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[PATCH] IB: Add Service Record support to SA client
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Add Service Record support to SA client

Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Hal Rosenstock authored and Linus Torvalds committed Jul 27, 2005
1 parent fa619a7 commit cbae32c
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Showing 2 changed files with 236 additions and 5 deletions.
166 changes: 164 additions & 2 deletions drivers/infiniband/core/sa_query.c
View file
Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
/*
* 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
Expand Down Expand Up @@ -29,7 +30,7 @@
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* $Id: sa_query.c 1389 2004-12-27 22:56:47Z roland $
* $Id: sa_query.c 2811 2005-07-06 18:11:43Z halr $
*/

#include <linux/module.h>
Expand Down Expand Up @@ -79,6 +80,12 @@ struct ib_sa_query {
int id;
};

struct ib_sa_service_query {
void (*callback)(int, struct ib_sa_service_rec *, void *);
void *context;
struct ib_sa_query sa_query;
};

struct ib_sa_path_query {
void (*callback)(int, struct ib_sa_path_rec *, void *);
void *context;
Expand Down Expand Up @@ -320,6 +327,54 @@ static const struct ib_field mcmember_rec_table[] = {
.size_bits = 23 },
};

#define SERVICE_REC_FIELD(field) \
.struct_offset_bytes = offsetof(struct ib_sa_service_rec, field), \
.struct_size_bytes = sizeof ((struct ib_sa_service_rec *) 0)->field, \
.field_name = "sa_service_rec:" #field

static const struct ib_field service_rec_table[] = {
{ SERVICE_REC_FIELD(id),
.offset_words = 0,
.offset_bits = 0,
.size_bits = 64 },
{ SERVICE_REC_FIELD(gid),
.offset_words = 2,
.offset_bits = 0,
.size_bits = 128 },
{ SERVICE_REC_FIELD(pkey),
.offset_words = 6,
.offset_bits = 0,
.size_bits = 16 },
{ SERVICE_REC_FIELD(lease),
.offset_words = 7,
.offset_bits = 0,
.size_bits = 32 },
{ SERVICE_REC_FIELD(key),
.offset_words = 8,
.offset_bits = 0,
.size_bits = 128 },
{ SERVICE_REC_FIELD(name),
.offset_words = 12,
.offset_bits = 0,
.size_bits = 64*8 },
{ SERVICE_REC_FIELD(data8),
.offset_words = 28,
.offset_bits = 0,
.size_bits = 16*8 },
{ SERVICE_REC_FIELD(data16),
.offset_words = 32,
.offset_bits = 0,
.size_bits = 8*16 },
{ SERVICE_REC_FIELD(data32),
.offset_words = 36,
.offset_bits = 0,
.size_bits = 4*32 },
{ SERVICE_REC_FIELD(data64),
.offset_words = 40,
.offset_bits = 0,
.size_bits = 2*64 },
};

static void free_sm_ah(struct kref *kref)
{
struct ib_sa_sm_ah *sm_ah = container_of(kref, struct ib_sa_sm_ah, ref);
Expand Down Expand Up @@ -443,7 +498,6 @@ static int send_mad(struct ib_sa_query *query, int timeout_ms)
.remote_qpn = 1,
.remote_qkey = IB_QP1_QKEY,
.timeout_ms = timeout_ms,
.retries = 0
}
}
};
Expand Down Expand Up @@ -596,6 +650,114 @@ int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
}
EXPORT_SYMBOL(ib_sa_path_rec_get);

static void ib_sa_service_rec_callback(struct ib_sa_query *sa_query,
int status,
struct ib_sa_mad *mad)
{
struct ib_sa_service_query *query =
container_of(sa_query, struct ib_sa_service_query, sa_query);

if (mad) {
struct ib_sa_service_rec rec;

ib_unpack(service_rec_table, ARRAY_SIZE(service_rec_table),
mad->data, &rec);
query->callback(status, &rec, query->context);
} else
query->callback(status, NULL, query->context);
}

static void ib_sa_service_rec_release(struct ib_sa_query *sa_query)
{
kfree(sa_query->mad);
kfree(container_of(sa_query, struct ib_sa_service_query, sa_query));
}

/**
* ib_sa_service_rec_query - Start Service Record operation
* @device:device to send request on
* @port_num: port number to send request on
* @method:SA method - should be get, set, or delete
* @rec:Service Record to send in request
* @comp_mask:component mask to send in request
* @timeout_ms:time to wait for response
* @gfp_mask:GFP mask to use for internal allocations
* @callback:function called when request completes, times out or is
* canceled
* @context:opaque user context passed to callback
* @sa_query:request context, used to cancel request
*
* Send a Service Record set/get/delete to the SA to register,
* unregister or query a service record.
* The callback function will be called when the request 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_service_rec_query() is negative, it is an
* error code. Otherwise it is a request ID that can be used to cancel
* the 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, int 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_service_query *query;
struct ib_sa_device *sa_dev = ib_get_client_data(device, &sa_client);
struct ib_sa_port *port = &sa_dev->port[port_num - sa_dev->start_port];
struct ib_mad_agent *agent = port->agent;
int ret;

if (method != IB_MGMT_METHOD_GET &&
method != IB_MGMT_METHOD_SET &&
method != IB_SA_METHOD_DELETE)
return -EINVAL;

query = kmalloc(sizeof *query, gfp_mask);
if (!query)
return -ENOMEM;
query->sa_query.mad = kmalloc(sizeof *query->sa_query.mad, gfp_mask);
if (!query->sa_query.mad) {
kfree(query);
return -ENOMEM;
}

query->callback = callback;
query->context = context;

init_mad(query->sa_query.mad, agent);

query->sa_query.callback = callback ? ib_sa_service_rec_callback : NULL;
query->sa_query.release = ib_sa_service_rec_release;
query->sa_query.port = port;
query->sa_query.mad->mad_hdr.method = method;
query->sa_query.mad->mad_hdr.attr_id =
cpu_to_be16(IB_SA_ATTR_SERVICE_REC);
query->sa_query.mad->sa_hdr.comp_mask = comp_mask;

ib_pack(service_rec_table, ARRAY_SIZE(service_rec_table),
rec, query->sa_query.mad->data);

*sa_query = &query->sa_query;

ret = send_mad(&query->sa_query, timeout_ms);
if (ret < 0) {
*sa_query = NULL;
kfree(query->sa_query.mad);
kfree(query);
}

return ret;
}
EXPORT_SYMBOL(ib_sa_service_rec_query);

static void ib_sa_mcmember_rec_callback(struct ib_sa_query *sa_query,
int status,
struct ib_sa_mad *mad)
Expand Down
75 changes: 72 additions & 3 deletions drivers/infiniband/include/ib_sa.h
View file
Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
/*
* 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
Expand Down Expand Up @@ -29,7 +30,7 @@
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* $Id: ib_sa.h 1389 2004-12-27 22:56:47Z roland $
* $Id: ib_sa.h 2811 2005-07-06 18:11:43Z halr $
*/

#ifndef IB_SA_H
Expand All @@ -41,9 +42,11 @@
#include <ib_mad.h>

enum {
IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */
IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */

IB_SA_METHOD_DELETE = 0x15
IB_SA_METHOD_GET_TABLE = 0x12,
IB_SA_METHOD_GET_TABLE_RESP = 0x92,
IB_SA_METHOD_DELETE = 0x15
};

enum ib_sa_selector {
Expand Down Expand Up @@ -191,6 +194,61 @@ struct ib_sa_mcmember_rec {
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;
u16 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);
Expand All @@ -216,6 +274,17 @@ int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
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, int 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
Expand Down

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