rdma-system(8) — Linux manual page


RDMA-SYSTEM(8)                    Linux                   RDMA-SYSTEM(8)

NAME         top

       rdma-system - RDMA subsystem configuration

SYNOPSIS         top

       rdma [ OPTIONS ] sys  { COMMAND | help }

       OPTIONS := { -V[ersion] | -d[etails] }

       rdma system show

       rdma system set netns NEWMODE

       rdma system help

DESCRIPTION         top

   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
       particular 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

       It is preferred to not change the subsystem mode when there is
       active RDMA traffic running, even though it is supported.

EXAMPLES         top

       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

       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         top

       rdma(8), rdma-link(8), rdma-resource(8), network_namespaces(7),

AUTHOR         top

       Parav Pandit <parav@mellanox.com>

COLOPHON         top

       This page is part of the iproute2 (utilities for controlling
       TCP/IP networking and traffic) project.  Information about the
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iproute2                       06 Jul 2017                RDMA-SYSTEM(8)

Pages that refer to this page: rdma(8)rdma-dev(8)