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      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 */
     79