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| author | Andrea Bittau <a.bittau@cs.ucl.ac.uk> | 2006-09-19 13:07:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 15:19:11 -0700 |
| commit | d458c25ce24ce00ea547e9976e293e7835416253 (patch) | |
| tree | b15e036537270aa0f70c390556aaa483702fd326 /net/dccp | |
| parent | 29651cda97b0a9e4ac0fbeb5ea731a9909f0f128 (diff) | |
| download | linux-d458c25ce24ce00ea547e9976e293e7835416253.tar.gz linux-d458c25ce24ce00ea547e9976e293e7835416253.tar.bz2 linux-d458c25ce24ce00ea547e9976e293e7835416253.zip | |
[DCCP] CCID2: Initialize ssthresh to infinity
Initialize the slow-start threshold to infinity. This way, upon connection
initiation, slow-start will be exited only upon a packet loss. This patch will
allow connections to quickly gain speed.
Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
| -rw-r--r-- | net/dccp/ccids/ccid2.c | 7 | ||||
| -rw-r--r-- | net/dccp/ccids/ccid2.h | 2 |
2 files changed, 6 insertions, 3 deletions
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c index 54a6b7ef3b7b..699a56674659 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c @@ -678,9 +678,12 @@ static int ccid2_hc_tx_init(struct ccid *ccid, struct sock *sk) int seqcount = ccid2_seq_len; int i; - /* XXX init variables with proper values */ hctx->ccid2hctx_cwnd = 1; - hctx->ccid2hctx_ssthresh = 10; + /* Initialize ssthresh to infinity. This means that we will exit the + * initial slow-start after the first packet loss. This is what we + * want. + */ + hctx->ccid2hctx_ssthresh = ~0; hctx->ccid2hctx_numdupack = 3; /* XXX init ~ to window size... */ diff --git a/net/dccp/ccids/ccid2.h b/net/dccp/ccids/ccid2.h index 451a87464fa5..b4cc6c0bf020 100644 --- a/net/dccp/ccids/ccid2.h +++ b/net/dccp/ccids/ccid2.h @@ -50,7 +50,7 @@ struct ccid2_hc_tx_sock { int ccid2hctx_cwnd; int ccid2hctx_ssacks; int ccid2hctx_acks; - int ccid2hctx_ssthresh; + unsigned int ccid2hctx_ssthresh; int ccid2hctx_pipe; int ccid2hctx_numdupack; struct ccid2_seq *ccid2hctx_seqbuf; |