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.\" $FreeBSD$ 35.\" 36.Dd January 23, 2012 37.Dt ISCI 4 38.Os 39.Sh NAME 40.Nm isci 41.Nd Intel C600 Serial Attached SCSI driver 42.Sh SYNOPSIS 43To compile this driver into your kernel, 44place the following lines in your kernel configuration file: 45.Bd -ragged -offset indent 46.Cd "device scbus" 47.Cd "device isci" 48.Ed 49.Pp 50Or, to load the driver as a module at boot, place the following line in 51.Xr loader.conf 5 : 52.Bd -literal -offset indent 53isci_load="YES" 54.Ed 55.Sh HARDWARE 56The 57.Nm 58driver provides support for Intel C600 59.Tn SAS 60controllers. 61.Sh CONFIGURATION 62To force legacy interrupts for all 63.Nm 64driver instances, set the following tunable value in 65.Xr loader.conf 5 : 66.Bd -literal -offset indent 67hw.isci.force_legacy_interrupts=1 68.Ed 69.Sh DEBUGGING 70To enable debugging prints from the 71.Nm 72driver, set the 73.Bd -literal -offset indent 74hw.isci.debug_level 75.Ed 76.Pp 77variable to a value between 1 and 4 in 78.Xr loader.conf 5 . 79.Pp 80The hardware layer in the 81.Nm 82driver has extensive logging capabilities 83which are disabled by default for performance reasons. 84These can be enabled by adding 85.Bd -literal -offset indent 86options ISCI_LOGGING 87.Ed 88.Pp 89to the kernel configuration file. 90.Sh SEE ALSO 91.Xr cd 4 , 92.Xr ch 4 , 93.Xr da 4 , 94.Xr pci 4 , 95.Xr sa 4 , 96.Xr scsi 4 97.Sh HISTORY 98The 99.Nm 100driver first appeared in 101.Fx 8.3 102and 9.1. 103.Sh AUTHORS 104.An -nosplit 105The 106.Nm 107driver was developed by Intel and originally written by 108.An Jim Harris Aq Mt jimharris@FreeBSD.org 109with contributions from 110.An Sohaib Ahsan 111and input from 112.An Scott Long Aq Mt scottl@FreeBSD.org . 113.Pp 114This man page was written by 115.An Jim Harris Aq Mt jimharris@FreeBSD.org . 116