/*
 * 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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef _SYS_IB_MGT_IBCM_IBCM_ARP_H
#define _SYS_IB_MGT_IBCM_IBCM_ARP_H

#ifdef  __cplusplus
extern "C" {
#endif

#include <sys/ib/mgt/ibcm/ibcm_impl.h>
#include <sys/ib/clients/ibd/ibd.h>
#include <inet/ip2mac.h>
#include <inet/ip6.h>

#define IBCM_ARP_MAX_IFNAME_LEN         24

#define IBCM_H2N_GID(gid) \
{ \
        uint32_t        *ptr; \
        ptr = (uint32_t *)&gid.gid_prefix; \
        gid.gid_prefix = (uint64_t)(((uint64_t)ntohl(ptr[0]) << 32) | \
                        (ntohl(ptr[1]))); \
        ptr = (uint32_t *)&gid.gid_guid; \
        gid.gid_guid = (uint64_t)(((uint64_t)ntohl(ptr[0]) << 32) | \
                        (ntohl(ptr[1]))); \
}

#define IBCM_ARP_PR_RT_PENDING          0x01
#define IBCM_ARP_PR_RESOLVE_PENDING     0x02

/*
 * Path record wait queue node definition
 */
typedef struct ibcm_arp_prwqn {
        struct ibcm_arp_streams_s *ib_str;
        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 */
        ibt_ip_addr_t           gateway;        /* rts returned gateway addr */
        ibt_ip_addr_t           netmask;        /* rts returned netmask */
        char                    ifname[IBCM_ARP_MAX_IFNAME_LEN];
        uint16_t                ifproto;
        ipoib_mac_t             src_mac;
        ipoib_mac_t             dst_mac;
        ib_gid_t                sgid;
        ib_gid_t                dgid;
        ip2mac_id_t             ip2mac_id;
} ibcm_arp_prwqn_t;

typedef struct ibcm_arp_streams_s {
        kmutex_t                lock;
        kcondvar_t              cv;
        int                     status;
        boolean_t               done;
        ibcm_arp_prwqn_t        *wqnp;
} ibcm_arp_streams_t;

typedef struct ibcm_arp_ip_s {
        datalink_id_t   ip_linkid;
        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
        zoneid_t        ip_zoneid;
} 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(zoneid_t zoneid, ibt_ip_addr_t srcip,
    ibt_ip_addr_t destip, ib_gid_t *sgid, ib_gid_t *dgid,
    ibt_ip_addr_t *saddr_p);
ibt_status_t ibcm_arp_get_ibds(ibcm_arp_ibd_insts_t *ibdp, sa_family_t fam);
void ibcm_arp_free_ibds(ibcm_arp_ibd_insts_t *ibds);

#ifdef  __cplusplus
}
#endif

#endif /* _SYS_IB_MGT_IBCM_IBCM_ARP_H */