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[v1,rdma-core,11/12] rxe: Implementation of import MR callback

Message ID 20190821142639.5807-12-yuval.shaia@oracle.com (mailing list archive)
State Changes Requested
Headers show
Series Shared PD and MR | expand

Commit Message

Yuval Shaia Aug. 21, 2019, 2:26 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 rxe 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/rxe/rxe.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
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Patch

diff --git a/providers/rxe/rxe.c b/providers/rxe/rxe.c
index 3ea4ff08..c1cdde07 100644
--- a/providers/rxe/rxe.c
+++ b/providers/rxe/rxe.c
@@ -112,6 +112,32 @@  static struct ibv_pd *rxe_alloc_pd(struct ibv_context *context)
 	return pd;
 }
 
+static struct ibv_mr *rxe_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 = {};
+	struct verbs_mr *vmr;
+	int ret;
+
+	vmr = calloc(1, sizeof(*vmr));
+	if (!vmr)
+		return NULL;
+
+	ret = ibv_cmd_import_mr(context, vmr, &cmd, sizeof(cmd), &resp,
+				sizeof(resp));
+	if (ret) {
+		free(vmr);
+		return NULL;
+	}
+
+	return &vmr->ibv_mr;
+}
+
 static struct ibv_pd *rxe_import_pd(struct ibv_context *context, uint32_t fd,
 				    uint32_t handle)
 {
@@ -862,6 +888,7 @@  static const struct verbs_context_ops rxe_ctx_ops = {
 	.query_port = rxe_query_port,
 	.alloc_pd = rxe_alloc_pd,
 	.dealloc_pd = rxe_dealloc_pd,
+	.import_mr = rxe_import_mr,
 	.import_pd = rxe_import_pd,
 	.reg_mr = rxe_reg_mr,
 	.dereg_mr = rxe_dereg_mr,