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| 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_KeySYNOPSIS¶
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#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 InfiniBand 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 error.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>| 2018-07-16 | libibverbs |