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C/C++ Source or Header | 2008-12-24 | 13.9 KB | 383 lines

/* * Copyright (c) 2004 Topspin Communications. All rights reserved. * Copyright (c) 2005 Voltaire, Inc. All rights reserved. * Copyright (c) 2006 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. */ #ifndef IB_SA_H #define IB_SA_H #include <linux/completion.h> #include <linux/compiler.h> #include <asm/atomic.h> #include <rdma/ib_verbs.h> #include <rdma/ib_mad.h> enum { IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */ IB_SA_METHOD_GET_TABLE = 0x12, IB_SA_METHOD_GET_TABLE_RESP = 0x92, IB_SA_METHOD_DELETE = 0x15, IB_SA_METHOD_DELETE_RESP = 0x95, IB_SA_METHOD_GET_MULTI = 0x14, IB_SA_METHOD_GET_MULTI_RESP = 0x94, IB_SA_METHOD_GET_TRACE_TBL = 0x13 }; enum { IB_SA_ATTR_CLASS_PORTINFO = 0x01, IB_SA_ATTR_NOTICE = 0x02, IB_SA_ATTR_INFORM_INFO = 0x03, IB_SA_ATTR_NODE_REC = 0x11, IB_SA_ATTR_PORT_INFO_REC = 0x12, IB_SA_ATTR_SL2VL_REC = 0x13, IB_SA_ATTR_SWITCH_REC = 0x14, IB_SA_ATTR_LINEAR_FDB_REC = 0x15, IB_SA_ATTR_RANDOM_FDB_REC = 0x16, IB_SA_ATTR_MCAST_FDB_REC = 0x17, IB_SA_ATTR_SM_INFO_REC = 0x18, IB_SA_ATTR_LINK_REC = 0x20, IB_SA_ATTR_GUID_INFO_REC = 0x30, IB_SA_ATTR_SERVICE_REC = 0x31, IB_SA_ATTR_PARTITION_REC = 0x33, IB_SA_ATTR_PATH_REC = 0x35, IB_SA_ATTR_VL_ARB_REC = 0x36, IB_SA_ATTR_MC_MEMBER_REC = 0x38, IB_SA_ATTR_TRACE_REC = 0x39, IB_SA_ATTR_MULTI_PATH_REC = 0x3a, IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b, IB_SA_ATTR_INFORM_INFO_REC = 0xf3 }; enum ib_sa_selector { IB_SA_GT = 0, IB_SA_LT = 1, IB_SA_EQ = 2, /* * The meaning of "best" depends on the attribute: for * example, for MTU best will return the largest available * MTU, while for packet life time, best will return the * smallest available life time. */ IB_SA_BEST = 3 }; /* * Structures for SA records are named "struct ib_sa_xxx_rec." No * attempt is made to pack structures to match the physical layout of * SA records in SA MADs; all packing and unpacking is handled by the * SA query code. * * For a record with structure ib_sa_xxx_rec, the naming convention * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we * never use different abbreviations or otherwise change the spelling * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY). * * Reserved rows are indicated with comments to help maintainability. */ #define IB_SA_PATH_REC_SERVICE_ID (IB_SA_COMP_MASK( 0) |\ IB_SA_COMP_MASK( 1)) #define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2) #define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3) #define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4) #define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5) #define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6) /* reserved: 7 */ #define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8) #define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9) #define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10) #define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11) #define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12) #define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13) #define IB_SA_PATH_REC_QOS_CLASS IB_SA_COMP_MASK(14) #define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15) #define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16) #define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17) #define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18) #define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19) #define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20) #define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21) #define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22) struct ib_sa_path_rec { __be64 service_id; union ib_gid dgid; union ib_gid sgid; __be16 dlid; __be16 slid; int raw_traffic; /* reserved */ __be32 flow_label; u8 hop_limit; u8 traffic_class; int reversible; u8 numb_path; __be16 pkey; __be16 qos_class; u8 sl; u8 mtu_selector; u8 mtu; u8 rate_selector; u8 rate; u8 packet_life_time_selector; u8 packet_life_time; u8 preference; }; #define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0) #define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1) #define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2) #define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3) #define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4) #define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5) #define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6) #define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7) #define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8) #define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9) #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10) #define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11) #define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12) #define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13) #define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14) #define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15) #define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16) #define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17) struct ib_sa_mcmember_rec { union ib_gid mgid; union ib_gid port_gid; __be32 qkey; __be16 mlid; u8 mtu_selector; u8 mtu; u8 traffic_class; __be16 pkey; u8 rate_selector; u8 rate; u8 packet_life_time_selector; u8 packet_life_time; u8 sl; __be32 flow_label; u8 hop_limit; u8 scope; u8 join_state; int proxy_join; }; /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */ #define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0) #define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1) #define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2) /* reserved: 3 */ #define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4) #define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5) #define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6) #define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7) #define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8) #define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9) #define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10) #define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11) #define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12) #define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13) #define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14) #define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15) #define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16) #define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17) #define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18) #define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19) #define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20) #define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21) #define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22) #define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23) #define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24) #define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25) #define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26) #define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27) #define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28) #define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29) #define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30) #define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31) #define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32) #define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33) #define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34) #define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35) #define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36) #define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF struct ib_sa_service_rec { u64 id; union ib_gid gid; __be16 pkey; /* reserved */ u32 lease; u8 key[16]; u8 name[64]; u8 data8[16]; u16 data16[8]; u32 data32[4]; u64 data64[2]; }; struct ib_sa_client { atomic_t users; struct completion comp; }; /** * ib_sa_register_client - Register an SA client. */ void ib_sa_register_client(struct ib_sa_client *client); /** * ib_sa_unregister_client - Deregister an SA client. * @client: Client object to deregister. */ void ib_sa_unregister_client(struct ib_sa_client *client); struct ib_sa_query; void ib_sa_cancel_query(int id, struct ib_sa_query *query); int ib_sa_path_rec_get(struct ib_sa_client *client, struct ib_device *device, u8 port_num, struct ib_sa_path_rec *rec, ib_sa_comp_mask comp_mask, int timeout_ms, gfp_t gfp_mask, void (*callback)(int status, struct ib_sa_path_rec *resp, void *context), void *context, struct ib_sa_query **query); int ib_sa_service_rec_query(struct ib_sa_client *client, struct ib_device *device, u8 port_num, u8 method, struct ib_sa_service_rec *rec, ib_sa_comp_mask comp_mask, int timeout_ms, gfp_t gfp_mask, void (*callback)(int status, struct ib_sa_service_rec *resp, void *context), void *context, struct ib_sa_query **sa_query); struct ib_sa_multicast { struct ib_sa_mcmember_rec rec; ib_sa_comp_mask comp_mask; int (*callback)(int status, struct ib_sa_multicast *multicast); void *context; }; /** * ib_sa_join_multicast - Initiates a join request to the specified multicast * group. * @client: SA client * @device: Device associated with the multicast group. * @port_num: Port on the specified device to associate with the multicast * group. * @rec: SA multicast member record specifying group attributes. * @comp_mask: Component mask indicating which group attributes of %rec are * valid. * @gfp_mask: GFP mask for memory allocations. * @callback: User callback invoked once the join operation completes. * @context: User specified context stored with the ib_sa_multicast structure. * * This call initiates a multicast join request with the SA for the specified * multicast group. If the join operation is started successfully, it returns * an ib_sa_multicast structure that is used to track the multicast operation. * Users must free this structure by calling ib_free_multicast, even if the * join operation later fails. (The callback status is non-zero.) * * If the join operation fails; status will be non-zero, with the following * failures possible: * -ETIMEDOUT: The request timed out. * -EIO: An error occurred sending the query. * -EINVAL: The MCMemberRecord values differed from the existing group's. * -ENETRESET: Indicates that an fatal error has occurred on the multicast * group, and the user must rejoin the group to continue using it. */ struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client, struct ib_device *device, u8 port_num, struct ib_sa_mcmember_rec *rec, ib_sa_comp_mask comp_mask, gfp_t gfp_mask, int (*callback)(int status, struct ib_sa_multicast *multicast), void *context); /** * ib_free_multicast - Frees the multicast tracking structure, and releases * any reference on the multicast group. * @multicast: Multicast tracking structure allocated by ib_join_multicast. * * This call blocks until the multicast identifier is destroyed. It may * not be called from within the multicast callback; however, returning a non- * zero value from the callback will result in destroying the multicast * tracking structure. */ void ib_sa_free_multicast(struct ib_sa_multicast *multicast); /** * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and * returns it if found. * @device: Device associated with the multicast group. * @port_num: Port on the specified device to associate with the multicast * group. * @mgid: MGID of multicast group. * @rec: Location to copy SA multicast member record. */ int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num, union ib_gid *mgid, struct ib_sa_mcmember_rec *rec); /** * ib_init_ah_from_mcmember - Initialize address handle attributes based on * an SA multicast member record. */ int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num, struct ib_sa_mcmember_rec *rec, struct ib_ah_attr *ah_attr); /** * ib_init_ah_from_path - Initialize address handle attributes based on an SA * path record. */ int ib_init_ah_from_path(struct ib_device *device, u8 port_num, struct ib_sa_path_rec *rec, struct ib_ah_attr *ah_attr); #endif /* IB_SA_H */