Banner Command Output

The output of the banner command appears as follows, indicating that it is a PCI-based system (shows UPA/PCI in banner).

ok banner Sun Ultra 450 (3 X UltraSPARC-II 248MHz), Keyboard Present OpenBoot 3.5, 256 MB memory installed, Serial #8525185 Ethernet address 8:0:20:82:a5:81, Host ID: 80821581

Generic Names

Note that the output of the show-devs command shows some PCI- based nodes. PCI-based systems use generic names for devices. That is, the on-board network is named "network", and internal disks are named "diskn", with n representing the scsi target number for that disk, ("disk" with no number refers to "disk0"). Plug in PCI cards with their own FCode PROM may or may not be using generic names.

For details on generic names, see Recommended Practices available on the homepage for the Open Firmware Working Group at:

http://playground.sun.com/1275

ok show-devs /pci@6,2000 /pci@6,4000 /pci@4,2000 /pci@4,4000 /SUNW,ffb@1d,0 /SUNW,UltraSPARC-II@1,0 /mc@0,0 /pci@1f,2000 /pci@1f,4000 /counter-timer@1f,1c00 /associations /virtual-memory /memory@0,0 /aliases /options /openprom /chosen /packages /pci@6,4000/scsi@4,1 /pci@6,4000/scsi@4

/pci@6,4000/scsi@3,1 /pci@6,4000/scsi@3 /pci@6,4000/scsi@4,1/tape /pci@6,4000/scsi@4,1/disk /pci@6,4000/scsi@4/tape /pci@6,4000/scsi@4/disk /pci@6,4000/scsi@3,1/tape /pci@6,4000/scsi@3,1/disk /pci@6,4000/scsi@3/tape /pci@6,4000/scsi@3/disk /mc@0,0/bank@0,c0000000 /mc@0,0/bank@0,80000000 /mc@0,0/bank@0,40000000 /mc@0,0/bank@0,0 /mc@0,0/bank@0,40000000/dimm@0,3 /mc@0,0/bank@0,40000000/dimm@0,2 /mc@0,0/bank@0,40000000/dimm@0,1 /mc@0,0/bank@0,40000000/dimm@0,0 /mc@0,0/bank@0,0/dimm@0,3 /mc@0,0/bank@0,0/dimm@0,2 /mc@0,0/bank@0,0/dimm@0,1 /mc@0,0/bank@0,0/dimm@0,0 /pci@1f,4000/scsi@2 /pci@1f,4000/scsi@3 /pci@1f,4000/network@1,1 /pci@1f,4000/ebus@1 /pci@1f,4000/scsi@2/tape /pci@1f,4000/scsi@2/disk /pci@1f,4000/scsi@3/tape /pci@1f,4000/scsi@3/disk /pci@1f,4000/ebus@1/SUNW,CS4231@14,200000 /pci@1f,4000/ebus@1/SUNW,envctrl@14,600000 /pci@1f,4000/ebus@1/flashprom@10,0 /pci@1f,4000/ebus@1/eeprom@14,0 /pci@1f,4000/ebus@1/fdthree@14,3023f0 /pci@1f,4000/ebus@1/ecpp@14,3043bc /pci@1f,4000/ebus@1/su@14,3062f8

/pci@1f,4000/ebus@1/su@14,3083f8 /pci@1f,4000/ebus@1/se@14,400000 /pci@1f,4000/ebus@1/sc@14,500000 /pci@1f,4000/ebus@1/SUNW,pll@14,504000 /pci@1f,4000/ebus@1/power@14,724000 /pci@1f,4000/ebus@1/auxio@14,726000 /associations/slot2dev /associations/slot2led /associations/slot2disk /openprom/client-services /packages/obdiag /packages/disk-label /packages/obp-tftp /packages/deblocker /packages/terminal-emulator

SCSI Internal Busses

For Ultra 450 systems, there are two internal SCSI busses. The device "scsi" refers to the internal SCSI I/O bus for internal disks, while device "scsix" refers to the removeable-media and external (connector on back panel) internal SCSI bus.

