IBV_GET_PKEY_INDEX(3) Libibverbs Programmer’s Manual IBV_GET_PKEY_INDEX(3)
NAME
ibv_get_pkey_index - obtain the index in the P_Key table of a P_Key
SYNOPSIS
#include <infiniband/verbs.h>
int ibv_get_pkey_index(struct ibv_context *context,
uint8_t port_num,
__be16 pkey);
DESCRIPTION
Every InfiniBand HCA maintains a P_Key table for each of its ports that
is indexed by an integer and with a P_Key in each element. Certain In-
finiBand data structures that work with P_Keys expect a P_Key index,
e.g. struct ibv_qp_attr and struct ib_mad_addr. Hence the function
ibv_get_pkey_index() that accepts a P_Key in network byte order and
that returns an index in the P_Key table as result.
RETURN VALUE
ibv_get_pkey_index() returns the P_Key index on success, and -1 on er-
ror.
SEE ALSO
ibv_open_device(3), ibv_query_device(3), ibv_query_gid(3),
ibv_query_pkey(3), ibv_query_port(3)
AUTHOR
Bart Van Assche <bvanassche@acm.org>
libibverbs 2018-07-16 IBV_GET_PKEY_INDEX(3)
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