Network File System (NFS) Upper-Layer Binding to RPC-over-RDMA Version 1
RFC 8267
| Document | Type |
RFC - Proposed Standard
(October 2017; No errata)
Obsoletes RFC 5667
|
|
|---|---|---|---|
| Author | Chuck Lever | ||
| Last updated | 2017-10-25 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Spencer Shepler | ||
| Shepherd write-up | Show (last changed 2017-07-14) | ||
| IESG | IESG state | RFC 8267 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Spencer Dawkins | ||
| Send notices to | Spencer Shepler <spencer.shepler@gmail.com> | ||
| IANA | IANA review state | IANA OK - Actions Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) C. Lever Request for Comments: 8267 Oracle Obsoletes: 5667 October 2017 Category: Standards Track ISSN: 2070-1721 Network File System (NFS) Upper-Layer Binding to RPC-over-RDMA Version 1 Abstract This document specifies Upper-Layer Bindings of Network File System (NFS) protocol versions to RPC-over-RDMA version 1, thus enabling the use of Direct Data Placement. This document obsoletes RFC 5667. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at https://www.rfc-editor.org/info/rfc8267. Lever Standards Track [Page 1] RFC 8267 NFS on RPC-over-RDMA Version 1 October 2017 Copyright Notice Copyright (c) 2017 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. Lever Standards Track [Page 2] RFC 8267 NFS on RPC-over-RDMA Version 1 October 2017 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Requirements Language . . . . . . . . . . . . . . . . . . . . 4 3. Reply Size Estimation . . . . . . . . . . . . . . . . . . . . 5 3.1. Short Reply Chunk Retry . . . . . . . . . . . . . . . . . 5 4. Upper-Layer Binding for NFS Versions 2 and 3 . . . . . . . . 6 4.1. Reply Size Estimation . . . . . . . . . . . . . . . . . . 7 4.2. RPC Binding Considerations . . . . . . . . . . . . . . . 7 5. Upper-Layer Bindings for NFS Versions 2 and 3 Auxiliary Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5.1. MOUNT, NLM, and NSM Protocols . . . . . . . . . . . . . . 8 5.2. NFSACL Protocol . . . . . . . . . . . . . . . . . . . . . 8 6. Upper-Layer Binding for NFS Version 4 . . . . . . . . . . . . 8 6.1. DDP-Eligibility . . . . . . . . . . . . . . . . . . . . . 8 6.2. Reply Size Estimation . . . . . . . . . . . . . . . . . . 9 6.3. RPC Binding Considerations . . . . . . . . . . . . . . . 10 6.4. NFS COMPOUND Requests . . . . . . . . . . . . . . . . . . 10 6.5. NFS Callback Requests . . . . . . . . . . . . . . . . . . 13 6.6. Session-Related Considerations . . . . . . . . . . . . . 14 6.7. Transport Considerations . . . . . . . . . . . . . . . . 15 7. Extending NFS Upper-Layer Bindings . . . . . . . . . . . . . 16 8. Security Considerations . . . . . . . . . . . . . . . . . . . 16 9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17 10. References . . . . . . . . . . . . . . . . . . . . . . . . . 17 10.1. Normative References . . . . . . . . . . . . . . . . . . 17 10.2. Informative References . . . . . . . . . . . . . . . . . 18 Appendix A. Changes Since RFC 5667 . . . . . . . . . . . . . . . 20 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 21 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 21 Lever Standards Track [Page 3]Show full document text