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Silicon Graphics Origin200 Technical Reference Manual

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Origin200
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IP27 PROM Technical
Reference Manual
Document Number 108-0170-001

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  • Page 1 ™ ™ Origin200 /2000 IP27 PROM Technical Reference Manual Document Number 108-0170-001...
  • Page 2 This document contains proprietary and confidential information of Silicon Graphics, Inc. The contents of this document may not be disclosed to third parties, copied, or duplicated in any form, in whole or in part, without the prior written permission of Silicon Graphics, Inc. Restricted Rights Legend...
  • Page 3 Contents Introduction....................xiii About This Document ................xiii Intended Audience ..................xiii Related Documents (Internal Access Only) ..........xiv Origin200/2000 System Overview ..............1-1 Slot Numbering ................... 1-1 1.1.1 Part Numbers................1-2 Node IDs (NASIDs) ..................1-2 1.2.1 What is a Node ID? ..............1-2 1.2.2...
  • Page 4 Power-On Diagnostics ..................3-1 Boot Status LEDs..................3-1 Reading the LEDs..................3-1 POD Mode (PROM Command Interpreter)..........3-7 3.3.1 POD Consoles................3-9 Hardware Registers .................. 3-11 Symbols ...................... 3-16 POD Mode Commands..................4-1 Conventions ....................4-1 Command Summary .................. 4-2 Command Descriptions ................4-7 4.3.1 Evaluate Expressions..............
  • Page 5 Debugging with the IP27PROM ............. 4-27 4.4.1 Reset ..................4-27 4.4.2 Non-Maskable Interrupt (NMI) ..........4-27 4.4.3 Kernel Debugging..............4-27 4.4.4 Use of the MSC ................ 4-30 4.4.5 Fast loops.................. 4-31 Memory Tests .................... 4-31 4.5.1 Bank Organization ..............4-31 4.5.2 Running the Tests ..............
  • Page 7 Examples Case-insensitive Hub Register............. 3-12 Example 3-1 Hub PI (Processor Interface) Registers..........3-12 Example 3-2 Hub MD (Memory/Directory) Registers........... 3-13 Example 3-3 Hub II (I/O) Registers................3-13 Example 3-4 Hub NI (Network Interface) Registers ..........3-14 Example 3-5 Hub CORE (Internal crossbar control) Registers......3-14 Example 3-6 Crossbow Registers (midplane) ............
  • Page 9 Figures Slot Numbering ..................1-1 Figure 1-1 MSC front panel ..................1-5 Figure 1-2 Origin2000 Hierarchical System Control..........2-2 Figure 2-1 IP27PROM Fits Into the Origin2000 System ......... 2-3 Figure 2-2 Hardware Debug Switch settings............2-9 Figure 2-3 LED Values ....................3-1 Figure 3-1 Router LEDs....................
  • Page 11 Tables Common Part Numbers ................1-2 Table 1-1 MSC Responses ................... 1-7 Table 1-2 MSC Commands ..................1-7 Table 1-3 Dip Switches 1 and 2 .................. 2-9 Table 2-1 Dip Switch 3....................2-10 Table 2-2 Dip Switches 4 and 5 ................2-10 Table 2-3 Dip Switch 6....................
  • Page 13 This document contains no proprietary information and is suitable for use by Silicon Graphics Power Customers. • Kernel developers • IP27PROM and IO6PROM engineers ™ ™ • Origin200 /2000 hardware developers • Manufacturing engineers • Field engineers with need to know xiii...
  • Page 14 Related Documents (Internal Access Only) ASD Doc Depot (Engineering Access Only) • Lego System Specification • Hub Specification • Hub Programming Manual • CrayLink Interconnect Specification Lego Firmware Module System Controller (Engineering Access Only) • Hardware Manual (PostScript) • Firmware Manual (PostScript) Multi-Module System Controller •...
  • Page 15 Vector Addressing for a more thorough treatment of Router port connectivity). IO1 through IO6 are connected directly to the Crossbows on N1 and N3, while IO7 through IO12 are connected directly to the Crossbows on N2 and N4. Figure 1-1 Slot Numbering Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 16 This is true whether talking to the node’s memory, I/O devices, Hub chip, PROM, etc. For example, one could talk to various parts of remote node 7’s address space using addresses as follows: Origin200/2000 System Overview...
