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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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 if_cpsw(4) to IfAPI

Reviewed By: manu
Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D37789

sys/arm: 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/arm: 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@r313243

Merge ^/head r312624 through r312719.

Properly assemble an mbuf chain out of received fragments.

Remove the rx_batch hack, it makes no difference now that most of bugs have
been sorted out.

Sponsored by: Rubicon Communications, LLC (Ne

Properly assemble an mbuf chain out of received fragments.

Remove the rx_batch hack, it makes no difference now that most of bugs have
been sorted out.

Sponsored by: Rubicon Communications, LLC (Netgate)

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Merge ^/head r312309 through r312623.

Commit the struture changes for the padding of small packets on if_cpsw.

Should have been committed together with r312604.

MFC with: r312604

Merge ^/head r309263 through r309518.

MDIO_PHYACCESS_ACK is only valid for read access, remove it from
miibus_writereg.

Reduce the DELAY() between reads while waiting for MII access.

Spotted by: yongari
Sponsored by: Rubicon Communicat

MDIO_PHYACCESS_ACK is only valid for read access, remove it from
miibus_writereg.

Reduce the DELAY() between reads while waiting for MII access.

Spotted by: yongari
Sponsored by: Rubicon Communications, LLC (Netgate)

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Merge ^/head r309106 through r309117.

Add the etherswitch(4) support for TI CPSW.

Adds VLAN and port management abilities for etherswitchcfg(8).

The code is conditionally enabled for now, because it is not necessary on
single ethernet

Add the etherswitch(4) support for TI CPSW.

Adds VLAN and port management abilities for etherswitchcfg(8).

The code is conditionally enabled for now, because it is not necessary on
single ethernet use cases.

Obtained from: pfSense
MFC after: 2 weeks
Sponsored by: Rubicon Communications, LLC (Netgate)

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Merge ^/head r306412 through r306905.

if_cpsw overhaul:

- Fix RX and TX teardown:
. TX teardown would not reclaim the abandoned descriptors;
. Interrupt storms in RX teardown;
. Fixed the acknowledge of the teardown completion int

if_cpsw overhaul:

- Fix RX and TX teardown:
. TX teardown would not reclaim the abandoned descriptors;
. Interrupt storms in RX teardown;
. Fixed the acknowledge of the teardown completion interrupt.

- Remove temporary lists for the descriptors;

- Simplified the descriptor handling (less writes and reads from
descriptors where possible);

- Better debug;

- Add support for the RX threshold interrupts:
With interrupt moderation only, an RX overrun is likely to happen. The
RX threshold is set to trigger a non paced interrupt everytime your RX
free buffers are under the minimum threshold, helping to prevent the rx
overrun.

The NIC now survive when pushed over its limits (where previously it would
lock up in a few seconds).

uFW (600MHz SoC) can now forward up to 560Mb/s of UDP traffic (netmap
pkt-gen as source and sink). TCP forwarding rate is over 350Mb/s.

No difference (other than CPU use) was seen on Beaglebone black (1GHz SoC)
for his fast ethernet.

Tested on: uFW, BBB
Sponsored by: Rubicon Communications, LLC (Netgate)

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Merge ^/head r306303 through 306411.

Add a sysctl to control the interrupt pacing on AM335x integrated switch.

The hardware can be set to limit the number of interrupts from 2 to 63
interrupts per ms.

To keep the compatibility with th

Add a sysctl to control the interrupt pacing on AM335x integrated switch.

The hardware can be set to limit the number of interrupts from 2 to 63
interrupts per ms.

To keep the compatibility with the TI documentation the sysctl take the
interval between the interrupts pulses: 16~500 us.

Sponsored by: Rubicon Communications, LLC (Netgate)

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Fix a lockup in tx path for cspw.

Sometimes the software loses the race when appending more descriptors to
the tx ring and the tx queue stops.

This commit detects this condition and restart the tx

Fix a lockup in tx path for cspw.

Sometimes the software loses the race when appending more descriptors to
the tx ring and the tx queue stops.

This commit detects this condition and restart the tx queue whenever it stall.

Tested by: sobomax@, Keith White <kwhite@site.uottawa.ca>,
Paul Mather <paul@gromit.dlib.vt.edu>
Sponsored by: Rubicon Communications (Netgate)
Approved by: re (kib)

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MFH

Sponsored by: The FreeBSD Foundation

Count the input and output packets.

Sponsored by: Rubicon Communications (Netgate)

Add support for dual emac mode.

In dual emac mode, the CPSW subsystem provides two independent ethernets.

This is implemented (as recommended by TI's TRM) with a mixture of switch
settings (vlans)

Add support for dual emac mode.

In dual emac mode, the CPSW subsystem provides two independent ethernets.

This is implemented (as recommended by TI's TRM) with a mixture of switch
settings (vlans) and specific features of CPSW subsystem.

The driver was splitted to accommodate the shared parts (RX and TX rings
for example) while it still provides two independent ethernets.

Each of the ethernet ports driver has it's own set of MDIO registers among
the other private settings.

Previously this driver always operate in promisc mode, now the Switch ALE
(address table entry) is properly initialized and enabled.

The driver is also tested (and known to work) with both ports operating in
single port mode (active_slave 0 or 1).

Tested on uBMC (dual emac mode, both ports in single mode, giga and fast
ethernet) and BBB (single port, fast ethernet).

Sponsored by: Rubicon Communications (Netgate)

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Fixes a few style(9) issues, remove extra blank lines.

No functional changes.

Sponsored by: Rubicon Comunications (Netgate)

Catch up with HEAD (r280229-r284686).

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Merge sync of head