- Merge esp_sbus.c rev. 1.31 from NetBSD: nuke trailing whitespace.
Rev. 1.28 and 1.30 were already merged, 1.29 is not relevant for FreeBSD.
- Remove unused headers.
- Use BUS_PROBE_DEFAULT.
- Use __func__ instead of hardcoded function names in error messages.
- Correct some comments.
- Correct some function declarations to match their prototypes.
- Some style(9) fixes (don't use function calls in initializers; indentation).
- Zero the allocated structs to avoid problems with uninitialized members.
- Remove the ifdef'ed out SBus interrupt priority code and the hook for
ncr53c9x_reset(), remove the unused SBus interrupt priority member from
esp_softc. On FreeBSD setting the SBus interrupt priority is entirely done
in sbus(4) and the reset function isn't even really used in NetBSD.
- s,dma,DMA, in comments.
- Make the code fit in 80 columns.
set the interrupt handler to be INTR_MPSAFE now that xpt_done() can be
called without Giant. Giant is still on the top half of the driver and
the timeout handlers.
doesn't do this is beyond me, but that will be investigated later. This
results in programming the chip with the correct frequency, which in turn
allows devices to negotiate up to the full 20MB/s.
subset ("compatible", "device_type", "model" and "name") of the standard
properties in drivers for devices on Open Firmware supported busses. The
standard properties "reg", "interrupts" und "address" are not covered by
this interface because they are only of interest in the respective bridge
code. There's a remaining standard property "status" which is unclear how
to support properly but which also isn't used in FreeBSD at present.
This ofw_bus kobj-interface allows to replace the various (ebus_get_node(),
ofw_pci_get_node(), etc.) and partially inconsistent (central_get_type()
vs. sbus_get_device_type(), etc.) existing IVAR ones with a common one.
This in turn allows to simplify and remove code-duplication in drivers for
devices that can hang off of more than one OFW supported bus.
- Convert the sparc64 Central, EBus, FHC, PCI and SBus bus drivers and the
drivers for their children to use the ofw_bus kobj-interface. The IVAR-
interfaces of the Central, EBus and FHC are entirely replaced by this. The
PCI bus driver used its own kobj-interface and now also uses the ofw_bus
one. The IVARs special to the SBus, e.g. for retrieving the burst size,
remain.
Beware: this causes an ABI-breakage for modules of drivers which used the
IVAR-interfaces, i.e. esp(4), hme(4), isp(4) and uart(4), which need to be
recompiled.
The style-inconsistencies introduced in some of the bus drivers will be
fixed by tmm@ in a generic clean-up of the respective drivers later (he
requested to add the changes in the "new" style).
- Convert the powerpc MacIO bus driver and the drivers for its children to
use the ofw_bus kobj-interface. This invloves removing the IVARs related
to the "reg" property which were unused and a leftover from the NetBSD
origini of the code. There's no ABI-breakage caused by this because none
of these driver are currently built as modules.
There are other powerpc bus drivers which can be converted to the ofw_bus
kobj-interface, e.g. the PCI bus driver, which should be done together
with converting powerpc to use the OFW PCI code from sparc64.
- Make the SBus and FHC front-end of zs(4) and the sparc64 eeprom(4) take
advantage of the ofw_bus kobj-interface and simplify them a bit.
Reviewed by: grehan, tmm
Approved by: re (scottl)
Discussed with: tmm
Tested with: Sun AX1105, AXe, Ultra 2, Ultra 60; PPC cross-build on i386
its primary use is for the FEPS/FAS366 SCSI found in Sun Ultra 1e and 2
machines. Once the pci front-end is ported, this driver can replace the
amd(4) driver.
The code as-is is fairly stable. I've disabled tagged-queueing until I can
figure out a corruption bug related to it. I'm importing it now so that
people with these machines can (finally) stop netbooting and report bugs
before 5.3.
