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