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BS ISO/IEC 14165-226:2020

BS ISO/IEC 14165-226:2020

$215.11

Information technology. Fibre channel – Single-byte command code sets mapping protocol. 6 (FC-SB-6)

Published By Publication Date Number of Pages
BSI 2020 292
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PDF Catalog

PDF Pages PDF Title
2 undefined
5 Foreword
Foreword
6 Blank Page
23 1 Scope
24 2 Normative References
2.1 Qualification and availability of references
2.2 Approved References
25 2.3 References Under Development
27 3 Definitions and Conventions
3.1 Overview
3.2 Definitions
30 3.3 Editorial Conventions
3.3.1 English Usage Conventions
3.3.2 FC Link Functions
3.3.3 Bit Numbering
31 3.3.4 Binary Notation
3.3.5 Hexadecimal Notation
3.4 Abbreviations, Acronyms, and Symbols
33 3.5 Keywords
35 4 Structure and Concepts
4.1 Introduction
4.2 FC-4 General Description
4.3 FC-SB-6 General Description
4.3.1 FC-SB-6 Instance
4.3.2 FC-SB-6 Protocols
36 4.4 Channel-Path Elements
4.4.1 Overview of Channel-Path Elements
4.4.2 Channel
4.4.3 Channel Image
37 4.4.4 Control Unit
4.4.5 Control-Unit Image
38 4.4.6 Link
4.5 Channel-Path Configurations
4.5.1 Channel-Path Configuration Overview
4.5.2 Point-to-Point Configuration
39 4.5.3 Fabric Configuration
41 4.5.4 Physical Path
4.5.5 Logical Path
42 4.5.6 Channel-to-Channel Communication
4.5.6.1 Channel-to-Channel Communication Overview
43 4.5.6.2 FC-SB-6 Channel-to-Channel Adapter
4.6 Information Transfer
4.7 Protocols
4.7.1 Protocol Overview
4.7.2 Link Level Protocol
44 4.7.3 Device Level Protocols
4.7.4 Addressing
47 5 FC-FS-4 Link Control
5.1 FC-FS-4 Link Control Overview
5.2 Class of Service
5.3 Buffer-to-Buffer Credit Reclamation
48 5.4 FC-SB-6 Sequences and Exchanges
5.4.1 FC-SB-6 Sequences
5.4.2 FC-SB-6 Exchanges
5.4.2.1 FC-SB-6 Exchange Pairs
49 5.4.2.1.1 General Rules for Initiating Exchange Pairs
5.4.2.1.2 Exchange Pairs for FC-SB-6 Link Control Functions
5.4.2.1.3 Exchange Pairs for Device-Level Functions
50 5.4.2.1.4 Exchange Pair Processing
5.4.2.2 FC-SB-6 Transport Exchanges
5.4.2.2.1 General Rules for Initiating a Transport Exchange
5.4.2.2.2 Transport Exchanges for Device-Level Functions
5.5 FC Frame Header Fields
5.5.1 Frame Header Field Overview
51 5.5.2 R_CTL Field
5.5.3 D_ID and S_ID Fields
5.5.4 CS_CTL
52 5.5.5 TYPE Field
5.5.6 F_CTL Field
5.5.7 SEQ_ID
5.5.8 DF_CTL
5.5.9 SEQ_CNT
5.5.10 OX_ID
5.5.11 RX_ID
53 5.5.12 Parameter Field
55 6 Link-Level Functions
6.1 Link-Level Function Overview
6.2 FC-FS-4 Basic Link Services
6.2.1 Basic Link Services Overview
6.2.2 Abort Sequence
6.3 FC-LS-3 Extended Link Services
6.3.1 Extended Link-Services Overview
6.3.2 F_Port Login
6.3.3 N_Port Login
56 6.3.4 N_Port Logout
6.3.5 Reinstate Recovery Qualifier
6.3.6 Registered State Change Notification
57 6.3.7 State-Change Registration
58 6.3.8 Query Security Attributes
