Provided by: pcmcia-cs_3.2.8-5.2ubuntu5_i386
3c575_cb - 3Com 3c575 Etherlink XL 10/100 CardBus device driver
insmod 3c575_cb.o [debug=n] [rx_copybreak=n] [max_interrupt_work=n]
[use_hw_csums=n] [down_poll_rate=n] [auto_polarity=n]
3c575_cb is the low-level Card Services driver for the 3Com 3c575
EtherLink XL CardBus series ethernet adapters. When this driver is
attached to a card, it allocates the next available ethernet device
(eth0..eth#). This information for this card will be reported in the
kernel log file, and the device name passed on to cardmgr(8).
The driver uses the N-Way autonegotiating transceiver to negotiate the
speed and duplex of the network link. If the link partner does not
support negotiation, only the link speed is detected. To monitor or
override the autonegotiation process, see mii-tool(8).
If the on-card EEPROM is programmed for a full-duplex (FD) link, only
FD media types are advertised and the link is assumed to be full-
Set the breakpoint for copying incoming frames into reduced-
sized packet buffers. The default value of 200 bytes is
reasonable for most systems.
This option selects the maximum amount of work handled during
each interrupt. Each received packet counts as one unit of
work, as does updating statistics counters and handling errors.
The default value of 32 should only need to be increased on very
slow machines. An occasional "too much work in interrupt"
message is not a problem.
Controls use of an adapter’s on-board TCP/IP checksum
verification for incoming packets. This is on by default;
setting to 0 disables hardware checksums. It may be useful to
disable hardware checksums if it is suspected that something is
corrupting data on its way from the card to the CPU.
For Cyclone and Tornado chipsets, this is the rate at which the
card polls the transmit ring for new packets. The value is in
units of 320 ns; a value of 0 disables polling. The default is
20 (6.4 us), and the maximum allowed value is 127. Polling is
more efficient but can consume a significant amount of PCI bus
This flag can be used to control the transceiver’s auto polarity
detection capability. Some Cisco Catalyst switches are known to
interact badly with this feature in 10baseT mode. It defaults
to 1 (enabled).
This driver: Donald Becker - firstname.lastname@example.org
Linux PC Card control software: David Hinds -
email@example.com et al.
cardmgr(8), pcmcia(5), mii-tool(8).