IFC @ r227804

Pull in the virtio drivers from head.

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else,

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.

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IFC @ r226824

Allow upper layers to discover than BIO_DELETE and/or BIO_FLUSH is not
supported by returning EOPNOTSUPP instead of 0 or ENODEV.

MFC after: 3 days

Improve style a bit.

MFC after: 3 days

Simplify disk_alloc().

MFC after: 3 days

IFC @ r224187

Integrate from Head into ZFSD feature branch as of revision r224141.

Include sys/sbuf.h directly.

Reviewed by: pjd

IFC @ r222830

MFC

Plumb device physical path reporting from CAM devices, through GEOM and
DEVFS, and make it accessible via the diskinfo utility.

Extend GEOM's generic attribute query mechanism into generic disk cons

Plumb device physical path reporting from CAM devices, through GEOM and
DEVFS, and make it accessible via the diskinfo utility.

Extend GEOM's generic attribute query mechanism into generic disk consumers.
sys/geom/geom_disk.c:
sys/geom/geom_disk.h:
sys/cam/scsi/scsi_da.c:
sys/cam/ata/ata_da.c:
- Allow disk providers to implement a new method which can override
the default BIO_GETATTR response, d_getattr(struct bio *). This
function returns -1 if not handled, otherwise it returns 0 or an
errno to be passed to g_io_deliver().

sys/cam/scsi/scsi_da.c:
sys/cam/ata/ata_da.c:
- Don't copy the serial number to dp->d_ident anymore, as the CAM XPT
is now responsible for returning this information via
d_getattr()->(a)dagetattr()->xpt_getatr().

sys/geom/geom_dev.c:
- Implement a new ioctl, DIOCGPHYSPATH, which returns the GEOM
attribute "GEOM::physpath", if possible. If the attribute request
returns a zero-length string, ENOENT is returned.

usr.sbin/diskinfo/diskinfo.c:
- If the DIOCGPHYSPATH ioctl is successful, report physical path
data when diskinfo is executed with the '-v' option.

Submitted by: will
Reviewed by: gibbs
Sponsored by: Spectra Logic Corporation

Add generic attribute change notification support to GEOM.

sys/sys/geom/geom.h:
Add a new attrchanged method field to both g_class
and g_geom.

sys/sys/geom/geom.h:
sys/geom/geom_event.c:
- Provide the g_attr_changed() function that providers
can use to advertise attribute changes.
- Perform delivery of attribute change notifications
from a thread context via the standard GEOM event
mechanism.

sys/geom/geom_subr.c:
Inherit the attrchanged method from class to geom (class instance).

sys/geom/geom_disk.c:
Provide disk_attr_changed() to provide g_attr_changed() access
to consumers of the disk API.

sys/cam/scsi/scsi_pass.c:
sys/cam/scsi/scsi_da.c:
sys/geom/geom_dev.c:
sys/geom/geom_disk.c:
Use attribute changed events to track updates to physical path
information.

sys/cam/scsi/scsi_da.c:
Add AC_ADVINFO_CHANGED to the registered asynchronous CAM
events for this driver. When this event occurs, and
the updated buffer type references our physical path
attribute, emit a GEOM attribute changed event via the
disk_attr_changed() API.

sys/cam/scsi/scsi_pass.c:
Add AC_ADVINFO_CHANGED to the registered asynchronous CAM
events for this driver. When this event occurs, update
the physical patch devfs alias for this pass instance.

Submitted by: gibbs
Sponsored by: Spectra Logic Corporation

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MFC

Update disk's stripesize and stripeoffset parameters on provider open.
They are media-dependent and may change in run-time, same as sectorsize
and/or mediasize.

SCSI devices return physical sector s

Update disk's stripesize and stripeoffset parameters on provider open.
They are media-dependent and may change in run-time, same as sectorsize
and/or mediasize.

SCSI devices return physical sector size and offset via READ CAPACITY(16)
command and so can not report it until media inserted or at least until
probe sequence completed. UNMAP support is also reported there.

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MFgraid/head r218212, r218257:
Introduce new type of BIO_GETATTR -- GEOM::setstate, used to inform lower
GEOM about state of it's providers from the point of upper layers.
Make geom_disk use led(4) s

MFgraid/head r218212, r218257:
Introduce new type of BIO_GETATTR -- GEOM::setstate, used to inform lower
GEOM about state of it's providers from the point of upper layers.
Make geom_disk use led(4) subsystem to illuminate states in such fashion:
FAILED - "1" (on), REBUILD - "f5" (slow blink), RESYNC - "f1" (fast blink),
ACTIVE - "0" (off).
LED name should be set for each disk via kern.geom.disk.%s.led sysctl.
Later disk API could be extended to allow disk driver to report this info
in custom way via it's own facilities.

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MFgraid/head r217827:
Change BIO_GETATTR("GEOM::kerneldump") API to make set_dumper() called by
consumer (geom_dev) instead of provider (geom_disk). This allows any geom
insert it's code into the dum

MFgraid/head r217827:
Change BIO_GETATTR("GEOM::kerneldump") API to make set_dumper() called by
consumer (geom_dev) instead of provider (geom_disk). This allows any geom
insert it's code into the dump call chain, implementing more sophisticated
functionality then just disk partitioning.

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Merge svn+ssh://svn.freebsd.org/base/head@219553

Add the disk ident and a human-meaningful description (here, the disk model
string) to the geom_disk config XML so that they are easily accessible from
userland.

MFC after: 1 week

Merge svn+ssh://svn.freebsd.org/base/head@218816

Remove the CTLFLAG_NOLOCK as it seems to be both unused and
unfunctional. Wiring the user buffer has only been done explicitly
since r101422.

Mark the kern.disks sysctl as MPSAFE since it is and it

Remove the CTLFLAG_NOLOCK as it seems to be both unused and
unfunctional. Wiring the user buffer has only been done explicitly
since r101422.

Mark the kern.disks sysctl as MPSAFE since it is and it seems to have
been mis-using the NOLOCK flag.

Partially break the KPI (but not the KBI) for the sysctl_req 'lock'
field since this member should be private and the "REQ_LOCKED" state
seems meaningless now.

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Add reporting of GEOM::candelete BIO_GETATTR for md(4) and geom_disk(4).
Non-zero value of attribute means that device supports BIO_DELETE.

Suggested and reviewed by: pjd
Tested by: pho
MFC after: 1

Add reporting of GEOM::candelete BIO_GETATTR for md(4) and geom_disk(4).
Non-zero value of attribute means that device supports BIO_DELETE.

Suggested and reviewed by: pjd
Tested by: pho
MFC after: 1 week

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Merge svn+ssh://svn.freebsd.org/base/head@211344

Export PCI IDs of ATA/SATA controllers through CAM and ata(4) layers to
GEOM. This information needed for proper soft-RAID's on-disk metadata
reading and writing.

Merge from head

MFC r196822, r196823, r196824:

Remove 'ad:' prefix from disk serial number. We don't want serial number
to change when we reconnect the disk in a way that it is accessible through
CAM for example.

MFC r196822, r196823, r196824:

Remove 'ad:' prefix from disk serial number. We don't want serial number
to change when we reconnect the disk in a way that it is accessible through
CAM for example.

Discussed with: trasz

Simplify g_disk_ident_adjust() function and allow any printable character
in serial number.

Discussed with: trasz
Obtained from: Wheel Sp. z o.o. (http://www.wheel.pl)

Make serial numbers of daX disks visible by GEOM.

No objections from: scottl
Obtained from: Wheel Sp. z o.o. (http://www.wheel.pl)

Approved by: re (kib)

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