6.3.9 Request Node-Identification Data
6.3.9.1 Request Node-Identification Data Requests and Responses
6.3.9.2 Specific Node-Identification Data
64 6.3.10 Registered Link-Incident Record
6.3.10.1 Registered Link-Incident Record Requests and Responses
65 6.3.10.2 Specific Link-Incident Record for FC-SB-6
68 6.3.11 Link-Incident-Record Registration
6.3.12 Read Link Error Status Block
6.3.13 Registered Fabric Change Notification
69 6.3.14 Process Login
6.3.14.1 Process Login Overview
6.3.14.2 PRLI Request Service Parameter Page
71 6.3.14.3 PRLI Accept Service Parameter Page
72 6.3.15 Process Logout
6.3.15.1 Process Logout Overview
73 6.3.15.2 Channel Process Logout Procedure
74 6.3.15.3 Control Unit Process Logout Procedure
75 6.3.15.4 PRLO Request Logout Parameter Page
6.3.15.5 PRLO Accept Logout Parameter Page
76 6.3.16 Read Exchange Concise
6.4 FC-SB-6 Link-Control Functions
6.4.1 FC-SB-6 Link-Control Function Overview
79 6.4.2 Establish Logical Path
81 6.4.3 Remove Logical Path
82 6.4.4 Logical Path Established
6.4.5 Logical Path Removed
83 6.4.6 Link-Level Acknowledgment
84 6.4.7 Test Initialization
6.4.7.1 Test Initialization Overview
6.4.7.2 Test Initialization Function
86 6.4.7.3 Test Initialization Capability Function
87 6.4.8 Test Initialization Result
6.4.8.1 Test Initialization Result Overview
6.4.8.2 Test Initialization Result Function
90 6.4.8.3 Test Initialization Capability Result Function
91 6.4.9 Link-Level Reject
93 6.4.10 Link-Level Busy
95 7 N_Port Link Initialization
7.1 N_Port Link Initialization Overview
96 7.2 Link-Initialization Procedure
97 7.3 Initialization Process for a Channel
7.3.1 Channel Initialization Overview
7.3.2 Channel Login and Security Attribute Determination
7.3.2.1 Overview
7.3.2.2 Channel F_Port Login
7.3.2.3 Channel Security Attribute Determination
98 7.3.2.4 Channel N_Port Login
7.3.2.4.1 Channel N_Port Login Overview
7.3.2.4.2 Channel N_Port Login: Point-to-Point Configurations
7.3.2.4.3 Channel N_Port Login: Fabric Configurations
7.3.3 Channel Node-Identifier Acquisition
99 7.3.3.1 Channel Neighboring Node ID Acquisition
100 7.3.3.2 Channel Control Unit Node Id Acquisition
7.3.4 Channel State-Change Registration
7.3.5 Channel Link-Incident-Record Registration
101 7.3.6 Process Login
7.3.7 Channel Logical-Path Establishment
102 7.4 Initialization Process for a Control Unit
7.4.1 Control Unit Initialization Overview
7.4.2 Control-Unit Login
103 7.4.2.1 Control Unit F_Port Login
7.4.2.2 Control Unit N_Port Login
7.4.2.2.1 Control Unit N_Port Login Overview
7.4.2.2.2 Control Unit N_Port Login: Point-to-Point Configurations
7.4.2.2.3 Control Unit N_Port Login: Fabric Configurations
104 7.4.3 Control Unit Node-Identifier Acquisition
105 7.4.4 Control Unit State-Change Registration
7.4.5 Process login
7.4.6 Control Unit Logical-Path Establishment
107 8 FC-SB-6 Information Units
