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 | u32 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, u32 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_ */ |
79 | |