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 #if !defined(OPA_SMI_H) 34 #define OPA_SMI_H 35 36 #include <rdma/ib_mad.h> 37 #include <rdma/ib_smi.h> 38 39 #define OPA_SMP_LID_DATA_SIZE 2016 40 #define OPA_SMP_DR_DATA_SIZE 1872 41 #define OPA_SMP_MAX_PATH_HOPS 64 42 43 #define OPA_SMI_CLASS_VERSION 0x80 44 45 #define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF) 46 47 struct opa_smp { 48 u8 base_version; 49 u8 mgmt_class; 50 u8 class_version; 51 u8 method; 52 __be16 status; 53 u8 hop_ptr; 54 u8 hop_cnt; 55 __be64 tid; 56 __be16 attr_id; 57 __be16 resv; 58 __be32 attr_mod; 59 __be64 mkey; 60 union { 61 struct { 62 uint8_t data[OPA_SMP_LID_DATA_SIZE]; 63 } lid; 64 struct { 65 __be32 dr_slid; 66 __be32 dr_dlid; 67 u8 initial_path[OPA_SMP_MAX_PATH_HOPS]; 68 u8 return_path[OPA_SMP_MAX_PATH_HOPS]; 69 u8 reserved[8]; 70 u8 data[OPA_SMP_DR_DATA_SIZE]; 71 } dr; 72 } route; 73 } __packed; 74 75 76 static inline u8 77 opa_get_smp_direction(struct opa_smp *smp) 78 { 79 return ib_get_smp_direction((struct ib_smp *)smp); 80 } 81 82 static inline u8 *opa_get_smp_data(struct opa_smp *smp) 83 { 84 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 85 return smp->route.dr.data; 86 87 return smp->route.lid.data; 88 } 89 90 static inline size_t opa_get_smp_data_size(struct opa_smp *smp) 91 { 92 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 93 return sizeof(smp->route.dr.data); 94 95 return sizeof(smp->route.lid.data); 96 } 97 98 static inline size_t opa_get_smp_header_size(struct opa_smp *smp) 99 { 100 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 101 return sizeof(*smp) - sizeof(smp->route.dr.data); 102 103 return sizeof(*smp) - sizeof(smp->route.lid.data); 104 } 105 106 #endif /* OPA_SMI_H */ 107