
This introduces a kind of Emulated-ISM device named loopback-ism for SMCv2.1. The loopback-ism device is currently exclusive for SMC usage, and aims to provide an SMC shortcut for sockets within the same kernel, leading to improved intra-OS traffic performance. Configuration of this feature is managed through the config SMC_LO. Signed-off-by: Wen Gu <guwen@linux.alibaba.com> Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-and-tested-by: Jan Karcher <jaka@linux.ibm.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
1.0 KiB
SPDX-License-Identifier: GPL-2.0-only
config SMC tristate "SMC socket protocol family" depends on INET && INFINIBAND depends on m || ISM != m help SMC-R provides a "sockets over RDMA" solution making use of RDMA over Converged Ethernet (RoCE) technology to upgrade AF_INET TCP connections transparently. The Linux implementation of the SMC-R solution is designed as a separate socket family SMC.
Select this option if you want to run SMC socket applications
config SMC_DIAG tristate "SMC: socket monitoring interface" depends on SMC help Support for SMC socket monitoring interface used by tools such as smcss.
if unsure, say Y.
config SMC_LO bool "SMC intra-OS shortcut with loopback-ism" depends on SMC default n help SMC_LO enables the creation of an Emulated-ISM device named loopback-ism in SMC and makes use of it for transferring data when communication occurs within the same OS. This helps in convenient testing of SMC-D since loopback-ism is independent of architecture or hardware.
if unsure, say N.