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 48 int rdma_registration_handle(QEMUFile *f) { return 0; } 49 static inline 50 int rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; } 51 static inline 52 int rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; } 53 static inline 54 int rdma_block_notification_handle(QEMUFile *f, const char *name) { return 0; } 55 static inline 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