spelling
feedback and ok tb@ jmc@ ok ratchov@

Explicitly disable BCM4331 chips present in 2011-2012 Apple Mac systems.

The Mac EFI firmware enables the wireless controller, but does not disable it,
so it continues to receive packets and signal interrupts. This
was originally seen as an interrupt storm that consumes about 50% of
CPU0 on affected machines. The issue was originally discovered in 2012 by
Matthew Garret with a partial fix in Grub, then Lukas Wunner added a fix for
the Linux kernel in 2016.

This piggy-backs on the most-related driver (bwi) for the purpose of detection
and mapping the control registers, but does not actually register the driver if
the affected chip is detected.

See this archived discussion for further analysis of the bug:
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1165355.html

ok kettenis stsp

Document bwi(4) interrupt error flags by using named constants
instead of magic numbers. Constants found in Linux brcmsmac.
ok claudio@

1 << 31 cleanup. Eitan Adler pointed out that there has been a
resurrection of the bad idiom in the tree.
sufficient review by miod, kettenis, tedu

- Add more LED support, like activity blinking (though just supporting
some devices yet).
- Calculate RX rate which can be used later in bpf_mtap().

Diff ported from DragonFlyBSD, tested by some.

Add some first LEDs support. Tested on my cardbus Linksys WPC54G Ver 3.

Diff ported from DragonFlyBSD

Shows the real size of a register in the hex define.

OK jsg@

Spacing.

Kill __BIT* macros.

Help and OK jsg@

Spacing run.

Initial port of Sepherosa Ziehau's DragonFlyBSD driver
for Broadcom AirForce wireless devices.

Not yet functional, things like DMA and firmware handling
haven't been converted yet.

ok mglocker@

Explicitly disable BCM4331 chips present in 2011-2012 Apple Mac systems.

The Mac EFI firmware enables the wireless controller, but does not disable it,
so it continues to receive packets and signal interrupts. This
was originally seen as an interrupt storm that consumes about 50% of
CPU0 on affected machines. The issue was originally discovered in 2012 by
Matthew Garret with a partial fix in Grub, then Lukas Wunner added a fix for
the Linux kernel in 2016.

This piggy-backs on the most-related driver (bwi) for the purpose of detection
and mapping the control registers, but does not actually register the driver if
the affected chip is detected.

See this archived discussion for further analysis of the bug:
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1165355.html

ok kettenis stsp

Document bwi(4) interrupt error flags by using named constants
instead of magic numbers. Constants found in Linux brcmsmac.
ok claudio@

1 << 31 cleanup. Eitan Adler pointed out that there has been a
resurrection of the bad idiom in the tree.
sufficient review by miod, kettenis, tedu

- Add more LED support, like activity blinking (though just supporting
some devices yet).
- Calculate RX rate which can be used later in bpf_mtap().

Diff ported from DragonFlyBSD, tested by some.

Add some first LEDs support. Tested on my cardbus Linksys WPC54G Ver 3.

Diff ported from DragonFlyBSD

Shows the real size of a register in the hex define.

OK jsg@

Spacing.

Kill __BIT* macros.

Help and OK jsg@

Spacing run.

Initial port of Sepherosa Ziehau's DragonFlyBSD driver
for Broadcom AirForce wireless devices.

Not yet functional, things like DMA and firmware handling
haven't been converted yet.

ok mglocker@

Document bwi(4) interrupt error flags by using named constants
instead of magic numbers. Constants found in Linux brcmsmac.
ok claudio@

1 << 31 cleanup. Eitan Adler pointed out that there has been a
resurrection of the bad idiom in the tree.
sufficient review by miod, kettenis, tedu

- Add more LED support, like activity blinking (though just supporting
some devices yet).
- Calculate RX rate which can be used later in bpf_mtap().

Diff ported from DragonFlyBSD, tested by some.

Add some first LEDs support. Tested on my cardbus Linksys WPC54G Ver 3.

Diff ported from DragonFlyBSD

Shows the real size of a register in the hex define.

OK jsg@

Spacing.

Kill __BIT* macros.

Help and OK jsg@

Spacing run.

Initial port of Sepherosa Ziehau's DragonFlyBSD driver
for Broadcom AirForce wireless devices.

Not yet functional, things like DMA and firmware handling
haven't been converted yet.

ok mglocker@