1 files changed, 15 insertions, 0 deletions

diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index bec19d5cff26..4d7e708c07d1 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -27,6 +27,7 @@
 
 struct inet_bind_bucket;
 struct inet_hashinfo;
+struct tcp_congestion_ops;
 
 /** inet_connection_sock - INET connection oriented sock
  *
@@ -35,10 +36,13 @@ struct inet_hashinfo;
  * @icsk_timeout:          Timeout
  * @icsk_retransmit_timer: Resend (no ack)
  * @icsk_rto:              Retransmit timeout
+ * @icsk_ca_ops            Pluggable congestion control hook
+ * @icsk_ca_state:         Congestion control state
  * @icsk_retransmits:      Number of unrecovered [RTO] timeouts
  * @icsk_pending:          Scheduled timer event
  * @icsk_backoff:          Backoff
  * @icsk_syn_retries:      Number of allowed SYN (or equivalent) retries
+ * @icsk_probes_out:       unanswered 0 window probes
  * @icsk_ack:              Delayed ACK control data
  */
 struct inet_connection_sock {
@@ -50,10 +54,14 @@ struct inet_connection_sock {
         struct timer_list         icsk_retransmit_timer;
         struct timer_list         icsk_delack_timer;
         __u32                     icsk_rto;
+        struct tcp_congestion_ops *icsk_ca_ops;
+        __u8                      icsk_ca_state;
         __u8                      icsk_retransmits;
         __u8                      icsk_pending;
         __u8                      icsk_backoff;
         __u8                      icsk_syn_retries;
+        __u8                      icsk_probes_out;
+        /* 2 BYTES HOLE, TRY TO PACK! */
         struct {
                 __u8              pending;       /* ACK is pending                         */
                 __u8              quick;         /* Scheduled number of quick acks         */
@@ -65,6 +73,8 @@ struct inet_connection_sock {
                 __u16             last_seg_size; /* Size of last incoming segment          */
                 __u16             rcv_mss;       /* MSS used for delayed ACK decisions     */ 
         } icsk_ack;
+        u32                       icsk_ca_priv[16];
+#define ICSK_CA_PRIV_SIZE       (16 * sizeof(u32))
 };
 
 #define ICSK_TIME_RETRANS       1       /* Retransmit timer */
@@ -77,6 +87,11 @@ static inline struct inet_connection_sock *inet_csk(const struct sock *sk)
         return (struct inet_connection_sock *)sk;
 }
 
+static inline void *inet_csk_ca(const struct sock *sk)
+{
+        return (void *)inet_csk(sk)->icsk_ca_priv;
+}
+
 extern struct sock *inet_csk_clone(struct sock *sk,
                                    const struct request_sock *req,
                                    const unsigned int __nocast priority);