Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

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 for printf() compile warning when fast_reg.length is 64-bit.
Changing fast_reg.length to 64 bits is planned in the future. Krping
uses 32-bit lengths internally.

Sponsored by: Mellanox Technologies
MFC after: 1 week

Send krping output to the log instead of the tty, as is done upstream.

Reviewed by: hselasky@
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D5931

Add fastreg support to krping (ported from upstream).

Submitted by: Krishnamraju Eraparaju @ Chelsio
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D5777

krping wasn't designed to take more than one client. Fail any connect
requests if cb->state is not IDLE.

Submitted by: Krishnamraju Eraparaju @ Chelsio
Reviewed by: Steve Wise @ Open Grid Computing
Sponsored by: Chelsio Communications

Fix crash in krping when run as a client due to NULL pointer access.
Initialize pointer in question which is used only when fast registers
mode is selected.

Sponsored by: Mellanox Technologies
MFC after: 1 week

Have krping use IB_ACCESS_LOCAL_WRITE because it's required for remote
write or remote atomic operations.

Submitted by: Krishnamraju Eraparaju @ Chelsio

Rename linuxapi[.ko] into linuxkpi[.ko], to reflect that it is a
kernel programming interface module, KPI, to avoid confusion with the
existing Linux userspace binary compatibility shims. Bump the
FreeBSD_version number.

Reviewed by: np @
Suggested by: dumbbell @
Sponsored by: Mellanox Technologies

Update the infiniband stack to Mellanox's OFED version 2.1.

Highlights:
- Multiple verbs API updates
- Support for RoCE, RDMA over ethernet

All hardware drivers depending on the common infiniband stack has been
updated aswell.

Discussed with: np @
Sponsored by: Mellanox Technologies
MFC after: 1 month

Add missing linuxapi module dependencies and always use the FreeBSD
"MODULE_VERSION" macro definition. Remove the redefinition of the
"MODULE_VERSION" macro from the Linux kernel compatibility API.

MFC after: 1 month
Reported by: np@
Sponsored by: Mellanox Technologies

krping: In verbose mode print only first 128 bytes of krping data.

Submitted by: Hariprasad at Chelsio dot com.
Sponsored by: Chelsio Communications

Update the OFED Linux compatibility layer and
Mellanox hardware driver(s):

- Properly name an inclusion guard
- Fix compile warnings regarding unsigned enums
- Add two new sysctl nodes
- Remove all empty linux header files
- Make an error printout more verbose
- Use "mod_delayed_work()" instead of
cancelling and starting a timeout.
- Implement more Linux scatterlist
functions.

MFC after: 3 days
Sponsored by: Mellanox Technologies

- Update the OFED Linux Emulation layer as a preparation for a
hardware driver update from Mellanox Technologies.
- Remove empty files from the OFED Linux Emulation layer.
- Fix compile warnings related to printf() and the "%lld" and "%llx"
format specifiers.
- Add some missing 2-clause BSD copyrights.
- Add "Mellanox Technologies, Ltd." to list of copyright holders.
- Add some new compatibility files.
- Fix order of uninit in the mlx4ib module to avoid crash at unload
using the new module_exit_order() function.

MFC after: 1 week
Sponsored by: Mellanox Technologies

Update krping to the latest upstream code. Move all the FreeBSD
specific parts to krping_dev.c, which leaves the other files as
close to their upstream versions as possible.

Assorted fixes to krping. Disconnect the rest of sys/contrib/rdma from
the build while here. sys/ofed has more recent RDMA code and should be
used instead. We should probably move krping out of sys/contrib/rdma
and get rid of the rest of it.

Obtained from: Chelsio

- Updated TOE support in the kernel.

- Stateful TCP offload drivers for Terminator 3 and 4 (T3 and T4) ASICs.
These are available as t3_tom and t4_tom modules that augment cxgb(4)
and cxgbe(4) respectively. The cxgb/cxgbe drivers continue to work as
usual with or without these extra features.

- iWARP driver for Terminator 3 ASIC (kernel verbs). T4 iWARP in the
works and will follow soon.

Build-tested with make universe.

30s overview
============
What interfaces support TCP offload? Look for TOE4 and/or TOE6 in the
capabilities of an interface:
# ifconfig -m | grep TOE

Enable/disable TCP offload on an interface (just like any other ifnet
capability):
# ifconfig cxgbe0 toe
# ifconfig cxgbe0 -toe

Which connections are offloaded? Look for toe4 and/or toe6 in the
output of netstat and sockstat:
# netstat -np tcp | grep toe
# sockstat -46c | grep toe

Reviewed by: bz, gnn
Sponsored by: Chelsio communications.
MFC after: ~3 months (after 9.1, and after ensuring MFC is feasible)

Remove the explicit definition of inet_aton() as it was introduced as a
general function in r199208.

Reported by: np
Sponsored by: Sandvine Incorporated
MFC: 1 week

fix build

Import basic common and iwarp kernel RDMA infrastructure.

Supported by: Chelsio Inc.