Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1 | /* |
| 2 | * osd_initiator - Main body of the osd initiator library. |
| 3 | * |
| 4 | * Note: The file does not contain the advanced security functionality which |
| 5 | * is only needed by the security_manager's initiators. |
| 6 | * |
| 7 | * Copyright (C) 2008 Panasas Inc. All rights reserved. |
| 8 | * |
| 9 | * Authors: |
| 10 | * Boaz Harrosh <bharrosh@panasas.com> |
| 11 | * Benny Halevy <bhalevy@panasas.com> |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License version 2 |
| 15 | * |
| 16 | * Redistribution and use in source and binary forms, with or without |
| 17 | * modification, are permitted provided that the following conditions |
| 18 | * are met: |
| 19 | * |
| 20 | * 1. Redistributions of source code must retain the above copyright |
| 21 | * notice, this list of conditions and the following disclaimer. |
| 22 | * 2. Redistributions in binary form must reproduce the above copyright |
| 23 | * notice, this list of conditions and the following disclaimer in the |
| 24 | * documentation and/or other materials provided with the distribution. |
| 25 | * 3. Neither the name of the Panasas company nor the names of its |
| 26 | * contributors may be used to endorse or promote products derived |
| 27 | * from this software without specific prior written permission. |
| 28 | * |
| 29 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 30 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 31 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 32 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 33 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 34 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 35 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 36 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 37 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 38 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 39 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 40 | */ |
| 41 | |
| 42 | #include <scsi/osd_initiator.h> |
| 43 | #include <scsi/osd_sec.h> |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 44 | #include <scsi/osd_attributes.h> |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 45 | #include <scsi/osd_sense.h> |
| 46 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 47 | #include <scsi/scsi_device.h> |
| 48 | |
| 49 | #include "osd_debug.h" |
| 50 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 51 | #ifndef __unused |
| 52 | # define __unused __attribute__((unused)) |
| 53 | #endif |
| 54 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 55 | enum { OSD_REQ_RETRIES = 1 }; |
| 56 | |
| 57 | MODULE_AUTHOR("Boaz Harrosh <bharrosh@panasas.com>"); |
| 58 | MODULE_DESCRIPTION("open-osd initiator library libosd.ko"); |
| 59 | MODULE_LICENSE("GPL"); |
| 60 | |
| 61 | static inline void build_test(void) |
| 62 | { |
| 63 | /* structures were not packed */ |
| 64 | BUILD_BUG_ON(sizeof(struct osd_capability) != OSD_CAP_LEN); |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 65 | BUILD_BUG_ON(sizeof(struct osdv2_cdb) != OSD_TOTAL_CDB_LEN); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 66 | BUILD_BUG_ON(sizeof(struct osdv1_cdb) != OSDv1_TOTAL_CDB_LEN); |
| 67 | } |
| 68 | |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 69 | static const char *_osd_ver_desc(struct osd_request *or) |
| 70 | { |
| 71 | return osd_req_is_ver1(or) ? "OSD1" : "OSD2"; |
| 72 | } |
| 73 | |
| 74 | #define ATTR_DEF_RI(id, len) ATTR_DEF(OSD_APAGE_ROOT_INFORMATION, id, len) |
