src/sys/opencrypto/cryptodev.h, branch releng/6.2

MFC: Synchronize opencrypto framework with HEAD version.

2006-09-04T15:16:14+00:00

/* -> /*- for license, minor formatting changes

2005-01-07T02:29:27+00:00

Add CRD_F_KEY_EXPLICIT which allows the key to be changed per

2004-02-02T17:06:34+00:00

operation, just like it was possible to change the IV.

Currently supported on Hifn and software engines only.

Approved by:	sam@

Push m_apply() and m_getptr() up into the colleciton of standard mbuf

2003-12-15T21:49:41+00:00

routines, and purge them from opencrypto.

Reviewed by:	sam
Obtained from:	NetBSD
Sponsored by:	spc.org

consolidate callback optimization check in one location by adding a flag

2003-06-30T05:09:32+00:00

for crypto operations that indicates the crypto code should do the check
in crypto_done

MFC after:	1 day

Add support to eliminate a context switch per crypto op when using the

2003-06-27T20:07:10+00:00

software crypto device:

o record crypto device capabilities in each session id
o add a capability that indicates if the crypto driver operates synchronously
o tag the software crypto driver as operating synchronously

This commit also introduces crypto session id macros that cleanup their
construction and querying.

Flush my local cache of cryto subsystem fixes:

2003-06-02T23:28:06+00:00

o add a ``done'' flag for crypto operations; this is set when the operation
  completes and is intended for callers to check operations that may complete
  ``prematurely'' because of direct callbacks
o close a race for operations where the crypto driver returns ERESTART: we
  need to hold the q lock to insure the blocked state for the driver and any
  driver-private state is consistent; otherwise drivers may take an interrupt
  and notify the crypto subsystem that it can unblock the driver but operations
  will be left queued and never be processed
o close a race in /dev/crypto where operations can complete before the caller
  can sleep waiting for the callback: use a per-session mutex and the new done
  flag to handle this
o correct crypto_dispatch's handling of operations where the driver returns
  ERESTART: the return value must be zero and not ERESTART, otherwise the
  caller may free the crypto request despite it being queued for later handling
  (this typically results in a later panic)
o change crypto mutex ``names'' so witness printouts and the like are more
  meaningful

o add a CRYPTO_F_CBIMM flag to symmetric ops to indicate the callback

2003-02-23T07:25:48+00:00

  should be done in crypto_done rather than in the callback thread
o use this flag to mark operations from /dev/crypto since the callback
  routine just does a wakeup; this eliminates the last unneeded ctx switch
o change CRYPTO_F_NODELAY to CRYPTO_F_BATCH with an inverted meaning
  so "0" becomes the default/desired setting (needed for user-mode
  compatibility with openbsd)
o change crypto_dispatch to honor CRYPTO_F_BATCH instead of always
  dispatching immediately
o remove uses of CRYPTO_F_NODELAY
o define COP_F_BATCH for ops submitted through /dev/crypto and pass
  this on to the op that is submitted

Similar changes and more eventually coming for asymmetric ops.

MFC if re gives approval.

MFS: crypto timing support; purge usercrypto sysctl (just don't config

2003-01-03T06:16:59+00:00

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

remove CIOGSSESSION (get software session); it was added only for testing

2002-10-07T18:37:31+00:00