[nrf noup] Bluetooth: Mesh: Disable processing of ext ADV packets

Disable processing of extended ADV packets by mesh scanner.
This is done to prevent loss of scan time due to reception
of pointer packets while scanning for mesh packets.

Signed-off-by: Ingar Kulbrandstad <[email protected]>
(cherry picked from commit 542b335)

Author: Balaklaka

subsys/bluetooth/mesh/Kconfig

@@ -214,6 +214,17 @@ config BT_MESH_ADV_EXT_FRIEND_SEPARATE
 	  messages as close to the start of the ReceiveWindow as possible,
 	  thus reducing the scanning time on the Low Power node.
 
+config BT_MESH_ADV_EXT_ACCEPT_EXT_ADV_PACKETS
+	bool "Reject or accept extended advertising packets"
+	depends on BT_LL_SOFTDEVICE
+	help
+	  Configure the scanner and initiator to either reject or accept extended
+	  advertising packets by the SoftDevice Controller. This is set to false
+	  by default, to prevent loss of scan time when receiving a pointer packet
+	  while scanning for Bluetooth Mesh packets. Set to true if extended
+	  advertising packets are to be received by the SoftDevice Controller for
+	  purposes other than Bluetooth Mesh.
+
 endif # BT_MESH_ADV_EXT
 
 endchoice

subsys/bluetooth/mesh/adv_ext.c

@@ -519,6 +519,18 @@ void bt_mesh_adv_init(void)
 				   K_PRIO_COOP(MESH_WORKQ_PRIORITY), NULL);
 		k_thread_name_set(&bt_mesh_workq.thread, "BT MESH WQ");
 	}
+
+#if defined(CONFIG_BT_LL_SOFTDEVICE)
+	const sdc_hci_cmd_vs_scan_accept_ext_adv_packets_set_t cmd_params = {
+		.accept_ext_adv_packets = IS_ENABLED(CONFIG_BT_MESH_ADV_EXT_ACCEPT_EXT_ADV_PACKETS),
+	};
+
+	int err = sdc_hci_cmd_vs_scan_accept_ext_adv_packets_set(&cmd_params);
+
+	if (err) {
+		LOG_ERR("Failed to set accept_ext_adv_packets: %d", err);
+	}
+#endif
 }
 
 static struct bt_mesh_ext_adv *adv_instance_find(struct bt_le_ext_adv *instance)