xref: /illumos-gate/usr/src/uts/common/sys/dld.h (revision 8eea8e29cc4374d1ee24c25a07f45af132db3499)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_SYS_DLD_H
28 #define	_SYS_DLD_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * Data-Link Driver (public header).
34  */
35 
36 #include <sys/types.h>
37 #include <sys/stream.h>
38 #include <sys/mac.h>
39 #include <sys/dls.h>
40 #include <sys/ght.h>
41 #include <net/if.h>
42 
43 #ifdef	__cplusplus
44 extern "C" {
45 #endif
46 
47 /*
48  * Data-Link Driver Information (text emitted by modinfo(1m))
49  */
50 #define	DLD_INFO	"Data-Link Driver v%I%"
51 
52 /*
53  * Options: To enable an option set the property name to a non-zero value
54  *	    in kernel/drv/dld.conf.
55  */
56 
57 /*
58  * Prevent creation of DLPI style 1 provider nodes (thus forcing stacks such
59  * as TCP/IP to use style 2 nodes).
60  */
61 #define	DLD_PROP_NO_STYLE1	"no-style-1"
62 
63 /*
64  * Prevent use of the IP fast-path (direct M_DATA transmit).
65  */
66 #define	DLD_PROP_NO_FASTPATH	"no-fastpath"
67 
68 /*
69  * Prevent advertising of the DL_CAPAB_POLL capability.
70  */
71 #define	DLD_PROP_NO_POLL	"no-poll"
72 
73 /*
74  * Prevent advertising of the DL_CAPAB_ZEROCOPY capability.
75  */
76 #define	DLD_PROP_NO_ZEROCOPY	"no-zerocopy"
77 
78 /*
79  * The name of the driver.
80  */
81 #define	DLD_DRIVER_NAME		"dld"
82 
83 /*
84  * The name of the control minor node of dld.
85  */
86 #define	DLD_CONTROL_MINOR_NAME	"ctl"
87 #define	DLD_CONTROL_MINOR	0
88 #define	DLD_CONTROL_DEV		"/devices/pseudo/" DLD_DRIVER_NAME "@0:" \
89 				DLD_CONTROL_MINOR_NAME
90 
91 /*
92  * IOCTL codes and data structures.
93  */
94 #define	DLDIOC		('D' << 24 | 'L' << 16 | 'D' << 8)
95 
96 #define	DLDIOCCREATE	(DLDIOC | 0x01)
97 
98 typedef struct dld_ioc_create {
99 	char		dic_name[IFNAMSIZ];
100 	char		dic_dev[MAXNAMELEN];
101 	uint_t		dic_port;
102 	uint16_t	dic_vid;
103 } dld_ioc_create_t;
104 
105 #define	DLDIOCDESTROY	(DLDIOC | 0x02)
106 
107 typedef struct dld_ioc_destroy {
108 	char	did_name[IFNAMSIZ];
109 } dld_ioc_destroy_t;
110 
111 #define	DLDIOCATTR	(DLDIOC | 0x03)
112 
113 typedef struct dld_ioc_attr {
114 	char		dia_name[IFNAMSIZ];
115 	char		dia_dev[MAXNAMELEN];
116 	uint_t		dia_port;
117 	uint16_t	dia_vid;
118 } dld_ioc_attr_t;
119 
120 #ifdef	__cplusplus
121 }
122 #endif
123 
124 #endif	/* _SYS_DLD_H */
125