/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License (the "License").

 * You may not use this file except in compliance with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 */

#ifndef _SYS_IB_MGT_IBCM_IBCM_ARP_H

#define	_SYS_IB_MGT_IBCM_IBCM_ARP_H

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#ifdef	__cplusplus

extern "C" {

#endif

#include <sys/ib/mgt/ibcm/ibcm_impl.h>

#include <sys/modhash.h>

#include <sys/ib/clients/ibd/ibd.h>

#include <sys/strsun.h>

#include <sys/strsubr.h>

#include <sys/socket.h>

#include <sys/stat.h>	/* for S_IFCHR */

#include <inet/common.h>

#include <inet/ip.h>

#include <inet/ip_if.h>

#include <inet/ip_ire.h>

#include <inet/ip_rts.h>

#include <sys/dlpi.h>

#include <net/route.h>

/*

 * IPoIB addr lookup completion function

 */

typedef int (*ibcm_arp_pr_comp_func_t) (void *usr_arg, int status);

#define	IBCM_ARP_MAX_IFNAME_LEN		24

#define	IBCM_ARP_RTM_LEN		0x158

#define	IBCM_ARP_XMIT_COUNT		6

#define	IBCM_ARP_XMIT_INTERVAL		1000	/* timeout in milliseconds */

#define	IBCM_ARP_TIMEOUT \

		((IBCM_ARP_XMIT_COUNT + 1) * IBCM_ARP_XMIT_INTERVAL)

#define	IBCM_ARP_IP6_TIMEOUT		1000000	/* timeout in microseconds */

enum {

	IBCM_ARP_PR_RT_PENDING = 0x01,

	IBCM_ARP_PR_ARP_PENDING = 0x02

};

/*

 * Path record wait queue node definition

 */

typedef struct ibcm_arp_prwqn {

	ibcm_arp_pr_comp_func_t	func;	/* user callback function */

	void			*arg;	/* callback function arg */

	timeout_id_t		timeout_id;

	uint8_t			flags;

	ibt_ip_addr_t		usrc_addr;	/* user supplied src address */

	ibt_ip_addr_t		dst_addr;	/* user supplied dest address */

	ibt_ip_addr_t		src_addr;	/* rts's view of src address */

	char			ifname[IBCM_ARP_MAX_IFNAME_LEN];

	int			ibd_instance;

	uint16_t		ifproto;

	ipoib_mac_t		src_mac;

	ipoib_mac_t		dst_mac;

	uint32_t		localroute;		/* user option */

	uint32_t		bound_dev_if;		/* user option */

	ib_gid_t		sgid;

	ib_gid_t		dgid;

	uint8_t			hw_port;

	uint16_t		pkey;

	int			retries;	/* no. of ND retries for ipv6 */

} ibcm_arp_prwqn_t;

typedef struct ibcm_arp_streams_s {

	kmutex_t		lock;

	kcondvar_t		cv;

	queue_t			*arpqueue;

	vnode_t			*arp_vp;

	int			status;

	ibcm_arp_prwqn_t	*wqnp;

} ibcm_arp_streams_t;

/* GID to IP-Addr and Ip-Addr to GID look-up functions. */

#define	IBCM_ARP_IBD_NAME		"ibd"

#define	IBCM_ARP_IBD_INSTANCES		4

typedef struct ibcm_arp_ip_s {

	uint8_t		ip_inst;

	ib_pkey_t	ip_pkey;

	ib_guid_t	ip_hca_guid;

	ib_gid_t	ip_port_gid;

	sa_family_t	ip_inet_family;

	union {

		struct sockaddr_in	ip_sockaddr;

		struct sockaddr_in6	ip_sockaddr6;

	} ip_sin;

#define	ip_cm_sin		ip_sin.ip_sockaddr

#define	ip_cm_sin6		ip_sin.ip_sockaddr6

} ibcm_arp_ip_t;

typedef struct ibcm_arp_ibd_insts_s {

	uint8_t		ibcm_arp_ibd_alloc;

	uint8_t		ibcm_arp_ibd_cnt;

	ibcm_arp_ip_t	*ibcm_arp_ip;

} ibcm_arp_ibd_insts_t;

ibt_status_t ibcm_arp_get_ibaddr(ipaddr_t srcip, ipaddr_t destip,

    ib_gid_t *sgid, ib_gid_t *dgid);

ibt_status_t ibcm_arp_get_srcip_plist(ibt_ip_path_attr_t *attr,

    ibt_path_flags_t flags, ibtl_cm_port_list_t **list_p);

ibt_status_t ibcm_arp_get_ibds(ibcm_arp_ibd_insts_t *ibdp);

#ifdef	__cplusplus

}

#endif

#endif /* _SYS_IB_MGT_IBCM_IBCM_ARP_H */