- ixp1200 - lists.cs.princeton.edu

ACE programming
by Malathi Panyam 22 Feb '05

22 Feb '05

Hi, I am a student of SJSU, CA. I will be grateful if any body can help me out. I have started my project on IXP1200, I need to build a rule based IDS on IXP1200. I need to know 1> is it only possible to compile/assemble and link using workbench for ACE programming, can we simulate the whole application on workbench without connecting to hardware? 2> I tried to do the hardware set up and I was able to mount the arm-be (*.uof) files, but when I tried to run the example ACE program using ./ixstart, it is giving the following error ixasl.o: unresolved symbol get_virtual_mem_map library aces require ixasl driver. ixasl driver does not appear to be running. ixconfig: Resource Manager intialization failed Wed Dec 31 20:01:40 1969 rmlib.c, line 80: open failed: errno 2 I tried somany ways, but could not solve it. 3> So please can anyone tell me using work bench what are the things I can do, Is it possible develop complete application for the ACE model or reference model to use with out the hardware. or any other suggestions. Thanx in advance. malathi

1 0

Simulation Error...
by nitin makhija 15 Feb '05

15 Feb '05

Hi, can anyone tell me that the LIFO used in allocating the buffer, when u need to transfer data frm RFIFO to SDRAM and the other one used for enqueuing and dequeing operationn are different or same... i'm using different LIFO's for the two operations....simulation is running fine for about 25000 machine cycles but after that it stops giving an error that an uninitilized data is read from sdram, or at times from sram.... not able to locate the error, has anyone of u faced the similar problem.... i have modified the code for chapter 9....transmit code is same.. Thanxs in advance.. regards, Nitin

1 0

Re:Simulation Problems
by Simon.O'Sullivan 14 Feb '05

14 Feb '05

Hello all, I'm new to IXP1200 and am having problems simulating the program used in chapter 5 of "IXP1200 Programming".I don't have the CD containing the project but I downloaded the source files from Internet(so have to manually set project settings in SDK which is probably the problem!!).In simulation the IXP fails to receive any packets at all with the Rx buffer filling up and the receive rate gradually decreasing to 0 Mbps.Here are the project settings: Ready Bus Sequencer Program: Rxrdy Mac 0, Txrdy Mac 0, NOP1, NOP1, NOP1, NOP1, NOP1, NOP1, NOP1, NOP1, NOP1, NOP1. Data Stream: 100 frames of length 38 of Ethernet IP assigned to Device 0 Port 0. IX Device Bus Simulator is enabled. Device is set to automatically receive packets on first clock cycle. What am I doing wrong?? Regards, Simon O'Sullivan.

2 2

Re: Error: rpccore backend client Timed out (mahin jeyachandran)
by Ricardo Camarena Ramos 11 Feb '05

11 Feb '05

Hi Mahin: Ok. I don't understand very well which is your testing architecture, but if you are using the ENP2505 board you maybe have some like mine. Because I haven't heard about ENP2505 with Tornado....maybe I'm wrong. My configuration is a Linux host which runs virtually a Windows 2000 in the same machine to run the Workbench and the ENP2505 board running Linux too. All of them installed in the same computer. If that is you configuration then I assume you have already installed VMWARE and can ping bw Windows and Linux Host. This is the first thing to do. To change the IP address you simply change them on the create_environment.rc. located on the same directory where bootixp is. Although there is no need to do this change.

2 1

Error: rpccore backend client Timed out
by mahin jeyachandran 08 Feb '05

08 Feb '05

Hi, I am new to VxWorks and Tornado.. I am using tornado2.2.1.. I started to tools--> target server --> configure I set in "Back End" as wdbserial and "Core files and symbols" as File --> C:\Tornado2.2\target\config\ixp1200eb\vxWorks.sym when I click Launch I the following tgtsvr (TestTarget@HostMachine): Fri Feb 04 16:40:27 2005 Checking License ...OK Connecting to target agent... succeeded. Attaching C++ interface... succeeded. Attaching elf OMF reader for ARM CPU family... succeeded. Error: rpccore backend client Timed out Can someone familiar with this error help me with this... I need to know why I get the error "Error: rpccore backend client Timed out" Thanks a lot. Mahin.

