Copyright (c) 2006 Tom Cosgrove <tom@openbsd.org>
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$FreeBSD: releng/10.2/share/man/man4/man4.i386/glxsb.4 233648 2012-03-29 05:02:12Z eadler $
.Dd June 8, 2008 .Dt GLXSB 4 i386 .Os .Sh NAME .Nm glxsb .Nd Geode LX Security Block crypto accelerator .Sh SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file: d -ragged -offset indent .Cd "device crypto" .Cd "device glxsb" .Ed
p Alternatively, to load the driver as a module at boot time, place the following line in .Xr loader.conf 5 : d -literal -offset indent glxsb_load="YES" .Ed .Sh DESCRIPTION The .Nm 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.
p Driven by periodic checks for available data from the generator, .Nm supplies entropy to the .Xr random 4 driver for common usage.
p .Nm also supports acceleration of AES-128-CBC operations for .Xr 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 .Nm can work with .Xr ipsec 4 . .Sh CAVEAT The .Xr 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 .Nm device driver with AES keys of length != 128 bits. .Sh SEE ALSO .Xr crypto 4 , .Xr intro 4 , .Xr pci 4 , .Xr ipsec 4 , .Xr random 4 , .Xr crypto 9 .Sh HISTORY The .Nm device driver first appeared in .Ox 4.1 . The .Nm device driver was imported into .Fx 7.1 . .Sh AUTHORS .An -nosplit The .Nm device driver was written for .Ox by .An Tom Cosgrove . It was ported to .Fx by .An Patrick Lamaiziere Aq patfbsd@davenulle.org .