10/30/06 |
INCITS T10, Project 1828-D, Revision 00a |
Annex A
(normative)
FCP-4 mapping to SAM-3 (Fibre Channel Protocol Service mapping to SCSI Architectural Model - 3)
A.1 Definition of procedure terms
FCP-4 services are provided to the application client by the initiator FCP_Port to request and manage tasks as described by the SAM-3 standard. SAM-3 further defines how the target FCP_Port enables the device server to receive and process the tasks addressed to a logical unit. The Fibre Channel protocol is described in terms of the services provided by the initiator FCP_Port and target FCP_Port.
See table A.1 for the mapping of objects and identifiers used in this standard to the equivalent remote procedure call terms and definitions used in the SCSI Architecture Model-3 standard.
Table A.1 - FCP-4 procedure terms mapped to terms from SAM-3 standard
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FCP-4 standard procedure terms |
Equivalent SAM-3 terms |
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address identifier of initiator FCP_Port |
initiator port identifier |
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address identifier of target FCP_Port |
target port identifier |
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Port_Name of initiator FCP_Port |
initiator port name |
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Port_Name of target FCP_Port |
target port name |
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fully qualified exchange identifier |
I_T_L_Q Nexus |
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fully qualified exchange identifier + logical unit number |
I_T_L_Q Nexus |
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See table A.2 for the definitions of the terms used by this standard and the equivalent SAM-3 names of the terms, the name of the standard where the procedure terms are defined, the standard where the binary contents of the terms are defined, and the routing of the terms. The routing shows:
a)the originating object of the term;
b)the object that is the final destination of the term; and
c)the objects that the term moves through to reach the final destination object.
Working Draft, FCP-4 |
74 |
INCITS T10, Project 1828-D, Revision 00a |
10/30/06 |
Table A.2 - Procedure terms
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Standard |
Standard where |
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FCP terms |
where term |
binary contents |
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Term routing |
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defined |
of term defined |
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application client buffer offset |
SAM-3 |
SAM-3 |
DS |
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targ |
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init |
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data buffer size |
SAM-3 |
SAM-3 |
AC |
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init |
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command descriptor block |
SAM-3 |
SAM-3/cmd |
AC |
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init |
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targ |
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DS |
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(note 1) |
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Data-In Buffer |
SAM-3 |
cmd (note 2) |
DS |
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targ |
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init |
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AC |
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Data-Out Buffer |
SAM-3 |
cmd (note 2) |
AC |
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init |
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targ |
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DS |
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device server buffer |
SAM-3 |
cmd (note 2) |
DS |
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targ |
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initiator SCSI ID |
SAM-3 |
this standard |
DS |
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targ |
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or TM |
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targ |
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link control function |
this stan- |
this standard |
AC |
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init |
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targ |
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dard |
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logical unit number |
SAM-3 |
this standard |
AC |
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init |
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targ |
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DS |
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or AC |
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init |
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targ |
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or DS |
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targ |
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request byte count |
SAM-3 |
SAM-3 |
DS |
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targ |
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service response |
SAM-3 |
this standard |
DS |
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targ |
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init |
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AC |
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or targ |
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DS |
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status |
SAM-3 |
SAM-3 |
DS |
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targ |
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init |
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AC |
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task tag |
SAM-3 |
this standard |
AC |
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init |
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targ |
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DS |
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or AC |
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init |
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targ |
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or DS |
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targ |
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init |
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target port identifier |
SAM-3 |
this standard |
AC |
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init |
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targ |
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DS |
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or AC |
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init |
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targ |
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or DS |
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targ |
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target port identifier + initiator port |
this stan- |
this standard |
targ |
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DS |
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identifier |
dard |
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or targ |
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TM |
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task attribute |
SAM-3 |
this standard |
AC |
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init |
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targ |
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DS |
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Key: AC = application client, cmd = SCSI command standards, DS = device server, init = initiator, |
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SAM-3 = SCSI Architecture Model-3 standard, TM = task manager, targ = target |
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Notes
1)The portions not defined in SAM-3 are defined in the SCSI command standards (e.g. SPC-3).
2)Parameter lists are defined within one of the SCSI command standards (e.g., SPC-3). SCSI standards do not define non-parameter list information.
75 |
Working Draft, FCP-4 |