/* * 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 union ib_gid *ib_addr_get_sgid(struct rdma_dev_addr *dev_addr){	return 	(union ib_gid *) (dev_addr->src_dev_addr + 4);} 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 union ib_gid *ib_addr_get_dgid(struct rdma_dev_addr *dev_addr){	return 	(union ib_gid *) (dev_addr->dst_dev_addr + 4);} 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 */