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[PATCH v4 15/18] migration/rdma: only register the memory for multifd ch
From: |
Chuan Zheng |
Subject: |
[PATCH v4 15/18] migration/rdma: only register the memory for multifd channels |
Date: |
Wed, 3 Feb 2021 16:01:48 +0800 |
All data is sent by multifd Channels, so we only register its for
multifd channels and main channel don't register its.
Signed-off-by: Zhimin Feng <fengzhimin1@huawei.com>
Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
---
migration/rdma.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/migration/rdma.c b/migration/rdma.c
index c906cc7..f5eb563 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -3939,6 +3939,12 @@ static int qemu_rdma_registration_stop(QEMUFile *f, void
*opaque,
qemu_sem_post(&multifd_send_param->sem_sync);
}
+
+ /*
+ * Use multifd to migrate, we only register memory for
+ * multifd RDMA channel and main channel don't register it.
+ */
+ goto wait_reg_complete;
}
/*
@@ -3999,6 +4005,8 @@ static int qemu_rdma_registration_stop(QEMUFile *f, void
*opaque,
rdma->dest_blocks[i].remote_host_addr;
local->block[i].remote_rkey = rdma->dest_blocks[i].remote_rkey;
}
+
+wait_reg_complete:
/* Wait for all multifd channels to complete registration */
if (migrate_use_multifd()) {
int i;
--
1.8.3.1
- Re: [PATCH v4 12/18] migration/rdma: Create the multifd send channels for RDMA, (continued)
- [PATCH v4 13/18] migration/rdma: Add the function for dynamic page registration, Chuan Zheng, 2021/02/03
- [PATCH v4 11/18] migration/rdma: record host_port for multifd RDMA, Chuan Zheng, 2021/02/03
- [PATCH v4 07/18] migration/rdma: add rdma field into multifd send/recv param, Chuan Zheng, 2021/02/03
- [PATCH v4 02/18] migration/rdma: judge whether or not the RDMA is used for migration, Chuan Zheng, 2021/02/03
- [PATCH v4 03/18] migration/rdma: create multifd_setup_ops for Tx/Rx thread, Chuan Zheng, 2021/02/03
- [PATCH v4 15/18] migration/rdma: only register the memory for multifd channels,
Chuan Zheng <=
- [PATCH v4 06/18] migration/rdma: export MultiFDSendParams/MultiFDRecvParams, Chuan Zheng, 2021/02/03
- [PATCH v4 14/18] migration/rdma: register memory for multifd RDMA channels, Chuan Zheng, 2021/02/03
- [PATCH v4 08/18] migration/rdma: export getQIOChannel to get QIOchannel in rdma, Chuan Zheng, 2021/02/03
- [PATCH v4 10/18] migration/rdma: Create the multifd recv channels for RDMA, Chuan Zheng, 2021/02/03
- [PATCH v4 16/18] migration/rdma: add rdma_channel into Migrationstate field, Chuan Zheng, 2021/02/03