On Tue, Dec 22, 2015 at 03:50:12PM +0200, Sagi Grimberg wrote: > This is why I said that the problem here is not the ULPs. But if a new > HW comes along with distinction between rkeys and lkeys it will have a > problem. For example a HW allocates two different keys, rkey and lkey. > And, it chooses to fail SEND from a rkey, or incoming READ/WRITE to a > lkey. How can such a device be supported with an API that allows a > single key per MR?
The ULP decides if this MR is going to be used as a lkey or rkey by passing IB_REG_LKEY or IB_REG_RKEY. The HCA driver will then fill mr->key by the lkey or rkey based on that and everything will work fine. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
