1*61595Sbostic.\" Copyright (c) 1983, 1991, 1993 2*61595Sbostic.\" The Regents of the University of California. All rights reserved. 320708Smckusick.\" 447674Scael.\" %sccs.include.redist.man% 520708Smckusick.\" 6*61595Sbostic.\" @(#)css.4 8.1 (Berkeley) 06/05/93 747674Scael.\" 847674Scael.Dd 947674Scael.Dt CSS 4 vax 1047674Scael.Os BSD 4.2 1147674Scael.Sh NAME 1247674Scael.Nm css 1347674Scael.Nd 1447674Scael.Tn DEC IMP-11A LH/DH IMP 1547674Scaelinterface 1647674Scael.Sh SYNOPSIS 1747674Scael.Cd "pseudo-device imp device css0 \&at uba0 csr 167600 flags 10 vector cssrint cssxint" 1847674Scael.Sh DESCRIPTION 1920708SmckusickThe 2047674Scael.Nm css 2120708Smckusickdevice provides a Local Host/Distant Host 2247674Scaelinterface to an 2347674Scael.Tn IMP . 2447674ScaelIt is normally used when participating 2547674Scaelin the 2647674Scael.Tn DARPA 2747674ScaelInternet. The controller itself is not accessible 2847674Scaelto users, but instead provides the hardware support to the 2947674Scael.Tn IMP 3020708Smckusickinterface described in 3147674Scael.Xr imp 4 . 3247674ScaelThe configuration entry for the 3347674Scael.Xr imp 3447674Scaelmust also include the 3547674Scael.Em pseudo-device 3647674Scaelas shown above. 3747674Scael.Sh DIAGNOSTICS 3847674Scael.Bl -diag 3947674Scael.It css%d: not alive. 4020708SmckusickThe initialization routine was entered even though the device 4120708Smckusickdid not autoconfigure. This is indicates a system problem. 4247674Scael.Pp 4347674Scael.It css%d: can't initialize. 4447674ScaelInsufficient 4547674Scael.Tn UNIBUS 4647674Scaelresources existed to initialize the device. 4720708SmckusickThis is likely to occur when the device is run on a buffered 4820708Smckusickdata path on an 11/750 and other network interfaces are also 4920708Smckusickconfigured to use buffered data paths, or when it is configured 5020708Smckusickto use buffered data paths on an 11/730 (which has none). 5147674Scael.Pp 5247674Scael.It css%d: imp doesn't respond, icsr=%b. 5347674ScaelThe driver attempted to initialize the device, but the 5447674Scael.Tn IMP 5520708Smckusickfailed to respond after 500 tries. Check the cabling. 5647674Scael.Pp 5747674Scael.It css%d: stray output interrupt csr=%b. 5820708SmckusickAn interrupt occurred when no output had previously been started. 5947674Scael.Pp 6047674Scael.It css%d: output error, ocsr=%b icsr=%b. 6120708SmckusickThe device indicated a problem sending data on output. 6247674Scael.Pp 6347674Scael.It css%d: recv error, csr=%b. 6420708SmckusickThe device indicated a problem receiving data on input. 6547674Scael.Pp 6647674Scael.It css%d: bad length=%d. 6720708SmckusickAn input operation resulted in a data transfer of less than 6820708Smckusick0 or more than 1008 bytes of 6920708Smckusickdata into memory (according to the word count register). 7047674ScaelThis should never happen as the maximum size of a 7147674Scael.Pf host- Tn IMP 7220708Smckusickmessage is 1008 bytes. 7347674Scael.El 7447674Scael.Sh HISTORY 7547674ScaelThe 7647674Scael.Nm 7747674Scaelinterface appeared in 7847674Scael.Bx 4.2 . 79