projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| e1a3ecee JQ |
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 | ||
| 3fa9642f HG |
17 | #include "qemu/sockets.h" |
| 18 | ||
| e1a3ecee JQ |
19 | #ifndef QEMU_MIGRATION_RDMA_H |
| 20 | #define QEMU_MIGRATION_RDMA_H | |
| 21 | ||
| e493008d JQ |
22 | #include "exec/memory.h" |
| 23 | ||
| 3fa9642f | 24 | void rdma_start_outgoing_migration(void *opaque, InetSocketAddress *host_port, |
| e1a3ecee JQ |
25 | Error **errp); |
| 26 | ||
| 3fa9642f | 27 | void rdma_start_incoming_migration(InetSocketAddress *host_port, Error **errp); |
| e1a3ecee | 28 | |
| 10cb3336 JQ |
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 | /* | |
| 37 | * Whenever this is found in the data stream, the flags | |
| 38 | * will be passed to rdma functions in the incoming-migration | |
| 39 | * side. | |
| 40 | */ | |
| 41 | #define RAM_SAVE_FLAG_HOOK 0x80 | |
| 42 | ||
| 43 | #define RAM_SAVE_CONTROL_NOT_SUPP -1000 | |
| 44 | #define RAM_SAVE_CONTROL_DELAYED -2000 | |
| 48408174 JQ |
45 | |
| 46 | #ifdef CONFIG_RDMA | |
| b1b38387 JQ |
47 | int rdma_registration_handle(QEMUFile *f); |
| 48 | int rdma_registration_start(QEMUFile *f, uint64_t flags); | |
| 49 | int rdma_registration_stop(QEMUFile *f, uint64_t flags); | |
| a6323300 | 50 | int rdma_block_notification_handle(QEMUFile *f, const char *name); |
| e493008d JQ |
51 | int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset, |
| 52 | ram_addr_t offset, size_t size); | |
| 48408174 JQ |
53 | #else |
| 54 | static inline | |
| b1b38387 | 55 | int rdma_registration_handle(QEMUFile *f) { return 0; } |
| f6d6c089 | 56 | static inline |
| b1b38387 | 57 | int rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; } |
| 5f5b8858 | 58 | static inline |
| b1b38387 | 59 | int rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; } |
| a6323300 JQ |
60 | static inline |
| 61 | int rdma_block_notification_handle(QEMUFile *f, const char *name) { return 0; } | |
| e493008d JQ |
62 | static inline |
| 63 | int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset, | |
| 64 | ram_addr_t offset, size_t size) | |
| 65 | { | |
| 66 | return RAM_SAVE_CONTROL_NOT_SUPP; | |
| 67 | } | |
| 48408174 | 68 | #endif |
| e1a3ecee | 69 | #endif |