- ixp1200 - lists.cs.princeton.edu

How to generate asm code from SDK
by Yan Luo 12 Jan '03

12 Jan '03

HI, I try to generate the assembly code from Micro C code using SDK 2.0, In the Build->setting, I check the "Produce assembly code file". When I compile , I got the following warning: (0): warning : IPO enabled; -Fa and -FA produce dummy .asm files It seems it did not produce asm file, and I cannot find asm file anywhere. How can I get the assembly code? Thanks, Yan

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RE: [ixp1200] problems when assembling micro code
by Harikishan V 11 Jan '03

11 Jan '03

I think you have to use the '.segment 1' statement in the microcode and keep the code that exceeds 1024 microwords. You can get the details on how to use this in section 2.5.17 of Microcode Programmers Reference Mannual. regards Hari -----Original Message----- From: Gregory Prier [mailto:greg@Lever.cs.ucla.edu] Sent: Saturday, January 11, 2003 4:52 AM To: ixp mailing list Subject: [ixp1200] problems when assembling micro code I have a relatively large micro code program that I am trying to assemble. I get these error messages: (17009): error : The numeric address value 1035 in field "branch_field" is too large to be represented in field. F:\src\dward\interface_ace\include\SlowIngress_h.uc(509): error : The previous error occurred while expanding macro. This repeats 4 times, and then: (0): error : Page, common_code, exceeds the 1024 address limit. (0): error : Unexpected error occurred during encoding phase. We are using an ixp1200 with a 2k instruction store. As far as we can tell our program should fit into this space. Has anyone else seen this same problem and how did they fix it? Thank you for the help. GKP ---------------------------------------------------------------------- Greg Prier Previously: A Mudder 3564 Boelter Hall Currently: A Bruin working UCLA CA 90095 toward a PhD (310) 825-8899 After that: No idea "Hell, there are no rules here. We're trying to accomplish something." Thomas Edison

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problems when assembling micro code
by Gregory Prier 10 Jan '03

10 Jan '03

I have a relatively large micro code program that I am trying to assemble. I get these error messages: (17009): error : The numeric address value 1035 in field "branch_field" is too large to be represented in field. F:\src\dward\interface_ace\include\SlowIngress_h.uc(509): error : The previous error occurred while expanding macro. This repeats 4 times, and then: (0): error : Page, common_code, exceeds the 1024 address limit. (0): error : Unexpected error occurred during encoding phase. We are using an ixp1200 with a 2k instruction store. As far as we can tell our program should fit into this space. Has anyone else seen this same problem and how did they fix it? Thank you for the help. GKP ---------------------------------------------------------------------- Greg Prier Previously: A Mudder 3564 Boelter Hall Currently: A Bruin working UCLA CA 90095 toward a PhD (310) 825-8899 After that: No idea "Hell, there are no rules here. We're trying to accomplish something." Thomas Edison

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Intel bug in ue debug code?
by Austen McDonald 06 Jan '03

06 Jan '03

Someone from Intel please answer this: Im trying to write a wrapper for the ioctl commands to mimic the kernel level API for the uDbg library. The function Im working w/ is int uDbg_SetNumUword(uDbg_Handle_T dbgH, unsigned int uEngMask, unsigned int uWordAddr, unsigned short numWords, unsigned int *uWord) Inside SA1_CoreLibs/ue/main.c where the ioctl is actually handled, we find this code: case UENG_SETNUMUWORD: { uEng_setNumUword_T d; if (copy_from_user(&d, (void *)arg, sizeof(d))) return -EFAULT; size = d.numWords * sizeof(unsigned int); buf = kmalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; if (copy_from_user(buf, (void *)d.uWord, size)) { kfree(buf); return -EFAULT; } if (uEng_setNumUword(d.uEng, d.uAddr, d.numWords, &d.uWord)) { printk("ue: UENG_SETNUMUWORD failed\n"); kfree(buf); return -EFAULT; } kfree(buf); break; } and SA1_CoreLibs/debug_1200/debug_1200.hxx defines Debug_SetNumUword_T to be typedef struct Debug_SetNumUword_S{ unsigned int uEngMask; unsigned int uWordAddr; unsigned short numWords; unsigned int uWord; } Debug_SetNumUword_T; But this cant be right---isnt the purpose of buf to copy the data from the POINTER uWord (whereas now its not a pointer, its just and int) AND shouldn't buf be passed to uEng_setNumUword instead of &d.uWord inside the case statement? Let me know if Im an idiot or if this has been fixed in a newer version... Austen McDonald austen(a)cc.gatech.edu God does not care about our mathematical difficulties. He integrates empirically. -- Albert Einstein

