1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
2 /*
3 * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
4 * University Research and Technology
5 * Corporation. All rights reserved.
6 * Copyright (c) 2004-2005 The University of Tennessee and The University
7 * of Tennessee Research Foundation. All rights
8 * reserved.
9 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
10 * University of Stuttgart. All rights reserved.
11 * Copyright (c) 2004-2006 The Regents of the University of California.
12 * All rights reserved.
13 * Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
14 * Copyright (c) 2016 Los Alamos National Security, LLC. All rights
15 * reserved.
16 * $COPYRIGHT$
17 *
18 * Additional copyrights may follow
19 *
20 * $HEADER$
21 */
22
23 #include "ompi_config.h"
24
25 #include "ompi/mca/pml/base/pml_base_request.h"
26 #include "ompi/mca/pml/base/pml_base_sendreq.h"
27 #include "ompi/mca/pml/base/pml_base_recvreq.h"
28
29 #include "pml_cm.h"
30 #include "pml_cm_sendreq.h"
31 #include "pml_cm_recvreq.h"
32
33
34 int
35 mca_pml_cm_start(size_t count, ompi_request_t** requests)
36 {
37 int rc;
38
39 for (size_t i = 0 ; i < count ; i++) {
40 mca_pml_cm_request_t *pml_request = (mca_pml_cm_request_t*)requests[i];
41 if (OMPI_REQUEST_PML != requests[i]->req_type || NULL == pml_request) {
42 continue;
43 }
44
45 /* start the request */
46 switch (pml_request->req_pml_type) {
47 case MCA_PML_CM_REQUEST_SEND_HEAVY:
48 {
49 mca_pml_cm_hvy_send_request_t* sendreq =
50 (mca_pml_cm_hvy_send_request_t*)pml_request;
51 if (!sendreq->req_send.req_base.req_pml_complete) {
52 ompi_request_t *request;
53
54 /* buffered sends can be mpi complete and pml incomplete. to support this
55 * case we need to allocate a new request. */
56 rc = mca_pml_cm_isend_init (sendreq->req_addr,
57 sendreq->req_count,
58 sendreq->req_send.req_base.req_datatype,
59 sendreq->req_peer,
60 sendreq->req_tag,
61 sendreq->req_send.req_send_mode,
62 sendreq->req_send.req_base.req_comm,
63 &request);
64 if (OPAL_UNLIKELY(OMPI_SUCCESS != rc)) {
65 return rc;
66 }
67
68 /* copy the callback and callback data to the new requests */
69 request->req_complete_cb = pml_request->req_ompi.req_complete_cb;
70 request->req_complete_cb_data = pml_request->req_ompi.req_complete_cb_data;
71
72 /* ensure the old request gets released */
73 pml_request->req_free_called = true;
74
75 sendreq = (mca_pml_cm_hvy_send_request_t *) request;
76 requests[i] = request;
77 }
78
79 /* reset the completion flag */
80 sendreq->req_send.req_base.req_pml_complete = false;
81
82 MCA_PML_CM_HVY_SEND_REQUEST_START(sendreq, rc);
83 if(rc != OMPI_SUCCESS)
84 return rc;
85 break;
86 }
87 case MCA_PML_CM_REQUEST_RECV_HEAVY:
88 {
89 mca_pml_cm_hvy_recv_request_t* recvreq =
90 (mca_pml_cm_hvy_recv_request_t*)pml_request;
91 MCA_PML_CM_HVY_RECV_REQUEST_START(recvreq, rc);
92 if(rc != OMPI_SUCCESS)
93 return rc;
94 break;
95 }
96 default:
97 return OMPI_ERR_REQUEST;
98 }
99 }
100 return OMPI_SUCCESS;
101 }