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/*-
* Copyright (c) 2020 Mellanox Technologies. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef __INFINIBAND_H__
#define __INFINIBAND_H__
#include <sys/cdefs.h>
#include <sys/stdint.h>
#define INFINIBAND_ADDR_LEN 20 /* bytes */
#define INFINIBAND_MTU 1500 /* bytes - default value */
#define INFINIBAND_ENC_LEN 4 /* bytes */
#define INFINIBAND_HDR_LEN \
(INFINIBAND_ADDR_LEN + INFINIBAND_ENC_LEN)
#define INFINIBAND_IS_MULTICAST(addr) \
((addr)[4] == 0xff)
#define INFINIBAND_BPF_MTAP(_ifp, _m) \
do { \
if (bpf_peers_present((_ifp)->if_bpf)) { \
M_ASSERTVALID(_m); \
infiniband_bpf_mtap(_ifp, _m); \
} \
} while (0)
struct infiniband_header {
uint8_t ib_hwaddr[INFINIBAND_ADDR_LEN];
uint16_t ib_protocol; /* big endian */
uint16_t ib_reserved; /* zero */
} __packed;
struct infiniband_address {
uint8_t octet[INFINIBAND_ADDR_LEN];
} __packed;
#ifdef _KERNEL
#include <sys/_eventhandler.h>
struct ifnet;
struct mbuf;
extern void infiniband_ifattach(struct ifnet *, const uint8_t *hwaddr, const uint8_t *bcaddr);
extern void infiniband_ifdetach(struct ifnet *);
extern void infiniband_bpf_mtap(struct ifnet *, struct mbuf *);
/* new infiniband interface attached event */
typedef void (*infiniband_ifattach_event_handler_t)(void *, struct ifnet *);
EVENTHANDLER_DECLARE(infiniband_ifattach_event, infiniband_ifattach_event_handler_t);
#endif
#endif /* __INFINIBAND_H__ */
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