--- zzzz-none-000/linux-5.15.111/net/socket.c	2023-05-11 14:00:40.000000000 +0000
+++ puma7-atom-6670-761/linux-5.15.111/net/socket.c	2024-02-07 10:23:31.000000000 +0000
@@ -52,6 +52,13 @@
  *	Based upon Swansea University Computer Society NET3.039
  */
 
+/*
+  Includes MaxLinear's changes dated: 2021,2022,2023.
+  Changed portions - Copyright 2020-2023, MaxLinear, Inc.
+  Includes Intel Corporation's changes dated: 2017,2018.
+  Changed portions - Copyright 2017-2020, Intel Corporation.
+*/
+
 #include <linux/ethtool.h>
 #include <linux/mm.h>
 #include <linux/socket.h>
@@ -93,7 +100,7 @@
 #include <net/compat.h>
 #include <net/wext.h>
 #include <net/cls_cgroup.h>
-
+#include <net/rtnetlink.h>
 #include <net/sock.h>
 #include <linux/netfilter.h>
 
@@ -213,6 +220,7 @@
 	[PF_SMC]	= "PF_SMC",
 	[PF_XDP]	= "PF_XDP",
 	[PF_MCTP]	= "PF_MCTP",
+	[PF_HWMBOX]	= "PF_HWMBOX",
 };
 
 /*
@@ -423,6 +431,18 @@
 	.kill_sb =	kill_anon_super,
 };
 
+
+static DEFINE_MUTEX(toe_set_hook_mutex);
+static int (*toe_acceleration_flag_set_hook)(struct sock *, struct pid *, enum toe_acceleration_flag_set_act);
+
+void toe_set_hook(int (*hook)(struct sock *, struct pid *, enum toe_acceleration_flag_set_act))
+{
+	mutex_lock(&toe_set_hook_mutex);
+	toe_acceleration_flag_set_hook = hook;
+	mutex_unlock(&toe_set_hook_mutex);
+}
+EXPORT_SYMBOL(toe_set_hook);
+
 /*
  *	Obtains the first available file descriptor and sets it up for use.
  *
@@ -455,6 +475,7 @@
 struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname)
 {
 	struct file *file;
+	struct pid *toe_pid;
 
 	if (!dname)
 		dname = sock->sk ? sock->sk->sk_prot_creator->name : "";
@@ -470,6 +491,15 @@
 	sock->file = file;
 	file->private_data = sock;
 	stream_open(SOCK_INODE(sock), file);
+	if (sock->sk) {
+		mutex_lock(&toe_set_hook_mutex);
+		if (toe_acceleration_flag_set_hook) {
+			toe_pid = find_get_pid(task_pid_nr(current));
+			toe_acceleration_flag_set_hook(sock->sk, toe_pid, SOCKET_ALLOCATE);
+			put_pid(toe_pid);
+		}
+		mutex_unlock(&toe_set_hook_mutex);
+	}
 	return file;
 }
 EXPORT_SYMBOL(sock_alloc_file);
@@ -641,6 +671,16 @@
 
 static void __sock_release(struct socket *sock, struct inode *inode)
 {
+	struct pid * toe_pid;
+	if (sock->sk) {
+		mutex_lock(&toe_set_hook_mutex);
+		if (toe_acceleration_flag_set_hook) {
+			toe_pid = find_get_pid(task_pid_nr(current));
+			toe_acceleration_flag_set_hook(sock->sk, toe_pid, SOCKET_RELEASE);
+			put_pid(toe_pid);
+		}
+		mutex_unlock(&toe_set_hook_mutex);
+	}
 	if (sock->ops) {
 		struct module *owner = sock->ops->owner;
 
@@ -1082,6 +1122,12 @@
 }
 EXPORT_SYMBOL(brioctl_set);
 
+br_ioctl_hook_t brioctl_get(void)
+{
+	return br_ioctl_hook;
+}
+EXPORT_SYMBOL(brioctl_get);
+
 int br_ioctl_call(struct net *net, struct net_bridge *br, unsigned int cmd,
 		  struct ifreq *ifr, void __user *uarg)
 {
@@ -1152,6 +1198,9 @@
 	void __user *argp = (void __user *)arg;
 	int pid, err;
 	struct net *net;
+#ifdef CONFIG_AVM_SK_TC_INDEX
+	unsigned long tc_index;
+#endif
 
 	sock = file->private_data;
 	sk = sock->sk;
@@ -1234,6 +1283,20 @@
 			err = dev_ifconf(net, argp);
 			break;
 
+#ifdef CONFIG_AVM_SK_TC_INDEX
+		case SIOCSET_TC_INDEX:
+			err = -EFAULT;
+			if (get_user(tc_index, (unsigned long __user *)argp))
+				break;
+			sock->sk->sk_tc_index = tc_index;
+			err = 0;
+			break;
+
+		case SIOCGET_TC_INDEX:
+			err = put_user(sock->sk->sk_tc_index, (unsigned long __user *)argp);
+			break;
+#endif
+
 		default:
 			err = sock_do_ioctl(net, sock, cmd, arg);
 			break;