  • Page 17 In general, Origin2000 software never writes to the NIC. Rather, it is programmed once by an external NIC programming device in the manufacturing plant, and subsequently reprogrammed by Manufacturing should a board be upgraded to a new revision level. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 18 DIMM slots, adding more precision to the standard directory memory. The Origin200 supports from 32 MB to 4 GB of RAM per node card and does not support premium directory memory. Banks are populated from two outermost DIMM slots (making up bank 0) to the two innermost DIMM slots (making up bank 3).
  • Page 19 A block of eight small DIP switches (called the Debug Switches) Figure 1-2 MSC front panel The MSC was at one time called the Entry Level System Controller, or ELSC. They Note: are one and the same. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 20 Each command is three letters in length. Some of them take parameters. Numeric parameters are always in hexadecimal. All commands return responses consisting of ok and possibly some hexadecimal values, or one of the three error responses shown in Table 1-2. Origin200/2000 System Overview...
  • Page 21 , according to whether the fans are currently operating at Normal or High speed. If a fan has failed on an Origin200, returns where x is a bit map of the failed fans (fan 1 = 1, fan 2 = 2, fan 3= 4). If a fan has failed...
  • Page 22 CPU 2A’s output to be shown. Displays which CPU is currently being shown, or if all CPUs are being shown. see all Causes output from all CPUs to be displayed (this is the power-up default). Origin200/2000 System Overview...
  • Page 23 , indicating whether the system is over-temperature (automatic shutdown pending), high operating temperature, or normal operating temperature, respectively. Reports the MSC firmware revision number. The following MSC commands are not documented here: get, hbt, rcf, scf, tas, and vlm. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 25 Resetting all modules or one partition – Sending an NMI to all modules in a partition • Enhanced graphical display of system activity – High resolution color display • Retrieving information about the system while it is powered down Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 26 MMSC Connectivity A typical multi-module installation consists of: • Modules containing from 1 to 4 Node cards each • One MSC per module, internally connected to each Node card • One or two modules per rack • One MMSC per rack, connected via 9600 baud serial port to both MSCs •...
  • Page 27 There are also restrictions on which versions of the IP27PROM may run with which versions of the IO6PROM, although they do not necessarily need to be synchronized on every release. Refer to the individual PROM release nodes for compatibility information. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 28 2.3.1.1 System Boot Process When the system is powered on or reset, the following processes take place. 1. Initialize CPU • Set up R10000 ™ status registers • Clear register files 2. Test CPU caches • Instruction cache • Data cache 3.
  • Page 29 Discard the Dex contents of the data cache 22. Transfer the program counter and stack to cached RAM • Runs at top speed 23. Initialize the first 32 MB of bank 0 memory for use by the PROM Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 30 24. Initialize permanent low-memory system data structures • These structures persist across the IRIX kernel • KLDIR - Indirection table for accessing all other low-memory structures • NMI - Non-maskable Interrupt vector area • KLCONFIG - System topology and configuration information 25.
  • Page 31 1- 2+ 3- 4- 5- 6- 7- 8- 9- 10- 11- 12- 13- 14- 15- = 1 device(s) Initializing devices... System Maintenance Menu 1) Start System 2) Install System Software 3) Run Diagnostics 4) Recover System 5) Enter Command Monitor Option? Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 32 Origin2000 Hardware Debug Switches are mounted on a blue block below the MSC keyswitch. The Origin200 also has Hardware Debug Switches which accessible by removing a small EMI panel cover on the top of the chassis, and are slightly different than the Origin2000...
  • Page 33 Manufacturing Runs heavy diagnostics and outputs special FRU (field replaceable unit) information. Console input and output are handled through the system controller port which must be connected to Silicon Graphics manufacturing equipment. None Performs no diagnostics and the system will boot as fast as possible. This might be used when debugging software such as kernel drivers, when there is complete confidence in the hardware.
  • Page 34 Table 2-2 Dip Switch 3 Information Level If Switch 3 is On, the PROM shows very detailed information messages during boot, interspersed with the normal boot status messages. The switch applies only to the nodes in the module on which it’s set. Table 2-3 Dip Switches 4 and 5 Boot Stop Point...
