282 lines
9.2 KiB
Text
282 lines
9.2 KiB
Text
|
|
D-Link DL2000-based Gigabit Ethernet Adapter Installation
|
|
for Linux
|
|
May 23, 2002
|
|
|
|
Contents
|
|
========
|
|
- Compatibility List
|
|
- Quick Install
|
|
- Compiling the Driver
|
|
- Installing the Driver
|
|
- Option parameter
|
|
- Configuration Script Sample
|
|
- Troubleshooting
|
|
|
|
|
|
Compatibility List
|
|
=================
|
|
Adapter Support:
|
|
|
|
D-Link DGE-550T Gigabit Ethernet Adapter.
|
|
D-Link DGE-550SX Gigabit Ethernet Adapter.
|
|
D-Link DL2000-based Gigabit Ethernet Adapter.
|
|
|
|
|
|
The driver support Linux kernel 2.4.7 later. We had tested it
|
|
on the environments below.
|
|
|
|
. Red Hat v6.2 (update kernel to 2.4.7)
|
|
. Red Hat v7.0 (update kernel to 2.4.7)
|
|
. Red Hat v7.1 (kernel 2.4.7)
|
|
. Red Hat v7.2 (kernel 2.4.7-10)
|
|
|
|
|
|
Quick Install
|
|
=============
|
|
Install linux driver as following command:
|
|
|
|
1. make all
|
|
2. insmod dl2k.ko
|
|
3. ifconfig eth0 up 10.xxx.xxx.xxx netmask 255.0.0.0
|
|
^^^^^^^^^^^^^^^\ ^^^^^^^^\
|
|
IP NETMASK
|
|
Now eth0 should active, you can test it by "ping" or get more information by
|
|
"ifconfig". If tested ok, continue the next step.
|
|
|
|
4. cp dl2k.ko /lib/modules/`uname -r`/kernel/drivers/net
|
|
5. Add the following line to /etc/modprobe.d/dl2k.conf:
|
|
alias eth0 dl2k
|
|
6. Run depmod to updated module indexes.
|
|
7. Run "netconfig" or "netconf" to create configuration script ifcfg-eth0
|
|
located at /etc/sysconfig/network-scripts or create it manually.
|
|
[see - Configuration Script Sample]
|
|
8. Driver will automatically load and configure at next boot time.
|
|
|
|
Compiling the Driver
|
|
====================
|
|
In Linux, NIC drivers are most commonly configured as loadable modules.
|
|
The approach of building a monolithic kernel has become obsolete. The driver
|
|
can be compiled as part of a monolithic kernel, but is strongly discouraged.
|
|
The remainder of this section assumes the driver is built as a loadable module.
|
|
In the Linux environment, it is a good idea to rebuild the driver from the
|
|
source instead of relying on a precompiled version. This approach provides
|
|
better reliability since a precompiled driver might depend on libraries or
|
|
kernel features that are not present in a given Linux installation.
