: I5f109c7a4bd37e2544d8e3bbd410147a8d6963c8
CRs-Fixed: 3114436

core/hdd/inc/wlan_hdd_wmm.h

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2011-2012,2016-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022 Qualcomm Innovation Center, Inc. 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
@@ -417,6 +418,28 @@ config_tspec_policy[QCA_WLAN_VENDOR_ATTR_CONFIG_TSPEC_MAX + 1];
 int wlan_hdd_cfg80211_config_tspec(struct wiphy *wiphy,
 				   struct wireless_dev *wdev,
 				   const void *data, int data_len);
+#ifdef QCA_SUPPORT_TX_MIN_RATES_FOR_SPECIAL_FRAMES
+/**
+ * hdd_wmm_classify_pkt_cb() - Call back to identify critical packets
+ * @adapter: adapter for which callback is called
+ * @nbuf: skb for which callback is called
+ *
+ * Callback used by intrabss forwarding path to identify critical packets.
+ * QDF_NBUF_CB_TX_EXTRA_IS_CRITICAL is marked 1 for such packets.
+ * The function also populates sb->priority for these packets.
+ * skb->priority is used as TID for these frames during TX.
+
+ * Return: None
+ */
+void hdd_wmm_classify_pkt_cb(void *adapter,
+			     qdf_nbuf_t nbuf);
+#else
+static inline
+void hdd_wmm_classify_pkt_cb(void *adapter,
+			     qdf_nbuf_t nbuf)
+{
+}
+#endif
 
 #define FEATURE_WMM_COMMANDS						\
 {									\

core/hdd/src/wlan_hdd_softap_tx_rx.c

@@ -1396,7 +1396,8 @@ QDF_STATUS hdd_softap_register_sta(struct hdd_adapter *adapter,
 		}
 
 		txrx_ops.get_tsf_time = hdd_get_tsf_time;
-
+		txrx_ops.tx.tx_classify_critical_pkt_cb =
+					hdd_wmm_classify_pkt_cb;
 		cdp_vdev_register(soc,
 				  adapter->vdev_id,
 				  (ol_osif_vdev_handle)adapter,

core/hdd/src/wlan_hdd_wmm.c

@@ -1990,14 +1990,30 @@ void hdd_wmm_classify_pkt(struct hdd_adapter *adapter,
 			  enum sme_qos_wmmuptype *user_pri,
 			  bool *is_critical)
 {
-	hdd_wmm_get_user_priority_from_ip_tos(adapter, skb, user_pri);
-
 	hdd_wmm_classify_critical_pkt(adapter, skb, user_pri, is_critical);
 
-	if (!is_critical)
+	if (!is_critical) {
+		hdd_wmm_get_user_priority_from_ip_tos(adapter, skb, user_pri);
 		hdd_check_and_upgrade_udp_qos(adapter, skb, user_pri);
+	}
 }
 
+#ifdef QCA_SUPPORT_TX_MIN_RATES_FOR_SPECIAL_FRAMES
+void hdd_wmm_classify_pkt_cb(void *adapter,
+			     struct sk_buff *skb)
+{
+	enum sme_qos_wmmuptype user_pri;
+	bool is_critical;
+
+	hdd_wmm_classify_critical_pkt(adapter, skb, &user_pri, &is_critical);
+
+	if (is_critical) {
+		skb->priority = user_pri;
+		QDF_NBUF_CB_TX_EXTRA_IS_CRITICAL(skb) = true;
+	}
+}
+#endif
+
 #ifdef TX_MULTIQ_PER_AC
 /**
  * hdd_get_tx_queue_for_ac() - Get the netdev tx queue index