1/*
  2 * Copyright (c) 2006 - 2009 Mellanox Technology Inc.  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
 34#ifndef IB_DM_MAD_H
 35#define IB_DM_MAD_H
 36
 37#include <linux/types.h>
 38
 39#include <rdma/ib_mad.h>
 40
 41enum {
 42	/*
 43	 * See also section 13.4.7 Status Field, table 115 MAD Common Status
 44	 * Field Bit Values and also section 16.3.1.1 Status Field in the
 45	 * InfiniBand Architecture Specification.
 46	 */
 47	DM_MAD_STATUS_UNSUP_METHOD = 0x0008,
 48	DM_MAD_STATUS_UNSUP_METHOD_ATTR = 0x000c,
 49	DM_MAD_STATUS_INVALID_FIELD = 0x001c,
 50	DM_MAD_STATUS_NO_IOC = 0x0100,
 51
 52	/*
 53	 * See also the Device Management chapter, section 16.3.3 Attributes,
 54	 * table 279 Device Management Attributes in the InfiniBand
 55	 * Architecture Specification.
 56	 */
 57	DM_ATTR_CLASS_PORT_INFO = 0x01,
 58	DM_ATTR_IOU_INFO = 0x10,
 59	DM_ATTR_IOC_PROFILE = 0x11,
 60	DM_ATTR_SVC_ENTRIES = 0x12
 61};
 62
 63struct ib_dm_hdr {
 64	u8 reserved[28];
 65};
 66
 67/*
 68 * Structure of management datagram sent by the SRP target implementation.
 69 * Contains a management datagram header, reliable multi-packet transaction
 70 * protocol (RMPP) header and ib_dm_hdr. Notes:
 71 * - The SRP target implementation does not use RMPP or ib_dm_hdr when sending
 72 *   management datagrams.
 73 * - The header size must be exactly 64 bytes (IB_MGMT_DEVICE_HDR), since this
 74 *   is the header size that is passed to ib_create_send_mad() in ib_srpt.c.
 75 * - The maximum supported size for a management datagram when not using RMPP
 76 *   is 256 bytes -- 64 bytes header and 192 (IB_MGMT_DEVICE_DATA) bytes data.
 77 */
 78struct ib_dm_mad {
 79	struct ib_mad_hdr mad_hdr;
 80	struct ib_rmpp_hdr rmpp_hdr;
 81	struct ib_dm_hdr dm_hdr;
 82	u8 data[IB_MGMT_DEVICE_DATA];
 83};
 84
 85/*
 86 * IOUnitInfo as defined in section 16.3.3.3 IOUnitInfo of the InfiniBand
 87 * Architecture Specification.
 88 */
 89struct ib_dm_iou_info {
 90	__be16 change_id;
 91	u8 max_controllers;
 92	u8 op_rom;
 93	u8 controller_list[128];
 94};
 95
 96/*
 97 * IOControllerprofile as defined in section 16.3.3.4 IOControllerProfile of
 98 * the InfiniBand Architecture Specification.
 99 */
100struct ib_dm_ioc_profile {
101	__be64 guid;
102	__be32 vendor_id;
103	__be32 device_id;
104	__be16 device_version;
105	__be16 reserved1;
106	__be32 subsys_vendor_id;
107	__be32 subsys_device_id;
108	__be16 io_class;
109	__be16 io_subclass;
110	__be16 protocol;
111	__be16 protocol_version;
112	__be16 service_conn;
113	__be16 initiators_supported;
114	__be16 send_queue_depth;
115	u8 reserved2;
116	u8 rdma_read_depth;
117	__be32 send_size;
118	__be32 rdma_size;
119	u8 op_cap_mask;
120	u8 svc_cap_mask;
121	u8 num_svc_entries;
122	u8 reserved3[9];
123	u8 id_string[64];
124};
125
126struct ib_dm_svc_entry {
127	u8 name[40];
128	__be64 id;
129};
130
131/*
132 * See also section 16.3.3.5 ServiceEntries in the InfiniBand Architecture
133 * Specification. See also section B.7, table B.8 in the T10 SRP r16a document.
134 */
135struct ib_dm_svc_entries {
136	struct ib_dm_svc_entry service_entries[4];
137};
138
139#endif