* Srivatsa Vaddagiri <quic_svadd...@quicinc.com> [2021-08-18 11:43:05]:
> * Jason Wang <jasow...@redhat.com> [2021-08-18 14:04:04]: > > > > Fine let me take a stab at the next version which will have this: > > > > > > * Introduce a status bit for device to indicate "reset in progress". This > > > could > > > be adopted by other transports also (for ex PCI). > > > > I may miss something discussion but any reason that the current > > VIRTIO_MMIO_STATUS is not sufficient? > > I think Mike suggested we specify what device would return while reset is in > progress, rather than any arbitrary non-zero value: > > https://lists.oasis-open.org/archives/virtio-dev/202108/msg00070.html > > > > * For v3 MMIO devices, driver, after initiating reset, should wait until > > > status = 0 or device indicates "failure". What the driver does when it > > > sees > > > failure can be implementation defined (it can give up or try reset few > > > more > > > times) > > > > Yes, but let's wait a little bit to see if it is agreed by others. > > Sure. Does anyone disagree with above approach to go with MMIO version change to handle the reset issue? I can send the next version based on it and addressing various comments received so far. > Mike, > Do you suggest we add this as well for v3 device? > > "after writing 0 to Status and before reading any fields, the driver > MUST read Status and wait for a read to return 0 or indicate failure" - vatsa -- Qualcomm Innovation Center, Inc. is submitting the attached "feedback" as a non-member to the virtio-dev mailing list for consideration and inclusion. --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org
