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EP80579 Software for Security Applications on Intel
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QuickAssist Technology
PG August 2009
34 Order Number: 320183
7.4 Boot Time Configuration Instructions
A user space configuration program (asd_ctl) is included in the release package and is
run automatically as part of the load script.
The configuration file /etc/icp_asd.conf is a simple configuration file containing the
user-specified system resource variables and the values to be read into / set by the
kernel in the configuration table.
The syntax for updating the configuration file is as follows:
# comment
token = value
token = value # comment
Blank lines are ignored and white spaces before and after a token or value are ignored.
Comments are denoted by the ‘#’, any text read after a # symbol is ignored.
Note: If the same system resource variable is specified more than once in the configuration
file, the last value read will be the one which is set in the configuration table.
A warning message will be printed if invalid syntax in the configuration file is
encountered. The default values will be applied to all system resource variables that are
not specified in the configuration file.
If an invalid value is specified for a system resource variable, a warning message will
be printed and the default value will be applied.
Refer to Section 7.3.1 for a list of system resource variables that can be configured in
the /etc/icp_asd.conf configuration file.
Example 1. Sample Configuration File
#icp_asd.conf example
#
NUM_CONCURRENT_LAC_SYMMETRIC_REQUESTS= 768
NUM_CONCURRENT_LAC_ASYMMETRIC_REQUESTS= 512
LAC_RANDOM_CACHE_SIZE= 131070
ET_RING_LOOKASIDE_INTERRUPT_COALESCING_ENABLE = 1
ET_RING_LOOKASIDE_COALESCE_TIMER_NS = 10000
ET_RING_MSI_INTERRUPT_ENABLE = 0
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