As the links [1][2] below stated, QEMU development community is currently
having some difficulties in maintaining the RDMA migration subsystem due
to the lack of resources (maintainers, test cases, test environment etc.)
and considering to deprecate it.

According to our user experience in the recent two years, we observed that
RDMA is capable of providing higher migration speed and lower performance
impact to a running VM, which can significantly improve the end-user's
experience during the VM live migration. We believe that RDMA still plays
a key role for the QoS and can't yet be replaced by TCP/IP for VM migration
at the moment.

Jinpu Wang is the upstream maintainer of RNBD/RTRS. He is experienced in
RDMA programming, and Yu Zhang maintains the downstream QEMU for IONOS
cloud in production.

With the consent and supports from Michael Galaxy, who has developed this
feature for QEMU, we would like to take over the maintainer's role and
create the necessary resources to maintain it further for the community.

[1] https://mail.gnu.org/archive/html/qemu-devel/2024-04/msg00001.html
[2] https://mail.gnu.org/archive/html/qemu-devel/2024-04/msg00228.html

Signed-off-by: Yu Zhang <yu.zhang@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Michael Galaxy <mgalaxy@akamai.com>
Cc: Li Zhijian <lizhijian@fujitsu.com>
Cc: Peter Xu <peterx@redhat.com>
---
 MAINTAINERS | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index f1f692202519..fa9c62aae3e1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3425,7 +3425,10 @@ F: util/userfaultfd.c
 X: migration/rdma*
 
 RDMA Migration
+R: Yu Zhang <yu.zhang@ionos.com>
+R: Jack Wang <jack.wang@ionos.com>
 R: Li Zhijian <lizhijian@fujitsu.com>
+R: Michael Galaxy <mgalaxy@akamai.com>
 R: Peter Xu <peterx@redhat.com>
 S: Odd Fixes
 F: migration/rdma*
-- 
2.34.1

Hi,

On 2/5/24 09:44, Yu Zhang wrote:
> As the links [1][2] below stated, QEMU development community is currently
> having some difficulties in maintaining the RDMA migration subsystem due
> to the lack of resources (maintainers, test cases, test environment etc.)
> and considering to deprecate it.
> 
> According to our user experience in the recent two years, we observed that
> RDMA is capable of providing higher migration speed and lower performance
> impact to a running VM, which can significantly improve the end-user's
> experience during the VM live migration. We believe that RDMA still plays
> a key role for the QoS and can't yet be replaced by TCP/IP for VM migration
> at the moment.
> 
> Jinpu Wang is the upstream maintainer of RNBD/RTRS. He is experienced in
> RDMA programming, and Yu Zhang maintains the downstream QEMU for IONOS
> cloud in production.
> 
> With the consent and supports from Michael Galaxy, who has developed this
> feature for QEMU, we would like to take over the maintainer's role and
> create the necessary resources to maintain it further for the community.
> 
> [1] https://mail.gnu.org/archive/html/qemu-devel/2024-04/msg00001.html
> [2] https://mail.gnu.org/archive/html/qemu-devel/2024-04/msg00228.html
> 
> Signed-off-by: Yu Zhang <yu.zhang@ionos.com>
> Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
> Reviewed-by: Michael Galaxy <mgalaxy@akamai.com>
> Cc: Li Zhijian <lizhijian@fujitsu.com>
> Cc: Peter Xu <peterx@redhat.com>
> ---
>   MAINTAINERS | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f1f692202519..fa9c62aae3e1 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3425,7 +3425,10 @@ F: util/userfaultfd.c
>   X: migration/rdma*
>   
>   RDMA Migration
> +R: Yu Zhang <yu.zhang@ionos.com>
> +R: Jack Wang <jack.wang@ionos.com>

I'm getting:

   Your message wasn't delivered to jack.wang@ionos.com because
   the address couldn't be found or is unable to receive email.

   The response from the remote server was:

   550 unrouteable address

In 
https://lore.kernel.org/qemu-devel/CAHEcVy50AtvDyCjwPa9Hu+x1wiUF6xf5McGOTHL+wdt3WN3pgA@mail.gmail.com/
you added:
   Jinpu Wang <jinpu.wang@ionos.com>
   Elmar Gerdes <elmar.gerdes@ionos.com>

Please correct the email address you want, otherwise,
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>

>   R: Li Zhijian <lizhijian@fujitsu.com>
> +R: Michael Galaxy <mgalaxy@akamai.com>
>   R: Peter Xu <peterx@redhat.com>
>   S: Odd Fixes
>   F: migration/rdma*