build: Rework patch mechanism for Fuel submodules

While refactoring the patching mechanism, take care of:
- Sync submodule handling with Fuel@OPFNV;
- build: Investigate/prepare for moving patches to Fuel@OPNFV;
- build: Investigate divergent fuel-mirror;
- ISO build: cacheid for Fuel comps should not depend on
  Armband git commit;

CHANGE:
 Rename/shuffle patches while grouping them in "features",
 preparing for upstreaming them to Fuel@OPNFV and beyond.

CHANGE:
 Allow linking patches for better representing the dependency
 between one patch and different features.
 e.g. 0001-Add-arch-to-nailgun-release-and-target-image.patch:
   - part of `multiarch-fuel`, because it extends Fuel;
   - part of `direct-kernel-boot`, as arch is required for that;
   - part of `cross-bootstrap`, target image is arch-dependent;
 NOTE: Patch links are not staged to Fuel@OPNFV, they only serve
 as markers that a specific patch is part of a feature.

CHANGE:
 Kill all Fuel component submodules, now handled in Fuel@OPNFV:
  - fuel-agent
  - fuel-astute
  - fuel-library
  - fuel-mirror
  - fuel-nailgun-agent
  - fuel-web

CHANGE:
 Move armband-fuel-config.mk to armband git root.

FIXME: m1.micro-Increase-profile-RAM-size-to-128MB.patch is NOT
 part of `cross-bootstrap` feature, but patch context says so ...

FIXME: 0001-Add-arm64-deb-repositories-setup.patch is broken at
 `make patches-export` by removing spaces at EOL.

v2 -> v3:
 * Phony patch support (links to show a patch belongs to a feature);
 * Updated README.md
v3 -> v7:
 * Re-export Fuel submodules & plugins patches (update patch context);
 * Update Cavium mail addresses (s/caviumnetworks.com/cavium.com/);
 * Ignore submodule changes;
 * Add armband git repo info to gitinfo_fuel.txt at build time;

Implements: ARMBAND-136
Closes-bug: ARMBAND-95
Closes-bug: ARMBAND-93
Closes-bug: ARMBAND-92

Change-Id: I1a236d9f43b2e6dca22055911f696b43c22b5973
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 150 insertions, 0 deletions

