1 '\" te
   2 .\" Copyright (c) 2009, Sun Microsystems, Inc. All Rights Reserved
   3 .\" 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
   4 .\" 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
   5 .\" 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]
   6 .TH MPT_SAS 7D "Jul 16, 2009"
   7 .SH NAME
   8 mpt_sas \- SAS-2 host bus adapter driver
   9 .SH SYNOPSIS
  10 .sp
  11 .in +2
  12 .nf
  13 scsi@unit-address
  14 .fi
  15 .in -2
  16 
  17 .SH DESCRIPTION
  18 .sp
  19 .LP
  20 The \fBmpt_sas\fR host bus adapter driver is a nexus driver that supports the
  21 LSI SAS200x/2108 series of chips. These chips support SAS/SATA interfaces,
  22 including tagged and untagged queuing, SATA 3G/SAS 3G/SAS 6G.
  23 .SS "Configuration"
  24 .sp
  25 .LP
  26 The \fBmpt_sas\fR driver is configured by defining properties in
  27 \fBmpt_sas.conf\fR. These properties override the global SCSI settings. The
  28 \fBmpt_sas\fR driver supports one modifiable property:
  29 .sp
  30 .ne 2
  31 .na
  32 \fB\fBmpxio-disable\fR\fR
  33 .ad
  34 .sp .6
  35 .RS 4n
  36 Solaris I/O multipathing is enabled or disabled on SAS devices with the
  37 \fBmpxio-disable\fR property. Specifying \fBmpxio-disable="no"\fR activates I/O
  38 multipathing, while \fBmpxio-disable="yes"\fR disables I/O multipathing.
  39 .sp
  40 Solaris I/O multipathing can be enabled or disabled on a per port basis. Per
  41 port settings override the global setting for the specified ports.
  42 .sp
  43 The following example shows how to disable multipathing on port 0 whose parent
  44 is \fB/pci@0,0/pci8086,2940@1c/pci1000,72@0\fR:
  45 .sp
  46 .in +2
  47 .nf
  48 name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0"
  49 mpxio-disable="yes";
  50 .fi
  51 .in -2
  52 
  53 .RE
  54 
  55 .SH EXAMPLES
  56 .LP
  57 \fBExample 1 \fRUsing the \fBmpt_sas\fR Configuration File to Disable MPXIO
  58 .sp
  59 .LP
  60 Create a file called \fB/kernel/drv/mpt_sas.conf\fR and add the following line:
  61 
  62 .sp
  63 .in +2
  64 .nf
  65 name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0"
  66 mpxio-disable="yes";
  67 .fi
  68 .in -2
  69 
  70 .SH FILES
  71 .sp
  72 .ne 2
  73 .na
  74 \fB\fB/kernel/drv/mpt_sas\fR\fR
  75 .ad
  76 .sp .6
  77 .RS 4n
  78 32-bit ELF kernel module
  79 .RE
  80 
  81 .sp
  82 .ne 2
  83 .na
  84 \fB\fB/kernel/drv/sparcv9/mpt_sas\fR\fR
  85 .ad
  86 .sp .6
  87 .RS 4n
  88 64-bit SPARC ELF kernel module
  89 .RE
  90 
  91 .sp
  92 .ne 2
  93 .na
  94 \fB\fB/kernel/drv/amd64/mpt_sas\fR\fR
  95 .ad
  96 .sp .6
  97 .RS 4n
  98 64-bit x86 ELF kernel module
  99 .RE
 100 
 101 .sp
 102 .ne 2
 103 .na
 104 \fB\fB/kernel/drv/mpt_sas.conf\fR\fR
 105 .ad
 106 .sp .6
 107 .RS 4n
 108 Optional configuration file
 109 .RE
 110 
 111 .SH ATTRIBUTES
 112 .sp
 113 .LP
 114 See \fBattributes\fR(5) for a description of the following attributes:
 115 .sp
 116 
 117 .sp
 118 .TS
 119 box;
 120 l | l
 121 l | l .
 122 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 123 _
 124 Architecture    SPARC, x86
 125 .TE
 126 
 127 .SH SEE ALSO
 128 .sp
 129 .LP
 130 \fBprtconf\fR(1M), \fBdriver.conf\fR(4), \fBpci\fR(4), \fBattributes\fR(5),
 131 \fBscsi_abort\fR(9F), \fBscsi_device\fR(9S), \fBscsi_extended_sense\fR(9S),
 132 \fBscsi_inquiry\fR(9S), \fBscsi_hba_attach_setup\fR(9F),
 133 \fBscsi_ifgetcap\fR(9F), \fBscsi_ifsetcap\fR(9F), \fBscsi_pkt\fR(9S),
 134 \fBscsi_reset\fR(9F), \fBscsi_sync_pkt\fR(9F), \fBscsi_transport\fR(9F),