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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
RDMA_NOTIFY(3) Librdmacm Programmer's Manual RDMA_NOTIFY(3)
rdma_notify - Notifies the librdmacm of an asynchronous event.
#include <rdma/rdma_cma.h>
int rdma_notify (struct rdma_cm_id *id, enum ibv_event_type event);
id RDMA identifier.
event Asynchronous event.
Used to notify the librdmacm of asynchronous events that have
occurred on a QP associated with the rdma_cm_id.
Returns 0 on success, or -1 on error. If an error occurs, errno will
be set to indicate the failure reason. If errno is set to EISCONN
(transport endpoint is already connected), this indicates that the
the underlying communication manager established the connection
before the call to rdma_notify could be processed. In this case, the
error may safely be ignored.
Asynchronous events that occur on a QP are reported through the
user's device event handler. This routine is used to notify the
librdmacm of communication events. In most cases, use of this
routine is not necessary, however if connection establishment is done
out of band (such as done through Infiniband), it's possible to
receive data on a QP that is not yet considered connected. This
routine forces the connection into an established state in this case
in order to handle the rare situation where the connection never
forms on its own. Calling this routine ensures the delivery of the
RDMA_CM_EVENT_ESTABLISHED event to the application. Events that
should be reported to the CM are: IB_EVENT_COMM_EST.
rdma_connect(3), rdma_accept(3), rdma_listen(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 linux-rdma@vger.kernel.org. This
page was obtained from the project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2020-08-13. (At
that time, the date of the most recent commit that was found in the
repository was 2020-08-05.) If you discover any rendering problems
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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 man-pages@man7.org
librdmacm 2007-05-15 RDMA_NOTIFY(3)
Pages that refer to this page: rdma_cm(7)