diff --git a/patches/fuel-plugin-ovs/0006-AArch64-Add-native-build-support.patch b/patches/fuel-plugin-ovs/0006-AArch64-Add-native-build-support.patch
new file mode 100644
index 00000000..b4ca8841
--- /dev/null
+++ b/patches/fuel-plugin-ovs/0006-AArch64-Add-native-build-support.patch
@@ -0,0 +1,150 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Mon, 5 Sep 2016 18:56:46 +0200
+Subject: [PATCH] AArch64: Add native build support
+
+FIXME: OVS-NSH-DPDK is not yet supported on arm64, see [1].
+
+[1] https://jira.opnfv.org/browse/ARMBAND-86
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ ovs_build/build-ovs-dpdk.sh                      | 19 ++++++++--
+ ovs_build/build-ovs-nsh-dpdk.sh                  | 48 ++++++++++++++----------
+ ovs_build/openvswitch-dpdk_2.5.90/debian/control |  2 +-
+ 3 files changed, 45 insertions(+), 24 deletions(-)
+
+diff --git a/ovs_build/build-ovs-dpdk.sh b/ovs_build/build-ovs-dpdk.sh
+index a14f5fd..a0c50e3 100755
+--- a/ovs_build/build-ovs-dpdk.sh
++++ b/ovs_build/build-ovs-dpdk.sh
+@@ -10,6 +10,10 @@ BUILD_DEST=${BUILD_DEST:-/tmp/ovs-dpdk}
+
+ export DEB_BUILD_OPTIONS='parallel=8 nocheck'
+
++# AArch64 specifics, repository base URL, debian build versions
++AARCH64_REPO=${AARCH64_REPO:-'https://linux.enea.com/mos-repos/ubuntu/9.0'}
++AARCH64_DPDK_DEBV=${AARCH64_DPDK_DEBV:-'0~u14.04+mos1+mos9.0+amos1'}
++
+ # Keep track of native arch (BUILD_ARCH) and target arch(s) (UBUNTU_ARCH)
+ # All archs should be represented in `dpkg --print-architecture` format
+ # UBUNTU_ARCH holds a space-separated list of target arch(s)
+@@ -24,10 +28,17 @@ for ARCH in ${UBUNTU_ARCH}; do
+     # Native building for: DPDK, OVS-DPDK, OVS
+     sudo apt-get -y --force-yes install devscripts dpkg-dev wget
+
+-    wget -c http://fast.dpdk.org/rel/dpdk-16.07.tar.xz
+-    xz -d dpdk-16.07.tar.xz; tar xvf dpdk-16.07.tar
+-    cd dpdk-16.07
+-    cp -r ${BUILD_SRC}/dpdk_16.07/debian .
++    if [ ${ARCH} = 'arm64' ]; then
++      # Armband: arm64 already has debian control archive for DPDK 16.07
++      dget -x -u ${AARCH64_REPO}/pool/main/d/dpdk/dpdk_16.07-${AARCH64_DPDK_DEBV}.dsc
++      cd dpdk-16.07
++    else
++      # Other archs will use the debian control archive in this repo
++      wget -c http://fast.dpdk.org/rel/dpdk-16.07.tar.xz
++      xz -d dpdk-16.07.tar.xz; tar xvf dpdk-16.07.tar
++      cd dpdk-16.07
++      cp -r ${BUILD_SRC}/dpdk_16.07/debian .
++    fi
+
+     # DPDK build-dep install: copy from debian/control
+     sudo apt-get install -y --force-yes debhelper \
+diff --git a/ovs_build/build-ovs-nsh-dpdk.sh b/ovs_build/build-ovs-nsh-dpdk.sh
+index a65a2bb..59d8a79 100755
+--- a/ovs_build/build-ovs-nsh-dpdk.sh
++++ b/ovs_build/build-ovs-nsh-dpdk.sh
+@@ -25,10 +25,12 @@ for ARCH in ${UBUNTU_ARCH}; do
+     # Native building for: DPDK, OVS-DPDK, OVS
+     sudo apt-get build-dep openvswitch -y --force-yes
+     sudo apt-get -y --force-yes install devscripts dpkg-dev wget
+-    dget -x -u https://launchpad.net/ubuntu/+archive/primary/+files/dpdk_2.2.0-0ubuntu8.dsc
+
++    # FIXME(armband): OVS-NSH-DPDK is not yet supported on arm64
+     # DPDK build-dep install: copy from debian/control
+-    sudo apt-get install -y --force-yes debhelper \
++    if [ ! ${ARCH} = 'arm64' ]; then
++      dget -x -u https://launchpad.net/ubuntu/+archive/primary/+files/dpdk_2.2.0-0ubuntu8.dsc
++      sudo apt-get install -y --force-yes debhelper \
