IFC @ r244983.

Make SES driver to not fall out on some errors in Additional Status page.
This allows CAM devices still get their physical paths even if status of
later elements it corrupted.

Sponsored by: iXsystem

Make SES driver to not fall out on some errors in Additional Status page.
This allows CAM devices still get their physical paths even if status of
later elements it corrupted.

Sponsored by: iXsystems, Inc.

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Fix bug in r242720, that caused additional status page to not be used if
descriptor page is supported.

MFC

MFC @ r241285

IFC @ r242940

IFC @ r242684

Use information about suported diagnostic pages to avoid reading optional
Element Descriptor page if it is not supported. This removes one error
message from verbose logs during boot on systems with

Use information about suported diagnostic pages to avoid reading optional
Element Descriptor page if it is not supported. This removes one error
message from verbose logs during boot on systems with some enclosures.

Sponsored by: iXsystems, Inc.

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Sync from head

remove duplicate semicolons where possible.

Approved by: cperciva
MFC after: 1 week

XPT_DEV_MATCH is probably the only xpt_action() method that is called
without holding SIM lock. It really doesn't need that lock, but adding it
removes that specific exception, allowing to assert loc

XPT_DEV_MATCH is probably the only xpt_action() method that is called
without holding SIM lock. It really doesn't need that lock, but adding it
removes that specific exception, allowing to assert locking there later.

Submitted by: ken@ (earlier version)

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Get SIM lock in several places while calling CAM functions.
This fixes several use-after-free panics on systems with SAS enclosures.

Submitted by: ken@, mav@

Merge head r233826 through r240095.

1. Remove SEN support. I doubt there are any working examples
of this hardware still running (close to twenty years now).

2. Quiesece and use ENC_VLOG instead of ENC_LOG for most
complaints. That is

1. Remove SEN support. I doubt there are any working examples
of this hardware still running (close to twenty years now).

2. Quiesece and use ENC_VLOG instead of ENC_LOG for most
complaints. That is, they're visible with bootverbose, but
otherwise quiesced and not repeatedly spamming messages
with constant reminders that hardware in this space is
rarely fully compliant.

MFC after: 1 month

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Merge head r233826 through r239010.

Remove opt_enc.h from files committed with r235911. enc(4) is the
'encapsulating interface' used with IPsec and has nothing to do with
storage 'enclosure' services.

MFC after: 3 days
Noticed while:

Remove opt_enc.h from files committed with r235911. enc(4) is the
'encapsulating interface' used with IPsec and has nothing to do with
storage 'enclosure' services.

MFC after: 3 days
Noticed while: debugging why enc(4) is no longer automatically created

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Do not call ses_softc_cleanup() in case of configuration read failure.
Just free inclomplete daemon cache instead to let it retry next time.
Premature ses_softc_cleanup() caused NULL dereference when

Do not call ses_softc_cleanup() in case of configuration read failure.
Just free inclomplete daemon cache instead to let it retry next time.
Premature ses_softc_cleanup() caused NULL dereference when freed softc
was accessed later.

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IFC @ r238370

IFC @ r236291.
Diff reductions to the enclosure driver made in r235911.

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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Add workaround for broken Supermicro backplanes, reporting wrong value in
ELEMENT INDEX field. If index of element for which additional status is
not supported is detected, ignore this and further in

Add workaround for broken Supermicro backplanes, reporting wrong value in
ELEMENT INDEX field. If index of element for which additional status is
not supported is detected, ignore this and further indexes, trying to
assign elements sequentially.

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IFC @230489 (pending review).

- Do not report error if index found in next Additional Status descriptor
is less then expected. Theoretically it may happen if Additional Status will
be used for some new type in later spec.
- Reph

- Do not report error if index found in next Additional Status descriptor
is less then expected. Theoretically it may happen if Additional Status will
be used for some new type in later spec.
- Rephrase some error messages to make them a bit more informative.

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Tune destruction sequence, including aborting queued control requests.
Cover for some edge cases is still ongoing.