ESP(4) Kernel Interfaces Manual ESP(4)
NAME
espNCR 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/