sys: Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

e1000: Consistently use FALLTHROUGH

Approved by: imp
MFC after: 1 week

e1000: Catch up commit with DPDK

Various syncs with the e1000 shared code from DPDK:
"cid-gigabit.2020.06.05.tar.gz released by ND"

Approved by: imp
Obtained from: DPDK
MFC after: 1 week

e1000: fix minor issues and improve code style

Fix typo in piece of code of NVM access for SPT.
And cleans up the remaining instances in the shared code
where it was not adhering to the Linux code standard.
Wrong description was found in the mentioned file, so fix them.
Remove shadowing variable declarations.

Relating to operands in bitwise operations having different sizes.
Unreachable code since *clock_in_i2c_* always return success.
Don't return unused s32 and don't check for constants.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Signed-off-by: Robert Konklewski <robertx.konklewski@intel.com>
Signed-off-by: Doug Dziggel <douglas.a.dziggel@intel.com>
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>

Approved by: imp
Obtained from: DPDK (b8592c89c8fbc871d22313dcac0b86c89a7d5a62)
MFC after: 1 week

e1000: add function parameter descriptions

Add function parameter descriptions to address gcc 7 warnings.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>

Approved by: imp
Obtained from: DPDK (1bf35d435c9764e83be76042fa6489dd127b6c40)
MFC after: 1 week

e1000: support flashless i211 PBA

Add support to print PBA when using flashless.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>

Approved by: imp
Obtained from: DPDK (d3c41d90dfd5b39dec14c74cf53086f4e6634aed)
MFC after: 1 week

e1000: Update copyrights and readme

Copyrights in sync with "cid-gigabit.2020.06.05.tar.gz released by ND"
(from DPDK).

README from the latest em-7.7.8 on intel.com

Approved by: imp
MFC after: 1 week

e1000: Revert Update intel shared code

This reverts commit fc7682b17f3738573099b8b03f5628dcc8148adb.

This will be done incrementally to help with bisecting an issue in
later I21x devices (ich8lan).

PR: 258153
Approved by: imp
MFC after: 1 day

e1000: Update intel shared code

Sync the e1000 shared code with DPDK shared code
"cid-gigabit.2020.06.05.tar.gz released by ND"

Primary focus was on client platforms (ich8lan). More work remains here
but we need an Intel contact for client networking.

Reviewed by: grehan, Intel Networking (erj, earlier rev)
Obtained from: DPDK <http://git.dpdk.org/dpdk/tree/drivers/net/e1000/base>
MFC after: 1 week
Sponsored by: me
Differential Revision: https://reviews.freebsd.org/D31547

net: prefer ETHER_ADDR_LEN over ETH_ADDR_LEN

A couple of drivers and one place in if.c use ETH_ADDR_LEN, even though
net/ethernet.h provides an equivalent ETHER_ADDR_LEN definition.

Cleanup all of the locations which refer to ETH_ADDR_LEN to use the
standard ETHER_ADDR_LEN instead.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>

Submitted by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed by: erj@, jpaetzel@
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D21239

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Revert 287914,287762.

Reports of breakage on igb(4) have been narrowed down to 287762 and 287914
is an dependant change.

Submitted by: erj

Update em(4) with D3162 after testing further on hardware that failed
to attach with the last version of this commit. This commit fixes
attach failures on "ICH8" class devices via modifications to
e1000_init_nvm_params_ich8lan()

- Fix compiler warning in 80003es2lan.c
- Add return value handler for e1000_*_kmrn_reg_80003es2lan
- Fix usage of DEBUGOUT
- Remove unnecessary variable initializations.
- Removed unused variables (complaints from gcc).
- Edit defines in 82571.h.
- Add workaround for igb hw errata.
- Shared code changes for Skylake/I219 support.
- Remove unused OBFF and LTR functions.

Tested by some of the folks that reported breakage in previous incarnation.
Thanks to AllanJude, gjb, gnn, tijl for tempting fate with their machines.