| 75 | |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 76 | static int _osd_get_print_system_info(struct osd_dev *od, |
| 77 | void *caps, struct osd_dev_info *odi) |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 78 | { |
| 79 | struct osd_request *or; |
| 80 | struct osd_attr get_attrs[] = { |
| 81 | ATTR_DEF_RI(OSD_ATTR_RI_VENDOR_IDENTIFICATION, 8), |
| 82 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_IDENTIFICATION, 16), |
| 83 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_MODEL, 32), |
| 84 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_REVISION_LEVEL, 4), |
| 85 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER, 64 /*variable*/), |
| 86 | ATTR_DEF_RI(OSD_ATTR_RI_OSD_NAME, 64 /*variable*/), |
| 87 | ATTR_DEF_RI(OSD_ATTR_RI_TOTAL_CAPACITY, 8), |
| 88 | ATTR_DEF_RI(OSD_ATTR_RI_USED_CAPACITY, 8), |
| 89 | ATTR_DEF_RI(OSD_ATTR_RI_NUMBER_OF_PARTITIONS, 8), |
| 90 | ATTR_DEF_RI(OSD_ATTR_RI_CLOCK, 6), |
| 91 | /* IBM-OSD-SIM Has a bug with this one put it last */ |
| 92 | ATTR_DEF_RI(OSD_ATTR_RI_OSD_SYSTEM_ID, 20), |
| 93 | }; |
| 94 | void *iter = NULL, *pFirst; |
| 95 | int nelem = ARRAY_SIZE(get_attrs), a = 0; |
| 96 | int ret; |
| 97 | |
| 98 | or = osd_start_request(od, GFP_KERNEL); |
| 99 | if (!or) |
| 100 | return -ENOMEM; |
| 101 | |
| 102 | /* get attrs */ |
| 103 | osd_req_get_attributes(or, &osd_root_object); |
| 104 | osd_req_add_get_attr_list(or, get_attrs, ARRAY_SIZE(get_attrs)); |
| 105 | |
| 106 | ret = osd_finalize_request(or, 0, caps, NULL); |
| 107 | if (ret) |
| 108 | goto out; |
| 109 | |
| 110 | ret = osd_execute_request(or); |
| 111 | if (ret) { |
| 112 | OSD_ERR("Failed to detect %s => %d\n", _osd_ver_desc(or), ret); |
| 113 | goto out; |
| 114 | } |
| 115 | |
| 116 | osd_req_decode_get_attr_list(or, get_attrs, &nelem, &iter); |
| 117 | |
| 118 | OSD_INFO("Detected %s device\n", |
| 119 | _osd_ver_desc(or)); |
| 120 | |
| 121 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 122 | OSD_INFO("VENDOR_IDENTIFICATION [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 123 | (char *)pFirst); |
| 124 | |
| 125 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 126 | OSD_INFO("PRODUCT_IDENTIFICATION [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 127 | (char *)pFirst); |
| 128 | |
| 129 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 130 | OSD_INFO("PRODUCT_MODEL [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 131 | (char *)pFirst); |
| 132 | |
| 133 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 134 | OSD_INFO("PRODUCT_REVISION_LEVEL [%u]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 135 | pFirst ? get_unaligned_be32(pFirst) : ~0U); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 136 | |
| 137 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 138 | OSD_INFO("PRODUCT_SERIAL_NUMBER [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 139 | (char *)pFirst); |
| 140 | |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 141 | odi->osdname_len = get_attrs[a].len; |
| 142 | /* Avoid NULL for memcmp optimization 0-length is good enough */ |
| 143 | odi->osdname = kzalloc(odi->osdname_len + 1, GFP_KERNEL); |
| 144 | if (odi->osdname_len) |
| 145 | memcpy(odi->osdname, get_attrs[a].val_ptr, odi->osdname_len); |
| 146 | OSD_INFO("OSD_NAME [%s]\n", odi->osdname); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 147 | a++; |
| 148 | |
| 149 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 150 | OSD_INFO("TOTAL_CAPACITY [0x%llx]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 151 | pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 152 | |
