RPC-over-RDMA Version 2 Protocol
draft-cel-nfsv4-rpcrdma-version-two-05

Document Type Active Internet-Draft (individual)
Last updated 2017-07-17
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network File System Version 4                              C. Lever, Ed.
Internet-Draft                                                    Oracle
Intended status: Standards Track                               D. Noveck
Expires: January 18, 2018                                         NetApp
                                                           July 17, 2017

                    RPC-over-RDMA Version 2 Protocol
                 draft-cel-nfsv4-rpcrdma-version-two-05

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 1.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 18, 2018.

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
   (http://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.

Lever & Noveck          Expires January 18, 2018                [Page 1]
Internet-Draft          RDMA Transport for RPC V2              July 2017

   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  Inline Threshold  . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
     3.2.  Motivation  . . . . . . . . . . . . . . . . . . . . . . .   5
     3.3.  Default Values  . . . . . . . . . . . . . . . . . . . . .   5
   4.  Remote Invalidation . . . . . . . . . . . . . . . . . . . . .   6
     4.1.  Backward-Direction Remote Invalidation  . . . . . . . . .   6
   5.  Protocol Extensibility  . . . . . . . . . . . . . . . . . . .   7
     5.1.  Optional Features . . . . . . . . . . . . . . . . . . . .   7
     5.2.  Message Direction . . . . . . . . . . . . . . . . . . . .   7
     5.3.  Documentation Requirements  . . . . . . . . . . . . . . .   8
   6.  Transport Properties  . . . . . . . . . . . . . . . . . . . .   9
     6.1.  Introduction to Transport Properties  . . . . . . . . . .   9
     6.2.  Basic Transport Properties  . . . . . . . . . . . . . . .  12
     6.3.  New Operations  . . . . . . . . . . . . . . . . . . . . .  15
     6.4.  Extensibility . . . . . . . . . . . . . . . . . . . . . .  20
   7.  XDR Protocol Definition . . . . . . . . . . . . . . . . . . .  21
     7.1.  Code Component License  . . . . . . . . . . . . . . . . .  22
     7.2.  RPC-Over-RDMA Version 2 XDR . . . . . . . . . . . . . . .  24
   8.  Protocol Version Negotiation  . . . . . . . . . . . . . . . .  31
     8.1.  Server Does Support RPC-over-RDMA Version 2 . . . . . . .  32
     8.2.  Server Does Not Support RPC-over-RDMA Version 2 . . . . .  32
     8.3.  Client Does Not Support RPC-over-RDMA Version 2 . . . . .  32
     8.4.  Security Considerations . . . . . . . . . . . . . . . . .  32
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  33
Show full document text