infiniband.h (2507B) - Raw
1 /*- 2 * Copyright (c) 2020 Mellanox Technologies. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #ifndef __INFINIBAND_H__ 27 #define __INFINIBAND_H__ 28 29 #include <sys/cdefs.h> 30 #include <sys/stdint.h> 31 32 #define INFINIBAND_ADDR_LEN 20 /* bytes */ 33 #define INFINIBAND_MTU 1500 /* bytes - default value */ 34 35 #define INFINIBAND_ENC_LEN 4 /* bytes */ 36 #define INFINIBAND_HDR_LEN \ 37 (INFINIBAND_ADDR_LEN + INFINIBAND_ENC_LEN) 38 39 #define INFINIBAND_IS_MULTICAST(addr) \ 40 ((addr)[4] == 0xff) 41 42 struct infiniband_header { 43 uint8_t ib_hwaddr[INFINIBAND_ADDR_LEN]; 44 uint16_t ib_protocol; /* big endian */ 45 uint16_t ib_reserved; /* zero */ 46 } __packed; 47 48 struct infiniband_address { 49 uint8_t octet[INFINIBAND_ADDR_LEN]; 50 } __packed; 51 52 #ifdef _KERNEL 53 54 #include <sys/_eventhandler.h> 55 56 struct ifnet; 57 struct mbuf; 58 59 extern void infiniband_ifattach(struct ifnet *, const uint8_t *hwaddr, const uint8_t *bcaddr); 60 extern void infiniband_ifdetach(struct ifnet *); 61 extern void infiniband_bpf_mtap(struct ifnet *, struct mbuf *); 62 63 /* new infiniband interface attached event */ 64 typedef void (*infiniband_ifattach_event_handler_t)(void *, struct ifnet *); 65 66 EVENTHANDLER_DECLARE(infiniband_ifattach_event, infiniband_ifattach_event_handler_t); 67 68 #endif 69 70 #endif /* __INFINIBAND_H__ */