a90ca1a12e
The vhost_net_device_ops indirection is unnecessary because there is only one implementation of the vhost common code. Removing it makes the code more readable. Signed-off-by: Rich Lane <rich.lane@bigswitch.com> Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
115 lines
4.4 KiB
C
115 lines
4.4 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _VHOST_NET_CDEV_H_
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#define _VHOST_NET_CDEV_H_
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#include <stdint.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <linux/vhost.h>
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#include <rte_log.h>
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#include "rte_virtio_net.h"
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/* Macros for printing using RTE_LOG */
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#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
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#define RTE_LOGTYPE_VHOST_DATA RTE_LOGTYPE_USER1
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#ifdef RTE_LIBRTE_VHOST_DEBUG
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#define VHOST_MAX_PRINT_BUFF 6072
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#define LOG_LEVEL RTE_LOG_DEBUG
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#define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args)
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#define PRINT_PACKET(device, addr, size, header) do { \
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char *pkt_addr = (char *)(addr); \
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unsigned int index; \
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char packet[VHOST_MAX_PRINT_BUFF]; \
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\
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if ((header)) \
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snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%" PRIu64 ") Header size %d: ", (device->device_fh), (size)); \
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else \
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snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%" PRIu64 ") Packet size %d: ", (device->device_fh), (size)); \
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for (index = 0; index < (size); index++) { \
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snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), \
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"%02hhx ", pkt_addr[index]); \
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} \
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snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), "\n"); \
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\
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LOG_DEBUG(VHOST_DATA, "%s", packet); \
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} while (0)
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#else
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#define LOG_LEVEL RTE_LOG_INFO
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#define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
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#define PRINT_PACKET(device, addr, size, header) do {} while (0)
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#endif
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/*
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* Structure used to identify device context.
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*/
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struct vhost_device_ctx {
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pid_t pid; /* PID of process calling the IOCTL. */
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uint64_t fh; /* Populated with fi->fh to track the device index. */
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};
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int vhost_new_device(struct vhost_device_ctx);
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void vhost_destroy_device(struct vhost_device_ctx);
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void vhost_set_ifname(struct vhost_device_ctx,
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const char *if_name, unsigned int if_len);
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int vhost_get_features(struct vhost_device_ctx, uint64_t *);
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int vhost_set_features(struct vhost_device_ctx, uint64_t *);
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int vhost_set_vring_num(struct vhost_device_ctx, struct vhost_vring_state *);
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int vhost_set_vring_addr(struct vhost_device_ctx, struct vhost_vring_addr *);
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int vhost_set_vring_base(struct vhost_device_ctx, struct vhost_vring_state *);
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int vhost_get_vring_base(struct vhost_device_ctx,
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uint32_t, struct vhost_vring_state *);
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int vhost_set_vring_kick(struct vhost_device_ctx, struct vhost_vring_file *);
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int vhost_set_vring_call(struct vhost_device_ctx, struct vhost_vring_file *);
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int vhost_set_backend(struct vhost_device_ctx, struct vhost_vring_file *);
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int vhost_set_owner(struct vhost_device_ctx);
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int vhost_reset_owner(struct vhost_device_ctx);
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/*
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* Backend-specific cleanup. Defined by vhost-cuse and vhost-user.
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*/
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void vhost_backend_cleanup(struct virtio_net *dev);
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#endif /* _VHOST_NET_CDEV_H_ */
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