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

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

arswitch(4): Remove support for AR{7240,9340} found in MIPS SoCs only

With the general removal of MIPS support there's no longer a need to
support these integrated switches.

Approved by: adrian
Dif

arswitch(4): Remove support for AR{7240,9340} found in MIPS SoCs only

With the general removal of MIPS support there's no longer a need to
support these integrated switches.

Approved by: adrian
Differential Revision: https://reviews.freebsd.org/D41394

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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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[arswitch] Implement the switch MAC address fetch API.

The placeholders are here for some future "set" MAC address API.

Tested:

* AR9340 switch
* AR8327 switch

[arswitch] fix build breakage.

Apparently the last time I checked building this it didn't pick up that the
header had changed.

[arswitch] fix mac address field definition.

Whilst here, add some further fields for future experimenting.

Tested:

* AR9340 switch
* AR9330 switch
* AR7240 switch

[arswitch] fix up issues on the AR8327.

This correctly dumps the ethernet bridge contents on an AR8327 switch.

Tested:

* AP135 - QCA9550 + AR8327 ethernet switch:

# etherswitchcfg atu dump
[0] c

[arswitch] fix up issues on the AR8327.

This correctly dumps the ethernet bridge contents on an AR8327 switch.

Tested:

* AP135 - QCA9550 + AR8327 ethernet switch:

# etherswitchcfg atu dump
[0] c0:3f:d5:7e:6f:45: portmask 0x00000004
[1] f6:b6:03:96:1e:ba: portmask 0x00000004
[2] 00:03:7f:11:38:4f: portmask 0x00000040
# arp -na
? (192.168.3.170) at 00:03:7f:11:38:4f on arge0 permanent [ethernet]
? (192.168.3.12) at c0:3f:d5:7e:6f:45 on arge0 expires in 1188 seconds [ethernet]
? (192.168.3.1) at f6:b6:03:96:1e:ba on arge0 expires in 1186 seconds [ethernet]

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[arswitch] add initial functionality for AR8327 ATU management.

* Add the bulk of the ATU table read function
* Correct how the ATU function and WAIT bits work

TODO:

* more testing, figure out how

[arswitch] add initial functionality for AR8327 ATU management.

* Add the bulk of the ATU table read function
* Correct how the ATU function and WAIT bits work

TODO:

* more testing, figure out how the multi-vlan table stuff works and push that
up to userspace

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[arswitch] begin tidying up the learning and ATU management, introduce ATU APIs.

* Refactor the initial learning configuration (port learning, address expiry,
handling address moving between ports

[arswitch] begin tidying up the learning and ATU management, introduce ATU APIs.

* Refactor the initial learning configuration (port learning, address expiry,
handling address moving between ports, etc, etc) into a separate HAL routine
* and ensure that it's consistent between switch chips - the AR8216,8316,724x,9331
SoCs all share the same switch code.
* .. the AR8327 needs doing - the defaults seem OK for now
* .. the AR9340 is different but it's also programmed now.

* Add support for flushing a single port worth of ATU entries
* Add support for fetching the ATU table from AR8216 and derived chips

Tested:

* AR9344, Carambola 2

TODO:

* Further testing on other chips
* Add AR9340 support
* Add AR8327 support

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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 sync of head

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

Merge r278538 through r280226.

Merge from head

Merge ^/head r279759 through r279892.

Add per-port vlan support for the AR8327.

All the per-port support is really doing is applying a port visibility
mask to each of the switchports. Everything still look like a single
portgroup (vlan

Add per-port vlan support for the AR8327.

All the per-port support is really doing is applying a port visibility
mask to each of the switchports. Everything still look like a single
portgroup (vlan id 1), but the per-port visibility mask is modified.

Whilst I'm here, also add some initial dot1q support - the pvid stuff
is doing the right thing, but it's not useful without the rest of
the VLAN table programming.

It's enough for me to be able to use the LAN/WAN port distinction
on the AP135, where there isn't (for now!) a dedicated PHY for the
"WAN" port.

Tested:

* AP135, QCA9558 SoC + AR8327 switch

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Merge from head

Merge ^/head r279313 through r279595.

Merge r278538 through r279514.

Add another register definition for the AR8327.

Obtained from: OpenWRT

MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

Merge head up to r263906.

Add AR8216 era ATU management/configuration register definitions.

Obtained from: OpenWRT