|
|
|
|
The 3 files necessary to build Linux device driver are dl2k.c, dl2k.h and
|
|
Makefile. To compile, the Linux installation must include the gcc compiler,
|
|
the kernel source, and the kernel headers. The Linux driver supports Linux
|
|
Kernels 2.4.7. Copy the files to a directory and enter the following command
|
|
to compile and link the driver:
|
|
|
|
CD-ROM drive
|
|
------------
|
|
|
|
[root@XXX /] mkdir cdrom
|
|
[root@XXX /] mount -r -t iso9660 -o conv=auto /dev/cdrom /cdrom
|
|
[root@XXX /] cd root
|
|
[root@XXX /root] mkdir dl2k
|
|
[root@XXX /root] cd dl2k
|
|
[root@XXX dl2k] cp /cdrom/linux/dl2k.tgz /root/dl2k
|
|
[root@XXX dl2k] tar xfvz dl2k.tgz
|
|
[root@XXX dl2k] make all
|
|
|
|
Floppy disc drive
|
|
-----------------
|
|
|
|
[root@XXX /] cd root
|
|
[root@XXX /root] mkdir dl2k
|
|
[root@XXX /root] cd dl2k
|
|
[root@XXX dl2k] mcopy a:/linux/dl2k.tgz /root/dl2k
|
|
[root@XXX dl2k] tar xfvz dl2k.tgz
|
|
[root@XXX dl2k] make all
|
|
|
|
Installing the Driver
|
|
=====================
|
|
|
|
Manual Installation
|
|
-------------------
|
|
Once the driver has been compiled, it must be loaded, enabled, and bound
|
|
to a protocol stack in order to establish network connectivity. To load a
|
|
module enter the command:
|
|
|
|
insmod dl2k.o
|
|
|
|
or
|
|
|
|
insmod dl2k.o <optional parameter> ; add parameter
|
|
|
|
===============================================================
|
|
example: insmod dl2k.o media=100mbps_hd
|
|
or insmod dl2k.o media=3
|
|
or insmod dl2k.o media=3,2 ; for 2 cards
|
|
===============================================================
|
|
|
|
Please reference the list of the command line parameters supported by
|
|
the Linux device driver below.
|
|
|
|
The insmod command only loads the driver and gives it a name of the form
|
|
eth0, eth1, etc. To bring the NIC into an operational state,
|
|
it is necessary to issue the following command:
|
|
|
|
ifconfig eth0 up
|
|
|
|
Finally, to bind the driver to the active protocol (e.g., TCP/IP with
|
|
Linux), enter the following command:
|
|
|
|
ifup eth0
|
|
|
|
Note that this is meaningful only if the system can find a configuration
|
|
script that contains the necessary network information. A sample will be
|
|
given in the next paragraph.
|
|
|
|
The commands to unload a driver are as follows:
|
|
|
|
ifdown eth0
|
|
ifconfig eth0 down
|
|
rmmod dl2k.o
|
|
|
|
The following are the commands to list the currently loaded modules and
|
|
to see the current network configuration.
|
|
|
|
lsmod
|
|
ifconfig
|
|
|
|
|
|
Automated Installation
|
|
----------------------
|
|
This section describes how to install the driver such that it is
|
|
automatically loaded and configured at boot time. The following description
|
|
is based on a Red Hat 6.0/7.0 distribution, but it can easily be ported to
|
|
other distributions as well.
|
|
|
|
Red Hat v6.x/v7.x
|
|
-----------------
|
|
1. Copy dl2k.o to the network modules directory, typically
|
|
/lib/modules/2.x.x-xx/net or /lib/modules/2.x.x/kernel/drivers/net.
|
|
2. Locate the boot module configuration file, most commonly in the
|
|
/etc/modprobe.d/ directory. Add the following lines:
|
|
|
|
alias ethx dl2k
|
|
options dl2k <optional parameters>
|
|
|
|
where ethx will be eth0 if the NIC is the only ethernet adapter, eth1 if
|
|
one other ethernet adapter is installed, etc. Refer to the table in the
|
|
previous section for the list of optional parameters.
|
|
3. Locate the network configuration scripts, normally the
|
|
/etc/sysconfig/network-scripts directory, and create a configuration
|
|
script named ifcfg-ethx that contains network information.
|
|
4. Note that for most Linux distributions, Red Hat included, a configuration
|
|
utility with a graphical user interface is provided to perform steps 2
|
|
and 3 above.
|
|
|
|
|
|
Parameter Description
|
|
=====================
|
|
You can install this driver without any additional parameter. However, if you
|
|
are going to have extensive functions then it is necessary to set extra
|
|
parameter. Below is a list of the command line parameters supported by the
|
|
Linux device
|
|
driver.
|
|
|
|
mtu=packet_size - Specifies the maximum packet size. default
|
|
is 1500.
|
|
|
|
media=media_type - Specifies the media type the NIC operates at.
|
|
autosense Autosensing active media.
|
|
10mbps_hd 10Mbps half duplex.
|
|
10mbps_fd 10Mbps full duplex.
|
|
100mbps_hd 100Mbps half duplex.
