diff options
Diffstat (limited to 'net/dccp/ccids/ccid2.h')
| -rw-r--r-- | net/dccp/ccids/ccid2.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/net/dccp/ccids/ccid2.h b/net/dccp/ccids/ccid2.h index d5900dd5d4f..8b7a2dee2f6 100644 --- a/net/dccp/ccids/ccid2.h +++ b/net/dccp/ccids/ccid2.h @@ -44,7 +44,12 @@ struct ccid2_seq { * * @{cwnd,ssthresh,pipe}: as per RFC 4341, section 5 * @packets_acked: Ack counter for deriving cwnd growth (RFC 3465) - * @lastrtt: time RTT was last measured + * @srtt: smoothed RTT estimate, scaled by 2^3 + * @mdev: smoothed RTT variation, scaled by 2^2 + * @mdev_max: maximum of @mdev during one flight + * @rttvar: moving average/maximum of @mdev_max + * @rto: RTO value deriving from SRTT and RTTVAR (RFC 2988) + * @rtt_seq: to decay RTTVAR at most once per flight * @rpseq: last consecutive seqno * @rpdupack: dupacks since rpseq * @av_chunks: list of Ack Vectors received on current skb @@ -58,10 +63,13 @@ struct ccid2_hc_tx_sock { int seqbufc; struct ccid2_seq *seqh; struct ccid2_seq *seqt; - long rto; - long srtt; - long rttvar; - unsigned long lastrtt; + /* RTT measurement: variables/principles are the same as in TCP */ + u32 srtt, + mdev, + mdev_max, + rttvar, + rto; + u64 rtt_seq:48; struct timer_list rtotimer; u64 rpseq; int rpdupack; |