LinuxKPI: firmware: change order filenames trying to load firmware

Given we have the support in main and stable/14 to load plain firmware
files from /boot/firmware/ make use of that. Switch the ord

LinuxKPI: firmware: change order filenames trying to load firmware

Given we have the support in main and stable/14 to load plain firmware
files from /boot/firmware/ make use of that. Switch the order to
try the original unmangled filename and path first before trying any
replacements.
This reduces time and console noise (especially under bootverbose).

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D47682

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sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

LinuxKPI: firmware: add request_partial_firmware_into_buf()

A (so far out-of-tree) driver update needs
request_partial_firmware_into_buf(). Given we load the full .ko file
using firmware(9) just do

LinuxKPI: firmware: add request_partial_firmware_into_buf()

A (so far out-of-tree) driver update needs
request_partial_firmware_into_buf(). Given we load the full .ko file
using firmware(9) just do that and copy the requeste data into the
buffer (rather than poissibly only reading portions of the firmware
file).

MFC after: 1 week

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LinuxKPI: fix -Wunused-but-set-variable warnings

Handle write-only variables by removing the unused return value from void
functions or removing the unused variables entirely.

Sponsored by: The Fre

LinuxKPI: fix -Wunused-but-set-variable warnings

Handle write-only variables by removing the unused return value from void
functions or removing the unused variables entirely.

Sponsored by: The FreeBSD Foundation
MFC after: 10 days
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D33107

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LinuxKPI: firmware, implement deferred loading for "nowait"

Change linuxkpi_request_firmware_nowait() to deferred firmware loading
scheduling a task. This changes behaviour in some cases that we
re

LinuxKPI: firmware, implement deferred loading for "nowait"

Change linuxkpi_request_firmware_nowait() to deferred firmware loading
scheduling a task. This changes behaviour in some cases that we
return from loading the driver before the driver is finished
initialising if the driver does not deal with it (wait).
This brings the behaviour one would expect from when this function is
called and I implemented it to see if it would help a specific case.

Sponsored by: The FreeBSD Foundation
MFC after: 12 days
Reviewed by: hselasky, imp (earlier version)
Differential Revision: https://reviews.freebsd.org/D30830

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LinuxKPI: treat firmware file names more lenient

A lot of firmware files have a "-" in the name. That "-" is a problem
when dealing with shell variables or loader (e.g., auto-loading .ko).
It may t

LinuxKPI: treat firmware file names more lenient

A lot of firmware files have a "-" in the name. That "-" is a problem
when dealing with shell variables or loader (e.g., auto-loading .ko).
It may thus often be convenient to generate firmware kernel object files
with s/-/_/g in the name. In order to automatically find them from
drivers using LinuxKPI also substitue the '-' for a '_' like we do
for '/' and '.' already.

Reviewed-by: hselasky, manu (ok)
MFC-after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D29514

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LinuxKPI: add firmware loading support

Implement linux firmware KPI compat code.
This includes: request_firmware() request_firmware_nowait(),
request_firmware_direct(), firmware_request_nowarn(),
an

LinuxKPI: add firmware loading support

Implement linux firmware KPI compat code.
This includes: request_firmware() request_firmware_nowait(),
request_firmware_direct(), firmware_request_nowarn(),
and release_firmware().

Given we will try to map requested names from natively ported
or full-linuxkpi-using drivers to a firmware(9) auto-loading
name format (.ko file name and image name matching),
we quieten firmware(9) and print success or failure (unless
the _nowarn() version was called) in the linuxkpi implementation.
At the moment we try up-to 4 different naming combinations,
with path stripped, original name, and requested name with '/'
or '.' replaced.

We do not currently defer loading in the "nowait" case.

Sponsored-by: The FreeBSD Foundation
Sponsored-by: Rubicon Communications, LLC ("Netgate")
(firmware(9) nowarn update from D27413)
MFC after: 3 days
Reviewed by: kib, manu (looked at older versions)
Differential Revision: https://reviews.freebsd.org/D27414

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