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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]
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
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-duplex.
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
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 cor-
rupting 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 dis-
ables 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 band-
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 - email@example.com
Linux PC Card control software: David Hinds - firstname.lastname@example.org et al.
pcmcia-cs 2001/06/22 01:12:38 3C575_CB(4)
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