On Mon, Nov 19, 2018 at 08:16:37AM -0800, Bart Van Assche wrote: > On Mon, 2018-11-19 at 10:45 -0500, Chuck Lever wrote: > > FMR is not supported on most recent RDMA devices. It is also slower > > and less secure than FRWR. As discussed during the RDMA BoF at LPC > > 2018, it is time to remove support for FMR in the NFS/RDMA client > > stack. NFS/RDMA server-side uses either local memory registration or > > FRWR. There is no change required there to deprecate FMR. > > > > There are a few Infiniband/RoCE devices in the kernel tree that do > > not support MEM_MGT_EXTENSIONS, and therefore will no longer support > > client-side NFS/RDMA. These are: > > > > - mthca > > - qib > > - usnic > > - hns (RoCE) > > Can someone from Intel comment on how many of their customers rely on the qib > driver? > > Can someone from Cisco comment on how many of their customers rely on the usnic > driver? > > Can someone from Huawei comment on how many of their customers rely on the hns > driver? > > I'm wondering whether I can remove FMR support from the SRP initiator driver. Bart, The more accurate question is "how many customers ... use latest, upstream kernel?" Thanks > > Thanks, > > Bart.
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