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L2L3NAT_8_1Gig_hw memory initialization location
by Eng Kean 03 Jan '03

03 Jan '03

anybody know which SRAM, SDRAM, and Scratchpad memory location should be initialized before running simulation? so that a script to initialize that specific memory location. thanks. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

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minimal starting code
by Najati Imam 30 Dec '02

30 Dec '02

I'm trying to get around using ixstart and ixstop and do port/uengine initialization manually. My motivation for doing so is to avoid having to use ixsys.config's ambiguous initialization directives and have a bit better control over which engines get which uof and get a better grasp on which me-to-me rings I can use, how I initialize/allocate them. I figured dredging through ixconfig's source code would be the best place to start but its covered in crosscalls and I really don't want to deal with all that. Is there no simple function call to say "give port 0 mac address ..." or "put port 0 in promiscious mode" and the many other things that need to be done to get a port ready for a ueng to use it. I'd also like to use the supplied ingress microcode, slightly modified, without the provided core component but will need to discover what values to patch the .import_vars to from the ingress code. I've looked through that a little today and it seems to be about as friendly as dealing with crosscalls. If anyone has either done this or has some leads that would make my doing it easier either would be appreciated. thanks, Najati ___________________________________________________________ /Najati Imam . najati(a)netlab.uky.edu . "Don't Ever Give Up"\ \Laboratory for Advanced Networking . University of Kentucky/

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L2L3NAT_8_1Gig_hw cannot be run
by Eng Kean 23 Dec '02

23 Dec '02

hi, Does anyone try to run simulation of L2L3NAT_8_1Gig_hw project provided by SDK2.01 vol.II? I found that when running this project under simulation mode, SDRAM initialization error will occur. Can anybody suggest solution for this? Thanks. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

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uDbg Library Wrappers for linux...
by Austen McDonald 21 Dec '02

21 Dec '02

Ive looked but I can't find wrappers for the uDbg calls into the ue driver---i.e., I can't find a file akin to SA1_CoreLibs/uelib/ueng_lib.c that wraps the ioctl's responsible for the uEng library calls. Does a similar file for the uDbg calls not exist? (Im implementing an interactive debugger that's why Im asking). Austen McDonald austen(a)cc.gatech.edu God does not care about our mathematical difficulties. He integrates empirically. -- Albert Einstein

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Problem running IXP1200 VERA apps
by Magesh Kannan 20 Dec '02

20 Dec '02

Hi, Thanks to some help from this group, I managed to build the IXP1200 applications for Vera. I also built and ran the Hello World test program. Now I have a problem running the IPmm and PktGen applications. When I invoke 'sgo ipmm.srec', the output on the board's serial port stops abruptly. Here is the output. =============================== Jumping to: 0xC1002000 bss_start = 0xC10121A8 bss_end = 0xC1012A40 (length) = 0x00000898 Sbrk_heap_ptr_ = 0xC1013000 Sbrk_heap_end_ = 0xC1CF8000 (length) = 0x00CE5000 (13204 Kbytes) Enabling MMU MMU enabled Calling sram_init() Calling scratch_init() Calling PCI_mapout_init() PCI_mapout_init: PCI_dram_siz = 0x02000000 PCI_mapout_init: PCI_dram_bar = 0xF6000000 Calling my_main() Starting uEngines and control program. --- Control_SystemStart --- Contr ========================== This happens irrespective of if I build the microcode with or without VRP. The LED displays 0x25. The same happens with the application PktGen. What have I done wrong here? Thanks, Magesh

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rtm trie structure!
by adarsh daheriya 17 Dec '02

17 Dec '02

hi! can anybody please tell me which variation of trie structure is implemented in the rtm (Route Table Manager) application used with the L3fwd codes shipped with the 'ixp1200 sdk 2.01'. regards, -Adarsh.

