From: Jianxin Xiong <jianxin.xiong@intel.com>
To: linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org
Cc: Yishai Hadas <yishaih@nvidia.com>,
Leon Romanovsky <leon@kernel.org>,
Edward Srouji <edwards@nvidia.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
Doug Ledford <dledford@redhat.com>,
Daniel Vetter <daniel.vetter@intel.com>,
Christian Koenig <christian.koenig@amd.com>,
Jianxin Xiong <jianxin.xiong@intel.com>
Subject: [PATCH rdma-core v7 3/6] mlx5: Support dma-buf based memory region
Date: Mon, 25 Jan 2021 11:56:59 -0800 [thread overview]
Message-ID: <1611604622-86968-4-git-send-email-jianxin.xiong@intel.com> (raw)
In-Reply-To: <1611604622-86968-1-git-send-email-jianxin.xiong@intel.com>
Implement the new provider method for registering dma-buf based memory
regions.
Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com>
---
providers/mlx5/mlx5.c | 2 ++
providers/mlx5/mlx5.h | 3 +++
providers/mlx5/verbs.c | 22 ++++++++++++++++++++++
3 files changed, 27 insertions(+)
diff --git a/providers/mlx5/mlx5.c b/providers/mlx5/mlx5.c
index a2a1696..b3c49af 100644
--- a/providers/mlx5/mlx5.c
+++ b/providers/mlx5/mlx5.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2012 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
@@ -95,6 +96,7 @@ static const struct verbs_context_ops mlx5_ctx_common_ops = {
.async_event = mlx5_async_event,
.dealloc_pd = mlx5_free_pd,
.reg_mr = mlx5_reg_mr,
+ .reg_dmabuf_mr = mlx5_reg_dmabuf_mr,
.rereg_mr = mlx5_rereg_mr,
.dereg_mr = mlx5_dereg_mr,
.alloc_mw = mlx5_alloc_mw,
diff --git a/providers/mlx5/mlx5.h b/providers/mlx5/mlx5.h
index bafe077..decc7f8 100644
--- a/providers/mlx5/mlx5.h
+++ b/providers/mlx5/mlx5.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2012 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
@@ -941,6 +942,8 @@ void mlx5_async_event(struct ibv_context *context,
struct ibv_mr *mlx5_alloc_null_mr(struct ibv_pd *pd);
struct ibv_mr *mlx5_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
uint64_t hca_va, int access);
+struct ibv_mr *mlx5_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset, size_t length,
+ uint64_t iova, int fd, int access);
int mlx5_rereg_mr(struct verbs_mr *mr, int flags, struct ibv_pd *pd, void *addr,
size_t length, int access);
int mlx5_dereg_mr(struct verbs_mr *mr);
diff --git a/providers/mlx5/verbs.c b/providers/mlx5/verbs.c
index 30c7b6e..7790b50 100644
--- a/providers/mlx5/verbs.c
+++ b/providers/mlx5/verbs.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2012 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
@@ -628,6 +629,27 @@ struct ibv_mr *mlx5_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
return &mr->vmr.ibv_mr;
}
+struct ibv_mr *mlx5_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset, size_t length,
+ uint64_t iova, int fd, int acc)
+{
+ struct mlx5_mr *mr;
+ int ret;
+
+ mr = calloc(1, sizeof(*mr));
+ if (!mr)
+ return NULL;
+
+ ret = ibv_cmd_reg_dmabuf_mr(pd, offset, length, iova, fd, acc,
+ &mr->vmr);
+ if (ret) {
+ free(mr);
+ return NULL;
+ }
+ mr->alloc_flags = acc;
+
+ return &mr->vmr.ibv_mr;
+}
+
struct ibv_mr *mlx5_alloc_null_mr(struct ibv_pd *pd)
{
struct mlx5_mr *mr;
--
1.8.3.1
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next prev parent reply other threads:[~2021-01-25 19:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-25 19:56 [PATCH rdma-core v7 0/6] Add user space dma-buf support Jianxin Xiong
2021-01-25 19:56 ` [PATCH rdma-core v7 1/6] Update kernel headers Jianxin Xiong
2021-01-25 19:56 ` [PATCH rdma-core v7 2/6] verbs: Support dma-buf based memory region Jianxin Xiong
2021-01-25 19:56 ` Jianxin Xiong [this message]
2021-01-25 19:57 ` [PATCH rdma-core v7 4/6] pyverbs: Add dma-buf based MR support Jianxin Xiong
2021-01-31 15:31 ` Gal Pressman
2021-02-01 6:16 ` Leon Romanovsky
2021-02-01 14:10 ` Daniel Vetter
2021-02-01 15:29 ` Jason Gunthorpe
2021-02-01 17:03 ` Xiong, Jianxin
2021-02-02 15:24 ` Daniel Vetter
2021-02-03 6:03 ` Leon Romanovsky
2021-02-03 16:57 ` Xiong, Jianxin
2021-02-03 17:53 ` Daniel Vetter
2021-02-03 17:56 ` Jason Gunthorpe
2021-02-03 17:58 ` Xiong, Jianxin
2021-02-03 18:14 ` Emil Velikov
2021-01-25 19:57 ` [PATCH rdma-core v7 5/6] tests: Add tests for dma-buf based memory regions Jianxin Xiong
2021-01-31 8:44 ` John Hubbard
2021-02-01 17:12 ` Xiong, Jianxin
2021-01-25 19:57 ` [PATCH rdma-core v7 6/6] tests: Bug fix for get_access_flags() Jianxin Xiong
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