8.1 FC-SB-6 Information Unit Overview
8.2 Rules for Sending FC-SB-6 IUs
8.2.1 Overview of Rules for Sending FC-SB-6 Information Units
109 8.2.2 Rules for Device-level Functions in Command Mode
110 8.2.3 Rules for Device-level Functions in Transport Mode
111 8.3 FC-SB-6 IU Structures
115 8.4 FC-SB-6 Header
8.4.1 FC-SB-6 Header Overview
8.4.2 FC-SB-6 Header Format
8.4.3 Channel Image ID
8.4.4 Control-Unit Image ID
116 8.4.5 Device Address
8.5 IU Header
8.5.1 IU Header Format
117 8.5.2 Information-Unit Identifier
8.5.2.1 Information-Unit Identifier Format
8.5.2.2 Address Specific (AS)
8.5.2.3 Supplemental Status (ES)
118 8.5.2.4 DIB Type (T3,T2,T1)
8.5.3 Device-Header Flags
8.5.3.1 Format of Device-Header Flags
119 8.5.3.2 End (E)
8.5.3.3 Chaining (CH)
120 8.5.3.4 Early End (EE)
121 8.5.3.5 CRC Not Provided (CNP)
8.5.4 CCW Number
123 8.5.5 Token
8.6 Device Information Block (DIB) Structure
8.6.1 DIB Structure Overview
124 8.6.2 DIB Header
8.6.2.1 DIB Header Format
8.6.2.2 IU Count
125 8.6.2.3 DIB Data Byte Count
8.6.3 Longitudinal-Redundancy-Check Field
8.6.4 DIB Data Field
8.6.4.1 DIB Data Field Format
126 8.6.4.2 Pad
8.6.5 Cyclic-Redundancy-Check Field
128 8.7 Command DIB Structure
8.7.1 Command DIB Overview
8.7.2 Command Header
8.7.2.1 Command Header Format
8.7.2.2 Command Field
131 8.7.2.3 CCW Control Flag Field
132 8.7.2.4 CCW Count Field
133 8.7.2.5 I/O Priority Field
8.7.2.6 Command-Flag Field
135 8.8 Command-Data DIB Structure
8.9 Data DIB Structure
8.9.1 Data DIB Overview
136 8.9.2 Data Header
8.10 Status DIB
8.10.1 Status DIB Processing
138 8.10.2 Status DIB Structure
139 8.10.3 Status Header
8.10.3.1 Status Header Format
8.10.3.2 Status-Flags Field
142 8.10.3.3 Status Byte
144 8.10.3.4 Status-Parameter Field
145 8.10.3.5 Queue-Time Parameter
149 8.10.3.6 Defer-Time Parameter
152 8.10.4 Supplemental Status Field
8.10.4.1 Supplemental Status Field Overview
8.10.4.2 Sense Information
153 8.11 Control DIB Structure
8.11.1 Control DIB Structure Overview
8.11.2 Control Header
8.11.2.1 Control Header Format
154 8.11.2.2 Control Function and Control Parameters
157 8.11.2.3 Control End
8.11.2.4 Command Response
158 8.11.2.5 Stack Status
8.11.2.6 Cancel IU
159 8.11.2.7 System Reset
8.11.2.8 Selective Reset
161 8.11.2.9 Request Status
8.11.2.10 Device-Level Exception
163 8.11.2.11 Status Accepted
8.11.2.12 Device-Level Acknowledgment (DACK)
164 8.11.2.13 Purge Path
165 8.11.2.14 Purge Path Response
167 8.11.3 Control Payload
8.12 Link-Control DIB Structure
8.12.1 Link-Control DIB Structure Overview
168 8.12.2 Link Header
8.12.2.1 Link Header Format
8.12.2.2 Link Control
169 8.12.2.3 Link-Control Information
8.12.2.4 Channel-to-Channel (CTC) Counter
8.12.3 Link Payload
8.13 Transport Command IU
8.13.1 Transport Command Overview
170 8.13.2 FC-SB-6 Header
8.13.3 Transport Command Header
8.13.3.1 Transport Command Header Format
171 8.13.3.2 L1
8.13.3.3 Read (R)
8.13.3.4 Write (W)
172 8.13.4 Transport Command Area Header
8.13.4.1 TCA Header Format
8.13.4.2 Format Control
8.13.4.3 L2
8.13.4.4 Service Action Code
173 8.13.4.5 I/O Priority Number
174 8.13.5 Transport Command Area
8.13.5.1 Transport Command Area Format
8.13.5.2 DCW Format
175 8.13.5.2.1 Command
177 8.13.5.2.1.1 Interrogate Command
8.13.5.2.1.2 Transfer CRC Offset Block and Transfer Extended CRC Offset Block Commands
179 8.13.5.2.1.3 Transfer TCA Extension (TTE)
180 8.13.5.2.2 Control Flags
182 8.13.5.2.3 Control-Data (CD) Count
8.13.5.2.4 Data Count
8.13.6 Longitudinal Redundancy Check
183 8.13.7 Data Length
8.13.8 Bidirectional Read Data Length
8.14 Transport Data IU
8.14.1 Transport Data IU Overview
184 8.14.2 Transport Data
8.14.3 Pad Bytes
8.14.4 Cyclic-Redundancy-Check
8.14.4.1 Final CRC
8.14.4.2 Intermediate CRC
185 8.14.4.3 COB CRC
8.14.4.4 eCOB CRC
8.14.5 CRC Generation and Checking
8.15 Transport Response IU
8.15.1 Transport Response IU Overview
186 8.15.2 Transport Response IU Structure
8.15.3 FC-SB-6 Header
187 8.15.4 Status
8.15.4.1 Status Area Format
8.15.4.2 Status Flags1
189 8.15.4.3 Maximum CU Exchanges Parameter
8.15.4.4 Response Flags
8.15.4.5 Response Status Code
8.15.4.6 Data Length Residual Count
190 8.15.4.7 Maximum First Transfer Buffer Credit (MFTBC)
8.15.4.8 Response Length
8.15.4.9 Bidirectional Read DL Residual Count
8.15.4.10 Sense Type Code
8.15.4.11 Status Flags2
191 8.15.4.12 Status Flags3
192 8.15.4.13 Device Status
8.15.5 Status LRC
8.15.6 Extended Status
8.15.6.1 Extended Status Format
193 8.15.6.2 Extended Status Length
8.15.6.3 Extended Status Flags
194 8.15.6.4 DCW Offset
8.15.6.5 DCW Residual Count
195 8.15.6.6 I/O Status Extended Status Format
196 8.15.6.6.1 Device Time
8.15.6.6.2 Defer Time
197 8.15.6.6.3 Queue Time
8.15.6.6.4 Device-Busy Time
198 8.15.6.6.5 Device-Active-Only Time
8.15.6.6.6 I/O Status Additional Data
199 8.15.6.7 I/O Exception Extended Status Format
205 8.15.6.7.1 I/O Exception Additional Data
8.15.6.8 Interrogate Extended Status Format
8.15.6.8.1 Format
8.15.6.8.2 Flags
206 8.15.6.8.3 Control-Unit State (CS)
8.15.6.8.4 Device State (DS)
207 8.15.6.8.5 Operation State (OS)
8.15.6.8.6 State-Dependent Information
8.15.6.8.7 Device-Level Identifier
8.15.6.8.8 Device-Dependent Information
8.15.6.9 Extended Status LRC
208 8.16 Transfer Ready IU
8.16.1 Transfer Ready Structure Overview
8.16.2 Relative Offset
8.16.3 Burst Length
8.17 Transport Confirm IU
211 9 Device-Level Functions and Protocols
9.1 Device-Level Operations
9.1.1 Overview of Device-Level Operations
9.1.2 Channel Program Execution
9.2 CCW I/O operations
9.2.1 Initiating a CCW I/O Operation
214 9.2.2 Command Mode Data-Transfer Protocol
9.2.2.1 Command Mode Data-Transfer Protocol Overview
215 9.2.2.2 Command Mode Write Operation
216 9.2.2.3 Command Mode Read Operation
