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Version: 326895 (ubuntu - 08/07/09)

Section: 4 (Pilotes et protocoles réseau)

BSD mandoc


glxsb - Geode LX Security Block crypto accelerator


To compile this driver into the kernel, place the following lines in your kernel configuration file:
device crypto device glxsb

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:



The driver supports the security block of the Geode LX series processors. The Geode LX is a member of the AMD Geode family of integrated x86 system chips.

Driven by periodic checks for available data from the generator, supplies entropy to the random(4) driver for common usage.

also supports acceleration of AES-128-CBC operations for crypto(4). It also registers itself to accelerate other HMAC algorithms, although there is no hardware acceleration for those algorithms. This is only needed so can work with ipsec(4).


The crypto(9) framework will fail to open the crypto session on the device if the AES key's length is != 128 bits. This prevents the use of the device driver with AES keys of length != 128 bits.


crypto(4), intro(4), pci(4), ipsec(4), random(4), crypto(9)


The device driver first appeared in Ox 4.1 . The device driver was imported into Fx 8.0 .


An -nosplit The device driver was written for Ox by An Tom Cosgrove . It was ported to Fx by An Patrick Lamaiziere Aq