Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

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

Fix teardown of static DMA allocations in various NIC drivers:
- Add missing calls to bus_dmamap_unload() in et(4).
- Check the bus address against 0 to decide when to call
bus_dmamap_unload() instead of comparing the bus_dma map against NULL.
- Check the virtual address against NULL to decide when to call
bus_dmamem_free() instead of comparing the bus_dma map against NULL.
- Don't clear bus_dma map pointers to NULL for static allocations.
Instead, treat the value as completely opaque.
- Pass the correct virtual address to bus_dmamem_free() in wpi(4) instead
of trying to free a pointer to the virtual address.

Reviewed by: yongari

Update driver to version 10.0.664.0.

Many thanks to Emulex for their continued support of FreeBSD.

Submitted by: Venkata Duvvuru <VenkatKumar.Duvvuru Emulex Com>
MFC after: 3 day

Update driver with recent vendor improvements, most notably support
of Skyhawk adapters.

Many thanks to Emulex for their continued support of FreeBSD.

Submitted by: "Duvvuru,Venkat Kumar" <VenkatKumar.Duvvuru Emulex.Com>
MFC after: 1 day

Update driver to version 4.6.95.0.

Submitted by: "Duvvuru,Venkat Kumar" <VenkatKumar.Duvvuru Emulex.Com>
MFC after: 3 days

Patches from Naresh Raju Gottumukkala

- Feature: UMC - Universal Multi Channel support
- Bugfix: BE3 Firmware Flashing bug.
- Code improvements:
- Removed duplicate switch cases in the oce_ioctl routine.
- Made changes to mcc_async notifications routine(oce_mq_handler)

MFC after: 1 week

Add a driver for Emulex OneConnect ethernet cards (10 Gbit PCIe)
A manpage will come in a future commit.

Submitted by: Naresh Raju Gottumukkala (emulex)