infiniband.h

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    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  * $FreeBSD$
   26  */
   27 
   28 #ifndef __INFINIBAND_H__
   29 #define __INFINIBAND_H__
   30 
   31 #include <sys/cdefs.h>
   32 #include <sys/stdint.h>
   33 
   34 #define INFINIBAND_ADDR_LEN     20      /* bytes */
   35 #define INFINIBAND_MTU          1500    /* bytes - default value */
   36 
   37 #define INFINIBAND_ENC_LEN      4       /* bytes */
   38 #define INFINIBAND_HDR_LEN \
   39     (INFINIBAND_ADDR_LEN + INFINIBAND_ENC_LEN)
   40 
   41 #define INFINIBAND_IS_MULTICAST(addr) \
   42     ((addr)[4] == 0xff)
   43 
   44 #define INFINIBAND_BPF_MTAP(_ifp, _m)                   \
   45 do {                                                    \
   46         if (bpf_peers_present((_ifp)->if_bpf)) {        \
   47                 M_ASSERTVALID(_m);                      \
   48                 infiniband_bpf_mtap(_ifp, _m);          \
   49         }                                               \
   50 } while (0)
   51 
   52 struct infiniband_header {
   53         uint8_t ib_hwaddr[INFINIBAND_ADDR_LEN];
   54         uint16_t ib_protocol;           /* big endian */
   55         uint16_t ib_reserved;           /* zero */
   56 } __packed;
   57 
   58 struct infiniband_address {
   59         uint8_t octet[INFINIBAND_ADDR_LEN];
   60 } __packed;
   61 
   62 #ifdef _KERNEL
   63 
   64 #include <sys/_eventhandler.h>
   65 
   66 struct ifnet;
   67 struct mbuf;
   68 
   69 extern void infiniband_ifattach(struct ifnet *, const uint8_t *hwaddr, const uint8_t *bcaddr);
   70 extern void infiniband_ifdetach(struct ifnet *);
   71 extern void infiniband_bpf_mtap(struct ifnet *, struct mbuf *);
   72 
   73 /* new infiniband interface attached event */
   74 typedef void (*infiniband_ifattach_event_handler_t)(void *, struct ifnet *);
   75 
   76 EVENTHANDLER_DECLARE(infiniband_ifattach_event, infiniband_ifattach_event_handler_t);
   77 
   78 #endif
   79 
   80 #endif                                  /* __INFINIBAND_H__ */

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FreeBSD/Linux Kernel Cross Reference sys/net/infiniband.h

FreeBSD/Linux Kernel Cross Reference
sys/net/infiniband.h