> > In UFS host reset and restore path, before probe, we stop and start the host > controller once. After host controller is stopped, the pending requests, if any, > are cleared from the doorbell, but no completion IRQ would be raised due to the > hba is stopped. > These pending requests shall be completed along with the first NOP_OUT > command(as it is the first command which can raise a transfer completion > IRQ) sent during probe. Hi, Can I am not sure for this point, because there is HW/SW device reset before or after host reset/restore. Device HW/SW reset also will clear the pended tasks in device side. That will be better. I think Qcom platform already enabled HW reset. //Bean > Since the OCSs of these pending requests are not SUCCESS(because they are not > yet literally finished), their UPIUs shall be dumped. When there are multiple > pending requests, the UPIU dump can be overwhelming and may lead to stability > issues because it is in atomic context. > Therefore, before probe, complete these pending requests right after host > controller is stopped.
