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 
37 #if !defined(IB_SMI_H)
38 #define IB_SMI_H
39 
40 #include <rdma/ib_mad.h>
41 
42 #define IB_SMP_DATA_SIZE			64
43 #define IB_SMP_MAX_PATH_HOPS			64
44 
45 struct ib_smp {
46 	u8	base_version;
47 	u8	mgmt_class;
48 	u8	class_version;
49 	u8	method;
50 	__be16	status;
51 	u8	hop_ptr;
52 	u8	hop_cnt;
53 	__be64	tid;
54 	__be16	attr_id;
55 	__be16	resv;
56 	__be32	attr_mod;
57 	__be64	mkey;
58 	__be16	dr_slid;
59 	__be16	dr_dlid;
60 	u8	reserved[28];
61 	u8	data[IB_SMP_DATA_SIZE];
62 	u8	initial_path[IB_SMP_MAX_PATH_HOPS];
63 	u8	return_path[IB_SMP_MAX_PATH_HOPS];
64 } __attribute__ ((packed));
65 
66 #define IB_SMP_DIRECTION			cpu_to_be16(0x8000)
67 
68 /* Subnet management attributes */
69 #define IB_SMP_ATTR_NOTICE			cpu_to_be16(0x0002)
70 #define IB_SMP_ATTR_NODE_DESC			cpu_to_be16(0x0010)
71 #define IB_SMP_ATTR_NODE_INFO			cpu_to_be16(0x0011)
72 #define IB_SMP_ATTR_SWITCH_INFO			cpu_to_be16(0x0012)
73 #define IB_SMP_ATTR_GUID_INFO			cpu_to_be16(0x0014)
74 #define IB_SMP_ATTR_PORT_INFO			cpu_to_be16(0x0015)
75 #define IB_SMP_ATTR_PKEY_TABLE			cpu_to_be16(0x0016)
76 #define IB_SMP_ATTR_SL_TO_VL_TABLE		cpu_to_be16(0x0017)
77 #define IB_SMP_ATTR_VL_ARB_TABLE		cpu_to_be16(0x0018)
78 #define IB_SMP_ATTR_LINEAR_FORWARD_TABLE	cpu_to_be16(0x0019)
79 #define IB_SMP_ATTR_RANDOM_FORWARD_TABLE	cpu_to_be16(0x001A)
80 #define IB_SMP_ATTR_MCAST_FORWARD_TABLE		cpu_to_be16(0x001B)
81 #define IB_SMP_ATTR_SM_INFO			cpu_to_be16(0x0020)
82 #define IB_SMP_ATTR_VENDOR_DIAG			cpu_to_be16(0x0030)
83 #define IB_SMP_ATTR_LED_INFO			cpu_to_be16(0x0031)
84 #define IB_SMP_ATTR_VENDOR_MASK			cpu_to_be16(0xFF00)
85 
86 struct ib_port_info {
87 	__be64 mkey;
88 	__be64 gid_prefix;
89 	__be16 lid;
90 	__be16 sm_lid;
91 	__be32 cap_mask;
92 	__be16 diag_code;
93 	__be16 mkey_lease_period;
94 	u8 local_port_num;
95 	u8 link_width_enabled;
96 	u8 link_width_supported;
97 	u8 link_width_active;
98 	u8 linkspeed_portstate;			/* 4 bits, 4 bits */
99 	u8 portphysstate_linkdown;		/* 4 bits, 4 bits */
100 	u8 mkeyprot_resv_lmc;			/* 2 bits, 3, 3 */
101 	u8 linkspeedactive_enabled;		/* 4 bits, 4 bits */
102 	u8 neighbormtu_mastersmsl;		/* 4 bits, 4 bits */
103 	u8 vlcap_inittype;			/* 4 bits, 4 bits */
104 	u8 vl_high_limit;
105 	u8 vl_arb_high_cap;
106 	u8 vl_arb_low_cap;
107 	u8 inittypereply_mtucap;		/* 4 bits, 4 bits */
108 	u8 vlstallcnt_hoqlife;			/* 3 bits, 5 bits */
109 	u8 operationalvl_pei_peo_fpi_fpo;	/* 4 bits, 1, 1, 1, 1 */
110 	__be16 mkey_violations;
111 	__be16 pkey_violations;
112 	__be16 qkey_violations;
113 	u8 guid_cap;
114 	u8 clientrereg_resv_subnetto;		/* 1 bit, 2 bits, 5 */
115 	u8 resv_resptimevalue;			/* 3 bits, 5 bits */
116 	u8 localphyerrors_overrunerrors;	/* 4 bits, 4 bits */
117 	__be16 max_credit_hint;
118 	u8 resv;
119 	u8 link_roundtrip_latency[3];
120 };
121 
122 static inline u8
ib_get_smp_direction(struct ib_smp * smp)123 ib_get_smp_direction(struct ib_smp *smp)
124 {
125 	return ((smp->status & IB_SMP_DIRECTION) == IB_SMP_DIRECTION);
126 }
127 
128 #endif /* IB_SMI_H */
129