Finish process of moving the LinuxKPI module into the default kernel build.

- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
  its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
  adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
  COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
  LinuxKPI into the kernel. This was done to keep the build rules for
  the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
  Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.

Reviewed by:	np @ (cxgb and cxgbe related changes only)
Sponsored by:	Mellanox Technologies

3 files changed, 22 insertions, 13 deletions

diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index c1210e2..1afefdb 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -359,6 +359,9 @@ options 	COMPAT_FREEBSD9
 # Enable FreeBSD10 compatibility syscalls
 options 	COMPAT_FREEBSD10
 
+# Enable Linux Kernel Programming Interface
+options 	COMPAT_LINUXKPI
+
 #
 # These three options provide support for System V Interface
 # Definition-style interprocess communication, in the form of shared
diff --git a/sys/conf/files b/sys/conf/files
index 9a6dec4..c07cf40 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -2574,7 +2574,6 @@ dev/usb/storage/ustorage_fs.c	optional usfs
 # USB core
 #
 dev/usb/usb_busdma.c		optional usb
-dev/usb/usb_compat_linux.c	optional usb
 dev/usb/usb_core.c		optional usb
 dev/usb/usb_debug.c		optional usb
 dev/usb/usb_dev.c		optional usb
@@ -3796,17 +3795,20 @@ nlm/nlm_prot_svc.c		optional nfslockd | nfsd
 nlm/nlm_prot_xdr.c		optional nfslockd | nfsd
 nlm/sm_inter_xdr.c		optional nfslockd | nfsd
 
-# Linux Kernel Compatibility API
-ofed/include/linux/linux_kmod.c			optional ofed | compat_linuxkpi \
-	no-depend compile-with "${OFED_C}"
-ofed/include/linux/linux_compat.c		optional ofed | compat_linuxkpi \
-	no-depend compile-with "${OFED_C}"
-ofed/include/linux/linux_pci.c			optional ofed | compat_linuxkpi \
-	no-depend compile-with "${OFED_C}"
-ofed/include/linux/linux_idr.c			optional ofed | compat_linuxkpi \
-	no-depend compile-with "${OFED_C}"
-ofed/include/linux/linux_radix.c		optional ofed | compat_linuxkpi \
-	no-depend compile-with "${OFED_C}"
+# Linux Kernel Programming Interface
+compat/linuxkpi/common/src/linux_kmod.c		optional compat_linuxkpi \
+	no-depend compile-with "${LINUXKPI_C}"
+compat/linuxkpi/common/src/linux_compat.c	optional compat_linuxkpi \
+	no-depend compile-with "${LINUXKPI_C}"
+compat/linuxkpi/common/src/linux_pci.c		optional compat_linuxkpi pci \
+	no-depend compile-with "${LINUXKPI_C}"
+compat/linuxkpi/common/src/linux_idr.c		optional compat_linuxkpi \
+	no-depend compile-with "${LINUXKPI_C}"
+compat/linuxkpi/common/src/linux_radix.c	optional compat_linuxkpi \
+	no-depend compile-with "${LINUXKPI_C}"
+compat/linuxkpi/common/src/linux_usb.c		optional compat_linuxkpi usb \
+	no-depend compile-with "${LINUXKPI_C}"
+
 # OpenFabrics Enterprise Distribution (Infiniband)
 ofed/drivers/infiniband/core/addr.c		optional ofed		\
 	no-depend							\
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index 3783881..4328749 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -177,9 +177,13 @@ NORMAL_CTFCONVERT=	@:
 
 NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 
+# Linux Kernel Programming Interface C-flags
+LINUXKPI_INCLUDES=	-I$S/compat/linuxkpi/common/include
+LINUXKPI_C=		${NORMAL_C} ${LINUXKPI_INCLUDES}
+
 # Infiniband C flags.  Correct include paths and omit errors that linux
 # does not honor.
-OFEDINCLUDES=	-I$S/ofed/include/
+OFEDINCLUDES=	-I$S/ofed/include ${LINUXKPI_INCLUDES}
 OFEDNOERR=	-Wno-cast-qual -Wno-pointer-arith
 OFEDCFLAGS=	${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
 OFED_C_NOIMP=	${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}