Hello Romit, [ Disclaimer: I'm also new to IXP2400, so do not take my anwser for a definitive one. ]

From: romit dasgupta [mailto:romit@myrealbox.com] Sent: Thursday, January 15, 2004 5:59 AM

I am working on IXP2400 and want to use the intel provided libraries for microcode loading/initialization and running. And in many occasions I want to access the Resource Manager APIs as well. I read the documents as provided by Intel , mainly the following

Intel IXP2400/IXP2800 Network Processors XScale Support libraries Reference manual.

I have not seen any explicit information in the above document which hints on running the resource manager & core compoent libraries in kernel space. Most of the examples that come with the ixa_sdk_3.1 however loads kernel modules which implements these libraries.

I think you are making an error. Intel libraries are implemented in _user_ space. The kernel module (MeDrv.o) is only used to make microengines CSR _visible_ to user space.

My question is, can i use the Resource Manager API's & Core Component Library in user space, without loading them as modules (perhaps building these as libraries). I can acccess them in kernel space for sure but I have a feeling that it can be done through user space as well. Any insight on this will be highly valuable.

You need the module to access CSR spaces of microengines. Otherwise, all the library are in user space. I hope it helps, Yours, david -- David Mentré - Research engineer (Ph.D.) Mitsubishi Electric ITE-TCL / European Telecommunication Research Lab Phone: +33 2 23 45 58 29 / Fax: +33 2 23 45 58 59 http://www.mitsubishi-electric-itce.fr