RDMA-SYSTEM(8) Linux RDMA-SYSTEM(8)
NAME
rdma-system - RDMA subsystem configuration
SYNOPSIS
rdma [ OPTIONS ] sys { COMMAND | help }
OPTIONS := { -V[ersion] | -d[etails] }
rdma system show
rdma system set netns NEWMODE
rdma system help
DESCRIPTION
rdma system set - set RDMA subsystem network namespace mode
rdma system show - display RDMA subsystem network namespace mode
NEWMODE - specifies the RDMA subsystem mode. Either exclusive or
shared. When user wants to assign dedicated RDMA device to a particu-
lar network namespace, exclusive mode should be set before creating any
network namespace. If there are active network namespaces and if one or
more RDMA devices exist, changing mode from shared to exclusive returns
error code EBUSY.
When RDMA subsystem is in shared mode, RDMA device is accessible in all
network namespace. When RDMA device isolation among multiple network
namespaces is not needed, shared mode can be used.
It is preferred to not change the subsystem mode when there is active
RDMA traffic running, even though it is supported.
EXAMPLES
rdma system show
Shows the state of RDMA subsystem network namespace mode on the
system.
rdma system set netns exclusive
Sets the RDMA subsystem in network namespace exclusive mode. In
this mode RDMA devices are visible only in single network name-
space.
rdma system set netns shared
Sets the RDMA subsystem in network namespace shared mode. In this
mode RDMA devices are shared among network namespaces.
SEE ALSO
rdma(8), rdma-link(8), rdma-resource(8), network_namespaces(7), name-
spaces(7),
AUTHOR
Parav Pandit <parav@mellanox.com>
iproute2 06 Jul 2017 RDMA-SYSTEM(8)