July 2002 - ixp1200 - lists.cs.princeton.edu

Re: [ixp1200] Problem of linux on ixp1200
by Tan Chee-Wei 22 Jul '02

22 Jul '02

Hi Fei Chen, > but I didn't find any document telling me what kind of linux can be used on ixp1200, how to run strongArm and microengine >code on the ethernet evaluation board. Can anyone help me with this? Vera does not use a RTOS such as Bluecat Linux. It uses a mini-kernel that acts as a bridge between an external processor such as a Pentium and the micoengines, similar to something described in section 2.7.1 in Intel Hardware Reference Manual, Dec 2001, Page 31. There is a need to erase the Intel firmware first before using Vera. StrongARM and Microengine codes are compiled into Motorola Hex Format files on Pentium and are then downloaded via the PCI bus onto IXP1200. Princeton also provide the necessary toolchains to compile StrongARM and microengine codes so there is no need to use the Developer Workbench to download the microengine codes as Micro Object files onto IXP1200. regards, cheewei

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L3Fwd16 question
by Charles Chiou 20 Jul '02

20 Jul '02

Hi, I am not very good in reading the microcode, and would appreciate very much if someone could help me out here! I have been trying to get the peth driver to run on the monta vista 2.4.18 kernel. So far, I think I have ported and run the control-plane apps and libraies without any problem. (octmac.o, giga_drv.o, ue.o, rs_udebug, rtmapp, and peth.o). However, I am not sure what to do with the microcode on the data plane side. It appears that the main difference between 2.3.99 and 2.4.18 kernel is that they occupy different SDRAM location. So I made the modification to the MV kernel by: 1. Reserve 0xC600000 - 0xC8000000 for data-plane use 2. Map 0xC6000000 - 0xC8000000 to the IO mem 0xD8000000 - 0xDA000000 I thought if I redefine the following: #define SDRAM_NONCACHE_QWD_START 0xC00100 // 96MB #define SDRAM_NONCACHE_QWD_END 0x400000 // 32MB in the mem_map.h file of L3Fwd16, then the microcode should work fine. Apparently, it seems that the RTM works, and the peth poller thread receives packets from the microcode, but the packet content is not correct. So the xmit and recv are not working... Is there something else I should change in the mircocode too?? This is the output of the peth debug after a "ping" packet to port 0: pethPoller: head= c4, tail= a0 pethPoller: nextDesc = a4, descFlags = 1f01 pethPoller: rewriting headTail: a400a0 pethPoller: unlocked queue pethPoller: ingressPort = 0 unit: 0 pethRecv: descriptor = 0xc4 pethRecv: descFlags = 1f01, len = 32 ff ff ff ff 98 75 0b c0 08 00 06 04 98 75 0b c0 00 00 00 00 01 05 5f 7f 09 00 08 09 0e 0f 10 11 16 17 18 19 1e 1f 20 21 pethFreeDescriptor: descriptor = c4 pethFreeDescriptor: descriptor = c4 ... But I am expecting the data to be something like: 00 00 ca fe ba be 00 e0 98 75 0b c0 08 00 45 00 00 54 00 00 40 00 40 01 36 a0 01 02 01 01 01 02 01 05 08 00 50 b0 d9 41 ... Thanks, Charles

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motivation
by Najati Imam 20 Jul '02

20 Jul '02

The reason for my last question is that I want to run and test some microcode on the ixp1200 without the rest of the ACE environment. I would also like to have the option of not using ACEs when our code is ready to be put on the IXP1200. To do so I need to get a .uof running on the microengine. Ideally, I'll write and debug in the workbench, then when it comes time to deploy I take the .uof's I got from the workbench and start them with the code I'm trying to write now. Is this direct/ACEless approach possible? Najati

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RE: [ixp1200] IXP1200 Resource Manager Question
by Schuetze, Joel D 19 Jul '02

19 Jul '02

What are your questions? -----Original Message----- From: Najati Imam [mailto:najati@netlab.uky.edu] Sent: Friday, July 19, 2002 10:23 AM To: ixp1200(a)CS.Princeton.EDU Subject: [ixp1200] IXP1200 Resource Manager Question I'm working with the IXP1200 at the University of Kentucky's Laboratory for Advanced Networking and have a few questions about using the Resource Manager library calls that I can't seem to work out myself and that the documentation fails to address. Would it be appropriate and permissible for me to post my questions here? Thanks, Najati Imam

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IXP1200 Resource Manager Question
by Najati Imam 19 Jul '02

19 Jul '02

I'm working with the IXP1200 at the University of Kentucky's Laboratory for Advanced Networking and have a few questions about using the Resource Manager library calls that I can't seem to work out myself and that the documentation fails to address. Would it be appropriate and permissible for me to post my questions here? Thanks, Najati Imam

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rebooting the enp-2505
by Tommy Tran 19 Jul '02

19 Jul '02

Hi everyone, I'm wondering if there is any safe way to reboot the board w/o rebooting the host system? I have the board installed in Linux and hated to reboot it just to rebooot the enp board. Thanks.

