xref: /openbmc/linux/drivers/infiniband/core/smi.h (revision 34816ad9)
1 /*
2  * Copyright (c) 2004 Mellanox Technologies Ltd.  All rights reserved.
3  * Copyright (c) 2004 Infinicon Corporation.  All rights reserved.
4  * Copyright (c) 2004 Intel Corporation.  All rights reserved.
5  * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
6  * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
7  *
8  * This software is available to you under a choice of one of two
9  * licenses.  You may choose to be licensed under the terms of the GNU
10  * General Public License (GPL) Version 2, available from the file
11  * COPYING in the main directory of this source tree, or the
12  * OpenIB.org BSD license below:
13  *
14  *     Redistribution and use in source and binary forms, with or
15  *     without modification, are permitted provided that the following
16  *     conditions are met:
17  *
18  *      - Redistributions of source code must retain the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer.
21  *
22  *      - Redistributions in binary form must reproduce the above
23  *        copyright notice, this list of conditions and the following
24  *        disclaimer in the documentation and/or other materials
25  *        provided with the distribution.
26  *
27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34  * SOFTWARE.
35  *
36  * $Id: smi.h 1389 2004-12-27 22:56:47Z roland $
37  */
38 
39 #ifndef __SMI_H_
40 #define __SMI_H_
41 
42 #include <rdma/ib_smi.h>
43 
44 int smi_handle_dr_smp_recv(struct ib_smp *smp,
45 			   u8 node_type,
46 			   int port_num,
47 			   int phys_port_cnt);
48 extern int smi_check_forward_dr_smp(struct ib_smp *smp);
49 extern int smi_handle_dr_smp_send(struct ib_smp *smp,
50 				  u8 node_type,
51 				  int port_num);
52 extern int smi_check_local_dr_smp(struct ib_smp *smp,
53 				  struct ib_device *device,
54 				  int port_num);
55 
56 /*
57  * Return 1 if the SMP should be handled by the local SMA/SM via process_mad
58  */
59 static inline int smi_check_local_smp(struct ib_mad_agent *mad_agent,
60                          	      struct ib_smp *smp)
61 {
62 	/* C14-9:3 -- We're at the end of the DR segment of path */
63 	/* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */
64 	return ((mad_agent->device->process_mad &&
65 		!ib_get_smp_direction(smp) &&
66 		(smp->hop_ptr == smp->hop_cnt + 1)));
67 }
68 
69 #endif	/* __SMI_H_ */
70