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-rw-r--r--include/rdma/opa_smi.h124
1 files changed, 124 insertions, 0 deletions
diff --git a/include/rdma/opa_smi.h b/include/rdma/opa_smi.h
new file mode 100644
index 000000000..a9f1b5700
--- /dev/null
+++ b/include/rdma/opa_smi.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2014 Intel Corporation. All rights reserved.
+ */
+
+#ifndef OPA_SMI_H
+#define OPA_SMI_H
+
+#include <rdma/ib_mad.h>
+#include <rdma/ib_smi.h>
+
+#define OPA_SMP_LID_DATA_SIZE 2016
+#define OPA_SMP_DR_DATA_SIZE 1872
+#define OPA_SMP_MAX_PATH_HOPS 64
+
+#define OPA_MAX_VLS 32
+#define OPA_MAX_SLS 32
+#define OPA_MAX_SCS 32
+
+#define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF)
+
+struct opa_smp {
+ u8 base_version;
+ u8 mgmt_class;
+ u8 class_version;
+ u8 method;
+ __be16 status;
+ u8 hop_ptr;
+ u8 hop_cnt;
+ __be64 tid;
+ __be16 attr_id;
+ __be16 resv;
+ __be32 attr_mod;
+ __be64 mkey;
+ union {
+ struct {
+ uint8_t data[OPA_SMP_LID_DATA_SIZE];
+ } lid;
+ struct {
+ __be32 dr_slid;
+ __be32 dr_dlid;
+ u8 initial_path[OPA_SMP_MAX_PATH_HOPS];
+ u8 return_path[OPA_SMP_MAX_PATH_HOPS];
+ u8 reserved[8];
+ u8 data[OPA_SMP_DR_DATA_SIZE];
+ } dr;
+ } route;
+} __packed;
+
+
+/* Subnet management attributes */
+/* ... */
+#define OPA_ATTRIB_ID_NODE_DESCRIPTION cpu_to_be16(0x0010)
+#define OPA_ATTRIB_ID_NODE_INFO cpu_to_be16(0x0011)
+#define OPA_ATTRIB_ID_PORT_INFO cpu_to_be16(0x0015)
+#define OPA_ATTRIB_ID_PARTITION_TABLE cpu_to_be16(0x0016)
+#define OPA_ATTRIB_ID_SL_TO_SC_MAP cpu_to_be16(0x0017)
+#define OPA_ATTRIB_ID_VL_ARBITRATION cpu_to_be16(0x0018)
+#define OPA_ATTRIB_ID_SM_INFO cpu_to_be16(0x0020)
+#define OPA_ATTRIB_ID_CABLE_INFO cpu_to_be16(0x0032)
+#define OPA_ATTRIB_ID_AGGREGATE cpu_to_be16(0x0080)
+#define OPA_ATTRIB_ID_SC_TO_SL_MAP cpu_to_be16(0x0082)
+#define OPA_ATTRIB_ID_SC_TO_VLR_MAP cpu_to_be16(0x0083)
+#define OPA_ATTRIB_ID_SC_TO_VLT_MAP cpu_to_be16(0x0084)
+#define OPA_ATTRIB_ID_SC_TO_VLNT_MAP cpu_to_be16(0x0085)
+/* ... */
+#define OPA_ATTRIB_ID_PORT_STATE_INFO cpu_to_be16(0x0087)
+/* ... */
+#define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE cpu_to_be16(0x008A)
+/* ... */
+
+struct opa_node_description {
+ u8 data[64];
+} __packed;
+
+struct opa_node_info {
+ u8 base_version;
+ u8 class_version;
+ u8 node_type;
+ u8 num_ports;
+ __be32 reserved;
+ __be64 system_image_guid;
+ __be64 node_guid;
+ __be64 port_guid;
+ __be16 partition_cap;
+ __be16 device_id;
+ __be32 revision;
+ u8 local_port_num;
+ u8 vendor_id[3]; /* network byte order */
+} __packed;
+
+#define OPA_PARTITION_TABLE_BLK_SIZE 32
+
+static inline u8
+opa_get_smp_direction(struct opa_smp *smp)
+{
+ return ib_get_smp_direction((struct ib_smp *)smp);
+}
+
+static inline u8 *opa_get_smp_data(struct opa_smp *smp)
+{
+ if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
+ return smp->route.dr.data;
+
+ return smp->route.lid.data;
+}
+
+static inline size_t opa_get_smp_data_size(struct opa_smp *smp)
+{
+ if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
+ return sizeof(smp->route.dr.data);
+
+ return sizeof(smp->route.lid.data);
+}
+
+static inline size_t opa_get_smp_header_size(struct opa_smp *smp)
+{
+ if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
+ return sizeof(*smp) - sizeof(smp->route.dr.data);
+
+ return sizeof(*smp) - sizeof(smp->route.lid.data);
+}
+
+#endif /* OPA_SMI_H */