  • Page 35 If Switch 8 is On, the node that would ordinarily become the global master will become a slave, and the next CPU in line will become the global master. This switch applies only to the module on which it is set. Origin200/2000 IP27 PROM Technical Reference Manual 2-11...
  • Page 36 Table 2-7 Dip Switch 9 Override CPU Disabling If Switch 9 is On, the all CPUs that would otherwise be disabled due to the DisableA or DisableB environment variables being set (see POD mode disable command) will no longer be disabled after a reset. This is useful for getting out of the situation in which all CPUs in the system have accidentally been disabled simultaneously.
  • Page 37 Dip Switch 12 Router Oven Mode (manufacturing only) Switch 12 is a special function used by Silicon Graphics manufacturing that allows systems to boot part way even though some router(s) may have more than one express link. This is normally an invalid configuration, but is nevertheless used by Silicon Graphics to run router tests on all router ports in sparsely populated test fixtures.
  • Page 38 PROM Images Note that this section might be of interest to developers only. The IP27PROM build directory and the IRIX flash commands deal with PROM images in the promgen format. The file extension for such images is .img. Under IRIX, they reside in the directory /usr/cpu/firmware.
  • Page 39 Each node card has two side-by-side columns of 8 discreet LEDs (see Figure 3-1). The left column presents a status value from CPU (slice) A, and the right column presents a status value from CPU B. Figure 3-1 LED Values Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 40 During the boot process, the CPU changes the LEDs before each phase of initialization. If a CPU were to hang during any phase, the residual LED value would help to indicate which phase hung and perhaps pinpoint the failing component (for example, the R10000 ™...
  • Page 41 INV_IDCACHES 0x33 INV_SCACHE 0x34 WRCONFIG 0x35 RTCINIT About to initialize Hub Real Time Counter 0x36 RTCINITDONE Done initializing Hub Real Time Counter 0x37 LOCK 0x38 BARRIEROK First local barrier succeeded 0x39 LOCKOK 0x3a FPROMINIT Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 42 Progress LED Values Table 3-1 (continued) Name Phase 0x3b FPROMINITDONE 0x3c JUMPRAMU About to jump to UALIAS space 0x3d JUMPRAMUOK Jumped to UALIAS space 0x3e JUMPRAMC About to jump to cached space 0x3f JUMPRAMCOK Jumped to cached space 0x40 STACKRAM About to test stack area of memory 0x41 STACKRAMOK...
  • Page 43 0x89 XTLBMISS 0x8a UTLBMISS 0x8b KTLBMISS 0x8c GENERAL 0x8d NOTIMPL 0x8e CACHE 0x8f 0x90 HUBINTS 0x91 HUBLOCAL 0x92 HUBCONFIG 0x93 PREM_DIR_REQ All nodes must have premium DIMMs for this configuration 0x94 UNUSED1 0x95 HUBUART Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 44 NASID calculation failed 0xad ROUTE_CALC Route calculation failed 0xae ROUTE_DIST Route distribution failed 0xaf NASID_DIST NASID distribution failed 0xb0 NO_NASID Master did not assign a NASID 0xb1 NO_MODULEID Module ID arbitration failed 0xb2 MIXED_SN00 Origin200 mixed with Origin2000 Power-On Diagnostics...
  • Page 45 This is similar to Cac mode, except the cache is not used and it runs slower. The PROM can be forced to enter POD mode at different stages of the boot process by setting Debug Switches. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 46 The POD mode prompt is in the format: POD Dex MSC 001 3A> ___ ___ ___ ___ ___ __ where the fields are: 1. Always POD, indicating POD mode. 2. Dex, indicating POD mode is running memoryless out of the cache only, or Cac, indicating POD mode is running out of cached memory, or Unc, indicating POD mode is running out of uncached memory.
