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2022-01-28multifd: Rename pages_used to normal_pagesJuan Quintela1-1/+2
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-01-28multifd: recv side only needs the RAMBlock host addressJuan Quintela1-2/+2
So we can remove the MultiFDPages. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-01-28multifd: Use normal pages array on the recv sideJuan Quintela1-2/+6
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> --- Rename num_normal_pages to total_normal_pages (peter)
2022-01-28multifd: Use normal pages array on the send sideJuan Quintela1-2/+6
We are only sending normal pages through multifd channels. Later on this series, we are going to also send zero pages. We are going to detect if a page is zero or non zero in the multifd channel thread, not on the main thread. So we receive an array of pages page->offset[N] And we will end with: p->normal[N - zero_pages] p->zero[zero_pages]. In this patch, we just copy all the pages in offset to normal. for (i = 0; i < pages->num; i++) { p->narmal[p->normal_num] = pages->offset[i]; p->normal_num++: } Later in the series this becomes: for (i = 0; i < pages->num; i++) { if (buffer_is_zero(page->offset[i])) { p->zerol[p->zero_num] = pages->offset[i]; p->zero_num++: } else { p->narmal[p->normal_num] = pages->offset[i]; p->normal_num++: } } Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> --- Improving comment (dave) Renaming num_normal_pages to total_normal_pages (peter)
2022-01-28multifd: Remove send_write() methodJuan Quintela1-2/+0
Everything use now iov's. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-01-28multifd: Move iov from pages to paramsJuan Quintela1-2/+6
This will allow us to reduce the number of system calls on the next patch. Signed-off-by: Juan Quintela <quintela@redhat.com>
2021-12-15multifd: remove used parameter from send_recv_pages() methodJuan Quintela1-1/+1
It is already there as p->pages->num. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-12-15multifd: remove used parameter from send_prepare() methodJuan Quintela1-1/+1
It is already there as p->pages->num. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-12-15multifd: Rename used field to numJuan Quintela1-1/+1
We will need to split it later in zero_num (number of zero pages) and normal_num (number of normal pages). This name is better. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-10-19migration: allow multifd for socket protocol onlyLi Zhijian1-0/+2
To: <quintela@redhat.com>, <dgilbert@redhat.com>, <qemu-devel@nongnu.org> CC: Li Zhijian <lizhijian@cn.fujitsu.com> Date: Sat, 31 Jul 2021 22:05:51 +0800 (5 weeks, 4 days, 17 hours ago) multifd with unsupported protocol will cause a segment fault. (gdb) bt #0 0x0000563b4a93faf8 in socket_connect (addr=0x0, errp=0x7f7f02675410) at ../util/qemu-sockets.c:1190 #1 0x0000563b4a797a03 in qio_channel_socket_connect_sync (ioc=0x563b4d16e8c0, addr=0x0, errp=0x7f7f02675410) at ../io/channel-socket.c:145 #2 0x0000563b4a797abf in qio_channel_socket_connect_worker (task=0x563b4cd86c30, opaque=0x0) at ../io/channel-socket.c:168 #3 0x0000563b4a792631 in qio_task_thread_worker (opaque=0x563b4cd86c30) at ../io/task.c:124 #4 0x0000563b4a91da69 in qemu_thread_start (args=0x563b4c44bb80) at ../util/qemu-thread-posix.c:541 #5 0x00007f7fe9b5b3f9 in ?? () #6 0x0000000000000000 in ?? () It's enough to check migrate_multifd_is_allowed() in multifd cleanup() and multifd setup() though there are so many other places using migrate_use_multifd(). Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2021-10-19multifd: Implement yank for multifd send sideLukas Straub1-0/+2
To: qemu-devel <qemu-devel@nongnu.org> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Juan Quintela <quintela@redhat.com>, Peter Xu <peterx@redhat.com>, Leonardo Bras Soares Passos <lsoaresp@redhat.com> Date: Wed, 1 Sep 2021 17:58:57 +0200 (1 week, 15 hours, 17 minutes ago) [[PGP Signed Part:No public key for 35AB0B289C5DB258 created at 2021-09-01T17:58:57+0200 using RSA]] When introducing yank functionality in the migration code I forgot to cover the multifd send side. Signed-off-by: Lukas Straub <lukasstraub2@web.de> Tested-by: Leonardo Bras <leobras@redhat.com> Reviewed-by: Leonardo Bras <leobras@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-09-25migration/tls: add tls_hostname into MultiFDSendParamsChuan Zheng1-0/+2
Since multifd creation is async with migration_channel_connect, we should pass the hostname from MigrationState to MultiFDSendParams. Signed-off-by: Chuan Zheng <zhengchuan@huawei.com> Signed-off-by: Yan Jin <jinyan12@huawei.com> Message-Id: <1600139042-104593-4-git-send-email-zhengchuan@huawei.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-28multifd: Add zstd compression multifd supportJuan Quintela1-0/+1
Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-28multifd: Add zlib compression multifd supportJuan Quintela1-0/+4
Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-28multifd: Make no compression operations into its own structureJuan Quintela1-0/+26
It will be used later. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> --- No comp value needs to be zero.
2020-01-29multifd: Split multifd code into its own fileJuan Quintela1-0/+139
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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