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authorIra Weiny <ira.weiny@intel.com>2015-06-06 14:38:34 -0400
committerDoug Ledford <dledford@redhat.com>2015-06-12 14:49:17 -0400
commitf28990bc896a468d7bb09c803db2c4cf0e2db680 (patch)
tree1da44e259e46ec1847c7b1dd9b585195157d8a2e /include/rdma
parent548ead17442f13bdaa679e222ee2fd186e32301d (diff)
IB/mad: Add partial Intel OPA MAD support
Add OPA SMP processing functionality. Define the new OPA SMP format, create support functions for this format using the previously defined helper functions as appropriate. These functions are defined in this patch and used in the final OPA MAD support patch. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/opa_smi.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/include/rdma/opa_smi.h b/include/rdma/opa_smi.h
new file mode 100644
index 000000000000..29063e84c253
--- /dev/null
+++ b/include/rdma/opa_smi.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2014 Intel Corporation. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#if !defined(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_SMI_CLASS_VERSION 0x80
+
+#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;
+
+
+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 */

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