  • Page 47 Three special suffixes are provided to facilitate entering large constants: Gigabytes e.g.: 1g == (1 << 30) Megabytes e.g.: 32m == (32 << 20) Kilobytes e.g.: 100k == (100 << 10) Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 48 3.3.1.3 Expressions Arithmetic expressions are permitted and are similar to C expressions in operators and order of evaluation. Many commands require expressions to be parenthesized to avoid ambiguity. For example: px (0xdeadbeef >> 6) & 0xff sd md_memory_config (ld md_memory_config | 077777777) The supported operators are: Unary: () ~ ! - + LD LW LH LB, and * (same as LD) Binary: + - * / % | &...
  • Page 49 Router registers are prefixed with RR_. The names of the Crossbow (XBOW) registers are prefixed with XB_. Register names are case-insensitive and may be truncated to the extent that they are unambiguous. As shown in the following examples. Origin200/2000 IP27 PROM Technical Reference Manual 3-11...
  • Page 50 Case-insensitive Hub Register Example 3-1 POD Dex IOC3 000 4A> px (md_refresh_control + 8) 0x9200000001200028 POD Dex IOC3 000 4A> pr n:1 md_ref Register: MD_REFRESH_CONTROL (0x9200000101a00020) Value : 0x0000000000000000 (loaded from remote register) <63> RW ENABLE <23:12> RW COUNTER 0x2e0 <11:00>...
  • Page 51 II_ICRBC_D II_ICRBD_A II_ICRBD_B II_ICRBD_C II_ICRBD_D II_ICRBE_A II_ICRBE_B II_ICRBE_C II_ICRBE_D II_ICTO II_ICTP II_IECLR II_IFDR II_IGFX0 II_IGFX1 II_IIAP II_IIDEM II_IIDSR II_IIWA II_ILAPO II_ILAPR II_ILCSR II_ILLR II_IMEM II_IOWA II_IPCA II_IPCR II_IPDR II_IPPR II_IPRB0 II_IPRB8 II_IPRB9 II_IPRBA Origin200/2000 IP27 PROM Technical Reference Manual 3-13...
  • Page 52 II_IPRBB II_IPRBC II_IPRBD II_IPRBE II_IPRBF II_IPRTE II_IPRTE0 II_IPRTE1 II_IPRTE2 II_IPRTE3 II_IPRTE4 II_IPRTE5 II_IPRTE6 II_IPRTE7 II_IPTP0 II_IPTP1 II_ITTE1 II_ITTE2 II_ITTE3 II_ITTE4 II_ITTE5 II_ITTE6 II_ITTE7 II_IXCC II_IXTT II_NOT_DONE II_WCR II_WID II_WSTAT Hub NI (Network Interface) Registers Example 3-5 NI_AGE_CPU0_MEMORY NI_AGE_CPU0_PIO NI_AGE_CPU1_MEMORY NI_AGE_CPU1_PIO NI_AGE_GBR_MEMORY NI_AGE_GBR_PIO NI_AGE_IO_MEMORY NI_AGE_IO_PIO NI_DIAG_PARMS NI_ERROR_CLEAR NI_GLOBAL_PARMS...
  • Page 53 R10000 Coprocessor 0 Registers C0_23 C0_24 C0_7 C0_BADVADDR C0_BRDIAG C0_CACHEERR C0_CAUSE C0_COMPARE C0_CONFIG C0_CONTEXT C0_COUNT C0_ECC C0_ENTRYHI C0_ENTRYLO0 C0_ENTRYLO1 C0_EPC C0_ERROREPC C0_FRAMEMASK C0_INDEX C0_LLADDR C0_PAGEMASK C0_PERFCOUNT C0_PRID C0_RANDOM C0_STATUS C0_TAGHI C0_TAGLO C0_WATCHHI C0_WATCHLO C0_WIRED C0_XCONTEXT Origin200/2000 IP27 PROM Technical Reference Manual 3-15...
  • Page 54 Symbols The PROM knows the names of symbols within the PROM (and within the kernel if one is loaded; see the kern_sym command). Symbols may appear in arithmetic expressions and are replaced with their addresses. For example: POD Dex IOC3 000 4A> px main 0xc00000001fc07784 POD Dex IOC3 000 4A>...
