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1、INTERNATIONAL STANDARD ISO/IEC 14165-211 First edition 1999-02 Information technology Fibre Channel Part 211: Mapping to HIPPI-FP (FC-FP) Reference number ISO/IEC 14165-211:1999(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical
2、 Standards 1/9972545001 Not for Resale, 04/21/2007 02:20:58 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2
3、007 02:20:58 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO/IEC 14165-211 First edition 1999-02 Information technology Fibre Channel Part 211: Mapping to HIPPI-FP (FC-FP) ISO/IEC 1999 All rights reserved. Unless otherwise specified, no part of th
4、is publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. ISO/IEC Copyright Office Case postale 56 CH-1211 Genve 20 Switzerland PRICE CODE E For price, see current catalo
5、gue Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:20:58 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 14165-211 ISO/IEC:1999 Contents Page Fore
6、word.3 1 Scope.4 2 Normative references 4 3 Definitions and conventions.4 3.1 Definitions4 3.2 Editorial conventions4 4 Information transmission5 4.1 Source ULP.5 4.2 Source FC-FP and Fibre Channel 5 .4.3 Destination Fibre Channel and FC-FP.7 4.4 Fibre Channel interface failure7 Annex A Relationship
7、 to FC-PH service interface 8 A.1 General.8 A.2 FC_PH_SEQUENCE.request.8 A.3 FC_PH_SEQUENCE_TAG.indication9 A.4 FC_PH_SEQUENCE.indication .9 A.5 FC_PH_SEQUENCE.confirmation.10 Figures Figure 1 HIPPI-FP packet format7 Figure A.1 FC-PH service primitives.8 Table Table 1 HIPPI-FP Information Units6 Cop
8、yright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:20:58 MDTNo reproduction or networking permitted without license from IHS -,-,- 14165-211 ISO/IEC:1999 3 Foreword ISO (the Interna
9、tional Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees establishe
10、d by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the fiel
11、d of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75% of the
12、 national bodies casting a vote. International Standard ISO/IEC 14165-211 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information Technology, Subcommittee SC 25, Interconnection of Information Technology Equipment. This part of ISO/IEC 14165 defines the frame format and protocol definit
13、ions required to transfer information for upper-layer protocols that use the High-Performance Parallel Interface Framing Protocol (HIPPI-FP) when using a lower-layer serial link interface operating according to the Fibre Channel Physical and Signaling Interface (FC-PH) and Fibre Channel Enhanced Phy
14、sical (FC-EP) requirements. For example, the HIPPI upper-layer protocols would use FC-FP when the underlying physical layer is Fibre Channel, and would use HIPPI-FP when the underlying physical layer is HIPPI. In this document the term Fibre Channel refers to the FC-PH and FC-EP entities only. In re
15、lation to the Fibre Channel structures defined in FC-PH, this document, FC-FP, represents an FC-4. Characteristics of FC-FP include: Encapsulation of HIPPI-FP packets, including the HIPPI-FP header, in Fibre Channel Information Units and Exchanges; Separation of the HIPPI-FP D1_Data_Set and D2_Data_
16、Set. ISO/IEC 14165 will consist of the following parts, under the general title Information technology Fibre Channel: Part 111: Physical and Signaling Interface (FC-PH) Part 112: 2nd Generation Physical Interface (FC-PH-2) Part 113: 3rd Generation Physical Interface (FC-PH-3) Part 121: Arbitrated Lo
17、op (FC-AL) Part 131: Switched Fabric and Switch Control Requirements (FC-SW) Part 141: Fabric Generic Requirements (FC-FG) Part 211: Mapping to HIPPI-FP (FC-FP) Part 221: Single-Byte Command Code Sets (FC-SB) Part 231: Link Encapsulation (FC-LE) Part 411: Generic Services (FC-GS) Annex A is not an i
18、ntegral part of this standard, but is included for information only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:20:58 MDTNo reproduction or networking permitted without l
19、icense from IHS -,-,- 4 14165-211 ISO/IEC:1999 Information technology Fibre Channel Part 211: Mapping to HIPPI-FP (FC-FP) 1 Scope This part of ISO/IEC 14165 provides a mapping for upper-layer protocols that use the High-Performance Parallel Interface Framing Protocol (HIPPI-FP), to use the Fibre Cha
