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

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Convert iflib(4) and iflib-based drivers to the DrvAPI

Summary:
Convert iflib(4) and the following drivers:
* axgbe
* em
* ice
* ixl
* vmxnet

Sponsored by: Juniper Networks, Inc.
Reviewed by: kbowling, #iflib
Differential Revision: https://reviews.freebsd.org/D37768

10Gigabit Ethernet driver for AMD SoC

This patch has the driver for 10Gigabit Ethernet controller in AMD
SoC. This driver is written compatible to the Iflib framework. The
existing driver is for the old version of hardware. The submitted
driver here is for the recent versions of the hardware where the Ethernet
controller is PCI-E based.

Submitted by: Rajesh Kumar <rajesh1.kumar@amd.com>
MFC after: 1 month
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D25793

Do pass removing some write-only variables from the kernel.

This reduces noise when kernel is compiled by newer GCC versions,
such as one used by external toolchain ports.

Reviewed by: kib, andrew(sys/arm and sys/arm64), emaste(partial), erj(partial)
Reviewed by: jhb (sys/dev/pci/* sys/kern/vfs_aio.c and sys/kern/kern_synch.c)
Differential Revision: https://reviews.freebsd.org/D10385

Port the Linux AMX 10G network driver to FreeBSD as axgbe. It is unlikely
we will import a newer version of the Linux code so the linuxkpi was not
used.

This is still missing 10G support, and multicast has not been tested.

Reviewed by: gnn
Obtained from: ABT Systems Ltd
Sponsored by: SoftIron Inc
Differential Revision: https://reviews.freebsd.org/D8549

Import the AMD 10G ethernet driver for the AMD Opteron A1100.

This is from Linux git as of 5eb4dce3b3471ec9d1ea2945fa3d2bab4ac7e100

Obtained from: Linux
Sponsored by: SoftIron Inc