Physical device mapping for PCI-X I/O Boards (Sun Fire[TM] 4800, E4900, 6800, E6900) and PCI-X IB_SSC (Sun Fire[TM] v1280, E2900 and Sun Netra[TM] 1280, 1290).

Asset ID:	1-71-1003932.1
Update Date:	2011-04-07
Keywords:

Solution Type Technical Instruction Sure

Solution 1003932.1 : Physical device mapping for PCI-X I/O Boards (Sun Fire[TM] 4800, E4900, 6800, E6900) and PCI-X IB_SSC (Sun Fire[TM] v1280, E2900 and Sun Netra[TM] 1280, 1290).

Related Items


Sun Fire E6900 Server
 Sun Netra 1290 Server
 Sun Fire 6800 Server
 Sun Fire E4900 Server
 Sun Fire 4800 Server
 Sun Fire E2900 Server
 Sun Fire V1280 Server
 Sun Netra 1280 Server

Related Categories


GCS>Sun Microsystems>Servers>Midrange V and Netra Servers
 GCS>Sun Microsystems>Servers>Midrange Servers

PreviouslyPublishedAs
205509

Description
The document describes the physical IO device mapping for the Serengeti PCI-X IO Assembly and the LW8 PCI-X IB_SSC Assembly. This will be handy while decoding Solaris[TM]/OBP device-paths to their physical device slot.

Steps to Follow
Physical device mapping information.

Sun Fire[TM] 4800, E4900, 6800, and E6900 PCI-X I/O Layout:

IO-Controller	Bus/Leaf	Device Path Address	PCI#	Bus Speed	Slot
XMITS0	B	pci@xx,700000	1	33Mhz	0
XMITS0	B	pci@xx,700000	2	33Mhz	1
XMITS0	A	pci@xx,600000	2	33/66/100Mhz	2
XMITS0	A	pci@xx,600000	1	33/66/100Mhz	3
XMITS1	B	pci@xx,700000	1	33/66/100Mhz	4
XMITS1	B	pci@xx,700000	2	33/66/100Mhz	5
XMITS1	A	pci@xx,600000	2	33/66/100Mhz	6
XMITS1	A	pci@xx,600000	1	33/66/100Mhz	7

where "xx" in column Device Path Address is the AID (XMITS Agent ID). See example below to understand a typical device path in Solaris/OBP :

             /ssm@0,0/pci@1e,700000/pci@1/network@1"
^       ^^    ^       ^
Node Id __________|       |     |       |________ PCI Device #
|     |
AID    |________Bus/Leaf # (A=600000 or B=700000)

     To decode the above path, follow the AID layout as per Infodoc 27432
To locate IO board number, divide AID by 2 and subtract 6.
Note that the AID is in HEX.
Hex: (1e/2) - 6 = 9
Alternately -
Hex 0x1e = Decimal 30
thus
(30/2) - 6 = 9

The result tells us that the device resides on I/O boat in slot 9 (IB9). The even numbered AID indicates XMITS0(whereas an odd number AID would indicate XMITS1), "700000" indicates leaf B and PCI device # 1 indicates that this is PCI slot 0 in IB9.

Note :

Slot 0 and Slot 1 is fixed at 33MHZ. This is because, the SBBC ASIC (Serengeti BootBus Controller ASIC on board the PCI-X IO Board) shares the same bus/leaf B on IO Controller XMITS0.

The Serengeti PCI+ IO Assembly shares a similar physical device-mapping as documented in <Document: 1012185.1>

Follow the Sun Fire E6900/E4900 and Sun Fire 6800/4800 Systems PCI-X Assembly Installation Guide for additional information

Sun Fire[TM] V1280, E2900 PCI-X IB_SSC Assembly Layout:

IO-Controller	Leaf	Device Path Address	Bus Speed	Slot
XMITS0	B	pci@18,700000/pci@4/bootbus-controller@3	33Mhz	u
XMITS0	B	pci@18,700000/pci@4/ide@2	33Mhz	v
XMITS0	B	pci@18,700000/scsi@2	66Mhz	w
XMITS0	B	pci@18,700000/scsi@2,1	66Mhz	x
XMITS0	B	pci@18,700000/network@1	66Mhz	y
XMITS0	B	pci@18,700000/network@3	66Mhz	z
XMITS0	A	pci@18,600000/<device>@2	33/66/100Mhz	5
XMITS0	A	pci@18,600000/<device>@1	33/66/100Mhz	4
XMITS1	B	pci@19,700000/<device>@2	33/66/100Mhz	3
XMITS1	B	pci@19,700000/<device>@1	33/66/100Mhz	2
XMITS1	A	pci@19,600000/<device>@2	33/66/100Mhz	1
XMITS1	A	pci@19,600000/<device>@1	33/66/100Mhz	0

[u] SBBC

[v] DVD-R

[w] LSI1030 2x Internal SCSI Disks (Ultra320) + DAT

[x] LSI1030 External SCSI (Ultra320)

[y] ce0

[z] ce1

Note :

For additional clarity, Bus/Leaf B on XMITS0 is shared by devices via the hardware layout as shown below -

                                                 +---------+
|         |----> 2x146GB HDD
+----+ LSI1030 |
|    |         |----> DAT
|    +---------+
|    +---------+
66Mhz   |    |         | 33Mhz
XMITS0 ---------- Bus B (700000)----------+----| Bridge  +-----+--> SBBC
|    | Chip    |     |
|    +---------+     +--> DVD
|
+---------------> 2xEthernet ports
(ce0 and ce1)

The slower devices such as the SBBC (Serengeti BootBus Controller ASIC) and DVD drive is isolated behind a Bridge Chip, so as to not pull the entire bus down to 33Mhz.

The LW8 PCI+ IO Assembly shares a similar physical device-mapping as documented in <Document: 1007870.1>

Follow the Sun Fire[TM] E2900/V1280 PCI-X I/O Assembly Installation Guide for additional information

Product
Sun Fire V1280 Server
Sun Fire E6900 Server
Sun Fire E4900 Server
Sun Fire E2900 Server
Sun Netra 1280 Server
Sun Netra 1290 Server
Sun Fire 6800 Server
Sun Fire 4800 Server

pci-x, xmits, lw8, serengeti, 2900, 1280, 6900, 4900, mapping, layout, device
Previously Published As
86460

Change History
Date: 2009-11-30
User Name: Josh Freeman
Action: Refreshed
Comment: Made document Contract; Not sure why it wasn't ever as such, but all links are fine for this audience and the content too. Refreshed per ESG Content Team efforts.
Date: 2007-03-07
User Name: 95826
Action: Approved
Comment: - verified metadata
- changed review date to 2008-03-06
- checked for TM - none added
- checked audience : internal
Publishing
Version: 6
Date: 2007-03-06
User Name: 95826
Action: Accept
Comment:
Version: 0

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