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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_
#ifdef pr_fmt
#undef pr_fmt
#endif
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#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 */
#define MBUF_BURST_SZ 32
/**
* 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 */
uint32_t 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 */
uint32_t 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
/* buffers */
void *pa[MBUF_BURST_SZ];
void *va[MBUF_BURST_SZ];
void *alloc_pa[MBUF_BURST_SZ];
void *alloc_va[MBUF_BURST_SZ];
};
#ifdef RTE_KNI_VHOST
uint32_t
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;
uint32_t flags;
struct sk_buff *cache;
struct rte_kni_fifo *fifo;
};
#endif
void kni_net_rx(struct kni_dev *kni);
void kni_net_init(struct net_device *dev);
void kni_net_config_lo_mode(char *lo_str);
void kni_net_poll_resp(struct kni_dev *kni);
void kni_set_ethtool_ops(struct net_device *netdev);
int ixgbe_kni_probe(struct pci_dev *pdev, struct net_device **lad_dev);
void ixgbe_kni_remove(struct pci_dev *pdev);
int igb_kni_probe(struct pci_dev *pdev, struct net_device **lad_dev);
void igb_kni_remove(struct pci_dev *pdev);
#endif
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