IB/core: Add UVERBS_METHOD_REG_MR on the MR object

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This new method enables us to use a single ioctl from user space which
supports the below variants of reg_mr [1].

The method will be extended in the next patches from the series with an
extra attribute to let us pass DMA handle to be used as part of the
registration.

[1] ibv_reg_mr(), ibv_reg_mr_iova(), ibv_reg_mr_iova2(),
ibv_reg_dmabuf_mr().

Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Edward Srouji <edwards@nvidia.com>
Link: https://patch.msgid.link/5a3822ceef084efe967c9752e89c58d8250337c7.1752752567.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Yishai Hadas 2025-07-17 15:17:28 +03:00 • committed by Leon Romanovsky

parent b272fc8972

commit 5b2e45049d

2 changed files with 166 additions and 1 deletions

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153

drivers/infiniband/core/uverbs_std_types_mr.c

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14

include/uapi/rdma/ib_user_ioctl_cmds.h

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