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3fa9642ff7
RDMA based transport backend for 'migrate'/'migrate-incoming' QAPIs accept new wire protocol of MigrateAddress struct. It is achived by parsing 'uri' string and storing migration parameters required for RDMA connection into well defined InetSocketAddress struct. Suggested-by: Aravind Retnakaran <aravind.retnakaran@nutanix.com> Signed-off-by: Het Gala <het.gala@nutanix.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20231023182053.8711-7-farosas@suse.de>
70 lines
2 KiB
C
70 lines
2 KiB
C
/*
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* RDMA protocol and interfaces
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*
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* Copyright IBM, Corp. 2010-2013
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* Copyright Red Hat, Inc. 2015-2016
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*
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* Authors:
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* Michael R. Hines <mrhines@us.ibm.com>
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* Jiuxing Liu <jl@us.ibm.com>
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* Daniel P. Berrange <berrange@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/sockets.h"
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#ifndef QEMU_MIGRATION_RDMA_H
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#define QEMU_MIGRATION_RDMA_H
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#include "exec/memory.h"
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void rdma_start_outgoing_migration(void *opaque, InetSocketAddress *host_port,
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Error **errp);
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void rdma_start_incoming_migration(InetSocketAddress *host_port, Error **errp);
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/*
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* Constants used by rdma return codes
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*/
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#define RAM_CONTROL_SETUP 0
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#define RAM_CONTROL_ROUND 1
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#define RAM_CONTROL_FINISH 3
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/*
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* Whenever this is found in the data stream, the flags
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* will be passed to rdma functions in the incoming-migration
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* side.
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*/
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#define RAM_SAVE_FLAG_HOOK 0x80
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#define RAM_SAVE_CONTROL_NOT_SUPP -1000
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#define RAM_SAVE_CONTROL_DELAYED -2000
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#ifdef CONFIG_RDMA
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int rdma_registration_handle(QEMUFile *f);
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int rdma_registration_start(QEMUFile *f, uint64_t flags);
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int rdma_registration_stop(QEMUFile *f, uint64_t flags);
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int rdma_block_notification_handle(QEMUFile *f, const char *name);
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int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
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ram_addr_t offset, size_t size);
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#else
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static inline
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int rdma_registration_handle(QEMUFile *f) { return 0; }
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static inline
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int rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; }
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static inline
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int rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; }
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static inline
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int rdma_block_notification_handle(QEMUFile *f, const char *name) { return 0; }
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static inline
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int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
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ram_addr_t offset, size_t size)
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{
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return RAM_SAVE_CONTROL_NOT_SUPP;
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}
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#endif
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#endif
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