| 153 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 154 | OSD_INFO("USED_CAPACITY [0x%llx]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 155 | pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 156 | |
| 157 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 158 | OSD_INFO("NUMBER_OF_PARTITIONS [%llu]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 159 | pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL); |
| 160 | |
| 161 | if (a >= nelem) |
| 162 | goto out; |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 163 | |
| 164 | /* FIXME: Where are the time utilities */ |
| 165 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 166 | OSD_INFO("CLOCK [0x%02x%02x%02x%02x%02x%02x]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 167 | ((char *)pFirst)[0], ((char *)pFirst)[1], |
| 168 | ((char *)pFirst)[2], ((char *)pFirst)[3], |
| 169 | ((char *)pFirst)[4], ((char *)pFirst)[5]); |
| 170 | |
| 171 | if (a < nelem) { /* IBM-OSD-SIM bug, Might not have it */ |
| 172 | unsigned len = get_attrs[a].len; |
| 173 | char sid_dump[32*4 + 2]; /* 2nibbles+space+ASCII */ |
| 174 | |
| 175 | hex_dump_to_buffer(get_attrs[a].val_ptr, len, 32, 1, |
| 176 | sid_dump, sizeof(sid_dump), true); |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 177 | OSD_INFO("OSD_SYSTEM_ID(%d)\n" |
| 178 | " [%s]\n", len, sid_dump); |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 179 | |
| 180 | if (unlikely(len > sizeof(odi->systemid))) { |
| 181 | OSD_ERR("OSD Target error: OSD_SYSTEM_ID too long(%d). " |
| 182 | "device idetification might not work\n", len); |
| 183 | len = sizeof(odi->systemid); |
| 184 | } |
| 185 | odi->systemid_len = len; |
| 186 | memcpy(odi->systemid, get_attrs[a].val_ptr, len); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 187 | a++; |
| 188 | } |
| 189 | out: |
| 190 | osd_end_request(or); |
| 191 | return ret; |
| 192 | } |
| 193 | |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 194 | int osd_auto_detect_ver(struct osd_dev *od, |
| 195 | void *caps, struct osd_dev_info *odi) |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 196 | { |
| 197 | int ret; |
| 198 | |
| 199 | /* Auto-detect the osd version */ |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 200 | ret = _osd_get_print_system_info(od, caps, odi); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 201 | if (ret) { |
| 202 | osd_dev_set_ver(od, OSD_VER1); |
| 203 | OSD_DEBUG("converting to OSD1\n"); |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 204 | ret = _osd_get_print_system_info(od, caps, odi); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | return ret; |
| 208 | } |
| 209 | EXPORT_SYMBOL(osd_auto_detect_ver); |
| 210 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 211 | static unsigned _osd_req_cdb_len(struct osd_request *or) |
| 212 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 213 | return osd_req_is_ver1(or) ? OSDv1_TOTAL_CDB_LEN : OSD_TOTAL_CDB_LEN; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 214 | } |
| 215 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 216 | static unsigned _osd_req_alist_elem_size(struct osd_request *or, unsigned len) |
| 217 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 218 | return osd_req_is_ver1(or) ? |
| 219 | osdv1_attr_list_elem_size(len) : |
| 220 | osdv2_attr_list_elem_size(len); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 221 | } |
| 222 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 223 | static void _osd_req_alist_elem_encode(struct osd_request *or, |
