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linux/include/rdma/ib_sa.h
Al Viro dd0fc66fb3 [PATCH] gfp flags annotations - part 1 
- added typedef unsigned int __nocast gfp_t;

 - replaced __nocast uses for gfp flags with gfp_t - it gives exactly
   the same warnings as far as sparse is concerned, doesn't change
   generated code (from gcc point of view we replaced unsigned int with
   typedef) and documents what's going on far better.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-08 15:00:57 -07:00

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/*
* Copyright (c) 2004 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Voltaire, Inc. 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.
*
* $Id: ib_sa.h 2811 2005-07-06 18:11:43Z halr $
*/
#ifndef IB_SA_H
#define IB_SA_H
#include <linux/compiler.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_GTE = 0,
IB_SA_LTE = 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
};
enum ib_sa_rate {
IB_SA_RATE_2_5_GBPS = 2,
IB_SA_RATE_5_GBPS = 5,
IB_SA_RATE_10_GBPS = 3,
IB_SA_RATE_20_GBPS = 6,
IB_SA_RATE_30_GBPS = 4,
IB_SA_RATE_40_GBPS = 7,
IB_SA_RATE_60_GBPS = 8,
IB_SA_RATE_80_GBPS = 9,
IB_SA_RATE_120_GBPS = 10
};
static inline int ib_sa_rate_enum_to_int(enum ib_sa_rate rate)
{
switch (rate) {
case IB_SA_RATE_2_5_GBPS: return 1;
case IB_SA_RATE_5_GBPS: return 2;
case IB_SA_RATE_10_GBPS: return 4;
case IB_SA_RATE_20_GBPS: return 8;
case IB_SA_RATE_30_GBPS: return 12;
case IB_SA_RATE_40_GBPS: return 16;
case IB_SA_RATE_60_GBPS: return 24;
case IB_SA_RATE_80_GBPS: return 32;
case IB_SA_RATE_120_GBPS: return 48;
default: return -1;
}
}
/*
* 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.
*/
/* reserved: 0 */
/* reserved: 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)
/* reserved: 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 {
/* reserved */
/* reserved */
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;
/* reserved */
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_query;
void ib_sa_cancel_query(int id, struct ib_sa_query *query);
int ib_sa_path_rec_get(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_mcmember_rec_query(struct ib_device *device, u8 port_num,
u8 method,
struct ib_sa_mcmember_rec *rec,
ib_sa_comp_mask comp_mask,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_mcmember_rec *resp,
void *context),
void *context,
struct ib_sa_query **query);
int ib_sa_service_rec_query(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);
/**
* ib_sa_mcmember_rec_set - Start an MCMember set query
* @device:device to send query on
* @port_num: port number to send query on
* @rec:MCMember Record to send in query
* @comp_mask:component mask to send in query
* @timeout_ms:time to wait for response
* @gfp_mask:GFP mask to use for internal allocations
* @callback:function called when query completes, times out or is
* canceled
* @context:opaque user context passed to callback
* @sa_query:query context, used to cancel query
*
* Send an MCMember Set query to the SA (eg to join a multicast
* group). The callback function will be called when the query
* completes (or fails); status is 0 for a successful response, -EINTR
* if the query is canceled, -ETIMEDOUT is the query timed out, or
* -EIO if an error occurred sending the query. The resp parameter of
* the callback is only valid if status is 0.
*
* If the return value of ib_sa_mcmember_rec_set() is negative, it is
* an error code. Otherwise it is a query ID that can be used to
* cancel the query.
*/
static inline int
ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num,
struct ib_sa_mcmember_rec *rec,
ib_sa_comp_mask comp_mask,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_mcmember_rec *resp,
void *context),
void *context,
struct ib_sa_query **query)
{
return ib_sa_mcmember_rec_query(device, port_num,
IB_MGMT_METHOD_SET,
rec, comp_mask,
timeout_ms, gfp_mask, callback,
context, query);
}
/**
* ib_sa_mcmember_rec_delete - Start an MCMember delete query
* @device:device to send query on
* @port_num: port number to send query on
* @rec:MCMember Record to send in query
* @comp_mask:component mask to send in query
* @timeout_ms:time to wait for response
* @gfp_mask:GFP mask to use for internal allocations
* @callback:function called when query completes, times out or is
* canceled
* @context:opaque user context passed to callback
* @sa_query:query context, used to cancel query
*
* Send an MCMember Delete query to the SA (eg to leave a multicast
* group). The callback function will be called when the query
* completes (or fails); status is 0 for a successful response, -EINTR
* if the query is canceled, -ETIMEDOUT is the query timed out, or
* -EIO if an error occurred sending the query. The resp parameter of
* the callback is only valid if status is 0.
*
* If the return value of ib_sa_mcmember_rec_delete() is negative, it
* is an error code. Otherwise it is a query ID that can be used to
* cancel the query.
*/
static inline int
ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num,
struct ib_sa_mcmember_rec *rec,
ib_sa_comp_mask comp_mask,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_mcmember_rec *resp,
void *context),
void *context,
struct ib_sa_query **query)
{
return ib_sa_mcmember_rec_query(device, port_num,
IB_SA_METHOD_DELETE,
rec, comp_mask,
timeout_ms, gfp_mask, callback,
context, query);
}
#endif /* IB_SA_H */
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