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| author |   Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2006-11-28 19:51:42 -0200 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2006-12-02 21:31:01 -0800 |
| commit | a79ef76f4d8424324c2f108824a7398571193f43 (patch) | |
| tree | a80e84d19c867e1432fc05ae50199487ce2ea2b2 /net/dccp/ccids/ccid3.h | |
| parent | [DCCP]: Make {set,get}sockopt(DCCP_SOCKOPT_PACKET_SIZE) return 0 (diff) | |
| download | linux-dev-a79ef76f4d8424324c2f108824a7398571193f43.tar.xz linux-dev-a79ef76f4d8424324c2f108824a7398571193f43.zip | |
[DCCP] ccid3: Larger initial windows
This implements the larger-initial-windows feature for CCID 3, as described in
section 5 of RFC 4342. When the first feedback packet arrives, the sender can
send up to 2..4 packets per RTT, instead of just one.
The patch further
* reduces the number of timestamping calls by passing the timestamp value
(which is computed in one of the calling functions anyway) as argument
* renames one constant with a very long name into one which is shorter and
resembles the one in RFC 3448 (t_mbi)
* simplifies some of the min_t/max_t cases where both `x', `y' have the same
type
Commiter note: renamed TFRC_t_mbi to TFRC_T_MBI, to follow Linux coding style.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'net/dccp/ccids/ccid3.h')
| -rw-r--r-- | net/dccp/ccids/ccid3.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h index dbb884426dfa..27cb20ae1da8 100644 --- a/net/dccp/ccids/ccid3.h +++ b/net/dccp/ccids/ccid3.h @@ -48,8 +48,8 @@ /* In usecs - half the scheduling granularity as per RFC3448 4.6 */ #define TFRC_OPSYS_HALF_TIME_GRAN (USEC_PER_SEC / (2 * HZ)) -/* In seconds */ -#define TFRC_MAX_BACK_OFF_TIME 64 +/* Parameter t_mbi from [RFC 3448, 4.3]: backoff interval in seconds */ +#define TFRC_T_MBI 64 #define TFRC_SMALLEST_P 40 |