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

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 rxe related MR attributes.

Signed-off-by: Yuval Shaia <[e-mail]>
Signed-off-by: Shamir Rabinovitch <[e-mail]>
Signed-off-by: Shamir Rabinovitch <[e-mail]>
---
 providers/rxe/rxe.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

Patch

diff --git a/providers/rxe/rxe.c b/providers/rxe/rxe.c
index 6a8194a4..aefaef5c 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,