Network File System (NFS) Direct Data Placement (RFC5667)
Original Publication Date: 2010-Jan-01
Included in the Prior Art Database: 2010-Feb-10
Internet Society Requests For Comment (RFCs)
T. Talpey: AUTHOR [+1]
The Remote Direct Memory Access (RDMA) Transport for Remote Procedure Call (RPC) [RFC5666] allows an RPC client application to post buffers in a Chunk list for specific arguments and results from an RPC call. The RDMA transport header conveys this list of client buffer addresses to the server where the application can associate them with client data and use RDMA operations to transfer the results directly to and from the posted buffers on the client. The client and server must agree on a consistent mapping of posted buffers to RPC. This document details the mapping for each version of the NFS protocol [RFC1094] [RFC1813] [RFC3530] [RFC5661].
Internet Engineering Task Force (IETF) T. Talpey Request for Comments: 5667 Unaffiliated Category: Standards Track B. Callaghan ISSN: 2070-1721 Apple January 2010
Network File System (NFS) Direct Data Placement
This document defines the bindings of the various Network File System (NFS) versions to the Remote Direct Memory Access (RDMA) operations supported by the RPC/RDMA transport protocol. It describes the use of direct data placement by means of server-initiated RDMA operations into client-supplied buffers for implementations of NFS versions 2, 3, 4, and 4.1 over such an RDMA transport.
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 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc5667.
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Callaghan Standards Track [Page 1]
RFC 5667 NFS Direct Data Placement January 2010
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