src/sys/opencrypto, branch release/5.4.0

MFC: /*- and related license changes

2005-01-31T23:27:04+00:00

Don't acquire Giant in cryptof_close(), as the code is intended to be

2004-08-10T03:26:17+00:00

able to run MPsafe (and appears to be MPsafe).

Discussed with (some time ago):	sam

Push acquisition of Giant from fdrop_closed() into fo_close() so that

2004-07-22T18:35:43+00:00

individual file object implementations can optionally acquire Giant if
they require it:

- soo_close(): depends on debug.mpsafenet
- pipe_close(): Giant not acquired
- kqueue_close(): Giant required
- vn_close(): Giant required
- cryptof_close(): Giant required (conservative)

Notes:

  Giant is still acquired in close() even when closing MPSAFE objects
  due to kqueue requiring Giant in the calling closef() code.
  Microbenchmarks indicate that this removal of Giant cuts 3%-3% off
  of pipe create/destroy pairs from user space with SMP compiled into
  the kernel.

  The cryptodev and opencrypto code appears MPSAFE, but I'm unable to
  test it extensively and so have left Giant over fo_close().  It can
  probably be removed given some testing and review.

Do the dreaded s/dev_t/struct cdev */

2004-06-16T09:47:26+00:00

Bump __FreeBSD_version accordingly.

add missing #include

2004-05-30T20:27:19+00:00

kthread_exit() no longer requires Giant, so don't force callers to acquire

2004-03-05T22:42:17+00:00

Giant just to call kthread_exit().

Requested by:	many

Device megapatch 4/6:

2004-02-21T21:10:55+00:00

Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.

Do not aggressively unroll the AES implementation, in non-benchmarking use

2004-02-04T08:44:10+00:00

it is same speed on small cache cpus and slower on largecache cpus.

Approved by:	sam@

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@

style(9) pass and type fixups.

2003-12-16T14:13:47+00:00

Submitted by:	bde