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Re: [ixp1200] rs_udebug fails
by Shyamal Pandya 15 Dec '02

15 Dec '02

However, it still times out after a while and exits. Cannot register service: RPC: Timed out unable to register (SA1200TARGET, SA1200VERSION, udp). [1]+ Exit 1 ./rs_udebug I don't have a clue what to do... -- Shyamal Pandya Cogito, ergo sum! Addr: 920 S Terrace Rd #102 Tempe AZ 85281 Phone: 1-480-96601982 >From: "Shyamal Pandya" <shyamalpandya(a)hotmail.com> >Reply-To: ixp1200(a)CS.Princeton.EDU >To: ixp1200(a)CS.Princeton.EDU >Subject: Re: [ixp1200] rs_udebug fails >Date: Sun, 15 Dec 2002 04:34:51 -0700 > >Ashish, >Thanks! >lo was not properly configured. > > > >-- >Shyamal Pandya > >Cogito, ergo sum! > >Addr: >920 S Terrace Rd #102 >Tempe AZ 85281 >Phone: >1-480-96601982 > > > > > >>From: Rayashish(a)aol.com >>Reply-To: ixp1200(a)CS.Princeton.EDU >>To: ixp1200(a)CS.Princeton.EDU >>Subject: Re: [ixp1200] rs_udebug fails >>Date: Fri, 13 Dec 2002 13:10:43 EST >> >>Shyamal, >> >>fiirst configure the ethernet and loopback interfaces and then run >>rs_udebug. >> >>--Ashish >>Dept. of Computer Engineering >>San Jose State University >>San Jose, CA >> >> >>In a message dated 12/13/2002 4:35:40 AM Pacific Standard Time, >>shyamalpandya(a)hotmail.com writes: >> >> >> > When I try running rs_udebug on an ENP-2505 board, it fails >> > with the following error: >> > >> > Device lo is down. >> > Device lo is down. >> > Cannot register service: RPC: Unable to send; errno = No buffer space >> > available >> > unable to register (SA1200TARGET, SA1200VERSION, udp). >> > >> > >> > The ue.o, pciDg-arm.o and pciDgNet-arm.o modules are loaded. >> > >> > >> > >> > > >_________________________________________________________________ >Add photos to your e-mail with MSN 8. Get 2 months FREE*. >http://join.msn.com/?page=features/featuredemail _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail

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Re: [ixp1200] rs_udebug fails
by Shyamal Pandya 15 Dec '02

15 Dec '02

Ashish, Thanks! lo was not properly configured. -- Shyamal Pandya Cogito, ergo sum! Addr: 920 S Terrace Rd #102 Tempe AZ 85281 Phone: 1-480-96601982 >From: Rayashish(a)aol.com >Reply-To: ixp1200(a)CS.Princeton.EDU >To: ixp1200(a)CS.Princeton.EDU >Subject: Re: [ixp1200] rs_udebug fails >Date: Fri, 13 Dec 2002 13:10:43 EST > >Shyamal, > >fiirst configure the ethernet and loopback interfaces and then run >rs_udebug. > >--Ashish >Dept. of Computer Engineering >San Jose State University >San Jose, CA > > >In a message dated 12/13/2002 4:35:40 AM Pacific Standard Time, >shyamalpandya(a)hotmail.com writes: > > > > When I try running rs_udebug on an ENP-2505 board, it fails > > with the following error: > > > > Device lo is down. > > Device lo is down. > > Cannot register service: RPC: Unable to send; errno = No buffer space > > available > > unable to register (SA1200TARGET, SA1200VERSION, udp). > > > > > > The ue.o, pciDg-arm.o and pciDgNet-arm.o modules are loaded. > > > > > > > _________________________________________________________________ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail

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Re: [ixp1200] rs_udebug fails
by Rayashish＠aol.com 13 Dec '02

