Return to hdh.4 CVS log

Up to [CSRG BSD Unix] / 43BSDTahoe / man / man4 / vax

Annotation of 43BSDTahoe/man/man4/vax/hdh.4, revision 1.1.1.1

1.1       root        1: .\"    @(#)hdh.4       6.1 (Berkeley) 8/8/85
                      2: .\"
                      3: .TH HDH 4 "August 8, 1985"
                      4: .UC 6
                      5: .SH NAME
                      6: hdh \- ACC IF-11/HDH IMP interface
                      7: .SH SYNOPSIS
                      8: .B "pseudo-device imp"
                      9: .br
                     10: .B "device hdh0 at uba0 csr 166740 vector hdhintr"
                     11: .SH DESCRIPTION
                     12: The 
                     13: .I hdh
                     14: device provides an HDLC Host (HDH)
                     15: interface to an IMP.  It is normally used when participating
                     16: in the DARPA Internet.  The controller itself is not accessible
                     17: to users, but instead provides the hardware support to the IMP
                     18: interface described in
                     19: .IR imp (4).
                     20: When configuring, the 
                     21: .I imp
                     22: pseudo-device must also be included.
                     23: .SH DIAGNOSTICS
                     24: .BR "hdh%d: not alive" .
                     25: The initialization routine was entered even though the device
                     26: did not autoconfigure.  This indicates a system problem.
                     27: .PP
                     28: .BR "hdh%d: cannot get chan %d uba resources" .
                     29: Insufficient UNIBUS resources existed to initialize the device.
                     30: This is likely to be a shortage of UNIBUS mapping registers.
                     31: .PP
                     32: .BR "hdh%d: LINE UP" .
                     33: This indicates that both the HDLC and HDH protocols have declared the
                     34: link to the IMP alive.
                     35: .PP
                     36: .BR "hdh%d: LINE DOWN" .
                     37: This indicates that the link to the IMP has died.
                     38: .PP
                     39: .BR "hdh%d: HOST SEQUENCE ERROR"
                     40: .br
                     41: .BR "hdh%d: IMP SEQUENCE ERROR"
                     42: .br
                     43: .BR "hdh%d: HOST DATA ERROR"
                     44: .br
                     45: .BR "hdh%d: TIMEOUT"
                     46: .br
                     47: These errors indicate that an HDH protocol error has been detected.
                     48: .PP
                     49: .BR "hdh%d: cannot get supervisor cmnd buffer" .
                     50: This error indicates that an
                     51: .I mbuf
                     52: could not be allocated to send a command to the IF-11/HDH.
                     53: .PP
                     54: Any other error message from hdh%d: indicates a serious error
                     55: detected by either the driver or the IF-11/HDH firmware.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.