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2003-01-15
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**
**
** VIA Rhine Family Fast Ethernet Adapter
**
** FreeBSD driver
**
** v3.10 Jan. 2003
**
**
Introduction:
=============
The Fast Ethernet 10/100M FreeBSD driver is enclosed. This document shows you how to
setup the driver.
Contents of the Subdirectory:
=============================
freebsd.txt This file.
freebsd.tar Tar file include the following file list
if_fet.c The FreeBSD driver source code
if_fet.h The FreeBSD driver header file
Installation:
=============
1) Put the driver disc in Drive A. Under the prompt, type "mount_msdos /dev/fd0 /mnt".
Then, type "cp /mnt/freebsd.tar /usr/src/sys/pci".
2) Type the following commands:
(a) "cd /usr/src/sys/pci"
(b) "tar xvf freebsd.tar"
(c) "cd /usr/src/sys/conf"
(d) "ee files"
3) Under editing file 'files'
(a) In FREEBSD 3.x , please add one line as below:
"pci/if_fet.c optional fet device-driver"
and mark this line as below:
"#pci/if_vr.c optional vr device-driver"
(b) In FREEBSD 4.x , please add one line as below:
"pci/if_fet.c optional fet"
and mark this line as below:
"#pci/if_vr.c optional vr"
Then, save the file. It's important to mark if_vr.c, or you will use the
old driver.
4) Type the following commands:
(a) "cd /usr/src/sys/i386/conf"
(b) "cp GENERIC SERVER"
(c) "ee SERVER"
5) Under editing file 'SERVER', finding the division of NIC setting, and insert one line
as below:
"device fet0"
And ,mark this line as below:
"#device vr0"
Then, save the file. It's important to mark device vr0, or you will use the
old driver.
6) Now, it's ready to recompile kernel; type the following commands:
(a) cd /usr/src/sys/i386/conf
(b) config SERVER
(c) cd /usr/src/sys/compile/SERVER
(d) make depend all install
7) Before rebooting, make sure the network-related files under /etc are well-configured.
The files are listed below:
(a) /etc/hosts
(b) /etc/resolv.conf
(c) /etc/host.conf
(d) /etc/rc.conf
8) Now, get ready to reboot, type "sync;sync;sync", and "shutdown -r now".
9) Under the newly compiled kernel, type "ifconfig -a", and you can see a new device fet0 (not vr0).
Speed and duplex mode Setting:
==============================
You can use ifconfig command to force speed and duplex mode of NIC,
where # below is network interface number. We only support this function in
FreeBSD 4.x now.
(eg: Use "ifconfig fet0 media 100baseTX" command to force NIC to 100Mbps half-duplex mode)
1) Auto Mode (Autonegotiation)
ifconfig fet# media auto
2) 100Mbps full-duplex mode
ifconfig fet# media 100baseTX mediaopt full-duplex
3) 100Mbps half-duplex mode
ifconfig fet# media 100baseTX
4) 10Mbps full-duplex mode
ifconfig fet# media 10baseT/UTP mediaopt full-duplex
5) 10Mbps half-duplex mode
ifconfig fet# media 10baseT/UTP
Driver tunable parameters (Experts only)
========================================
You can tune up the performance of driver by modified the pre-define
constants in header file if_fet.h.
DMA_LENGTH_DEF:
DMA_LENGTH_DEF is used for controlling the DMA length.
0: 8 DWORDs
1: 16 DWORDs (Default)
2: 32 DWORDs
3: 64 DWORDs
4: 128 DWORDs
5: 256 DWORDs
6: SF(flush till emply)
7: SF(flush till emply)
TX_THRESH_DEF:
TX_THRESH_DEF is used for controlling the transmit fifo threshold.
0: indicate the txfifo threshold is 128 bytes. (Default)
1: indicate the txfifo threshold is 256 bytes.
2: indicate the txfifo threshold is 512 bytes.
3: indicate the txfifo threshold is 1024 bytes.
4: indicate that we use store and forward
QPACKET_DEF:
QPACKET_DEF is used for controlling the enable/disable the transmit
status write back queue.
0: Disable
1: Enable (Default)
VAL_PKT_LEN:
VAL_PKT_LEN is used to drop 802.3 frame with invalid length.
0: Disable (Default)
1: Enable