- ixp1200 - lists.cs.princeton.edu

microengine execution percentage
by Shweta Rao 08 Dec '04

08 Dec '04

Hi, I am using chapter 9 code for receive which runs on two microengines in my project.The execution statistics show that microengine 0 all four threads are underutilized with execution time 0.1% and with thread 0 0.1 % abort time.while microengine 1 threads show a good percentage. Can anyone explain why this happens.below is the switch statement used in the textbook code switch(thread_id()) { case 0: next_thread = 4; break; case 1: next_thread = 5; break; case 2: next_thread = 6; break; case 3: next_thread = 7; break; case 4: next_thread = 1; break; case 5: next_thread = 2; break; case 6: next_thread = 3; break; case 7: next_thread = 0; break; Thanks, shweta

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urgent!!!!!!!!!!
by Shweta Rao 06 Dec '04

06 Dec '04

Hi, can anyone tell how i can reserve a block of sram . i tried changing linker settings.i am writing data from a script to address location 0x0:0x700 in sram .i set the sram base address to 0x700 but the ixp overwrites data while processing.Is there another way.please help!!!!!!!!!!!!!!!!! Thanks, shweta

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regarding Hardware
by nitin makhija 06 Dec '04

06 Dec '04

Hellow, Do anyone of u have run ur application on the hardware, i mean on IXP1200...apart frm the workbench...and if so then can u give me some points to how to start wd. it, i've somehow completely the data plane portion of my aaplication i.e. micro-Engine programming but tht. too is restricted only to simulation on workbench..., i wanna learn SrtongARM programming, interaction between strongARM, Micr-engine and Host Processor... or anyone can tell me commnds of VxWorks, i.e. tornado which cd. b helpful even any small hint,links,.doc can b really helpful.... regards, Nitin Makhija M.Tech(CS) IIT-Kharagpur

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Urgent!!!need help !!workbench custom datastreams
by Shweta Rao 28 Nov '04

28 Nov '04

Hi, I stll have a problem with the datastreams. I hope someone can help me. I need a packet with custom data .for ex.SOAP data in the payload. I have captured a soap packet and the total framesize is 1134 with actual tcp payload 1079 .I changed the stream file in textpad mode to include this data but only 1058 bytes are correctly shown in the workbench datastream window ,the rest 21 bytes are again a repeat from the start. I again changed the 21 bytes manually in the workbench datastream window.The project acknowledges these changes and runs properly but the changes in the stream do not get saved and the next time i start the project ,the stream is again loaded with the wrong 21 bytes. The content of the payload is very important for my project. Thanks, Shweta

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Pseudo Ethernet Driver doc or advice
by Ricardo Camarena Ramos 26 Nov '04

26 Nov '04

Currently we are trying to make the PETH driver work. We are using the "IXP1200 Pseudo Ethernet Driver for Linux" guide that came with the SDK. However the Section 3.3 "Changes to the reference design" is missing. Does anyone has the complete document or have an idea about those changes? On step 4 indicates to compile and load the reference design We have compiled and loaded the one that comes with the SDK without the Workbench, but not sure is we need to change something because the explanation above. On the system setup, the step 3 indicates to setup a route entry to the core. I suppose I must use the route command of Linux Strong Arm. Something like route add -net...... any suggestion?? I must say our development platform is a based on the Brivadeli card which is a little bit different from the SI (only 4 FAst Ethernet ports). We have arranged configuration in some files accordingly. Up to now we are able to see the "peth devices" under the Linux (Strong ARM) and see the routing table properly. However we cannot ping from/to the NP, when pinging from the NP we got a "Bad descriptor fffffb000, dropping outgoing packet". It seems like the peth_start_xmit routine is not able to allocate a new descriptor properly. Any idea why this happens? -- Ing. Ricardo Camarena Ramos camarena(a)itesm.mx Asistente de Investigación Departamento de Ingeniería Eléctrica y Electrónica Tecnológico de Monterrey, Campus Estado de México Teléfono: (5255) 5864.5555 extensión: 3016. enlace-intercampus: 80.236.3016 http://www.itesm.mx http://webdiee.cem.itesm.mx/web2 El contenido de este mensaje de datos no se considera oferta, propuesta o acuerdo, sino hasta que sea confirmado en documento por escrito que contenga la firma autógrafa del apoderado legal del ITESM. El contenido de este mensaje de datos es confidencial y se entiende dirigido y para uso exclusivo del destinatario, por lo que no podrá distribuirse y/o difundirse por ningún medio sin la previa autorización del emisor original. Si usted no es el destinatario, se le prohíbe su utilización total o parcial para cualquier fin.

