TMSCP
Section: Devices and Network Interfaces (4)
Updated: vax
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BSD mandoc
BSD 4.3
NAME
tmscp
- DEC TMSCP
magtape interface
SYNOPSIS
controller tmscp0 at uba? csr 0174500 vector tmscpintr
tape tms0 at tmscp0 drive 0
DESCRIPTION
Tape controllers compatible with the
DEC
Tape Mass Storage Control Protocol
(TMSCP
)
architecture
such as the
TU81
and the
TK50
provide a standard tape drive interface
as described in
mtio(4).
The controller communicates with the host through a packet
oriented protocol.
Consult the file
Aq Pa vax/tmscp.h
for a detailed
description of this protocol.
DIAGNOSTICS
- tmscp controller failed to init.
-
The controller initialization procedure failed.
This probably indicates a hardware problem.
- tmscp%d: sa 0%o, state %d.
-
(Additional status information given after a hard
I/O
error.)
The values of the controller status register and the internal
driver state are printed.
- tmscp%d: random interrupt ignored.
-
An unexpected interrupt was received (e.g. when no
I/O
was
pending). The interrupt is ignored.
- tmscp%d: interrupt in unknown state %d ignored.
-
An interrupt was received when the driver was in an unknown
internal state. Indicates a hardware problem or a driver bug.
- tmscp%d: fatal error (0%o).
-
The controller detected a ``fatal error'' in the status returned
to the host. The contents of the status register are displayed.
- OFFLINE.
-
(Additional status information given after a hard
I/O
error.)
A hard
I/O
error occurred because the drive was not on-line.
- tmscp%d: hard error
-
- tmscp%d: soft error.
-
These errors precede an interpretation of a
TMSCP
error message
returned by the controller to the host.
TMSCP
errors may be:
- controller error, event 0%o.
-
- host memory access error, event 0%o, addr 0%o.
-
- tape transfer error, unit %d, grp 0x%x, event 0%o.
-
- STI error, unit %d, event 0%o.
-
- STI Drive Error Log, unit %d, event 0%o.
-
- STI Formatter Error Log, unit %d, event 0%o.
-
- unknown error, unit %d, format 0%o, event 0%o.
-
SEE ALSO
mt(1),
tar(1),
tp(1),
mtio(4),
tm(4),
ts(4),
ut(4),
dmesg(8)
HISTORY
The
driver appeared in
BSD 4.3
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- DIAGNOSTICS
-
- SEE ALSO
-
- HISTORY
-
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Time: 06:48:55 GMT, May 19, 2025