On Mon, Oct 14, 2024 at 09:07:31PM +0800, Junxian Huang wrote: > From: Chengchang Tang <tangchengchang@xxxxxxxxxx> > > Mmap reset state to notify userspace about HW reset. The mmaped flag > hw_ready will be initiated to a non-zero value. When HW is reset, > the mmap page will be zapped and userspace will get a zero value of > hw_ready. This needs alot more explanation about *why* does userspace need this information and why is hns unique here. Usually when the HW is reset there are enough existing system calls that will start failing that a driver should not need to do something like this. Jason