The following shows the output of a devalias command on a Sun Ultra 450 UPA/PCI system.

ok devalias screen /SUNW,ffb@1d,0 disk /pci@1f,4000/scsi@3/disk@0,0 disk0 /pci@1f,4000/scsi@3/disk@0,0 disk1 /pci@1f,4000/scsi@3/disk@1,0 disk2 /pci@1f,4000/scsi@3/disk@2,0 disk3 /pci@1f,4000/scsi@3/disk@3,0 scsi /pci@1f,4000/scsi@3

diskx0 /pci@1f,4000/scsi@2/disk@0, diskx1 /pci@1f,4000/scsi@2/disk@1,0 diskx2 /pci@1f,4000/scsi@2/disk@2,0 diskx3 /pci@1f,4000/scsi@2/disk@3,0 cdrom /pci@1f,4000/scsi@2/disk@6,0:f tape /pci@1f,4000/scsi@2/tape@4,0 scsix /pci@1f,4000/scsi@2 pci /pci@1f,4000 pcia /pci@1f,2000 pcib /pci@1f,4000 pci0 /pci@1f,4000 pci1 /pci@1f,2000 pci2 /pci@4,4000 pci3 /pci@4,2000 pci4 /pci@6,4000 pci5 /pci@6,2000 flash /pci@1f,4000/ebus@1/flashprom@10,0 nvram /pci@1f,4000/ebus@1/eeprom@14,0 parallel /pci@1f,4000/ebus@1/ecpp@14,3043bc net /pci@1f,4000/network@1,1 ebus /pci@1f,4000/ebus@1 i2c /pci@1f,4000/ebus@1/SUNW,envctrl floppy /pci@1f,4000/ebus@1/fdthree tty /pci@1f,4000/ebus@1/se ttyb /pci@1f,4000/ebus@1/se:b ttya /pci@1f,4000/ebus@1/se:a keyboard! /pci@1f,4000/ebus@1/su@14,3083f8:forcemode keyboard /pci@1f,4000/ebus@1/su@14,3083f8 mouse /pci@1f,4000/ebus@1/su@14,3062f8

.properties for a PCI Device

When you look at properties for a device node of a PCI device, you will see a few properties that are unique to PCI devices and a few properties that have a different format than that of a SBus device. For example, the output of .properties for a PCI device:

okcd /pci@1f,4000/scsi@3 ok .properties interrupts 00000020 assigned-addresses 81001810 00000000 00000400 00000000 00000100 82001814 00000000 00010000 00000000 00000100 82001818 00000000 00011000 00000000 00001000 device_type scsi-2 clock-frequency 02625a00 reg 00001800 00000000 00000000 00000000 00000000 01001810 00000000 00000000 00000000 00000100 02001814 00000000 00000000 00000000 00000100 02001818 00000000 00000000 00000000 00001000 model Symbios,53C875 compatible glm name scsi devsel-speed 00000001 class-code 00010000 max-latency 00000040 min-grant 00000011 revision-id 00000003 device-id 0000000f vendor-id 00001000

Following example shows generic names for devices under /pci@1f,4000/scsi@3:

ok ls f00809d8 tape f007ecdc disk

.speed Command

The command .speed shows the speed for both processors and busses attached to the system, as follows:

ok .speed CPU Speed : 248.00MHz UPA Speed : 082.66MHz PCI Bus A at UPA node 1f: 66Mhz PCI Bus B at UPA node 1f: 33Mhz PCI Bus A at UPA node 6: 66Mhz PCI Bus B at UPA node 6: 33Mhz PCI Bus A at UPA node 4: 66Mhz PCI Bus B at UPA node 4: 33Mhz

