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
Last updated 2017-10-25
Stream IETF
Formats plain text pdf html 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
Show full document text