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).
*/
u32 snd_ssthresh; /* Slow start size threshold */
u32 snd_cwnd; /* Sending congestion window */
- u16 snd_cwnd_cnt; /* Linear increase counter */
+ u32 snd_cwnd_cnt; /* Linear increase counter */
u32 snd_cwnd_clamp; /* Do not allow snd_cwnd to grow above this */
u32 snd_cwnd_used;
u32 snd_cwnd_stamp;
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;
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 */