Probing of Slots For PCI Busses

The Sun Ultra 450 UPA/PCI system has ten PCI plug-in slots, distributed across six PCI busses, called pci0 to pci5; probing of slots for those busses is controlled by the following two NVRAM configuration variables:

Variable Name	Default Value	Description
pcio-probe-list	3 ,2, 4	Controls probe order of plug-in devices under pcio
pci-slot-skip-list	none	Controls skipping of PCI plug-in slots

pci0-probe-list specifies the device probe order on the "B" bus of the 1F PCI Controller. Device 3 is the motherboard 875 UltraSCSI bus (internal disks), device 2 is the motherboard 875 for removeable media and backpanel external connections (two motherboard 875 chips), while device 4 is an open 33MHz 32-bit slot for plug-in cards.

The remaining 5 PCI busses (pci1 to pci5) probe device slots in ascending numerical order, which order cannot be changed.

pci-slot-skip-list is a list (1 to 10) of PCI slots that should not be probed. The values "1" to "10" correspond to the backpanel PCI slots, from bottom to top.

The Ultra 450 systems provide 10 PCI plug-in slots, numbered from 1 to 10, bottom-to-top (accessible and labeled from the back of the system). The 10 PCI slots correspond to the six PCI busses as follows:

PCI Slot	PCI Bus PCI Device	Width	Speed
10	pci0	/pci@1f,4000/xxx@432Bit	33 MHz
9	pci2	/pci@4,4000/xxx@232Bit	33 MHz
8	pci2	/pci@4,4000/xxx@332Bit	33 MHz
7	pci2	/pci@4,4000/xxx@464Bit	33MHz
6	pci3	/pci@4,2000/xxx@164Bit	66MHz
5	pci1	/pci@1f,2000/xxx@164Bit	66MHz
4	pci5	/pci@6,2000/xxx@164Bit	66MHz
3	pci4	/pci@6,4000/xxx@264Bit	33MHz
2	pci4	/pci@6,4000/xxx@364Bit	33MHz
1	pci4	/pci@6,4000/xxx@464Bit	33MHz

where the xxx will correspond to the particular PCI card plugged into that slot. For example, plugging an 875/glm SCSI controller card into slot 8 will yield/pci@4,4000/scsi@3,while plugging an 876 dual-SCSI card into slot 5 will yield two separate "devices" /pci@1f,2000/scsi@1 and /pci@1f,2000/scsi@1,1. Inserting a PCI-to-PCI card (such as used for a PCI bus expansion box, or as used on some multi-function PCI cards like the Sun Swift PCI card) into slot 4 will yield a device name /pci@6,2000/pci@1, and will subsequently have further devices created "underneath" this node, such as /pci@6,2000/pci@1/SUNW,hme@0,1.

Some of these slots are unavailable if certain graphics options are plugged-in. For example, installing the second FFB graphics card will occupy the physical space of PCI slots 10, 9, and 8. Other graphics options may use up the space occupied by PCI slots 10 to 4.

Probe SCSI Command

The following is a sample output of the probe-scsi command showing the two internal SCSI busses.

ok probe-scsi Primary UltraSCSI bus: Target 0 Unit 0 Disk SEAGATE ST34371W SUN4.2G8254 Target 1 Unit 0 Disk SEAGATE ST34371W SUN4.2G8254 Target 2 Unit 0 Disk SEAGATE ST34371W SUN4.2G8254 Target 3 Unit 0 Disk SEAGATE ST34371W SUN4.2G8254

Removeable-Media/External SCSI bus: Target 3 Unit 0 Removable Tape ARCHIVE VIPER 150 21531- 004 SUN-04.00.0 Target 4 Unit 0 Removable Tape EXABYTE EXB- 8500SMBANXH10458 Target 5 Unit 0 Removable Tape EXABYTE EXB-8200 263H Target 6 Unit 0 Removable Read Only device TOSHIBA XM- 5401TASUN4XCD3485