13 Dec '02

Shyamal, fiirst configure the ethernet and loopback interfaces and then run rs_udebug. --Ashish Dept. of Computer Engineering San Jose State University San Jose, CA In a message dated 12/13/2002 4:35:40 AM Pacific Standard Time, shyamalpandya(a)hotmail.com writes: > When I try running rs_udebug on an ENP-2505 board, it fails > with the following error: > > Device lo is down. > Device lo is down. > Cannot register service: RPC: Unable to send; errno = No buffer space > available > unable to register (SA1200TARGET, SA1200VERSION, udp). > > > The ue.o, pciDg-arm.o and pciDgNet-arm.o modules are loaded. > > >

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rs_udebug fails
by Shyamal Pandya 13 Dec '02

13 Dec '02

When I try running rs_udebug on an ENP-2505 board, it fails with the following error: Device lo is down. Device lo is down. Cannot register service: RPC: Unable to send; errno = No buffer space available unable to register (SA1200TARGET, SA1200VERSION, udp). The ue.o, pciDg-arm.o and pciDgNet-arm.o modules are loaded. Any tips??? -- Shyamal Pandya Addr: 920 S Terrace Rd #102 Tempe AZ 85281 Phone: 1-480-96601982 _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail

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RE: [ixp1200] Using PETH drivers with L3fwd16 on ENP-2505
by Arthur Berkovitch 12 Dec '02

12 Dec '02

pay attention to descriptor format: a PETH driver is built with RFC1812 uses a newer descriptor format but the reference design use the older packet descriptor. You need to remove -DRFC1812 from the peth/Makefile to set the PETH to older descriptor format. ... MODFLAGS = -D__KERNEL__ -DMODULE -DIOSTYLE=HARDWARE -DLINUX -DOS=UNIX \ -D__linux__ -DSPECTACLE_ISLAND -DRFC1812 ... -----Original Message----- From: Chong Poh Kit [mailto:thesoothsayer@pd.jaring.my] Sent: Wednesday, December 11, 2002 10:52 AM To: ixp1200(a)CS.Princeton.EDU Subject: [ixp1200] Using PETH drivers with L3fwd16 on ENP-2505 Hi all, I was wondering if anyone could tell me how to get the ENP-2505 to forward packets by using the peth driver and hardware debugging on the workbench and not through the MicroACE framework. After inserting the ue.o, octmac.o, giga_drv.o modules and running rs_udebug and rtmapp, I started a hardware debug session using the L3fwd16 project. I then loaded the peth driver and initialised the peth devices similar to the example in the "load" file. However, when I try to ping a computer connected to the ENP-2505 ethernet port, I get this message: Bad descriptor 0, dropping outgoing packet pethFreeDescriptor: Bad descriptor 0 I've tried defining RFC1812 in the code and also in build>settings for the project but the same problem occurs. Any help or pointers would be greatly appreciated. Thanks. Regards, P.K. Chong Multimedia University, Malaysia

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Using PETH drivers with L3fwd16 on ENP-2505
by Chong Poh Kit 11 Dec '02

11 Dec '02

Hi all, I was wondering if anyone could tell me how to get the ENP-2505 to forward packets by using the peth driver and hardware debugging on the workbench and not through the MicroACE framework. After inserting the ue.o, octmac.o, giga_drv.o modules and running rs_udebug and rtmapp, I started a hardware debug session using the L3fwd16 project. I then loaded the peth driver and initialised the peth devices similar to the example in the "load" file. However, when I try to ping a computer connected to the ENP-2505 ethernet port, I get this message: Bad descriptor 0, dropping outgoing packet pethFreeDescriptor: Bad descriptor 0 I've tried defining RFC1812 in the code and also in build>settings for the project but the same problem occurs. Any help or pointers would be greatly appreciated. Thanks. Regards, P.K. Chong Multimedia University, Malaysia

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Regarding running tcpdump in IXPENP2505 board
by NING WENG 10 Dec '02

10 Dec '02

Hi, Is there anyone who had experience to run tcpdump on IXPENP2505 board? How to install it? Thanks. -Ning

