From owner-svn-src-head@freebsd.org Wed Jun 8 07:33:18 2016 Return-Path: Delivered-To: svn-src-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 C4610B6E995; Wed, 8 Jun 2016 07:33:18 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::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 87395165E; Wed, 8 Jun 2016 07:33:18 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u587XH9Z007555; Wed, 8 Jun 2016 07:33:17 GMT (envelope-from trasz@FreeBSD.org) Received: (from trasz@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u587XHpb007552; Wed, 8 Jun 2016 07:33:17 GMT (envelope-from trasz@FreeBSD.org) Message-Id: <201606080733.u587XHpb007552@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: trasz set sender to trasz@FreeBSD.org using -f From: Edward Tomasz Napierala Date: Wed, 8 Jun 2016 07:33:17 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r301585 - head/share/man/man4 X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Jun 2016 07:33:18 -0000 Author: trasz Date: Wed Jun 8 07:33:17 2016 New Revision: 301585 URL: https://svnweb.freebsd.org/changeset/base/301585 Log: Add iser(4) manual page. Obtained from: Mellanox Technologies MFC after: 1 month Added: head/share/man/man4/iser.4 (contents, props changed) Modified: head/share/man/man4/Makefile head/share/man/man4/iscsi.4 Modified: head/share/man/man4/Makefile ============================================================================== --- head/share/man/man4/Makefile Wed Jun 8 06:33:55 2016 (r301584) +++ head/share/man/man4/Makefile Wed Jun 8 07:33:17 2016 (r301585) @@ -863,7 +863,7 @@ _dtrace_udp.4= dtrace_udp.4 .if ${MK_ISCSI} != "no" MAN+= iscsi.4 MAN+= iscsi_initiator.4 - +MAN+= iser.4 .endif .if ${MK_TESTS} != "no" Modified: head/share/man/man4/iscsi.4 ============================================================================== --- head/share/man/man4/iscsi.4 Wed Jun 8 06:33:55 2016 (r301584) +++ head/share/man/man4/iscsi.4 Wed Jun 8 07:33:17 2016 (r301585) @@ -107,6 +107,7 @@ While the connection is down all input/o retried after the connection is reestablished. .El .Sh SEE ALSO +.Xr iser 4 , .Xr iscsi.conf 5 , .Xr iscsictl 8 , .Xr iscsid 8 Added: head/share/man/man4/iser.4 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/share/man/man4/iser.4 Wed Jun 8 07:33:17 2016 (r301585) @@ -0,0 +1,93 @@ +.\" Copyright (c) 2015, Mellanox Technologies, Inc. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" +.\" $FreeBSD$ +.Dd June 6, 2016 +.Dt ISER 4 +.Os +.Sh NAME +.Nm iser +.Nd iSCSI Extensions for RDMA driver +.Sh SYNOPSIS +To compile this driver into the kernel, +place the following line in the +kernel configuration file: +.Bd -ragged -offset indent +.Cd "device iser" +.Ed +.Pp +Alternatively, to load the driver as a +module at boot time, place the following line in +.Xr loader.conf 5 : +.Bd -literal -offset indent +iser_load="YES" +.Ed +.Sh DESCRIPTION +The +.Nm +(iSCSI Extensions for RDMA) initiator driver extends the iSCSI protocol to RDMA. +It permits data to be transferred directly into and out of SCSI buffers +without intermediate data copies. +iSER uses the RDMA protocol suite to supply higher bandwidth for +block storage transfers (zero copy behavior). To that fact, it eliminates the +TCP/IP processing overhead while preserving the compatibility with iSCSI protocol. +The initiator is the iSCSI/iSER client, which connects to an iSCSI/iSER target, +providing local access to a remote block device. +The userland component is provided by +.Xr iscsid 8 +and both the kernel and userland are configured using +.Xr iscsictl 8 . +.Sh SYSCTL VARIABLES +The following variables are available as both +.Xr sysctl 8 +variables and +.Xr loader 8 +tunables: +.Bl -tag -width indent +.It Va kern.iser.debug +Verbosity level for log messages from the +.Nm +driver. +Set to 0 to disable logging or 1 to warn about potential problems. +Larger values enable info and debugging output. +Defaults to 0. +.El +.Sh SEE ALSO +.Xr iscsi 4 , +.Xr iscsi.conf 5 , +.Xr iscsictl 8 , +.Xr iscsid 8 +.Sh HISTORY +The +.Nm +subsystem first appeared in +.Fx 11.0 . +.Sh AUTHORS +The +.Nm +subsystem was developed by +.An Max Gurtovoy Aq Mt maxg@mellanox.com +and +.An Sagi Grimberg Aq Mt sagig@mellanox.com +under sponsorship from Mellanox Technologies.