NAME

       fi_info - Simple utility to query for fabric interfaces

SYNOPSIS

               fi_info [OPTIONS]

DESCRIPTION

       The fi_info utility can be used to query for available fabric interfaces.  The utility supports filtering
       based  on  a  number  of options such as endpoint type, provider name, or supported modes.  Additionally,
       fi_info can also be used to discover the environment variables that can be used to tune provider specific
       parameters.  If no filters are specified, then all available fabric  interfaces  for  all  providers  and
       endpoint types will be returned.

OPTIONS

   Filtering
       -n,  --node=<NAME> : Node name or address used to filter interfaces.  Only interfaces which can reach the
       given node or address will respond.

       -P, --port=<PORT> : Port number used to filter interfaces.

       -c, --caps=<CAP1|CAP2>.. :  Pipe  separated  list  of  capabilities  used  to  filter  interfaces.   Only
       interfaces  supporting all of the given capabilities will respond.  For more information on capabilities,
       see fi_getinfo(3).

       -m, --mode=<MOD1|MOD2>.. : Pipe separated list of modes  used  to  filter  interfaces.   Only  interfaces
       supporting all of the given modes will respond.  For more information on, modes see fi_getinfo(3).

       -t,  --ep_type=<EPTYPE>  :  Specifies  the  type of fabric interface communication desired.  For example,
       specifying FI_EP_DGRAM would  return  only  interfaces  which  support  unreliable  datagram.   For  more
       information on endpoint types, see fi_endpoint(3).

       -a,  --addr_format=<FMT>  :  Filter  fabric  interfaces by their address format.  For example, specifying
       FI_SOCKADDR_IN would return only interfaces which use sockaddr_in structures for  addressing.   For  more
       information on address formats, see fi_getinfo(3).

       -p,  --provider=<PROV>  :  Filter  fabric  interfaces  by  the  provider  implementation.   For a list of
       providers, see the --list option.

       -d, --domain=<DOMAIN> : Filter interfaces to only those with the given domain name.

       -f, --fabric=<FABRIC> : Filter interfaces to only those with the given fabric name.

   Discovery
       -e, --env : List libfabric related environment levels which can be used to enable extra configuration  or
       tuning.

       -l, --list : List available libfabric providers.

       -v,  --verbose : By default, fi_info will display a summary of each of the interfaces discovered.  If the
       verbose option is enabled, then all of the contents of the fi_info structure  are  displayed.   For  more
       information on the data contained in the fi_info structure, see fi_getinfo(3).

       --version : Display versioning information.

USAGE EXAMPLES

              $ fi_info -n 30.0.11.1 -p usnic -t FI_EP_DGRAM

       This  will  respond  with  all  fabric  interfaces  that  can reach address 30.0.11.1 using endpoint type
       FI_EP_DGRAM with the usNIC provider.

OUTPUT

       By default fi_info will output a summary of the fabric interfaces discovered:

              $ ./fi_info -n 30.0.11.1 -p usnic -t FI_EP_DGRAM
              provider: usnic
                  fabric: 30.0.11.0/24
                  domain: usnic_2
                  version: 1.0
                  type: FI_EP_DGRAM
                  protocol: FI_PROTO_UDP

       To see the full fi_info structure, specify the -v option.

SEE ALSO

       fi_getinfo(3), fi_endpoint(3)

AUTHORS

       OpenFabrics.

Libfabric Programmer's Manual                      2016-09-12                                         fi_info(1)