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  3. [PATCH v9 00/10] migration: Modify 'migrate' and 'migrate-incoming' QAPI commands for migration
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[PATCH v9 09/10] migration: Implement MigrateChannelList to hmp migration flow.

Het Gala posted 10 patches 2 years, 6 months ago
Maintainers: Juan Quintela <quintela@redhat.com>, Peter Xu <peterx@redhat.com>, Leonardo Bras <leobras@redhat.com>, Eric Blake <eblake@redhat.com>, Markus Armbruster <armbru@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Thomas Huth <thuth@redhat.com>, Laurent Vivier <lvivier@redhat.com>
There is a newer version of this series
[PATCH v9 09/10] migration: Implement MigrateChannelList to hmp migration flow.
Posted by Het Gala 2 years, 6 months ago 
Integrate MigrateChannelList with all transport backends
(socket, exec and rdma) for both src and dest migration
endpoints for hmp migration.

Suggested-by: Aravind Retnakaran <aravind.retnakaran@nutanix.com>
Signed-off-by: Het Gala <het.gala@nutanix.com>
---
 migration/migration-hmp-cmds.c | 16 +++++++++++++---
 migration/migration.c          |  5 ++---
 migration/migration.h          |  3 ++-
 3 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c
index 49b150f33f..25f51ec99c 100644
--- a/migration/migration-hmp-cmds.c
+++ b/migration/migration-hmp-cmds.c
@@ -423,10 +423,14 @@ void hmp_migrate_incoming(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
     const char *uri = qdict_get_str(qdict, "uri");
+    MigrationChannelList *caps = NULL;
+    g_autoptr(MigrationChannel) channel = g_new0(MigrationChannel, 1);
 
-    qmp_migrate_incoming(uri, false, NULL, &err);
+    migrate_uri_parse(uri, &channel, &err);
+    QAPI_LIST_PREPEND(caps, channel);
 
-    hmp_handle_error(mon, err);
+    qmp_migrate_incoming(NULL, true, caps, &err);
+    qapi_free_MigrationChannelList(caps);
 }
 
 void hmp_migrate_recover(Monitor *mon, const QDict *qdict)
@@ -704,9 +708,15 @@ void hmp_migrate(Monitor *mon, const QDict *qdict)
     bool resume = qdict_get_try_bool(qdict, "resume", false);
     const char *uri = qdict_get_str(qdict, "uri");
     Error *err = NULL;
+    MigrationChannelList *caps = NULL;
+    g_autoptr(MigrationChannel) channel = g_new0(MigrationChannel, 1);
+
+    migrate_uri_parse(uri, &channel, &err);
+    QAPI_LIST_PREPEND(caps, channel);
 
-    qmp_migrate(uri, false, NULL, !!blk, blk, !!inc, inc,
+    qmp_migrate(NULL, true, caps, !!blk, blk, !!inc, inc,
                  false, false, true, resume, &err);
+    qapi_free_MigrationChannelList(caps);
     if (hmp_handle_error(mon, err)) {
         return;
     }
diff --git a/migration/migration.c b/migration/migration.c
index acf80b3590..cf063a76df 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -425,9 +425,8 @@ void migrate_add_address(SocketAddress *address)
                       QAPI_CLONE(SocketAddress, address));
 }
 
-static bool migrate_uri_parse(const char *uri,
-                              MigrationChannel **channel,
-                              Error **errp)
+bool migrate_uri_parse(const char *uri, MigrationChannel **channel,
+                       Error **errp)
 {
     g_autoptr(MigrationChannel) val = g_new0(MigrationChannel, 1);
     g_autoptr(MigrationAddress) addr = g_new0(MigrationAddress, 1);
diff --git a/migration/migration.h b/migration/migration.h
index b7c8b67542..a8268394ca 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -501,7 +501,8 @@ bool check_dirty_bitmap_mig_alias_map(const BitmapMigrationNodeAliasList *bbm,
                                       Error **errp);
 
 void migrate_add_address(SocketAddress *address);
-
+bool migrate_uri_parse(const char *uri, MigrationChannel **channel,
+                       Error **errp);
 int foreach_not_ignored_block(RAMBlockIterFunc func, void *opaque);
 
