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Add public API for parallel compression method

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Add description for VIR_MIGRATE_PARAM_COMPRESSION, it will
be reused in choosing compression method during parallel migration.
Add public API VIR_MIGRATE_PARAM_COMPRESSION_ZLIB_LEVEL,
VIR_MIGRATE_PARAM_COMPRESSION_ZSTD_LEVEL for migration APIs
to support set compress level during parallel migration.

Signed-off-by: Jiang Jiacheng <jiangjiacheng@huawei.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Jiang Jiacheng 2023-02-24 17:27:10 +08:00 committed by Jiri Denemark
parent 5ee27c37e6
commit 150ae3e62b
1 changed files with 27 additions and 3 deletions
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30
include/libvirt/libvirt-domain.h
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@ -1270,9 +1270,11 @@ typedef enum {
* VIR_MIGRATE_PARAM_COMPRESSION: * VIR_MIGRATE_PARAM_COMPRESSION:
* *
* virDomainMigrate* params multiple field: name of the method used to * virDomainMigrate* params multiple field: name of the method used to
* compress migration traffic. Supported compression methods: xbzrle, mt. * compress migration traffic. Supported compression methods: xbzrle, mt,
* The parameter may be specified multiple times if more than one method * zlib, zstd. The parameter may be specified multiple times if more than
* should be used. * one method should be used. Not all combinations of compression methods
* and migration options may be allowed. Parallel migration of QEMU domains
* is only compatible with either zlib or zstd method.
* *
* Since: 1.3.4 * Since: 1.3.4
*/ */
@ -1319,6 +1321,28 @@ typedef enum {
*/ */
# define VIR_MIGRATE_PARAM_COMPRESSION_XBZRLE_CACHE "compression.xbzrle.cache" # define VIR_MIGRATE_PARAM_COMPRESSION_XBZRLE_CACHE "compression.xbzrle.cache"
/**
* VIR_MIGRATE_PARAM_COMPRESSION_ZLIB_LEVEL:
*
* virDomainMigrate* params field: the level of compression for zlib as
* VIR_TYPED_PARAM_INT. Accepted values are in range 0-9. 0 is no compression,
* 1 is maximum speed and 9 is maximum compression.
*
* Since: 9.1.0
*/
# define VIR_MIGRATE_PARAM_COMPRESSION_ZLIB_LEVEL "compression.zlib.level"
/**
* VIR_MIGRATE_PARAM_COMPRESSION_ZSTD_LEVEL:
*
* virDomainMigrate* params field: the level of compression for zstd as
* VIR_TYPED_PARAM_INT. Accepted values are in range 0-20. 0 is no compression,
* 1 is maximum speed and 20 is maximum compression.
*
* Since: 9.1.0
*/
# define VIR_MIGRATE_PARAM_COMPRESSION_ZSTD_LEVEL "compression.zstd.level"
/** /**
* VIR_MIGRATE_PARAM_AUTO_CONVERGE_INITIAL: * VIR_MIGRATE_PARAM_AUTO_CONVERGE_INITIAL:
* *