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SAFE(4) Device Drivers Manual SAFE(4)

SafeNet crypto accelerator

safe* at pci?

The safe driver supports cards containing any of the following chips:
SafeNet 1141
The original chipset. Supports DES, Triple-DES, AES, MD5, and SHA-1 symmetric crypto operations, RNG, public key operations, and full IPsec packet processing.
SafeNet 1741
A faster version of the 1141.
The safe driver registers itself to accelerate DES, Triple-DES, AES, MD5-HMAC, and SHA1-HMAC operations for ipsec(4) and crypto(4).
Additionally, the driver registers with crypto(4) to accelerate modular exponentiation of up to 2048-bit operands and provides input to the random(4) subsystem.

safe%d: Reduce max DMA size to %u words for rev %u.%u
The 1.0 silicon has major pci(4) bugs and may lock the bus completely. There is no easy workaround.

crypt(3), crypto(4), intro(4), ipsec(4), pci(4), random(4), crypto(9)

Early silicon revisions can wedge the PCI bus.
May 31, 2007 OpenBSD-5.2