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, 93 insertions, 0 deletions

diff --git a/patches/fuel-library/arm64-bug-fixes/0004-nova-AArch64-enable-hugepage-support.patch b/patches/fuel-library/arm64-bug-fixes/0004-nova-AArch64-enable-hugepage-support.patch
new file mode 100644
index 00000000..ab0fb664
--- /dev/null
+++ b/patches/fuel-library/arm64-bug-fixes/0004-nova-AArch64-enable-hugepage-support.patch
@@ -0,0 +1,93 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Fri, 16 Sep 2016 21:31:56 +0200
+Subject: [PATCH] nova: AArch64: enable hugepage support
+
+This patch adds AArch64 to the hardcoded lists of valid
+architectures for hugepage support.
+
+Closes-bug: ARMBAND-90
+
+Signed-off-by: Veena Lingadahalli <vlingadahalli@mvista.com>
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ .../nova-AArch64-enable-hugepage-support.patch     | 47 ++++++++++++++++++++++
+ .../openstack_tasks/manifests/roles/compute.pp     | 12 ++++++
+ 2 files changed, 59 insertions(+)
+ create mode 100644 deployment/puppet/openstack/files/nova-AArch64-enable-hugepage-support.patch
+
+diff --git a/deployment/puppet/openstack/files/nova-AArch64-enable-hugepage-support.patch b/deployment/puppet/openstack/files/nova-AArch64-enable-hugepage-support.patch
+new file mode 100644
+index 0000000..72d6bfc
+--- /dev/null
++++ b/deployment/puppet/openstack/files/nova-AArch64-enable-hugepage-support.patch
+@@ -0,0 +1,47 @@
++From: Veena Lingadahalli <vlingadahalli@mvista.com>
++Date: Fri Sep 16 17:52:02 CEST 2016
++Subject: [PATCH] nova: AArch64: enable hugepage support
++
++This patch adds AArch64 to the hardcoded lists of valid
++architectures for hugepage support.
++
++Signed-off-by: Veena Lingadahalli <vlingadahalli@mvista.com>
++Acked-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
++---
++
++diff --git a/compute/arch.py a/compute/arch.py
++index 265f853..6a4b4a3 100644
++--- a/compute/arch.py
+++++ a/compute/arch.py
++@@ -156,6 +156,9 @@ def canonicalize(name):
++     if newname == "amd64":
++         newname = X86_64
++
+++    if newname == "aarch64":
+++        newname = AARCH64
+++
++     if not is_valid(newname):
++         raise exception.InvalidArchitectureName(arch=name)
++
++diff --git a/virt/libvirt/driver.py a/virt/libvirt/driver.py
++index bac17cf..0e0bcae 100644
++--- a/virt/libvirt/driver.py
+++++ a/virt/libvirt/driver.py
++@@ -5206,7 +5206,7 @@ class LibvirtDriver(driver.ComputeDriver):
++                     self._bad_libvirt_numa_version_warn = True
++                 return False
++
++-        support_matrix = {(arch.I686, arch.X86_64): MIN_LIBVIRT_NUMA_VERSION,
+++        support_matrix = {(arch.I686, arch.X86_64, arch.AARCH64): MIN_LIBVIRT_NUMA_VERSION,
++                           (arch.PPC64,
++                            arch.PPC64LE): MIN_LIBVIRT_NUMA_VERSION_PPC}
++         caps = self._host.get_capabilities()
++@@ -5222,7 +5222,7 @@ class LibvirtDriver(driver.ComputeDriver):
++     def _has_hugepage_support(self):
++         # This means that the host can support multiple values for the size
++         # field in LibvirtConfigGuestMemoryBackingPage
++-        supported_archs = [arch.I686, arch.X86_64]
+++        supported_archs = [arch.I686, arch.X86_64, arch.AARCH64]
++         caps = self._host.get_capabilities()
++         return ((caps.host.cpu.arch in supported_archs) and
++                 self._host.has_min_version(MIN_LIBVIRT_HUGEPAGE_VERSION,
+diff --git a/deployment/puppet/openstack_tasks/manifests/roles/compute.pp b/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
+index 2f0f2a8..dc61033 100644
+--- a/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
++++ b/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
+@@ -330,6 +330,18 @@ class openstack_tasks::roles::compute {
+     unless  => "patch -p1 -R -N --dry-run < ${nova_path}/libvirt-vga-console.patch",
+     cwd     => $nova_path,
+     require => [Package['patch']],
++  } ->
++  # FIXME(armband): Add AArch64 to arch list for nova hugepage support
++  file { "${nova_path}/nova-AArch64-enable-hugepage-support.patch":
++    ensure => "file",
++    source => "puppet:///modules/openstack/nova-AArch64-enable-hugepage-support.patch",
++  } ->
++  exec { 'nova AArch64 enable hugepage support':
++    path    => ['/usr/bin'],
++    command => "patch -p1 < ${nova_path}/nova-AArch64-enable-hugepage-support.patch",
++    unless  => "patch -p1 -R -N --dry-run < ${nova_path}/nova-AArch64-enable-hugepage-support.patch",
++    cwd     => $nova_path,
++    require => [Package['patch']],
+   }
+
+   class { '::nova::availability_zone':