From owner-svn-doc-head@freebsd.org Tue Jul 14 15:49:21 2015 Return-Path: Delivered-To: svn-doc-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B68C29A11F3; Tue, 14 Jul 2015 15:49:21 +0000 (UTC) (envelope-from wblock@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 8B107D42; Tue, 14 Jul 2015 15:49:21 +0000 (UTC) (envelope-from wblock@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.70]) by repo.freebsd.org (8.14.9/8.14.9) with ESMTP id t6EFnLHM074512; Tue, 14 Jul 2015 15:49:21 GMT (envelope-from wblock@FreeBSD.org) Received: (from wblock@localhost) by repo.freebsd.org (8.14.9/8.14.9/Submit) id t6EFnLM1074511; Tue, 14 Jul 2015 15:49:21 GMT (envelope-from wblock@FreeBSD.org) Message-Id: <201507141549.t6EFnLM1074511@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: wblock set sender to wblock@FreeBSD.org using -f From: Warren Block Date: Tue, 14 Jul 2015 15:49:20 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r46971 - head/en_US.ISO8859-1/htdocs/news/status X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-head@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for the doc tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Jul 2015 15:49:21 -0000 Author: wblock Date: Tue Jul 14 15:49:20 2015 New Revision: 46971 URL: https://svnweb.freebsd.org/changeset/doc/46971 Log: Add Sagi Grimberg 's report on iSER. Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-04-2015-06.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-04-2015-06.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2015-04-2015-06.xml Tue Jul 14 15:26:14 2015 (r46970) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-04-2015-06.xml Tue Jul 14 15:49:20 2015 (r46971) @@ -1111,4 +1111,83 @@ utilize PCID.

+ + + Mellanox iSCSI Extensions For RDMA (iSER) Support + + + + + Max + Gurtovoy + + maxg@mellanox.com + + + + + Sagi + Grimberg + + sagig@mellanox.com + + + + + + + + +

Building on the new in-kernel iSCSI initiator stack released + in &os; 10.0 and the recently added iSCSI offload interface, + Mellanox Technologies has begun developing iSCSI extensions + for RDMA (iSER) initiator support to enable efficient data + movement using the hardware offload capabilities of Mellanox's + 10, 40, 56 and 100 gigabit IB/Ethernet adapters.

+ +

Remote Direct Memory Access (RDMA) have been shown to have a + great value for storage applications. RDMA infrastructure + provides benefits such as Zero-Copy, CPU offload, Reliable + transport, Fabric consolidation, and many more. The iSER + protocol eliminates some of the bottlenecks in the traditional + iSCSI/TCP stack, provides low latency and high throughput, and + is well suited for latency aware workloads.

+ +

This work includes a new ICL module that implements the iSER + initiator. The iSCSI stack is slightly modified to support + some extra features such as asynchronous IO completions, + unmapped data buffers, and data-transfer offloads. The user + will be able to choose iSER as the iSCSI transport with + iscsictl.

+ +

The project is in its beta phase. Recent additions + include:

+ +
    +
  • Rebased on top of 11-CURRENT (r284921)
    • +
  • Added discovery over iSER support
    • +
  • HA and automatic session re-establishment support
    • +
  • Split iSER from iSCSI module
    • +
+ +

In addition, the iser driver has been and continues + to be thoroughly tested. The test suite includes:

+ +
    +
  • traffic
    • +
  • FS tests
    • +
  • compliance tests
    • +
  • traffic failover/failback
    • +
  • session recovery
    • +
  • dynamic module load/unload
    • +
+ +

The code is ready for inclusion and will be released under + the BSD license.

+ + + + Mellanox Technologies + +