rdma_set_option - Set communication options for an rdma_cm_id.
#include <rdma/rdma_cma.h> int rdma_set_option (struct rdma_cm_id *id, int level, int optname, void *optval, size_t optlen);
Librdmacm Programmer's Manual RDMA_SET_OPTION(3) NAME rdma_set_option - Set communication options for an rdma_cm_id. SYNOPSIS #include <rdma/rdma_cma.h> int rdma_set_option (struct rdma_cm_id *id, int level, int optname, void *optval, size_t optlen); ARGUMENTS id RDMA identifier. level Protocol level of the option to set. Currently level RDMA_OPTION_ID is supported. optname Name of the option, relative to the level, to set. The supported options are RDMA_OPTION_ID_REUSEADDR and RDMA_OPTION_ID_TOS for level RDMA_OPTION_ID. optval Reference to the option data. The data is dependent on the level and optname. For the options RDMA_OPTION_ID_REUSE- ADDR and RDMA_OPTION_ID_TOS, an integer is passed. optlen The size of the %optval buffer. DESCRIPTION Sets communication options for an rdma_cm_id. This call is used to override the default system settings. The RDMA_OPTION_ID_REUSEADDR option can be used to enable or disable REUSEADDR option for a CMID. A value of 0 disables the option and a non-zero value enables the option. This option can be set before call- ing rdma_bind_addr(3) or the rdma_resolve_addr(3) API. Listening for connection requests, using rdma_listen(3), is not supported for CMIDs set with this option. This option enables multiple connections to share the same source IP Port on the active side of the connection. The RDMA_OPTION_ID_TOS option can be used to set the Terms of Service level. A value of 0 disables the option and a non-zero value enables the option. RETURN VALUE Returns 0 on success, or -1 on error. If an error occurs, errno will be set to indicate the failure reason. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+-----------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+-----------------------+ |Availability | network/open-fabrics | +---------------+-----------------------+ |Stability | Pass-through volatile | +---------------+-----------------------+ NOTES Option details may be found in the relevent header files. Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from ['https://www.openfabrics.org/down- loads/ibutils/ibutils-1.5.7-0.2.gbd7e502.tar.gz', 'https://www.openfab- rics.org/downloads/libibverbs/libibverbs-1.1.8.tar.gz', 'https://www.openfabrics.org/downloads/libmlx4/libmlx4-1.0.6.tar.gz', 'https://www.openfabrics.org/downloads/libsdp/lib- sdp-1.1.108-0.15.gd7fdb72.tar.gz', 'https://www.openfabrics.org/down- loads/management/infiniband-diags-1.6.5.tar.gz', 'https://www.openfab- rics.org/downloads/management/libibmad-1.3.12.tar.gz', 'https://www.openfabrics.org/downloads/management/libibu- mad-1.3.10.2.tar.gz', 'https://www.openfabrics.org/downloads/manage- ment/opensm-3.3.19.tar.gz', 'https://www.openfabrics.org/down- loads/perftest/perftest-1.3.0-0.42.gf350d3d.tar.gz', 'https://www.open- fabrics.org/downloads/qperf/qperf-0.4.9.tar.gz', 'https://www.openfab- rics.org/downloads/rdmacm/librdmacm-1.0.21.tar.gz', 'https://www.open- fabrics.org/downloads/rds-tools/rds-tools-2.0.4.tar.gz']. Further information about this software can be found on the open source community website at http://www.openfabrics.org/. SEE ALSO rdma_create_id(3) librdmacm 2007-08-06 RDMA_SET_OPTION(3)