Several files use the internal name of `struct device` instead of
`device_t` which is part of the public API. This patch changes all
`struct device *` to `device_t`.

The remaining occurrences of `struct device` are those referring to the
Linux or OpenBSD version of the structure, or the code is not built on
FreeBSD and it's unclear what to do.

Submitted by:	Matthew Macy <mmacy@nextbsd.org> (previous version)
Approved by:	emaste, jhibbits, sbruno
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D7447

Uses of commas instead of a semicolons can easily go undetected. The comma
can serve as a statement separator but this shouldn't be abused when
statements are meant to be standalone.

Detected with devel/coccinelle following a hint from DragonFlyBSD.

MFC after:	1 month

This tool parses the ACPI DMAR table looking for DMA remapping devices.
For each device it walks the root table and any context tables
referenced to display mapping info for PCI devices.

Note that acpidump -t already parses the info in the ACPI DMAR tables
directly.  This tool examines some of the data structures the DMAR
remapping engines use to translate DMA requests.

Reviewed by:	kib, grehan
MFC after:	1 month
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7444

- Add constants for the fields in the root-entry table address register,
  namely the root type type (RTT) and root table address (RTA) mask.
- Add macros for the bitmask of the domain ID field in the second word
  of context table entries as well as a helper macro (DMAR_CTX2_GET_DID)
  to extract the domain ID from a context table entry.

Reviewed by:	kib
MFC after:	1 month
Sponsored by:	Chelsio Communications

Previously the loop in PCIIOCGETCONF would terminate as soon as it
found enough matches.  Now it will continue iterating through the
PCI device list and only terminate if it finds another matching device
for which it has no room to store a conf structure.  This means that
PCI_GETCONF_LAST_DEVICE is reliably returned when the number of
matching devices is equal to the number of slots in the matches
buffer.  For example, if a program requests the conf structure for a
single PCI function with a specified domain/bus/slot/function it will
now get PCI_GETCONF_LAST_DEVICE instead of PCI_GETCONF_MORE_DEVS.

While here, simplify the loop conditional a bit more by explicitly
breaking out of the loop if copyout() fails and removing a redundant
i < pci_numdevs check.

Reviewed by:	vangyzen, imp
MFC after:	1 month
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7445

Use this to map an absolute queue ID to a logical queue ID in interrupt
handlers.  For the regular cxgbe/cxl drivers this should be a no-op as
the base absolute ID should be zero.  VF devices have a non-zero base
absolute ID and require this change.  While here, export the absolute ID
of egress queues via a sysctl.

Reviewed by:	np
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7446

MFC after:	1 month

PR:		211471
Reported by:	survo@protonmail.com
Reviewed by:	robak@
Approved by:	allanjude@
MFC after:	3 days
Differential Revision:	 https://reviews.freebsd.org/D7440

MFC after:	1 month

MFC after:	1 month

MFC after:	1 month

MFC after:	1 month

MFC after:	1 month

Clear the device description to avoid use after free because the
bsddev is not destroyed when the mlx5en module is unloaded. Only when
the parent mlx5 module is unloaded the bsddev is destroyed. This fixes
a panic on listing sysctls which refer strings in the bsddev after the
mlx5en module has been unloaded.

Sponsored by:	Mellanox Technologies
MFC after:	1 week

The problem was that 'zfsvfs' variable was not initialized if the error
was detected, but in the exit path the variable was dereferenced before
the error code was checked.

Reported by:	np
MFC after:	3 days
X-MFC with:	r303763

Prepare to deprecate the netvsc_packet.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7436

_prison_check_ip4 renamed to prison_check_ip4_locked

Move IPv6-specific jail functions to new file netinet6/in6_jail.c
_prison_check_ip6 renamed to prison_check_ip6_locked

Add appropriate prototypes to sys/sys/jail.h

Adjust kern_jail.c to call prison_check_ip4_locked and
prison_check_ip6_locked accordingly.

