Manual: rdma-system

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 set privileged-qkey NEWSTATE

       rdma system help

DESCRIPTION
   rdma system set - set RDMA subsystem network namespace mode or
       privileged qkey mode

   rdma system show - display RDMA subsystem network namespace mode,
       privileged qkey state and whether RDMA monitoring is supported.

       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 re‐
       turns 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 sup‐
       ported.

       NEWSTATE - Specifies the new state of the privileged-qkey parameter, either on or off.  This parameter determines
       whether a non-privileged user is allowed to specify a controlled QKEY or not.

EXAMPLES
       rdma system show
	   Shows the state of RDMA subsystem network namespace mode on the system, the state of privileged qkey parameter
	   and whether RDMA monitor is supported.

       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 namespace.

       rdma system set netns shared
	   Sets the RDMA subsystem in network namespace shared mode. In this mode RDMA devices are shared among network
	   namespaces.

       rdma system set privileged-qkey on
	   Sets the privileged-qkey parameter to on. In this state non-privileged user is allowed to specify a controlled
	   QKEY.

       rdma system set privileged-qkey off
	   Sets the privileged-qkey parameter to off. In this state non-privileged user is *not* allowed to specify a con‐
	   trolled QKEY.

SEE ALSO
       rdma(8), rdma-link(8), rdma-resource(8), rdma-monitor(8), network_namespaces(7), namespaces(7),

AUTHOR
       Parav Pandit 

iproute2						 06 Jul 2017					      RDMA-SYSTEM(8)