|FE(4)||Device Drivers Manual (i386)||FE(4)|
SYNOPSIS¶To compile this driver into the kernel, place the following line in your kernel configuration file:
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
feis a network device driver for Ethernet adapters based on Fujitsu MB86960A, MB86965A, or other compatible chips.
The driver provides automatic I/O port address configuration and automatic IRQ configuration, when used with suitable adapter hardware.
The driver works with program I/O data transfer technique. It gives a fair performance. Shared memory is never used, even if the adapter has one.
It currently works with Fujitsu FMV-180 series for ISA, Allied-Telesis AT1700 series and RE2000 series for ISA, and Fujitsu MBH10302 PC card.
Parameters¶In the /boot/device.hints file, two parameters, port and irq, must be specified to reflect adapter hardware settings. Another parameter flags can be specified to provide additional configuration as an option.
The port parameter specifies a base I/O port address of the adapter. It must match with the hardware setting of the adapter. The port may be left unspecified by removing
The irq parameter specifies an IRQ number used by the adapter. It must match the hardware setting of the adapter. Irq may be left unspecified by removing
The flags is a numeric value which consists of a combination of various device settings. The following flags are defined in the current version. To specify two or more settings for a device, use a numeric sum of each flag value. Flag bits not specified below are reserved and must be set to 0. Actually, each bit is either just ignored by the driver, or tested and used to control undocumented features of the driver. Consult the source program for undocumented features.
- These flag bits are used to initialize DLCR6 register of MB86960A/MB86965A
chip, when the
0x0080bit of the flags is set. See below for more about DLCR6 override feature. The
0x007Fflag bits must be 0 unless the
0x0080bit is set, to maintain the compatibility with future versions of the driver.
- This flag overrides the default setting to the DLCR6 register of MB86960A/MB86965A chip by a user supplied value, which is taken from the lower 7 bits of the flag value. This is a troubleshooting flag and should not be used without understanding of the adapter hardware. Consult the Fujitsu manual for more information on DLCR6 settings.
HARDWARE¶Controllers and cards supported by the
- Allied Telesis RE1000, RE1000Plus, ME1500 (110-pin)
- CONTEC C-NET(98)P2, C-NET (9N)E (110-pin), C-NET(9N)C (ExtCard)
- CONTEC C-NET(PC)C PC Card Ethernet
- Eagle Tech NE200T
- Eiger Labs EPX-10BT
- Fujitsu FMV-J182, FMV-J182A
- Fujitsu MB86960A, MB86965A
- Fujitsu MBH10303, MBH10302 PC Card Ethernet
- Fujitsu Towa LA501 Ethernet
- HITACHI HT-4840-11 PC Card Ethernet
- NextCom J Link NC5310
- RATOC REX-5588, REX-9822, REX-4886, and REX-R280
- RATOC REX-9880/9881/9882/9883
- TDK LAC-98012, LAC-98013, LAC-98025, LAC-9N011 (110-pin)
- TDK LAK-CD011, LAK-CD021, LAK-CD021A, LAK-CD021BX
- Ungermann-Bass Access/PC N98C+(PC85152, PC85142), Access/NOTE N98(PC86132) (110-pin)
FEATURES SPECIFIC TO HARDWARE MODELS¶The
fedriver has some features and limitations which depend on adapter hardware models. The following is a summary of these dependencies.
Fujitsu FMV-180 series adapters¶Both automatic IRQ detection and automatic I/O port address detection is available with these adapters.
Automatic I/O port address detection feature of
fe works mostly fine for FMV-180 series. It works
even if there are two or more FMV-180s in a system. However, some
combination of other adapters may confuse the driver. It is recommended to
explicitly specify port when you experience some
difficulties with hardware probe.
Automatic IRQ detection feature of
works reliably for FMV-180 series. It is recommended to explicitly specify
irq always for FMV-180. The hardware setting of IRQ is
read from the configuration EEPROM on the adapter, even when the kernel
config file specifies an IRQ value. The driver will generate a warning
message, if the IRQ setting specified in
/boot/device.hints does not match one stored in
EEPROM. Then, it will use the value specified in the file. (This behavior
has been changed from the previous releases.)
Allied-Telesis AT1700 series and RE2000 series adapters¶Automatic I/O port address detection is available with Allied-Telesis AT1700 series and RE2000 series, while it is less reliable than FMV-180 series. Using the feature with Allied-Telesis adapters is not recommended.
Automatic IRQ detection is also available with some limitation.
fe driver tries to get IRQ setting from the
configuration EEPROM on the board, if irq is not
specified in /boot/device.hints. Unfortunately,
AT1700 series and RE2000 series seems to have two types of models; One type
allows IRQ selection from 3/4/5/9, while the other from 10/11/12/15.
Identification of the models are not well known. Hence, automatic IRQ
detection with Allied-Telesis adapters may not be reliable. Specify an exact
IRQ number if any troubles are encountered.
Differences between AT1700 series and RE2000 series or minor models in those series are not recognized.
Fujitsu MBH10302 PC card¶The
fedriver supports Fujitsu MBH10302 and compatible PC cards. It requires the PC card (PCMCIA) support package.
SEE ALSO¶netstat(1), ed(4), netintro(4), ng_ether(4), ifconfig(8)
fedriver appeared in FreeBSD 2.0.5.
AUTHORS, COPYRIGHT AND DISCLAIMER¶The
fedriver was originally written and contributed by M. Sekiguchi <firstname.lastname@example.org>, following the
eddriver written by David Greenman. PC card support in
feis written by Hidetoshi Kimura <email@example.com>. This manual page was written by M. Sekiguchi.
All Rights Reserved, Copyright (C) Fujitsu Limited 1995
This document and the associated software may be used, modified, copied, distributed, and sold, in both source and binary form provided that the above copyright, these terms and the following disclaimer are retained. The name of the author and/or the contributor may not be used to endorse or promote products derived from this document and the associated software without specific prior written permission.
THIS DOCUMENT AND THE ASSOCIATED SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR THE CONTRIBUTOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENT AND THE ASSOCIATED SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
BUGS¶Following are major known bugs:
Statistics on the number of collisions maintained by the
fe driver is not accurate; the
-i option of netstat(1) shows
slightly less value than true number of collisions.
More mbuf clusters are used than expected. The packet receive routine has an intended violation against the mbuf cluster allocation policy. The unnecessarily allocated clusters are freed within short lifetime, and it will not affect long term kernel memory usage.
Although XNS and IPX support is included in the driver, it has never been tested and it is expected to have a lot of bugs.
|July 16, 2005||Linux 4.9.0-9-amd64|