netdev - [PATCH v5 20/28] ib/sa: Export function to pack a path record into wire format

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Message-Id: <1369847374-12176-21-git-send-email-sean.hefty@intel.com>
Date:	Wed, 29 May 2013 10:09:26 -0700
From:	sean.hefty@...el.com
To:	roland@...estorage.com, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org
Cc:	Sean Hefty <sean.hefty@...el.com>
Subject: [PATCH v5 20/28] ib/sa: Export function to pack a path record into wire format

From: Sean Hefty <sean.hefty@...el.com>

Allow converting from struct ib_sa_path_rec to the IB defined
SA path record wire format.  This will be used to report path
data from the rdma cm into user space.

Signed-off-by: Sean Hefty <sean.hefty@...el.com>
---
 drivers/infiniband/core/sa_query.c |    6 ++++++
 include/rdma/ib_sa.h               |    7 +++++++
 2 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 934f45e..9838ca4 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -652,6 +652,12 @@ void ib_sa_unpack_path(void *attribute, struct ib_sa_path_rec *rec)
 }
 EXPORT_SYMBOL(ib_sa_unpack_path);
 
+void ib_sa_pack_path(struct ib_sa_path_rec *rec, void *attribute)
+{
+	ib_pack(path_rec_table, ARRAY_SIZE(path_rec_table), rec, attribute);
+}
+EXPORT_SYMBOL(ib_sa_pack_path);
+
 static void ib_sa_path_rec_callback(struct ib_sa_query *sa_query,
 				    int status,
 				    struct ib_sa_mad *mad)
diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h
index 8275e53..125f871 100644
--- a/include/rdma/ib_sa.h
+++ b/include/rdma/ib_sa.h
@@ -402,6 +402,12 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
 			 struct ib_ah_attr *ah_attr);
 
 /**
+ * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec
+ * to IB MAD wire format.
+ */
+void ib_sa_pack_path(struct ib_sa_path_rec *rec, void *attribute);
+
+/**
  * ib_sa_unpack_path - Convert a path record from MAD format to struct
  * ib_sa_path_rec.
  */
@@ -418,4 +424,5 @@ int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
 					       void *context),
 			      void *context,
 			      struct ib_sa_query **sa_query);
+
 #endif /* IB_SA_H */
-- 
1.7.3

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