RPC-over-RDMA Version Two Protocol
draft-cel-nfsv4-rpcrdma-version-two-03

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Network File System Version 4                              C. Lever, Ed.
Internet-Draft                                                    Oracle
Intended status: Standards Track                               D. Noveck
Expires: June 4, 2017                                                HPE
                                                        December 1, 2016

                   RPC-over-RDMA Version Two Protocol
                 draft-cel-nfsv4-rpcrdma-version-two-03

Abstract

   This document specifies an improved protocol for conveying Remote
   Procedure Call (RPC) messages on physical transports capable of
   Remote Direct Memory Access (RDMA), based on RPC-over-RDMA Version
   One.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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Copyright Notice

   Copyright (c) 2016 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
   (http://trustee.ietf.org/license-info) in effect on the date of

Lever & Noveck            Expires June 4, 2017                  [Page 1]
Internet-Draft          RDMA Transport for RPC V2          December 2016

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Inline Threshold  . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Motivation  . . . . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Default Values  . . . . . . . . . . . . . . . . . . . . .   5
   3.  Remote Invalidation . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Backward-Direction Remote Invalidation  . . . . . . . . .   6
   4.  Protocol Extensibility  . . . . . . . . . . . . . . . . . . .   6
     4.1.  Optional Features . . . . . . . . . . . . . . . . . . . .   6
     4.2.  Message Direction . . . . . . . . . . . . . . . . . . . .   7
     4.3.  Documentation Requirements  . . . . . . . . . . . . . . .   7
   5.  Transport Properties  . . . . . . . . . . . . . . . . . . . .   8
     5.1.  Introduction To Transport Properties  . . . . . . . . . .   8
     5.2.  Basic Transport Properties  . . . . . . . . . . . . . . .  11
     5.3.  New Operations  . . . . . . . . . . . . . . . . . . . . .  15
     5.4.  Extensibility . . . . . . . . . . . . . . . . . . . . . .  19
   6.  XDR Protocol Definition . . . . . . . . . . . . . . . . . . .  21
     6.1.  Code Component License  . . . . . . . . . . . . . . . . .  22
     6.2.  RPC-Over-RDMA Version Two XDR . . . . . . . . . . . . . .  24
   7.  Protocol Version Negotiation  . . . . . . . . . . . . . . . .  30
     7.1.  Server Does Support RPC-over-RDMA Version Two . . . . . .  31
     7.2.  Server Does Not Support RPC-over-RDMA Version Two . . . .  31
     7.3.  Client Does Not Support RPC-over-RDMA Version Two . . . .  31
     7.4.  Security Considerations . . . . . . . . . . . . . . . . .  31
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  32
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  32
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  32
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  32
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .  33
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  33

1.  Introduction
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