18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_ciconfig RDMA_RXE 38c2ecf20Sopenharmony_ci tristate "Software RDMA over Ethernet (RoCE) driver" 48c2ecf20Sopenharmony_ci depends on INET && PCI && INFINIBAND 58c2ecf20Sopenharmony_ci depends on INFINIBAND_VIRT_DMA 68c2ecf20Sopenharmony_ci select NET_UDP_TUNNEL 78c2ecf20Sopenharmony_ci select CRYPTO 88c2ecf20Sopenharmony_ci select CRYPTO_CRC32 98c2ecf20Sopenharmony_ci help 108c2ecf20Sopenharmony_ci This driver implements the InfiniBand RDMA transport over 118c2ecf20Sopenharmony_ci the Linux network stack. It enables a system with a 128c2ecf20Sopenharmony_ci standard Ethernet adapter to interoperate with a RoCE 138c2ecf20Sopenharmony_ci adapter or with another system running the RXE driver. 148c2ecf20Sopenharmony_ci Documentation on InfiniBand and RoCE can be downloaded at 158c2ecf20Sopenharmony_ci www.infinibandta.org and www.openfabrics.org. (See also 168c2ecf20Sopenharmony_ci siw which is a similar software driver for iWARP.) 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci The driver is split into two layers, one interfaces with the 198c2ecf20Sopenharmony_ci Linux RDMA stack and implements a kernel or user space 208c2ecf20Sopenharmony_ci verbs API. The user space verbs API requires a support 218c2ecf20Sopenharmony_ci library named librxe which is loaded by the generic user 228c2ecf20Sopenharmony_ci space verbs API, libibverbs. The other layer interfaces 238c2ecf20Sopenharmony_ci with the Linux network stack at layer 3. 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci To configure and work with soft-RoCE driver please use the 268c2ecf20Sopenharmony_ci following wiki page under "configure Soft-RoCE (RXE)" section: 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md 29