Remove no longer supported mthca driver.

Sponsored by: Mellanox Technologies

MFH @ r323558.

MFhead@r323343

Add NTB driver for PLX/Avago/Broadcom PCIe switches.

This driver supports both NTB-to-NTB and NTB-to-Root Port modes (though
the second with predictable complications on hot-plug and reboot events).

Add NTB driver for PLX/Avago/Broadcom PCIe switches.

This driver supports both NTB-to-NTB and NTB-to-Root Port modes (though
the second with predictable complications on hot-plug and reboot events).
I tested it with PEX 8717 and PEX 8733 chips, but expect it should work
with many other compatible ones too. It supports up to two NT bridges
per chip, each of which can have up to 2 64-bit or 4 32-bit memory windows,
6 or 12 scratchpad registers and 16 doorbells. There are also 4 DMA engines
in those chips, but they are not yet supported.

While there, rename Intel NTB driver from generic ntb_hw(4) to more specific
ntb_hw_intel(4), so now it is on par with this new ntb_hw_plx(4) driver and
alike to Linux naming.

MFC after: 2 weeks
Sponsored by: iXsystems, Inc.

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MFhead@r320180

Merge ^/head r319973 through 321382.

Merge ^/head r320573 through r320970.

Garbage collect kernel option TWA_FLASH_FIRMWARE

Submitted by: kevin.bowling0kev009.com
Differential Revision: https://reviews.freebsd.org/D11387

Remove i915drm and radeondrm from NOTES and conf.
This unbreak LINT kernel.

Reported by: lwhsu

Merge ^/head r314270 through r314419.

Remove SVR4 (System V Release 4) binary compatibility support.

UNIX System V Release 4 is operating system released in 1988. It ceased
to exist in early 2000-s.

Merge ^/head r313644 through r313895.

Remove EISA bus support for add-in cards. Remove related kernel and
compile options. Remove doxygen pointers to now deleted files. Remove
EISA and VME as examples in bus_space.9.

Retained EISA mode

Remove EISA bus support for add-in cards. Remove related kernel and
compile options. Remove doxygen pointers to now deleted files. Remove
EISA and VME as examples in bus_space.9.

Retained EISA mode code for IO PIC and MPTABLES because that's not
EISA bus, per se, and some people have abused EISA to mean "EISA-like
behavior as opposed to ISA" rather than using it for EISA add-in
cards.

Relnotes: yes

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Remove Micro Channel Architecture support. Of the commonly available
machines, only a few 486 machines that used it, and those haven't had
enough memory to run FreeBSD for quite some time (often limi

Remove Micro Channel Architecture support. Of the commonly available
machines, only a few 486 machines that used it, and those haven't had
enough memory to run FreeBSD for quite some time (often limited to
16MB).

Not to be confused with the Machine Check Architecture, which is still
very much alive and used (and untouched by this commit).

No Objection From: arch@

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Merge ^/head r313055 through r313300.

MFhead@r313243

For i386, remove config options CPU_DISABLE_CMPXCHG, CPU_DISABLE_SSE
and device npx.

This means that FPU is always initialized and handled when available,
and SSE+ register file and exception are ha

For i386, remove config options CPU_DISABLE_CMPXCHG, CPU_DISABLE_SSE
and device npx.

This means that FPU is always initialized and handled when available,
and SSE+ register file and exception are handled when available. This
makes the kernel FPU code much easier to maintain by the cost of
slight bloat for CPUs older than 25 years.

CPU_DISABLE_CMPXCHG outlived its usefulness, see the removed comment
explaining the original purpose.

Suggested by and discussed with: bde
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks

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Merge ^/head r306412 through r306905.

Move the ConnectX-3 and ConnectX-2 driver from sys/ofed into sys/dev/mlx4
like other PCI network drivers. The sys/ofed directory is now mainly
reserved for generic infiniband code, with exception of

Move the ConnectX-3 and ConnectX-2 driver from sys/ofed into sys/dev/mlx4
like other PCI network drivers. The sys/ofed directory is now mainly
reserved for generic infiniband code, with exception of the mthca driver.

- Add new manual page, mlx4en(4), describing how to configure and load
mlx4en.

- All relevant driver C-files are now prefixed mlx4, mlx4_en and
mlx4_ib respectivly to avoid object filename collisions when compiling
the kernel. This also fixes an issue with proper dependency file
generation for the C-files in question.

- Device mlxen is now device mlx4en and depends on device mlx4, see
mlx4en(4). Only the network device name remains unchanged.

- The mlx4 and mlx4en modules are now built by default on i386 and
amd64 targets. Only building the mlx4ib module depends on
WITH_OFED=YES .

Sponsored by: Mellanox Technologies

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MFhead @ r304815

Merge ^/head r304537 through r304699.

Make CloudABI work on i386.

Copy over amd64's cloudabi64_sysvec.c into i386 and tailor it to work.
Again, we use a system call convention similar to FreeBSD, except that
there is no support for indi

Make CloudABI work on i386.

Copy over amd64's cloudabi64_sysvec.c into i386 and tailor it to work.
Again, we use a system call convention similar to FreeBSD, except that
there is no support for indirect system calls (%eax == 0).

Where i386 differs from amd64 is that we have to store thread/process
entry arguments on the stack instead of using registers. We also have to
put an extra pointer on the stack for TLS (for GSBASE). Place that
pointer in the empty slot that is normally used to hold return
addresses. That seems to keep the code simple.

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D7590

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Merge ^/head r304236 through r304536.

Remove the ie(4) driver for Intel 82586 ISA Ethernet adapters.

This driver only supports 10Mb Ethernet using PIO (the hardware supports
DMA, but the driver only does PIO). There are not any PCCard

Remove the ie(4) driver for Intel 82586 ISA Ethernet adapters.

This driver only supports 10Mb Ethernet using PIO (the hardware supports
DMA, but the driver only does PIO). There are not any PCCard adapters
supported by this driver, only ISA cards. In addition, it does not use
bus_space but instead uses bcopy with volatile pointers triggering a
host of warnings. (if_ie.c is one of 3 files always built with
-Wno-error)

Relnotes: yes

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Remove the spic(4) driver for the Sony Vaoi Jogdial.

This hardware is not present on any modern systems. The driver is quite
hackish (raw inb/outb instead of bus_space, and raw inb/outb to random
I

Remove the spic(4) driver for the Sony Vaoi Jogdial.

This hardware is not present on any modern systems. The driver is quite
hackish (raw inb/outb instead of bus_space, and raw inb/outb to random
I/O ports to enable ACPI since it predated proper ACPI support).

Relnotes: yes

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