[ofa-general] OFED QoS Support

[Tziporet Koren]

QoS is supported only with ConnectX HCA, and not Inifnihost III Ex HCA.

Also only from the coming FW release (2.3.0 that should be published
soon) this feature will be enabled.
Note that it will not be enabled by default and a FW configuration
should be maid to use it
 
Also a good explanation on QoS can be fount in the QoS Support
<http://www.openfabrics.org/archives/nov2007sc/OFA_QoS_07.ppt>
presentation by Sean Hefty, Intel; Dror Goldenberg, Mellanox under:

 
You must use OFED 1.3 to use QoS since it was not supported in OFED 1.2
Yevgeny will be able to help you regarding OSM setup to support QoS
 
Tziporet
 

________________________________

From: general-bounces at lists.openfabrics.org
[mailto:general-bounces at lists.openfabrics.org] On Behalf Of Mukil
Kesavan
Sent: Tuesday, December 04, 2007 7:08 AM
To: general at lists.openfabrics.org
Subject: [ofa-general] OFED QoS Support


Hi,

I am a grad student at Georgia Institute of Technology working on
Infiniband for a project. My focus is on IB QoS support. I used the OFED
1.2 distribution - opensm to configure the SL-VL mappings and the VLArb
tables with the opensm.opts file in /var/cache/osm. Currently, I am
configuring QoS as 1 high priority VL with weight 200 and disabling
other high priority VLs. When I run the tests, there is no change in BW
Avgs as per the QoS setting and it appears that BW is shared evenly
among different applications during the tests.

I currently use a Mellanox MT25208 Inifnihost III Ex HCA - Firmware
version 4.6.0. Could someone help me getting the QoS to work? There are
not a lot of resources on the web and I've been following the email
exchanges amongst you guys involved in development but they aren't
conclusive to me.

Thanks for your time,

Mukil