linux/net/dccp/ccids
Gerrit Renker 9f8681db96 [DCCP] ccid3: Shift window counter computation
This puts the window counter computation [RFC 4342, 8.1] into a separate
 function which is called whenever a new packet is ready for immediate
 transmission in ccid3_hc_tx_send_packet.

Justification:

 The window counter update was previously computed after the packet was sent. This has
 two drawbacks, both fixed by this patch:
   1) re-compute another timestamp almost directly after the packet was sent (expensive),
   2) the CCVal for the window counter is needed at the instant the packet is sent.

Further details:

 The initialisation of the window counter is left in the state NO_SENT, as before.
 The algorithm will do nothing if either RTT is initialised to 0 (which is ok) or if
 the RTT value remains below 4 microseconds (which is almost pathological).

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>
2006-12-11 14:34:52 -08:00
..
lib [DCCP]: Simplify TFRC calculation 2006-12-11 14:34:46 -08:00
ccid2.c [DCCP]: Use `unsigned' for packet lengths 2006-12-02 21:31:02 -08:00
ccid2.h [DCCP] ccid2: Allow window to grow larger 2006-12-02 21:30:34 -08:00
ccid3.c [DCCP] ccid3: Shift window counter computation 2006-12-11 14:34:52 -08:00
ccid3.h [DCCP] ccid3: Sanity-check RTT samples 2006-12-11 14:34:51 -08:00
Kconfig [DCCP]: Use higher RTO default for CCID3 2006-12-03 14:50:23 -02:00
Makefile [DCCP] CCID2: Initial CCID2 (TCP-Like) implementation 2006-03-20 17:41:47 -08:00