rtwn: add placeholder for the per-MACID rate report

Some chipsets (such as the RTL8188E) have firmware which supports
a second kind of TX report - instead of a per-packet TX report,
it can generate

rtwn: add placeholder for the per-MACID rate report

Some chipsets (such as the RTL8188E) have firmware which supports
a second kind of TX report - instead of a per-packet TX report,
it can generate a per-MACID summary of packet success/failure counters.

This would be helpful for those chips to cut back on the USB traffic
to get rate control feedback for the driver based rate control we're
currently using.

This is a no-op; it just gets the pieces in place for future work.

Differential Revision: https://reviews.freebsd.org/D47894

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Revert "Widen EPOCH(9) usage in PCI WLAN drivers."

This reverts commit b65f813c1ab99448278961c5ca80dc422b1eae29.
As a side effect this also seems to fix wtap which seems to have
lost the epoch over

Revert "Widen EPOCH(9) usage in PCI WLAN drivers."

This reverts commit b65f813c1ab99448278961c5ca80dc422b1eae29.
As a side effect this also seems to fix wtap which seems to have
lost the epoch over the input path in between.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days

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

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

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

Merge ^/head r357270 through r357349.

Widen EPOCH(9) usage in PCI WLAN drivers.

Make sure all occurrences of ieee80211_input_xxx() in sys/dev are
covered by a network epoch section. Do not depend on the interrupt
handler nor any taskque

Widen EPOCH(9) usage in PCI WLAN drivers.

Make sure all occurrences of ieee80211_input_xxx() in sys/dev are
covered by a network epoch section. Do not depend on the interrupt
handler nor any taskqueues being in a network epoch section.

This patch should unbreak the PCI WLAN drivers after r357004.

Pointy hat: glebius@
Sponsored by: Mellanox Technologies

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rtwn_pci(4): fix panic with INVARIANTS (due to inverted assertion logic)

MFC after: 4 days

rtwn_pci(4): add support for event-based Tx reports.

It will be used for RTL8188EE (and, probably, others).

MFC after: 4 days

rtwn_pci(4): use proper bus_dmamap_sync flags after Tx (sync with r342672)

MFC after: 4 days

MFhead@r320180

Merge ^/head r319973 through 321382.

Merge ^/head r320573 through r320970.

rtwn: add Rx descriptor structures for common code.

Remove any chipset specific usage of Rx descriptor structure / bits
from common code to prevent misuse of fields that may differ
between various c

rtwn: add Rx descriptor structures for common code.

Remove any chipset specific usage of Rx descriptor structure / bits
from common code to prevent misuse of fields that may differ
between various chipsets.

Checked with: RTL8821AU in STA mode.

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rtwn: drop unneeded (after r315583) code.

Tested with RTL8188EU, HOSTAP mode + RTL8821AU, STA mode
(fast-frames / A-MSDU).

MFhead@r313243

Merge ^/head r312309 through r312623.

rtwn: export more stats to net80211

Setup more ieee80211_rx_stats fields for received frames:
- pktflags:
* IEEE80211_RX_F_FAIL_FCSCRC;
* IEEE80211_RX_F_AMPDU;
* IEEE80211_RX_F_AMPDU_MORE;

rtwn: export more stats to net80211

Setup more ieee80211_rx_stats fields for received frames:
- pktflags:
* IEEE80211_RX_F_FAIL_FCSCRC;
* IEEE80211_RX_F_AMPDU;
* IEEE80211_RX_F_AMPDU_MORE;
* IEEE80211_RX_F_SHORTGI;
- rate flags (CCK, OFDM, HT);
- width;
- phytype;
- rate;
- rx_tsf;
- rssi;
- nf;
- ieee, freq (RTL8188EU only, when ht40 support is disabled).

Tested with:
- RTL8188CE, RTL8188EU, RTL8821AU (STA / AP modes, i386)
- (by kevlo) RTL8188EU and RTL8812AU (amd64)

Reviewed by: adrian (previous version), kevlo
Differential Revision: https://reviews.freebsd.org/D9021

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Merge ^/head r308491 through r308841.

rtwn: enable 11n support for RTL8188CE.

- Increase Rx buffer size from MCLBYTES to MJUMPAGESIZE.
- Provide an additional defragmentation routine for frames larger
than MCLBYTES; that is required by

rtwn: enable 11n support for RTL8188CE.

- Increase Rx buffer size from MCLBYTES to MJUMPAGESIZE.
- Provide an additional defragmentation routine for frames larger
than MCLBYTES; that is required by A-MSDU / Atheros Fast-Frames
support to work with current Tx path implementation.

Enabled features list for RTL8188CE:
- Atheros Fast-Frames;
- A-MPDU (Tx / Rx);
- A-MSDU (Tx / Rx; 4k only);
- Short Guard Interval.

Tested with:
- RTL8188CE (STA+AP) + RTL8821AU (STA).
- RTL8188CE (STA) + RTL8188CUS (AP).

Relnotes: yes

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Merge ^/head r308227 through r308490.

rtwn_pci: omit tx_done() stage if device is not running.
rtwn_usb: drain USB transfers during device shutdown; this fixes possible
panic with 'options IEEE80211_SUPPORT_SUPERG' during device detach.

rtwn_pci: omit tx_done() stage if device is not running.
rtwn_usb: drain USB transfers during device shutdown; this fixes possible
panic with 'options IEEE80211_SUPPORT_SUPERG' during device detach.

Tested with RTL8188CE, STA mode.

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Merge ^/head r307383 through r307735.

rtwn(4), urtwn(4): merge common code, add support for 11ac devices.

All devices:
- add support for rate adaptation via ieee80211_amrr(9);
- use short preamble for transmitted frames when needed;
- m

rtwn(4), urtwn(4): merge common code, add support for 11ac devices.

All devices:
- add support for rate adaptation via ieee80211_amrr(9);
- use short preamble for transmitted frames when needed;
- multi-bss support:
* for RTL8821AU: 2 VAPs at the same time;
* other: 1 any VAP + 1 sta VAP.
RTL8188CE:
- fix IQ calibration bug (reason of significant speed degradation);
- add h/w crypto acceleration support.
USB:
- A-MPDU Tx support;
- short GI support;
Other:
- add support for RTL8812AU / RTL8821AU chipsets
(a/b/g/n only; no ac yet);
- split merged code into subparts:
* bus glue (usb/*, pci/*, rtl*/usb/*, rtl*/pci/*)
* common (if_rtwn*)
* chip-specific (rtl*/*)
- various other bugfixes.

Due to code reorganization, module names / requirements were changed too:
urtwn urtwnfw -> rtwn rtwn_usb rtwnfw
rtwn rtwnfw -> rtwn rtwn_pci rtwnfw

Tested with RTL8188CE, RTL8188CUS, RTL8188EU and RTL8821AU.

Tested by: kevlo, garga,
Peter Garshtja <peter.garshtja@ambient-md.com>,
Kevin McAleavey <kevin.mcaleavey@knosproject.com>,
Ilias-Dimitrios Vrachnis <id@vrachnis.com>,
<otacilio.neto@bsd.com.br>
Relnotes: yes

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