From: CSRG <csrg@ucbvax.Berkeley.EDU>
Date: Tue, 8 Mar 1983 09:06:31 +0000 (-0800)
Subject: BSD 4_1c_2 development
X-Git-Tag: BSD-4_1c_2~96
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/949da2b696e6f9c3336831728620882ae870f60c

BSD 4_1c_2 development
Work on file usr/man/man4/css.4v

Synthesized-from: CSRG/cd1/4.1c.2
---

diff --git a/usr/man/man4/css.4v b/usr/man/man4/css.4v
new file mode 100644
index 0000000000..ff75f3ea51
--- /dev/null
+++ b/usr/man/man4/css.4v
@@ -0,0 +1,51 @@
+.TH CSS 4V "25 February 1983"
+.UC 4
+.SH NAME
+css \- DEC IMP-11A LH/DH IMP interface
+.SH SYNOPSIS
+.B "pseudo-device imp"
+.br
+.B "device css0 at uba0 csr 167600 flags 10 vector cssrint cssxint"
+.SH DESCRIPTION
+The 
+.I css
+device provides a Local Host/Distant Host
+interface to an IMP.  It is normally used when participating
+in the DARPA Internet.  The controller itself is not accessible
+to users, but instead provides the hardware support to the IMP
+interface described in
+.IR imp (4V).
+When configuring, the 
+.I imp
+pseudo-device is also included.
+.SH DIAGNOSTICS
+.BR "css%d: not alive" .
+The initialization routine was entered even though the device
+did not autoconfigure.  This is indicates a system problem.
+.PP
+.BR "css%d: can't initialize" .
+Insufficient UNIBUS resources existed to initialize the device.
+This is likely to occur when the device is run on a buffered
+data path on an 11/750 and other network interfaces are also
+configured to use buffered data paths, or when it is configured
+to use buffered data paths on an 11/730 (which has none).
+.PP
+.BR "css%d: imp doesn't respond, icsr=%b" .
+The driver attempted to initialize the device, but the IMP
+failed to respond after 500 tries.  Check the cabling.
+.PP
+.BR "css%d: stray output interrupt csr=%b" .
+An interrupt occured when no output had previously been started. 
+.PP
+.BR "css%d: output error, ocsr=%b icsr=%b" .
+The device indicated a problem sending data on output.
+.PP
+.BR "css%d: recv error, csr=%b" .
+The device indicated a problem receiving data on input.
+.PP
+.BR "css%d: bad length=%d" .
+An input operation resulted in a data transfer of less than
+0 or more than 1008 bytes of
+data into memory (according to the word count register).
+This should never happen as the maximum size of a host-IMP
+message is 1008 bytes.