################################################################################
#
# Intel(R) 10GbE PCI Express Linux Network Driver
# Copyright(c) 1999 - 2017 Intel Corporation.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# The full GNU General Public License is included in this distribution in
# the file called "COPYING".
#
# Contact Information:
# Linux NICS <linux.nics@intel.com>
# e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
# Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
#
################################################################################

ifneq ($(KERNELRELEASE),)
# kbuild part of makefile
#
# Makefile for the Intel(R) 10GbE PCI Express Linux Network Driver
#

obj-$(CONFIG_IXGBE) += ixgbe.o

define ixgbe-y
    ixgbe_main.o
    ixgbe_api.o
    ixgbe_common.o
    ixgbe_dcb.o
    ixgbe_dcb_82598.o
    ixgbe_dcb_82599.o
    ixgbe_ethtool.o
    ixgbe_lib.o
    ixgbe_mbx.o
    ixgbe_sriov.o
    ixgbe_param.o
    ixgbe_phy.o
    ixgbe_procfs.o
    ixgbe_82598.o
    ixgbe_82599.o
    ixgbe_x540.o
    ixgbe_x550.o
endef
ixgbe-y := $(strip ${ixgbe-y})

ixgbe-${CONFIG_DCB} += ixgbe_dcb_nl.o

ixgbe-${CONFIG_DEBUG_FS} += ixgbe_debugfs.o

ixgbe-${CONFIG_FCOE:m=y} += ixgbe_fcoe.o

ixgbe-$(CONFIG_PTP_1588_CLOCK:m=y) += ixgbe_ptp.o

ixgbe-${CONFIG_SYSFS} += ixgbe_sysfs.o

ixgbe-y += kcompat.o

else    # ifneq($(KERNELRELEASE),)
# normal makefile

DRIVER := ixgbe

ifeq (,$(wildcard common.mk))
  $(error Cannot find common.mk build rules)
else
  include common.mk
endif

# Check that kernel version is at least 2.6.0, since we don't support 2.4.x
# kernels with the ixgbe driver. We can't use minimum_kver_check since SLES 10
# SP4's Make has a bug which causes $(eval) inside an ifeq conditional to error
# out. This was fixed in Make 3.81, but SLES 10 SP4 does not have a fix for
# this yet.
ifeq (0,$(shell [ ${KVER_CODE} -lt $(call get_kvercode,2,6,0) ]; echo "$?"))
  $(warning *** Aborting the build.)
  $(error This driver is not supported on kernel versions older than 2.6.0)
endif

######################
# Kernel Build Macro #
######################

# customized kernelbuild function
#
# ${1} is the kernel build target
# ${2} may contain extra rules to pass to kernelbuild macro
#
# We customize the kernelbuild target in order to provide our hack to disable
# CONFIG_PTP_1588_CLOCK support should -DNO_PTP_SUPPORT be defined in the extra
# cflags given on the command line.
devkernelbuild = $(call kernelbuild,$(if $(filter -DNO_PTP_SUPPORT,${EXTRA_CFLAGS}),CONFIG_PTP_1588_CLOCK=n) ${2},${1})

###############
# Build rules #
###############

# Standard compilation, with regular output
default:
    @+$(call devkernelbuild,modules)

# Noisy output, for extra debugging
noisy:
    @+$(call devkernelbuild,modules,V=1)

# Silence any output generated
silent:
    @+$(call devkernelbuild,modules,>/dev/null)

# Enable higher warning level
checkwarnings: clean
    @+$(call devkernelbuild,modules,W=1)

# Run sparse static analyzer
sparse: clean
    @+$(call devkernelbuild,modules,C=2 CF="-D__CHECK_ENDIAN__ -Wbitwise -Wcontext")

# Run coccicheck static analyzer
ccc: clean
    @+$(call devkernelbuild,modules,coccicheck MODE=report))

# Build manfiles
manfile:
    @gzip -c ../${DRIVER}.${MANSECTION} > ${DRIVER}.${MANSECTION}.gz

# Clean the module subdirectories
clean:
    @+$(call devkernelbuild,clean)
    @-rm -rf *.${MANSECTION}.gz *.ko

# Install the modules and manpage
install: default manfile
    @echo "Copying manpages..."
    @install -D -m 644 ${DRIVER}.${MANSECTION}.gz ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz
    @echo "Installing modules..."
    @+$(call devkernelbuild,modules_install)
    @echo "Running depmod..."
    @$(call cmd_depmod)

uninstall:
    rm -f ${INSTALL_MOD_PATH}/lib/modules/${KVER}/${INSTALL_MOD_DIR}/${DRIVER}.ko;
    $(call cmd_depmod)
    if [ -e ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ] ; then \
        rm -f ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ; \
    fi;

########
# Help #
########
help:
    @echo 'Cleaning targets:'
    @echo '  clean               - Clean files generated by kernel module build'
    @echo 'Build targets:'
    @echo '  default             - Build module(s) with standard verbosity'
    @echo '  noisy               - Build module(s) with V=1 verbosity -- very noisy'
    @echo '  silent              - Build module(s), squelching all output'
    @echo 'Static Analysis:'
    @echo '  checkwarnings       - Clean, then build module(s) with W=1 warnings enabled'
    @echo '  sparse              - Clean, then check module(s) using sparse'
    @echo '  ccc                 - Clean, then check module(s) using coccicheck'
    @echo 'Other targets:'
    @echo '  manfile             - Generate a gzipped manpage'
    @echo '  install             - Build then install the module(s) and manpage'
    @echo '  uninstall           - Uninstall the module(s) and manpage'
    @echo '  help                - Display this help message'
    @echo 'Variables:'
    @echo '  LINUX_VERSION       - Debug tool to force kernel LINUX_VERSION_CODE. Use at your own risk.'
    @echo '  W=N                 - Kernel variable for setting warning levels'
    @echo '  V=N                 - Kernel variable for setting output verbosity'
    @echo '  INSTALL_MOD_PATH    - Add prefix for the module and manpage installation path'
    @echo '  INSTALL_MOD_DIR     - Use module directory other than updates/drivers/net/ethernet/intel/${DRIVER}'
    @echo ' Other variables may be available for tuning make process, see'
    @echo ' Kernel Kbuild documentation for more information'

.PHONY: default noisy clean manfile silent sparse ccc install uninstall help

endif   # ifneq($(KERNELRELEASE),)