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