1config RDMA_SIW 2 tristate "Software RDMA over TCP/IP (iWARP) driver" 3 depends on INET && INFINIBAND && LIBCRC32C && 64BIT 4 select DMA_VIRT_OPS 5 help 6 This driver implements the iWARP RDMA transport over 7 the Linux TCP/IP network stack. It enables a system with a 8 standard Ethernet adapter to interoperate with a iWARP 9 adapter or with another system running the SIW driver. 10 (See also RXE which is a similar software driver for RoCE.) 11 12 The driver interfaces with the Linux RDMA stack and 13 implements both a kernel and user space RDMA verbs API. 14 The user space verbs API requires a support 15 library named libsiw which is loaded by the generic user 16 space verbs API, libibverbs. To implement RDMA over 17 TCP/IP, the driver further interfaces with the Linux 18 in-kernel TCP socket layer. 19