kernel/cam: Make si_iosize_max overridable by drivers.

kernel: Remove some more old major number related stuff.

kernel: Use NULL for pointers.

kernel: Use NELEM() in some more places.

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.

TRIM support

Signed-off-by: Samuel J. Greear <sjg@thesjg.com>

cam(4): Add a quirk to turn off SYNC CACHE for mly(4).

This fixes mounting a HAMMER file system from an mly(4) disk on
the AcceleRAID 160 I tried this with.

I think it will also fix the following i

cam(4): Add a quirk to turn off SYNC CACHE for mly(4).

This fixes mounting a HAMMER file system from an mly(4) disk on
the AcceleRAID 160 I tried this with.

I think it will also fix the following issue that was reported
for the AcceleRAID 170 on FreeBSD:

http://lists.freebsd.org/pipermail/freebsd-hardware/2008-December/005676.html

The problem with fixing this was that the mly(4) driver modifies
the SCSI inquiry data and uses it for its own purposes (to show
the disk type and status). So I had to make these fields a bit
more recognizable to the quirks code because the previous strings
were too generic for my taste.

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taskq - Make consumer tasks MPALMOSTSAFE

* All consumers of taskqueue_thread[cpu] have to be at least
MPALMOSTSAFE as they won't be called with the mplock held.

USB - Avoid unnecessary reprobes.

* Do not unconditionally setdiskinfo when a removable DA* device is
opened. It takes time for the kernel to reprobe the drive and this
seriously messes up moun

USB - Avoid unnecessary reprobes.

* Do not unconditionally setdiskinfo when a removable DA* device is
opened. It takes time for the kernel to reprobe the drive and this
seriously messes up mountroot during kernel boot or attempts to
access partitions in slices (instant open + access partition).

If the size hasn't changed, do not call setdiskinfo again.

* This is a bad hack. A better solution (detect actual device
replacement) is needed.

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CAM - Check DA media on open, basic suppor for removable DA media (vs CD).

* Install setdiskinfo on probe for DA if no media is present, similar to how
the CD works. This allows open() to functio

CAM - Check DA media on open, basic suppor for removable DA media (vs CD).

* Install setdiskinfo on probe for DA if no media is present, similar to how
the CD works. This allows open() to function.

* Recheck media presence on open().

Reported-by: "Simon 'corecode' Schubert" <corecode@fs.ei.tum.de>

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DEVFS - Add serial number links for all CAM and NATA attachments.

All CAM-probed drives and NATA probed drives which have a serial number
will now show up in DEVFS under /dev/serno, in addition to s

DEVFS - Add serial number links for all CAM and NATA attachments.

All CAM-probed drives and NATA probed drives which have a serial number
will now show up in DEVFS under /dev/serno, in addition to showing up
as da/cd/ad*. This will ultimately tie into /etc/devtab.

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DEVFS - Bring in Alex's GSOC kernel adjustments.

This is a rollup commit bringing in Alex Hornung's GSOC adjustments
to the main kernel codebase for DEVFS.

Submitted-by: Alex Hornung <ahornung@gmai

DEVFS - Bring in Alex's GSOC kernel adjustments.

This is a rollup commit bringing in Alex Hornung's GSOC adjustments
to the main kernel codebase for DEVFS.

Submitted-by: Alex Hornung <ahornung@gmail.com>

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CAM - disable cache synchronization by default for USB attachments.

Instead of trying to blacklist particular usb mass storage devices which
do not support the cache synchronization command, just de

CAM - disable cache synchronization by default for USB attachments.

Instead of trying to blacklist particular usb mass storage devices which
do not support the cache synchronization command, just default to not
supporting it for ALL usb mass storage attachments. Too many usb devices
brick when sent the command.

It matters more now that people are using HAMMER, and HAMMER utilizes the
cache synchronization command to delineate flushes. We will now by
definition not be able to guarantee recovery if HAMMER is used on a USB
mass storage device. It will probably work anyway, though.

Reported-by: Many people

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CAM - Silence console spew on bus-rescan

Silence the console spew that occurs when rescanning a SCSI bus. This
is primarily so the AHCI driver can just have CAM re-test all the targets
when new tar

CAM - Silence console spew on bus-rescan

Silence the console spew that occurs when rescanning a SCSI bus. This
is primarily so the AHCI driver can just have CAM re-test all the targets
when new targets are added or deleted.

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CAM Enhancements for AHCI driver work, import some structures from OpenBSD.

Add a CAM bit in the ccb to indicate that a polled operation is being
requested. This is easier for the driver to find th

CAM Enhancements for AHCI driver work, import some structures from OpenBSD.

Add a CAM bit in the ccb to indicate that a polled operation is being
requested. This is easier for the driver to find then putting it in
the periph structure.

Rename the scsi_read_capacity_data_long structure to
scsi_read_capacity_data_16 to match OpenBSD, and add a
command code for READ_CAPACITY_16 to match OpenBSD and reduce
confusion. Also add missing fields to scsi_read_capacity_data_16.

Add SCSI_REV_SPC3. Taken from OpenBSD.

Add a page description structure for UNIT_DEVID (page 0x83), taken from
OpenBSD.

Add unions for SCSI CDB command structures and response fields to improve
code readability.

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Add BUF_CMD_FLUSH support - issue flush command to mass storage device.

Fix multiple bugs in CAM related devices which go away unexpectedly. This
fixes numerous panics when pulling a USB mass media device in the midst of
heavy I/O.

* The SIM lock was being unlocked via

Fix multiple bugs in CAM related devices which go away unexpectedly. This
fixes numerous panics when pulling a USB mass media device in the midst of
heavy I/O.

* The SIM lock was being unlocked via the periph->sim path after periph
was unheld. periph can become free and blow up the unlock, so get
the sim into a local variable first, then release periph.

* The code which waits for CCB completion needs to be a while loop, not
an if. It worked anyway, but wasn't very robust.

* Add CAM_SIM_DEREGISTERED to flag when a sim is undergoing deregistration.

* Beef up cam_dead_sim so it works more like a real sim.

* Properly install &cam_dead_sim in the device and periph structures
related to a SCSI bus, when deregistering the bus.

* Disallow the addition of new devices when deregistering a bus.

* NULL out periph->softc when freeing it.

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Add quirk for the Samsung YP-U3.

Obtained-from: FreeBSD

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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Nuke unneded include.

Submitted-by: Robert Gauthier <321.robert@gmail.com>

Add quirk for an USB Flash Disk Media Player.

Submitted-by: Steve O'Hara-Smith <steve@sohara.org>

o Correct quirks entry for a MP3 player
o Add new quirk for Netak OnlyDisk drive

Obtained-from: FreeBSD

Sync quirk tables with FreeBSD.

Obtained-from: FreeBSD

Add a tunable that allows one to turn off the automatic sending of
the ORDERED tag. This recoups significant performance gains for many
arrays.

The default is still to send out the ORDERED tag perio

Add a tunable that allows one to turn off the automatic sending of
the ORDERED tag. This recoups significant performance gains for many
arrays.

The default is still to send out the ORDERED tag periodically.

Obtained-from: FreeBSD

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Actually check to see if XPT_CALC_GEOMETRY had an error
and pick a bogus geometry if it had so we don't later
get a divide by zero trap.

Obtained-from: FreeBSD