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RE: [ixp1200] Threads
by Heaton, Eric D 08 Dec '02

08 Dec '02

Shruti, Why is the thread swapped out? That is, what signal is it waiting on? That will be the first clue to understand what's going on! To find out, you need to query the CTX_X_WAKEUP_EVENTS and CTX_X_SIG_EVENTS (X = thread number) family of CSRs. And the easiest way to do that if you've got the Developer's Workbench hooked up to the hardware, then you can simply open up the "Thread Status" windown in debug mode. If not, you'll have to write some StrongARM code to query the StrongARM memory map (see Appendix C of the IXP1200 PRM - Programmer's Reference Manual) or use your favorite StrongARM debugger to do this. If I had to guess, the thread is probably swapped out waiting for a packet indicator. Perhaps you haven't setup the global CSRs of the IXP1200 to match the media buses on your hardware? What code are you running on the StrongARM? It might be easiest to simply load the precompiled VxWorks image in the IXA SDK v2.01 first to get the hang to using the hardware before you try other configurations (ie. like the Linux code out there or something homegrown!). Good luck! --eric h. -----Original Message----- From: Shruti Gorappa [mailto:goraps@rpi.edu] Sent: Tuesday, November 26, 2002 8:05 PM To: ixp1200(a)CS.Princeton.EDU Subject: [ixp1200] Threads Hi I am using the IXP1200 Eval platform to run a routing and forwarding program. One of the threads simply forward packets and the other sends out generated packets. When I run the code on the hardware, I notice that the first thread gets swapped out and does not run. I also ran the l3fwd_16_RFC1812 example code on the hardware and noticed that the thread is swapped out in that too. The programs run great when I use the simulator and I am not able to find out what is different on the hardware. Could somebody help me out here? Thanks in advance. Shruti

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compiler error "__mul_32 not found"
by Yan Luo 08 Dec '02

08 Dec '02

Hi, I got this compilation error in SDK 2.0 : (0): error : Function __mul_32 not found I use hash_48() in my micro C code. The parameters of hash_48 are sram xfer registers. And I declared and used other sram xfer registers too. Is the error because of running out of sram xfer registers ? Thanks, -- Luo, Yan yluo(a)cs.ucr.edu Dept. of CS, Univ. of California Riverside, CA 92507, USA http://www.cs.ucr.edu/~yluo

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Intel IXA University Program Student Design Competition
by Schuetze, Joel D 06 Dec '02

06 Dec '02

Greetings, We are pleased to announce the Intel IXA University Program Student Design Competition. The Intel IXA University Program Student Design competition will allow undergraduate and graduate university students from U.S. Universities to present innovative work based on the Intel® IXA architecture, specifically the IXP family of network processors. There will be a web-based application process available through the IXAEDU.com website and all entries will be reviewed by an Intel panel of experts. Six (6) qualified selected entries will be awarded grants for the proposed projects. After the selected projects have been completed and submitted for judging, the top two (2) projects will be selected to receive an award presented at the Fall 2003 Intel Developer Forum (IDF). For complete information please visit http://ixaedu.com/news/DesignCompetition. Joel Schuetze IXA University Program Intel Corporation

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Patch for SDK 2.0 to use all the available memory on bridalveil
by Abhijeet Joglekar 01 Dec '02

01 Dec '02

Hi, We are using the Bridalveil board with SDK 2.0 at Utah. SDK 2.0 sets up the board to use only 128 MB of Sdram and 4 MB of sram. Since we need more memory for packet buffers and other data structures, we patched some header and source files to use all the memory on the board (256 MB of sdram and 8 MB of sram) and to increase the memory pool allocated to ASL and RM. So our modified board configuration is: Sdram (total 256 MB) --> ASL (96 MB) --> RM (32 MB) --> Linux (126 MB) --> Vmon (2 MB) (Thus linux is loaded at an offset of 128 MB from the start of Sdram) Sram (total 8 MB) --> ASL (6 MB) --> RM ( 2MB) If you want to change the default memory configuration of SDK 2.0 on bridalveil for your application, you might find these changes useful. If you want a different configuration, you can look up the patch file and make the relevant changes in your code. The changes are available at www.cs.utah.edu/~abhijeet/ixp/utah_bv.tar.gz There are three files in it: - README (which explains how to patch your current source tree, which files to back up, which modules to recompile and how to test if the patch works) - bvpatch (the patch file for setting up the board to use all memory) - autobootbv (a script for automating boot procedure of bv. This is independent of the patch above, just bundled up in the same .tar.gz file, because it might be useful to automate your card bootup.) We have done minimal testing by running both the l2bridge and l3forward designs in workbench and non-workbench mode under the modified board configuration. They seem to be working fine. Feel free to mail abhijeet(a)cs.utah.edu if you have any questions or want to report any bugs in the patch. Thanks. -- abhijeet