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imp!!!!!!!!
by Shweta Rao 23 Nov '04

23 Nov '04

Hello, can anyone one tell me why i am getting this error . (0): error : Function _cp_get_sram_at not found I have included string.h . do i have to include anything else. Thanks, shweta

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To simulate incoming packets.....
by nitin makhija 20 Nov '04

20 Nov '04

Hellow, can anyone tell me that is there any setting in the workbench by which i can simulate different packets (packets with different headers) on the same port....actually i wanna check a design of a firewall.....for which i need to check it with different types of packets..as only then i wd. be able to analysis the data sructure or algorithm which i have used.... so if anyone kow it....pls let me know... and another thing what changes shd. one have to make 2 MicroEngines transmit on the same port.... Thanxs in advance..... Regards, Nitin

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RE: [ixp1200] transmitted packets lose data
by Johnson, Erik J 19 Nov '04

19 Nov '04

You might check out the errata listed at: http://intel.com/intelpress/ixp1200/errata.htm Specifically, Chapter 9, Pages 167, 169, and 170. The transmit code supplied in Chapter 9 does not properly handle packets larger than 64 bytes. You must make two corrections. Lines 169 and 170 should read: port_state.current_data_ptr = (void*)((unsigned int)(port_state.current_data_ptr) + (64 / sizeof(long long))); instead of: port_state.current_data_ptr = (void*)((unsigned int)(port_state.current_data_ptr) + 64); This correction accounts for the quad-word addressing of SDRAM on the IXP1200. Add the following line after line 167: mpacket->eop = 0; This addition ensures the per-mpacket state maintained by the fill threads gets properly initialized for each new packet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Erik J. Johnson Intel Research & Development erik.j.johnson(a)intel.com NOT SPEAKING FOR INTEL ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: ixp1200-bounces(a)lists.cs.princeton.edu [mailto:ixp1200-bounces@lists.cs.princeton.edu] On Behalf Of Shweta Rao Sent: Friday, November 19, 2004 10:33 AM To: IXP1200 Developer's List Subject: [ixp1200] transmitted packets lose data Hi, in chapter 9 i increased the packet size to 1500 and also enabled the logging. while receiving the packets are intact in the log file as well as sdram but while transmitting the log files show the packets sent are very small with loss of data ie instead of 1500 bytes ,around 64 bytes or little more.Please, can anyone explain why this is happening. Thanks, shweta _______________________________________________ ixp1200 mailing list ixp1200(a)lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/ixp1200

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transmitted packets lose data
by Shweta Rao 19 Nov '04

19 Nov '04

Hi, in chapter 9 i increased the packet size to 1500 and also enabled the logging. while receiving the packets are intact in the log file as well as sdram but while transmitting the log files show the packets sent are very small with loss of data ie instead of 1500 bytes ,around 64 bytes or little more.Please, can anyone explain why this is happening. Thanks, shweta

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RE: [ixp1200] URGENT ...Help required
by Johnson, Erik J 18 Nov '04

18 Nov '04

I don't recall seeing this particular issue before. You might check the errata at this link: http://intel.com/intelpress/ixp1200/errata.htm to see whether either of the two errata listed for chapter 09 fixes your problems. erik ~~~~~~~~~~~~~~~~~~~~~~~~ Erik J. Johnson erik.j.johnson(a)intel.com Not speaking for Intel ~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: ixp1200-bounces(a)lists.cs.princeton.edu [mailto:ixp1200-bounces@lists.cs.princeton.edu] On Behalf Of nitin makhija Sent: Thursday, November 18, 2004 9:08 AM To: ixp1200(a)lists.cs.princeton.edu Subject: [ixp1200] URGENT ...Help required Hellow, can anyone send me the transmit.c of chapter09, which is working fine...facing few problems in trasmit part of my code...following problems are coming... #1 THREAD 21 is infinately looping in get_mpacket(..).. waiting for port.state to become valid...in the following loop while (!port_state.valid) { ctx_swap(); } #2 Thread 20 is continuously going in the condition where consumer == producer due to these receive code got stuck when the queue between receiver and transmitter ME becomes full......... so if anyone can find out why such a thing is happening or if anyone can send me the trasmit code which is working fine....it would be a gr8 help.....urgently required this....have to complete the module by this weekend.... Thanxs in advance... Regards, Nitin Makhija M.Tech(CS) IIT-Kharagpur _______________________________________________ ixp1200 mailing list ixp1200(a)lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/ixp1200

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