dev: Use recently added improvements to PME# support to simplify drivers

Depend on the PCI bus driver clearing PME# after resume to remove the
need for clearing PME# from DEVICE_RESUME methods.

Use

dev: Use recently added improvements to PME# support to simplify drivers

Depend on the PCI bus driver clearing PME# after resume to remove the
need for clearing PME# from DEVICE_RESUME methods.

Use pci_has_pm and pci_enable_pme.

Reviewed by: Krzysztof Galazka <krzysztof.galazka@intel.com>
Differential Revision: https://reviews.freebsd.org/D49251

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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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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Mechanically convert age(4), alc(4), and ale(4) to IfAPI

Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D37787

alc(4): add support for Mikrotik 10/25G NIC

The new Mikrotik 10/25G NIC is mostly compatible with AR8151 hardware,
with few exceptions:

* card supports only 32bit DMA operations
* card does not sup

alc(4): add support for Mikrotik 10/25G NIC

The new Mikrotik 10/25G NIC is mostly compatible with AR8151 hardware,
with few exceptions:

* card supports only 32bit DMA operations
* card does not support write-one-to-clear semantics for interrupt status
register
* MDIO operations can take longer to complete

This patch adds support for Mikrotik 10/25G NIC to the alc driver
while maintaining support for all earlier HW.

The patch was tested with FreeBSD main branch as of commit
f4b38c360e63a6e66245efedbd6c070f9c0aee55

This was tested on Intel i7-4790K system with Mikrotik 10/25G NIC.
This was tested on Intel i7-4790K system with RB44Ge (AR8151 based 4-port NIC)
to verify backwards compatibility.

PR: 256000
Submitted by: Gatis Peisenieks <gatis@mikrotik.com>
MFC after: 1 week

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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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MFhead @ r304815

Merge ^/head r304537 through r304699.

Add a missing change in r304575.

Noticed by: jhb

Merge from head@274682

Reintegrate head@r273095

Sponsored by: The FreeBSD Foundation

Merge HEAD@r272944.

IFC @r272887

Sync to HEAD@r272825.

Add support for QAC AR816x/AR817x Gigabit/Fast Ethernet controllers.
These controllers seem to have the same feature of AR813x/AR815x and
improved RSS support(4 TX queues and 8 RX queues). alc(4) su

Add support for QAC AR816x/AR817x Gigabit/Fast Ethernet controllers.
These controllers seem to have the same feature of AR813x/AR815x and
improved RSS support(4 TX queues and 8 RX queues). alc(4) supports
all hardware features except RSS. I didn't implement RX checksum
offloading for AR816x/AR817x just because I couldn't get
confirmation from the Vendor whether AR816x/AR817x corrected its
predecessor's RX checksum offloading bug on fragmented packets.
This change adds supports for the following controllers.
o AR8161 PCIe Gigabit Ethernet controller
o AR8162 PCIe Fast Ethernet controller
o AR8171 PCIe Gigabit Ethernet controller
o AR8172 PCIe Fast Ethernet controller
o Killer E2200 Gigabit Ethernet controller

Tested by: Many
Relnotes: yes
MFC after: 2 weeks
HW donated by: Qualcomm Atheros Communications, Inc.

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MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

Increase the number of TX DMA segments from 32 to 35. It turned
out 32 is not enough to support a full sized TSO packet.
While I'm here fix a long standing bug introduced in r169632 in
bce(4) where

Increase the number of TX DMA segments from 32 to 35. It turned
out 32 is not enough to support a full sized TSO packet.
While I'm here fix a long standing bug introduced in r169632 in
bce(4) where it didn't include L2 header length of TSO packet in
the maximum DMA segment size calculation.

In collaboration with: rmacklem
MFC after: 2 weeks

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Merge svn+ssh://svn.freebsd.org/base/head@218816

- Move ether_ifdetach() earlier and remove now-unneeded IN_DETACH flag.
- Expand locking in interrupt handler.

Reviewed by: yongari

Add a 'locked' variant of the foo_start() routine and call it directly
from interrupt handlers and watchdog routines instead of queueing a task
to call foo_start().

Reviewed by: yongari
MFC after: 1

Add a 'locked' variant of the foo_start() routine and call it directly
from interrupt handlers and watchdog routines instead of queueing a task
to call foo_start().

Reviewed by: yongari
MFC after: 1 month

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Merge svn+ssh://svn.freebsd.org/base/head@211344

Add support for Atheros AR8151/AR8152 PCIe gigabit/fast ethernet
controller. These controllers are known as L1D(AR8151) and
L2CB/B2(AR8152). This change adds supports for the following
controllers.

Add support for Atheros AR8151/AR8152 PCIe gigabit/fast ethernet
controller. These controllers are known as L1D(AR8151) and
L2CB/B2(AR8152). This change adds supports for the following
controllers.
o AR8151 v1.0(L1D) gigabit ethernet controller
o AR8151 v2.0(L1D) gigabit ethernet controller
o AR8152 v1.1(L2CB) fast ethernet controller
o AR8152 v2.0(L2CB2) fast ethernet controller
These controllers have the same feature of AR8131/AR8132 and
support improved power saving control. The user visible change at
this moment is reduced jumbo frame size from 9KB to 6KB. Many
thanks to Atheros for continuing to support FreeBSD.

HW donated by: Atheros Communications, Inc.

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Cache PCIY_PMG and PCIY_EXPRESS capability pointer to softc and use
it instead of calling pci_find_extcap().