From patchwork Fri Apr 12 05:52:06 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: mrhines@linux.vnet.ibm.com X-Patchwork-Id: 235973 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 0F49B2C0089 for ; Fri, 12 Apr 2013 16:07:43 +1000 (EST) Received: from localhost ([::1]:37914 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UQWx9-0000rt-R1 for incoming@patchwork.ozlabs.org; Fri, 12 Apr 2013 01:55:15 -0400 Received: from eggs.gnu.org ([208.118.235.92]:52842) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UQWur-0006bl-6K for qemu-devel@nongnu.org; Fri, 12 Apr 2013 01:52:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UQWun-00082B-2C for qemu-devel@nongnu.org; Fri, 12 Apr 2013 01:52:53 -0400 Received: from e39.co.us.ibm.com ([32.97.110.160]:39558) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UQWum-00081u-RR for qemu-devel@nongnu.org; Fri, 12 Apr 2013 01:52:48 -0400 Received: from /spool/local by e39.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Hines" This capability allows you to disable dynamic chunk registration for better throughput on high-performance links. It is enabled by default. Signed-off-by: Michael R. Hines --- migration.c | 11 ++++++++++- qapi-schema.json | 2 +- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/migration.c b/migration.c index 3b4b467..b46e103 100644 --- a/migration.c +++ b/migration.c @@ -66,6 +66,7 @@ MigrationState *migrate_get_current(void) .state = MIG_STATE_SETUP, .bandwidth_limit = MAX_THROTTLE, .xbzrle_cache_size = DEFAULT_MIGRATE_CACHE_SIZE, + .enabled_capabilities[MIGRATION_CAPABILITY_CHUNK_REGISTER_DESTINATION] = true, }; return ¤t_migration; @@ -120,7 +121,6 @@ void process_incoming_migration(QEMUFile *f) Coroutine *co = qemu_coroutine_create(process_incoming_migration_co); int fd = qemu_get_fd(f); - assert(fd != -1); qemu_set_nonblock(fd); qemu_coroutine_enter(co, f); } @@ -474,6 +474,15 @@ void qmp_migrate_set_downtime(double value, Error **errp) max_downtime = (uint64_t)value; } +bool migrate_chunk_register_destination(void) +{ + MigrationState *s; + + s = migrate_get_current(); + + return s->enabled_capabilities[MIGRATION_CAPABILITY_CHUNK_REGISTER_DESTINATION]; +} + int migrate_use_xbzrle(void) { MigrationState *s; diff --git a/qapi-schema.json b/qapi-schema.json index db542f6..7fe7e5c 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -602,7 +602,7 @@ # Since: 1.2 ## { 'enum': 'MigrationCapability', - 'data': ['xbzrle'] } + 'data': ['xbzrle', 'chunk_register_destination'] } ## # @MigrationCapabilityStatus