  • Page 55 Count or length Command NODE Node ID (also called NASID: Numa Address Space Identifier) SLICE CPU, either A or B CrayLink Vector path (e.g., 0x15) VADDR CrayLink Vector address (offset or NI or RR register name) Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 56 Command Summary The help or ? command, used by itself, prints a command summary similar to that shown in Table 4-2. The help or ? command may also take one command name argument to print the summary for a specific command. Parts of a command enclosed in square brackets ([]) are optional.
  • Page 57 Dump icache line ailine line asline Dump scache line asline line Set memory mode go dex|unc|cac bist Self-test Hub bist le|ae|lr|ar [n:NODE] rbist Self-test Router rbist le|ae|lr|ar VEC disable Disable unit disable n:NODE [SLICE] Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 58 Command Summary Table 4-2 (continued) Command Purpose Syntax enable Enable unit enable n:NODE [SLICE] tdisable Temp. disable tdisable n:NODE [SLICE] dirinit Dir/prot init dirinit START LEN meminit Memory clear meminit START LEN dirtest Dir. test/init dirtest START LEN memtest Memory test/init memtest START LEN santest Mem.
  • Page 59 Use kernel symtab kern_sym kdebug Enable kernel debug functions kdebug [STACKADDR] initlog Init. PROM log initlog [n:NODE] setenv Set variable setenv [n:NODE] VAR [“STRING”] unsetenv Remove variable unsetenv [n:NODE] VAR printenv Print variables printenv [n:NODE] [VAR] Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 60 Command Summary Table 4-2 (continued) Command Purpose Syntax Print PROM log entries log [n:NODE] [SKIP [COUNT]] rlog Print PROM log entries in reverse rlog [n:NODE] [SKIP [COUNT]] setpart Set up partition setpart RTR_LIST hubsde Send Hub data error hubsde rtrsde Send Router data error rtrsde chklink...
  • Page 61 [GPRNAME [VAL | ~] Prints the value of R10000 register(s) or a Hub register. Without arguments, prints out the R10000 GPRs. With a register name argument, loads a value from the register and decodes Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 62 it into bit fields. With a register name and value, decodes the specified value into bit fields. With a register name and tilde (~), decodes the register’s reset default value into bit fields. If a value or tilde (~) is specified, the command may also be used with router registers (RR_*).
  • Page 63 Note that cached addresses should not be accessed while running in Dex mode. 4.3.4 Set Registers • Set General Purpose Register Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 64 – sr GPRNAME VAL – GPRNAME = VAL Assigns a R10000 GPR with the requested value. The modification is done in the register storage area where the registers are saved in the event of an exception or NMI. • Set Floating Point Register –...
  • Page 65 Example: for (v0=0;v0<5;v0=v0+1) {px v0} • if (EXPR) CMD Executes the command if the expression is true. Example: loop { if (ld n:1 u:32m) { px 1 }; sleep 1 } • delay MICROSEC Origin200/2000 IP27 PROM Technical Reference Manual 4-11...
  • Page 66 Pauses for a specified number of microseconds. May not be interrupted by Control-C. Example: loop { sd md_led0 v0; v0=v0+1; delay 25000 } • sleep SEC Pauses for a specified number of seconds. May not be interrupted by Control-C. • time CMD Benchmarks a specified command and displays the total execution time.
  • Page 67 • version Displays version string of the PROM that is running. For example: POD Dex Hub 000 1A> version IP27 PROM SGI Version 1.4 Bring-up built 05:08:35 PM Jul 25, 1996 Origin200/2000 IP27 PROM Technical Reference Manual 4-13...
  • Page 68 4.3.9 Cache • inval [i][d][s] Invalidates the instruction, data, and or secondary caches. Any combination of the three letters may be supplied. The contents of the caches is not written back to memory. • flush Causes the contents of the primary and secondary data caches to be flushed to memory. •...
  • Page 69 The Router BIST should be executed using the le or ae arguments. Following the test, the Router will resets itself. Then the lr or ar arguments should be used to retrieve the results of the BIST. Origin200/2000 IP27 PROM Technical Reference Manual 4-15...
  • Page 70 Enable and Disable Hardware • disable NODE [SLICE] Sets the environment variable DisableA or DisableB in the specified node’s PROM log. If no slice is specified, both DisableA and DisableB are set. Once disabled, a CPU will not participate in the boot process and will completely prevent itself from making any Hub requests by storing a 1 into its PI_CPU_ENABLE register as soon as possible.
