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NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | RETURN VALUE | ERRORS | EXAMPLE | SEE ALSO | AUTHORS | COLOPHON |
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ibv_cre...counters(3) Libibverbs Programmer’s Manualibv_cre...counters(3)
ibv_create_counters, ibv_destroy_counters - Create or destroy a
counters handle
#include <infiniband/verbs.h>
struct ibv_counters *
ibv_create_counters(struct ibv_context *context,
struct ibv_counters_init_attr *init_attr);
int ibv_destroy_counters(struct ibv_counters *counters);
ibv_create_counters() creates a new counters handle for the RDMA
device context.
An ibv_counters handle can be attached to a verbs resource (e.g.:
QP, WQ, Flow) statically when these are created.
For example attach an ibv_counters statically to a Flow (struct
ibv_flow) during creation of a new Flow by calling
ibv_create_flow().
Counters are cleared upon creation and values will be
monotonically increasing.
ibv_destroy_counters() releases the counters handle, user should
detach the counters object before destroying it.
context
RDMA device context to create the counters on.
init_attr
Is an ibv_counters_init_attr struct, as defined in verbs.h.
init_attr Argument
struct ibv_counters_init_attr {
int comp_mask;
};
comp_mask
Bitmask specifying what fields in the structure are valid.
ibv_create_counters() returns a pointer to the allocated
ibv_counters object, or NULL if the request fails (and sets errno
to indicate the failure reason)
ibv_destroy_counters() returns 0 on success, or the value of errno
on failure (which indicates the failure reason)
EOPNOTSUPP
ibv_create_counters() is not currently supported on this
device (ENOSYS may sometimes be returned by old versions of
libibverbs).
ENOMEM ibv_create_counters() could not create ibv_counters object,
not enough memory
EINVAL invalid parameter supplied ibv_destroy_counters()
An example of use of ibv_counters is shown in ibv_read_counters
ibv_attach_counters_point_flow, ibv_read_counters, ibv_create_flow
Raed Salem ⟨[email protected]⟩
Alex Rosenbaum ⟨[email protected]⟩
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
[email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-08-04.) 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 protected]
libibverbs 2018-04-02 ibv_cre...counters(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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