Add the Asus USB-N10 NANO.

Tested by:	Kuan-Chung Chiu <buganini@gmail.com>
Fix wrong sizes used to access PD_Type and PD_State DDF metadata fields.

This caused incorrect behavior of arrays with big-endian DDF metadata.
Little-endian (like used by Adaptec controllers) should not be harmed.
Add workaround should be enough to manage compatibility.

MFC after:	2 weeks
Fix EFI loader object tree creation on 9.x build hosts

Previously ${COMPILER_TYPE} was checked in sys/boot/amd64, and the efi
subdirectory was skipped altogether for gcc (since GCC does not support
a required attribute).  However, during the early buildworld stages
${COMPILER_TYPE} is the existing system compiler (i.e., gcc on 9.x build
hosts), not the compiler that will eventually be used.  This caused
"make obj" to skip the efi subdirectory.  In later build stages
${COMPILER_TYPE} is "clang", and then the efi loader would attempt to
build in the source directory.

Sponsored by:	The FreeBSD Foundation
Fix spelling error in g_trace() call.

Sponsored by:	EMC / Isilon Storage Division
MFC after:	1 week
Currently, the TCP slow timer can starve TCP input processing while it
walks the list of connections in TIME_WAIT closing expired connections
due to contention on the global TCP pcbinfo lock.

To remediate, introduce a new global lock to protect the list of
connections in TIME_WAIT.  Only acquire the TCP pcbinfo lock when
closing an expired connection.  This limits the window of time when
TCP input processing is stopped to the amount of time needed to close
a single connection.

Submitted by:	Julien Charbon <jcharbon@verisign.com>
Reviewed by:	rwatson, rrs, adrian
MFC after:	2 months
- Adding myself to the committers-ports.dot
- Adding myself to the freebsd calendar

Approved by: swills (mentor)
In if_freemulti(), relax the paranoid KASSERT() on ifma->ifma_protospec.

This KASSERT() existed as a sanity check that upper layers in the network
stack (e.g. inet, inet6) had released their reference to the underlying
driver's multicast memberships (ifmultiaddr{}). However it assumes the
lifecycle of the driver membership corresponds to the lifecycle of the
network layer membership.

In the submitter's case, ieee80211_ioctl_updatemulti() attempts to
reprogram the (parent, physical) ifnet{} memberships in response
to a change in membership on the (child, virtual) VAP ifnet, using
a batched update mechanism. These updates happen independently from
the network layer, causing a "false negative" assertion failure.

There are possibly other use cases where this KASSERT() may be triggered
by other networking stack activity (e.g. where a nesting relationship
exists between multiple ifnet{} instances). This suggests that further
review of FreeBSD's approach to nested ifnet relationships is needed.

MFC after:	6 weeks
Submitted by:	adrian@
Rework r264179.

- remove redundant code
- remove erroneous setting of the error return
  in vmmdev_ioctl()
- use style(9) initialization
- in vmx_inject_pir(), document the race condition
  that the final conditional statement was detecting,

Tested with both gcc and clang builds.

Reviewed by:	neel
Refine r264257; given that I later on decided to nuke the wildcard for
the Sunix 0x1999 line of chips there actually is no need to explicitly
keep puc(4) from attaching to the single port version anymore.
Small performance optimization.  Clobber only cr0, rather than the entire CR.

Discussed with:	rdivacky,nwhitehorn
MFC after:	3 weeks
Correct IMOD default value according to comment.

Reported by:	Daniel O'Connor <doconnor@gsoft.com.au>
MFC after:	1 week
Create zvol devices on zfs clone.

While big and shiny patch is not ready, it is better to have something.

PR:		kern/178999
MFC after:	1 week
Don't leak the TCP pcbinfo lock if a time wait connection is closed
in between grabbing a reference on the connection structure and obtaining
the pcbinfo lock.

Reviewed by:	Julien Charbon
Add SRC_UPDATE_SKIP, DOC_UPDATE_SKIP, and PORTS_UPDATE_SKIP
variables.  These are intended to allow bypassing the
'svn co /usr/{src,doc,ports}' step in the chroot when the
tree exists from external means.

The use case here is that /usr/src, /usr/doc, and /usr/ports
in the chroot exist as result of zfs dataset clones, so it
is possible (and happens quite often) that the included
distributions may not be consistent.  (This is not the case
for -RELEASE builds, but does happen for snapshot builds.)

Tested on:	stable/9@r264319
MFC After:	3 days
Sponsored by:	The FreeBSD Foundation
Tune buffer sizes for SuperSpeed USB when using LibUSB v0.1 and v1.0
APIs to increase the maximum bandwidth limit.

MFC after:	1 week
Amend r263891, by making clang default to DWARF2 debug info format for
all FreeBSD versions, not just 10.x and earlier.  Apparently too many
people seem to have trouble with post-1993 formats.

Also remove the related notes about messing with kernel configuration
files from UPDATING, which are now superfluous.

Requested by:	many
MFC after:	3 days
Before calling mmap() on a shared library's text and data sections, rtld
first calls mmap() with the arguments PROT_NONE and MAP_ANON to reserve a
single, contiguous range of virtual addresses for the entire shared library.
Later, rtld calls mmap() with the the shared library's file descriptor
and the argument MAP_FIXED to place the text and data sections within the
reserved range.  The rationale for mapping shared libraries in this way is
explained in the commit message for Revision 190885.  However, this approach
does have an unintended, negative consequence.  Since the first call to
mmap() specifies MAP_ANON and not the shared library's file descriptor, the
kernel has no idea what alignment the vm object backing the file prefers.
As a result, the reserved range's alignment is unlikely to be the same as
the vm object's, and so mapping with superpages becomes impossible.  To
address this problem, this revision adds the argument MAP_ALIGNED_SUPER to
the first call to mmap() if the text section is larger than the smallest
superpage size.

To determine if the text section is larger than the smallest superpage
size, rtld must always fetch the page size information.  As a result, the
private code for fetching the base page size in rtld's builtin malloc is
redundant.  Eliminate it.  Requested by: kib

Tested by:	zbb (on arm)
Reviewed by:	kib (an earlier version)
Discussed with:	jhb
Account for the "plus 1" encoding of the CPUID Function 4 reported
core per package and cache sharing values.

Approved by:	grehan (co-mentor)
Improve use of socket buffer upcalls.

Use soreadable()/sowriteable() in socket upcalls to avoid extra wakeups
until we have enough data to read or space to write.

Increase partial receive len from 1K to 128K to not wake up on every
received packet.

This significantly reduces locks congestion and CPU usage and improves
throughput for large I/Os on NICs without TSO and LRO.

Reviewed by:	trasz
Sponsored by:	iXsystems, Inc.
mdoc and spelling cleanup.

MFC after:	3 days