  • Page 71 Fills a range of memory with a byte value. The fill uses double-word stores where possible to speed the operation. DST is the start byte address, BYTE is the byte value to use, and LEN is the length in bytes. Origin200/2000 IP27 PROM Technical Reference Manual 4-17...
  • Page 72 • memcpy DST SRC LEN Copies a range of memory. The copy uses double-word loads and stores where possible to speed the operation. DST is the destination byte address, SRC is the source byte address, and LEN is the length in bytes. •...
  • Page 73 The internal promcfg data structure is built. This structure is a connectivity graph of all Hubs and Routers in the system. The pcfg command can be used to view the results. See also: route command (below). Origin200/2000 IP27 PROM Technical Reference Manual 4-19...
  • Page 74 • pcfg [n:NODE] [v] Displays the contents of the promcfg data structure. This structure is a connectivity graph of all Hubs and Routers in the system. This command should only be used in Cac mode after discovery has been performed. If the v argument is supplied, only abbreviated hub information will be displayed.
  • Page 75 Reads the unique laser tag from the NIC (Number In a Can) of a router, given a CrayLink vector to the router (default 0). See Vector Addressing for information about vectors. Example: POD Dex Hub 000 1A> rnic 1 0x0000000000020300 4.3.23 System Controller • scw ADDR [VAL [COUNT]] Origin200/2000 IP27 PROM Technical Reference Manual 4-21...
  • Page 76 Stores byte(s) to the Origin2000 Module System Controller non-volatile RAM. The NVRAM address must be between 0 and 2047, inclusive. Addresses 1792 through 2047 are reserved for MSC use. If neither VAL or COUNT is specified, scw enters editing mode in which the current contents of each address is displayed and the user is allowed to modify it by typing in a hexadecimal value (without the 0x).
  • Page 77 Turns on kernel debugging functions (see Kernel Debugging) and returns to POD in a modified Dex mode in which the cache is flushed and the stack pointer is moved into memory, but the CPU continues to execute out of the PROM. • altregs NUM Origin200/2000 IP27 PROM Technical Reference Manual 4-23...
  • Page 78 If NUM is 1, causes the PROM to stop using the set of R10000 registers that were saved on PROM entry, and instead use the set of registers saved by the Kernel debugger Symmon. If NUM is 0, causes the PROM to switch back to its regular saved registers. See Kernel Debugging.
  • Page 79 PROM instead of the local PROM. If SKIP is specified, the first SKIP entries are not displayed. If COUNT is specified, COUNT entries are displayed (otherwise, 24 entries are displayed). The output is paged to prevent it from scrolling away. Origin200/2000 IP27 PROM Technical Reference Manual 4-25...
  • Page 80 4.3.27 Partitioning • setpart RTR_LIST Sets reset partitions for partition (testing only). 4.3.28 I/O Diagnostics • dgxbow [m<n|h|m> [n<NODE>] Runs Crossbow diagnostic. The first optional two-character argument specifies the test mode as Normal, Heavy, or Manufacturing. The second optional argument specifies a remote NASID on which to run the test.
  • Page 81 There is support in the IP27PROM to dump kernel data structures info via idbg. This is especially useful if symmon does not respond to the first NMI and you use the second NMI to drop into the IP27PROM. Origin200/2000 IP27 PROM Technical Reference Manual 4-27...
  • Page 82 On NMI, all the kernel registers are saved and you enter PROM mode. To switch to kernel debug mode, you just type . This will enable kernel symbols in the PROM, kdebug switch the stack to memory so that we can do cached references, and switch your register set to the one that was saved on NMI.
  • Page 83 1A 000: CPU 0: 1A 000: CPU 1: 1A 000: CPU 2: 1A 000: CPU 3: 1A 000: 1A 000: vmp 0 at 0xa800000000f34000 1A 000: vmp 1 at 0xa800000000f34080 1A 000: vmp 2 at 0xa800000000f34100 Origin200/2000 IP27 PROM Technical Reference Manual 4-29...