| 224 | void *attr_last, const struct osd_attr *oa) |
| 225 | { |
| 226 | if (osd_req_is_ver1(or)) { |
| 227 | struct osdv1_attributes_list_element *attr = attr_last; |
| 228 | |
| 229 | attr->attr_page = cpu_to_be32(oa->attr_page); |
| 230 | attr->attr_id = cpu_to_be32(oa->attr_id); |
| 231 | attr->attr_bytes = cpu_to_be16(oa->len); |
| 232 | memcpy(attr->attr_val, oa->val_ptr, oa->len); |
| 233 | } else { |
| 234 | struct osdv2_attributes_list_element *attr = attr_last; |
| 235 | |
| 236 | attr->attr_page = cpu_to_be32(oa->attr_page); |
| 237 | attr->attr_id = cpu_to_be32(oa->attr_id); |
| 238 | attr->attr_bytes = cpu_to_be16(oa->len); |
| 239 | memcpy(attr->attr_val, oa->val_ptr, oa->len); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | static int _osd_req_alist_elem_decode(struct osd_request *or, |
| 244 | void *cur_p, struct osd_attr *oa, unsigned max_bytes) |
| 245 | { |
| 246 | unsigned inc; |
| 247 | if (osd_req_is_ver1(or)) { |
| 248 | struct osdv1_attributes_list_element *attr = cur_p; |
| 249 | |
| 250 | if (max_bytes < sizeof(*attr)) |
| 251 | return -1; |
| 252 | |
| 253 | oa->len = be16_to_cpu(attr->attr_bytes); |
| 254 | inc = _osd_req_alist_elem_size(or, oa->len); |
| 255 | if (inc > max_bytes) |
| 256 | return -1; |
| 257 | |
| 258 | oa->attr_page = be32_to_cpu(attr->attr_page); |
| 259 | oa->attr_id = be32_to_cpu(attr->attr_id); |
| 260 | |
| 261 | /* OSD1: On empty attributes we return a pointer to 2 bytes |
| 262 | * of zeros. This keeps similar behaviour with OSD2. |
| 263 | * (See below) |
| 264 | */ |
| 265 | oa->val_ptr = likely(oa->len) ? attr->attr_val : |
| 266 | (u8 *)&attr->attr_bytes; |
| 267 | } else { |
| 268 | struct osdv2_attributes_list_element *attr = cur_p; |
| 269 | |
| 270 | if (max_bytes < sizeof(*attr)) |
| 271 | return -1; |
| 272 | |
| 273 | oa->len = be16_to_cpu(attr->attr_bytes); |
| 274 | inc = _osd_req_alist_elem_size(or, oa->len); |
| 275 | if (inc > max_bytes) |
| 276 | return -1; |
| 277 | |
| 278 | oa->attr_page = be32_to_cpu(attr->attr_page); |
| 279 | oa->attr_id = be32_to_cpu(attr->attr_id); |
| 280 | |
Boaz Harrosh | e9da4d7 | 2009-04-19 19:17:54 +0300 | [diff] [blame] | 281 | /* OSD2: For convenience, on empty attributes, we return 8 bytes |
| 282 | * of zeros here. This keeps the same behaviour with OSD2r04, |
| 283 | * and is nice with null terminating ASCII fields. |
| 284 | * oa->val_ptr == NULL marks the end-of-list, or error. |
| 285 | */ |
| 286 | oa->val_ptr = likely(oa->len) ? attr->attr_val : attr->reserved; |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 287 | } |
| 288 | return inc; |
| 289 | } |
| 290 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 291 | static unsigned _osd_req_alist_size(struct osd_request *or, void *list_head) |
| 292 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 293 | return osd_req_is_ver1(or) ? |
| 294 | osdv1_list_size(list_head) : |
| 295 | osdv2_list_size(list_head); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | static unsigned _osd_req_sizeof_alist_header(struct osd_request *or) |
| 299 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 300 | return osd_req_is_ver1(or) ? |
| 301 | sizeof(struct osdv1_attributes_list_header) : |
| 302 | sizeof(struct osdv2_attributes_list_header); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 303 | } |
| 304 | |
| 305 | static void _osd_req_set_alist_type(struct osd_request *or, |
| 306 | void *list, int list_type) |
| 307 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 308 | if (osd_req_is_ver1(or)) { |
| 309 | struct osdv1_attributes_list_header *attr_list = list; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 310 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 311 | memset(attr_list, 0, sizeof(*attr_list)); |
| 312 | attr_list->type = list_type; |
| 313 | } else { |
| 314 | struct osdv2_attributes_list_header *attr_list = list; |
| 315 | |
| 316 | memset(attr_list, 0, sizeof(*attr_list)); |
| 317 | attr_list->type = list_type; |
| 318 | } |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | static bool _osd_req_is_alist_type(struct osd_request *or, |
| 322 | void *list, int list_type) |
| 323 | { |
| 324 | if (!list) |
| 325 | return false; |
| 326 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 327 | if (osd_req_is_ver1(or)) { |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 328 | struct osdv1_attributes_list_header *attr_list = list; |
| 329 | |
| 330 | return attr_list->type == list_type; |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 331 | } else { |
| 332 | struct osdv2_attributes_list_header *attr_list = list; |
| 333 | |
| 334 | return attr_list->type == list_type; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 335 | } |
| 336 | } |
| 337 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 338 | /* This is for List-objects not Attributes-Lists */ |
| 339 | static void _osd_req_encode_olist(struct osd_request *or, |
| 340 | struct osd_obj_id_list *list) |
| 341 | { |
| 342 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 343 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 344 | if (osd_req_is_ver1(or)) { |
| 345 | cdbh->v1.list_identifier = list->list_identifier; |
| 346 | cdbh->v1.start_address = list->continuation_id; |
| 347 | } else { |
| 348 | cdbh->v2.list_identifier = list->list_identifier; |
| 349 | cdbh->v2.start_address = list->continuation_id; |
| 350 | } |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 351 | } |
| 352 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 353 | static osd_cdb_offset osd_req_encode_offset(struct osd_request *or, |
| 354 | u64 offset, unsigned *padding) |
| 355 | { |
| 356 | return __osd_encode_offset(offset, padding, |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 357 | osd_req_is_ver1(or) ? |
| 358 | OSDv1_OFFSET_MIN_SHIFT : OSD_OFFSET_MIN_SHIFT, |
| 359 | OSD_OFFSET_MAX_SHIFT); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 360 | } |
| 361 | |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 362 | static struct osd_security_parameters * |
| 363 | _osd_req_sec_params(struct osd_request *or) |
| 364 | { |
| 365 | struct osd_cdb *ocdb = &or->cdb; |
| 366 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 367 | if (osd_req_is_ver1(or)) |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 368 | return (struct osd_security_parameters *)&ocdb->v1.sec_params; |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 369 | else |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 370 | return (struct osd_security_parameters *)&ocdb->v2.sec_params; |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 371 | } |
| 372 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 373 | void osd_dev_init(struct osd_dev *osdd, struct scsi_device *scsi_device) |
| 374 | { |
| 375 | memset(osdd, 0, sizeof(*osdd)); |
| 376 | osdd->scsi_device = scsi_device; |
| 377 | osdd->def_timeout = BLK_DEFAULT_SG_TIMEOUT; |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 378 | #ifdef OSD_VER1_SUPPORT |
| 379 | osdd->version = OSD_VER2; |
| 380 | #endif |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 381 | /* TODO: Allocate pools for osd_request attributes ... */ |
