SE(4) FreeBSD Kernel Interfaces Manual SE(4)
NAME
se - Cabletron EA41x SCSI bus Ethernet interface driver
SYNOPSIS
se* at scsibus? target ? lun ?
DESCRIPTION
The se 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
scsi(4), ifconfig(8)
AUTHORS
Ian Dall <
[email protected]>
Acknowledgement: Thanks are due to Philip L. Budne <
[email protected]> 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.
FreeBSD 14.1-RELEASE-p8 February 3, 1997 FreeBSD 14.1-RELEASE-p8