  • Page 84 1A 000: vmp 3 at 0xa800000000f34180 1A 000: Example 4-6 1A 000: POD MSC Dex AltRegs 0x9600000000011400> call idbg_print putbuf 0xffffff: ffffffffff 1A 000: Memfit Initialized... 1A 000: <5>NOTICE: [memsched_init]: There are 2 <= 2^1 memory nodes. 1A 000: b.0.210 1A 000: <4>WARNING: Nasid 0 interrupt bit 31 set in INT_PEND1 1A 000: <4>WARNING: Nasid 0 interrupt bit 63 set in INT_PEND1 1A 000: <4>WARNING: Nasid 1 interrupt bit 31 set in INT_PEND1...
  • Page 85 Note that even when ECC checking is turned off, ECC correcting remains enabled. It is not possible to turn off error correcting in the Hub. For this reason, memory tests must be performed in the following order: test directory memory; initialize directories; test regular memory. Origin200/2000 IP27 PROM Technical Reference Manual 4-31...
  • Page 86 The standard memory test performs multiple phases: Store/load For each double-word address in the memory range, do a store of all 5’s, and immediately load it back and compare, then do a store of all A’s, and immediately load it back and compare. This test may find problems with RAM cells that take too long to change state.
  • Page 87 <-- Prints the exception type and status registers <-- Prints all R10000 general purpose registers error_dump <-- Displays detailed Hub error register dump crbx <-- If it appears to be I/O-related edump_bri <-- If it appears to be Bridge-related Origin200/2000 IP27 PROM Technical Reference Manual 4-33...
  • Page 88 fru 1 <-- Runs the FRU Analyzer on the error dump data The third case usually indicates the Hub chip has been hung, typically because of I/O problems, and is very difficult to debug. The only available information is the last thing the PROM printed (or the last progress LED value).
  • Page 89 NASID may be flashed in parallel to save time; for example, flash 1 2 3 After flashing, the system may be rebooted, or additional route and flash commands may be executed. Origin200/2000 IP27 PROM Technical Reference Manual 4-35...
  • Page 91 Reserved PROM Log Variables Where the value field is numeric, it is generally stored as a decimal number, or a hex number if prefixed by 0x. The word # appears where the data is numeric. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 92 Number of the module this node card was last plugged into, updated automatically (Origin2000 only). Origin200Module Module number for master/slave configuration (Origin200 only). ForceConsole Temporary variable automatically set if no console is found. After automatic reboot, a default console will be selected.
  • Page 93 Error Log Keys Value Meaning Fatal string Fatal error Error string Non-fatal error Info string Important info message List Keys Table 5-3 List Keys Value Meaning There are currently no list keys in use. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 95 In this state, it is not yet valid to access the memory and I/O spaces of remote nodes using regular remote memory accesses (where the Node ID has been placed into physical address bits 40:32, such as by using the n: modifier). Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 96 The Origin2000 Hub and Routers have a feature called vector addressing which allows access to the any remote Hub’s Network Interface (NI_) register subset, and to all Router (RR_) registers. To read or write a remote Hub or Router register requires specifying a path called a vector.
  • Page 97 Figure 6-3 shows the connectivity of a fully populated Star Router configuration with the Router in slot 1 and the Star Router in slot 2. It is also possible to place the Star Router in slot 1 and the Router in slot 2 (see Figure 6-4). Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 98 Figure 6-3 Fully-Populated Star Router Connectivity (First Possibility) The midplane connection from R1 port 6 is internal to the system and connects directly to N3. The connection from R1 port 3 is provided by an external jumper (or cable) connecting to SR2, and is converted from differential to single-ended by the XC chip in the Star Router.
  • Page 99 Destination Source 6.2.4 Null Router Configuration The Null Router configuration is the simplest way to create a 4-CPU system. Figure 6-5 shows the two possible connectivities of a module using the Null Router configuration. Origin200/2000 IP27 PROM Technical Reference Manual...
  • Page 100 Figure 6-5 Null Router Connectivity (Two Possibilities) In this configuration, only one inexpensive Null Router card is needed. Null Routers contain very little componentry and simply connect two Hub slots together. The system is not at all scalable, and may be only half-populated (populating both halves as two separate systems is not supported).

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