Import ioat(4) driver

I/OAT is also referred to as Crystal Beach DMA and is a Platform Storage
Extension (PSE) on some Intel server platforms.

This driver currently supports DMA descriptors only an

Import ioat(4) driver

I/OAT is also referred to as Crystal Beach DMA and is a Platform Storage
Extension (PSE) on some Intel server platforms.

This driver currently supports DMA descriptors only and is part of a
larger effort to upstream an interconnect between multiple systems using
the Non-Transparent Bridge (NTB) PSE.

For now, this driver is only built on AMD64 platforms. It may be ported
to work on i386 later, if that is desired. The hardware is exclusive to
x86.

Further documentation on ioat(4), including API documentation and usage,
can be found in the new manual page.

Bring in a test tool, ioatcontrol(8), in tools/tools/ioat. The test
tool is not hooked up to the build and is not intended for end users.

Submitted by: jimharris, Carl Delsey <carl.r.delsey@intel.com>
Reviewed by: jimharris (reviewed my changes)
Approved by: markj (mentor)
Relnotes: yes
Sponsored by: Intel
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D3456

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Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285341 through r285792.

Describe COMPAT_CLOUDABI64 in the amd64 configuration NOTES file.

Implement the lockstat provider using SDT(9) instead of the custom provider
in lockstat.ko. This means that lockstat probes now have typed arguments and
will utilize SDT probe hot-patching support wh

Implement the lockstat provider using SDT(9) instead of the custom provider
in lockstat.ko. This means that lockstat probes now have typed arguments and
will utilize SDT probe hot-patching support when it arrives.

Reviewed by: gnn
Differential Revision: https://reviews.freebsd.org/D2993

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Merge driver for PMC Sierra's range of SAS/SATA HBAs.

Submitted by: Achim Leubner <Achim.Leubner@pmcs.com>
Reviewed by: scottl

Driver 'pmspcv' added. Supports PMC-Sierra PM8001/8081/8088/8089/8074/8076/8077 SAS/SATA HBA Controllers.

Catch up with HEAD (r280229-r284686).

Merge ^/head r284188 through r284643.

Merge from head

Allow DTrace to be compiled-in to the kernel.
This will require for AArch64 as we dont have modules yet.

Sponsored by: HEIF5
Sponsored by: ARM Ltd.
Differential Revision: https://reviews.freebsd.org

Allow DTrace to be compiled-in to the kernel.
This will require for AArch64 as we dont have modules yet.

Sponsored by: HEIF5
Sponsored by: ARM Ltd.
Differential Revision: https://reviews.freebsd.org/D1997

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Merge sync of head

Merge from head

MFH: r281855-r282312

Sponsored by: The FreeBSD Foundation

Microsoft vmbus, storage and other related driver enhancements for HyperV.
- Vmbus multi channel support.
- Vector interrupt support.
- Signal optimization.
- Storvsc driver performan

Microsoft vmbus, storage and other related driver enhancements for HyperV.
- Vmbus multi channel support.
- Vector interrupt support.
- Signal optimization.
- Storvsc driver performance improvement.
- Scatter and gather support for storvsc driver.
- Minor bug fix for KVP driver.
Thanks royger, jhb and delphij from FreeBSD community for the reviews
and comments. Also thanks Hovy Xu from NetApp for the contributions to
the storvsc driver.

PR: 195238
Submitted by: whu
Reviewed by: royger, jhb, delphij
Approved by: royger
MFC after: 2 weeks
Relnotes: yes
Sponsored by: Microsoft OSTC

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MFhead @ r277403

Reintegrate head: r274132-r277384

Sponsored by: The FreeBSD Foundation

Plug cxgbe(4) back into !powerpc && !arm builds, instead of building it
on amd64 only.

Reintegrate head revisions r273096-r277147

Sponsored by: The FreeBSD Foundation

MFhead @ r276594

Temporarily unplug cxgbe(4) from !amd64 builds.

Merge ^/head r274961 through r276301.

Use compiled in default keymaps which are available both in syscons and vt.

Merge from head@274682

Sync to HEAD@r274095.