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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2007-12-12 13:50:51 -0200
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:57:18 -0800
commit8a9c7e92e0ca97632126feee32ba2698b4eb6c8f (patch)
treeb569d6e39f3630f7a973814a925502035c63904b /net/dccp/ccids/ccid3.h
parent[TFRC]: Loss interval code needs the macros/inlines that were moved (diff)
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[TFRC]: Ringbuffer to track loss interval history
A ringbuffer-based implementation of loss interval history is easier to maintain, allocate, and update. The `swap' routine to keep the RX history sorted is due to and was written by Arnaldo Carvalho de Melo, simplifying an earlier macro-based variant. Details: * access to the Loss Interval Records via macro wrappers (with safety checks); * simplified, on-demand allocation of entries (no extra memory consumption on lossless links); cache allocation is local to the module / exported as service; * provision of RFC-compliant algorithm to re-compute average loss interval; * provision of comprehensive, new loss detection algorithm - support for all cases of loss, including re-ordered/duplicate packets; - waiting for NDUPACK=3 packets to fill the hole; - updating loss records when a late-arriving packet fills a hole. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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