ipmi man page on FreeBSD

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IPMI(4)			 BSD Kernel Interfaces Manual		       IPMI(4)

NAME
     ipmi — OpenIPMI compatible IPMI interface driver

SYNOPSIS
     device ipmi

     To manually specify I/O attachment in /boot/device.hints:
     hint.ipmi.0.at="isa"
     hint.ipmi.0.port="0xCA2"
     hint.ipmi.0.spacing="8"
     hint.ipmi.0.mode="KCS"

     To manually specify memory attachment in /boot/device.hints:
     hint.ipmi.0.at="isa"
     hint.ipmi.0.maddr="0xf0000000"
     hint.ipmi.0.spacing="8"
     hint.ipmi.0.mode="SMIC"

     Meaning of spacing:
	   8	8 bit alignment
	   16	16 bit alignment
	   32	32 bit alignment

     If the port and spacing are not specified the interface type default will
     be used.  Only specify either the port for I/O access or maddr for memory
     access.

DESCRIPTION
     The IPMI (Intelligent Platform Management Interface) is a standard for
     monitoring system hardware by permitting generic code to detect and moni‐
     tor the sensors in a system.  The IPMI standard offers watchdog support,
     an FRU database, and other support extensions.  It is currently being
     adopted by the makers of many single board and embedded system manufac‐
     turers.

     The ipmi driver in FreeBSD is heavily adopted from the standard and Linux
     driver; however, not all features described in the standard are sup‐
     ported.

IOCTLS
     Sending and receiving messages through the ipmi driver requires the use
     of ioctl(2).  The ioctls are used due to the complexity of data sent to
     and from the device.  The ioctl(2) command codes below are defined in
     <sys/ipmi.h>.  The third argument to ioctl(2) should be a pointer to the
     type indicated.

     Currently the following ioctls are supported:

     IPMICTL_RECEIVE_MSG (struct ipmi_recv)
	     Receive a message.	 Possible error values:

	     [EAGAIN]		No messages are in the process queue.

	     [EFAULT]		An address supplied was invalid.

	     [EMSGSIZE]		The address could not fit in the message buf‐
				fer and will remain in the buffer.

     IPMICTL_RECEIVE_MSG_TRUNC (struct ipmi_recv)
	     Like IPMICTL_RECEIVE_MSG but if the message cannot fit into the
	     buffer, it will truncate the contents instead of leaving the data
	     in the buffer.

     IPMICTL_SEND_COMMAND (struct ipmi_req)
	     Send a message to the interface.  Possible error values:

	     [EFAULT]		An address supplied was invalid

	     [ENOMEM]		Buffers could not be allowed for the command,
				out of memory.

     IPMICTL_SET_MY_ADDRESS_CMD (unsigned int)
	     Set the slave address for source messages.

     IPMICTL_GET_MY_ADDRESS_CMD (unsigned int)
	     Get the slave address for source messages.

     IPMICTL_SET_MY_LUN_CMD (unsigned int)
	     Set the slave LUN for source messages.

     IPMICTL_GET_MY_LUN_CMD (unsigned int)
	     Get the slave LUN for source messages.

   Unimplemented Ioctls
     IPMICTL_REGISTER_FOR_CMD (struct ipmi_cmdspec)
	     Register to receive a specific command Possible error values:

	     [EFAULT]		An supplied address was invalid.

	     [EBUSY]		The network function/command is already in
				use.

	     [ENOMEM]		Could not allocate memory.

     IPMICTL_UNREGISTER_FOR_CMD (struct ipmi_cmdspec)
	     Unregister to receive a specific command Possible error values:

	     [EFAULT]		An address supplied was invalid.

	     [ENOENT]		The network function/command was not found.

   Stub Only Ioctl
     IPMICTL_SET_GETS_EVENTS_CMD (int)
	     Set whether this interface receives events.  Possible error val‐
	     ues:

	     [EFAULT]		An address supplied was invalid.

SEE ALSO
     ioctl(2), watchdog(4), watchdog(8), watchdogd(8), watchdog(9)

HISTORY
     The ipmi driver first appeared in FreeBSD 6.2.

AUTHORS
     The ipmi driver was written by Doug Ambrisko ⟨ambrisko@FreeBSD.org⟩.
     This manual page was written by Tom Rhodes ⟨trhodes@FreeBSD.org⟩.

BUGS
     Not all features of the MontaVista driver are supported.

     Currently, IPMB and BT modes are not implemented.

BSD				 July 10, 2007				   BSD
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