 #define qemu_ram_foreach_block \
-- 
2.22.3
Re: [PATCH v9 09/10] migration: Implement MigrateChannelList to hmp migration flow.
Posted by Daniel P. Berrangé 2 years, 6 months ago 
On Fri, Jul 21, 2023 at 02:49:35PM +0000, Het Gala wrote:
> Integrate MigrateChannelList with all transport backends
> (socket, exec and rdma) for both src and dest migration
> endpoints for hmp migration.
> 
> Suggested-by: Aravind Retnakaran <aravind.retnakaran@nutanix.com>
> Signed-off-by: Het Gala <het.gala@nutanix.com>
> ---
>  migration/migration-hmp-cmds.c | 16 +++++++++++++---
>  migration/migration.c          |  5 ++---
>  migration/migration.h          |  3 ++-
>  3 files changed, 17 insertions(+), 7 deletions(-)
> 
> diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c
> index 49b150f33f..25f51ec99c 100644
> --- a/migration/migration-hmp-cmds.c
> +++ b/migration/migration-hmp-cmds.c
> @@ -423,10 +423,14 @@ void hmp_migrate_incoming(Monitor *mon, const QDict *qdict)
>  {
>      Error *err = NULL;
>      const char *uri = qdict_get_str(qdict, "uri");
> +    MigrationChannelList *caps = NULL;
> +    g_autoptr(MigrationChannel) channel = g_new0(MigrationChannel, 1);
>  
> -    qmp_migrate_incoming(uri, false, NULL, &err);
> +    migrate_uri_parse(uri, &channel, &err);
> +    QAPI_LIST_PREPEND(caps, channel);
>  
> -    hmp_handle_error(mon, err);
> +    qmp_migrate_incoming(NULL, true, caps, &err);
> +    qapi_free_MigrationChannelList(caps);

IIRC, you still need the hmp_handle_error call to print any
error message.

>  }
>  
>  void hmp_migrate_recover(Monitor *mon, const QDict *qdict)
> @@ -704,9 +708,15 @@ void hmp_migrate(Monitor *mon, const QDict *qdict)
>      bool resume = qdict_get_try_bool(qdict, "resume", false);
>      const char *uri = qdict_get_str(qdict, "uri");
>      Error *err = NULL;
> +    MigrationChannelList *caps = NULL;
> +    g_autoptr(MigrationChannel) channel = g_new0(MigrationChannel, 1);
> +
> +    migrate_uri_parse(uri, &channel, &err);
> +    QAPI_LIST_PREPEND(caps, channel);
>  
> -    qmp_migrate(uri, false, NULL, !!blk, blk, !!inc, inc,
> +    qmp_migrate(NULL, true, caps, !!blk, blk, !!inc, inc,
>                   false, false, true, resume, &err);
> +    qapi_free_MigrationChannelList(caps);
>      if (hmp_handle_error(mon, err)) {
>          return;
>      }
> diff --git a/migration/migration.c b/migration/migration.c
> index acf80b3590..cf063a76df 100644
> --- a/migration/migration.c
> +++ b/migration/migration.c
> @@ -425,9 +425,8 @@ void migrate_add_address(SocketAddress *address)
>                        QAPI_CLONE(SocketAddress, address));
>  }
>  
> -static bool migrate_uri_parse(const char *uri,
> -                              MigrationChannel **channel,
> -                              Error **errp)
> +bool migrate_uri_parse(const char *uri, MigrationChannel **channel,
> +                       Error **errp)
>  {
>      g_autoptr(MigrationChannel) val = g_new0(MigrationChannel, 1);
>      g_autoptr(MigrationAddress) addr = g_new0(MigrationAddress, 1);
> diff --git a/migration/migration.h b/migration/migration.h
> index b7c8b67542..a8268394ca 100644
> --- a/migration/migration.h
> +++ b/migration/migration.h
> @@ -501,7 +501,8 @@ bool check_dirty_bitmap_mig_alias_map(const BitmapMigrationNodeAliasList *bbm,
>                                        Error **errp);
>  
>  void migrate_add_address(SocketAddress *address);
> -
> +bool migrate_uri_parse(const char *uri, MigrationChannel **channel,
> +                       Error **errp);
>  int foreach_not_ignored_block(RAMBlockIterFunc func, void *opaque);
>  
>  #define qemu_ram_foreach_block \
> -- 
> 2.22.3
> 

