amd(7)
amd --
AMD SCSI host adapter subsystem
Description
The amd host adapter driver provides
a Storage Device Interface (SDI)-compliant interface
to various SCSI solutions
based on the Am53C974 PCscsi and Am73C974 PCnet-scsi
chips.
The Am53C974 is a Bus Mastering Fast SCSI Controller Chip
for PCI Systems,
whereas the Am73C974 is a combination Ethernet/SCSI controller.
The Am53C974 chip is found on the motherboard of various systems
and on controller cards from various manufacturers.
The amd host adapter driver enables SDI-compliant target
drivers (such as sd01 and st01) to communicate
on the SCSI bus with target controllers and logical units.
This allows normal access to mass-storage devices
using standard system interfaces and filesystems.
You can access the SCSI-bus subsystem directly
by using the driver's pass-through interface.
This allows the user to issue sb
control blocks directly to a SCSI target device.
To find the appropriate pass-through device to use
for a particular target device,
the user should
open(2)
the character special file
for the device in question and then issue
the B_GETDEV ioctl
(see
ioctl(2)).
The device value returned should then be used
to create a character special file which, when opened,
can be used for pass-through (SDI_SEND ioctl).
ioctl calls
amd supports all of the SDI pass-through
ioctl(2)
commands documented on the
sdi(7)
manual page.
Files
- /usr/include/sys/scsi.h
-
- /usr/include/sys/sdi.h
-
- /usr/include/sys/sdi_edt.h
-
- /usr/include/sys/sdi_comm.h
-
- /etc/conf/pack.d/amd/space.c
-
- /etc/conf/drvmap.d/amd
-
References
ioctl(2),
sc01(7),
sd01(7),
sdi(7),
st01(7),
sw01(7)
30 January 1998
© 1998 The Santa Cruz Operation, Inc. All rights reserved.