Hi Jason, > > What is the correct way for a user space application to check whether > > a NIC supports SEND_WITH_INVAL? We are currently examining the > > device_cap_flags in the structure returned by ibv_query_device. > > Specifically, we're looking at IBV_DEVICE_MEM_MGT_EXTENSIONS. > However, > > for i40iw, that flag is set. I'm concerned that the feature support > > flags are common between user space and the kernel, but the actual > support differs in this case. > > That is the correct thing to do. Sadly the i40iw driver is broken, it should be > fixed to either mask those flags or implement the functionality. > A fix to add SEND_WITH_INVAL support to the user space i40iw is coming. It is currently in regression testing. Thank you, Tatyana > Jason
