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