20、nnel Physical and Signaling Interface (FC-PH) as the lower-layer transfer mechanism. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO/IEC 14165. At the time of publication, the editions indicated were v
21、alid. All standards are subject to revision, and parties to agreements based on this part of ISO/IEC 14165 are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of IEC and ISO maintain registers of currently valid International Stan
22、dards. ISO/IEC 11518-2:1996 Information technology High-Performance Parallel Interface Part 2: framing protocol (HIPPI-FP). ISO/IEC 14165-111 Information technology Fibre Channel Part 111: Physical and Signalling Interface (FC-PH). ISO/IEC 14165-112 Information technology Fibre Channel Part 112: 2nd
23、 Generation Physical Interface (FC-PH-2). ISO/IEC 14165-113 Information technology Fibre Channel Part 113: 3rd Generation Physical Interface (FC-PH-3). 3 Definitions and conventions 3.1 Definitions For the purposes of this part of ISO/IEC 14165, the following definitions apply. 3.1.1 connection cont
24、rol information (CCI): A parameter that identifies the destination of the IU. 3.1.2 Fibre Channel: The collective set of functions, operations, parameters, etc., defined in ISO/IEC 14165-111, ISO/IEC 14165-112, and ISO/IEC 14165-3 (Fibre Channel Physical and Signalling Interface (FC-PH), 2nd Generat
25、ion Physical Interface (FC-PH-2) and 3rd Generation Physical Interface (FC-PH-3) respectively). 3.1.3 information unit (IU): The constructs which define the payloads carried over Fibre Channel. The IUs define not only the data which is transparent to Fibre Channel, but also the use of some Fibre Cha
26、nnel control information and constructs. 3.1.4 upper-layer protocol (ULP): A protocol immediately above the FC-FP. 3.2 Editorial conventions In this part of ISO/IEC 14165, a number of conditions, mechanisms, parameters, or similar terms are printed with the first letter of each word in uppercase and
27、 the rest lowercase (e.g., Exchange, Class). Any lowercase uses of these words have the normal technical English meaning. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:20:58
28、 MDTNo reproduction or networking permitted without license from IHS -,-,- 14165-211 ISO/IEC:1999 5 4 Information transmission 4.1 Source ULP and FC-FP As defined in ISO/IEC 11518-2, a ULP user passes the following information to HIPPI-FP to request a data transfer. The same information shall be use
29、d by FC-FP. If a difference arises between the HIPPI-FP parameters referenced in this document and those specified in ISO/IEC 11518-2, then ISO/IEC 11518-2 (HIPPI-FP) takes precedence. CCI Connection control information (destination for the information) ULP-id Identifies the Destination ULP D1_Size
30、The length, in bytes, of the D1_Data_Set. The maximum size is 1016 bytes. D1_Data_Set The information to be marked as control information and delivered ahead of the D2_Data_Set. D2_Size The length, in bytes, of the D2_Data_Set. The maximum size is 4 294 967 294 bytes (232 2) bytes. The HIPPI-FP capa
31、bility of transferring an indeterminate amount of data by setting D2_Size to hexadecimal FFFFFFFF is supported by FC-FP. (See 4.2.1.6.) D2_Data_Set The information to be marked as user data and delivered after the D1_Data_Set. Keep_Connection Says that another ULP data set with the same routing info
32、rmation is coming, and the physical connection should be maintained if possible. Start_D2_on_Burst_Boundary Controls whether the D2_Data_Set starts on a burst boundary or not. Using these parameters, a HIPPI-FP packet header, as specified in ISO/IEC 11518-2, shall be constructed. The HIPPI-FP packet
33、 format is shown in figure 1 for reference. The D1_Area_Size shall be equal to the D1_Size (rounded up to an integral multiple of eight bytes). The HIPPI-FP packet, including the Header_Area, D1_Area, and D2_Area, shall then be passed to the Fibre Channel as one, or two, IU(s) for transmission. (See
34、 4.2.1.2.) NOTE HIPPI-FP may only use a short burst, i.e., 1024 bytes or 2048 bytes, for either the first or last burst of a packet. FC-FP does not have an equivalent restriction, and may use frame sizes to match the actual sizes of the data sets. 4.2 Source FC-FP and Fibre Channel The relationship
