On 08/07/2020 12:41, liweihang wrote: > Hi all, > > I'm a little confused about the role of IB_QP_CUR_STATE in the enumeration > ib_qp_attr_mask. > > In manual page of ibv_modify_qp(), comments of cur_qp_state is "Assume this > is the current QP state". Why we need to get current qp state from users > instead of drivers? > > For example, why the users are allowed to modify qp from RTR to RTS again > even if the qp's state in driver and hardware has already been RTS. > > I would be appretiate it if someone can help with this. > > Weihang > Talking about IB_QP_CUR_STATE, I see many drivers filling it in their query QP callback although it should only be used in modify operations.. Is there a reason not to remove it?
