CVS log for src/sys/arch/arm/sunxi/sunxi_can.c

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Keyword substitution: kv
Default branch: MAIN

sunxi_can.c: fix build with MBUFTRACE

malloc -> kmem

Pull up following revision(s) (requested by bouyer in ticket #1533):

	sys/arch/arm/sunxi/sunxi_can.c: revision 1.10,1.11 (via patch)

Don't process RX if SUNXI_CAN_INT_DATA_OR is pending. Seems to fix occasional
RX stalls

Just skipping sunxi_can_rx_intr() if the DATA_OR flag is set isn't enough
to properly recover from overrrun in all case. So go the linux way and reset
the hardware.

Don't write SUNXI_CAN_INT_RX_FLAG to SUNXI_CAN_INT_REG, this could race
with hardware and clear the interrupt while there are new packets received.
SUNXI_CAN_INT_RX_FLAG clears automatically when all pending packets have been
read, so when no more packets are pending just read SUNXI_CAN_INT_REG again
and process other interrupts, if any (or RX if there are new packets pending).

With this change it seems I get overruns less often in my use case.

Just skipping sunxi_can_rx_intr() if the DATA_OR flag is set isn't enough
to properly recover from overrrun in all case. So go the linux way and reset
the hardware.

Don't write SUNXI_CAN_INT_RX_FLAG to SUNXI_CAN_INT_REG, this could race
with hardware and clear the interrupt while there are new packets received.
SUNXI_CAN_INT_RX_FLAG clears automatically when all pending packets have been
read, so when no more packets are pending just read SUNXI_CAN_INT_REG again
and process other interrupts, if any (or RX if there are new packets pending).
With this change it seems I get overruns less often in my use case.

Don't process RX if SUNXI_CAN_INT_DATA_OR is pending. Seems to fix occasional
RX stalls

Eliminate use of IFF_OACTIVE.

Sync with HEAD.

Rename of_match_compat_data() to of_compatible_match().  Similarly,
rename of_search_compatible() to of_compatible_lookup().

Standardize on of_compatible_match() for driver matching, and adapt
all call sites.

Use DEVICE_COMPAT_EOL.

Since we're using designated initialisers for compat data, we should
use a completely empty initializer for the sentinel.

Remove "struct of_compat_data" and replace its usage with
"struct device_compatible_entry"; they are ABI-compatible.

Fix several "loses const qualifier" bugs encountered during
this conversion.

use fdtbus_intr_establish_xname

Mostly merge changes from HEAD upto 20200411

Sync with head.

Adopt <net/if_stats.h>.

Pull up following revision(s) (requested by msaitoh in ticket #371):

	sys/dev/ic/i82586.c: revision 1.86
	sys/arch/arm/ep93xx/epe.c: revision 1.45
	sys/dev/pcmcia/if_cnw.c: revision 1.66
	sys/arch/mac68k/nubus/if_netdock_nubus.c: revision 1.31
	sys/arch/arm/sunxi/sunxi_can.c: revision 1.2
	sys/dev/qbus/if_il.c: revision 1.36
	sys/dev/pcmcia/if_ray.c: revision 1.95
	sys/dev/qbus/if_qt.c: revision 1.24

 if_ipackets is incremented in can_input(), so don't increment it in
sunxi_can_rx_intr to prevent double count. OK'd by bouyer@.

 if_percpuq(9) automatically increments if_ipackets, so don't increment it in
the driver itself to prevent double count.

 if_ipackets is incremented in can_input(), so don't increment it in
sunxi_can_rx_intr to prevent double count. OK'd by bouyer@.

Synch with HEAD

file sunxi_can.c was added on branch pgoyette-compat on 2018-03-15 09:12:02 +0000

fdt-ise the allwinner can and lradc drivers.