35、between the HIPPI-FP parameters and Fibre Channel entities is as follows: The CCI shall be used to derive the D_ID The HIPPI-FP packet, consisting of the Header_Area, D1_Area, and D2_Area, shall be sent as one or two Information Units (IUs). The Header_Area and D1_Area, as shown in figure 1, shall b
36、e sent as Information_Set_1 (I_S_1) with Information Category = Unsolicited Control. The maximum size is 1024 bytes. The D2_Area, as shown in figure 1, shall be sent as Information_Set_2 (I_S_2) with Information Category = Unsolicited Data. If Keep_Connection = 1, then the Fibre Channel should maint
37、ain a Class 1 connection when Class 1 is used. If Keep_Connection = 0, then a Class 1 connection may be released. NOTE The HIPPI Keep_Connection function is strictly advisory, it is not a mandate. The source FC-FP shall notify the source ULP about the transmission status. The ULP will not issue anot
38、her transfer request until this status is received. Status possibilities are: Accept The FC-FP has accepted the packet (IU) for transmission. Note that this indication may be issued before all of the IU is transmitted. Reject The FC-FP cannot deliver the packet (IU) because of a detected error. Time
39、out The FC-FP could not deliver the packet (IU) within some timeout period. The suggested default value of this timeout is 10 s. 4.2.1 Mandatory Fibre Channel functions 4.2.1.1 Exchange A Fibre Channel Exchange is equivalent to a HIPPI connection. Class 1 and Class 2 Exchanges are unidirectional for
40、 data transfers, with the reverse direction available for Abort operations. 4.2.1.2 Information unit (IU) The IUs used to transfer HIPPI-FP packet information are shown in table 1. Mandatory IUs H2 and H3 package a HIPPI-FP packet in two separate IUs within the same Exchange. A HIPPI-FP packet with
41、no D2_Area shall be transferred with an H2 IU. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:20:58 MDTNo reproduction or networking permitted without license from IHS -,-,-
42、6 14165-211 ISO/IEC:1999 Optional IU H1 packages a complete HIPPI-FP packet into one IU. H1 can only be used if the N_Ports support multiple Information Categories per Sequence. 4.2.1.3 Type code The Type code shall equal HIPPI-FP. 4.2.1.4 Class of service Class 1 or Class 2 may be used with FC-FP.
43、Class 3 shall not be used. 4.2.1.5 Exchange Reassembly More than one Fibre Channel N_Port may be used for higher data rates, i.e., Exchange_Reassembly may be used. The FC-FP shall specify to Fibre Channel if more than one N_Port may be used to transmit the IU(s). 4.2.1.6 Relative Offset Relative Off
44、set may be used in an implementation- dependent manner to collect or distribute data in the destination storage (reassembly) area. When transferring an indeterminate size D2_Data_Set, whose size may exceed (232 2) bytes, then the Relative Offset shall be set to hexadecimal FFFFFFFF. (See 18.11 of IS
45、O/IEC 11518-2.) NOTE The term “Relative Offset“ relates to a Fibre Channel parameter. The terms “Offset“ and “D2_Offset“ relate to HIPPI-FP parameters. 4.2.2 Optional headers 4.2.2.1 Expiration/Security Header The use of this header is both implementation and system dependent, and is beyond the scop
46、e of this document. (See ISO/IEC 14165-111 for usage of this header.) 4.2.2.2 Network Header The use of this header is both implementation and system dependent, and is beyond the scope of this document. (See ISO/IEC 14165-111 for usage of this header.) 4.2.2.3 Association Header The use of this head
47、er is both implementation and system dependent, and is beyond the scope of this document. (See ISO/IEC 14165-111 for usage of this header.) 4.2.2.4 Device Header FC-FP does not use the Device Header. Table 1 HIPPI-FP Information Units IU Name CategoryContentCategoryContentFML Sequence Initiative Man
48、datory / Optional H1 Unsolicited Control I_S_1 (HIPPI-FP Header and D1_Area) Unsolicited Data I_S_2 (HIPPI-FP D2_Area) First, or Middle, or Last HeldOptional H2 Unsolicited Control I_S_1 (HIPPI-FP Header and D1_Area) First, or Middle, or Last HeldMandatory H3 Unsolicited Data I_S_2 (HIPPI-FP D2_Area) Middle or Last HeldMandatory Copyright International Organization for Standardization Provi