sys_attrs_lfa(5)sys_attrs_lfa(5)NAMEsys_attrs_lfa - lfa subsystem attributes
DESCRIPTION
This reference page lists and describes attributes for the lfa (lfa)
kernel subsystem. This subsystem is used by the HE622 and HE155 Asyn‐
chronous Transfer Mode (ATM) adapters.
Refer to the sys_attrs(5) reference page for an introduction to the
topic of kernel subsystem attributes.
The version number of the lfa driver. This is a read-only
attribute, and cannot be changed.
A value that enables (1) or disables (0) the awakening of a sep‐
arate thread to handle real interrupt service work by the inter‐
rupt service routine.
Do not modify the default setting for this attribute unless
instructed to do so by Hewlett-Packard Company support personnel
or by patch kit documentation.
Default value: 1 (enabled)
The number of Media Access Control (MAC) addresses to generate
for the lfa adapter. The adapter has only one MAC address, but
the driver can generate unique locally administered addresses up
to the number specified.
Default value: 16 (addresses)
Minimum value: 1
Maximum value: 64
The number of bits to use for the Virtual Path Identifier (VPI)
field. A total of 12 bits can be divided between the VPI and VCI
(Virtual Channel Identifier) fields.
The mapping of the valid num_vpi_bits values to the different
VPI and VCI ranges are as follows:
──────────────────────────────
Value VPI Range VCI Range
──────────────────────────────
0 0 0-4095
1 0-1 0-2047
2 0-3 0-1023
3 0-7 0-511
4 0-15 0-255
5 0-31 0-127
6 0-63 0-63
7 0-127 0-31
8 0-255 0-15
──────────────────────────────
Default value: 0 (bits), or 12 bits for the VCI
Minimum value: 0
Maximum Value: 8
A value that enables (1) or disables (0) the use of 64-bit data
transfers by the adapter. When installed in a 64-bit PCI slot,
the HE622 and HE155 adapters can perform 64-bit data transfers.
To force the driver to use 32-bit data transfers, set this
attribute to 0.
Do not modify the default setting for this attribute unless
instructed to do so by Hewlett-Packard Company support personnel
or by patch kit documentation.
Default value: 0 (disabled)
SEE ALSOsys_attrs(5)
Asynchronous Transfer Mode
sys_attrs_lfa(5)
