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migration/multifd: add uadk compression framework

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Adds the skeleton to support uadk compression method.
Complete functionality will be added in subsequent patches.

Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Shameer Kolothum 2024-06-07 14:53:06 +01:00 • committed by Fabiano Rosas
parent cfc589a89b
commit f3d8bb759d
5 changed files with 29 additions and 4 deletions
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1
migration/meson.build
View file

@ -40,6 +40,7 @@ endif
system_ss.add(when: rdma, if_true: files('rdma.c'))
system_ss.add(when: zstd, if_true: files('multifd-zstd.c'))
system_ss.add(when: qpl, if_true: files('multifd-qpl.c'))
system_ss.add(when: uadk, if_true: files('multifd-uadk.c'))
specific_ss.add(when: 'CONFIG_SYSTEM_ONLY',
if_true: files('ram.c',

20
migration/multifd-uadk.c Normal file
View file

@ -0,0 +1,20 @@
/*
* Multifd UADK compression accelerator implementation
*
* Copyright (c) 2024 Huawei Technologies R & D (UK) Ltd
*
* Authors:
* Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qemu/module.h"
static void multifd_uadk_register(void)
{
/* noop for now */
}
migration_init(multifd_uadk_register);

5
migration/multifd.h
View file

@ -34,13 +34,14 @@ MultiFDRecvData *multifd_get_recv_data(void);
/* Multifd Compression flags */
#define MULTIFD_FLAG_SYNC (1 << 0)
/* We reserve 3 bits for compression methods */
#define MULTIFD_FLAG_COMPRESSION_MASK (7 << 1)
/* We reserve 4 bits for compression methods */
#define MULTIFD_FLAG_COMPRESSION_MASK (0xf << 1)
/* we need to be compatible. Before compression value was 0 */
#define MULTIFD_FLAG_NOCOMP (0 << 1)
#define MULTIFD_FLAG_ZLIB (1 << 1)
#define MULTIFD_FLAG_ZSTD (2 << 1)
#define MULTIFD_FLAG_QPL (4 << 1)
#define MULTIFD_FLAG_UADK (8 << 1)
/* This value needs to be a multiple of qemu_target_page_size() */
#define MULTIFD_PACKET_SIZE (512 * 1024)