With regards,
Daniel
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Re: [PATCH v9 09/10] migration: Implement MigrateChannelList to hmp migration flow.
Posted by Het Gala 2 years, 6 months ago 
On 26/07/23 12:45 am, Daniel P. Berrangé wrote:
> On Fri, Jul 21, 2023 at 02:49:35PM +0000, Het Gala wrote:
>> Integrate MigrateChannelList with all transport backends
>> (socket, exec and rdma) for both src and dest migration
>> endpoints for hmp migration.
>>
>> Suggested-by: Aravind Retnakaran <aravind.retnakaran@nutanix.com>
>> Signed-off-by: Het Gala <het.gala@nutanix.com>
>> ---
>>   migration/migration-hmp-cmds.c | 16 +++++++++++++---
>>   migration/migration.c          |  5 ++---
>>   migration/migration.h          |  3 ++-
>>   3 files changed, 17 insertions(+), 7 deletions(-)
>>
>> diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c
>> index 49b150f33f..25f51ec99c 100644
>> --- a/migration/migration-hmp-cmds.c
>> +++ b/migration/migration-hmp-cmds.c
>> @@ -423,10 +423,14 @@ void hmp_migrate_incoming(Monitor *mon, const QDict *qdict)
>>   {
>>       Error *err = NULL;
>>       const char *uri = qdict_get_str(qdict, "uri");
>> +    MigrationChannelList *caps = NULL;
>> +    g_autoptr(MigrationChannel) channel = g_new0(MigrationChannel, 1);
>>   
>> -    qmp_migrate_incoming(uri, false, NULL, &err);
>> +    migrate_uri_parse(uri, &channel, &err);
>> +    QAPI_LIST_PREPEND(caps, channel);
>>   
>> -    hmp_handle_error(mon, err);
>> +    qmp_migrate_incoming(NULL, true, caps, &err);
>> +    qapi_free_MigrationChannelList(caps);
> IIRC, you still need the hmp_handle_error call to print any
> error message.
Yes, sorry, I missed that out while adding the statements. Will add 
hmp_handle_error call here.
>>   }
>>   
>>   void hmp_migrate_recover(Monitor *mon, const QDict *qdict)
>> @@ -704,9 +708,15 @@ void hmp_migrate(Monitor *mon, const QDict *qdict)
>>       bool resume = qdict_get_try_bool(qdict, "resume", false);
>>       const char *uri = qdict_get_str(qdict, "uri");
>>       Error *err = NULL;
>> +    MigrationChannelList *caps = NULL;
>> +    g_autoptr(MigrationChannel) channel = g_new0(MigrationChannel, 1);
>> +
>> +    migrate_uri_parse(uri, &channel, &err);
>> +    QAPI_LIST_PREPEND(caps, channel);
>>   
>> -    qmp_migrate(uri, false, NULL, !!blk, blk, !!inc, inc,
>> +    qmp_migrate(NULL, true, caps, !!blk, blk, !!inc, inc,
>>                    false, false, true, resume, &err);
>> +    qapi_free_MigrationChannelList(caps);
>>       if (hmp_handle_error(mon, err)) {
>>           return;
>>       }
>> diff --git a/migration/migration.c b/migration/migration.c
>> index acf80b3590..cf063a76df 100644
>> --- a/migration/migration.c
>> +++ b/migration/migration.c
>> @@ -425,9 +425,8 @@ void migrate_add_address(SocketAddress *address)
>>                         QAPI_CLONE(SocketAddress, address));
>>   }
>>   
>> -static bool migrate_uri_parse(const char *uri,
>> -                              MigrationChannel **channel,
>> -                              Error **errp)
>> +bool migrate_uri_parse(const char *uri, MigrationChannel **channel,
>> +                       Error **errp)
>>   {
>>       g_autoptr(MigrationChannel) val = g_new0(MigrationChannel, 1);
>>       g_autoptr(MigrationAddress) addr = g_new0(MigrationAddress, 1);
>> diff --git a/migration/migration.h b/migration/migration.h
>> index b7c8b67542..a8268394ca 100644
>> --- a/migration/migration.h
>> +++ b/migration/migration.h
>> @@ -501,7 +501,8 @@ bool check_dirty_bitmap_mig_alias_map(const BitmapMigrationNodeAliasList *bbm,
>>                                         Error **errp);
>>   
>>   void migrate_add_address(SocketAddress *address);
>> -
>> +bool migrate_uri_parse(const char *uri, MigrationChannel **channel,
>> +                       Error **errp);
>>   int foreach_not_ignored_block(RAMBlockIterFunc func, void *opaque);
>>   
>>   #define qemu_ram_foreach_block \
>> -- 
>> 2.22.3
>>
> With regards,
> Daniel
Regards,
Het Gala

Patchew 2.1-devel-b67e4c2

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