386 строки
14 KiB
C
386 строки
14 KiB
C
/*
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* Copyright (c) 2004 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Voltaire, Inc. All rights reserved.
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* Copyright (c) 2006 Intel Corporation. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* $Id: ib_sa.h 2811 2005-07-06 18:11:43Z halr $
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*/
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#ifndef IB_SA_H
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#define IB_SA_H
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#include <linux/completion.h>
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#include <linux/compiler.h>
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#include <asm/atomic.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_mad.h>
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enum {
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IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */
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IB_SA_METHOD_GET_TABLE = 0x12,
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IB_SA_METHOD_GET_TABLE_RESP = 0x92,
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IB_SA_METHOD_DELETE = 0x15,
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IB_SA_METHOD_DELETE_RESP = 0x95,
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IB_SA_METHOD_GET_MULTI = 0x14,
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IB_SA_METHOD_GET_MULTI_RESP = 0x94,
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IB_SA_METHOD_GET_TRACE_TBL = 0x13
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};
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enum {
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IB_SA_ATTR_CLASS_PORTINFO = 0x01,
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IB_SA_ATTR_NOTICE = 0x02,
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IB_SA_ATTR_INFORM_INFO = 0x03,
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IB_SA_ATTR_NODE_REC = 0x11,
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IB_SA_ATTR_PORT_INFO_REC = 0x12,
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IB_SA_ATTR_SL2VL_REC = 0x13,
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IB_SA_ATTR_SWITCH_REC = 0x14,
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IB_SA_ATTR_LINEAR_FDB_REC = 0x15,
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IB_SA_ATTR_RANDOM_FDB_REC = 0x16,
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IB_SA_ATTR_MCAST_FDB_REC = 0x17,
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IB_SA_ATTR_SM_INFO_REC = 0x18,
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IB_SA_ATTR_LINK_REC = 0x20,
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IB_SA_ATTR_GUID_INFO_REC = 0x30,
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IB_SA_ATTR_SERVICE_REC = 0x31,
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IB_SA_ATTR_PARTITION_REC = 0x33,
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IB_SA_ATTR_PATH_REC = 0x35,
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IB_SA_ATTR_VL_ARB_REC = 0x36,
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IB_SA_ATTR_MC_MEMBER_REC = 0x38,
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IB_SA_ATTR_TRACE_REC = 0x39,
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IB_SA_ATTR_MULTI_PATH_REC = 0x3a,
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IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b,
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IB_SA_ATTR_INFORM_INFO_REC = 0xf3
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};
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enum ib_sa_selector {
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IB_SA_GT = 0,
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IB_SA_LT = 1,
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IB_SA_EQ = 2,
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/*
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* The meaning of "best" depends on the attribute: for
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* example, for MTU best will return the largest available
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* MTU, while for packet life time, best will return the
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* smallest available life time.
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*/
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IB_SA_BEST = 3
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};
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/*
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* Structures for SA records are named "struct ib_sa_xxx_rec." No
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* attempt is made to pack structures to match the physical layout of
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* SA records in SA MADs; all packing and unpacking is handled by the
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* SA query code.
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*
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* For a record with structure ib_sa_xxx_rec, the naming convention
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* for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
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* never use different abbreviations or otherwise change the spelling
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* of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
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*
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* Reserved rows are indicated with comments to help maintainability.
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*/
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/* reserved: 0 */
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/* reserved: 1 */
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#define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2)
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#define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3)
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#define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4)
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#define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5)
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#define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6)
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/* reserved: 7 */
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#define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8)
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#define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9)
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#define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10)
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#define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11)
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#define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12)
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#define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13)
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/* reserved: 14 */
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#define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15)
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#define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16)
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#define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17)
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#define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18)
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#define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19)
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#define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20)
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#define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21)
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#define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22)
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struct ib_sa_path_rec {
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/* reserved */
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/* reserved */
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union ib_gid dgid;
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union ib_gid sgid;
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__be16 dlid;
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__be16 slid;
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int raw_traffic;
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/* reserved */
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__be32 flow_label;
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u8 hop_limit;
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u8 traffic_class;
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int reversible;
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u8 numb_path;
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__be16 pkey;
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/* reserved */
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u8 sl;
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u8 mtu_selector;
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u8 mtu;
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u8 rate_selector;
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u8 rate;
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u8 packet_life_time_selector;
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u8 packet_life_time;
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u8 preference;
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};
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#define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0)
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#define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1)
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#define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2)
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#define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3)
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#define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4)
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#define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5)
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#define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6)
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#define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7)
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#define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8)
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#define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9)
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#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10)
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#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11)
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#define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12)
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#define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13)
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#define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14)
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#define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15)
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#define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16)
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#define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17)
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struct ib_sa_mcmember_rec {
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union ib_gid mgid;
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union ib_gid port_gid;
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__be32 qkey;
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__be16 mlid;
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u8 mtu_selector;
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u8 mtu;
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u8 traffic_class;
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__be16 pkey;
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u8 rate_selector;
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u8 rate;
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u8 packet_life_time_selector;
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u8 packet_life_time;
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u8 sl;
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__be32 flow_label;
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u8 hop_limit;
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u8 scope;
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u8 join_state;
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int proxy_join;
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};
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/* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */
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#define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0)
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#define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1)
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#define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2)
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/* reserved: 3 */
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#define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4)
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#define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5)
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#define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21)
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#define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29)
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#define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30)
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#define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31)
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#define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32)
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#define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33)
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#define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34)
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#define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35)
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#define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36)
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#define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF
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struct ib_sa_service_rec {
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u64 id;
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union ib_gid gid;
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__be16 pkey;
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/* reserved */
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u32 lease;
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u8 key[16];
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u8 name[64];
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u8 data8[16];
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u16 data16[8];
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u32 data32[4];
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u64 data64[2];
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};
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struct ib_sa_client {
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atomic_t users;
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struct completion comp;
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};
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/**
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* ib_sa_register_client - Register an SA client.