+                dh-python \
+                dh-systemd \
+                doxygen  \
+@@ -43,19 +45,20 @@ for ARCH in ${UBUNTU_ARCH}; do
+                texlive-fonts-recommended  \
+                texlive-latex-extra
+
+-    cd dpdk-2.2.0; rm -rf debian/patches/
+-    cat << EOF > debian/changelog
++      cd dpdk-2.2.0; rm -rf debian/patches/
++      cat << EOF > debian/changelog
+ dpdk (2.2.0-1) unstable; urgency=low
+   * DPDK 2.2.0
+  -- DPDK team <dev@dpdk.org>  $(date --rfc-2822)
+ EOF
+-    # DPDK build & install (required for following native build of OVS-NSH)
+-    debian/rules build; fakeroot debian/rules binary
+-    cd ${BUILD_HOME}; sudo dpkg -i *.deb
+-    apt-get download libxenstore3.0
++      # DPDK build & install (required for following native build of OVS-NSH)
++      debian/rules build; fakeroot debian/rules binary
++      cd ${BUILD_HOME}; sudo dpkg -i *.deb
++      apt-get download libxenstore3.0
+
+-    cd ${BUILD_HOME}
+-    dget -x -u https://launchpad.net/ubuntu/+archive/primary/+files/openvswitch-dpdk_2.4.0-0ubuntu1.dsc
++      # OVS-NSH-DPDK build preparations: download sources, patch if needed
++      dget -x -u https://launchpad.net/ubuntu/+archive/primary/+files/openvswitch-dpdk_2.4.0-0ubuntu1.dsc
++    fi
+
+     # OVS-NSH build-dep install: copy from debian/control
+     sudo apt-get install -y --force-yes autoconf \
+@@ -88,20 +91,27 @@ EOF
+       patch -p1 < ${DIR}/patches/${patch}
+     done
+     cd ${BUILD_HOME}; tar czvf ovs.tar.gz ovs
+-    rm -rf openvswitch-dpdk-${OVS_VER}*
+-    cd openvswitch-dpdk-2.4.0; uupdate -v ${OVS_VER} ../ovs.tar.gz
+-    cd ../openvswitch-dpdk-${OVS_VER}
+-    sed -i "s/include\/rte_config.h/include\/dpdk\/rte_config.h/" acinclude.m4
+-    sed -i 's/DPDK_INCLUDE=.*/DPDK_INCLUDE=$RTE_SDK\/include\/dpdk/'  acinclude.m4
+-    autoreconf --install
+-    rm -rf debian/patches/
+-    cat << EOF > debian/changelog
++
++    # FIXME(armband): OVS-NSH-DPDK is not yet supported on arm64
++    if [ ! ${ARCH} = 'arm64' ]; then
++      rm -rf openvswitch-dpdk-${OVS_VER}{,.orig*}
++      cd openvswitch-dpdk-2.4.0
++      uupdate -v ${OVS_VER} ../ovs.tar.gz
++      cd ${BUILD_HOME}/openvswitch-dpdk-${OVS_VER}
++      sed -i "s/include\/rte_config.h/include\/dpdk\/rte_config.h/" acinclude.m4
++      sed -i 's/DPDK_INCLUDE=.*/DPDK_INCLUDE=$RTE_SDK\/include\/dpdk/'  acinclude.m4
++      rm -rf debian/patches/
++      autoreconf --install
++      # OVS-NSH-DPDK build
++      cat << EOF > debian/changelog
+ openvswitch-dpdk (${OVS_VER}-1.nsh) unstable; urgency=low
+   * Support NSH
+  -- Open vSwitch team <dev@openvswitch.org>  $(date --rfc-2822)
+ EOF
+-    debian/rules build; fakeroot debian/rules binary
++      debian/rules build; fakeroot debian/rules binary
++    fi
+
++    # OVS-NSH build
+     cd ${BUILD_HOME}/ovs
+     cat << EOF > debian/changelog
+ openvswitch (${OVS_VER}-1.nsh) unstable; urgency=low
+diff --git a/ovs_build/openvswitch-dpdk_2.5.90/debian/control b/ovs_build/openvswitch-dpdk_2.5.90/debian/control
+index e7171b9..e0c27c5 100644
+--- a/ovs_build/openvswitch-dpdk_2.5.90/debian/control
++++ b/ovs_build/openvswitch-dpdk_2.5.90/debian/control
+@@ -27,7 +27,7 @@ Homepage: http://openvswitch.org/
+ XS-Testsuite: autopkgtest
+
+ Package: openvswitch-switch-dpdk
+-Architecture: i386 amd64
++Architecture: i386 amd64 arm64
+ Depends: dpdk,
+          openvswitch-switch (>= 2.4.0),
+          ${misc:Depends},