debian man page for ibv_attach_mcast

Query: ibv_attach_mcast

OS: debian

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

IBV_ATTACH_MCAST(3)					  Libibverbs Programmer's Manual				       IBV_ATTACH_MCAST(3)

NAME
ibv_attach_mcast, ibv_detach_mcast - attach and detach a queue pair (QPs) to/from a multicast group
SYNOPSIS
#include <infiniband/verbs.h> int ibv_attach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid); int ibv_detach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid);
DESCRIPTION
ibv_attach_mcast() attaches the QP qp to the multicast group having MGID gid and MLID lid. ibv_detach_mcast() detaches the QP qp to the multicast group having MGID gid and MLID lid.
RETURN VALUE
ibv_attach_mcast() and ibv_detach_mcast() returns 0 on success, or the value of errno on failure (which indicates the failure reason).
NOTES
Only QPs of Transport Service Type IBV_QPT_UD may be attached to multicast groups. If a QP is attached to the same multicast group multiple times, the QP will still receive a single copy of a multicast message. In order to receive multicast messages, a join request for the multicast group must be sent to the subnet administrator (SA), so that the fabric's multicast routing is configured to deliver messages to the local port.
SEE ALSO
ibv_create_qp(3)
AUTHORS
Dotan Barak <dotanba@gmail.com> libibverbs 2006-10-31 IBV_ATTACH_MCAST(3)
Related Man Pages
mckey(1) - debian
mckey(1) - centos
ibv_create_qp(3) - centos
ibv_query_device(3) - centos
setipv4sourcefilter(3n) - hpux
Similar Topics in the Unix Linux Community
Joining multicast group on IPADDR_ANY - which interface?
How to assign multicast IP address
multicast config
Tracking down the problem
pimd