RDMA_RESOLVE_ADDR(3) Librdmacm Programmer's Manual RDMA_RESOLVE_ADDR(3)
rdma_resolve_addr - Resolve destination and optional source addresses.
#include <rdma/rdma_cma.h> int rdma_resolve_addr (struct rdma_cm_id *id, struct sockaddr *src_addr, struct sockaddr *dst_addr, int timeout_ms);
id RDMA identifier. src_addr Source address information. This parameter may be NULL. dst_addr Destination address information. timeout_ms Time to wait for resolution to complete.
Resolve destination and optional source addresses from IP addresses to an RDMA address. If successful, the specified rdma_cm_id will be bound to a local device.
Returns 0 on success, or -1 on error. If an error occurs, errno will be set to indicate the failure reason.
This call is used to map a given destination IP address to a usable RDMA address. The IP to RDMA address mapping is done using the local routing tables, or via ARP. If a source address is given, the rdma_cm_id is bound to that address, the same as if rdma_bind_addr were called. If no source address is given, and the rdma_cm_id has not yet been bound to a device, then the rdma_cm_id will be bound to a source address based on the local routing tables. After this call, the rdma_cm_id will be bound to an RDMA device. This call is typically made from the active side of a connection before calling rdma_resolve_route and rdma_connect.
This call maps the destination and, if given, source IP addresses to GIDs. In order to perform the mapping, IPoIB must be running on both the local and remote nodes.
rdma_create_id(3), rdma_resolve_route(3), rdma_connect(3), rdma_create_qp(3), rdma_get_cm_event(3), rdma_bind_addr(3), rdma_get_src_port(3), rdma_get_dst_port(3), rdma_get_local_addr(3), rdma_get_peer_addr(3)
This page is part of the rdma-core (RDMA Core Userspace Libraries and Daemons) project. Information about the project can be found at ⟨https://github.com/linux-rdma/rdma-core⟩. If you have a bug report for this manual page, send it to firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2021-04-01. (At that time, the date of the most recent commit that was found in the repository was 2021-03-24.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to email@example.com librdmacm 2007-10-31 RDMA_RESOLVE_ADDR(3)
Pages that refer to this page: rdma_bind_addr(3), rdma_create_id(3), rdma_create_qp(3), rdma_create_srq(3), rdma_get_cm_event(3), rdma_get_local_addr(3), rdma_get_peer_addr(3), rdma_get_src_port(3), rdma_join_multicast(3), rdma_join_multicast_ex(3), rdma_resolve_route(3), rdma_cm(7)