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Diffstat (limited to 'drivers/infiniband/core/sa_query.c')
-rw-r--r--drivers/infiniband/core/sa_query.c166
1 files changed, 164 insertions, 2 deletions
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 4ec80443702..18caf61d884 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -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
@@ -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>
@@ -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;
@@ -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);
@@ -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
}
}
};
@@ -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)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-23 17:42:24 +0000