aboutsummaryrefslogtreecommitdiff
path: root/include/linux/tcp.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/tcp.h')
-rw-r--r--include/linux/tcp.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index c6b9f92e828..c5b94c1a5ee 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -304,7 +304,6 @@ struct tcp_sock {
u32 rtt_seq; /* sequence number to update rttvar */
u32 packets_out; /* Packets which are "in flight" */
- u32 left_out; /* Packets which leaved network */
u32 retrans_out; /* Retransmitted packets out */
/*
* Options received (usually on last packet, some only on SYN packets).
@@ -333,6 +332,9 @@ struct tcp_sock {
struct tcp_sack_block_wire recv_sack_cache[4];
+ u32 highest_sack; /* Start seq of globally highest revd SACK
+ * (validity guaranteed only if sacked_out > 0) */
+
/* from STCP, retrans queue hinting */
struct sk_buff* lost_skb_hint;
@@ -341,10 +343,12 @@ struct tcp_sock {
struct sk_buff *forward_skb_hint;
struct sk_buff *fastpath_skb_hint;
- int fastpath_cnt_hint;
+ int fastpath_cnt_hint; /* Lags behind by current skb's pcount
+ * compared to respective fackets_out */
int lost_cnt_hint;
int retransmit_cnt_hint;
- int forward_cnt_hint;
+
+ u32 lost_retrans_low; /* Sent seq after any rxmit (lowest) */
u16 advmss; /* Advertised MSS */
u16 prior_ssthresh; /* ssthresh saved at recovery start */