162306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ciconfig RDMA_RXE 362306a36Sopenharmony_ci tristate "Software RDMA over Ethernet (RoCE) driver" 462306a36Sopenharmony_ci depends on INET && PCI && INFINIBAND 562306a36Sopenharmony_ci depends on INFINIBAND_VIRT_DMA 662306a36Sopenharmony_ci select NET_UDP_TUNNEL 762306a36Sopenharmony_ci select CRYPTO 862306a36Sopenharmony_ci select CRYPTO_CRC32 962306a36Sopenharmony_ci help 1062306a36Sopenharmony_ci This driver implements the InfiniBand RDMA transport over 1162306a36Sopenharmony_ci the Linux network stack. It enables a system with a 1262306a36Sopenharmony_ci standard Ethernet adapter to interoperate with a RoCE 1362306a36Sopenharmony_ci adapter or with another system running the RXE driver. 1462306a36Sopenharmony_ci Documentation on InfiniBand and RoCE can be downloaded at 1562306a36Sopenharmony_ci www.infinibandta.org and www.openfabrics.org. (See also 1662306a36Sopenharmony_ci siw which is a similar software driver for iWARP.) 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci The driver is split into two layers, one interfaces with the 1962306a36Sopenharmony_ci Linux RDMA stack and implements a kernel or user space 2062306a36Sopenharmony_ci verbs API. The user space verbs API requires a support 2162306a36Sopenharmony_ci library named librxe which is loaded by the generic user 2262306a36Sopenharmony_ci space verbs API, libibverbs. The other layer interfaces 2362306a36Sopenharmony_ci with the Linux network stack at layer 3. 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci To configure and work with soft-RoCE driver please use the 2662306a36Sopenharmony_ci following wiki page under "configure Soft-RoCE (RXE)" section: 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md 29