Submitted by: erj@freebsd.org
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D3162

Revert last two commits to em(4)/igb(4). Reports are coming in that
this breaks initialization and reads from EEPROM on boot/driver load.

r287469 is being reverted as a dependancy on r287467

e1000: Shared code updates
- Fix compiler warning in 80003es2lan.c
- Add return value handler for e1000_*_kmrn_reg_80003es2lan
- Fix usage of DEBUGOUT
- Remove unnecessary variable initializations.
- Removed unused variables (complaints from gcc).
- Edit defines in 82571.h.
- Add workaround for igb hw errata.
- Shared code changes for Skylake/I219 support.
- Remove unused OBFF and LTR functions.

Differential Revision: https://reviews.freebsd.org/D3162
Submitted by: erj
MFC after: 1 month
Sponsored by: Intel Corporation

Bump all copywrite dates to 2015

Differential Revision: https://reviews.freebsd.org/D3160
Submitted by: erj
MFC after: 2 weeks
Sponsored by: Intel Corportation

Sync the E1000 shared code with Intel internal, this adds fixes,
and more importantly, new I218 adapter support to the em driver.

MFC after: 1 week

Refresh on the shared code for the E1000 drivers.
- bear with me, there are lots of white space changes, I would not
do them, but I am a mere consumer of this stuff and if these drivers
are to stay in shape they need to be taken.

em driver changes: support for the new i217/i218 interfaces

igb driver changes:
- TX mq start has a quick turnaround to the stack
- Link/media handling improvement
- When link status changes happen the current flow control state
will now be displayed.
- A few white space/style changes.

lem driver changes:
- the shared code uncovered a bogus write to the RLPML register
(which does not exist in this hardware) in the vlan code,this
is removed.

Part 1 of two parts, this is the shared code changes in
support of new deltas for both em and igb drivers.

Note that I am not able to track all the bugs fixed in
this code, I am a consumer of it as a component of my
core drivers. It is important to keep the FreeBSD drivers
up to date with it however.

One important note is there is a key fix for 82574 in this
update. Also, there are lots of white space changes, I am
not happy about them but have no control over it :)

Add support for the new I350 family of 1G interfaces.
- this also includes virtualization support on these devices

Correct some vlan issues we were seeing in test, jumbo frames on vlans
did not work correctly, this was all due to confused logic around HW
filters, the new code should now work for all uses.

Important fix: when mbuf resources are depeleted, it was possible to
completely empty the RX ring, and then the RX engine would stall
forever. This is fixed by a flag being set whenever the refresh code
fails due to an mbuf shortage, also the local timer now makes sure
that all queues get an interrupt when it runs, the interrupt code
will then always call rxeof, and in that routine the first thing done
is now to check the refresh flag and call refresh_mbufs. This has been
verified to fix this type 'hang'. Similar code will follow in the other
drivers.

Finally, sync up shared code for the I350 support.

Thanks to everyone that has been reporting issues, and helping in the
debug/test process!!

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Update code from Intel:
- Sync shared code with Intel internal
- New client chipset support added
- em driver - fixes to 82574, limit queues to 1 but use MSIX
- em driver - large changes in TX checksum offload and tso
code, thanks to yongari.
- some small changes for watchdog issues.
- igb driver - local timer watchdog code was missing locking
this and a couple other watchdog related fixes.
- bug in rx discard found by Andrew Boyer, check for null pointer

MFC: a week

This delta syncs the em and igb drivers with Intel,
adds header split and SCTP support into the igb driver.
Various small improvements and fixes.

MFC after: 2 weeks

This delta is primarily a fix for es2lan devices that
will sometimes fail to initialize problem due to a lock
contention with management hardware. However, in order to
deliver that fix it was necessary to take a shared code
update as a whole, and this required scattered changes in
the core code to be compatible.

The em driver now has VLAN HW support added as the igb
driver had previously.

MFC after: ASAP - in time for 7.1 RELEASE

- Import the HEAD csup code which is the basis for the cvsmode work.

Merge of the source for igb and em into dev/e1000, this
proved to be necessary to make the static drivers work
in EITHER/OR or BOTH configurations. Modules will still
build in sys/modules/igb or em as before.

This also updates the igb driver for support for the 82576
adapter, adds shared code fixes, and etc....

MFC after: ASAP