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MAAS pre requisite before deploying the solution:
=================================================

MAAS version 1.8.0 or latest should be installed and configure 
from ppa:maas/stable

Please do the following once you have configure the MAAS cluster and regional
controller.

1. Create two KVM virtual machine and have it named as bootstrap.maas and 
   node1.maas
2. Maually add chassis in MAAS with virsh as option and have both nodes listed 
   and commionined in MAAS.
3. Have all other physical nodes added into maas by PXE boot the nodes and 
   make sure node gets pxe booted theroug MAAS.
4. Tag all physical nodes as physical.
5. Tag bootstrap.maas as bootstrap and nodea.maas as neutron and gateway.

install juju 
============

add juju stable ppa by running command sudo apt-add-repository ppa:juju/stable
then run the following commands to do an juju install.

sudo apt-get update
sudo apt-get install juju

copy the environments.yaml file into ~/.juju/ directory and modify accordingly
MAAS_URL
MAAS_UUID

deploy the bundle
=================

run the following commands to clone a git repository and run the bundle.

git clone https://narindergupta@gerrit.opnfv.org/gerrit/joid
# to depploy odl with kilo in nonha mode
./deploy.sh -s odl -o kilo -t nonha

# to deploy openstail with kilo in nonha mode
./deply.sh -s opencontrail -o kilo -t nonha

NOTE: Wait for approximately 30-45 minutes and your openstack will be ready to use.
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/*
 * Header file for dma buffer sharing framework.
 *
 * Copyright(C) 2011 Linaro Limited. All rights reserved.
 * Author: Sumit Semwal <sumit.semwal@ti.com>
 *
 * Many thanks to linaro-mm-sig list, and specially
 * Arnd Bergmann <arnd@arndb.de>, Rob Clark <rob@ti.com> and
 * Daniel Vetter <daniel@ffwll.ch> for their support in creation and
 * refining of this idea.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that 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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __DMA_BUF_H__
#define __DMA_BUF_H__

#include <linux/file.h>
#include <linux/err.h>
#include <linux/scatterlist.h>
#include <linux/list.h>
#include <linux/dma-mapping.h>
#include <linux/fs.h>
#include <linux/fence.h>
#include <linux/wait.h>

struct device;
struct dma_buf;
struct dma_buf_attachment;

/**
 * struct dma_buf_ops - operations possible on struct dma_buf
 * @attach: [optional] allows different devices to 'attach' themselves to the
 *	    given buffer. It might return -EBUSY to signal that backing storage
 *	    is already allocated and incompatible with the requirements
 *	    of requesting device.
 * @detach: [optional] detach a given device from this buffer.
 * @map_dma_buf: returns list of scatter pages allocated, increases usecount
 *		 of the buffer. Requires atleast one attach to be called
 *		 before. Returned sg list should already be mapped into
 *		 _device_ address space. This call may sleep. May also return
 *		 -EINTR. Should return -EINVAL if attach hasn't been called yet.
 * @unmap_dma_buf: decreases usecount of buffer, might deallocate scatter
 *		   pages.
 * @release: release this buffer; to be called after the last dma_buf_put.
 * @begin_cpu_access: [optional] called before cpu access to invalidate cpu
 * 		      caches and allocate backing storage (if not yet done)
 * 		      respectively pin the objet into memory.
 * @end_cpu_access: [optional] called after cpu access to flush caches.
 * @kmap_atomic: maps a page from the buffer into kernel address
 * 		 space, users may not block until the subsequent unmap call.
 * 		 This callback must not sleep.
 * @kunmap_atomic: [optional] unmaps a atomically mapped page from the buffer.
 * 		   This Callback must not sleep.
 * @kmap: maps a page from the buffer into kernel address space.
 * @kunmap: [optional] unmaps a page from the buffer.
 * @mmap: used to expose the backing storage to userspace. Note that the
 * 	  mapping needs to be coherent - if the exporter doesn't directly
 * 	  support this, it needs to fake coherency by shooting down any ptes
 * 	  when transitioning away from the cpu domain.
 * @vmap: [optional] creates a virtual mapping for the buffer into kernel
 *	  address space. Same restrictions as for vmap and friends apply.
 * @vunmap: [optional] unmaps a vmap from the buffer
 */
struct dma_buf_ops {
	int (*attach)(struct dma_buf *, struct device *,
			struct dma_buf_attachment *);

	void (*detach)(struct dma_buf *, struct dma_buf_attachment *);

	/* For {map,unmap}_dma_buf below, any specific buffer attributes
	 * required should get added to device_dma_parameters accessible
	 * via dev->dma_params.
	 */
	struct sg_table * (*map_dma_buf)(struct dma_buf_attachment *,
						enum dma_data_direction);
	void (*unmap_dma_buf)(struct dma_buf_attachment *,
						struct sg_table *,
						enum dma_data_direction);
	/* TODO: Add try_map_dma_buf version, to return immed with -EBUSY
	 * if the call would block.
	 */