| 382 | } |
| 383 | EXPORT_SYMBOL(osd_dev_init); |
| 384 | |
| 385 | void osd_dev_fini(struct osd_dev *osdd) |
| 386 | { |
| 387 | /* TODO: De-allocate pools */ |
| 388 | |
| 389 | osdd->scsi_device = NULL; |
| 390 | } |
| 391 | EXPORT_SYMBOL(osd_dev_fini); |
| 392 | |
| 393 | static struct osd_request *_osd_request_alloc(gfp_t gfp) |
| 394 | { |
| 395 | struct osd_request *or; |
| 396 | |
| 397 | /* TODO: Use mempool with one saved request */ |
| 398 | or = kzalloc(sizeof(*or), gfp); |
| 399 | return or; |
| 400 | } |
| 401 | |
| 402 | static void _osd_request_free(struct osd_request *or) |
| 403 | { |
| 404 | kfree(or); |
| 405 | } |
| 406 | |
| 407 | struct osd_request *osd_start_request(struct osd_dev *dev, gfp_t gfp) |
| 408 | { |
| 409 | struct osd_request *or; |
| 410 | |
| 411 | or = _osd_request_alloc(gfp); |
| 412 | if (!or) |
| 413 | return NULL; |
| 414 | |
| 415 | or->osd_dev = dev; |
| 416 | or->alloc_flags = gfp; |
| 417 | or->timeout = dev->def_timeout; |
| 418 | or->retries = OSD_REQ_RETRIES; |
| 419 | |
| 420 | return or; |
| 421 | } |
| 422 | EXPORT_SYMBOL(osd_start_request); |
| 423 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 424 | static void _osd_free_seg(struct osd_request *or __unused, |
| 425 | struct _osd_req_data_segment *seg) |
| 426 | { |
| 427 | if (!seg->buff || !seg->alloc_size) |
| 428 | return; |
| 429 | |
| 430 | kfree(seg->buff); |
| 431 | seg->buff = NULL; |
| 432 | seg->alloc_size = 0; |
| 433 | } |
| 434 | |
Boaz Harrosh | 8c0bacc | 2009-03-31 20:05:29 +0300 | [diff] [blame] | 435 | static void _put_request(struct request *rq , bool is_async) |
| 436 | { |
| 437 | if (is_async) { |
| 438 | WARN_ON(rq->bio); |
| 439 | __blk_put_request(rq->q, rq); |
| 440 | } else { |
| 441 | /* |
| 442 | * If osd_finalize_request() was called but the request was not |
| 443 | * executed through the block layer, then we must release BIOs. |
| 444 | * TODO: Keep error code in or->async_error. Need to audit all |
| 445 | * code paths. |
| 446 | */ |
| 447 | if (unlikely(rq->bio)) |
| 448 | blk_end_request(rq, -ENOMEM, blk_rq_bytes(rq)); |
| 449 | else |
| 450 | blk_put_request(rq); |
| 451 | } |
| 452 | } |
| 453 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 454 | void osd_end_request(struct osd_request *or) |
| 455 | { |
| 456 | struct request *rq = or->request; |
Boaz Harrosh | 8c0bacc | 2009-03-31 20:05:29 +0300 | [diff] [blame] | 457 | /* IMPORTANT: make sure this agrees with osd_execute_request_async */ |
| 458 | bool is_async = (or->request->end_io_data == or); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 459 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 460 | _osd_free_seg(or, &or->set_attr); |
| 461 | _osd_free_seg(or, &or->enc_get_attr); |
| 462 | _osd_free_seg(or, &or->get_attr); |
| 463 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 464 | if (rq) { |
| 465 | if (rq->next_rq) { |
Boaz Harrosh | 8c0bacc | 2009-03-31 20:05:29 +0300 | [diff] [blame] | 466 | _put_request(rq->next_rq, is_async); |
| 467 | rq->next_rq = NULL; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 468 | } |
| 469 | |
Boaz Harrosh | 8c0bacc | 2009-03-31 20:05:29 +0300 | [diff] [blame] | 470 | _put_request(rq, is_async); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 471 | } |
| 472 | _osd_request_free(or); |
| 473 | } |
| 474 | EXPORT_SYMBOL(osd_end_request); |
| 475 | |
| 476 | int osd_execute_request(struct osd_request *or) |
| 477 | { |
| 478 | return blk_execute_rq(or->request->q, NULL, or->request, 0); |
| 479 | } |
| 480 | EXPORT_SYMBOL(osd_execute_request); |
