jammy (3) rdma_get_devices.3.gz

NAME

       rdma_get_devices - Get a list of RDMA devices currently available.

SYNOPSIS

       #include <rdma/rdma_cma.h>

       struct ibv_context ** rdma_get_devices (int *num_devices);

ARGUMENTS

       num_devices If non-NULL, set to the number of devices returned.

DESCRIPTION

       Return  a  NULL-terminated  array  of  opened  RDMA  devices.   Callers  can use this routine to allocate
       resources on specific RDMA devices that will be shared across multiple rdma_cm_id's.

RETURN VALUE

       Returns an array of available RDMA devices, or NULL if the request fails.  On failure, errno will be  set
       to indicate the failure reason.

NOTES

       The  returned  array  must  be  released  by  calling rdma_free_devices.  Devices remain opened while the
       librdmacm is loaded.

SEE ALSO

       rdma_free_devices(3)