sys: Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Merge ^/head r308491 through r308841.

Allow operation with UTMI+ phy.

Submitted by: kan
Sponsored by: DARPA, AFRL

MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head (r291075).

Avoid using the bounce buffer when the source or destination buffer is
32-bits aligned. Merge the two bounce buffers into a single one. Some
rough tests showed that the DWC OTG throughput on RPI2 inc

Avoid using the bounce buffer when the source or destination buffer is
32-bits aligned. Merge the two bounce buffers into a single one. Some
rough tests showed that the DWC OTG throughput on RPI2 increased by
10% after this patch.

MFC after: 1 week

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Merge from head

Sponsored by: Gandi.net

Finish merging from head, messed up in previous attempt

Merge from head

Merge r286744-r287584 from head.

Merge from HEAD

Merge ^/head r286697 through r286857.

Fixes for HIGH speed ISOCHRONOUS traffic. HS ISOCHRONOUS traffic at
intervals less than 250us was not handled properly. Add support for
high-bandwidth ISOCHRONOUS packets. USB webcams, USB audio and

Fixes for HIGH speed ISOCHRONOUS traffic. HS ISOCHRONOUS traffic at
intervals less than 250us was not handled properly. Add support for
high-bandwidth ISOCHRONOUS packets. USB webcams, USB audio and USB DVB
devices are expected to work better. High-bandwidth INTERRUPT
endpoints is not yet supported.

MFC after: 2 weeks

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Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285924 through r286421.

Optimise the DWC OTG host mode driver's receive path:

Remove NAKing limit and pause IN and OUT transactions for 125us in
case of NAK response for BULK and CONTROL endpoints. This gets the
receive la

Optimise the DWC OTG host mode driver's receive path:

Remove NAKing limit and pause IN and OUT transactions for 125us in
case of NAK response for BULK and CONTROL endpoints. This gets the
receive latency down and improves USB network throughput at the cost
of some CPU usage.

MFC after: 1 month

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Merge ^/head r285341 through r285792.

Optimise the DWC OTG host mode driver's transmit path:

1) Use the TX FIFO empty interrupts to poll the transmit FIFO usage,
instead of using own software counters and waiting for SOF
interrupts. Ass

Optimise the DWC OTG host mode driver's transmit path:

1) Use the TX FIFO empty interrupts to poll the transmit FIFO usage,
instead of using own software counters and waiting for SOF
interrupts. Assume that enough FIFO space is available to execute one
USB OUT transfer of any kind when the TX FIFO is empty.

2) Use the host channel halted event to asynchronously wait for host
channels to be disabled instead of waiting for SOF interrupts. This
results in less turnaround time for re-using host channels and at the
same time increases the performance.

The network transmit performance measured by "iperf" for the "RPi-B v1
2011/12" board, increased from 45MBit/s to 65Mbit/s after applying the
changes above.

No regressions seen using:
- High Speed (BULK, CONTROL, INTERRUPT)
- Full Speed (All transfer types)
- Low Speed (Control and Interrupt)

MFC after: 1 month
Submitted by: Daisuke Aoyama <aoyama@peach.ne.jp>

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Catch up with HEAD (r280229-r284686).

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Merge sync of head

Make the FIFO configuration a bit more flexible for the DWC OTG in
device side mode.

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)