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SCSI Address Map
The driver emulates two SCSI busses and 128 targets on each bus to map 512 devices maximum.
The device mapping starts on either Bus 0 or Bus 1, depending on the driver EmulexOption parameter.
This table identifies the fixed mapping between Windows Server 2003 or Windows 2000 Server bus/
target/LUN and the Fibre Channel native address (AL_PA/SEL_ID). There are two potential mappings
based on the ScanDown parameter. Refer to the appropriate columns in the table below.
The index for the following table can be derived by:
#define TARGETS_PER_BUS 128
i = (Srb->PathId > 0) ? Srb->PathId-1 : 0; //Bus 0 = dummy bus
nodeInx = ((i * TARGETS_PER_BUS) + Srb-.TargetId) ;
* Use this translation if ScanDown = 0 (default)
** Use this translation if ScanDown = 1
** If bit 9 of EmulexOption = 0, then device addressing begins with Bus #0, not Bus #1
Table 6: SCSI Address Map
ScanDown = 0 (default)
ScanDown = 1
BUS #
TARGET #
LUN #
AL_PA*
SEL_ID*
AL_PA**
SEL_ID**
0
0-127
0-255
none
none
none
none
1***
0
0-255
0x01
0x7D
0xEF
0x00
1
0-255
0x02
0x7C
0xE8
0x01
2
0-255
0x04
0x7B
0xE4
0x02
3
0-255
0x08
0x7A
0xE2
0x03
4
0-255
0x0F
0x79
0xE1
0x04
5
0-255
0x10
0x78
0xE0
0x05
6
0-255
0x17
0x77
0xDC
0x06
7
0-255
0x18
0x76
0XDA
0x07
8
0-255
0x1B
0x75
0xD9
0x08
9
0-255
0x1D
0x74
0xD6
0x09
10
0-255
0x1E
0x73
0xD5
0x0A
11
0-255
0x1F
0x72
0xD4
0x0B
12
0-255
0x23
0x71
0xD3
0x0C
13
0-255
0x25
0x70
0xD2
0x0D
14
0-255
0x26
0x6F
0xD1
0x0E
15
0-255
0x27
0x6E
0xCE
0x0F
16
0-255
0x29
0x6D
0xCD
0x10
17
0-255
0x2A
0x6C
0xCC
0x11
SCSIport Miniport Driver Configuration Section
Page 63