Messages in this thread | | | From | "Nikolova, Tatyana E" <> | Subject | RE: [PATCH] rdma: move the ib_wr_opcode enum to include/uapi | Date | Wed, 19 Sep 2018 23:03:04 +0000 |
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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
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