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rpma_utils_ibv_context_is_odp_capable(3) RPMA Programmer's Manual rpma_utils_ibv_context_is_odp_capable(3)

NAME

rpma_utils_ibv_context_is_odp_capable - is On-Demand Paging supported

SYNOPSIS

      #include <librpma.h>
      struct ibv_context;
      int rpma_utils_ibv_context_is_odp_capable(struct ibv_context *dev,
              int *is_odp_capable);

DESCRIPTION

rpma_utils_ibv_context_is_odp_capable() queries the RDMA device context's capabilities and check if it supports On-Demand Paging.

RETURN VALUE

The rpma_utils_ibv_context_is_odp_capable() function returns 0 on success or a negative error code on failure. The *is_odp_capable value on failure is undefined.

ERRORS

rpma_utils_ibv_context_is_odp_capable() can fail with the following errors:
  • RPMA_E_INVAL - dev or is_odp_capable is NULL
  • RPMA_E_PROVIDER - ibv_query_device_ex() failed, the exact cause of the error can be read from the log

SEE ALSO

rpma_utils_get_ibv_context(3), librpma(7) and https://pmem.io/rpma/
21 October 2020 RPMA