ouroboros/src/ipcpd/unicast/pol/ca-mb-ecn.c, branch 0.18.2

ipcpd: Fix congestion window scaling

2021-06-21T06:45:42+00:00

This fixes scaling of the congestion window, which was a buggy mess. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Update email addresses

2021-01-03T10:57:05+00:00

The ugent email addresses are shut down, updated to Ouroboros mail addresses. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Update copyright to 2021

2021-01-03T10:56:28+00:00

Happy New Year, Ouroboros! Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Pass qoscube to ECN marking function

2020-12-20T12:36:44+00:00

The ECN marking function should be able to use the packet QoS to allow prioritizing traffic under congestion. Not yet implemented in MB-ECN. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Remove unused variable in MB-ECN policy

2020-12-12T10:38:05+00:00

The t_sent variable is a remnant from the first version and isn't needed anymore. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Pass previous ECN value in congestion API

2020-12-12T10:38:00+00:00

The previous value of the ECN field should be passed to the congestion notification function. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Fix slow start in multi-bit (F)ECN policy

2020-12-07T17:39:45+00:00

There is a check not to rapidly double the window to astronomical sizes when there is no congestion experienced for long periods of time, but the if-else logic was botched and it still grew to astronomical sizes (albeit linear instead of exponential). I also lowered the ECN threshold a bit. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Fix off-by-one in Multi-bit (F)ECN policy

2020-12-05T15:01:16+00:00

Noticed an off-by-one in the packet counter because it was incremented before and the byte counter after the flow update. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Add RIB statistics for flow allocator

2020-12-05T15:00:21+00:00

The RIB will now show some stats for the flow allocator, including congestion avoidance statistics. This is needed before decoupling the data transfer component and the flow allocator as some current stats show in DT will move to FA. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Simplify multi-bit (F)ECN policy

2020-12-02T18:23:18+00:00

The mb-ecn policy has a couple of divisions in the math, which I wanted to avoid. Now it measures the number of bytes sent in a window, and updates the next window with AIMD logic. If the number of bytes in the window is reached, the call blocks. To avoid long packet bursts, the window size continually scales to contain between CA_MINPS (8) and CA_MAXPS (64) packets. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders