On Tue, May 17, 2022 at 02:04:29AM -0700, longli@xxxxxxxxxxxxxxxxx wrote: > From: Long Li <longli@xxxxxxxxxxxxx> > > The system chooses default 64K page size if the device does not specify > the max page size the device can handle for DMA. This do not work well > when device is registering large chunk of memory in that a large page size > is more efficient. > > Set it to the maximum hardware supported page size. For RDMA devices this should be set to the largest segment size an ib_sge can take in when posting work. It should not be the page size of MR. 2M is a weird number for that, are you sure it is right? Jason
