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/*
* RDMA protocol and interfaces
*
* Copyright IBM, Corp. 2010-2013
* Copyright Red Hat, Inc. 2015-2016
*
* Authors:
* Michael R. Hines <mrhines@us.ibm.com>
* Jiuxing Liu <jl@us.ibm.com>
* Daniel P. Berrange <berrange@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* later. See the COPYING file in the top-level directory.
*
*/
#include "qemu/sockets.h"
#ifndef QEMU_MIGRATION_RDMA_H
#define QEMU_MIGRATION_RDMA_H
#include "exec/memory.h"
void rdma_start_outgoing_migration(void *opaque, InetSocketAddress *host_port,
Error **errp);
void rdma_start_incoming_migration(InetSocketAddress *host_port, Error **errp);
/*
* Constants used by rdma return codes
*/
#define RAM_CONTROL_SETUP 0
#define RAM_CONTROL_ROUND 1
#define RAM_CONTROL_FINISH 3
/*
* Whenever this is found in the data stream, the flags
* will be passed to rdma functions in the incoming-migration
* side.
*/
#define RAM_SAVE_FLAG_HOOK 0x80
#define RAM_SAVE_CONTROL_NOT_SUPP -1000
#define RAM_SAVE_CONTROL_DELAYED -2000
#ifdef CONFIG_RDMA
int rdma_registration_handle(QEMUFile *f);
int rdma_registration_start(QEMUFile *f, uint64_t flags);
int rdma_registration_stop(QEMUFile *f, uint64_t flags);
int rdma_block_notification_handle(QEMUFile *f, const char *name);
int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
ram_addr_t offset, size_t size);
#else
static inline
int rdma_registration_handle(QEMUFile *f) { return 0; }
static inline
int rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; }
static inline
int rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; }
static inline
int rdma_block_notification_handle(QEMUFile *f, const char *name) { return 0; }
static inline
int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
ram_addr_t offset, size_t size)
{
return RAM_SAVE_CONTROL_NOT_SUPP;
}
#endif
#endif
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