Re: [PATCH rdma-next 09/15] vfio/mlx5: Enable relaxed ordering on the live migration data mkey
Jason Gunthorpe <[email protected]>
| Newsgroups | org.kernel.vger.linux-rdma,org.kernel.vger.kvm,org.kernel.vger.linux-kernel,org.kernel.vger.netdev |
|---|---|
| Message-ID | <178647669515.282103.2847201847360648277.b4-review@b4> |
On Sun, 26 Jul 2026 12:29:23 +0300, Michael Gur <[email protected]> wrote: > As firmware guarantees that all device-issued data writes complete before > posting of CQE, there is no need for strong ordering of memory accesses > on the live migration data mkey. > Enable relaxed ordering on the mkey via the mlx5_core RO setter. > > This allows better performance and supporting vfio live migration on HW > that restricts memory registration with strict ordering. > > [...] Reviewed-by: Jason Gunthorpe <[email protected]> -- Jason