ib_addr_freebsd.h

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    1 /*-
    2  * Copyright (c) 2010 Isilon Systems, Inc.
    3  * Copyright (c) 2010 iX Systems, Inc.
    4  * Copyright (c) 2010 Panasas, Inc.
    5  * Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice unmodified, this list of conditions, and the following
   13  *    disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   28  *
   29  * $FreeBSD$
   30  */
   31 #ifndef _RDMA_IB_ADDR_FREEBSD_H
   32 #define _RDMA_IB_ADDR_FREEBSD_H
   33 
   34 #ifdef INET
   35 static inline struct ifnet *
   36 ip_ifp_find(struct vnet *vnet, uint32_t addr)
   37 {
   38         struct sockaddr_in sin;
   39         struct epoch_tracker et;
   40         struct ifaddr *ifa;
   41         struct ifnet *ifp;
   42 
   43         memset(&sin, 0, sizeof(sin));
   44         sin.sin_addr.s_addr = addr;
   45         sin.sin_len = sizeof(sin);
   46         sin.sin_family = AF_INET;
   47         NET_EPOCH_ENTER(et);
   48         CURVNET_SET_QUIET(vnet);
   49         ifa = ifa_ifwithaddr((struct sockaddr *)&sin);
   50         CURVNET_RESTORE();
   51         if (ifa) {
   52                 ifp = ifa->ifa_ifp;
   53                 if_ref(ifp);
   54         } else {
   55                 ifp = NULL;
   56         }
   57         NET_EPOCH_EXIT(et);
   58         return (ifp);
   59 }
   60 #endif
   61 
   62 #ifdef INET6
   63 static inline struct ifnet *
   64 ip6_ifp_find(struct vnet *vnet, struct in6_addr addr, uint16_t scope_id)
   65 {
   66         struct sockaddr_in6 sin6;
   67         struct epoch_tracker et;
   68         struct ifaddr *ifa;
   69         struct ifnet *ifp;
   70 
   71         memset(&sin6, 0, sizeof(sin6));
   72         sin6.sin6_addr = addr;
   73         sin6.sin6_len = sizeof(sin6);
   74         sin6.sin6_family = AF_INET6;
   75         if (IN6_IS_SCOPE_LINKLOCAL(&addr) ||
   76             IN6_IS_ADDR_MC_INTFACELOCAL(&addr)) {
   77                 /* embed the IPv6 scope ID */
   78                 sin6.sin6_addr.s6_addr16[1] = htons(scope_id);
   79         }
   80         NET_EPOCH_ENTER(et);
   81         CURVNET_SET_QUIET(vnet);
   82         ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
   83         CURVNET_RESTORE();
   84         if (ifa != NULL) {
   85                 ifp = ifa->ifa_ifp;
   86                 if_ref(ifp);
   87         } else {
   88                 ifp = NULL;
   89         }
   90         NET_EPOCH_EXIT(et);
   91         return (ifp);
   92 }
   93 #endif
   94 
   95 static inline struct ifnet *
   96 dev_get_by_index(struct vnet *vnet, int if_index)
   97 {
   98         struct epoch_tracker et;
   99         struct ifnet *retval;
  100 
  101         NET_EPOCH_ENTER(et);
  102         CURVNET_SET(vnet);
  103         retval = ifnet_byindex_ref(if_index);
  104         CURVNET_RESTORE();
  105         NET_EPOCH_EXIT(et);
  106 
  107         return (retval);
  108 }
  109 
  110 #endif  /* _RDMA_IB_ADDR_FREEBSD_H */

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FreeBSD/Linux Kernel Cross Reference sys/ofed/include/rdma/ib_addr_freebsd.h

FreeBSD/Linux Kernel Cross Reference
sys/ofed/include/rdma/ib_addr_freebsd.h