NAME¶
stge
—
Sundance/Tamarack TC9021 Gigabit Ethernet adapter
driver
SYNOPSIS¶
To compile this driver into the kernel, place the following lines in your kernel
configuration file:
device miibus
device stge
Alternatively, to load the driver as a module at boot time, place the following
line in
loader.conf(5):
DESCRIPTION¶
The
stge
device driver provides support for
various NICs based on the Sundance/Tamarack TC9021 Gigabit Ethernet controller
chip.
The Sundance/Tamarack TC9021 is found on the D-Link DGE-550T and the Antares
Microsystems Gigabit Ethernet board. It uses an external PHY or an external
10-bit interface.
All NICs supported by the
stge
driver have
TCP/UDP/IP checksum offload for both receive and transmit, hardware VLAN tag
stripping/insertion features, and receive interrupt moderation mechanism as
well as a 64-bit multicast hash filter. The Sundance/Tamarack TC9021 supports
TBI (ten bit interface) and GMII transceivers, which means it can be used with
either copper or 1000baseX fiber applications.
The Sundance/Tamarack TC9021 also supports jumbo frames, which can be configured
via the interface MTU setting. Selecting an MTU larger than 1500 bytes with
the
ifconfig(8) utility configures the adapter to
receive and transmit jumbo frames.
The
stge
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
rc.conf(5).
10baseT/UTP
- Set 10Mbps operation. The ifconfig(8)
mediaopt
option can also be used to
select either full-duplex
or
half-duplex
modes.
100baseTX
- Set 100Mbps (Fast Ethernet) operation. The
ifconfig(8)
mediaopt
option can also be used to
select either full-duplex
or
half-duplex
modes.
1000baseTX
- Set 1000baseTX operation over twisted pair. The Sundance/Tamarack supports
1000Mbps in
autoselect
mode only.
The
stge
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
stge
driver provides support for various
NICs based on the Sundance/Tamarack TC9021 based Gigabit Ethernet controller
chips, including:
- Antares Microsystems Gigabit Ethernet
- ASUS NX1101 Gigabit Ethernet
- D-Link DL-4000 Gigabit Ethernet
- IC Plus IP1000A Gigabit Ethernet
- Sundance ST-2021 Gigabit Ethernet
- Sundance ST-2023 Gigabit Ethernet
- Sundance TC9021 Gigabit Ethernet
- Tamarack TC9021 Gigabit Ethernet
SYSCTL VARIABLES¶
The following variables are available as both
sysctl(8) variables and
loader(8) tunables:
- dev.stge.%d.rxint_nframe
- Number of frames between RxDMAComplete interrupts. The accepted range is 1
to 255, default value is 8 frames. The interface has to be brought down
and up again before a change takes effect.
- dev.stge.%d.rxint_dmawait
- Maximum amount of time to wait in 1us increments before issuing an Rx
interrupt if the number of frames received is less than
rxint_nframe. The accepted range is 0 to
4194, default value is 30 microseconds. The interface has to be brought
down and up again before a change takes effect.
SEE ALSO¶
altq(4),
arp(4),
miibus(4),
netintro(4),
ng_ether(4),
polling(4),
vlan(4),
ifconfig(8)
HISTORY¶
The
stge
driver was ported from
NetBSD and first appeared in
FreeBSD
6.2. The
NetBSD version was written by
Jason R. Thorpe
⟨thorpej@NetBSD.org⟩.
AUTHORS¶
The
stge
driver was ported by
Pyun YongHyeon
⟨yongari@FreeBSD.org⟩.