9.2.2.4 Data Chaining
219 9.2.2.5 IU Pacing
221 9.2.2.6 Zero CCW Count
222 9.2.3 Ending a CCW I/O Operation
9.2.3.1 General Rules for ending a CCW I/O Operation
223 9.2.3.2 CCW Supplemental Status
224 9.2.3.3 CCW Residual Count
225 9.2.4 CCW Command Chaining
226 9.2.5 Priority
227 9.3 TCW I/O Operations
9.3.1 Initiating a TCW I/O operation
228 9.3.2 Transport Mode Data Transfer
9.3.2.1 Transport Mode Data Transfer Overview
229 9.3.2.2 Transport Mode Write Data Transfer
230 9.3.2.2.1 First Transfer Ready Disabled Inhibited
231 9.3.2.2.2 First Transfer Buffer Credits
9.3.2.3 Transport Mode Read Data Transfer
232 9.3.2.4 Transport Mode Bidirectional Data Transfer
9.3.3 TCA Processing
9.3.3.1 Device Command Words
235 9.3.3.2 Interrogate Operation
9.3.3.3 DCW Incorrect Length Facility
9.3.4 Ending a TCW I/O Operation
236 9.3.5 Extended Status
9.3.6 Priority
237 9.4 Device-Level Controls
9.4.1 Overview of Device-Level Control Functions
9.4.2 Stacking Status Function
238 9.4.3 Cancel Function
240 9.4.4 System-Reset Function
242 9.4.5 Selective-Reset Function
243 9.4.6 Request-Status Function
244 9.4.7 Device-Level-Exception Function
9.4.8 Status-Acceptance Function
245 9.4.9 Device-Level-Acknowledgment Function
9.4.10 Control-Unit-Busy Condition
246 9.4.11 Confirm Completion Function
9.4.12 Transport Mode ABTS Function
9.5 Error Handling at the Device Level
9.5.1 Purge Path Function
247 9.5.2 Command Retry
9.5.2.1 Command Mode Command Retry
249 9.5.2.2 Transport Mode Command Retry
250 9.5.3 Channel-Initiated Recovery Procedures
9.5.3.1 Overview of Channel-Initiated Recovery Procedures
251 9.5.3.2 Channel-Initiated-Retry Request
252 9.5.3.3 Channel-Initiated-Unit-Check Request
253 9.5.4 Address-Exception Condition
9.5.4.1 Command Mode Address-Exception Condition
254 9.5.4.2 Transport Mode Address-Exception Condition
9.5.5 REC Function
9.6 Resetting Event
256 9.7 Special Functions
9.7.1 Path Groups
257 9.7.2 Dynamic Reconnection
259 10 Link Error Detection
10.1 Link Error Detection Overview
10.2 FC-SB-6 Timeouts
10.2.1 Overview of FC-SB-6 Timeouts
10.2.2 FC-SB-6 Protocol Timeout Value
260 10.2.3 FC-SB-6 Timeout Value
10.2.4 Logical Path Timeout Value
261 10.2.5 Cancel Function Timeout Value
10.2.6 Transport Command Timeout Value
10.2.7 Transport Command Secondary Timeout Value
262 10.2.8 Interrogate Timeout Value
10.2.9 Process Logout Timeout Value
10.2.10 Exchange Quiesce Timeout Value
10.2.11 REC Timeout Value
10.3 FC-SB-6 Link Failure
10.4 Logical Path Timeout Error
263 10.5 FC-SB-6 Exchange Error
10.5.1 FC-SB-6 Exchange Error Overview
10.5.2 FC-SB-6 Protocol Timeout
10.5.3 FC-SB-6 IU Integrity Error
10.5.3.1 Overview of FC-SB-6 IU Integrity Errors
10.5.3.2 FC-SB-6 Length Error
264 10.5.3.3 LRC Error
10.5.3.4 FC-SB-6 CRC Error
10.5.3.4.1 Command Mode CRC Error
265 10.5.3.4.2 Transport Mode CRC Error
10.5.3.5 IU Count Error
