On Mon, 2020-08-24 at 19:07 -0700, Can Guo wrote: > To recovery non-fatal errors, no full reset is required, err_handler only > clears those pending TRs/TMRs so that scsi layer can re-issue them. In > current err_handler, TRs are directly cleared from UFS host's doorbell but > not aborted from device side. However, according to the UFSHCI JEDEC spec, > the host software shall use UTP Transfer Request List CLear Register to > clear a task from UFS host's doorbell only when a UTP Transfer Request is > expected to not be completed, e.g. when the host software receives a > “FUNCTION COMPLETE” Task Management response which means a Transfer Request > was aborted. To follow the UFSHCI JEDEC spec, in err_handler, aborts one TR > before clearing it from doorbell. > > Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxx> Acked-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
