Thread (96 messages) 96 messages, 5 authors, 2022-08-01

RE: [PATCH V3 3/6] vDPA: allow userspace to query features of a vDPA device

From: Parav Pandit <hidden>
Date: 2022-07-06 02:28:11
Also in: virtualization

From: Zhu, Lingshan <redacted>
Sent: Tuesday, July 5, 2022 10:25 PM
1. When migrate the VM to a node which has a more resourceful device. If
the source side device does not have MQ, RSS or TSO feature, the vDPA
device assigned to the VM does not have MQ, RSS or TSO as well. When
migrating to a node which has a device with MQ, RSS or TSO, to provide a
consistent network device to the guest, to be transparent to the guest, we
need to mask out MQ, RSS or TSO in the vDPA device when provisioning.
This is an example that management device may have different feature bits
than the vDPA device.
Yes. Right. 
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