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*/
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void ib_sa_register_client(struct ib_sa_client *client);
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/**
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* ib_sa_unregister_client - Deregister an SA client.
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* @client: Client object to deregister.
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*/
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void ib_sa_unregister_client(struct ib_sa_client *client);
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struct ib_sa_query;
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void ib_sa_cancel_query(int id, struct ib_sa_query *query);
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int ib_sa_path_rec_get(struct ib_sa_client *client,
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struct ib_device *device, u8 port_num,
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struct ib_sa_path_rec *rec,
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ib_sa_comp_mask comp_mask,
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int timeout_ms, gfp_t gfp_mask,
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void (*callback)(int status,
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struct ib_sa_path_rec *resp,
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void *context),
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void *context,
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struct ib_sa_query **query);
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int ib_sa_service_rec_query(struct ib_sa_client *client,
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struct ib_device *device, u8 port_num,
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u8 method,
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struct ib_sa_service_rec *rec,
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ib_sa_comp_mask comp_mask,
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int timeout_ms, gfp_t gfp_mask,
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void (*callback)(int status,
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struct ib_sa_service_rec *resp,
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void *context),
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void *context,
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struct ib_sa_query **sa_query);
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struct ib_sa_multicast {
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struct ib_sa_mcmember_rec rec;
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ib_sa_comp_mask comp_mask;
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int (*callback)(int status,
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struct ib_sa_multicast *multicast);
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void *context;
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};
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/**
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* ib_sa_join_multicast - Initiates a join request to the specified multicast
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* group.
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* @client: SA client
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* @device: Device associated with the multicast group.
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* @port_num: Port on the specified device to associate with the multicast
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* group.
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* @rec: SA multicast member record specifying group attributes.
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* @comp_mask: Component mask indicating which group attributes of %rec are
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* valid.
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* @gfp_mask: GFP mask for memory allocations.
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* @callback: User callback invoked once the join operation completes.
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* @context: User specified context stored with the ib_sa_multicast structure.
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*
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* This call initiates a multicast join request with the SA for the specified
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* multicast group. If the join operation is started successfully, it returns
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* an ib_sa_multicast structure that is used to track the multicast operation.
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* Users must free this structure by calling ib_free_multicast, even if the
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* join operation later fails. (The callback status is non-zero.)
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*
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* If the join operation fails; status will be non-zero, with the following
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* failures possible:
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* -ETIMEDOUT: The request timed out.
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* -EIO: An error occurred sending the query.
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* -EINVAL: The MCMemberRecord values differed from the existing group's.
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* -ENETRESET: Indicates that an fatal error has occurred on the multicast
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* group, and the user must rejoin the group to continue using it.
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*/
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struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client,
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struct ib_device *device, u8 port_num,
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struct ib_sa_mcmember_rec *rec,
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ib_sa_comp_mask comp_mask, gfp_t gfp_mask,
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int (*callback)(int status,
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struct ib_sa_multicast
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*multicast),
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void *context);
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/**
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* ib_free_multicast - Frees the multicast tracking structure, and releases
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* any reference on the multicast group.
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* @multicast: Multicast tracking structure allocated by ib_join_multicast.
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*
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* This call blocks until the multicast identifier is destroyed. It may
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* not be called from within the multicast callback; however, returning a non-
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* zero value from the callback will result in destroying the multicast
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* tracking structure.
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*/
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void ib_sa_free_multicast(struct ib_sa_multicast *multicast);
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/**
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* ib_get_mcmember_rec - Looks up a multicast member record by its MGID and
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* returns it if found.
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* @device: Device associated with the multicast group.
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* @port_num: Port on the specified device to associate with the multicast
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* group.
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* @mgid: MGID of multicast group.
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* @rec: Location to copy SA multicast member record.
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*/
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int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num,
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union ib_gid *mgid, struct ib_sa_mcmember_rec *rec);
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/**
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* ib_init_ah_from_mcmember - Initialize address handle attributes based on
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* an SA multicast member record.
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*/
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int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
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struct ib_sa_mcmember_rec *rec,
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struct ib_ah_attr *ah_attr);
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/**
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* ib_init_ah_from_path - Initialize address handle attributes based on an SA
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* path record.
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*/
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int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
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struct ib_sa_path_rec *rec,
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struct ib_ah_attr *ah_attr);
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#endif /* IB_SA_H */
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