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Interfacing With the Open SCSI I/O Process (IOP)

Open SCSI for Fibre Channel Controller Integrator’s Manual for HP Integrity NonStop NS-Series Servers—

3-13

The CAM Control Block (CCB)

CCB Structure for Abort SCSI Command

The CCB structure shown in Table 3-4 is used for only one of the supported CAM

operations, Abort SCSI Command. See also Table 3-1 on page 3-9.

CCB Structure for Execute SCSI I/O

The CCB structure shown in Table 3-5 is used for only one of the supported CAM

operations, Execute SCSI I/O. See also Table 3-1 on page 3-9.

Table 3-4. CCB Structure for Abort SCSI Command

Size of Field

(in bytes) Description

Supported by

Open SCSI IOP?

4 Address of this CCB: the 32-bit address of this

field

Yes

2 CCB length: length in bytes of this CCB structure;

must be 20 for Abort SCSI Command CCB

Yes

1 CAM operation code (See Table 3-1

on page 3-9.) Yes

1 CAM status (See Table 3-8

on page 3-20.) Yes

Connect ID, which consists of these fields:

1(Reserved) -

1Path ID No

1 Target ID No

1 LUN No

4 CAM flags (See Ta bl e 3-2

on page 3-10.) Yes

4 Address of CCB to be acted upon Yes

Table 3-5. CCB Structure for Execute SCSI I/O (page1of2)