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multifd: Add multifd-compression parameter

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This will store the compression method to use.  We start with none.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

---

Rename multifd-method to multifd-compression
This commit is contained in:
Juan Quintela 2019-01-16 10:35:55 +01:00
parent 8b6b68e05b
commit 96eef04238
6 changed files with 80 additions and 7 deletions
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30
qapi/migration.json
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@ -488,6 +488,19 @@
##
{ 'command': 'query-migrate-capabilities', 'returns': ['MigrationCapabilityStatus']}
##
# @MultiFDCompression:
#
# An enumeration of multifd compression methods.
#
# @none: no compression.
#
# Since: 5.0
#
##
{ 'enum': 'MultiFDCompression',
'data': [ 'none' ] }
##
# @MigrationParameter:
#
@ -586,6 +599,9 @@
# @max-cpu-throttle: maximum cpu throttle percentage.
# Defaults to 99. (Since 3.1)
#
# @multifd-compression: Which compression method to use.
# Defaults to none. (Since 5.0)
#
# Since: 2.4
##
{ 'enum': 'MigrationParameter',
@ -598,7 +614,7 @@
'downtime-limit', 'x-checkpoint-delay', 'block-incremental',
'multifd-channels',
'xbzrle-cache-size', 'max-postcopy-bandwidth',
'max-cpu-throttle' ] }
'max-cpu-throttle', 'multifd-compression' ] }
##
# @MigrateSetParameters:
@ -688,6 +704,9 @@
# @max-cpu-throttle: maximum cpu throttle percentage.
# The default value is 99. (Since 3.1)
#
# @multifd-compression: Which compression method to use.
# Defaults to none. (Since 5.0)
#
# Since: 2.4
##
# TODO either fuse back into MigrationParameters, or make
@ -713,7 +732,8 @@
'*multifd-channels': 'int',
'*xbzrle-cache-size': 'size',
'*max-postcopy-bandwidth': 'size',
'*max-cpu-throttle': 'int' } }
'*max-cpu-throttle': 'int',
'*multifd-compression': 'MultiFDCompression' } }
##
# @migrate-set-parameters:
@ -823,6 +843,9 @@
# Defaults to 99.
# (Since 3.1)
#
# @multifd-compression: Which compression method to use.
# Defaults to none. (Since 5.0)
#
# Since: 2.4
##
{ 'struct': 'MigrationParameters',
@ -846,7 +869,8 @@
'*multifd-channels': 'uint8',
'*xbzrle-cache-size': 'size',
'*max-postcopy-bandwidth': 'size',
'*max-cpu-throttle':'uint8'} }
'*max-cpu-throttle': 'uint8',
'*multifd-compression': 'MultiFDCompression' } }
##
# @query-migrate-parameters: