sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

SPDX: license IDs for some ISC-related files.

MFC

IFC @ r225592

sys/dev/bvm/bvm_console.c - move up to the new alt-break order.

Update the TSF and next-TBTT methods to work for the AR5416 and later NICs.
This is another commit in a series of TDMA support fixes for the 11n NICs.

* Move ath_hal_getnexttbtt() into the HAL; writ

Update the TSF and next-TBTT methods to work for the AR5416 and later NICs.
This is another commit in a series of TDMA support fixes for the 11n NICs.

* Move ath_hal_getnexttbtt() into the HAL; write methods for it.
This returns a timer value in TSF, rather than TU.

* Move ath_hal_getcca() and ath_hal_setcca() into the HAL too, where they
likely now belong.

* Create a new HAL capability: HAL_CAP_LONG_RXDESC_TSF.
The pre-11n NICs write 15 bit TSF snapshots into the RX descriptor;
the AR5416 and later write 32 bit TSF snapshots into the RX descriptor.
* Use the new capability to choose between 15 and 31 bit TSF adjustment
functions in ath_extend_tsf().

* Write ar5416GetTsf64() and ar5416SetTsf64() methods.
ar5416GetTsf64() tries to compensate for TSF changes at the 32 bit boundary.

According to yin, this fixes the TDMA beaconing on 11n chipsets and TDMA
stations can now associate/talk, but there are still issues with traffic
stability which need to be investigated.

The ath_hal_extendtsf() function is also used in RX packet timestamping;
this may improve adhoc mode on the 11n chipsets. It also will affect the
timestamps seen in radiotap frames.

Submitted by: Kang Yin Su <cantona@cantona.net>
Approved by: re (kib)

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Integrate from Head into ZFSD feature branch as of revision r224141.

IFC @ r223696 to pick up dfr's userboot

MFC

Break out most of the HAL related tweaks into a per-HAL instance,
rather than global variables.

This specifically allows for debugging to be enabled per-NIC, rather
than globally.

Since the ath dri

Break out most of the HAL related tweaks into a per-HAL instance,
rather than global variables.

This specifically allows for debugging to be enabled per-NIC, rather
than globally.

Since the ath driver doesn't know about AH_DEBUG, and to keep the ABI
consistent regardless of whether AH_DEBUG is enabled or not, enable the
debug parameter always but only conditionally compile in the debug
methods if needed.

The ALQ support is currently still global pending some brainstorming.

Submitted by: ssgriffonuser@gmail.com
Reviewed by: adrian, bschmidt

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MFC r204644:
Replace Id keyword with FreeBSD keyword and set the svn props correctly.
No functional change.

Approved by: re (bz)

Update to current version of head.

Replace Id keyword with FreeBSD keyword and set the svn props correctly.
No functional change.

integrate from head@185615

import ath hal

Replace Id keyword with FreeBSD keyword and set the svn props correctly.
No functional change.

import ath hal