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diff --git a/lib/librte_eal/linuxapp/kni/kni_dev.h b/lib/librte_eal/linuxapp/kni/kni_dev.h
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+/*-
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Corporation
+ */
+
+#ifndef _KNI_DEV_H_
+#define _KNI_DEV_H_
+
+#include <linux/if.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/netdevice.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+
+#ifdef RTE_KNI_VHOST
+#include <net/sock.h>
+#endif
+
+#include <exec-env/rte_kni_common.h>
+#define KNI_KTHREAD_RESCHEDULE_INTERVAL 5 /* us */
+
+/**
+ * A structure describing the private information for a kni device.
+ */
+
+struct kni_dev {
+ /* kni list */
+ struct list_head list;
+
+ struct net_device_stats stats;
+ int status;
+ uint16_t group_id; /* Group ID of a group of KNI devices */
+ unsigned core_id; /* Core ID to bind */
+ char name[RTE_KNI_NAMESIZE]; /* Network device name */
+ struct task_struct *pthread;
+
+ /* wait queue for req/resp */
+ wait_queue_head_t wq;
+ struct mutex sync_lock;
+
+ /* PCI device id */
+ uint16_t device_id;
+
+ /* kni device */
+ struct net_device *net_dev;
+ struct net_device *lad_dev;
+ struct pci_dev *pci_dev;
+
+ /* queue for packets to be sent out */
+ void *tx_q;
+
+ /* queue for the packets received */
+ void *rx_q;
+
+ /* queue for the allocated mbufs those can be used to save sk buffs */
+ void *alloc_q;
+
+ /* free queue for the mbufs to be freed */
+ void *free_q;
+
+ /* request queue */
+ void *req_q;
+
+ /* response queue */
+ void *resp_q;
+
+ void * sync_kva;
+ void *sync_va;
+
+ void *mbuf_kva;
+ void *mbuf_va;
+
+ /* mbuf size */
+ unsigned mbuf_size;
+
+ /* synchro for request processing */
+ unsigned long synchro;
+
+#ifdef RTE_KNI_VHOST
+ struct kni_vhost_queue* vhost_queue;
+ volatile enum {
+ BE_STOP = 0x1,
+ BE_START = 0x2,
+ BE_FINISH = 0x4,
+ }vq_status;
+#endif
+};
+
+#define KNI_ERR(args...) printk(KERN_DEBUG "KNI: Error: " args)
+#define KNI_PRINT(args...) printk(KERN_DEBUG "KNI: " args)
+#ifdef RTE_KNI_KO_DEBUG
+ #define KNI_DBG(args...) printk(KERN_DEBUG "KNI: " args)
+#else
+ #define KNI_DBG(args...)
+#endif
+
+#ifdef RTE_KNI_VHOST
+unsigned int
+kni_poll(struct file *file, struct socket *sock, poll_table * wait);
+int kni_chk_vhost_rx(struct kni_dev *kni);
+int kni_vhost_init(struct kni_dev *kni);
+int kni_vhost_backend_release(struct kni_dev *kni);
+
+struct kni_vhost_queue {
+ struct sock sk;
+ struct socket *sock;
+ int vnet_hdr_sz;
+ struct kni_dev *kni;
+ int sockfd;
+ unsigned int flags;
+ struct sk_buff* cache;
+ struct rte_kni_fifo* fifo;
+};
+
+#endif
+
+#ifdef RTE_KNI_VHOST_DEBUG_RX
+ #define KNI_DBG_RX(args...) printk(KERN_DEBUG "KNI RX: " args)
+#else
+ #define KNI_DBG_RX(args...)
+#endif
+
+#ifdef RTE_KNI_VHOST_DEBUG_TX
+ #define KNI_DBG_TX(args...) printk(KERN_DEBUG "KNI TX: " args)
+#else
+ #define KNI_DBG_TX(args...)
+#endif
+
+#endif