sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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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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sys/dev: minor spelling fixes.

Most affect comments, very few have user-visible effects.

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

cxgb: replace r273280 with a more comprehensive fix.

Poll for link state when the link is down, even for interrupt capable
PHYs.

Allow PHYs to report a dubious "partial" link. If this state is see

cxgb: replace r273280 with a more comprehensive fix.

Poll for link state when the link is down, even for interrupt capable
PHYs.

Allow PHYs to report a dubious "partial" link. If this state is seen 3
consecutive times (each check is ~1s apart) then reset the PHY. This is
a workaround for a situation where repeatedly toggling the link from the
peer gets the AEL2005 PHY into a state where it never establishes a PCS
block lock even when everything is in order.

MFC after: 1 week

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Merge from head

IFC @ r254014

IFC @253398

Merge fresh head.

- Correct mispellings of the word occurrence

Submitted by: Christoph Mallon <christoph.mallon@gmx.de> (via private mail)

T3C initialization should setup the parity fence too.

MFC after: 1 week

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

Fix t3_gate_rx_traffic and t3_open_rx_traffic. Parts of them always operated
on XGMAC0 instead of the specified XGMAC.

MFC after: 3 days

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

Always reset the XGMAC's XAUI PCS on a link up.

MFC after: 3 days

Improve cxgb(4)'s behaviour when faced with temporarily "bouncy" links:
- Run the adapter's tick at 1Hz and remove link state checks from it.
Instead, have each port check its link state. Delay th

Improve cxgb(4)'s behaviour when faced with temporarily "bouncy" links:
- Run the adapter's tick at 1Hz and remove link state checks from it.
Instead, have each port check its link state. Delay the check so that
it takes place slightly after the driver is notified of a change in
link state. This is a cheap way to debounce these notifications if
many are received in rapid succession. POLL_LINK_1ST_TIME flag can
also be eliminated as a side effect of these changes.
- Do not reset the PHY when link goes down.
- Clear port's link_fault flag if the PHY indicates link is down.
- get_link_status_r should leave speed and duplex alone when link is down.

MFC after: 1 month

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Eliminate ext_intr_task. The "slow" interrupt handler is already
running on the adapter's task queue. Just do what the task does
instead of enqueueing it.

MFC after: 3 days

Update to current version of head.

cxgb(4) MFCs: r204271,r204274,r204348,r204921,r205944,r205945,r205946,r205947,r205948,r205949,r205950,r206109

r204271:
Accessing an mbuf after it has been handed off to the hardware is a bad
race as

cxgb(4) MFCs: r204271,r204274,r204348,r204921,r205944,r205945,r205946,r205947,r205948,r205949,r205950,r206109

r204271:
Accessing an mbuf after it has been handed off to the hardware is a bad
race as it could already have been tx'd and freed by that time. Place
the bpf tap just _before_ writing the gen bit.

This fixes a panic when running tcpdump on a cxgb interface.

r204274:
There is no need to test __FreeBSD_version for features that have
been around for a long time now (7.1-ish or even earlier); assume
they are present. These includes MSI, TSO, LRO, VLAN, INTR_FILTERS,
FIRMWARE, etc.

Also, eliminate some dead code and clean up in other places as part
of this quick once-over.

r204348:
Support IFCAP_VLANHWTSO in cxgb(4). It works with or without vlanhwtag.
While here, remove old DPRINTFs and tidy up the capability code a bit.

r204921:
Better TwinAx transceiver detection.

Originally submitted by: <Bruno dot Bittner at isilon dot com>
(This is a rewritten, corrected version of that patch)

r205944:
Refresh the firmware version immediately after it is upgraded (or downgraded).

r205945:
Improved PHY EDC settings.

r205946:
Do not attempt to retrieve interrupt information before it is available.

r205947:
Fix build with "nooptions INET"

r205948:
Fix tx drop statistics.

r205949:
Fix signed/unsigned mix-up that allowed txq->in_use to grow beyond txq->size.

r205950:
Multiple fixes related to queue set sizing and resources:

- Only the tunnelq (TXQ_ETH) requires a buf_ring, an ifq, and the watchdog/timer
callouts. Do not allocate these for the other tx queues.

- Use 16k jumbo clusters only on offload capable cards by default.

- Do not allocate a full tx ring for the offload queue if the card is not
offload capable.

- Slightly better freelist size calculation.

- Fix nmbjumbo4 typo, remove unneeded global variables.

r206109:
Increase response queue size to avoid starvation, add a counter
to track it when it does occur.

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Merge svn+ssh://svn.freebsd.org/base/head@206063

Multiple fixes related to queue set sizing and resources:

- Only the tunnelq (TXQ_ETH) requires a buf_ring, an ifq, and the watchdog/timer
callouts. Do not allocate these for the other tx queues.

Multiple fixes related to queue set sizing and resources:

- Only the tunnelq (TXQ_ETH) requires a buf_ring, an ifq, and the watchdog/timer
callouts. Do not allocate these for the other tx queues.

- Use 16k jumbo clusters only on offload capable cards by default.

- Do not allocate a full tx ring for the offload queue if the card is not
offload capable.

- Slightly better freelist size calculation.

- Fix nmbjumbo4 typo, remove unneeded global variables.

MFC after: 3 days

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