diff options
Diffstat (limited to 'lib/librte_vhost/vhost-net.h')
| -rw-r--r-- | lib/librte_vhost/vhost-net.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/lib/librte_vhost/vhost-net.h b/lib/librte_vhost/vhost-net.h new file mode 100644 index 00000000..f193a1f6 --- /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_ */ |