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Threads
by Shruti Gorappa 26 Nov '02

26 Nov '02

Hi I am using the IXP1200 Eval platform to run a routing and forwarding program. One of the threads simply forward packets and the other sends out generated packets. When I run the code on the hardware, I notice that the first thread gets swapped out and does not run. I also ran the l3fwd_16_RFC1812 example code on the hardware and noticed that the thread is swapped out in that too. The programs run great when I use the simulator and I am not able to find out what is different on the hardware. Could somebody help me out here? Thanks in advance. Shruti

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RE: [ixp1200] what is the difference between IXP1200 Revision C0 and the olders
by Ye, Irvin 25 Nov '02

25 Nov '02

Oh, thanks! As for ue, is it difficult to recompile it? Cheers. Irvin -----Original Message----- From: xtan [mailto:xtan@csnet1.cs.tsinghua.edu.cn] Sent: 25 November 2002 13:14 To: ixp1200(a)CS.Princeton.EDU Subject: RE: [ixp1200] what is the difference between IXP1200 Revision C0 and the olders Yes. The 2.4.18 kernel does exist. (You can find it at arm.linux.org.uk) But the kernel lacks of ue.o (the microengine driver due to a license problem). If someone has already ported the ue driver to 2.4.18, would u mind share the experience with us? Zhangxi Tan -----Original Message----- From: owner-ixp1200(a)CS.Princeton.EDU [mailto:owner-ixp1200@CS.Princeton. EDU] On Behalf Of Ye, Irvin Sent: Monday, November 25, 2002 7:11 PM To: 'ixp1200(a)CS.Princeton.EDU' Subject: RE: [ixp1200] what is the difference between IXP1200 Revision C0 and the olders Hi, all, Is there a 2.4.18 for ixp1200? Where can I find it? What I, and a lot of others, I think, are still using 2.3.99. Irvin -----Original Message----- From: Li Weihua [mailto:liweihua@cosix.com.cn] Sent: 25 November 2002 01:40 To: ixp1200(a)CS.Princeton.EDU Subject: [ixp1200] what is the difference between IXP1200 Revision C0 and the olders Hi, The README of "inux 2.4.18 for ixp1200" says that it can not run on silicon older then Rev C0 IXP1200. But, what is the difference between the Rev C0 and the olders? And where can I find the detailed documents about this? Thanks a lot! 　　　　　　　　Li Weihua 　　　　　　　　liweihua(a)cosix.com.cn 　　　　　　　　　　2002-11-25

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Re: RE: [ixp1200] what is the difference between IXP1200 Revision C0 and the olders
by Li Weihua 25 Nov '02

