kernel - Change callout in struct ccb_hdr

* Change the callout declaration in struct ccb_hdr from an embedded
structure to a pointer, add padding to get the whole structure to its
original size

kernel - Change callout in struct ccb_hdr

* Change the callout declaration in struct ccb_hdr from an embedded
structure to a pointer, add padding to get the whole structure to its
original size (prior to the recent callout patch).

* This removes an improper ABI dependency on the kernel struct callout
structure which was causing 'camcontrol', and 'smartctl' (from
smartmontools) to fail.

Testing: dillon, tuxillo

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kernel/ncr: Fix double assignment.

Taken-from: FreeBSD

kernel/ncr: Remove unused variable.

kernel: Remove some variables that are only set but never used.

Reported-by: dcb
Dragonfly-bug: <https://bugs.dragonflybsd.org/issues/3019>

kernel: Add 'static' to some function definitions.

The declarations already have it, so no functional difference.

kernel/ncr: s/long signed/long/

Remove a bunch of unnecessary semicolons.

kernel - Change time_second to time_uptime for all expiration calculations

* Vet the entire kernel and change use cases for expiration calculations
using time_second to use time_uptime instead.

*

kernel - Change time_second to time_uptime for all expiration calculations

* Vet the entire kernel and change use cases for expiration calculations
using time_second to use time_uptime instead.

* Protects these expiration calculations from step changes in the wall time,
particularly needed for route table entries.

* Probably requires further variable type adjustments but the use of
time_uptime instead if time_second is highly unlikely to ever overrun
any demotions to int still present.

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kernel: Use DEVMETHOD_END in the drivers.

kernel: Remove some unused variables in RAID and disk drivers.

kernel: Remove newlines from the panic messages that have one.

panic() itself will add a newline.

kernel: Use NULL for pointers.

kernel/disk drivers: Add some missing crit_exit()s.

Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

kernel - Implement a contiguous memory reserve for contigmalloc()

* We initially reserve the lower 1/4 of memory or 256MB, whichever is
smaller. The ALIST API is used to manage the memory.

* Onc

kernel - Implement a contiguous memory reserve for contigmalloc()

* We initially reserve the lower 1/4 of memory or 256MB, whichever is
smaller. The ALIST API is used to manage the memory.

* Once device initialization is complete, and before int is executed,
we reduce the reserve and return pages to the normal VM paging queues.
The reserve is reduced to ~16MB or 1/16 total memory, whichever is
smaller.

* This can be adjusted with a tunable 'vm.dma_reserved'.

* contigmalloc() now tries the DMA reserve first. If it fails it falls
back to the original contigmalloc() code. contigfree() determines whether
the pages belong to the DMA reserve or not and will either return them
to the reserve or free them to the normal paging queues as appropriate.

VM pages in the reserve are left wired and not busy, and they are returned
to the reserve in the same state. This greatly simplifies operations that
act on the reserve.

* Fix various bits of code that contigmalloc()'d but then kfree()'d instead
of contigfree()'d.

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kernel: Use NULL for DRIVER_MODULE()'s evh & arg (which are pointers).

This is just cosmetics for easier reading.

Fix typo: aquire -> acquire.

Generally use NULL instead of explicitly casting 0 to some pointer type (part2).

Sync CAM with FreeBSD using lockmgr locks instead of mutexes.
Note: This is mostly a code sync with FreeBSD which improves stability
in addition to the items listed below. This provides a framework

Sync CAM with FreeBSD using lockmgr locks instead of mutexes.
Note: This is mostly a code sync with FreeBSD which improves stability
in addition to the items listed below. This provides a framework for
releasing the mplock, but for now it's still there.

Add an xpt_print function to reduce most of the xpt_print_path/printf
pairs. Convert the core code to use it.

Initial cut at Basic Domain Validation.

Make cam_xpt's pronouncements match camcontrol (Tagged -> Command) Queueing.

Pay attention to return value from xpt_bus_register in xpt_init.

Add an xpt_rescan function and a thread that will field rescan requests.
The purpose of this is to allow a SIM (or other entities) to request a bus
rescan and have it then fielded in a different (process) context from the
caller.

Check the return value from cam_periph_acquire.

Drop the periph/sim lock when calling disk_destroy().

Drop the topology lock before calling the periph oninvalidate and dtor
vectors.

For the XPT_SASYNC_CB operation, only decouple the broadcast to the bus
and device lists instead of decoupling the whole operation. This avoids
problems with SIMs going away.

Split the camisr into per-SIM done queues. This optimizes the locking a
little bit and allows for direct dispatch of the doneq from certain
contexts that would otherwise face recursive locking problems.

Zero the CCBs when mallocing them.

Only schedule the xpt_finishconfig_task once.

Eliminate the use of M_TEMP.

Add a helper function for registering async callbacks.

Release the bus reference that is acquired when doing a CAMIOCOMMAND ioctl.

Zero scsi_readcapacity allocations so we can really tell if there has
been data returned.

Remove duplicate includes and fix typos.

Add a bunch of definitions and structures to support newer drivers.

When probing a newly found device, don't automatically assume that the
device supports retrieving a serial number. Instead, first query the
list of VPD pages it does support, and only query the serial number if
it's supported, else silently move on. This eliminates a lot of noise
during verbose booting, and will likely eliminate the need for most
NOSERIAL quirks.

Reduce diffs from FreeBSD.

Obtained-from: FreeBSD

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It's "useful" not "usefull".

Ansify some remaining function definitions in the kernel.

Found-by: -Wold-style-definition

Make CAM_NEW_TRAN_CODE default.

As previously mentioned, this makes a huge performance difference for one
of my disks, and future work depends on this change.

Obtained-from: FreeBSD

Fixes for CAM_NEW_TRAN_CODE.

This commit is taken from a FreeBSD changeset, and is not intended to
be comprehensive. Some drivers will still not compile/work with the
CAM_NEW_TRAN_CODE option, but

Fixes for CAM_NEW_TRAN_CODE.

This commit is taken from a FreeBSD changeset, and is not intended to
be comprehensive. Some drivers will still not compile/work with the
CAM_NEW_TRAN_CODE option, but this opens the door for wider testing.

Obtained-from: FreeBSD

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Rename printf -> kprintf in sys/ and add some defines where necessary
(files which are used in userland, too).

Rename sprintf -> ksprintf
Rename snprintf -> knsprintf

Make allowances for source files that are compiled for both userland and
the kernel.