dd DTrace probe points, translators and a corresponding script
to provide the TCPDEBUG functionality with pure DTrace.

Reviewed by: rwatson
MFC after: 2 weeks
Sponsored by: Limelight Networks
Differ

dd DTrace probe points, translators and a corresponding script
to provide the TCPDEBUG functionality with pure DTrace.

Reviewed by: rwatson
MFC after: 2 weeks
Sponsored by: Limelight Networks
Differential Revision: D3530

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Finish merging from head, messed up in previous attempt

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285924 through r286421.

- Use an explicit "depends_on module kernel" guard in DTrace libraries that
reference types defined in the kernel. Otherwise dtrace(1) expects to find
CTF definitions for all referenced types, wh

- Use an explicit "depends_on module kernel" guard in DTrace libraries that
reference types defined in the kernel. Otherwise dtrace(1) expects to find
CTF definitions for all referenced types, which is not very reasonable
when it is being used in a build environment. This was previously worked
around by adding "-x nolibs" to dtrace -h or -G invocations, but as of
r283025, dtrace(1) actually handles dependencies properly, so this is no
longer necessary.
- Remove "pragma ident" directives from DTrace libraries, as they're being
phased out upstream as well.

Submitted by: Krister Johansen <Krister.Johansen@isilon.com> [1]
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

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MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Actually remove siftr-related definitions from tcp.d, missed in r283026.

Merge from head

MFH: r281855-r282312

Sponsored by: The FreeBSD Foundation

Brief demo script showing the various values that can be read via
the new SIFTR statically defined tracepoint (SDT).

Differential Revision: https://reviews.freebsd.org/D2387
Reviewed by: bz, markj

Reintegrate head revisions r273096-r277147

Sponsored by: The FreeBSD Foundation

Merge from head@274682

Sync to HEAD@r274095.

Correct the calculation of tcps_rto in the struct tcpcb -> tcpsinfo_t
translator.

Submitted by: Grenville Armitage <garmitage@swin.edu.au>
MFC after: 1 week

IFC @r273338

Update the TCP structure used by DTrace to show the smoothed RTT.
This will allow similar functionality to SIFTR to be built with DTrace.

Submitted by: Grenville Armitage
MFC after: 2 weeks

Merge head from 7/28

MFC @ r266724

An SVM update will follow this.

IFC @266473

Bind ip/tcp/udp provider translators and symbols to the same versions as in
illumos, rather than using "1.0" everywhere.

Some of the translators use D functions that are not present in version
1.0 (

Bind ip/tcp/udp provider translators and symbols to the same versions as in
illumos, rather than using "1.0" everywhere.

Some of the translators use D functions that are not present in version
1.0 (e.g. inet_ntoa()) which can result in libdtrace crashing when running
scripts that restrict themselves to version 1.0
(e.g. with "-x version=1.0").

MFC after: 1 week

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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 update.