DOKK / manpages / debian 12 / libibverbs-dev / ibv_get_device_index.3.en
IBV_GET_DEVICE_INDEX(3) Libibverbs Programmer’s Manual IBV_GET_DEVICE_INDEX(3)

ibv_get_device_index - get an RDMA device index

#include <infiniband/verbs.h>
int ibv_get_device_index(struct ibv_device *device);
    

ibv_get_device_index() returns stable IB device index as it is assigned by the kernel.

ibv_get_device_index() returns an index, or -1 if the kernel doesn’t support device indexes.

ibv_get_device_name(3), ibv_get_device_guid(3), ibv_get_device_list(3), ibv_open_device(3)

Leon Romanovsky <leonro@mellanox.com>

2020-04-22 libibverbs