Pcnet_cs is a driver for all NS8390-based PCMCIA ethernet cards.
It can use either polled IO or a shared memory window to exchange data
with the card. The driver first tests for a shared memory buffer,
falling back on polled IO if the memory test fails. When this driver
is bound to a card, it allocates the next available ethernet device
(eth0..eth#). This device name will be reported in the
kernel log file, and passed on to cardmgr(8) .
PARAMETERS
pc_debug= n
Selects the PCMCIA debugging level. This parameter is only available
if the module is compiled with debugging enabled. A non-zero value
enables debugging.
irq_list= i,j,...
Specifies the set of interrupts that may be allocated by this driver.
if_port= n
Selects the transceiver type, for Socket EA and IBM CCAE cards. 1 is
10baseT (twisted pair), and 2 is 10base2 (BNC, or thin net). The
default is 1 (10baseT).
full_duplex= n
For DL10022 based cards where pcnet_cs can't find the MII interface,
this option permits manual control of the duplex setting. 1 is full
duplex, and 0 is half duplex; the default is 0.
use_big_buf= n
For Socket EA cards, a flag indicating if the driver should use the
large (64K) packet buffer. The default is 1 (true).
use_shmem= n
Selects shared memory versus polled IO mode for packet transfers. The
default is -1, meaning to use the card's CIS information to decide.
mem_speed= n
Sets the access speed of the shared memory window, in nanoseconds.
The default is 0 (i.e., no extra wait states). Values of up to 1000
are legal.
delay_output= n
Specifies that a delay should be inserted after a polled IO block
output. This is turned on by default for Accton and Socket EA cards.
delay_time= n
Specifies the length of the delay_output delay, in microseconds.
The default is 4.
hw_addr= n,n,n,n,n,n
For cards whose hardware ethernet addresses can't be identified by the
current driver, this is a hack for hardwiring a specific address. The
argument should consist of exactly six byte-sized numbers, separated
by commas, with no spaces. Numbers may be in decimal or hex ('0xNN').
DIAGNOSTICS
pcnet_cs: this is an AX88190 card!
Indicates that this card is based on the Asix AX88190 chipset, which
requires the axnet_cs driver.
eth#: interrupt(s) dropped!
Indicates that the driver did not receive an interrupt notification
for some reason. The driver will poll the card (with a significant
performance penalty) if the problem persists. The most likely cause
is an interrupt conflict and/or host bridge configuration problem.
eth#: MII is missing!
Indicates that the driver expects this card to have a ``Media
Independent Interface'' for link speed and duplex selection, but could
not find it.
