include/sys/mac_ib.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #ifndef _SYS_MAC_ETHER_H
  27 #define _SYS_MAC_ETHER_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 /*
  32  * Ethernet MAC Plugin
  33  */
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 #ifdef  _KERNEL
  40
  41 #define MAC_PLUGIN_IDENT_IB     "mac_ib"
  42
  43 #define MAC_IB_MAX_802_SAP      255
  44 #define MAC_IB_ETHERTYPE_MAX    65535
  45 #define MAC_IB_GID_SIZE         10
  46 #define MAC_IB_BROADCAST_GID    0xFFFFFFFF
  47
  48 /*
  49  * In order to transmit the datagram to correct destination, an extra
  50  * header including destination address is required. IB does not provide an
  51  * interface for sending a link layer header directly to the IB link and the
  52  * link layer header received from the IB link is missing information that
  53  * GLDv3 requires. So mac_ib plugin defines a "soft" header as below.
  54  */
  55 typedef struct ib_addrs {
  56         ipoib_mac_t     ipib_src;
  57         ipoib_mac_t     ipib_dst;
  58 } ib_addrs_t;
  59
  60 typedef struct ib_header_info {
  61         union {
  62                 ipoib_pgrh_t    ipib_grh;
  63                 ib_addrs_t      ipib_addrs;
  64         } ipib_prefix;
  65         ipoib_hdr_t     ipib_rhdr;
  66 } ib_header_info_t;
  67
  68 #define ib_dst  ipib_prefix.ipib_addrs.ipib_dst
  69 #define ib_src  ipib_prefix.ipib_addrs.ipib_src
  70 #define ib_grh  ipib_prefix.ipib_grh
  71
  72 #endif  /* _KERNEL */
  73
  74 #ifdef  __cplusplus
  75 }
  76 #endif
  77
  78 #endif /* _SYS_MAC_ETHER_H */