table of contents
VX(4) | Device Drivers Manual (i386) | VX(4) |
NAME¶
vx
—
3Com EtherLink III / Fast EtherLink III (3c59x) Ethernet
driver
SYNOPSIS¶
To compile this driver into the kernel, place the following line in your kernel configuration file:device vx
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_vx_load="YES"
DEPRECATION NOTICE¶
Thevx
driver is not present in FreeBSD
13.0 and later. See
https://github.com/freebsd/fcp/blob/master/fcp-0101.md for more information.
DESCRIPTION¶
Thevx
driver provides support for the 3Com
“Vortex” chipset.
The medium selection can be influenced by the following link flags to the ifconfig(8) command:
- link0
- Use the AUI port.
- link1
- Use the BNC port.
- link2
- Use the UTP port.
HARDWARE¶
Thevx
driver supports the following cards:
- 3Com 3c590 EtherLink III PCI
- 3Com 3c595 Fast EtherLink III PCI in 10 Mbps mode
DIAGNOSTICS¶
All other diagnostics indicate either a hardware problem or a bug in the driver.SEE ALSO¶
arp(4), netintro(4), ng_ether(4), ifconfig(8)HISTORY¶
Thevx
device driver first appeared in
FreeBSD 2.1. It was derived from the
ep
driver, from which it inherits most of its
limitations.
AUTHORS¶
Thevx
device driver and this manual page were written
by Fred Gray
<fgray@rice.edu>, based
on the work of Herb Peyerl and with the assistance of
numerous others.
CAVEATS¶
Some early-revision 3c590 cards are defective and suffer from many receive overruns, which cause lost packets. The author has attempted to implement a test for it based on the information supplied by 3Com, but the test resulted mostly in spurious warnings.The performance of this driver is somewhat limited by the fact that it uses only polled-mode I/O and does not make use of the bus-mastering capability of the cards.
BUGS¶
Thevx
driver is known not to reset the adapter
correctly following a warm boot on some systems.
The vx
driver has not been exhaustively
tested with all the models of cards that it claims to support.
October 24, 2018 | Linux 4.19.0-10-amd64 |