	/* after final dma_buf_put() */
	void (*release)(struct dma_buf *);

	int (*begin_cpu_access)(struct dma_buf *, size_t, size_t,
				enum dma_data_direction);
	void (*end_cpu_access)(struct dma_buf *, size_t, size_t,
			       enum dma_data_direction);
	void *(*kmap_atomic)(struct dma_buf *, unsigned long);
	void (*kunmap_atomic)(struct dma_buf *, unsigned long, void *);
	void *(*kmap)(struct dma_buf *, unsigned long);
	void (*kunmap)(struct dma_buf *, unsigned long, void *);

	int (*mmap)(struct dma_buf *, struct vm_area_struct *vma);

	void *(*vmap)(struct dma_buf *);
	void (*vunmap)(struct dma_buf *, void *vaddr);
};

/**
 * struct dma_buf - shared buffer object
 * @size: size of the buffer
 * @file: file pointer used for sharing buffers across, and for refcounting.
 * @attachments: list of dma_buf_attachment that denotes all devices attached.
 * @ops: dma_buf_ops associated with this buffer object.
 * @exp_name: name of the exporter; useful for debugging.
 * @list_node: node for dma_buf accounting and debugging.
 * @priv: exporter specific private data for this buffer object.
 * @resv: reservation object linked to this dma-buf
 */
struct dma_buf {
	size_t size;
	struct file *file;
	struct list_head attachments;
	const struct dma_buf_ops *ops;
	/* mutex to serialize list manipulation, attach/detach and vmap/unmap */
	struct mutex lock;
	unsigned vmapping_counter;
	void *vmap_ptr;
	const char *exp_name;
	struct list_head list_node;
	void *priv;
	struct reservation_object *resv;

	/* poll support */
	wait_queue_head_t poll;

	struct dma_buf_poll_cb_t {
		struct fence_cb cb;
		wait_queue_head_t *poll;

		unsigned long active;
	} cb_excl, cb_shared;
};

/**
 * struct dma_buf_attachment - holds device-buffer attachment data
 * @dmabuf: buffer for this attachment.
 * @dev: device attached to the buffer.
 * @node: list of dma_buf_attachment.
 * @priv: exporter specific attachment data.
 *
 * This structure holds the attachment information between the dma_buf buffer
 * and its user device(s). The list contains one attachment struct per device
 * attached to the buffer.
 */
struct dma_buf_attachment {
	struct dma_buf *dmabuf;
	struct device *dev;
	struct list_head node;
	void *priv;
};

/**
 * struct dma_buf_export_info - holds information needed to export a dma_buf
 * @exp_name:	name of the exporting module - useful for debugging.
 * @ops:	Attach allocator-defined dma buf ops to the new buffer
 * @size:	Size of the buffer
 * @flags:	mode flags for the file
 * @resv:	reservation-object, NULL to allocate default one
 * @priv:	Attach private data of allocator to this buffer
 *
 * This structure holds the information required to export the buffer. Used
 * with dma_buf_export() only.
 */
struct dma_buf_export_info {
	const char *exp_name;
	const struct dma_buf_ops *ops;
	size_t size;
	int flags;
	struct reservation_object *resv;
	void *priv;
};

/**
 * helper macro for exporters; zeros and fills in most common values
 */
#define DEFINE_DMA_BUF_EXPORT_INFO(a)	\
	struct dma_buf_export_info a = { .exp_name = KBUILD_MODNAME }

/**
 * get_dma_buf - convenience wrapper for get_file.
 * @dmabuf:	[in]	pointer to dma_buf
 *
 * Increments the reference count on the dma-buf, needed in case of drivers
 * that either need to create additional references to the dmabuf on the
 * kernel side.  For example, an exporter that needs to keep a dmabuf ptr
 * so that subsequent exports don't create a new dmabuf.
 */
static inline void get_dma_buf(struct dma_buf *dmabuf)
{
	get_file(dmabuf->file);
}

struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
							struct device *dev);
void dma_buf_detach(struct dma_buf *dmabuf,
				struct dma_buf_attachment *dmabuf_attach);

struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info);

int dma_buf_fd(struct dma_buf *dmabuf, int flags);
struct dma_buf *dma_buf_get(int fd);
void dma_buf_put(struct dma_buf *dmabuf);

struct sg_table *dma_buf_map_attachment(struct dma_buf_attachment *,
					enum dma_data_direction);
void dma_buf_unmap_attachment(struct dma_buf_attachment *, struct sg_table *,
				enum dma_data_direction);
int dma_buf_begin_cpu_access(struct dma_buf *dma_buf, size_t start, size_t len,
			     enum dma_data_direction dir);
void dma_buf_end_cpu_access(struct dma_buf *dma_buf, size_t start, size_t len,
			    enum dma_data_direction dir);
void *dma_buf_kmap_atomic(struct dma_buf *, unsigned long);
void dma_buf_kunmap_atomic(struct dma_buf *, unsigned long, void *);
void *dma_buf_kmap(struct dma_buf *, unsigned long);
void dma_buf_kunmap(struct dma_buf *, unsigned long, void *);

int dma_buf_mmap(struct dma_buf *, struct vm_area_struct *,
		 unsigned long);
void *dma_buf_vmap(struct dma_buf *);
void dma_buf_vunmap(struct dma_buf *, void *vaddr);
int dma_buf_debugfs_create_file(const char *name,
				int (*write)(struct seq_file *));
#endif /* __DMA_BUF_H__ */