1 /*
2 * RDMA protocol and interfaces
3 *
4 * Copyright IBM, Corp. 2010-2013
5 * Copyright Red Hat, Inc. 2015-2016
6 *
7 * Authors:
8 * Michael R. Hines <mrhines@us.ibm.com>
9 * Jiuxing Liu <jl@us.ibm.com>
10 * Daniel P. Berrange <berrange@redhat.com>
11 *
12 * This work is licensed under the terms of the GNU GPL, version 2 or
13 * later. See the COPYING file in the top-level directory.
14 *
15 */
16
17 #include "qemu/sockets.h"
18
19 #ifndef QEMU_MIGRATION_RDMA_H
20 #define QEMU_MIGRATION_RDMA_H
21
22 #include "exec/memory.h"
23
24 void rdma_start_outgoing_migration(void *opaque, InetSocketAddress *host_port,
25 Error **errp);
26
27 void rdma_start_incoming_migration(InetSocketAddress *host_port, Error **errp);
28
29 /*
30 * Constants used by rdma return codes
31 */
32 #define RAM_CONTROL_SETUP 0
33 #define RAM_CONTROL_ROUND 1
34 #define RAM_CONTROL_FINISH 3
35
36 #define RAM_SAVE_CONTROL_NOT_SUPP -1000
37 #define RAM_SAVE_CONTROL_DELAYED -2000
38
39 #ifdef CONFIG_RDMA
40 int rdma_registration_handle(QEMUFile *f);
41 int rdma_registration_start(QEMUFile *f, uint64_t flags);
42 int rdma_registration_stop(QEMUFile *f, uint64_t flags);
43 int rdma_block_notification_handle(QEMUFile *f, const char *name);
44 int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
45 ram_addr_t offset, size_t size);
46 #else
47 static inline
rdma_registration_handle(QEMUFile * f)48 int rdma_registration_handle(QEMUFile *f) { return 0; }
49 static inline
rdma_registration_start(QEMUFile * f,uint64_t flags)50 int rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; }
51 static inline
rdma_registration_stop(QEMUFile * f,uint64_t flags)52 int rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; }
53 static inline
rdma_block_notification_handle(QEMUFile * f,const char * name)54 int rdma_block_notification_handle(QEMUFile *f, const char *name) { return 0; }
55 static inline
rdma_control_save_page(QEMUFile * f,ram_addr_t block_offset,ram_addr_t offset,size_t size)56 int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
57 ram_addr_t offset, size_t size)
58 {
59 return RAM_SAVE_CONTROL_NOT_SUPP;
60 }
61 #endif
62 #endif
63