October 2003 - ixp1200 - lists.cs.princeton.edu

who ixp1200.
by Raghunandan, Makaram 23 Oct '03

23 Oct '03

who ixp1200

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Re: [ixp1200] Accessing logical interface information.
by Shyamal Pandya 23 Oct '03

23 Oct '03

>1. Is it possible to get the interface configuration from microcode, >such as the ip address given in the ixsys.config? You could share the ip adress or other info between the strongarm and microengines through scratchpad memory. >2. In the StrongARM code, do I have to use crosscalls to get this >information from the ingressACE, or is there another way? If no other >way, is there an example I could look at on how to use the crosscall? you might look up the ixsys.config file from the strongarm code, but it is probably better to use crosscalls. Don't know about examples, but the SDK reference docs will help. _________________________________________________________________ Concerned that messages may bounce because your Hotmail account has exceeded its 2MB storage limit? Get Hotmail Extra Storage! http://join.msn.com/?PAGE=features/es

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ME-ME Ring
by Christopher S Hall 23 Oct '03

23 Oct '03

I'm trying to write code that passes packets between microengines hopefully using ucode macros provided by the SDK. Right now, I have the Ingress ace running on ME's 0 and 1 (1 Gigabit port), Intermediate processing code on ME's 2, 3, 4, and the Egress ace running on ME 5. I need to pass packets from ME's 0,1 to ME's 2,3,4 (The egress side isn't to important right now). The DL_MESink macro seems to queue the packets up, but I'm unsure how to dequeue the packets at the other end. Can the ME-ME rings provided by the SDK be used for this, and, if so, how are packets dequeued? Thanks, Chris

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RE: [ixp1200] Accessing logical interface information.
by Botham, Mick 23 Oct '03

23 Oct '03

Øyvind, I was referring to the IXF440 manual, this is a promiscuous MAC, the ethernet MAC address is only used for flow control, not to filter packet reception. Rgds -----Original Message----- From: owner-ixp1200(a)CS.Princeton.EDU [mailto:owner-ixp1200@CS.Princeton.EDU] On Behalf Of Øyvind Hvamstad Sent: 21 October 2003 15:24 To: ixp1200(a)CS.Princeton.EDU Subject: [ixp1200] Accessing logical interface information. Hi, I'm using the ENP-2505 1. Is it possible to get the interface configuration from microcode, such as the ip address given in the ixsys.config? 2. In the StrongARM code, do I have to use crosscalls to get this information from the ingressACE, or is there another way? If no other way, is there an example I could look at on how to use the crosscall? 3. I saw in an ealier post, that the mac addr was in the Physical Address Register, I'm unable to find this in my manuals. Could someone guide me there? -- Øyvind Hvamstad <oyvindh(a)ifi.uio.no>

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IXP1200 with Radisys ENP2505
by Edson Barbosa Lisboa 22 Oct '03

22 Oct '03

Hello, I want to connect 2 machines, one with windows2000 and other with Redhat linux 7.3, to the Radidsys ENP2505 board with IXP1200 that it is installed in other machine. The Source machine (windows2000) has the 10.1.0.100 IP address and it is connected in the port1 of the ENP 2505 with 10.1.0.1 IP. The Sink machine (Linux) has the 10.2.0.100 IP and it is connected in the port2 with 10.2.0.1 IP address. I am using L3forward library ACE. However, when I run ping from source machine to sink machine I do not get response. The host is unreachable. Can you help me please ? Best Regards, Edson Barbosa

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How do ME-ME rings work?
by Christopher Hall 21 Oct '03

21 Oct '03

I currently have code loaded and running on the IXP1200 as follows: ME 0-1 are running the FastIngress code (1 gigabit port), ME 2-3-4 are running processing code (packet counting of various sorts), ME 5 is running FastEgress code. Now, I need to be able to send packets from one microengine to another preferably without involving the StrongARM. I'm thinking that the ME-ME ring may provide me with what I need, but I can't see how packets are enqueued and dequeued. The DL_MESink macro seems to enqueue a packet, but there is no corresponding code to dequeue a packet. My understanding so far is that the packet is dequeued by the egress code. Can the ME-ME ring(s) be used (adapted) for passing packets between microengines, or do I need to write my own queue/dequeue code? Thanks, Chris

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Accessing logical interface information.
by Øyvind Hvamstad 21 Oct '03

21 Oct '03

Hi, I'm using the ENP-2505 1. Is it possible to get the interface configuration from microcode, such as the ip address given in the ixsys.config? 2. In the StrongARM code, do I have to use crosscalls to get this information from the ingressACE, or is there another way? If no other way, is there an example I could look at on how to use the crosscall? 3. I saw in an ealier post, that the mac addr was in the Physical Address Register, I'm unable to find this in my manuals. Could someone guide me there? -- Øyvind Hvamstad <oyvindh(a)ifi.uio.no>

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Microcode loading problem.
by 조준우 20 Oct '03

20 Oct '03

I am analyzing Vera source code. But I am blocked at source code of loading the microcode part. Below code is presented at /Vera/IXP1200_Apps/IPmm/main.c Control_BootUEs(&rcv_uCode, &xmt_uCode); But I can't find rcv_uCode, xmt_uCode uEng_uCodeInfo structure variable. From where that varible is declared? I guess that this is related with 'Vera/bin/postuca.pl' file. If above guess is right, plz say loading mechanism simply. if above guess is wrong, plz say exact location. Thanks.

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IXP1200 sending out a flood of packets on port 3
by Christopher George Baron 20 Oct '03

20 Oct '03

After booting up embedded linux on the StrongARM, and assigning MAC addresses to ports 0 through 3, a flood of packets is being sent out of port 3 of the IXP1200. No microengines are doing any processing. I am wondering if anyone else had this problem, or an idea of what it might be. Thanks, Chris

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RE: [ixp1200] How do I get IXP EB's ethernet address?
by Botham, Mick 16 Oct '03

16 Oct '03

It's in the Physical Address Register - see section 3.2.4.3 of the datasheet. -----Original Message----- From: owner-ixp1200(a)CS.Princeton.EDU [mailto:owner-ixp1200@CS.Princeton.EDU] On Behalf Of jwc(a)core.kaist.ac.kr Sent: 16 October 2003 06:03 To: ixp1200(a)CS.Princeton.EDU Subject: [ixp1200] How do I get IXP EB's ethernet address? Hello. I use IXP1200 Evaluation board. I want to know ethrenet(MAC) address of port0. How do I get that ethernet address? Thanks.

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