This patch set implements a software emulation of RoCE or InfiniBand transport. It consists of two kernel modules. The first, ib_rxe, implements the RDMA transport and registers with the RDMA core as a kernel verbs provider. The second, ib_rxe_net or ib_sample, implement the packet IO layer. ib_rxe_net attaches to the Linux netdev stack as a network protocol and can send and receive packets over any Ethernet device. It uses the RoCE protocol to handle RDMA transport. ib_sample is a pure loopback device that uses the InfiniBand transport i.e. it includes the LRH header while RoCE only includes the GRH header.
The modules are configured by entries in /sys. There is a configuration script (rxe_cfg) that simplifies the use of this interface. Rxe_cfg is part of the rxe user space code, librxe. The use of rxe verbs in user space requires the inclusion of librxe as a device specific plug-in to libibverbs. Librxe is packaged separately. Copies of the user space library and tools for 'upstream' and a tar file of these patches are available at support.systemfabricworks.com/downloads/rxe. -- -- 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
