xref: /titanic_51/usr/src/uts/common/io/sundlpi.c (revision 7aec1d6e253b21f9e9b7ef68b4d81ab9859b51fe)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  *  Common Sun DLPI routines.
31  */
32 
33 #include	<sys/types.h>
34 #include	<sys/sysmacros.h>
35 #include	<sys/byteorder.h>
36 #include	<sys/systm.h>
37 #include	<sys/stream.h>
38 #include	<sys/strsun.h>
39 #include	<sys/dlpi.h>
40 
41 #define		DLADDRL		(80)
42 
43 void
44 dlbindack(
45 	queue_t		*wq,
46 	mblk_t		*mp,
47 	t_scalar_t	sap,
48 	void		*addrp,
49 	t_uscalar_t	addrlen,
50 	t_uscalar_t	maxconind,
51 	t_uscalar_t	xidtest)
52 {
53 	union DL_primitives	*dlp;
54 	size_t			size;
55 
56 	size = sizeof (dl_bind_ack_t) + addrlen;
57 	if ((mp = mexchange(wq, mp, size, M_PCPROTO, DL_BIND_ACK)) == NULL)
58 		return;
59 
60 	dlp = (union DL_primitives *)mp->b_rptr;
61 	dlp->bind_ack.dl_sap = sap;
62 	dlp->bind_ack.dl_addr_length = addrlen;
63 	dlp->bind_ack.dl_addr_offset = sizeof (dl_bind_ack_t);
64 	dlp->bind_ack.dl_max_conind = maxconind;
65 	dlp->bind_ack.dl_xidtest_flg = xidtest;
66 	if (addrlen != 0)
67 		bcopy(addrp, mp->b_rptr + sizeof (dl_bind_ack_t), addrlen);
68 
69 	qreply(wq, mp);
70 }
71 
72 void
73 dlokack(
74 	queue_t		*wq,
75 	mblk_t		*mp,
76 	t_uscalar_t	correct_primitive)
77 {
78 	union DL_primitives	*dlp;
79 
80 	if ((mp = mexchange(wq, mp, sizeof (dl_ok_ack_t), M_PCPROTO,
81 	    DL_OK_ACK)) == NULL)
82 		return;
83 	dlp = (union DL_primitives *)mp->b_rptr;
84 	dlp->ok_ack.dl_correct_primitive = correct_primitive;
85 	qreply(wq, mp);
86 }
87 
88 void
89 dlerrorack(
90 	queue_t		*wq,
91 	mblk_t		*mp,
92 	t_uscalar_t	error_primitive,
93 	t_uscalar_t	error,
94 	t_uscalar_t	unix_errno)
95 {
96 	union DL_primitives	*dlp;
97 
98 	if ((mp = mexchange(wq, mp, sizeof (dl_error_ack_t), M_PCPROTO,
99 	    DL_ERROR_ACK)) == NULL)
100 		return;
101 	dlp = (union DL_primitives *)mp->b_rptr;
102 	dlp->error_ack.dl_error_primitive = error_primitive;
103 	dlp->error_ack.dl_errno = error;
104 	dlp->error_ack.dl_unix_errno = unix_errno;
105 	qreply(wq, mp);
106 }
107 
108 void
109 dluderrorind(
110 	queue_t		*wq,
111 	mblk_t		*mp,
112 	void		*addrp,
113 	t_uscalar_t	addrlen,
114 	t_uscalar_t	error,
115 	t_uscalar_t	unix_errno)
116 {
117 	union DL_primitives	*dlp;
118 	char			buf[DLADDRL];
119 	size_t			size;
120 
121 	if (addrlen > DLADDRL)
122 		addrlen = DLADDRL;
123 
124 	bcopy(addrp, buf, addrlen);
125 
126 	size = sizeof (dl_uderror_ind_t) + addrlen;
127 
128 	if ((mp = mexchange(wq, mp, size, M_PCPROTO, DL_UDERROR_IND)) == NULL)
129 		return;
130 
131 	dlp = (union DL_primitives *)mp->b_rptr;
132 	dlp->uderror_ind.dl_dest_addr_length = addrlen;
133 	dlp->uderror_ind.dl_dest_addr_offset = sizeof (dl_uderror_ind_t);
134 	dlp->uderror_ind.dl_unix_errno = unix_errno;
135 	dlp->uderror_ind.dl_errno = error;
136 	bcopy((caddr_t)buf,
137 		(caddr_t)(mp->b_rptr + sizeof (dl_uderror_ind_t)), addrlen);
138 	qreply(wq, mp);
139 }
140 
141 void
142 dlphysaddrack(
143 	queue_t		*wq,
144 	mblk_t		*mp,
145 	void		*addrp,
146 	t_uscalar_t	len)
147 {
148 	union DL_primitives	*dlp;
149 	size_t			size;
150 
151 	size = sizeof (dl_phys_addr_ack_t) + len;
152 	if ((mp = mexchange(wq, mp, size, M_PCPROTO, DL_PHYS_ADDR_ACK)) == NULL)
153 		return;
154 	dlp = (union DL_primitives *)mp->b_rptr;
155 	dlp->physaddr_ack.dl_addr_length = len;
156 	dlp->physaddr_ack.dl_addr_offset = sizeof (dl_phys_addr_ack_t);
157 	if (len != 0)
158 		bcopy(addrp, mp->b_rptr + sizeof (dl_phys_addr_ack_t), len);
159 	qreply(wq, mp);
160 }
161 
162 void
163 dlcapabsetqid(dl_mid_t *idp, const queue_t *q)
164 {
165 #ifndef _LP64
166 	idp->mid[0] = (t_uscalar_t)q;
167 #else
168 	idp->mid[0] = (t_uscalar_t)BMASK_32((uint64_t)q);
169 	idp->mid[1] = (t_uscalar_t)BMASK_32(((uint64_t)q) >> 32);
170 #endif
171 }
172 
173 boolean_t
174 dlcapabcheckqid(const dl_mid_t *idp, const queue_t *q)
175 {
176 #ifndef _LP64
177 	return ((queue_t *)(idp->mid[0]) == q);
178 #else
179 	return ((queue_t *)
180 	    ((uint64_t)idp->mid[0] | ((uint64_t)idp->mid[1] << 32)) == q);
181 #endif
182 }
183 
184 void
185 dlnotifyack(
186 	queue_t		*wq,
187 	mblk_t		*mp,
188 	uint32_t	notifications)
189 {
190 	union DL_primitives	*dlp;
191 
192 	if ((mp = mexchange(wq, mp, sizeof (dl_ok_ack_t), M_PROTO,
193 	    DL_NOTIFY_ACK)) == NULL)
194 		return;
195 	dlp = (union DL_primitives *)mp->b_rptr;
196 	dlp->notify_ack.dl_notifications = notifications;
197 	qreply(wq, mp);
198 }
199