On Wed, Sep 22, 2021 at 08:08:44PM +0800, Junji Wei wrote: > > On Sep 15, 2021, at 9:43 PM, Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: <...> > >> 4. The FRMR api need to set key of MR through IB_WR_REG_MR. > >> But it is impossible to change a key of mr using uverbs. > > > > FRMR is more like memory windows in user space, you can't support it > > using just regular MRs. > > It is hard to support this using uverbs, but it is easy to support > with uRDMA that we can get full control of mrs. What is uRDMA? Thanks