diff mbox series

[rdma-core,10/12] mlx5: Implementation of import MR callback

Message ID 20190716181840.4579-11-yuval.shaia@oracle.com (mailing list archive)
State Superseded
Headers show
Series Shared PD and MR | expand

Commit Message

Yuval Shaia July 16, 2019, 6:18 p.m. UTC 
The import MR verb take care of importing the generic part of the MR
object and then triggers provider's specific callback to take care of
provider's specific attributes.
Add implementation of mlx5 related MR attributes.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Shamir Rabinovitch <srabinov7@gmail.com>
---
 providers/mlx5/mlx5.c  |  1 +
 providers/mlx5/mlx5.h  |  2 ++
 providers/mlx5/verbs.c | 26 ++++++++++++++++++++++++++
 3 files changed, 29 insertions(+)
diff mbox series

Patch

diff --git a/providers/mlx5/mlx5.c b/providers/mlx5/mlx5.c
index c16b30b3..8d1fa232 100644
--- a/providers/mlx5/mlx5.c
+++ b/providers/mlx5/mlx5.c
@@ -91,6 +91,7 @@  static const struct verbs_context_ops mlx5_ctx_common_ops = {
 	.alloc_pd      = mlx5_alloc_pd,
 	.async_event   = mlx5_async_event,
 	.dealloc_pd    = mlx5_free_pd,
+	.import_mr     = mlx5_import_mr,
 	.import_pd     = mlx5_import_pd,
 	.reg_mr	       = mlx5_reg_mr,
 	.rereg_mr      = mlx5_rereg_mr,
diff --git a/providers/mlx5/mlx5.h b/providers/mlx5/mlx5.h
index 19831cee..28eae9cc 100644
--- a/providers/mlx5/mlx5.h
+++ b/providers/mlx5/mlx5.h
@@ -816,6 +816,8 @@  int mlx5_query_port(struct ibv_context *context, uint8_t port,
 
 struct ibv_pd *mlx5_alloc_pd(struct ibv_context *context);
 int mlx5_free_pd(struct ibv_pd *pd);
+struct ibv_mr *mlx5_import_mr(struct ibv_context *context, uint32_t fd,
+			      uint32_t handle);
 struct ibv_pd *mlx5_import_pd(struct ibv_context *context, uint32_t fd,
 			      uint32_t handle);
 
diff --git a/providers/mlx5/verbs.c b/providers/mlx5/verbs.c
index 0f7182e3..d5979170 100644
--- a/providers/mlx5/verbs.c
+++ b/providers/mlx5/verbs.c
@@ -178,6 +178,32 @@  struct ibv_pd *mlx5_alloc_pd(struct ibv_context *context)
 	return &pd->ibv_pd;
 }
 
+struct ibv_mr *mlx5_import_mr(struct ibv_context *context, uint32_t fd,
+			      uint32_t handle)
+{
+	struct ibv_import_mr cmd = {
+		.handle = handle,
+		.type = UVERBS_OBJECT_MR,
+		.fd = fd,
+	};
+	struct ib_uverbs_import_fr_fd_resp resp = {0};
+	struct mlx5_mr *mr;
+	int ret;
+
+	mr = calloc(1, sizeof(*mr));
+	if (!mr)
+		return NULL;
+
+	ret = ibv_cmd_import_mr(context, &mr->vmr, &cmd, sizeof(cmd), &resp,
+				sizeof(resp));
+	if (ret) {
+		free(mr);
+		return NULL;
+	}
+
+	return &mr->vmr.ibv_mr;
+}
+
 struct ibv_pd *mlx5_import_pd(struct ibv_context *context, uint32_t fd,
 			      uint32_t handle)
 {