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On some environments, such as certain SR-IOV VF configurations, RoCE isn't supported for mlx4 Ethernet ports. Currently the driver will not open IB device on that port. This is problematic since we do want user-space RAW Ethernet QPs functionality to remain in place. For that end, enhance the relevant driver flows such that we do create a device instance in that case. Signed-off-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>