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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2012 by Delphix. All rights reserved.
24 */
25
26 #ifndef _SYS_SA_IMPL_H
27 #define _SYS_SA_IMPL_H
28
29 #include <sys/dmu.h>
30 #include <sys/refcount.h>
31 #include <sys/list.h>
32
33 /*
34 * Array of known attributes and their
35 * various characteristics.
36 */
37 typedef struct sa_attr_table {
38 sa_attr_type_t sa_attr;
39 uint8_t sa_registered;
40 uint16_t sa_length;
41 sa_bswap_type_t sa_byteswap;
42 char *sa_name;
43 } sa_attr_table_t;
136 kmutex_t sa_lock;
137 boolean_t sa_need_attr_registration;
138 boolean_t sa_force_spill;
139 uint64_t sa_master_obj;
140 uint64_t sa_reg_attr_obj;
141 uint64_t sa_layout_attr_obj;
142 int sa_num_attrs;
143 sa_attr_table_t *sa_attr_table; /* private attr table */
144 sa_update_cb_t *sa_update_cb;
145 avl_tree_t sa_layout_num_tree; /* keyed by layout number */
146 avl_tree_t sa_layout_hash_tree; /* keyed by layout hash value */
147 int sa_user_table_sz;
148 sa_attr_type_t *sa_user_table; /* user name->attr mapping table */
149 };
150
151 /*
152 * header for all bonus and spill buffers.
153 *
154 * The header has a fixed portion with a variable number
155 * of "lengths" depending on the number of variable sized
156 * attribues which are determined by the "layout number"
157 */
158
159 #define SA_MAGIC 0x2F505A /* ZFS SA */
160 typedef struct sa_hdr_phys {
161 uint32_t sa_magic;
162 /*
163 * Encoded with hdrsize and layout number as follows:
164 * 16 10 0
165 * +--------+-------+
166 * | hdrsz |layout |
167 * +--------+-------+
168 *
169 * Bits 0-10 are the layout number
170 * Bits 11-16 are the size of the header.
171 * The hdrsize is the number * 8
172 *
173 * For example.
174 * hdrsz of 1 ==> 8 byte header
175 * 2 ==> 16 byte header
176 *
177 */
178 uint16_t sa_layout_info;
179 uint16_t sa_lengths[1]; /* optional sizes for variable length attrs */
180 /* ... Data follows the lengths. */
181 } sa_hdr_phys_t;
182
183 #define SA_HDR_LAYOUT_NUM(hdr) BF32_GET(hdr->sa_layout_info, 0, 10)
184 #define SA_HDR_SIZE(hdr) BF32_GET_SB(hdr->sa_layout_info, 10, 6, 3, 0)
185 #define SA_HDR_LAYOUT_INFO_ENCODE(x, num, size) \
186 { \
187 BF32_SET_SB(x, 10, 6, 3, 0, size); \
188 BF32_SET(x, 0, 10, num); \
189 }
190
191 typedef enum sa_buf_type {
192 SA_BONUS = 1,
193 SA_SPILL = 2
194 } sa_buf_type_t;
195
196 typedef enum sa_data_op {
197 SA_LOOKUP,
|
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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2013 by Delphix. All rights reserved.
24 */
25
26 #ifndef _SYS_SA_IMPL_H
27 #define _SYS_SA_IMPL_H
28
29 #include <sys/dmu.h>
30 #include <sys/refcount.h>
31 #include <sys/list.h>
32
33 /*
34 * Array of known attributes and their
35 * various characteristics.
36 */
37 typedef struct sa_attr_table {
38 sa_attr_type_t sa_attr;
39 uint8_t sa_registered;
40 uint16_t sa_length;
41 sa_bswap_type_t sa_byteswap;
42 char *sa_name;
43 } sa_attr_table_t;
136 kmutex_t sa_lock;
137 boolean_t sa_need_attr_registration;
138 boolean_t sa_force_spill;
139 uint64_t sa_master_obj;
140 uint64_t sa_reg_attr_obj;
141 uint64_t sa_layout_attr_obj;
142 int sa_num_attrs;
143 sa_attr_table_t *sa_attr_table; /* private attr table */
144 sa_update_cb_t *sa_update_cb;
145 avl_tree_t sa_layout_num_tree; /* keyed by layout number */
146 avl_tree_t sa_layout_hash_tree; /* keyed by layout hash value */
147 int sa_user_table_sz;
148 sa_attr_type_t *sa_user_table; /* user name->attr mapping table */
149 };
150
151 /*
152 * header for all bonus and spill buffers.
153 *
154 * The header has a fixed portion with a variable number
155 * of "lengths" depending on the number of variable sized
156 * attributes which are determined by the "layout number"
157 */
158
159 #define SA_MAGIC 0x2F505A /* ZFS SA */
160 typedef struct sa_hdr_phys {
161 uint32_t sa_magic;
162 /* BEGIN CSTYLED */
163 /*
164 * Encoded with hdrsize and layout number as follows:
165 * 16 10 0
166 * +--------+-------+
167 * | hdrsz |layout |
168 * +--------+-------+
169 *
170 * Bits 0-10 are the layout number
171 * Bits 11-16 are the size of the header.
172 * The hdrsize is the number * 8
173 *
174 * For example.
175 * hdrsz of 1 ==> 8 byte header
176 * 2 ==> 16 byte header
177 *
178 */
179 /* END CSTYLED */
180 uint16_t sa_layout_info;
181 uint16_t sa_lengths[1]; /* optional sizes for variable length attrs */
182 /* ... Data follows the lengths. */
183 } sa_hdr_phys_t;
184
185 #define SA_HDR_LAYOUT_NUM(hdr) BF32_GET(hdr->sa_layout_info, 0, 10)
186 #define SA_HDR_SIZE(hdr) BF32_GET_SB(hdr->sa_layout_info, 10, 6, 3, 0)
187 #define SA_HDR_LAYOUT_INFO_ENCODE(x, num, size) \
188 { \
189 BF32_SET_SB(x, 10, 6, 3, 0, size); \
190 BF32_SET(x, 0, 10, num); \
191 }
192
193 typedef enum sa_buf_type {
194 SA_BONUS = 1,
195 SA_SPILL = 2
196 } sa_buf_type_t;
197
198 typedef enum sa_data_op {
199 SA_LOOKUP,
|