MFC r312885

sfxge(4): compact the first hot part of RxQ control

buf_base_id is used on RxQ control operations only and not used on
datapath.

Sponsored by: Solarflare Communications, Inc.

MFC r312884

sfxge(4): fix RxQ structure layout vs usage on datapath

Recent changes in the pseudo header accessor prototypes start to
use common code RxQ handle on datapath. The handle was located
at the end of the structure with members not used on datapath.

Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D9359

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

sfxge(4): move definition of the SW events to sfxge.h

Tx flush done event is defined and Rx-specific header is not a good
place for it.

Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days

sfxge(4): cleanup: update copyright to 2016

Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D6509

sfxge: add 7xxx NICs family support

Support 7xxx adapters including firmware-assisted TSO and VLAN tagging:

- Solarflare Flareon Ultra 7000 series 10/40G adapters:
- Solarflare SFN7042Q QSFP+ Server Adapter
- Solarflare SFN7142Q QSFP+ Server Adapter

- Solarflare Flareon Ultra 7000 series 10G adapters:
- Solarflare SFN7022F SFP+ Server Adapter
- Solarflare SFN7122F SFP+ Server Adapter
- Solarflare SFN7322F Precision Time Synchronization Server Adapter

- Solarflare Flareon 7000 series 10G adapters:
- Solarflare SFN7002F SFP+ Server Adapter

Support utilities to configure adapters and update firmware.

The work is done by Solarflare developers
(Andy Moreton, Andrew Lee and many others),
Artem V. Andreev <Artem.Andreev at oktetlabs.ru> and me.

Sponsored by: Solarflare Communications, Inc.
MFC after: 2 weeks
Causually read by: gnn
Differential Revision: https://reviews.freebsd.org/D2618

Unbreak 'make depend' with sfxge by removing debugging code activated in the
INET || INET6 case

X-MFC with: r279398
Pointyhat to: arybchik

sfxge: compile out LRO if kernel is compiled without IPv4 and IPv6

Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)

Make size of Tx and Rx rings configurable

Required size of event queue is calculated now.

Submitted by: Andrew Rybchenko <arybchenko at solarflare.com>
Sponsored by: Solarflare Communications, Inc.

cleanup: code style fixes

Remove trailing whitespaces and tabs.
Enclose value in return statements in parentheses.
Use tabs after #define.
Do not skip comparison with 0/NULL in boolean expressions.

Submitted by: Andrew Rybchenko <arybchenko at solarflare.com>
Sponsored by: Solarflare Communications, Inc.

Add the sfxge(4) device driver, providing support for 10Gb Ethernet adapters
based on Solarflare SFC9000 family controllers. The driver supports jumbo
frames, transmit/receive checksum offload, TCP Segmentation Offload (TSO),
Large Receive Offload (LRO), VLAN checksum offload, VLAN TSO, and Receive Side
Scaling (RSS) using MSI-X interrupts.

This work was sponsored by Solarflare Communications, Inc.

My sincere thanks to Ben Hutchings for doing a lot of the hard work!

Sponsored by: Solarflare Communications, Inc.
MFC after: 3 weeks