3 4

Timestamps in Microengine C
by tabrez rajani 07 Feb '05

07 Feb '05

Hello Everybody, Can anybody tell me how to find the packet receipt rate using microengine C.Basically I need to know if there are any time related functions (such as gettimeofday) etc that I can use in order to find the rate at which the processor is receiving packets.Also i need to record the timestamp for the latest packet from a particular IP address. Any feedback will be appreciated. Thanks, Tabrez. __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail

2 2

Simulation Error
by tabrez rajani 31 Jan '05

31 Jan '05

Hello Everybody, I am using the code (in MicroEngine C) for packet reception. ME-0 is used solely for receiving the packets and then enqueing them to the queue. Now I am using ME-1 for some packet processing and then it enqueues this packet again in another queue from which ME-5 reads and transmits the packets. However , in my code for ME-1 whenever I try to access any memory ,(scratch,sram or even local variables for that matter) I get a simulation error. For example I am using the function ixp_cycle_read(); If I comment this out , the simulator works.The error that I get is as follows : ***** %E-ERROR at fbox cycle 545 in simulation ---------- (NOTE: Execution will stop ASAP due to error.): Memory address, 007F8000, is out of bounds of "sdram" array. ***** %W-WARNING: Read of array, "sdram" at address: 007F8000 returns uninitialized data. Simulation prematurely stopped due to error condition. I do not understand why this shows up.I am not accessing the sdram at alll,except for enqueing the packets and dequeing them.At no point am I trying to access SDRAM memory at 007F8000. Do I have to change the build setting or something in order for me to be able to access memory even from the 2nd or 3rd microengines.Are there some memory configurations that I have to change? I'd really appreciate it if somebody can let me know what I am doing wrong. Regards, Tabrez. __________________________________ Do you Yahoo!? All your favorites on one personal page � Try My Yahoo! http://my.yahoo.com

1 0

Re: [ixp1200] Core programming...
by nitin makhija 27 Jan '05

27 Jan '05

Hi, i' ve read the source, destination IP and source, destination Port frm the incoming packets....haven't tried to read the protocol field...wht exact problem u r facing just let me know tht. becoz as far as i guessed to won't make any difference to fetch any of teh hearder field.... u just look at the bridging example code where they have extracted MAC addresses....it wd. b same.. and currently i'm facing problem to get any info. regarding core processor prog.; if u have any hint do let me know... regards, Nitin On Wed, 26 Jan 2005 tabrez rajani wrote : >Hi Nitin, > >I know that u r trying to implement a firewall so I >guess u r the best person to ask this ? to. How have u >gotten around reading the headers and classifying them > accordingly. I know that we have the 8 bit L3-proto >after the L2-Source Address. >However I have been unable to read the proto byte >successfully. >I will really appreciate it if you could gimme some >pointers on this. > >Regards, >Tabrez > > > > >__________________________________ >Do you Yahoo!? >Yahoo! Mail - Helps protect you from nasty viruses. >http://promotions.yahoo.com/new_mail >_______________________________________________ >ixp1200 mailing list >ixp1200(a)lists.cs.princeton.edu >https://lists.cs.princeton.edu/mailman/listinfo/ixp1200

1 0

Compuler Error (__mul_ not found)
by tabrez rajani 27 Jan '05

27 Jan '05

Hello Everybody, Firstly I would like to apologize for one too many questions that I have already asked.I have a deadline coming up, hence ... I have a function in which I am using the hash_48 unit.A snippet of my code is : hashInputTmp.hash_lo32 = ip_32; // This is an IP address hashInputTmp.hash_hi16 = ip_32 >> 16; // This is just a filler and the values does not really matter hashInput = hashInputTmp; However I get a compilation error for the following 3 lines of code : hash_48(&hashInput, &hashOutput, 1, ctx_swap); hashIndex = hashOutput.hash_lo32 & 0xff; tableEntry = &(hashTableIP[hashIndex]); (I have followed the same model as in Chapter 8/9) for the hash. Here if I comment out any of the above 3 lines , the compilation error goes away. The error that I get is : (0): error : Function __mul_32 not found I dont see any multiplication here , so I really cant figure out what the problem is. Looking forward to some feedback. Regards, Tabrez __________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com

1 0

Core programming...
by tabrez rajani 26 Jan '05

26 Jan '05

Hi Nitin, I know that u r trying to implement a firewall so I guess u r the best person to ask this ? to. How have u gotten around reading the headers and classifying them accordingly. I know that we have the 8 bit L3-proto after the L2-Source Address. However I have been unable to read the proto byte successfully. I will really appreciate it if you could gimme some pointers on this. Regards, Tabrez __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail

1 0