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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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 BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

qlxgbe: purge EOL release compatibility

Drop code that differentiated between FreeBSD 10 and 11.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/603
Differential Revision: https://reviews.freebsd.org/D35560

qlxgb/qlxgbe/qlxge: Fix build without INET and/or without INET6.

This is in preparation for adding these drivers to amd64 NOTES.

qlxgbe: clean up empty lines in .c and .h files

1. Added support to offline a port if is error recovery on successful.
2. Sysctls to enable/disable driver_state_dump and error_recovery.
3. Sysctl to control the delay between hw/fw reinitialization and
restarting the fastpath.
4. Stop periodic stats retrieval if interface has IFF_DRV_RUNNING flag off.
5. Print contents of PEG_HALT_STATUS1 and PEG_HALT_STATUS2 on heartbeat
failure.
6. Speed up slowpath shutdown during error recovery.
7. link_state update using atomic_store.
8. Added timestamp information on driver state and minidump captures.
9. Added support for Slowpath event logging
10.Added additional failure injection types to simulate failures.

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.

Upgrade FW to 5.4.66
sysctls to display stats, stats polled every 2 seconds
Modify QLA_LOCK()/QLA_UNLOCK() to not sleep after acquiring mtx_lock
Add support to turn OFF/ON error recovery following heartbeat failure for
debug purposes.
Set default max values to 32 Tx/Rx/SDS rings

MFC after:5 days

Cleanup QLA_LOCK/QLA_UNLOCK macros
remove unused QLA_TX_LOCK/QLA_TX_UNLOCK macros
format qla_error_recovery()

MFC after:3 days

Added support for if_transmit and if_qflush
Removed if_start
updated version to 3.10.33

MFC after:5 days

Updated Copyright information
Added support for the following:
- iSCSI TLV (requires 64 Tx and 32 Rx rings
- 9K receive buffers for jumbo frames (feature may be enabled/disabled)
- builtin firmware, bootloader and minidump template
- quick stats
- async event handling for SFP insertion/removal and DCBX changes
- Configuring DCBX and interrupt coalescing parameters

Include necessary headers that now are available due to pollution
via if_var.h.

Sponsored by: Netflix
Sponsored by: Nginx, Inc.

Add Qlogic 10Gigabit Ethernet & CNA Adapter Driver Version 3.10.10 for
QLogic 8300 Series Adapters

Submitted by: David C Somayajulu (davidcs@freebsd.org) QLogic Corporation
Approved by: George Neville-Neil (gnn@freebsd.org)