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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>
This commit is contained in:
Yishai Hadas
2025-07-23 01:42:10 -04:00
committed by Leon Romanovsky
parent b272fc8972
commit 5b2e45049d
2 changed files with 166 additions and 1 deletions
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include/uapi/rdma/ib_user_ioctl_cmds.h
+14
View File
@@ -257,6 +257,7 @@ enum uverbs_methods_mr {
UVERBS_METHOD_ADVISE_MR,
UVERBS_METHOD_QUERY_MR,
UVERBS_METHOD_REG_DMABUF_MR,
UVERBS_METHOD_REG_MR,
};
enum uverbs_attrs_mr_destroy_ids {
@@ -290,6 +291,19 @@ enum uverbs_attrs_reg_dmabuf_mr_cmd_attr_ids {
UVERBS_ATTR_REG_DMABUF_MR_RESP_RKEY,
};
enum uverbs_attrs_reg_mr_cmd_attr_ids {
UVERBS_ATTR_REG_MR_HANDLE,
UVERBS_ATTR_REG_MR_PD_HANDLE,
UVERBS_ATTR_REG_MR_IOVA,
UVERBS_ATTR_REG_MR_ADDR,
UVERBS_ATTR_REG_MR_LENGTH,
UVERBS_ATTR_REG_MR_ACCESS_FLAGS,
UVERBS_ATTR_REG_MR_FD,
UVERBS_ATTR_REG_MR_FD_OFFSET,
UVERBS_ATTR_REG_MR_RESP_LKEY,
UVERBS_ATTR_REG_MR_RESP_RKEY,
};
enum uverbs_attrs_create_counters_cmd_attr_ids {
UVERBS_ATTR_CREATE_COUNTERS_HANDLE,
};