| 481 | |
| 482 | static void osd_request_async_done(struct request *req, int error) |
| 483 | { |
| 484 | struct osd_request *or = req->end_io_data; |
| 485 | |
| 486 | or->async_error = error; |
| 487 | |
| 488 | if (error) |
| 489 | OSD_DEBUG("osd_request_async_done error recieved %d\n", error); |
| 490 | |
| 491 | if (or->async_done) |
| 492 | or->async_done(or, or->async_private); |
| 493 | else |
| 494 | osd_end_request(or); |
| 495 | } |
| 496 | |
| 497 | int osd_execute_request_async(struct osd_request *or, |
| 498 | osd_req_done_fn *done, void *private) |
| 499 | { |
| 500 | or->request->end_io_data = or; |
| 501 | or->async_private = private; |
| 502 | or->async_done = done; |
| 503 | |
| 504 | blk_execute_rq_nowait(or->request->q, NULL, or->request, 0, |
| 505 | osd_request_async_done); |
| 506 | return 0; |
| 507 | } |
| 508 | EXPORT_SYMBOL(osd_execute_request_async); |
| 509 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 510 | u8 sg_out_pad_buffer[1 << OSDv1_OFFSET_MIN_SHIFT]; |
| 511 | u8 sg_in_pad_buffer[1 << OSDv1_OFFSET_MIN_SHIFT]; |
| 512 | |
| 513 | static int _osd_realloc_seg(struct osd_request *or, |
| 514 | struct _osd_req_data_segment *seg, unsigned max_bytes) |
| 515 | { |
| 516 | void *buff; |
| 517 | |
| 518 | if (seg->alloc_size >= max_bytes) |
| 519 | return 0; |
| 520 | |
| 521 | buff = krealloc(seg->buff, max_bytes, or->alloc_flags); |
| 522 | if (!buff) { |
| 523 | OSD_ERR("Failed to Realloc %d-bytes was-%d\n", max_bytes, |
| 524 | seg->alloc_size); |
| 525 | return -ENOMEM; |
| 526 | } |
| 527 | |
| 528 | memset(buff + seg->alloc_size, 0, max_bytes - seg->alloc_size); |
| 529 | seg->buff = buff; |
| 530 | seg->alloc_size = max_bytes; |
| 531 | return 0; |
| 532 | } |
| 533 | |
| 534 | static int _alloc_set_attr_list(struct osd_request *or, |
| 535 | const struct osd_attr *oa, unsigned nelem, unsigned add_bytes) |
| 536 | { |
| 537 | unsigned total_bytes = add_bytes; |
| 538 | |
| 539 | for (; nelem; --nelem, ++oa) |
| 540 | total_bytes += _osd_req_alist_elem_size(or, oa->len); |
| 541 | |
| 542 | OSD_DEBUG("total_bytes=%d\n", total_bytes); |
| 543 | return _osd_realloc_seg(or, &or->set_attr, total_bytes); |
| 544 | } |
| 545 | |
| 546 | static int _alloc_get_attr_desc(struct osd_request *or, unsigned max_bytes) |
| 547 | { |
| 548 | OSD_DEBUG("total_bytes=%d\n", max_bytes); |
| 549 | return _osd_realloc_seg(or, &or->enc_get_attr, max_bytes); |
| 550 | } |
| 551 | |
| 552 | static int _alloc_get_attr_list(struct osd_request *or) |
| 553 | { |
| 554 | OSD_DEBUG("total_bytes=%d\n", or->get_attr.total_bytes); |
| 555 | return _osd_realloc_seg(or, &or->get_attr, or->get_attr.total_bytes); |
| 556 | } |
| 557 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 558 | /* |
| 559 | * Common to all OSD commands |
| 560 | */ |
| 561 | |
| 562 | static void _osdv1_req_encode_common(struct osd_request *or, |
| 563 | __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len) |
| 564 | { |
| 565 | struct osdv1_cdb *ocdb = &or->cdb.v1; |
| 566 | |
| 567 | /* |
| 568 | * For speed, the commands |
| 569 | * OSD_ACT_PERFORM_SCSI_COMMAND , V1 0x8F7E, V2 0x8F7C |
| 570 | * OSD_ACT_SCSI_TASK_MANAGEMENT , V1 0x8F7F, V2 0x8F7D |
| 571 | * are not supported here. Should pass zero and set after the call |
| 572 | */ |
| 573 | act &= cpu_to_be16(~0x0080); /* V1 action code */ |
| 574 | |
| 575 | OSD_DEBUG("OSDv1 execute opcode 0x%x\n", be16_to_cpu(act)); |
| 576 | |
| 577 | ocdb->h.varlen_cdb.opcode = VARIABLE_LENGTH_CMD; |
| 578 | ocdb->h.varlen_cdb.additional_cdb_length = OSD_ADDITIONAL_CDB_LENGTH; |
