Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove the commented out code I just committed. If we need it, I'll
bring it back uncommented our, or rewrite it.

Add support from GE Intelligent Platform Cavium Octeon boards. Add
options OCTEON_VENDOR_GEFES to enable support for these boards, to
match changes that GE publishes to the Octeon Simple Executive. Since
board types overlap with other boards, it is unlikely that we will
properly boot on other Octeon boards with OCTEON_VENDOR_GEFES enabled.
Tested extensively on the WANIC 6354, but I retained support for all
the other models. Some features need changes in the base kernel, and
those are in progress.

Remove some files not used by the FreeBSD kernel which have been adding quite
a bit of bloat to the kernel source tree's size.

Disable the Simple Executive's error decoding/reporting code.

Merge the Cavium Octeon SDK 2.3.0 Simple Executive code and update FreeBSD to
make use of it where possible.

This primarily brings in support for newer hardware, and FreeBSD is not yet
able to support the abundance of IRQs on new hardware and many features in the
Ethernet driver.

Because of the changes to IRQs in the Simple Executive, we have to maintain our
own list of Octeon IRQs now, which probably can be pared-down and be specific
to the CIU interrupt unit soon, and when other interrupt mechanisms are added
they can maintain their own definitions.

Remove unmasking of interrupts from within the UART device now that the
function used is no longer present in the Simple Executive. The unmasking
seems to have been gratuitous as this is more properly handled by the buses
above the UART device, and seems to work on that basis.

- Do not enumerate PCIe bus on CN56XX Pass 1 devices to avoid hard hang.
There is known issue with this hardware.

Submitted by: Andrew Duane <aduane@juniper.net>

o) Add support for the Lanner MR-321X/MR-325, which is just a modified MR-320.
o) On the Lanner MR-730, disable PCIe lane swap, per vendor.

Merge Cavium Octeon SDK 2.0 Simple Executive; this brings some fixes and new
facilities as well as support for the Octeon 2 family of SoCs.

XXX Note that with our antediluvian assembler, we can't support some Octeon 2
instructions and fall back to using the old ones instead.

Import the Cavium Simple Executive from the Cavium Octeon SDK. The Simple
Executive is a library that can be used by standalone applications and kernels
to abstract access to Octeon SoC and board-specific hardware and facilities.
The FreeBSD port to Octeon will be updated to use this where possible.

Initial import of Cavium Networks Octeon Simple Executive, SDK version 1.9.0.