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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head.

Add API to obtain primary enclosure name and ID for /dev/sesX devices.

sesX device number may change between reboots, so to properly identify
the instance we need more data. Name and ID reported he

Add API to obtain primary enclosure name and ID for /dev/sesX devices.

sesX device number may change between reboots, so to properly identify
the instance we need more data. Name and ID reported here may mach ones
reported by SCSI device, but that is not really required by specs.

MFC after: 1 week
Sponsored by: iXsystems, Inc.

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IFC @ r238370

Merge head r233826 through r236168.

MFprojects/zfsd:
Revamp the CAM enclosure services driver.
This updated driver uses an in-kernel daemon to track state changes and
publishes physical path location information\for disk elements into

MFprojects/zfsd:
Revamp the CAM enclosure services driver.
This updated driver uses an in-kernel daemon to track state changes and
publishes physical path location information\for disk elements into the
CAM device database.

Sponsored by: Spectra Logic Corporation
Sponsored by: iXsystems, Inc.
Submitted by: gibbs, will, mav

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Unify getencstat output.
Tune type and status names to match SES specification.

Revamp the CAM enclosure services driver, renaming it to "enc" from "ses" in
the process. This updated driver uses an in-kernel daemon to track state
changes and publishes physical path location inf

Revamp the CAM enclosure services driver, renaming it to "enc" from "ses" in
the process. This updated driver uses an in-kernel daemon to track state
changes and publishes physical path location information for disk elements
into the CAM device database.

share/examples/ses/Makefile.inc:
share/examples/ses/srcs/eltsub.c:
share/examples/ses/srcs/sesd.c:
share/examples/ses/srcs/getencstat.c:
share/examples/ses/srcs/setobjstat.c:
share/examples/ses/srcs/inienc.c:
share/examples/ses/srcs/getobjstat.c:
share/examples/ses/srcs/getnobj.c:
share/examples/ses/srcs/getobjmap.c:
share/examples/ses/srcs/setencstat.c:
Update for changes in driver name and API. The ioctl interface
is largely unchanged and could use additional refinement. It
would be nice to be able to fetch the status of all elements in
a single ioctl call and to have the ioctls that return variable
length data allow you to query the necessary allocation size
by passing in a zero length buffer.

sys/sparc64/conf/GENERIC:
sys/ia64/conf/GENERIC:
sys/mips/conf/OCTEON1:
sys/pc98/conf/GENERIC:
sys/i386/conf/GENERIC:
sys/amd64/conf/GENERIC:
ses -> enc

sys/conf/files:
sys/modules/cam/Makefile:
sys/cam/scsi/scsi_enc_internal.h
sys/cam/scsi/scsi_enc_ses.c
sys/cam/scsi/scsi_enc_safte.c
sys/cam/scsi/scsi_ses.c
sys/cam/scsi/scsi_enc.c
Split the enc driver into a generic driver file and one file
each for the SES and SAF-TE personalities.

sys/cam/scsi/scsi_ses.h:
o Retain this header, but use it to only hold structures derived
from the T10 SES spec. The driver interface can be found in
scsi_enc.h.
o Add definitions for most SES pages.

sys/cam/scsi/scsi_enc.c
sys/cam/scsi/scsi_enc.h
o Use a function vector table to allow interaction between the
generic and protocol specific portions of this driver.
o Provide a generic mechanism allowing personalities to define a
finite state machine that is executed from a daemon thread context.
o Track CAM device arrival events and pass these on to personalities
that have registered an interest in them. These notifications are
used to trigger physical path updates in the CAM EDT.

sys/cam/scsi/scsi_enc_safte.c:
The SAF-TE personality. This module is largely untouched by this
update. To achieve the same level of support as we have for SES,
it will need to define an FSM and code to determine the physical
paths of elements within the enclosure.

sys/cam/scsi/scsi_enc_ses.c:
o Implement a state machine to fetch configuration, status, element
descriptors, and additional element status.
o Build a "element map" that indexes into the config and status
data retrieved from a SES device. Use this to simplify our
responses to ioctls.
o Add support for using SAS domain/phy WWN data to determine the
physical path (ence@<enc WWN>/type@<elm type>/slot@<slot #>)
of an element. Stubs are in place for FC, but both FC and SPI
will need additional work in order to be supported.

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

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IFH@204581

MFC @199204

Cleanup code to make it WARNS=6 clean:

- ANSIfy prototypes;
- Add __unused for parameters that is not being currently used;
- Add a header for subrountines being called from other modules.

Revie

Cleanup code to make it WARNS=6 clean:

- ANSIfy prototypes;
- Add __unused for parameters that is not being currently used;
- Add a header for subrountines being called from other modules.

Reviewed by: mjacob

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Include string.h for prototype of strcmp().

Update SES userland examples to something out of the toy stage.
Approved: jkh

MFC @199204

Cleanup code to make it WARNS=6 clean:

- ANSIfy prototypes;
- Add __unused for parameters that is not being currently used;
- Add a header for subrountines being called from other modules.

Revie

Cleanup code to make it WARNS=6 clean:

- ANSIfy prototypes;
- Add __unused for parameters that is not being currently used;
- Add a header for subrountines being called from other modules.

Reviewed by: mjacob

show more ...

Include string.h for prototype of strcmp().

Update SES userland examples to something out of the toy stage.
Approved: jkh