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Problem of linux on ixp1200
by Fei Chen 18 Jul '02

18 Jul '02

Hi, I'm a new comer of ixp1200. I'm trying to run microengine examples on ixp1200 ethernet evaluation board. I have made linux running on the board with the image from: http://server2024.virtualave.net/soothsayer/ramdisk_img.gz, but when I mounted up the nfs directory from the linux pc, and ran the command: ./ixstart ixsys_count_8_1.config, I got the error message: /lib/modules/ixasl.o: unresolved symbol get_virtual_mem_map ... I can not even manually insmod the module ixasl.o due to the same reason. Can anyone give me some suggestion on this? Do I need to download better "ixasl.o"? OK, thanks! Fei -- --------------------------------------------------------- - Fei Chen - - Computer Architecture & Parallel System Lab - - Department of Electrical & Computer Engineering - - University of Delaware - --------------------------------------------------------- - In theory there is no difference between theory and - - practice. In practice there is. - - Unknown - ---------------------------------------------------------

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RE: [ixp1200] Problem of linux on ixp1200
by Brandewie, Dirk J 17 Jul '02

17 Jul '02

You can use the developers workbench to develop your microcode. You can't you the infrastructure to support MicroAces from SDK 2.0. --Dirk -----Original Message----- From: Fei Chen [mailto:fchen@capsl.udel.edu] Sent: Wednesday, July 17, 2002 10:53 AM To: ixp1200(a)CS.Princeton.EDU Subject: RE: [ixp1200] Problem of linux on ixp1200 Hi, Dirk, Thank you very much for your help. My another question is if I use the system from princeton or columbia without sdk2.0 , how can I develpe microengine code? Fei -- --------------------------------------------------------- - Fei Chen - - Computer Architecture & Parallel System Lab - - Department of Electrical & Computer Engineering - - University of Delaware - --------------------------------------------------------- - In theory there is no difference between theory and - - practice. In practice there is. - - Unknown - ---------------------------------------------------------

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RE: [ixp1200] Problem of linux on ixp1200
by Brandewie, Dirk J 17 Jul '02

17 Jul '02

The kernel that you have does not support SDK 2.0. The ethernet evaluation system is not supported by SDK 2.0. The ethernet eval system is supported by SDK 1.3. There are two free systems you might want to consider using that support the ethernet eval systems. http://www.cs.princeton.edu/nsg/vera/ http://comet.columbia.edu/genesis/netbind/ --Dirk -----Original Message----- From: Fei Chen [mailto:fchen@capsl.udel.edu] Sent: Wednesday, July 17, 2002 7:21 AM To: ixp1200(a)CS.Princeton.EDU; linux-arm-admin(a)lists.arm.linux.org.uk Subject: [ixp1200] Problem of linux on ixp1200 Hi, I'm a new comer of ixp1200. I'm trying to run microengine examples on ixp1200 ethernet evaluation board. I have made linux running on the board with the image from: http://server2024.virtualave.net/soothsayer/ramdisk_img.gz, but when I mounted up the nfs directory from the linux pc, and ran the command: ./ixstart ixsys_count_8_1.config, I got the error message: /lib/modules/ixasl.o: unresolved symbol get_virtual_mem_map ... I can not even manually insmod the module ixasl.o due to the same reason. Can anyone give me some suggestion on this? Do I need to download better "ixasl.o"? OK, thanks! Fei -- --------------------------------------------------------- - Fei Chen - - Computer Architecture & Parallel System Lab - - Department of Electrical & Computer Engineering - - University of Delaware - --------------------------------------------------------- - In theory there is no difference between theory and - - practice. In practice there is. - - Unknown - ---------------------------------------------------------

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RE:
by Johnson, Erik J 16 Jul '02

16 Jul '02

The large size is most likely due to the inclusion of debugging information (the -g option). Of course the uof file format will have some overhead for magic numbers and headers, even without debugging information, but most of the extra space comes from the symbols (i.e., strings) included for debugging. I am not a uof file expert, but this is my best guess. Both the assembler and compiler indicate how many instructions were generated with a line like the following: Number of uwords compiled: 620 erik -----Original Message----- From: ravi modgekar [mailto:ravilm@yahoo.com] Sent: Tuesday, July 16, 2002 7:15 AM To: ixp mailing list Subject: Hi, Sorry this question is not related to VERA ,but I thought I could get my answer here. When I compile any of the INTELS SDK 2.01 reference projects ,then the size of the final .uof file is more than the capacity of the control store of the 6 microengines For eg:For the L3Fwd16 reference project the final uof file size is 346KB.Now my questions are 1)How does this 346KB uof file gets loaded into 2kB of control store on all microengines. 2)How do I know when my uof file will exceed the 2kB limit of the control store. 3)Does the Linker throw any exception. Any INTEL guys out there please help me out. Thanks Ravi __________________________________________________ Do You Yahoo!? Yahoo! Autos - Get free new car price quotes http://autos.yahoo.com

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