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---
AlignEscapedNewlinesLeft: true
AlignTrailingComments: true
AllowAllParametersOfDeclarationOnNextLine: true
AllowShortIfStatementsOnASingleLine: false
AllowShortLoopsOnASingleLine: false
AllowShortFunctionsOnASingleLine: false
AlwaysBreakBeforeMultilineStrings: false
BreakBeforeBinaryOperators: false
BreakBeforeTernaryOperators: true
BinPackParameters: true
BreakBeforeBraces: GNU
ColumnLimit:     79
IndentCaseLabels: false
MaxEmptyLinesToKeep: 1
PenaltyBreakBeforeFirstCallParameter: 19
PenaltyBreakComment: 60
PenaltyBreakString: 1000
PenaltyBreakFirstLessLess: 120
PenaltyExcessCharacter: 1000000
PenaltyReturnTypeOnItsOwnLine: 60
PointerBindsToType: false
SpaceBeforeAssignmentOperators: true
SpaceBeforeParens: Always
SpacesBeforeTrailingComments: 1
SpacesInParentheses: false
SpaceInEmptyParentheses: false
SpacesInCStyleCastParentheses: false
SpaceAfterControlStatementKeyword: true
Cpp11BracedListStyle: true
Standard:        Cpp11
SortIncludes: false
IndentWidth:     2
TabWidth:        4
UseTab:          Never
IndentFunctionDeclarationAfterType: false
ContinuationIndentWidth: 4
...
ht .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
# Copyright (c) 2015 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Scripts require non-POSIX parts of bash
SHELL := /bin/bash

DPDK_BUILD_DIR        ?= $(CURDIR)/_build
DPDK_INSTALL_DIR      ?= $(CURDIR)/_install
DPDK_PKTMBUF_HEADROOM ?= 128
DPDK_DOWNLOAD_DIR     ?= $(HOME)/Downloads
DPDK_MARCH            ?= native
DPDK_TUNE             ?= generic
DPDK_DEBUG            ?= n

B := $(DPDK_BUILD_DIR)
I := $(DPDK_INSTALL_DIR)
DPDK_VERSION ?= 16.07
DPDK_BASE_URL ?= http://fast.dpdk.org/rel
DPDK_TARBALL := dpdk-$(DPDK_VERSION).tar.xz
DPDK_TAR_URL := $(DPDK_BASE_URL)/$(DPDK_TARBALL)
DPDK_16.04_TARBALL_MD5_CKSUM := d1f82e7d7589b3b2f623c155442b8306
DPDK_16.07_TARBALL_MD5_CKSUM := 690a2bb570103e58d12f9806e8bf21be
DPDK_16.11-rc3_TARBALL_MD5_CKSUM := b5d924070ea9320abe7d2c7b443a6b63
DPDK_SOURCE := $(B)/dpdk-$(DPDK_VERSION)

ifneq (,$(findstring clang,$(CC)))
DPDK_CC=clang
else
DPDK_CC=gcc
endif


ifeq (,$(DPDK_TARGET))
DPDK_TARGET := x86_64-native-linuxapp-$(DPDK_CC)
endif

JOBS := $(shell grep processor /proc/cpuinfo | wc -l)

# compiler/linker custom arguments
DPDK_CPU_CFLAGS := -pie -fPIC
DPDK_CPU_LDFLAGS :=
DPDK_EXTRA_LDFLAGS := -g

ifeq ($(DPDK_DEBUG),n)
DPDK_EXTRA_CFLAGS := -g -mtune=$(DPDK_TUNE)
else
DPDK_EXTRA_CFLAGS := -g -O0
endif

# translate gcc march values to DPDK arch
ifeq ($(DPDK_MARCH),native)
DPDK_MACHINE:=native                     # autodetect host CPU
else ifeq ($(DPDK_MARCH),corei7)
DPDK_MACHINE:=nhm                        # Nehalem / Westmere
else ifeq ($(DPDK_MARCH),corei7-avx)
DPDK_MACHINE:=snb                        # Sandy Bridge
else ifeq ($(DPDK_MARCH),core-avx-i)
DPDK_MACHINE:=ivb                        # Ivy Bridge
else ifeq ($(DPDK_MARCH),core-avx2)
DPDK_MACHINE:=hsw                        # Haswell
else ifeq ($(DPDK_MARCH),armv7a)
DPDK_MACHINE:=armv7a                     # ARMv7
else ifeq ($(DPDK_MARCH),armv8a)
DPDK_MACHINE:=armv8a                     # ARMv8
else
$(error Unknown DPDK_MARCH)
endif

# assemble DPDK make arguments
DPDK_MAKE_ARGS := -C $(DPDK_SOURCE) -j $(JOBS) \
	T=$(DPDK_TARGET) \
	RTE_CONFIG_TEMPLATE=../custom-config \
	RTE_OUTPUT=$(I) \
	EXTRA_CFLAGS="$(DPDK_EXTRA_CFLAGS)" \
	EXTRA_LDFLAGS="$(DPDK_EXTRA_LDFLAGS)" \
	CPU_CFLAGS="$(DPDK_CPU_CFLAGS)" \
	CPU_LDFLAGS="$(DPDK_CPU_LDFLAGS)" \
        $(DPDK_MAKE_EXTRA_ARGS)