25 Nov '02

Hi,all, Thanks a lot! The board I am using is IXP12EB, and the Revision I read from PCI_REV_CLASS register is C0. But the 2.4.18 kernel failed when it came to the last step (init task). After I replace the line "...getty..." with the "...../bin/bash....." in the /etc/inittab, it is OK. I think that something goes wrong with the "getty" which is a symbol link to "/sbin/tinylogin". Thanks everyone here! Li To Irvin: I download the linux for ixp patch on: ftp://source.mvista.com/pub/ds-patches/2.4/ ======= 2002-11-25 11:28:00 您在来信中写道：======= >first question: > >what board are you running? > >IXP12EB? if its the EB (the ethernet evaluation board) these guys came >in three versions (the versions were the silicon revisions) > >if you do a self-test of the board it will (right at the top) print out >which version the silicon is. > >(from a colleague) >.... >It is possible to identify the rev of a board by knowing what labels to >expect, however the most positive way is to read the contents of the >PCI_REV_CLASS register at 0x42000008. Bits 7:0 show the revision of the >silicon; > >0 - IXP1200 A Stepping >1 - IXP1200 B Stepping >3 - IXP1200 C Stepping >5 - IXP1240 A Stepping and IXP1250 A Stepping >.... > > >The reason linux does not run is that stepping's earlier than C do not >implement the endian-agnostic byte swapping code properly which means >that linux device drivers need to be hand-ported (as is the one on >netwinder) > >solution: use a rev C stepping. > >cheers, >Andrew. > > >> -----Original Message----- >> From: owner-ixp1200(a)CS.Princeton.EDU >> [mailto:owner-ixp1200@CS.Princeton.EDU] On Behalf Of Li Weihua >> Sent: 25 November 2002 01:40 >> To: ixp1200(a)CS.Princeton.EDU >> Subject: [ixp1200] what is the difference between IXP1200 >> Revision C0 and the olders >> >> >> Hi, >> >> The README of "inux 2.4.18 for ixp1200" says that it can not >> run on silicon older then Rev C0 IXP1200. But, what is the >> difference between the Rev C0 and the olders? And where can I >> find the detailed documents about this? >> >> Thanks a lot! >> >> >> >> $B!!!!!!!!!!!!!!!!(BLi Weihua >> $B!!!!!!!!!!!!!!!!(Bliweihua(a)cosix.com.cn >> $B!!!!!!!!!!!!!!!!!!!!(B2002-11-25 >> >> >> >> > > >. = = = = = = = = = = = = = = = = = = = = 　　　　　　　　致礼！　　　　　　　　Li Weihua 　　　　　　　　liweihua(a)cosix.com.cn 　　　　　　　　　　2002-11-25

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RE: [ixp1200] what is the difference between IXP1200 Revision C0 and the olders
by Ye, Irvin 25 Nov '02

25 Nov '02

And, REV can be gotten just by a simple command: cat /proc/cpuinfo Cheers! Irvin -----Original Message----- From: Andrew Moore [mailto:Andrew.Moore@cl.cam.ac.uk] Sent: 25 November 2002 11:29 To: ixp1200(a)CS.Princeton.EDU Subject: RE: [ixp1200] what is the difference between IXP1200 Revision C0 and the olders first question: what board are you running? IXP12EB? if its the EB (the ethernet evaluation board) these guys came in three versions (the versions were the silicon revisions) if you do a self-test of the board it will (right at the top) print out which version the silicon is. (from a colleague) ... It is possible to identify the rev of a board by knowing what labels to expect, however the most positive way is to read the contents of the PCI_REV_CLASS register at 0x42000008. Bits 7:0 show the revision of the silicon; 0 - IXP1200 A Stepping 1 - IXP1200 B Stepping 3 - IXP1200 C Stepping 5 - IXP1240 A Stepping and IXP1250 A Stepping ... The reason linux does not run is that stepping's earlier than C do not implement the endian-agnostic byte swapping code properly which means that linux device drivers need to be hand-ported (as is the one on netwinder) solution: use a rev C stepping. cheers, Andrew. > -----Original Message----- > From: owner-ixp1200(a)CS.Princeton.EDU > [mailto:owner-ixp1200@CS.Princeton.EDU] On Behalf Of Li Weihua > Sent: 25 November 2002 01:40 > To: ixp1200(a)CS.Princeton.EDU > Subject: [ixp1200] what is the difference between IXP1200 > Revision C0 and the olders > > > Hi, > > The README of "inux 2.4.18 for ixp1200" says that it can not > run on silicon older then Rev C0 IXP1200. But, what is the > difference between the Rev C0 and the olders? And where can I > find the detailed documents about this? > > Thanks a lot! > > > > 　　　　　　　　Li Weihua > 　　　　　　　　liweihua(a)cosix.com.cn > 　　　　　　　　　　2002-11-25 > > > >

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