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| author | ps <ps@FreeBSD.org> | 2004-06-23 21:04:37 +0000 |
|---|---|---|
| committer | ps <ps@FreeBSD.org> | 2004-06-23 21:04:37 +0000 |
| commit | f5f3e8600b5cd41c8645b3a5d45e20092a8b9ee1 (patch) | |
| tree | 37eceb1297375660ec2d161a79ee2ec7364248b3 /sys/netinet/tcp_seq.h | |
| parent | 933faf5c3e0325440e1ef2edac115dd64ece174c (diff) | |
| download | FreeBSD-src-f5f3e8600b5cd41c8645b3a5d45e20092a8b9ee1.zip FreeBSD-src-f5f3e8600b5cd41c8645b3a5d45e20092a8b9ee1.tar.gz | |
Add support for TCP Selective Acknowledgements. The work for this
originated on RELENG_4 and was ported to -CURRENT.
The scoreboarding code was obtained from OpenBSD, and many
of the remaining changes were inspired by OpenBSD, but not
taken directly from there.
You can enable/disable sack using net.inet.tcp.do_sack. You can
also limit the number of sack holes that all senders can have in
the scoreboard with net.inet.tcp.sackhole_limit.
Reviewed by: gnn
Obtained from: Yahoo! (Mohan Srinivasan, Jayanth Vijayaraghavan)
Diffstat (limited to 'sys/netinet/tcp_seq.h')
| -rw-r--r-- | sys/netinet/tcp_seq.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/netinet/tcp_seq.h b/sys/netinet/tcp_seq.h index d5b1f14..c029b12 100644 --- a/sys/netinet/tcp_seq.h +++ b/sys/netinet/tcp_seq.h @@ -42,6 +42,9 @@ #define SEQ_GT(a,b) ((int)((a)-(b)) > 0) #define SEQ_GEQ(a,b) ((int)((a)-(b)) >= 0) +#define SEQ_MIN(a, b) ((SEQ_LT(a, b)) ? (a) : (b)) +#define SEQ_MAX(a, b) ((SEQ_GT(a, b)) ? (a) : (b)) + /* for modulo comparisons of timestamps */ #define TSTMP_LT(a,b) ((int)((a)-(b)) < 0) #define TSTMP_GEQ(a,b) ((int)((a)-(b)) >= 0) |
