RE: [PATCH] vhost: fix virtio blk vDPA live migration IO drop

2022-07-03 Thread Pei, Andy
HI Maxime, Thanks. > -Original Message- > From: Maxime Coquelin > Sent: Friday, July 1, 2022 9:55 PM > To: Pei, Andy ; dev@dpdk.org > Cc: Xia, Chenbo ; Xu, Rosen ; > Xiao, QimaiX > Subject: Re: [PATCH] vhost: fix virtio blk vDPA live migration IO drop > >

Re: [PATCH] vhost: fix virtio blk vDPA live migration IO drop

2022-07-01 Thread Maxime Coquelin
On 6/22/22 09:47, Andy Pei wrote: In the virtio blk vDPA live migration use case, before the live migration process, QEMU will set call fd to vDPA back-end. QEMU and vDPA back-end stand by until live migration starts. During live migration process, QEMU sets kick fd and a new call fd. However,

Re: [PATCH] vhost: fix virtio blk vDPA live migration IO drop

2022-07-01 Thread Maxime Coquelin
On 6/22/22 09:47, Andy Pei wrote: In the virtio blk vDPA live migration use case, before the live migration process, QEMU will set call fd to vDPA back-end. QEMU and vDPA back-end stand by until live migration starts. During live migration process, QEMU sets kick fd and a new call fd. However,