linux/net/dccp/ccids
Gerrit Renker fe84f4140f dccp: Return-value convention of hc_tx_send_packet()
This patch reorganises the return value convention of the CCID TX sending
function, to permit more flexible schemes, as required by subsequent patches.

Currently the convention is
 * values < 0     mean error,
 * a value == 0   means "send now", and
 * a value x > 0  means "send in x milliseconds".

The patch provides symbolic constants and a function to interpret return values.

In addition, it caps the maximum positive return value to 0xFFFF milliseconds,
corresponding to 65.535 seconds.  This is possible since in CCID-3/4 the
maximum possible inter-packet gap is fixed at t_mbi = 64 sec.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-28 10:27:00 -07:00
..
lib net: return operator cleanup 2010-09-23 14:33:39 -07:00
ccid2.c dccp: remove unused argument in CCID tx function 2010-10-12 06:57:41 +02:00
ccid2.h dccp ccid-2: Use u32 timestamps uniformly 2010-08-30 13:45:25 -07:00
ccid3.c dccp: Return-value convention of hc_tx_send_packet() 2010-10-28 10:27:00 -07:00
ccid3.h dccp ccid-3: Remove redundant 'options_received' struct 2010-09-21 12:14:26 +02:00
Kconfig dccp ccid-3: use per-route RTO or TCP RTO as fallback 2010-08-30 13:45:28 -07:00