NAME¶
ste
—
Sundance Technologies ST201 Fast Ethernet device
driver
SYNOPSIS¶
To compile this driver into the kernel, place the following lines in your kernel
configuration file:
device miibus
device ste
Alternatively, to load the driver as a module at boot time, place the following
line in
loader.conf(5):
DESCRIPTION¶
The
ste
driver provides support for PCI
Ethernet adapters and embedded controllers based on the Sundance Technologies
ST201 PCI Fast Ethernet controller chip.
The Sundance ST201 uses bus master DMA and is designed to be a 3Com Etherlink XL
workalike. It uses the same DMA descriptor structure and is very similar in
operation, however its register layout is different. The ST201 has a 64-bit
multicast hash filter and a single perfect filter entry for the station
address. It supports both 10 and 100Mbps speeds in either full or half duplex
using an MII transceiver.
The
ste
driver supports the following media
types:
- autoselect
- Enable autoselection of the media type and options. The user can manually
override the autoselected mode by adding media options to the
/etc/rc.conf file.
- 10baseT/UTP
- Set 10Mbps operation. The mediaopt option
can also be used to select either
full-duplex or
half-duplex modes.
- 100baseTX
- Set 100Mbps (Fast Ethernet) operation. The
mediaopt option can also be used to
select either full-duplex or
half-duplex modes.
The
ste
driver supports the following media
options:
- full-duplex
- Force full duplex operation.
- half-duplex
- Force half duplex operation.
For more information on configuring this device, see
ifconfig(8).
HARDWARE¶
The
ste
driver supports Sundance Technologies
ST201 based Fast Ethernet adapters and embedded controllers including:
- D-Link DFE-530TXS
- D-Link DFE-550TX
- D-Link DFE-580TX
SYSCTL VARIABLES¶
The following variables are available as both
sysctl(8) variables and
loader(8) tunables:
- dev.ste.%d.int_rx_mod
- Maximum number of time to delay RX interrupts. The valid range is 0 to
209712 in units of 1us, the default is 150 (150us). The value 0
effectively disables the RX interrupt moderation. The resolution of timer
is about 3.2us so finer tuning than 3.2us wouldn't be available. The
interface does not need to be brought down and up again before a change
takes effect.
DIAGNOSTICS¶
- ste%d: couldn't map ports/memory
- A fatal initialization error has occurred.
- ste%d: couldn't map interrupt
- A fatal initialization error has occurred.
- ste%d: watchdog timeout
- The device has stopped responding to the network, or there is a problem
with the network connection (cable).
- ste%d: no memory for rx list
- The driver failed to allocate an mbuf for the receiver ring.
- ste%d: no memory for tx list
- The driver failed to allocate an mbuf for the transmitter ring when
allocating a pad buffer or collapsing an mbuf chain into a cluster.
- ste%d: chip is in D3 power state -- setting to D0
- This message applies only to adapters which support power management. Some
operating systems place the controller in low power mode when shutting
down, and some PCI BIOSes fail to bring the chip out of this state before
configuring it. The controller loses all of its PCI configuration in the
D3 state, so if the BIOS does not set it back to full power mode in time,
it will not be able to configure it correctly. The driver tries to detect
this condition and bring the adapter back to the D0 (full power) state,
but this may not be enough to return the driver to a fully operational
condition. If you see this message at boot time and the driver fails to
attach the device as a network interface, you will have to perform a
second warm boot to have the device properly configured.
Note that this condition only occurs when warm booting from another
operating system. If you power down your system prior to booting
FreeBSD, the card should be configured
correctly.
SEE ALSO¶
altq(4),
arp(4),
miibus(4),
netintro(4),
ng_ether(4),
polling(4),
vlan(4),
ifconfig(8)
Sundance ST201 data sheet,
http://www.sundanceti.com.
HISTORY¶
The
ste
device driver first appeared in
FreeBSD 3.0.
AUTHORS¶
The
ste
driver was written by
Bill Paul
⟨wpaul@ee.columbia.edu⟩.