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Annotation of 43BSDReno/share/man/man4/man4.vax/hdh.4, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"    @(#)hdh.4       6.3 (Berkeley) 6/23/90
        !            19: .\"
        !            20: .TH HDH 4 "June 23, 1990"
        !            21: .UC 6
        !            22: .SH NAME
        !            23: hdh \- ACC IF-11/HDH IMP interface
        !            24: .SH SYNOPSIS
        !            25: .B "pseudo-device imp"
        !            26: .br
        !            27: .B "device hdh0 at uba0 csr 166740 vector hdhintr"
        !            28: .SH DESCRIPTION
        !            29: The 
        !            30: .I hdh
        !            31: device provides an HDLC Host (HDH)
        !            32: interface to an IMP.  It is normally used when participating
        !            33: in the DARPA Internet.  The controller itself is not accessible
        !            34: to users, but instead provides the hardware support to the IMP
        !            35: interface described in
        !            36: .IR imp (4).
        !            37: When configuring, the 
        !            38: .I imp
        !            39: pseudo-device must also be included.
        !            40: .SH DIAGNOSTICS
        !            41: .BR "hdh%d: not alive" .
        !            42: The initialization routine was entered even though the device
        !            43: did not autoconfigure.  This indicates a system problem.
        !            44: .PP
        !            45: .BR "hdh%d: cannot get chan %d uba resources" .
        !            46: Insufficient UNIBUS resources existed to initialize the device.
        !            47: This is likely to be a shortage of UNIBUS mapping registers.
        !            48: .PP
        !            49: .BR "hdh%d: LINE UP" .
        !            50: This indicates that both the HDLC and HDH protocols have declared the
        !            51: link to the IMP alive.
        !            52: .PP
        !            53: .BR "hdh%d: LINE DOWN" .
        !            54: This indicates that the link to the IMP has died.
        !            55: .PP
        !            56: .BR "hdh%d: HOST SEQUENCE ERROR"
        !            57: .br
        !            58: .BR "hdh%d: IMP SEQUENCE ERROR"
        !            59: .br
        !            60: .BR "hdh%d: HOST DATA ERROR"
        !            61: .br
        !            62: .BR "hdh%d: TIMEOUT"
        !            63: .br
        !            64: These errors indicate that an HDH protocol error has been detected.
        !            65: .PP
        !            66: .BR "hdh%d: cannot get supervisor cmnd buffer" .
        !            67: This error indicates that an
        !            68: .I mbuf
        !            69: could not be allocated to send a command to the IF-11/HDH.
        !            70: .PP
        !            71: Any other error message from hdh%d: indicates a serious error
        !            72: detected by either the driver or the IF-11/HDH firmware.
        !            73: .SH "SEE ALSO"
        !            74: netintro(4)

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