Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
fi_tcp(7)			   @VERSION@			     fi_tcp(7)

NAME
       fi_tcp -	The msg	sockets	Fabric Provider

OVERVIEW
       The  tcp	 provider can be used on any system that supports TCP sockets.
       The provider is not intended to provide performance  improvements  over
       regular	TCP sockets, but rather	to allow developers to write, test,and
       debug application code even on platforms	that do	not have  high-perfor-
       mance fabric hardware.

SUPPORTED FEATURES
       The following features are supported

       Endpoint	types
	      FI_EP_MSG	 is  the only supported	endpoint type.	Reliable data-
	      gram endpoint over TCP sockets can be achieved by	 layering  RxM
	      over tcp provider.
       FI_EP_RDM  is  supported	by layering ofi_rxm provider on	top of the tcp
       provider.

       Endpoint	capabilities
	      The tcp provider currently supports FI_MSG, FI_RMA

       Progress
	      Currently	tcp provider supports only FI_PROGRESS_MANUAL

       Shared Rx Context
	      The tcp provider supports	shared receive context

       Multi recv buffers
	      The tcp provider supports	multi recv buffers

RUNTIME	PARAMETERS
       The tcp provider	check for the following	enviroment variables -

       FI_TCP_IFACE
	      A	specific can be	requested with this variable

       FI_TCP_PORT_LOW_RANGE/FI_TCP_PORT_HIGH_RANGE
	      These variables are used to set the range	of ports to be used by
	      the  tcp	provider  for  its passive endpoint creation.  This is
	      useful where only	a range	of ports are allowed by	 firewall  for
	      tcp connections.

LIMITATIONS
       The  tcp	 provider is implemented over TCP sockets to emulate libfabric
       API.  Hence the performance may be lower	than what an application might
       see  implementing  to  sockets directly,	depending on the types of data
       transfers the application is trying to achieve.

SEE ALSO
       fabric(7), fi_provider(7), fi_getinfo(3)

AUTHORS
       OpenFabrics.

Libfabric Programmer's Manual	  2020-04-14			     fi_tcp(7)

NAME | OVERVIEW | SUPPORTED FEATURES | RUNTIME PARAMETERS | LIMITATIONS | SEE ALSO | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=fi_tcp&sektion=7&manpath=FreeBSD+13.0-RELEASE+and+Ports>

home | help