ibv_query_rt_values_ex(3) — Linux manual page
IBV_QUE...LUES_EX(3) Libibverbs Programmer's Manual IBV_QUE...LUES_EX(3)
NAME
ibv_query_rt_values_ex - query an RDMA device for some real time
values
SYNOPSIS
#include <infiniband/verbs.h>
int ibv_query_rt_values_ex(struct ibv_context *context,
struct ibv_values_ex *values);
DESCRIPTION
ibv_query_rt_values_ex() returns certain real time values of a
device context. The argument attr is a pointer to an
ibv_device_attr_ex struct, as defined in <infiniband/verbs.h>.
struct ibv_values_ex {
uint32_t comp_mask; /* Compatibility mask that defines the query/queried fields [in/out] */
struct timespec raw_clock; /* HW raw clock */
};
enum ibv_values_mask {
IBV_VALUES_MASK_RAW_CLOCK = 1 << 0, /* HW raw clock */
};
RETURN VALUE
ibv_query_rt_values_ex() returns 0 on success, or the value of
errno on failure (which indicates the failure reason).
NOTES
This extension verb only calls the provider, the provider has to
query this value somehow and mark the queried values in the
comp_mask field.
SEE ALSO
ibv_query_device(3), ibv_open_device(3), ibv_query_port(3),
ibv_query_pkey(3), ibv_query_gid(3)
AUTHORS
Matan Barak <matanb@mellanox.com>
Yishai Hadas <yishaih@mellanox.com>
COLOPHON
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 2024-06-14. (At
that time, the date of the most recent commit that was found in
the repository was 2024-06-10.) If you discover any rendering
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