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Subject: Re: [PATCH v2] virtio-mmio: Specify wait needed in driver during reset
On Mon, Aug 16, 2021 at 10:27:18AM +0530, Srivatsa Vaddagiri wrote: > * Jason Wang <jasowang@redhat.com> [2021-08-16 10:10:56]: > > > > +After writing 0 to \field{Status}, which triggers a reset of device, the driver MUST wait for a read of > > > +\field{Status} to return 0 before proceeding with the remaining steps of initializing the device. > > > + > > > > Do we need to limit this behaviour to 0x3 only? > > I felt it will be simple for drivers to unconditionally poll for reset > completion (which is the right thing to do IMO), but can make it conditional to > version 3 only if you say so. > > - vatsa We can't make spec changes that declare all existing drivers non-conformant. > --- > > Qualcomm Innovation Center, Inc. is submitting the attached "feedback" as a > non-member to the virtio-dev mailing list for consideration and inclusion. >
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