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

Remove /^\s*\*\n \*\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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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net80211: ratectl header guard against multiple inclusions

Add missing #ifndef/#define/#endif guards against multiple inclusions
to ieee80211_ratectl.h as they are missing.

MFC after: 3 days
Sponso

net80211: ratectl header guard against multiple inclusions

Add missing #ifndef/#define/#endif guards against multiple inclusions
to ieee80211_ratectl.h as they are missing.

MFC after: 3 days
Sponsored-by: Rubicon Communications, LLC ("Netgate")

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sys: general 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
pro

sys: general 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.

No functional change intended.

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Merge ^/head r306412 through r306905.

net80211: ieee80211_ratectl*: switch to reusable KPI

Replace various void * / int argument combinations with common structures:
- ieee80211_ratectl_tx_status for *_tx_complete();
- ieee80211_ratectl

net80211: ieee80211_ratectl*: switch to reusable KPI

Replace various void * / int argument combinations with common structures:
- ieee80211_ratectl_tx_status for *_tx_complete();
- ieee80211_ratectl_tx_stats for *_tx_update();

While here, improve amrr_tx_update() for a bit:
1. In case, if receiver is not known (typical for Ralink USB drivers),
refresh Tx rate for all nodes on the interface.
2. There was a misuse:
- otus(4) sends non-decreasing counters (as originally intended);
- but ural(4), rum(4) and run(4) are using 'read & clear' registers
to obtain statistics for some period of time (and those 'last period'
values are used as arguments for tx_update()). If arguments are not big
enough, they are just discarded after the next call.

Fix: move counting into *_tx_update()
(now otus(4) will zero out all node counters after every tx_update() call)

Tested with:
- Intel 3945BG (wpi(4)), STA mode.
- WUSB54GC (rum(4)), STA / HOSTAP mode.
- RTL8188EU (urtwn(4)), STA mode.

Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D8037

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MFH

Sponsored by: The FreeBSD Foundation

[net80211] Begin implementing rate control module stats.

* Implement a new ratectl method, which defaults to returning nothing;
* Add a top level sysctl (net.wlan.X.rate_stats) to extract it;
* Add

[net80211] Begin implementing rate control module stats.

* Implement a new ratectl method, which defaults to returning nothing;
* Add a top level sysctl (net.wlan.X.rate_stats) to extract it;
* Add ratectl info for the 'amrr' module.

Tested:

* urtwn(4), STA mode

Differential Revision: https://reviews.freebsd.org/D5630

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Merge sync of head

MFhead @ r277403

Reintegrate head: r274132-r277384

Sponsored by: The FreeBSD Foundation

Reintegrate head revisions r273096-r277147

Sponsored by: The FreeBSD Foundation

Switch around the order of static inline to be in line with how it's
used elsewhere, and to keep gcc-4.7 happy.

This is a request from the DragonflyBSD project.

svn+ssh://svn.freebsd.org/base/head@216199

Sync: merge r215273 through r215318 from ^/head.

The ni_rctls checks are used to verify that a ratectl algo has set up
its internal data. This has been used to bypass missing calls in drivers
which do not use the ratectl framework correctly. Issue

The ni_rctls checks are used to verify that a ratectl algo has set up
its internal data. This has been used to bypass missing calls in drivers
which do not use the ratectl framework correctly. Issue is, not all algos
use that variable, or even have internal data, therefore valid calls are
not done. Fix this by removing the checks, all driver issues should be
resolved.

MFC after: 1 week

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Sync: merge r214649 through r214894 from ^/head.

Instead of using the AMRR ratectl algo as default for drivers which have
the IEEE80211_C_RATECTL flag set, default to NONE for all drivers. Only if
a driver calls ieee80211_ratectl_init() check if th

Instead of using the AMRR ratectl algo as default for drivers which have
the IEEE80211_C_RATECTL flag set, default to NONE for all drivers. Only if
a driver calls ieee80211_ratectl_init() check if the NONE algo is still
selected and try to use AMRR in that case. Drivers are still free to use
any other algo by calling ieee80211_ratectl_set() prior to the
ieee80211_ratectl_init() call.

After this change it is now safe to assume that a ratectl algo is always
available and selected, which renders the IEEE80211_C_RATECTL flag pretty
much useless. Therefore revert r211314 and 211546.

Reviewed by: rpaulo
MFC after: 2 weeks

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Merge svn+ssh://svn.freebsd.org/base/head@214309

Sync: merge r213992 through r214076 from ^/head.

Fix an undefined behaviour if the desired ratectl algo is not available.
This can happen if the algos are built as modules but are not loaded. If
the selected ratectl algo is not available, try to lo

Fix an undefined behaviour if the desired ratectl algo is not available.
This can happen if the algos are built as modules but are not loaded. If
the selected ratectl algo is not available, try to load it (The load
module functions does nothing currently). Add a dummy ratectl algo which
always selects the first available rate. Use that one if the desired algo
is not available.

MFC after: 1 week

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MFC r206367, r206358, r206370, r206371, r206372, r206398, r206415,
r206416, r206417, r206418, r206418:

net80211 ratectl framework.

Update to current version of head.

Merge svn+ssh://svn.freebsd.org/base/head@206571

Swap IEEE80211_RATECTL_TX_SUCCESS/IEEE80211_RATECTL_TX_FAILURE.

Submitted by: PseudoCylon Furukoshi <moonlightakkiy at yahoo.ca>
MFC after: 1 month