DPDK_SOURCE_FILES := $(shell  [ -e $(DPDK_SOURCE) ] && find $(DPDK_SOURCE) -name "*.[chS]")  

define set
@if grep -q CONFIG_$1 $@ ; \
	then sed -i -e 's/.*\(CONFIG_$1=\).*/\1$2/' $@ ; \
	else echo CONFIG_$1=$2 >> $@ ; \
fi
endef

all: build

$(B)/custom-config: $(B)/.patch.ok Makefile
	@echo --- generating custom config from $(DPDK_SOURCE)/config/defconfig_$(DPDK_TARGET) ---
	@cpp -undef -ffreestanding -x assembler-with-cpp $(DPDK_SOURCE)/config/defconfig_$(DPDK_TARGET) $@
	$(call set,RTE_MACHINE,$(DPDK_MACHINE))
	@# modify options
	$(call set,RTE_MAX_LCORE,256)
	$(call set,RTE_PKTMBUF_HEADROOM,$(DPDK_PKTMBUF_HEADROOM))
	$(call set,RTE_LIBEAL_USE_HPET,y)
	$(call set,RTE_BUILD_COMBINE_LIBS,y)
	$(call set,RTE_LIBRTE_I40E_16BYTE_RX_DESC,y)
	$(call set,RTE_PCI_CONFIG,y)
	$(call set,RTE_PCI_EXTENDED_TAG,"on")
	$(call set,RTE_PCI_MAX_READ_REQUEST_SIZE,4096)
	@# enable debug init for device drivers
	$(call set,RTE_LIBRTE_I40E_DEBUG_INIT,$(DPDK_DEBUG))
	$(call set,RTE_LIBRTE_IXGBE_DEBUG_INIT,$(DPDK_DEBUG))
	$(call set,RTE_LIBRTE_E1000_DEBUG_INIT,$(DPDK_DEBUG))
	$(call set,RTE_LIBRTE_VIRTIO_DEBUG_INIT,$(DPDK_DEBUG))
	$(call set,RTE_LIBRTE_VMXNET3_DEBUG_INIT,$(DPDK_DEBUG))
	$(call set,RTE_LIBRTE_PMD_BOND,y)
	$(call set,RTE_LIBRTE_IP_FRAG,y)
	@# not needed
	$(call set,RTE_LIBRTE_TIMER,n)
	$(call set,RTE_LIBRTE_CFGFILE,n)
	$(call set,RTE_LIBRTE_LPM,n)
	$(call set,RTE_LIBRTE_ACL,n)
	$(call set,RTE_LIBRTE_POWER,n)
	$(call set,RTE_LIBRTE_DISTRIBUTOR,n)
	$(call set,RTE_LIBRTE_REORDER,n)
	$(call set,RTE_LIBRTE_PORT,n)
	$(call set,RTE_LIBRTE_TABLE,n)
	$(call set,RTE_LIBRTE_PIPELINE,n)
	$(call set,RTE_KNI_KMOD,n)
	@rm -f .config.ok

$(CURDIR)/$(DPDK_TARBALL):
	@mkdir -p $(B)
	@if [ -e $(DPDK_DOWNLOAD_DIR)/$(DPDK_TARBALL) ] ; \
		then cp $(DPDK_DOWNLOAD_DIR)/$(DPDK_TARBALL) $(CURDIR) ; \
		else curl -o $(CURDIR)/$(DPDK_TARBALL) -LO $(DPDK_TAR_URL) ; \
	fi
	@rm -f $(B)/.download.ok

$(B)/.download.ok: $(CURDIR)/$(DPDK_TARBALL)
	@openssl md5 $< | cut -f 2 -d " " - > $(B)/$(DPDK_TARBALL).md5sum
	@([ "$$(<$(B)/$(DPDK_TARBALL).md5sum)" = "$(DPDK_$(DPDK_VERSION)_TARBALL_MD5_CKSUM)" ] || \
	( echo "Bad Checksum! Please remove $< and retry" && \
		rm $(B)/$(DPDK_TARBALL).md5sum && false ))
	@touch $@

.PHONY: download
download: $(B)/.download.ok

$(B)/.extract.ok: $(B)/.download.ok
	@echo --- extracting $(DPDK_TARBALL) ---
	@tar --directory $(B) --extract --file $(CURDIR)/$(DPDK_TARBALL)
	@touch $@

.PHONY: extract
extract: $(B)/.extract.ok

$(B)/.patch.ok: $(B)/.extract.ok
ifneq ($(wildcard $(CURDIR)/dpdk-$(DPDK_VERSION)_patches/*.patch),)
	@echo --- patching ---
	for f in $(CURDIR)/dpdk-$(DPDK_VERSION)_patches/*.patch ; do \
		echo Applying patch: $$(basename $$f) ; \
		patch -p1 -d $(DPDK_SOURCE) < $$f ; \
	done
endif
	@touch $@

.PHONY: patch
patch: $(B)/.patch.ok

$(B)/.config.ok: $(B)/.patch.ok $(B)/custom-config
	@make $(DPDK_MAKE_ARGS) config
	@touch $@

.PHONY: config
config: $(B)/.config.ok

$(B)/.build.ok: $(DPDK_SOURCE_FILES)
	@if [ ! -e $(B)/.config.ok ] ; then echo 'Please run "make config" first' && false ; fi
	@make $(DPDK_MAKE_ARGS) install
	@dkms/create_deb_manifest.sh $(DPDK_VERSION) $(subst $(realpath ..)/,,$(B))
	@touch $@

.PHONY: build
build: $(B)/.build.ok

.PHONY: clean
clean:
	@rm -rf $(B) $(I)