--- zzzz-none-000/linux-5.15.111/net/8021q/vlan.c	2023-05-11 14:00:40.000000000 +0000
+++ puma7-arm-6670-761/linux-5.15.111/net/8021q/vlan.c	2024-02-07 09:28:09.000000000 +0000
@@ -14,6 +14,18 @@
  *		Use hash table for VLAN groups - David S. Miller <davem@redhat.com>
  */
 
+/*
+ * Includes MaxLinear's changes dated: 2022.
+ * Changed portions - Copyright (c) 2022, MaxLinear, Inc.
+ * Includes Intel Corporation's changes dated: 2017.
+ * Changed portions - Copyright (c) 2017, Intel Corporation.
+ */
+
+/*
+ * Includes Intel Corporation's changes/modifications dated: 2017.
+ * Changed/modified portions - Copyright (c) 2017, Intel Corporation.
+ */
+
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/capability.h>
@@ -33,6 +45,7 @@
 #include <linux/uaccess.h>
 
 #include <linux/if_vlan.h>
+#include <linux/ti_hil.h>
 #include "vlan.h"
 #include "vlanproc.h"
 
@@ -98,7 +111,13 @@
 
 	vlan_info = rtnl_dereference(real_dev->vlan_info);
 	BUG_ON(!vlan_info);
-
+#ifdef CONFIG_TI_PACKET_PROCESSOR	
+    /* Send an event to HIL PP indicating that the VLAN
+     * device is being brought down. The HIL PP could 
+     * clean up any if existing references to this VLAN 
+     * device in its domain. */
+    ti_hil_pp_event(TI_VLAN_DEV_DELETED, (void *)dev);
+#endif //CONFIG_TI_PACKET_PROCESSOR
 	grp = &vlan_info->grp;
 
 	grp->nr_vlan_devs--;
@@ -193,6 +212,16 @@
 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, dev);
 	grp->nr_vlan_devs++;
 
+#ifdef CONFIG_TI_PACKET_PROCESSOR
+    /* Inheritance at work here. We copy the VPID Information block from the parent device
+     * to the new VLAN virtual device. */
+    ti_hil_clone_netdev_pp_info(dev, real_dev);
+
+    /* Send an event to HIL PP indicating that a new VLAN device
+     * is being created. The HIL may store the VLAN info and use it 
+     * later for PP session creation and acceleration decision making */
+    ti_hil_pp_event(TI_VLAN_DEV_CREATED, (void *)dev);
+#endif
 	return 0;
 
 out_unregister_netdev:
@@ -277,7 +306,16 @@
 	err = register_vlan_dev(new_dev, NULL);
 	if (err < 0)
 		goto out_free_newdev;
-
+#ifdef CONFIG_TI_PACKET_PROCESSOR
+    /* Inheritance at work here. We copy the VPID Information block from the parent device
+     * to the new VLAN virtual device. */
+    ti_hil_clone_netdev_pp_info(new_dev, real_dev);
+
+    /* Send an event to HIL PP indicating that a new VLAN device
+     * is being created. The HIL may store the VLAN info and use it 
+     * later for PP session creation and acceleration decision making */
+    ti_hil_pp_event(TI_VLAN_DEV_CREATED, (void *)new_dev);
+#endif
 	return 0;
 
 out_free_newdev: