| 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 "system/memory.h" |
| 23 | |
| 24 | QIOChannel *rdma_connect_outgoing(void *opaque, InetSocketAddress *host_port, |
| 25 | Error **errp); |
| 26 | |
| 27 | void rdma_connect_incoming(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_DELAYED -2000 |
| 37 | |
| 38 | #ifdef CONFIG_RDMA |
| 39 | int rdma_registration_handle(QEMUFile *f); |
| 40 | int rdma_registration_start(QEMUFile *f, uint64_t flags); |
| 41 | int rdma_registration_stop(QEMUFile *f, uint64_t flags); |
| 42 | int rdma_block_notification_handle(QEMUFile *f, const char *name); |
| 43 | int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset, |
| 44 | ram_addr_t offset, size_t size); |
| 45 | #else |
| 46 | static inline |
| 47 | int rdma_registration_handle(QEMUFile *f) { return 0; } |
| 48 | static inline |
| 49 | int rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; } |
| 50 | static inline |
| 51 | int rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; } |
| 52 | static inline |
| 53 | int rdma_block_notification_handle(QEMUFile *f, const char *name) { return 0; } |
| 54 | static inline |
| 55 | int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset, |
| 56 | ram_addr_t offset, size_t size) |
| 57 | { |
| 58 | g_assert_not_reached(); |
| 59 | } |
| 60 | #endif |
| 61 | #endif |