ESP(4)							   BSD 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)

     http://www.qlc.com/
     http://www.sun.com/

BSD
								 December 3, 2001							       BSD