1.\" 2.\" Copyright (c) 2006 The DragonFly Project. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in 12.\" the documentation and/or other materials provided with the 13.\" distribution. 14.\" 3. Neither the name of The DragonFly Project nor the names of its 15.\" contributors may be used to endorse or promote products derived 16.\" from this software without specific, prior written permission. 17.\" 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 MERCHANTABILITY AND FITNESS 21.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.Dd February 5, 2015 32.Dt ECC 4 33.Os 34.Sh NAME 35.Nm ecc 36.Nd ECC memory controller support 37.Sh SYNOPSIS 38To compile this driver into the kernel, 39place the following lines in your 40kernel configuration file: 41.Bd -ragged -offset indent 42.Cd "device dimm" 43.Cd "device coremctl" 44.Cd "device ecc" 45.Ed 46.Pp 47Alternatively, to load the driver as a 48module at boot time, place the following line in 49.Xr loader.conf 5 : 50.Bd -literal -offset indent 51ecc_load="YES" 52.Ed 53.Sh DESCRIPTION 54The 55.Nm 56device attaches to an ECC memory controller. 57If ECC support is enabled in the BIOS, the device will poll the controller 58once a second and report any corrections or uncorrectable errors. 59.Sh HARDWARE 60The 61.Nm 62driver supports the following memory controllers: 63.Pp 64.Bl -bullet -compact 65.It 66AMD 8000 memory controller 67.It 68AMD 8151 memory controller 69.It 70Intel E3 memory controller 71.It 72Intel E3 v2 memory controller 73.It 74Intel E3 v3 memory controller 75.\".It 76.\"Intel X3400 memory controller 77.It 78Intel E5 v2 memory controller 79.It 80Intel E5 v3 memory controller 81.El 82.Sh HISTORY 83The 84.Nm 85device driver first appeared in 86.Dx 1.7 . 87.Sh AUTHORS 88The 89.Nm 90driver was written by 91.An Matthew Dillon . 92