1 '\" te
   2 .\" Copyright (c) 2009, Sun Microsystems, Inc. All Rights Reserved
   3 .\" Copyright 2014, Nexenta Systems, Inc. All Rights Reserved
   4 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   5 .\" or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License. When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add
   6 .\" the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
   7 .TH MPT_SAS 7D "Apr 24, 2014"
   8 .SH NAME
   9 mpt_sas \- SAS-2/3 host bus adapter driver
  10 .SH SYNOPSIS
  11 .sp
  12 .in +2
  13 .nf
  14 scsi@unit-address
  15 .fi
  16 .in -2
  17 
  18 .SH DESCRIPTION
  19 .sp
  20 .LP
  21 The \fBmpt_sas\fR host bus adapter driver is a nexus driver that supports the
  22 LSI SAS200x/2x08 and SAS300x/3x08 series of chips. These chips support SAS/SATA
  23 interfaces, including tagged and untagged queuing, SATA 3G/SAS 3G/SAS 6G/SAS
  24 12G.
  25 .SS "Configuration"
  26 .sp
  27 .LP
  28 The \fBmpt_sas\fR driver is configured by defining properties in
  29 \fBmpt_sas.conf\fR. These properties override the global SCSI settings. The
  30 \fBmpt_sas\fR driver supports one modifiable property:
  31 .sp
  32 .ne 2
  33 .na
  34 \fB\fBmpxio-disable\fR\fR
  35 .ad
  36 .sp .6
  37 .RS 4n
  38 Solaris I/O multipathing is enabled or disabled on SAS devices with the
  39 \fBmpxio-disable\fR property. Specifying \fBmpxio-disable="no"\fR activates I/O
  40 multipathing, while \fBmpxio-disable="yes"\fR disables I/O multipathing.
  41 .sp
  42 Solaris I/O multipathing can be enabled or disabled on a per port basis. Per
  43 port settings override the global setting for the specified ports.
  44 .sp
  45 The following example shows how to disable multipathing on port 0 whose parent
  46 is \fB/pci@0,0/pci8086,2940@1c/pci1000,72@0\fR:
  47 .sp
  48 .in +2
  49 .nf
  50 name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0"
  51 mpxio-disable="yes";
  52 .fi
  53 .in -2
  54 
  55 .RE
  56 
  57 .SH EXAMPLES
  58 .LP
  59 \fBExample 1 \fRUsing the \fBmpt_sas\fR Configuration File to Disable MPXIO
  60 .sp
  61 .LP
  62 Create a file called \fB/kernel/drv/mpt_sas.conf\fR and add the following line:
  63 
  64 .sp
  65 .in +2
  66 .nf
  67 name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0"
  68 mpxio-disable="yes";
  69 .fi
  70 .in -2
  71 
  72 .SH FILES
  73 .sp
  74 .ne 2
  75 .na
  76 \fB\fB/kernel/drv/mpt_sas\fR\fR
  77 .ad
  78 .sp .6
  79 .RS 4n
  80 32-bit ELF kernel module
  81 .RE
  82 
  83 .sp
  84 .ne 2
  85 .na
  86 \fB\fB/kernel/drv/sparcv9/mpt_sas\fR\fR
  87 .ad
  88 .sp .6
  89 .RS 4n
  90 64-bit SPARC ELF kernel module
  91 .RE
  92 
  93 .sp
  94 .ne 2
  95 .na
  96 \fB\fB/kernel/drv/amd64/mpt_sas\fR\fR
  97 .ad
  98 .sp .6
  99 .RS 4n
 100 64-bit x86 ELF kernel module
 101 .RE
 102 
 103 .sp
 104 .ne 2
 105 .na
 106 \fB\fB/kernel/drv/mpt_sas.conf\fR\fR
 107 .ad
 108 .sp .6
 109 .RS 4n
 110 Optional configuration file
 111 .RE
 112 
 113 .SH ATTRIBUTES
 114 .sp
 115 .LP
 116 See \fBattributes\fR(5) for a description of the following attributes:
 117 .sp
 118 
 119 .sp
 120 .TS
 121 box;
 122 l | l
 123 l | l .
 124 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 125 _
 126 Architecture    SPARC, x86
 127 .TE
 128 
 129 .SH SEE ALSO
 130 .sp
 131 .LP
 132 \fBprtconf\fR(1M), \fBdriver.conf\fR(4), \fBpci\fR(4), \fBattributes\fR(5),
 133 \fBscsi_abort\fR(9F), \fBscsi_device\fR(9S), \fBscsi_extended_sense\fR(9S),
 134 \fBscsi_inquiry\fR(9S), \fBscsi_hba_attach_setup\fR(9F),
 135 \fBscsi_ifgetcap\fR(9F), \fBscsi_ifsetcap\fR(9F), \fBscsi_pkt\fR(9S),
 136 \fBscsi_reset\fR(9F), \fBscsi_sync_pkt\fR(9F), \fBscsi_transport\fR(9F),