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RDMA/uverbs: Add uverbs command for dma-buf based MR registration

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Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.

Link: https://lore.kernel.org/r/1608067636-98073-4-git-send-email-jianxin.xiong@intel.com
Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Acked-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Acked-by: Christian Koenig <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Jianxin Xiong 2020-12-15 13:27:15 -08:00 • committed by Jason Gunthorpe
parent 3bc489e882
commit bfe0cc6eb2
2 changed files with 129 additions and 2 deletions
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14
include/uapi/rdma/ib_user_ioctl_cmds.h
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
* Copyright (c) 2020, Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@ -251,6 +252,7 @@ enum uverbs_methods_mr {
UVERBS_METHOD_MR_DESTROY,
UVERBS_METHOD_ADVISE_MR,
UVERBS_METHOD_QUERY_MR,
UVERBS_METHOD_REG_DMABUF_MR,
};
enum uverbs_attrs_mr_destroy_ids {
@ -272,6 +274,18 @@ enum uverbs_attrs_query_mr_cmd_attr_ids {
UVERBS_ATTR_QUERY_MR_RESP_IOVA,
};
enum uverbs_attrs_reg_dmabuf_mr_cmd_attr_ids {
UVERBS_ATTR_REG_DMABUF_MR_HANDLE,
UVERBS_ATTR_REG_DMABUF_MR_PD_HANDLE,
UVERBS_ATTR_REG_DMABUF_MR_OFFSET,
UVERBS_ATTR_REG_DMABUF_MR_LENGTH,
UVERBS_ATTR_REG_DMABUF_MR_IOVA,
UVERBS_ATTR_REG_DMABUF_MR_FD,
UVERBS_ATTR_REG_DMABUF_MR_ACCESS_FLAGS,
UVERBS_ATTR_REG_DMABUF_MR_RESP_LKEY,
UVERBS_ATTR_REG_DMABUF_MR_RESP_RKEY,
};
enum uverbs_attrs_create_counters_cmd_attr_ids {
UVERBS_ATTR_CREATE_COUNTERS_HANDLE,
};