NAME
se —
Cabletron EA41x SCSI bus Ethernet
interface driver
SYNOPSIS
se* at scsibus? target ? lun ?
DESCRIPTION
These driver supports the Cabletron EA41x SCSI bus
Ethernet interface.
This driver is a bit unusual. It must look like a network interface and it must also appear to be a SCSI device to the SCSI system.
In addition, to facilitate SCSI commands issued by
userland programs, there are
open(),
close(),
and
ioctl()
entry points. This allows a user program to, for example, display the EA41x
statistic and download new code into the adaptor - functions which can't be
performed through the
ifconfig(8) interface. Normal operation does not require any special
userland program.
SEE ALSO
AUTHORS
Ian Dall <ian.dall@dsto.defence.gov.au>
Acknowledgement: Thanks are due to Philip L. Budne <budd@cs.bu.edu> who reverse engineered the EA41x. In developing this code, Phil's userland daemon "etherd", was referred to extensively in lieu of accurate documentation for the device.
BUGS
The EA41x doesn't conform to the SCSI specification in much at all. About the only standard command supported is "inquiry". Most commands are 6 bytes long, but the recv data is only 1 byte. Data must be received by periodically polling the device with the recv command.