Add ATU flush support.

The OpenWRT AR8xxx switch support flushes the ATU (address translation
unit) after each port link 'up' status change. I've modified this to
just flush on any port transition.

Add ATU flush support.

The OpenWRT AR8xxx switch support flushes the ATU (address translation
unit) after each port link 'up' status change. I've modified this to
just flush on any port transition.

Whilst here, bump the number of ports on the AR8327 to 6, rather than
the default of 5. It's DB120 specific; I'll go and make this configurable
later.

There's some debugging code in here still; I am still debugging whether
this is or isn't working fully.

Tested:

* DB120, AR9344 + AR8327 switch

Obtained from: OpenWRT

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Merge from head up to r262472.

Add in port0/port6 configuration as part of the platform data code path.

It's still hardcoded (for db120) but it is now hardcoded in all the
same place (ie, the pdata path.) The port config/status

Add in port0/port6 configuration as part of the platform data code path.

It's still hardcoded (for db120) but it is now hardcoded in all the
same place (ie, the pdata path.) The port config/status code now checks
port0/port6 as appropriate to configure things.

Tested:

* Qualcomm Atheros DB120, AR8327 switch.

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* Ensure enough ports/phys are available for both the AR8327 and previous
switches.

* Add some new VLAN HAL methods that will be used by the VLAN configuration
code. The AR933x and later switch

* Ensure enough ports/phys are available for both the AR8327 and previous
switches.

* Add some new VLAN HAL methods that will be used by the VLAN configuration
code. The AR933x and later switches use slightly different register
layouts (even though the driver currently doesn't support it.)

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MFH: tracking commit

Sponsored by: The FreeBSD Foundation

Add methods for the VLAN port set/get routines.

The registers (and perhaps the flags) are different for the AR8327, so
I'll stub those out until they're written.

Tested:

* DB120 - both on-chip AR9

Add methods for the VLAN port set/get routines.

The registers (and perhaps the flags) are different for the AR8327, so
I'll stub those out until they're written.

Tested:

* DB120 - both on-chip AR9340 and AR8327 switches.

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Add a new method to set up the individual port in question.

The AR8327 requires some different setup code.

Add in the AR8327 probe/attach code and switch type.

It detects fine, but (as expected) it won't attach just yet, let alone
pass traffic.

Tested:

* DB120, AR8327 switch

Store away the chip version and revision; some AR8327 code depends upon
the chip revision.

Add in a flag to control whether the low or high data word of a register access
is latched in first.

The AR8327 apparently requires the low data word be latched in first.

Obtained from: Linux OpenW

Add in a flag to control whether the low or high data word of a register access
is latched in first.

The AR8327 apparently requires the low data word be latched in first.

Obtained from: Linux OpenWRT

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MFC @ r259205 in preparation for some SVM updates. (for real this time)

Merge head r233826 through r256722.

Prepare to link in the AR934x SoC switch support.

* Add an AR9340 switch version entry;
* Support the switch being connected via MII;
* Add a flag to note that a switch is actually an internal
swi

Prepare to link in the AR934x SoC switch support.

* Add an AR9340 switch version entry;
* Support the switch being connected via MII;
* Add a flag to note that a switch is actually an internal
switch rather than an external switch.

Now:

* The ar9340 switch can interconnect via MII;
* Since some slightly different phy/switch register access methods
and quirks appear for the internal versus external switch,
we will need a flag to mark it as an "internal" switch.

Tested:

* AR9344 (internal switch)
* AR9331 (internal switch)

TODO:

* Test the AR8316 switch!

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IFC @256277

Approved by: ken (mentor)

Merge from head

IFC @ r254014

IFC @ r253862

- change the SI_SUB_RUN_SCHEDULER sysinits in hv_utilc and
hv_netvsc_drv_freebsd.c to SI_SUB_KTHREAD_IDLE, since the
former is no longer in FreeBSD.
The use of these SYSINITs can pro

IFC @ r253862

- change the SI_SUB_RUN_SCHEDULER sysinits in hv_utilc and
hv_netvsc_drv_freebsd.c to SI_SUB_KTHREAD_IDLE, since the
former is no longer in FreeBSD.
The use of these SYSINITs can probably be removed.

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Add the support for 802.1q and port based vlans for arswitch.

Tested on: RB450G (standalone ar8316), RSPRO (standalone ar8316) and
TPLink MR-3220 (ar724x integrated switch).

Approved by: adrian (me

Add the support for 802.1q and port based vlans for arswitch.

Tested on: RB450G (standalone ar8316), RSPRO (standalone ar8316) and
TPLink MR-3220 (ar724x integrated switch).

Approved by: adrian (mentor)
Obtained from: zrouter

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Fix the arswitch instability problem. It turns out that the
arswitch_writereg() routine was writing the registers in the wrong order.

Revert -r241918 as the root problem is now fixed. Remove anothe

Fix the arswitch instability problem. It turns out that the
arswitch_writereg() routine was writing the registers in the wrong order.

Revert -r241918 as the root problem is now fixed. Remove another workaround
from arswitch_ar7240.c.

Simplify and fix the code on arswitch_writephy() by using
arswitch_writereg().

While here remove a redundant declaration from arswitchvar.h.

Approved by: adrian (mentor)

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Merge fresh head.

MFC

IFC @ r242684

Sync from head

Fix tiypo.

Submitted by: Luiz Otavio O Souza
Approved by: adrian (mentor)

IFC @ r238370