From: Jianxin Xiong <jianxin.xiong@intel.com>
To: linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org
Cc: Jianxin Xiong <jianxin.xiong@intel.com>,
Doug Ledford <dledford@redhat.com>,
Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
Sumit Semwal <sumit.semwal@linaro.org>,
Christian Koenig <christian.koenig@amd.com>,
Daniel Vetter <daniel.vetter@intel.com>
Subject: [PATCH rdma-core 2/5] mlx5: Support dma-buf based memory region
Date: Mon, 23 Nov 2020 09:53:01 -0800 [thread overview]
Message-ID: <1606153984-104583-3-git-send-email-jianxin.xiong@intel.com> (raw)
In-Reply-To: <1606153984-104583-1-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 | 23 +++++++++++++++++++++++
3 files changed, 28 insertions(+)
diff --git a/providers/mlx5/mlx5.c b/providers/mlx5/mlx5.c
index 1378acf..b3e2d57 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
@@ -96,6 +97,7 @@ 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 8c94f72..17a2470 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
@@ -903,6 +904,8 @@ 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 b956156..6279993 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
@@ -647,6 +648,28 @@ 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;
+ enum ibv_access_flags access = (enum ibv_access_flags)acc;
+
+ mr = calloc(1, sizeof(*mr));
+ if (!mr)
+ return NULL;
+
+ ret = ibv_cmd_reg_dmabuf_mr(pd, offset, length, iova, fd, access,
+ &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
next prev parent reply other threads:[~2020-11-23 17:39 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-23 17:52 [PATCH rdma-core 0/5] Add user space dma-buf support Jianxin Xiong
2020-11-23 17:53 ` [PATCH rdma-core 1/5] verbs: Support dma-buf based memory region Jianxin Xiong
2020-11-23 18:01 ` Jason Gunthorpe
2020-11-24 10:31 ` Yishai Hadas
2020-11-24 18:00 ` Xiong, Jianxin
2020-11-23 17:53 ` Jianxin Xiong [this message]
2020-11-23 18:01 ` [PATCH rdma-core 2/5] mlx5: " Jason Gunthorpe
2020-11-23 19:40 ` Xiong, Jianxin
2020-11-23 17:53 ` [PATCH rdma-core 3/5] pyverbs: Add dma-buf based MR support Jianxin Xiong
2020-11-23 18:05 ` Jason Gunthorpe
2020-11-23 19:48 ` Xiong, Jianxin
2020-11-24 15:16 ` Daniel Vetter
2020-11-24 15:36 ` Jason Gunthorpe
2020-11-24 16:21 ` Xiong, Jianxin
2020-11-24 18:45 ` Xiong, Jianxin
2020-11-25 10:50 ` Daniel Vetter
2020-11-25 12:14 ` Jason Gunthorpe
2020-11-25 19:27 ` Xiong, Jianxin
2020-11-26 0:00 ` Jason Gunthorpe
2020-11-26 0:43 ` Xiong, Jianxin
2020-11-23 17:53 ` [PATCH rdma-core 4/5] tests: Add tests for dma-buf based memory regions Jianxin Xiong
2020-11-23 17:53 ` [PATCH rdma-core 5/5] tests: Bug fix for get_access_flags() Jianxin Xiong
2020-11-24 20:26 ` John Hubbard
2020-11-24 20:43 ` Xiong, Jianxin
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