rpma_mr_advise - give advice about an address range in a memory registration
#include <librpma.h> struct rpma_mr_local *mr; int rpma_mr_advise(struct rpma_mr_local *mr, size_t offset, size_t len, int advice, uint32_t flags);
rpma_mr_advise() gives advice about an address range in a memory registration. The usage parameter specifies the operations that can be performed on the given memory address range. For available advice and flags values please see ibv_advise_mr(3).
The rpma_mr_advise() function returns 0 on success or a negative error code on failure.
rpma_mr_advise() can fail with the following errors:
RPMA_E_INVAL - in one of the following:
the requested range is out of the memory registration bounds
the memory registration usage does not allow the specific advice
the flags are invalid
RPMA_E_NOSUPP - the operation is not supported by the system
RPMA_E_PROVIDER - ibv_mr_advise(3) failed for other errors
rpma_mr_reg(3), ibv_mr_advise(3), librpma(7) and https://pmem.io/rpma/
The contents of this web site and the associated GitHub repositories are BSD-licensed open source.