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Linux/include/rdma/opa_smi.h

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  1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
  2 /*
  3  * Copyright (c) 2014 Intel Corporation.  All rights reserved.
  4  */
  5 
  6 #ifndef OPA_SMI_H
  7 #define OPA_SMI_H
  8 
  9 #include <rdma/ib_mad.h>
 10 #include <rdma/ib_smi.h>
 11 
 12 #define OPA_SMP_LID_DATA_SIZE                   2016
 13 #define OPA_SMP_DR_DATA_SIZE                    1872
 14 #define OPA_SMP_MAX_PATH_HOPS                   64
 15 
 16 #define OPA_MAX_VLS                             32
 17 #define OPA_MAX_SLS                             32
 18 #define OPA_MAX_SCS                             32
 19 
 20 #define OPA_LID_PERMISSIVE                      cpu_to_be32(0xFFFFFFFF)
 21 
 22 struct opa_smp {
 23         u8      base_version;
 24         u8      mgmt_class;
 25         u8      class_version;
 26         u8      method;
 27         __be16  status;
 28         u8      hop_ptr;
 29         u8      hop_cnt;
 30         __be64  tid;
 31         __be16  attr_id;
 32         __be16  resv;
 33         __be32  attr_mod;
 34         __be64  mkey;
 35         union {
 36                 struct {
 37                         uint8_t data[OPA_SMP_LID_DATA_SIZE];
 38                 } lid;
 39                 struct {
 40                         __be32  dr_slid;
 41                         __be32  dr_dlid;
 42                         u8      initial_path[OPA_SMP_MAX_PATH_HOPS];
 43                         u8      return_path[OPA_SMP_MAX_PATH_HOPS];
 44                         u8      reserved[8];
 45                         u8      data[OPA_SMP_DR_DATA_SIZE];
 46                 } dr;
 47         } route;
 48 } __packed;
 49 
 50 
 51 /* Subnet management attributes */
 52 /* ... */
 53 #define OPA_ATTRIB_ID_NODE_DESCRIPTION          cpu_to_be16(0x0010)
 54 #define OPA_ATTRIB_ID_NODE_INFO                 cpu_to_be16(0x0011)
 55 #define OPA_ATTRIB_ID_PORT_INFO                 cpu_to_be16(0x0015)
 56 #define OPA_ATTRIB_ID_PARTITION_TABLE           cpu_to_be16(0x0016)
 57 #define OPA_ATTRIB_ID_SL_TO_SC_MAP              cpu_to_be16(0x0017)
 58 #define OPA_ATTRIB_ID_VL_ARBITRATION            cpu_to_be16(0x0018)
 59 #define OPA_ATTRIB_ID_SM_INFO                   cpu_to_be16(0x0020)
 60 #define OPA_ATTRIB_ID_CABLE_INFO                cpu_to_be16(0x0032)
 61 #define OPA_ATTRIB_ID_AGGREGATE                 cpu_to_be16(0x0080)
 62 #define OPA_ATTRIB_ID_SC_TO_SL_MAP              cpu_to_be16(0x0082)
 63 #define OPA_ATTRIB_ID_SC_TO_VLR_MAP             cpu_to_be16(0x0083)
 64 #define OPA_ATTRIB_ID_SC_TO_VLT_MAP             cpu_to_be16(0x0084)
 65 #define OPA_ATTRIB_ID_SC_TO_VLNT_MAP            cpu_to_be16(0x0085)
 66 /* ... */
 67 #define OPA_ATTRIB_ID_PORT_STATE_INFO           cpu_to_be16(0x0087)
 68 /* ... */
 69 #define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE      cpu_to_be16(0x008A)
 70 /* ... */
 71 
 72 struct opa_node_description {
 73         u8 data[64];
 74 } __packed;
 75 
 76 struct opa_node_info {
 77         u8      base_version;
 78         u8      class_version;
 79         u8      node_type;
 80         u8      num_ports;
 81         __be32  reserved;
 82         __be64  system_image_guid;
 83         __be64  node_guid;
 84         __be64  port_guid;
 85         __be16  partition_cap;
 86         __be16  device_id;
 87         __be32  revision;
 88         u8      local_port_num;
 89         u8      vendor_id[3];   /* network byte order */
 90 } __packed;
 91 
 92 #define OPA_PARTITION_TABLE_BLK_SIZE 32
 93 
 94 static inline u8
 95 opa_get_smp_direction(struct opa_smp *smp)
 96 {
 97         return ib_get_smp_direction((struct ib_smp *)smp);
 98 }
 99 
100 static inline u8 *opa_get_smp_data(struct opa_smp *smp)
101 {
102         if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
103                 return smp->route.dr.data;
104 
105         return smp->route.lid.data;
106 }
107 
108 static inline size_t opa_get_smp_data_size(struct opa_smp *smp)
109 {
110         if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
111                 return sizeof(smp->route.dr.data);
112 
113         return sizeof(smp->route.lid.data);
114 }
115 
116 static inline size_t opa_get_smp_header_size(struct opa_smp *smp)
117 {
118         if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
119                 return sizeof(*smp) - sizeof(smp->route.dr.data);
120 
121         return sizeof(*smp) - sizeof(smp->route.lid.data);
122 }
123 
124 #endif /* OPA_SMI_H */
125 

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