Use a less unusual syntax in debug printfs.

Sponsored by: The FreeBSD Foundation

Merge head up to r262222 (last merge was incomplete).

MFC @ r259205 in preparation for some SVM updates. (for real this time)

Properly refuse handoff requests on already connected sessions. Previously
this would result in dropping the session.

MFC after: 2 days
Sponsored by: The FreeBSD Foundation

Fix hang on reboot with active iSCSI connections.

MFC after: 3 days
Sponsored by: The FreeBSD Foundation

MFC @ r256071

This is just prior to the bhyve_npt_pmap import so will allow
just the change to be merged for easier debug.

Merge head r233826 through r256722.

Merge head@256284

IFC @256277

Approved by: ken (mentor)

MFC - tracking commit.

Properly handle residual count in Data-In PDUs with S bit set.

Approved by: re (gjb)
Sponsored by: FreeBSD Foundation

Be extra paranoid with values obtained from the target.

Approved by: re (glebius)
Sponsored by: FreeBSD Foundation

MFC - tracking commit

Fix NOP-In/NOP-Out payload handling. Previous way didn't work at all; fortunately
nothing seems to actually use this feature, but it's required by standard.

Approved by: re (glebius)
Sponsored by:

Fix NOP-In/NOP-Out payload handling. Previous way didn't work at all; fortunately
nothing seems to actually use this feature, but it's required by standard.

Approved by: re (glebius)
Sponsored by: FreeBSD Foundation

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MFC- tracking commit.

Don't leak memory when removing an unconnected session, and remove useless
UMA_ZONE_NOFREE that caused another leak when unloading the module.

Approved by: re (glebius)
Sponsored by: FreeBSD Foundat

Don't leak memory when removing an unconnected session, and remove useless
UMA_ZONE_NOFREE that caused another leak when unloading the module.

Approved by: re (glebius)
Sponsored by: FreeBSD Foundation

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MFC - tracking update.

As it turns out, when MOD_LOAD handler returns error, kernel calls MOD_UNLOAD
handler. Make the new iSCSI initiator not panic when this happens.

Approved by: re (glebius)
Sponsored by: FreeBSD Foun

As it turns out, when MOD_LOAD handler returns error, kernel calls MOD_UNLOAD
handler. Make the new iSCSI initiator not panic when this happens.

Approved by: re (glebius)
Sponsored by: FreeBSD Foundation

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Don't use M_WAITOK when running from context where sleeping is prohibited,
such as callout or a geom thread.

Approved by: re (marius)
Sponsored by: FreeBSD Foundation

IFC @ r255692

Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.

Fix several problems in the new iSCSI stack; this includes interoperability
fix for LIO (Linux target), removing possibility for the target to avoid mutual
CHAP by choosing to skip authentication alt

Fix several problems in the new iSCSI stack; this includes interoperability
fix for LIO (Linux target), removing possibility for the target to avoid mutual
CHAP by choosing to skip authentication altogether, and fixing truncated error
messages in iscsictl(8) output. This also fixes several of the problems found
with Coverity.

Note that this change requires world rebuild.

Coverity CID: 1088038, 1087998, 1087990, 1088004, 1088044, 1088041, 1088040
Approved by: re (blanket)
Sponsored by: FreeBSD Foundation

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Bring in the new iSCSI target and initiator.

Reviewed by: ken (parts)
Approved by: re (delphij)
Sponsored by: FreeBSD Foundation