NAME
esp
- NCR 53C9x, Emulex ESP406, and Qlogic FAS408 SCSI driver
SYNOPSIS
ISA bus
esp0 at isa? port 0x230 irq ?
PCMCIA
esp* at pcmcia? function ?
MCA
esp* at mca? slot ?
mac68k
esp0 at obio?
esp1 at obio?
macppc
esp0 at obio0 flags 0x00ff
sun3x
esp0 at obio0 addr 0x66000000 ipl 2 flags 0xff0f
sparc
dma0 at obio0 addr 0xfa001000 level 4 (Sun 4/300)
esp0 at obio0 addr 0xfa000000 level 4 (Sun 4/300)
dma0 at sbus0 slot ? offset ? (sun4c and sun4m)
esp0 at sbus0 slot ? offset ? (sun4c)
esp0 at dma0 (sun4m)
dma* at sbus? slot ? offset ? (Sbus)
esp* at sbus? slot ? offset ? (SBus, older PROMs)
esp* at dma? (SBus)
scsibus* at esp?
DESCRIPTION
The
esp
driver provides support for the
NCR
53C90, 53C94 and 53C96;
Emulex
ESP100, ESP100A, ESP200 and ESP406; and
Qlogic
FAS216 and FAS408
SCSI
controller chips found in a wide variety of systems and peripheral boards.
This includes the
Qlogic
ISA
and
VLB
SCSI
host adapters, and the
Sun
Fast
SCSI
buffered
Ethernet
for
Sbus
(FSBE/S, X1053A, Sun part # 501-2015).
For
Qlogic
PCI
SCSI
host adapters, use the
isp(4)
device.
CONFIGURATION
The
esp
driver supports the following
flags
for use in
config(1)
files:
- bits 0-7
- :
disable disconnect/reselect for the corresponding
SCSI
target
- bits 8-15
- :
disable synchronous negotiation for the corresponding
SCSI
target
- bits 16-23
- :
disable tagged queuing for the corresponding
SCSI
target
"Target
is synonymous with
SCSI
ID number.
Note that
SCSI
tape drives should be allowed to perform disconnect/reselect or performance
will suffer.
SEE ALSO
cd(4),
ch(4),
intro(4),
le(4),
mca(4),
pcmcia(4),
scsi(4),
sd(4),
ss(4),
st(4),
uk(4)
http://www.qlc.com/
http://www.sun.com/