3bf4fb820d
Make MTU field in SA PathRecord and MCMemberRecord a u8 rather than an enum to avoid complications with endianness. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
309 lines
10 KiB
C
309 lines
10 KiB
C
/*
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* Copyright (c) 2004 Topspin Communications. 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 1389 2004-12-27 22:56:47Z roland $
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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/compiler.h>
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#include <ib_verbs.h>
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#include <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_DELETE = 0x15
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};
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enum ib_sa_selector {
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IB_SA_GTE = 0,
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IB_SA_LTE = 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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enum ib_sa_rate {
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IB_SA_RATE_2_5_GBPS = 2,
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IB_SA_RATE_5_GBPS = 5,
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IB_SA_RATE_10_GBPS = 3,
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IB_SA_RATE_20_GBPS = 6,
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IB_SA_RATE_30_GBPS = 4,
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IB_SA_RATE_40_GBPS = 7,
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IB_SA_RATE_60_GBPS = 8,
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IB_SA_RATE_80_GBPS = 9,
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IB_SA_RATE_120_GBPS = 10
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};
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static inline int ib_sa_rate_enum_to_int(enum ib_sa_rate rate)
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{
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switch (rate) {
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case IB_SA_RATE_2_5_GBPS: return 1;
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case IB_SA_RATE_5_GBPS: return 2;
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case IB_SA_RATE_10_GBPS: return 4;
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case IB_SA_RATE_20_GBPS: return 8;
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case IB_SA_RATE_30_GBPS: return 12;
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case IB_SA_RATE_40_GBPS: return 16;
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case IB_SA_RATE_60_GBPS: return 24;
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case IB_SA_RATE_80_GBPS: return 32;
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case IB_SA_RATE_120_GBPS: return 48;
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default: return -1;
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}
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}
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typedef u64 __bitwise ib_sa_comp_mask;
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#define IB_SA_COMP_MASK(n) ((__force ib_sa_comp_mask) cpu_to_be64(1ull << n))
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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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u16 dlid;
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u16 slid;
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int raw_traffic;
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/* reserved */
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u32 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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u16 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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u32 qkey;
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u16 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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u16 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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u32 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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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_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, int 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_mcmember_rec_query(struct ib_device *device, u8 port_num,
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u8 method,
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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 timeout_ms, int gfp_mask,
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void (*callback)(int status,
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struct ib_sa_mcmember_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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/**
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* ib_sa_mcmember_rec_set - Start an MCMember set query
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* @device:device to send query on
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* @port_num: port number to send query on
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* @rec:MCMember Record to send in query
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* @comp_mask:component mask to send in query
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* @timeout_ms:time to wait for response
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* @gfp_mask:GFP mask to use for internal allocations
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* @callback:function called when query completes, times out or is
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* canceled
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* @context:opaque user context passed to callback
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* @sa_query:query context, used to cancel query
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*
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* Send an MCMember Set query to the SA (eg to join a multicast
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* group). The callback function will be called when the query
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* completes (or fails); status is 0 for a successful response, -EINTR
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* if the query is canceled, -ETIMEDOUT is the query timed out, or
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* -EIO if an error occurred sending the query. The resp parameter of
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* the callback is only valid if status is 0.
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*
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* If the return value of ib_sa_mcmember_rec_set() is negative, it is
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* an error code. Otherwise it is a query ID that can be used to
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* cancel the query.
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*/
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static inline int
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ib_sa_mcmember_rec_set(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,
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int timeout_ms, int gfp_mask,
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void (*callback)(int status,
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struct ib_sa_mcmember_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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{
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return ib_sa_mcmember_rec_query(device, port_num,
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IB_MGMT_METHOD_SET,
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rec, comp_mask,
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timeout_ms, gfp_mask, callback,
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context, query);
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}
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/**
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* ib_sa_mcmember_rec_delete - Start an MCMember delete query
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* @device:device to send query on
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* @port_num: port number to send query on
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* @rec:MCMember Record to send in query
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* @comp_mask:component mask to send in query
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* @timeout_ms:time to wait for response
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* @gfp_mask:GFP mask to use for internal allocations
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* @callback:function called when query completes, times out or is
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* canceled
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* @context:opaque user context passed to callback
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* @sa_query:query context, used to cancel query
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*
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* Send an MCMember Delete query to the SA (eg to leave a multicast
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* group). The callback function will be called when the query
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* completes (or fails); status is 0 for a successful response, -EINTR
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* if the query is canceled, -ETIMEDOUT is the query timed out, or
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* -EIO if an error occurred sending the query. The resp parameter of
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* the callback is only valid if status is 0.
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*
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* If the return value of ib_sa_mcmember_rec_delete() is negative, it
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* is an error code. Otherwise it is a query ID that can be used to
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* cancel the query.
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*/
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static inline int
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ib_sa_mcmember_rec_delete(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,
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int timeout_ms, int gfp_mask,
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void (*callback)(int status,
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struct ib_sa_mcmember_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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{
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return ib_sa_mcmember_rec_query(device, port_num,
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IB_SA_METHOD_DELETE,
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rec, comp_mask,
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timeout_ms, gfp_mask, callback,
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context, query);
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}
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#endif /* IB_SA_H */
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