1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3 *
4 * Copyright (c) 2014 Intel Corporation. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35 #ifndef __OPA_SMI_H_
36 #define __OPA_SMI_H_
37
38 #include <rdma/ib_smi.h>
39 #include <rdma/opa_smi.h>
40
41 #include "smi.h"
42
43 enum smi_action opa_smi_handle_dr_smp_recv(struct opa_smp *smp, bool is_switch,
44 int port_num, int phys_port_cnt);
45 int opa_smi_get_fwd_port(struct opa_smp *smp);
46 extern enum smi_forward_action opa_smi_check_forward_dr_smp(struct opa_smp *smp);
47 extern enum smi_action opa_smi_handle_dr_smp_send(struct opa_smp *smp,
48 bool is_switch, int port_num);
49
50 /*
51 * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM
52 * via process_mad
53 */
opa_smi_check_local_smp(struct opa_smp * smp,struct ib_device * device)54 static inline enum smi_action opa_smi_check_local_smp(struct opa_smp *smp,
55 struct ib_device *device)
56 {
57 /* C14-9:3 -- We're at the end of the DR segment of path */
58 /* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */
59 return (device->process_mad &&
60 !opa_get_smp_direction(smp) &&
61 (smp->hop_ptr == smp->hop_cnt + 1)) ?
62 IB_SMI_HANDLE : IB_SMI_DISCARD;
63 }
64
65 /*
66 * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM
67 * via process_mad
68 */
opa_smi_check_local_returning_smp(struct opa_smp * smp,struct ib_device * device)69 static inline enum smi_action opa_smi_check_local_returning_smp(struct opa_smp *smp,
70 struct ib_device *device)
71 {
72 /* C14-13:3 -- We're at the end of the DR segment of path */
73 /* C14-13:4 -- Hop Pointer == 0 -> give to SM */
74 return (device->process_mad &&
75 opa_get_smp_direction(smp) &&
76 !smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD;
77 }
78
79 #endif /* __OPA_SMI_H_ */
80