IBV_INC_RKEY(3) Libibverbs Programmer’s Manual IBV_INC_RKEY(3)

ibv_inc_rkey - creates a new rkey from the given one

#include <infiniband/verbs.h>
uint32_t ibv_inc_rkey(uint32_t rkey);

ibv_inc_rkey() Increases the 8 LSB of rkey and returns the new value.

ibv_inc_rkey() returns the new rkey.

The verb generates a new rkey that is different from the previous one on its tag part but has the same index (bits 0xffffff00). A use case for this verb can be to create a new rkey from a Memory window’s rkey when binding it to a Memory region.

Majd Dibbiny <majd@mellanox.com>, Yishai Hadas <yishaih@mellanox.com>

2015-01-29 libibverbs