Add netinet/in_jail.c and netinet6/in6_jail.c to the list of files that
need to be built when INET and INET6, respectively, are configured in the
kernel configuration file.

Reviewed by:	jtl
Approved by:	sjg (mentor)
Sponsored by:	Juniper Networks, Inc.
Differential Revision:	https://reviews.freebsd.org/D6799

Sponsored by:	Chelsio Communications

If the listening socket is closed while sonewconn() is executing, the
nascent child socket is aborted, which results in recursion on the
unp_link lock when the child's pru_detach method is invoked. Fix this
by using a flag to mark such sockets, and skip a part of the socket's
teardown during detach.

Reported by:	Raviprakash Darbha <rdarbha@juniper.net>
Tested by:	pho
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D7398

PPTP VPN connection.

Submitted by:	Michael Zhilin <mizhka@gmail.com>
Reviewed by:	ngie
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D7209

in GENERIC.

Fixup #ifdef RSS code blocks so that they build and add/delete variables
that were missesd during the creation of this code.

This code is untested and should have a big red warning on it.

Reported by:	npn@
MFC after:	2 days

Zero fib is correct value and it conflicts with IP_FW_TARG.
Use bprint_uint_arg() only when opcode contains IP_FW_TARG,
otherwise just print numeric value with cleared high-order bit.

MFC after:	3 days

This has been safe for a while.

Sponsored by:	EMC / Isilon Storage Division

setdscp's argument can have zero value that conflicts with IP_FW_TARG value.
Always set high-order bit if parser doesn't find tablearg keyword.

MFC after:	3 days

PR:	208703, 208963

Note that these tests should work fine on NetBSD and other systems as
SIGEV_THREAD is POSIX.

Differential Revision:	https://reviews.freebsd.org/D7121

driver. This change significantly increases the overall RX aggregation
ratio for heavily loaded networks handling 10-80 thousand simultaneous
connections.

Remove the turbo LRO code and all references to it which has now been
superceeded by the tcp_lro_queue_mbuf() function.

Tested by:	Netflix
Sponsored by:	Mellanox Technologies
MFC after:	1 week

In one corner case in the bxe TX path, a NULL mbuf could be enqueued onto
a drbr queue.  This could case a KASSERT to fire with INVARIANTS enabled,
or the processing of packets from the queue to be prematurely ended later
on.

Submitted by:	Matt Joras (matt.joras AT isilon.com)
Reviewed by:	davidcs
MFC after:	3 days
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D7041

last SID/SSN pair wasn't filled in.
Thanks to Julian Cordes for providing a packetdrill script
triggering the issue and making me aware of the bug.

MFC after:	3 days

CloudABI executables that are emulated on Mac OS X do not invoke system
calls through "syscall". Instead, they make use of a vDSO that is
provided by the emulator that provides symbols for all of the system
call routines. The emulator can implement these any way it likes.

At some point in time we want to do this for native execution as well,
so that CloudABI executables are entirely oblivious of how system calls
need to be performed. They will simply call into functions and let that
deal with all of the details.

These source files can be used to generate a simple vDSO that does
nothing more than invoke "syscall". All we need to do now is map it into
the processes.

Obtained from:	https://github.com/NuxiNL/cloudabi

if we didn't find any of them.  This reduces log spam about key files for
deprecated algorithms, which we look for but don't generate.

PR:		208254
MFC after:	3 days

The inp read lock neeeds to be held when considering control->do_not_ref_stcb.
MFC after:	3 days

Replace alpha reference in getconf(1) with amd64 [*]

MFC after:	1 week
PR:	 	211300 [*]
Submitted by:	Sevan Janiyan <venture37@geeklan.co.uk> [*]
Sponsored by:	EMC / Isilon Storage Division

The saved channel callback in util softc is actually never used.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7424

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7423

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7422

Sponsored by:	Microsoft

MFC after:	3 days