diff options
| author | Stephen Hemminger <shemminger@osdl.org> | 2004-01-31 19:17:59 -0800 |
|---|---|---|
| committer | David S. Miller <davem@nuts.davemloft.net> | 2004-01-31 19:17:59 -0800 |
| commit | 773be16ac8414a8b10b5e31ea12310d8ca49eb47 (patch) | |
| tree | eafde879a46d1b1ba604b964e075eed4b9fda479 /include/linux | |
| parent | 9902459906dfedde06688ce4582621d8c7e3575b (diff) | |
[TCP]: Port 2.4.x version of TCP Westwood support to 2.6.x
Original 2.4.x version by Angelo Dell'Aera (buffer@antifork.org)
Here is the 2.4 version with some cleanups converted to 2.6.
- use tcp_ prefix (dave)
- get rid of rwlock not needed (dave)
- do some hand optimization of the inline's
- don't make init inline
- get rid of extra whitespace
- eliminate accessor for mss_cache
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sysctl.h | 1 | ||||
| -rw-r--r-- | include/linux/tcp.h | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index b8806feac0b5..935be9d21b69 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -311,6 +311,7 @@ enum NET_TCP_FRTO=92, NET_TCP_LOW_LATENCY=93, NET_IPV4_IPFRAG_SECRET_INTERVAL=94, + NET_TCP_WESTWOOD=95, }; enum { diff --git a/include/linux/tcp.h b/include/linux/tcp.h index d25e5bd21c4d..1b35358879ce 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -374,6 +374,20 @@ struct tcp_opt { __u32 frto_highmark; /* snd_nxt when RTO occurred */ unsigned long last_synq_overflow; + +/* TCP Westwood structure */ + struct { + __u32 bw_sample; /* bandwidth sample */ + __u32 bw_ns_est; /* first bandwidth estimation..not too smoothed 8) */ + __u32 bw_est; /* bandwidth estimate */ + __u32 rtt_win_sx; /* here starts a new evaluation... */ + __u32 bk; + __u32 snd_una; /* used for evaluating the number of acked bytes */ + __u32 cumul_ack; + __u32 accounted; + __u32 rtt; + __u32 rtt_min; /* minimum observed RTT */ + } westwood; }; /* WARNING: don't change the layout of the members in tcp_sock! */ |