or crypto_kdispatch unless the driver is currently blocked. This eliminates
the context switch to the dispatch thread for virtually all requests.
Note that this change means that for software crypto drivers the caller
will now block until the request is completed and the callback is dispatched
to the callback thread (h/w drivers will typically just dispatch the op to
the device and return quickly). If this is an issue we can either implement
a non-blocking interface in the s/w crypto driver or use either the
"no delay" flag in the crypto request or the "software driver" capability
flag to control what to do.
Sponsored by: Vernier Networks
cryptodev or kldunload cryptodev module); crypto statistcs; remove
unused alloctype field from crypto op to offset addition of the
performance time stamp
Supported by: Vernier Networks
for processing callbacks. This closes race conditions caused by locking
too many things with a single mutex.
o reclaim crypto requests under certain (impossible) failure conditions
a consistent interface to h/w and s/w crypto algorithms for use by the
kernel and (for h/w at least) by user-mode apps. Access for user-level
code is through a /dev/crypto device that'll eventually be used by openssl
to (potentially) accelerate many applications. Coming soon is an IPsec
that makes use of this service to accelerate ESP, AH, and IPCOMP protocols.
Included here is the "core" crypto support, /dev/crypto driver, various
crypto algorithms that are not already present in the KAME crypto area,
and support routines used by crypto device drivers.
Obtained from: openbsd
