On Mon, 2021-07-26 at 19:40 +0900, Chanho Park wrote: > > I don't understand here. how many doorbell registers you have now? > > and doesn VHs have a doorbell register also? and each doorbell > > register > > still supprts 32 tags? > > > A PH has its own doorbell register and each VHs also has it as well. > > The TASK_TAG[7:5] can be used to distinguish the origin of the > request among VHs and remaining TASK_TAG[4:0] will be used for > supporting 32 tags. > > > > Best Regards, > > Chanho Park Thanks for your reply. so you split the "Task Tag" filed byte3 in the UPIU header to two parts, bit7~bit5 is for the VHs ID, and bit4~bit0 is for the task ID. but this is not defined in the Spec 2.1. correct? Kind regards, Bean
