[PATCH RFC 01/12] migration: Add multiRDMA capability support

[Zhimin Feng <fengzhimin1@huawei.com>]

From: fengzhimin <fengzhimin1@huawei.com>

Signed-off-by: fengzhimin <fengzhimin1@huawei.com>
---
 migration/migration.c | 11 +++++++++++
 migration/migration.h |  1 +
 qapi/migration.json   |  4 +++-
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/migration/migration.c b/migration/migration.c
index 354ad072fa..e98e236ef9 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2176,6 +2176,15 @@ bool migrate_use_events(void)
     return s->enabled_capabilities[MIGRATION_CAPABILITY_EVENTS];
 }
 
+bool migrate_use_multiRDMA(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->enabled_capabilities[MIGRATION_CAPABILITY_MULTIRDMA];
+}
+
 bool migrate_use_multifd(void)
 {
     MigrationState *s;
@@ -3509,6 +3518,8 @@ static Property migration_properties[] = {
     DEFINE_PROP_MIG_CAP("x-block", MIGRATION_CAPABILITY_BLOCK),
     DEFINE_PROP_MIG_CAP("x-return-path", MIGRATION_CAPABILITY_RETURN_PATH),
     DEFINE_PROP_MIG_CAP("x-multifd", MIGRATION_CAPABILITY_MULTIFD),
+    DEFINE_PROP_MIG_CAP("x-multirdma",
+                        MIGRATION_CAPABILITY_MULTIRDMA),
 
     DEFINE_PROP_END_OF_LIST(),
 };
diff --git a/migration/migration.h b/migration/migration.h
index 79b3dda146..bb488028a6 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -296,6 +296,7 @@ bool migrate_ignore_shared(void);
 bool migrate_validate_uuid(void);
 
 bool migrate_auto_converge(void);
+bool migrate_use_multiRDMA(void);
 bool migrate_use_multifd(void);
 bool migrate_pause_before_switchover(void);
 int migrate_multifd_channels(void);
diff --git a/qapi/migration.json b/qapi/migration.json
index b7348d0c8b..c995ffdc4c 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -421,6 +421,8 @@
 # @validate-uuid: Send the UUID of the source to allow the destination
 #                 to ensure it is the same. (since 4.2)
 #
+# @multirdma: Use more than one channels for rdma migration. (since 4.2)
+#
 # Since: 1.2
 ##
 { 'enum': 'MigrationCapability',
@@ -428,7 +430,7 @@
            'compress', 'events', 'postcopy-ram', 'x-colo', 'release-ram',
            'block', 'return-path', 'pause-before-switchover', 'multifd',
            'dirty-bitmaps', 'postcopy-blocktime', 'late-block-activate',
-           'x-ignore-shared', 'validate-uuid' ] }
+           'x-ignore-shared', 'validate-uuid', 'multirdma' ] }
 
 ##
 # @MigrationCapabilityStatus:
-- 
2.19.1