rpma_mr_advise3
Give advice about an address range in a memory registration
Usage
#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);
Overview
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).
Return value
The rpma_mr_advise() function returns 0 on success or a negative error code on failure.
Errors
rpma_mr_advise() can fail with the following errors:
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RPMA_E_INVAL - in one of the following:
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the requested range is out of the memory registration bounds
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the memory registration usage does not allow the specific advice
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the flags are invalid
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RPMA_E_NOSUPP - the operation is not supported by the system
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RPMA_E_PROVIDER - ibv_mr_advise(3) failed for other errors
Releases
2 releases since Debian 12 (Bookworm); the text changed 1 time.