function renaming and enable interception to handle urg pointer in rx

drivers/net/ethernet/broadcom/bnx2x/sme/ptcp_hooks.c

@@ -36,7 +36,7 @@
 
 struct ptcp_hook_heads ptcp_hook_heads = {
   .print_sock_skb = LIST_HEAD_INIT(ptcp_hook_heads.print_sock_skb),
-  .handle_tcp_urg = LIST_HEAD_INIT(ptcp_hook_heads.handle_tcp_urg),
+  .rx_handle_tcp_urg = LIST_HEAD_INIT(ptcp_hook_heads.rx_handle_tcp_urg),
   .rx_adjust_skb_size = LIST_HEAD_INIT(ptcp_hook_heads.rx_adjust_skb_size),
   .rx_adjust_copied_seq = LIST_HEAD_INIT(ptcp_hook_heads.rx_adjust_copied_seq),
   .tx_adjust_skb_size = LIST_HEAD_INIT(ptcp_hook_heads.tx_adjust_skb_size),
@@ -50,11 +50,11 @@ void ptcp_print_sock_skb(struct sock *sk, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ptcp_print_sock_skb);
 
-int ptcp_handle_tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
+int ptcp_rx_handle_tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
 {
-  return call_ptcp_int_hook(handle_tcp_urg, -1, sk, skb, th);
+  return call_ptcp_int_hook(rx_handle_tcp_urg, -1, sk, skb, th);
 }
-EXPORT_SYMBOL(ptcp_handle_tcp_urg);
+EXPORT_SYMBOL(ptcp_rx_handle_tcp_urg);
 
 int ptcp_rx_adjust_skb_size(struct sock *sk, struct sk_buff *skb, int req_len,
     int offset, int chunk, int copied, int flags)

drivers/net/ethernet/broadcom/bnx2x/sme/ptcp_hooks.h

@@ -16,7 +16,7 @@
 #include <linux/tcp.h>
 
 void ptcp_print_sock_skb(struct sock *sk, struct sk_buff *skb);
-int ptcp_handle_tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th);
+int ptcp_rx_handle_tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th);
 int ptcp_rx_adjust_skb_size(struct sock *sk, struct sk_buff *skb, int req_len,
     int offset, int chunk, int copied, int flags);
 int ptcp_rx_adjust_copied_seq(struct sock *sk, struct sk_buff *skb, int old_skb_len);

drivers/net/ethernet/broadcom/bnx2x/sme/ptcp_hooks_impl.c

@@ -23,14 +23,14 @@ ptcp_impl_print_sock_skb(struct sock *sk, struct sk_buff *skb)
   }
 }
 
-int (*lnk_handle_tcp_urg) (struct sock *sk, struct sk_buff *skb,
+int (*lnk_rx_handle_tcp_urg) (struct sock *sk, struct sk_buff *skb,
     struct tcphdr *th) = 0;
-EXPORT_SYMBOL(lnk_handle_tcp_urg);
+EXPORT_SYMBOL(lnk_rx_handle_tcp_urg);
 static int
-ptcp_impl_handle_tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
+ptcp_impl_rx_handle_tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
 {
-  if (lnk_handle_tcp_urg) {
-    return lnk_handle_tcp_urg(sk, skb, th);
+  if (lnk_rx_handle_tcp_urg) {
+    return lnk_rx_handle_tcp_urg(sk, skb, th);
   }
 
   return -1;
@@ -105,7 +105,7 @@ ptcp_impl_tx_adjust_iphdr(struct sock *sk, struct sk_buff *skb)
 
 struct ptcp_hook_list ptcp_hooks[NUM_PTCP_HOOKS] = {
   PTCP_HOOK_INIT(print_sock_skb, ptcp_impl_print_sock_skb),
-  PTCP_HOOK_INIT(handle_tcp_urg, ptcp_impl_handle_tcp_urg),
+  PTCP_HOOK_INIT(rx_handle_tcp_urg, ptcp_impl_rx_handle_tcp_urg),
   PTCP_HOOK_INIT(rx_adjust_skb_size, ptcp_impl_rx_adjust_skb_size),
   PTCP_HOOK_INIT(rx_adjust_copied_seq, ptcp_impl_rx_adjust_copied_seq),
   PTCP_HOOK_INIT(tx_adjust_skb_size, ptcp_impl_tx_adjust_skb_size),

drivers/net/ethernet/broadcom/bnx2x/sme/ptcp_hooks_impl.h

@@ -25,7 +25,7 @@
 
 union ptcp_list_options {
   void (*print_sock_skb) (struct sock *sk, struct sk_buff *skb);
-  int (*handle_tcp_urg) (struct sock *sk, struct sk_buff *skb, struct tcphdr *th);
+  int (*rx_handle_tcp_urg) (struct sock *sk, struct sk_buff *skb, struct tcphdr *th);
   int (*rx_adjust_skb_size) (struct sock *sk, struct sk_buff *skb, int req_len,
       int offset, int chunk, int copied, int flags);
   int (*rx_adjust_copied_seq) (struct sock *sk, struct sk_buff *skb, int old_skb_len);
@@ -37,7 +37,7 @@ union ptcp_list_options {
 
 struct ptcp_hook_heads {
   struct list_head print_sock_skb;
-  struct list_head handle_tcp_urg;
+  struct list_head rx_handle_tcp_urg;
   struct list_head rx_adjust_skb_size;
   struct list_head rx_adjust_copied_seq;
   struct list_head tx_adjust_skb_size;

net/ipv4/tcp_input.c

@@ -66,6 +66,9 @@
 #ifdef CONFIG_XEN_SME
   #include "../../drivers/net/ethernet/broadcom/bnx2x/sme/xen_sme_hooks.h"
 #endif 
+#ifdef CONFIG_PACER_TCP
+#include "../../drivers/net/ethernet/broadcom/bnx2x/sme/ptcp_hooks.h"
+#endif
 
 #include <linux/mm.h>
 #include <linux/slab.h>
@@ -5287,6 +5290,12 @@ static void tcp_urg(struct sock *sk, struct sk_buff *skb, const struct tcphdr *t
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
+#if CONFIG_PACER_TCP
+  int ret = ptcp_rx_handle_tcp_urg(sk, skb, (struct tcphdr *) th);
+  if (ret >= 0)
+    return;
+#endif
+
 	/* Check if we get a new urgent pointer - normally not. */
 	if (th->urg)
 		tcp_check_urg(sk, th);