|
|
100mbps_fd 100Mbps full duplex.
|
|
1000mbps_fd 1000Mbps full duplex.
|
|
1000mbps_hd 1000Mbps half duplex.
|
|
0 Autosensing active media.
|
|
1 10Mbps half duplex.
|
|
2 10Mbps full duplex.
|
|
3 100Mbps half duplex.
|
|
4 100Mbps full duplex.
|
|
5 1000Mbps half duplex.
|
|
6 1000Mbps full duplex.
|
|
|
|
By default, the NIC operates at autosense.
|
|
1000mbps_fd and 1000mbps_hd types are only
|
|
available for fiber adapter.
|
|
|
|
vlan=n - Specifies the VLAN ID. If vlan=0, the
|
|
Virtual Local Area Network (VLAN) function is
|
|
disable.
|
|
|
|
jumbo=[0|1] - Specifies the jumbo frame support. If jumbo=1,
|
|
the NIC accept jumbo frames. By default, this
|
|
function is disabled.
|
|
Jumbo frame usually improve the performance
|
|
int gigabit.
|
|
This feature need jumbo frame compatible
|
|
remote.
|
|
|
|
rx_coalesce=m - Number of rx frame handled each interrupt.
|
|
rx_timeout=n - Rx DMA wait time for an interrupt.
|
|
If set rx_coalesce > 0, hardware only assert
|
|
an interrupt for m frames. Hardware won't
|
|
assert rx interrupt until m frames received or
|
|
reach timeout of n * 640 nano seconds.
|
|
Set proper rx_coalesce and rx_timeout can
|
|
reduce congestion collapse and overload which
|
|
has been a bottleneck for high speed network.
|
|
|
|
For example, rx_coalesce=10 rx_timeout=800.
|
|
that is, hardware assert only 1 interrupt
|
|
for 10 frames received or timeout of 512 us.
|
|
|
|
tx_coalesce=n - Number of tx frame handled each interrupt.
|
|
Set n > 1 can reduce the interrupts
|
|
congestion usually lower performance of
|
|
high speed network card. Default is 16.
|
|
|
|
tx_flow=[1|0] - Specifies the Tx flow control. If tx_flow=0,
|
|
the Tx flow control disable else driver
|
|
autodetect.
|
|
rx_flow=[1|0] - Specifies the Rx flow control. If rx_flow=0,
|
|
the Rx flow control enable else driver
|
|
autodetect.
|
|
|
|
|
|
Configuration Script Sample
|
|
===========================
|
|
Here is a sample of a simple configuration script:
|
|
|
|
DEVICE=eth0
|
|
USERCTL=no
|
|
ONBOOT=yes
|
|
POOTPROTO=none
|
|
BROADCAST=207.200.5.255
|
|
NETWORK=207.200.5.0
|
|
NETMASK=255.255.255.0
|
|
IPADDR=207.200.5.2
|
|
|
|
|
|
Troubleshooting
|
|
===============
|
|
Q1. Source files contain ^ M behind every line.
|
|
Make sure all files are Unix file format (no LF). Try the following
|
|
shell command to convert files.
|
|
|
|
cat dl2k.c | col -b > dl2k.tmp
|
|
mv dl2k.tmp dl2k.c
|
|
|
|
OR
|
|
|
|
cat dl2k.c | tr -d "\r" > dl2k.tmp
|
|
mv dl2k.tmp dl2k.c
|
|
|
|
Q2: Could not find header files (*.h) ?
|
|
To compile the driver, you need kernel header files. After
|
|
installing the kernel source, the header files are usually located in
|
|
/usr/src/linux/include, which is the default include directory configured
|
|
in Makefile. For some distributions, there is a copy of header files in
|
|
/usr/src/include/linux and /usr/src/include/asm, that you can change the
|
|
INCLUDEDIR in Makefile to /usr/include without installing kernel source.
|
|
Note that RH 7.0 didn't provide correct header files in /usr/include,
|
|
including those files will make a wrong version driver.
|
|
|