perikillo wrote:
Hi people i need to install one SCSI PCI card, the chip is support
by freebsd 5.4 hardware using the driver ahc:
Chip 26160N Adaptec
I read the man pages for the driver ahc(4), and say this:
SYNOPSIS
For one or more VL/EISA cards:
device eisa
device ahc
For one or more PCI cards:
device pci
device ahc
To allow PCI adapters to use memory mapped I/O if enabled:
options AHC_ALLOW_MEMIO
To configure one or more controllers to assume the target role:
options AHC_TMODE_ENABLE
For one or more SCSI busses:
device scbus
But i dosent understand what options i need in my kernel config
file, i have by default
device eisa
device pci
Them i add
device ahc
options AHC_ALLOW_MEMIO
And them "make" give me error code 1, i remove options
AHC_ALLOW_MEMIO and give me again errors, my motherboard dosent have
any internal SCSI stuff.
It's irrelevant whether your motherboard has SCSI, you are adding a SCSI
card so need SCSI options.
My config has
device scbus #base SCSI code
#device ch #SCSI media changers
device da #SCSI direct access devices (aka disks)
device sa #SCSI tapes
device cd #SCSI CD-ROMs
device ses #SCSI Environmental Services (and SAF-TE)
#device pt #SCSI processor
#device targ#SCSI Target Mode Code
#device targbh #SCSI Target Mode Blackhole Device
device pass#CAM passthrough driver
device ahc
Go to /usr/src/syc and read ../../conf/NOTES and NOTES which make up
pretty much every option you can put into a kernel.
scbus is mandatory and you can pick and choose the others depending on
what you are going to attach. (Don't ask me what a SCSI Environmental
Service is though). You might also want
device atapicam# emulate ATAPI devices as SCSI ditto
via CAM
which allows atapi CDs and DVDs to be seen by the SCSI CAM code. This
is particularly useful if you intend to burn CDs with (I think) cdrecord
and probably other things as well.
I've never used AHC_ALLOW_MEMIO so have no idea of its benefits or
drawbacks.
--Alex
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