Imported Upstream version 16.04

[deb_dpdk.git] / lib / librte_eal / linuxapp / kni / kni_dev.h

diff --git a/lib/librte_eal/linuxapp/kni/kni_dev.h b/lib/librte_eal/linuxapp/kni/kni_dev.h
new file mode 100644 (file)
index 0000000..a0e5cb6
--- /dev/null
+++ b/lib/librte_eal/linuxapp/kni/kni_dev.h
@@ -0,0 +1,149 @@
+/*-
+ * 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