| ESP(4) | Kernel Interfaces Manual | ESP(4) | 
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)