CVS log for src/sys/dev/cgdvar.h

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Constify.

Tidy up includes.

Merge changes from current as of 20200406

Pull up following revision(s) (requested by riastradh in ticket #823):

	sys/dev/cgdvar.h: revision 1.19
	sys/dev/cgd.c: revision 1.122
	sys/dev/cgd.c: revision 1.123
	sys/dev/cgd.c: revision 1.124

Defer crypto operations to a workqueue and make it utilize all CPUs.

Make device mpsafe.

Some code cleanup.

Don't wait for data buffer.

cgd: switch from malloc(9) to kmem(9)
XXX might be worthwhile to use pool_cache(9) in the write path

Defer crypto operations to a workqueue and make it utilize all CPUs.
Make device mpsafe.
Some code cleanup.

update from HEAD

Sync with HEAD

More on PR 41200: headers that declare ioctls should include sys/ioccom.h.
This covers (I think) all the MI headers outside of external/ (and dist/).

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Remove a simplelock and replace with a kmutex

resync with head

sync with (a bit old) head

add cgdconfig -l like vnconfig -l

sync with head

sync to latest -current.

Modify dksubr.c to add a function that sets the disk properties in
the drvctl framework.  And call this new functionality from cgd(4),
the consumer of dksubr.c.  We do this to allow gpt(8) to be able
to label cgd(4) disks.  We also add in some DIOCGSECTORSIZE logic
and we ensure that the WEDGE ioctls are not called on either
uninitialised disks or disks which have not been opened for write
access.

sync with head

Make cgd(4) into a detachable pseudo-device.  Thanks, Jan Danielsson,
for the patches!

I've lightly tested the basics: create cgd0 on vnd0d, initialize with
zeros, newfs /dev/cgd0a, mount, copy files on, unmount, drvctl -d
cgd0.  Works fine.  I also shutdown with a cgd0 configured: detached as
expected.

avoid variable array stack allocation by enforcing and allocating always the
maximum.

sync with head.

Sync with HEAD.

Sync with HEAD.

Merge in changes between wrstuden-revivesa-base-2 and
wrstuden-revivesa-base-3.

PR/39525: Joachim Schueth, Frederik Sausmikat:
cgd inadvertently encrypts blkno eight times to generate IV

Sync with HEAD.

sync with head.

sync with head.

Remove clause 3 and 4 from TNF licenses

Sync with HEAD.

sync with head

sync with HEAD

Sync with HEAD

Start detangling lock.h from intr.h. This is likely to cause short term
breakage, but the mess of dependencies has been regularly breaking the
build recently anyhow.

sync with head.

Sync with HEAD.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

Sync with head.

Pull up following revision(s) (requested by jdc in ticket #326):
	sys/dev/cgdvar.h: revisions 1.6-1.8
int -> size_t, fix build on  64-bit architectures.

sync with head.

sync with head.

revert previous commit (size_t -> int change). Thanks cube.

restore binary compatibility.

int -> size_t

merge ktrace-lwp.

Sync with HEAD. Here we go again...

no reason for those not to be const.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD.

Protect against multiple inclusion.

Sync with HEAD

Modified the dksubr routines to:

	o  expect the disk's start routine to return an int.  If the
	   int is non-zero, we enqueue the request and try again
	   later.
	o  have a dk_start() routine which runs the request queue.
	o  have a dk_iodone() function which should be called by the
	   driver using the framwork from its iodone.  dk_iodone will
	   retry the queue since presumably further progress may be
	   possible once a request is complete.  It is required that
	   the underlying driver have the resources to keep at least
	   one transaction in flight at any time.

Modified cgd to:

	o  be able to keep one transaction in flight at any time
	   (almost) by keeping a buffer of size MAXPHYS in its softc
	   and use it.

We still need to make the cgd_cbufpool per device rather than global
and provide a low water mark for it.

Addresses PR: kern/24715
(at least according to the submitter.)

Catch up to -current.

file cgdvar.h was added on branch nathanw_sa on 2002-10-18 02:41:27 +0000

The CryptoGraphic Disk Driver.