cxgbe(4): Use the correct size for the CIM LA on the T6.

The logic analyzer in the T6 CIM block has a different capture size than
previous chips.

MFC after: 1 week
Sponsored by: Chelsio Communicati

cxgbe(4): Use the correct size for the CIM LA on the T6.

The logic analyzer in the T6 CIM block has a different capture size than
previous chips.

MFC after: 1 week
Sponsored by: Chelsio Communications

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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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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cxgbe(4): Use the correct filter width for T5+.

T5 and above have extra bits for the optional filter fields. This is a
correctness issue and not just a waste because a filter mode valid on a
T4 (36

cxgbe(4): Use the correct filter width for T5+.

T5 and above have extra bits for the optional filter fields. This is a
correctness issue and not just a waste because a filter mode valid on a
T4 (36b) may not be valid on a T5+ (40b).

MFC after: 2 weeks
Sponsored by: Chelsio Communications

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MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

cxgbe(4): Some updates to the common code.

Obtained from: Chelsio Communications
MFC after: 1 week
Sponsored by: Chelsio Communications

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@r322451

Merge ^/head r321383 through r322397.

MFhead@r322021

cxgbe(4): Initial import of the "collect" component of Chelsio unified
debug (cudbg) code, hooked up to the main driver via an ioctl.

The ioctl can be used to collect the chip's internal state in a

cxgbe(4): Initial import of the "collect" component of Chelsio unified
debug (cudbg) code, hooked up to the main driver via an ioctl.

The ioctl can be used to collect the chip's internal state in a
compressed dump file. These dumps can be decoded with the "view"
component of cudbg.

Obtained from: Chelsio Communications
MFC after: 2 months
Sponsored by: Chelsio Communications

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MFH

Sponsored by: The FreeBSD Foundation

Merge ^/head r296369 through r296409.

cxgbe(4): Very basic T6 awareness. This is part of ongoing work to
update to the latest internal shared code.

- Add a chip_params structure to keep track of hardware constants for
all generations

cxgbe(4): Very basic T6 awareness. This is part of ongoing work to
update to the latest internal shared code.

- Add a chip_params structure to keep track of hardware constants for
all generations of Terminators handled by cxgbe.
- Update t4_hw_pci_read_cfg4 to work with T6.
- Update the hardware debug sysctls (hidden within dev.<tNnex>.<n>.misc.*) to
work with T6. Most of the changes are in the decoders for the CIM
logic analyzer and the MPS TCAM.
- Acquire the regwin lock around indirect register accesses.

Obtained from: Chelsio Communications
Sponsored by: Chelsio Communications

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MFH

Sponsored by: The FreeBSD Foundation

Merge ^/head r295601 through r295844.

cxgbe: catch up with the latest hardware-related definitions.

Obtained from: Chelsio Communications
Sponsored by: Chelsio Communications

MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

Merge head up to r263906.

cxgbe(4): significant rx rework.

- More flexible cluster size selection, including the ability to fall
back to a safe cluster size (PAGE_SIZE from zone_jumbop by default) in
case an allocation o

cxgbe(4): significant rx rework.

- More flexible cluster size selection, including the ability to fall
back to a safe cluster size (PAGE_SIZE from zone_jumbop by default) in
case an allocation of a larger size fails.
- A single get_fl_payload() function that assembles the payload into an
mbuf chain for any kind of freelist. This replaces two variants: one
for freelists with buffer packing enabled and another for those without.
- Buffer packing with any sized cluster. It was limited to 4K clusters
only before this change.
- Enable buffer packing for TOE rx queues as well.
- Statistics and tunables to go with all these changes. The driver's
man page will be updated separately.

MFC after: 5 weeks

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Merge head r233826 through r256722.

IFC @256277

Approved by: ken (mentor)

Merge from head