[PATCH 0/1] ib/ipoib: Added adaptive moderation algorithm for better latency.

Hi Roland,

The following patch adds a new algorithm for adaptive moderation.
The main idea is changing the CQ moderation (only for the RX) according to the 
traffic.
The Adaptive moderation is controlled via ethtool: adaptive-rx on/off.
(more details in the patch itself.)

Some results without/with adaptive-rx:
--------------------------------------
for latency i run the test: 
	netperf -n 8 -H 11.134.14.1 -c -C -P 1 -t UDP_RR -l 10
for BW i run the test:
	iperf -c 11.134.14.1 -l 64K -P8

first setup:
	no adaptive moderation, default moderation values:
	 rx-usecs: 0 rx-frames: 0
	we will get the next results:
	latency 9 usec 
	BW 6.60 Gbits/sec

second setup:
	no adaptive moderation, manually, moderation values:
	 rx-usecs: 10 rx-frames: 44
	we will get the next results:
	latency 18 usec 
	BW 8.50 Gbits/sec

third setup:	
	adaptive moderation on (Adaptive RX: on)
	we will get the next results:
	latency 9 usec 
	BW 8.60 Gbits/sec


As you can see, the adaptive moderation takes the "good" both tests (from 
different kind of traffic).

Thanks, Erez
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