On 3/19/2023 11:44 PM, Jason Wang wrote:
On Fri, Mar 17, 2023 at 9:58 PM Parav Pandit <parav@xxxxxxxxxxxx> wrote:
From: Eli Cohen <elic@xxxxxxxxxx>
Sent: Wednesday, March 15, 2023 3:28 AM
Extend the possible list for features that can be supported by firmware.
Note that different versions of firmware may or may not support these
features. The driver is made aware of them by querying the firmware.
While doing this, improve the code so we use enum names instead of hard
coded numerical values.
The new features supported by the driver are the following:
VIRTIO_NET_F_MRG_RXBUF
VIRTIO_NET_F_HOST_UFO
UFO is deprecated in Linux kernel, there are no known user either and we do not plan to support it.
Note that there's an emulation code for preserving migration
compatibility in the kernel.
I wonder if there's a command line option to prohibit QEMU from saving
this host capability to the migration stream? If not I think it's a
nightmare every vendor has to support already-deprecated UFO in their
h/w device.
Thanks,
-Siwei
Please remove this entry along with below GUEST_UFO.
If there's no plan for supporting migration from existing software
backends, we can remove this.
Thanks
VIRTIO_NET_F_HOST_ECN
VIRTIO_NET_F_GUEST_UFO
VIRTIO_NET_F_GUEST_ECN
VIRTIO_NET_F_GUEST_TSO6
VIRTIO_NET_F_GUEST_TSO4
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