This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / rdma / ib_addr.h

diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
new file mode 100644 (file)
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--- /dev/null
+++ b/include/rdma/ib_addr.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2005 Voltaire Inc.  All rights reserved.
+ * Copyright (c) 2005 Intel Corporation.  All rights reserved.
+ *
+ * This Software is licensed under one of the following licenses:
+ *
+ * 1) under the terms of the "Common Public License 1.0" a copy of which is
+ *    available from the Open Source Initiative, see
+ *    http://www.opensource.org/licenses/cpl.php.
+ *
+ * 2) under the terms of the "The BSD License" a copy of which is
+ *    available from the Open Source Initiative, see
+ *    http://www.opensource.org/licenses/bsd-license.php.
+ *
+ * 3) under the terms of the "GNU General Public License (GPL) Version 2" a
+ *    copy of which is available from the Open Source Initiative, see
+ *    http://www.opensource.org/licenses/gpl-license.php.
+ *
+ * Licensee has the right to choose one of the above licenses.
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice and one of the license notices.
+ *
+ * Redistributions in binary form must reproduce both the above copyright
+ * notice, one of the license notices in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ */
+
+#if !defined(IB_ADDR_H)
+#define IB_ADDR_H
+
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/netdevice.h>
+#include <linux/socket.h>
+#include <rdma/ib_verbs.h>
+
+struct rdma_dev_addr {
+       unsigned char src_dev_addr[MAX_ADDR_LEN];
+       unsigned char dst_dev_addr[MAX_ADDR_LEN];
+       unsigned char broadcast[MAX_ADDR_LEN];
+       enum ib_node_type dev_type;
+};
+
+/**
+ * rdma_translate_ip - Translate a local IP address to an RDMA hardware
+ *   address.
+ */
+int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr);
+
+/**
+ * rdma_resolve_ip - Resolve source and destination IP addresses to
+ *   RDMA hardware addresses.
+ * @src_addr: An optional source address to use in the resolution.  If a
+ *   source address is not provided, a usable address will be returned via
+ *   the callback.
+ * @dst_addr: The destination address to resolve.
+ * @addr: A reference to a data location that will receive the resolved
+ *   addresses.  The data location must remain valid until the callback has
+ *   been invoked.
+ * @timeout_ms: Amount of time to wait for the address resolution to complete.
+ * @callback: Call invoked once address resolution has completed, timed out,
+ *   or been canceled.  A status of 0 indicates success.
+ * @context: User-specified context associated with the call.
+ */
+int rdma_resolve_ip(struct sockaddr *src_addr, struct sockaddr *dst_addr,
+                   struct rdma_dev_addr *addr, int timeout_ms,
+                   void (*callback)(int status, struct sockaddr *src_addr,
+                                    struct rdma_dev_addr *addr, void *context),
+                   void *context);
+
+void rdma_addr_cancel(struct rdma_dev_addr *addr);
+
+static inline int ip_addr_size(struct sockaddr *addr)
+{
+       return addr->sa_family == AF_INET6 ?
+              sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in);
+}
+
+static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr)
+{
+       return ((u16)dev_addr->broadcast[8] << 8) | (u16)dev_addr->broadcast[9];
+}
+
+static inline void ib_addr_set_pkey(struct rdma_dev_addr *dev_addr, u16 pkey)
+{
+       dev_addr->broadcast[8] = pkey >> 8;
+       dev_addr->broadcast[9] = (unsigned char) pkey;
+}
+
+static inline void ib_addr_get_sgid(struct rdma_dev_addr *dev_addr,
+                                   union ib_gid *gid)
+{
+       memcpy(gid, dev_addr->src_dev_addr + 4, sizeof *gid);
+}
+
+static inline void ib_addr_set_sgid(struct rdma_dev_addr *dev_addr,
+                                   union ib_gid *gid)
+{
+       memcpy(dev_addr->src_dev_addr + 4, gid, sizeof *gid);
+}
+
+static inline void ib_addr_get_dgid(struct rdma_dev_addr *dev_addr,
+                                   union ib_gid *gid)
+{
+       memcpy(gid, dev_addr->dst_dev_addr + 4, sizeof *gid);
+}
+
+static inline void ib_addr_set_dgid(struct rdma_dev_addr *dev_addr,
+                                   union ib_gid *gid)
+{
+       memcpy(dev_addr->dst_dev_addr + 4, gid, sizeof *gid);
+}
+
+#endif /* IB_ADDR_H */