1.\" 2.\" Copyright (c) 2006 Tom Rhodes 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.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd July 10, 2007 29.Dt IPMI 4 30.Os 31.Sh NAME 32.Nm ipmi 33.Nd "OpenIPMI compatible IPMI interface driver" 34.Sh SYNOPSIS 35.Cd "device ipmi" 36.Pp 37To manually specify I/O attachment in 38.Pa /boot/device.hints : 39.Cd hint.ipmi.0.at="isa" 40.Cd hint.ipmi.0.port="0xCA2" 41.Cd hint.ipmi.0.spacing="8" 42.Cd hint.ipmi.0.mode="KCS" 43.Pp 44To manually specify memory attachment in 45.Pa /boot/device.hints : 46.Cd hint.ipmi.0.at="isa" 47.Cd hint.ipmi.0.maddr="0xf0000000" 48.Cd hint.ipmi.0.spacing="8" 49.Cd hint.ipmi.0.mode="SMIC" 50.Pp 51Meaning of 52.Ar spacing : 53.Bl -tag -offset indent -compact -width 0x0 54.It 8 558 bit alignment 56.It 16 5716 bit alignment 58.It 32 5932 bit alignment 60.El 61.Pp 62If the 63.Ar port 64and 65.Ar spacing 66are not specified the interface type default will be used. 67Only specify either the 68.Ar port 69for I/O access or 70.Ar maddr 71for memory access. 72.Sh DESCRIPTION 73The 74.Tn IPMI 75(Intelligent Platform Management Interface) is a standard for 76monitoring system hardware by permitting generic code to detect 77and monitor the sensors in a system. 78The 79.Tn IPMI 80standard offers watchdog support, an FRU database, and other 81support extensions. 82It is currently being adopted by the makers of many 83single board and embedded system manufacturers. 84.Pp 85The 86.Nm 87driver in 88.Fx 89is heavily adopted from the standard and 90.Tn Linux 91driver; however, not all features described in the 92standard are supported. 93.Sh IOCTLS 94Sending and receiving messages through the 95.Nm 96driver requires the use of 97.Xr ioctl 2 . 98The ioctls are used due to the complexity of 99data sent to and from the device. 100The 101.Xr ioctl 2 102command codes below are defined in 103.In sys/ipmi.h . 104The third argument to 105.Xr ioctl 2 106should be a pointer to the type indicated. 107.Pp 108Currently the following ioctls are supported: 109.Bl -tag -width indent 110.It Dv IPMICTL_RECEIVE_MSG Pq Vt "struct ipmi_recv" 111Receive a message. 112Possible error values: 113.Bl -tag -width Er 114.It Bq Er EAGAIN 115No messages are in the process queue. 116.It Bq Er EFAULT 117An address supplied was invalid. 118.It Bq Er EMSGSIZE 119The address could not fit in the message buffer and 120will remain in the buffer. 121.El 122.It Dv IPMICTL_RECEIVE_MSG_TRUNC Pq Vt "struct ipmi_recv" 123Like 124.Dv IPMICTL_RECEIVE_MSG 125but if the message cannot fit into the buffer, it 126will truncate the contents instead of leaving the data 127in the buffer. 128.It Dv IPMICTL_SEND_COMMAND Pq Vt "struct ipmi_req" 129Send a message to the interface. 130Possible error values: 131.Bl -tag -width Er 132.It Bq Er EFAULT 133An address supplied was invalid. 134.It Bq Er ENOMEM 135Buffers could not be allowed for the command, out of memory. 136.El 137.It Dv IPMICTL_SET_MY_ADDRESS_CMD Pq Vt "unsigned int" 138Set the slave address for source messages. 139.It Dv IPMICTL_GET_MY_ADDRESS_CMD Pq Vt "unsigned int" 140Get the slave address for source messages. 141.It Dv IPMICTL_SET_MY_LUN_CMD Pq Vt "unsigned int" 142Set the slave LUN for source messages. 143.It Dv IPMICTL_GET_MY_LUN_CMD Pq Vt "unsigned int" 144Get the slave LUN for source messages. 145.El 146.Ss Unimplemented Ioctls 147.Bl -tag -width indent 148.It Dv IPMICTL_REGISTER_FOR_CMD Pq Vt "struct ipmi_cmdspec" 149Register to receive a specific command. 150Possible error values: 151.Bl -tag -width Er 152.It Bq Er EFAULT 153An supplied address was invalid. 154.It Bq Er EBUSY 155The network function/command is already in use. 156.It Bq Er ENOMEM 157Could not allocate memory. 158.El 159.It Dv IPMICTL_UNREGISTER_FOR_CMD Pq Vt "struct ipmi_cmdspec" 160Unregister to receive a specific command. 161Possible error values: 162.Bl -tag -width Er 163.It Bq Er EFAULT 164An address supplied was invalid. 165.It Bq Er ENOENT 166The network function/command was not found. 167.El 168.El 169.Ss Stub Only Ioctl 170.Bl -tag -width indent 171.It Dv IPMICTL_SET_GETS_EVENTS_CMD Pq Vt int 172Set whether this interface receives events. 173Possible error values: 174.Bl -tag -width Er 175.It Bq Er EFAULT 176An address supplied was invalid. 177.El 178.El 179.Sh SEE ALSO 180.Xr ioctl 2 , 181.Xr watchdog 4 , 182.Xr watchdog 8 , 183.Xr watchdogd 8 , 184.Xr watchdog 9 185.Sh HISTORY 186The 187.Nm 188driver first appeared in 189.Fx 6.2 . 190.Sh AUTHORS 191.An -nosplit 192The 193.Nm 194driver was written by 195.An Doug Ambrisko Aq Mt ambrisko@FreeBSD.org . 196This manual page was written by 197.An Tom Rhodes Aq Mt trhodes@FreeBSD.org . 198.Sh BUGS 199Not all features of the MontaVista driver are supported. 200.Pp 201Currently, IPMB and BT modes are not implemented. 202