On Tue, Nov 21, 2017 at 01:16:43PM -0500, Don Dutile wrote: > >>I don't really think it is really too user visible.. Only the device > >>and port number change, but only if running in mixed mode. > > > >Ahh, correct me if I'm wrong, you are proposing to split mlx4_ib devices > >to two devices once it is configured in mixed mode, so everyone will > >have one port only. Did I understand you correctly? > Which would require splitting resources that are shared now? other > splitting issue(s)? A change like this would be almost transparent to most users. The cx3 card in mixed mode will look like a mlx5 card does: two single port RDMA devices. I think only a minimal amount of stuff is actually shared between ports, and as cx5 already demonstrates there isn't really a notable downside to having two kernel RDMA devices. Jason