Imported Upstream version 16.04

[deb_dpdk.git] / lib / librte_vhost / vhost-net.h

diff --git a/lib/librte_vhost/vhost-net.h b/lib/librte_vhost/vhost-net.h
new file mode 100644 (file)
index 0000000..f193a1f
--- /dev/null
+++ b/lib/librte_vhost/vhost-net.h
@@ -0,0 +1,114 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _VHOST_NET_CDEV_H_
+#define _VHOST_NET_CDEV_H_
+#include <stdint.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <linux/vhost.h>
+
+#include <rte_log.h>
+
+#include "rte_virtio_net.h"
+
+/* Macros for printing using RTE_LOG */
+#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
+#define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER1
+
+#ifdef RTE_LIBRTE_VHOST_DEBUG
+#define VHOST_MAX_PRINT_BUFF 6072
+#define LOG_LEVEL RTE_LOG_DEBUG
+#define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args)
+#define PRINT_PACKET(device, addr, size, header) do { \
+       char *pkt_addr = (char *)(addr); \
+       unsigned int index; \
+       char packet[VHOST_MAX_PRINT_BUFF]; \
+       \
+       if ((header)) \
+               snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%" PRIu64 ") Header size %d: ", (device->device_fh), (size)); \
+       else \
+               snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%" PRIu64 ") Packet size %d: ", (device->device_fh), (size)); \
+       for (index = 0; index < (size); index++) { \
+               snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), \
+                       "%02hhx ", pkt_addr[index]); \
+       } \
+       snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), "\n"); \
+       \
+       LOG_DEBUG(VHOST_DATA, "%s", packet); \
+} while (0)
+#else
+#define LOG_LEVEL RTE_LOG_INFO
+#define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
+#define PRINT_PACKET(device, addr, size, header) do {} while (0)
+#endif
+
+
+/*
+ * Structure used to identify device context.
+ */
+struct vhost_device_ctx {
+       pid_t           pid;    /* PID of process calling the IOCTL. */
+       uint64_t        fh;     /* Populated with fi->fh to track the device index. */
+};
+
+int vhost_new_device(struct vhost_device_ctx);
+void vhost_destroy_device(struct vhost_device_ctx);
+
+void vhost_set_ifname(struct vhost_device_ctx,
+       const char *if_name, unsigned int if_len);
+
+int vhost_get_features(struct vhost_device_ctx, uint64_t *);
+int vhost_set_features(struct vhost_device_ctx, uint64_t *);
+
+int vhost_set_vring_num(struct vhost_device_ctx, struct vhost_vring_state *);
+int vhost_set_vring_addr(struct vhost_device_ctx, struct vhost_vring_addr *);
+int vhost_set_vring_base(struct vhost_device_ctx, struct vhost_vring_state *);
+int vhost_get_vring_base(struct vhost_device_ctx,
+       uint32_t, struct vhost_vring_state *);
+
+int vhost_set_vring_kick(struct vhost_device_ctx, struct vhost_vring_file *);
+int vhost_set_vring_call(struct vhost_device_ctx, struct vhost_vring_file *);
+
+int vhost_set_backend(struct vhost_device_ctx, struct vhost_vring_file *);
+
+int vhost_set_owner(struct vhost_device_ctx);
+int vhost_reset_owner(struct vhost_device_ctx);
+
+/*
+ * Backend-specific cleanup. Defined by vhost-cuse and vhost-user.
+ */
+void vhost_backend_cleanup(struct virtio_net *dev);
+
+#endif /* _VHOST_NET_CDEV_H_ */