1.\" 2.\" Copyright (c) 2012 Intel Corporation 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions, and the following disclaimer, 10.\" without modification. 11.\" 2. Redistributions in binary form must reproduce at minimum a disclaimer 12.\" substantially similar to the "NO WARRANTY" disclaimer below 13.\" ("Disclaimer") and any redistribution must be conditioned upon 14.\" including a substantially similar Disclaimer requirement for further 15.\" binary redistribution. 16.\" 17.\" NO WARRANTY 18.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 21.\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22.\" HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 27.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGES. 29.\" 30.\" isci driver man page. 31.\" 32.\" Author: Jim Harris <jimharris@FreeBSD.org> 33.\" 34.Dd January 23, 2012 35.Dt ISCI 4 36.Os 37.Sh NAME 38.Nm isci 39.Nd Intel C600 Serial Attached SCSI driver 40.Sh SYNOPSIS 41To compile this driver into your kernel, 42place the following lines in your kernel configuration file: 43.Bd -ragged -offset indent 44.Cd "device scbus" 45.Cd "device isci" 46.Ed 47.Pp 48Or, to load the driver as a module at boot, place the following line in 49.Xr loader.conf 5 : 50.Bd -literal -offset indent 51isci_load="YES" 52.Ed 53.Sh HARDWARE 54The 55.Nm 56driver provides support for Intel C600 57.Tn SAS 58controllers. 59.Sh CONFIGURATION 60To force legacy interrupts for all 61.Nm 62driver instances, set the following tunable value in 63.Xr loader.conf 5 : 64.Bd -literal -offset indent 65hw.isci.force_legacy_interrupts=1 66.Ed 67.Sh DEBUGGING 68To enable debugging prints from the 69.Nm 70driver, set the 71.Bd -literal -offset indent 72hw.isci.debug_level 73.Ed 74.Pp 75variable to a value between 1 and 4 in 76.Xr loader.conf 5 . 77.Pp 78The hardware layer in the 79.Nm 80driver has extensive logging capabilities 81which are disabled by default for performance reasons. 82These can be enabled by adding 83.Bd -literal -offset indent 84options ISCI_LOGGING 85.Ed 86.Pp 87to the kernel configuration file. 88.Sh SEE ALSO 89.Xr cd 4 , 90.Xr ch 4 , 91.Xr da 4 , 92.Xr pci 4 , 93.Xr sa 4 , 94.Xr scsi 4 95.Sh HISTORY 96The 97.Nm 98driver first appeared in 99.Fx 8.3 100and 9.1. 101.Sh AUTHORS 102.An -nosplit 103The 104.Nm 105driver was developed by Intel and originally written by 106.An Jim Harris Aq Mt jimharris@FreeBSD.org 107with contributions from 108.An Sohaib Ahsan 109and input from 110.An Scott Long Aq Mt scottl@FreeBSD.org . 111.Pp 112This man page was written by 113.An Jim Harris Aq Mt jimharris@FreeBSD.org . 114