10.5.4 FC-SB-6 Protocol Errors
10.5.4.1 FC-SB-6 Protocol Error Overview
10.5.4.2 Link Level Protocol Errors
266 10.5.4.3 Device Level Protocol Errors
10.5.5 Receive ABTS
10.5.6 Cancel Function Timeout Error
10.5.7 Abnormal Termination of Exchange
10.6 Logical-Path-Not-Established Error
10.7 Test Initialization Result Error
267 10.8 Transport Operation Error
10.9 Transport Error
10.9.1 Transport Error Overview
10.9.2 Transport Command IU Integrity Error
10.9.3 TCH Content error
10.9.4 TCCB Content error
10.9.5 Second I/O Operation Error
268 10.10 Interrogate Operation Error
10.11 REC Error
269 11 Error Recovery Actions
11.1 Error Recovery Action Overview
272 11.2 Link-Level Recovery
11.2.1 Link-Level Recovery Overview
11.2.2 Recovery for an FC-SB-6 Link Failure
11.2.3 Logical Path Timeout Error
273 11.2.4 Recovery for an FC-SB-6 Offline Condition
11.2.5 Recovery for an FC-FS-4 Link Failure Condition
11.2.6 Recovery for an FC-SB-6 Exchange Error
274 11.2.7 Recovery for a Logical-Path-Not-Established Error
275 11.2.8 Recovery for Link-Level Reject, P_RJT, and F_RJT
276 11.2.9 Recovery for a Test-Initialization-Result Error
11.2.10 Recovery for a Transport Operation Error
11.2.11 Recovery for a Transport Error
277 11.2.12 Recovery for an Interrogate Operation Error
11.2.13 Recovery for a REC Error
11.3 Device-Level Recovery
11.3.1 Device-Level Recovery Overview
11.3.2 Errors That Cause the Removal of a Logical Path
11.3.2.1 Overview of Errors That Cause the Removal of a Logical Path
278 11.3.2.2 Recovery at the Channel (Logical Path Removed)
11.3.2.3 Recovery at the Control Unit (Logical Path Removed)
11.3.3 Errors that Do not Cause the Removal of a Logical Path
11.3.3.1 Overview of Errors that Do not Cause the Removal of a Logical Path
279 11.3.3.2 Recovery at the Channel (Logical Path not Removed)
11.3.3.2.1 Overview of Recovery at the Channel (Logical Path not Removed)
11.3.3.2.2 Recovery at the Channel for Command Mode
280 11.3.3.2.3 Recovery at the Channel for Transport Mode
11.3.3.3 Recovery at the Control Unit (Logical Path not Removed)
11.3.3.3.1 Recovery at the Control Unit for Command Mode
281 11.3.3.3.2 Recovery at the Control Unit for Transport Mode
283 Annex A: Fabric Address Assignment
A.1 Background
A.2 Description
A.2.1 Fabric Login
A.2.2 Single-byte Configuration Records
A.2.3 Two-byte Configuration Records
285 Annex B: Correlation of Exchanges of an Exchange Pair
B.1 Correlation of Exchanges
B.1.1 Overview of Exchange Correlation
B.1.2 Correlation of Exchanges by a Channel
B.1.3 Correlation of Exchanges by a Control Unit
287 Annex C: LRC Calculation
C.1 LRC Calculation Procedure
C.2 LRC Calculation Example
289 Annex D: Status/Chaining Summary
D.1 Requirements for Sending Status and Chaining
291 Annex E: Bibliography
E.1 Informative Reference

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