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NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON |
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IBV_QUE...ID_TABLE(3) Libibverbs Programmer’s ManualIBV_QUE...ID_TABLE(3)
ibv_query_gid_table - query an InfiniBand device’s GID table
#include <infiniband/verbs.h>
ssize_t ibv_query_gid_table(struct ibv_context *context,
struct ibv_gid_entry *entries,
size_t max_entries,
uint32_t flags);
ibv_query_gid_table() returns the valid GID table entries of the
RDMA device context context at the pointer entries.
A caller must allocate entries array for the GID table entries it
desires to query. This API returns only valid GID table entries.
A caller must pass non zero number of entries at max_entries that
corresponds to the size of entries array.
entries array must be allocated such that it can contain all the
valid GID table entries of the device. If there are more valid
GID entries than the provided value of max_entries and entries
array, the call will fail. For example, if an RDMA device context
has a total of 10 valid GID entries, entries should be allocated
for at least 10 entries, and max_entries should be set
appropriately.
context
The context of the device to query.
entries
Array of ibv_gid_entry structs where the GID entries are
returned. Please see ibv_query_gid_ex(3) man page for
ibv_gid_entry.
max_entries
Maximum number of entries that can be returned.
flags Extra fields to query post entries->ndev_ifindex, for now
must be 0.
ibv_query_gid_table() returns the number of entries that were read
on success or negative errno value on error. Number of entries
returned is <= max_entries.
ibv_open_device(3), ibv_query_device(3), ibv_query_port(3),
ibv_query_gid_ex(3)
Parav Pandit ⟨parav@nvidia.com⟩
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 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
man-pages@man7.org
libibverbs 2020-04-24 IBV_QUE...ID_TABLE(3)
Pages that refer to this page: ibv_query_gid_ex(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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