This resubmission represents the same changeset as before, but with a
significant reduction in the number of patches: from 40 down to 16.
While an even smaller number of patches would be possible, this would
lump together unrelated changes, which should be avoided (ugly).
The set is line-by-line identical with the previous CCID3, apart from
two format differences detailed below.
Major changes:
1. All `glue' patches have been removed, each patch solves an actual problem.
2. All patch inter-dependencies have been completely removed:
T h e e n t i r e t e s t t r e e i s n o w f u l l y b i s e
c t a b l e
This has been exhaustively verified on three different architectures: doing
a full module build (not just source compilation) for each single patch in
the test tree. This passed in all cases.
The two changes are
(a) I have added myself as MODULE_AUTHOR in ccids/lib/tfrc_module.c, so as to
get
emails about bugs (not that I believe/hope there are much, the code has
been
running allright for over 9 months now).
(b) Another update with regard to Documentation/CodingStyle (in ccid3.c):
- } else if (tfrc_lh_update_i_mean(&hcrx->ccid3hcrx_li_hist, skb))
+ } else if (tfrc_lh_update_i_mean(&hcrx->ccid3hcrx_li_hist,
skb)) {
/*
* Step (3) of [RFC 3448, 6.1]: Recompute I_mean and,
if I_mean
* has decreased (resp. p has increased), send feedback
now.
*/
do_feedback = FBACK_PARAM_CHANGE;
+ }
You can verify this by running a diff as follows:
git-checkout -b old master
curl
http://www.erg.abdn.ac.uk/users/gerrit/dccp/testing_dccp/test-tree/test-tree_2.6.24-rc2.diff.gz|gzip
-d|patch -p1
git-add net/dccp/ccids/lib/tfrc_module.c; git-commit -a -mold
git-checkout -b new master
git-pull git://eden-feed.erg.abdn.ac.uk/dccp_exp dccp
git-diff old..new
I have updated the CCID4 patches to match this change also.
Ian, since you signed off every single of the 40 previous patches, I have kept
your Signed-off-by's for this resubmission, since it is effectively identical
with before.
--------------------------------- Detailed Patch listing
-------------------------------------------------------------
Patch #1: Rectifies incorrect use of MSS instead of `s' in the CCID3 code.
Patch #2: Removes a code block which reports trivial/negligible amounts of
Elapsed Time.
Patch #3: Better detection of application-limited and idle periods.
Patch #4: Inline for moving average (EWMA).
Patch #5: Migrate & update TFRC TX history to singly-linked list.
Patch #6: Remove old TFRC TX history infrastructure.
Patch #7: Provide one file which holds the module build for dccp_tfrc_lib
together.
Patch #9: Reduce TFRC RX history to a small structure of only 4 entries (and
that is sufficient).
Patch #10: Hook up new TFRC RX history with CCID3.
Patch #11: Remove old TFRC RX history infrastructure.
Patch #12: Introduce ringbuffer-based loss intervals database (which
updates/completes many of the loss algorithms).
Patch #13: Interface new loss intervals database with CCID3.
Patch #14: Remove old loss interval tracking infrastructure.
Patch #15: Implement rfc3448bis changes to feedback reception (code used the
old RFC 3448).
Patch #16: Implement rfc3448bis changes to nofeedback timer handling (code used
the old RFC 3448).
As before, the entire changeset is fully documented on
http://www.erg.abdn.ac.uk/users/gerrit/dccp/notes/ccid3_packet_reception/
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