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openmpi/ompi/mca/btl/tcp/btl_tcp_addr.h
George Bosilca 46265db0a9 Update the TCP BTL in order to bring back some of the functionalities lost
during the IPv6 patch. The most important is the multi BTL support. There
was a quite interesting bug. Instead of setting up the multiple connections
over different physical devices, based on the time when these connections
were created most of the time they were all using the same physical network.
Which, of course, was not the intended goal, as we top at the maximum
bandwidth available over one device instead of gathering all available
bandwidth from all devices.

Second, the IPv6 RFC suggest to use sockaddr_storage as a holder for the
IP information, but use a sockaddr* when we pass it to functions. This is
only partially corrected by this patch.

Some other minor cleanups.

This commit was SVN r14544.
2007-04-28 19:13:47 +00:00

73 строки
2.1 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*/
#ifndef MCA_BTL_TCP_ADDR_H
#define MCA_BTL_TCP_ADDR_H
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
/**
* Structure used to publish TCP connection information to peers.
*/
struct mca_btl_tcp_addr_t {
/* the following information is exchanged between different
machines (read: byte order), so use network byte order
for everything and don't add padding
*/
#if OPAL_WANT_IPV6
struct in6_addr addr_inet; /**< IPv4/IPv6 listen address > */
#else
/* Bug, FIXME: needs testing */
struct my_in6_addr {
union {
uint32_t u6_addr32[4];
struct _my_in6_addr {
struct in_addr _addr_inet;
uint32_t _pad[3];
} _addr__inet;
} _union_inet;
} addr_inet;
#endif
in_port_t addr_port; /**< listen port */
uint16_t addr_ifkindex; /**< remote interface index assigned with
this address */
unsigned short addr_inuse; /**< local meaning only */
uint8_t addr_family; /**< AF_INET or AF_INET6 */
};
typedef struct mca_btl_tcp_addr_t mca_btl_tcp_addr_t;
#define MCA_BTL_TCP_AF_INET 0
#if OPAL_WANT_IPV6
# define MCA_BTL_TCP_AF_INET6 1
#endif
#endif