| 579 | ocdb->h.varlen_cdb.service_action = act; |
| 580 | |
| 581 | ocdb->h.partition = cpu_to_be64(obj->partition); |
| 582 | ocdb->h.object = cpu_to_be64(obj->id); |
| 583 | ocdb->h.v1.length = cpu_to_be64(len); |
| 584 | ocdb->h.v1.start_address = cpu_to_be64(offset); |
| 585 | } |
| 586 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 587 | static void _osdv2_req_encode_common(struct osd_request *or, |
| 588 | __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len) |
| 589 | { |
| 590 | struct osdv2_cdb *ocdb = &or->cdb.v2; |
| 591 | |
| 592 | OSD_DEBUG("OSDv2 execute opcode 0x%x\n", be16_to_cpu(act)); |
| 593 | |
| 594 | ocdb->h.varlen_cdb.opcode = VARIABLE_LENGTH_CMD; |
| 595 | ocdb->h.varlen_cdb.additional_cdb_length = OSD_ADDITIONAL_CDB_LENGTH; |
| 596 | ocdb->h.varlen_cdb.service_action = act; |
| 597 | |
| 598 | ocdb->h.partition = cpu_to_be64(obj->partition); |
| 599 | ocdb->h.object = cpu_to_be64(obj->id); |
| 600 | ocdb->h.v2.length = cpu_to_be64(len); |
| 601 | ocdb->h.v2.start_address = cpu_to_be64(offset); |
| 602 | } |
| 603 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 604 | static void _osd_req_encode_common(struct osd_request *or, |
| 605 | __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len) |
| 606 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 607 | if (osd_req_is_ver1(or)) |
| 608 | _osdv1_req_encode_common(or, act, obj, offset, len); |
| 609 | else |
| 610 | _osdv2_req_encode_common(or, act, obj, offset, len); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 611 | } |
| 612 | |
| 613 | /* |
| 614 | * Device commands |
| 615 | */ |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 616 | /*TODO: void osd_req_set_master_seed_xchg(struct osd_request *, ...); */ |
| 617 | /*TODO: void osd_req_set_master_key(struct osd_request *, ...); */ |
| 618 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 619 | void osd_req_format(struct osd_request *or, u64 tot_capacity) |
| 620 | { |
| 621 | _osd_req_encode_common(or, OSD_ACT_FORMAT_OSD, &osd_root_object, 0, |
| 622 | tot_capacity); |
| 623 | } |
| 624 | EXPORT_SYMBOL(osd_req_format); |
| 625 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 626 | int osd_req_list_dev_partitions(struct osd_request *or, |
| 627 | osd_id initial_id, struct osd_obj_id_list *list, unsigned nelem) |
| 628 | { |
| 629 | return osd_req_list_partition_objects(or, 0, initial_id, list, nelem); |
| 630 | } |
| 631 | EXPORT_SYMBOL(osd_req_list_dev_partitions); |
| 632 | |
| 633 | static void _osd_req_encode_flush(struct osd_request *or, |
| 634 | enum osd_options_flush_scope_values op) |
| 635 | { |
| 636 | struct osd_cdb_head *ocdb = osd_cdb_head(&or->cdb); |
| 637 | |
| 638 | ocdb->command_specific_options = op; |
| 639 | } |
| 640 | |
| 641 | void osd_req_flush_obsd(struct osd_request *or, |
| 642 | enum osd_options_flush_scope_values op) |
| 643 | { |
| 644 | _osd_req_encode_common(or, OSD_ACT_FLUSH_OSD, &osd_root_object, 0, 0); |
| 645 | _osd_req_encode_flush(or, op); |
| 646 | } |
| 647 | EXPORT_SYMBOL(osd_req_flush_obsd); |
| 648 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 649 | /*TODO: void osd_req_perform_scsi_command(struct osd_request *, |
| 650 | const u8 *cdb, ...); */ |
| 651 | /*TODO: void osd_req_task_management(struct osd_request *, ...); */ |
| 652 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 653 | /* |
| 654 | * Partition commands |
| 655 | */ |
| 656 | static void _osd_req_encode_partition(struct osd_request *or, |
| 657 | __be16 act, osd_id partition) |
| 658 | { |
| 659 | struct osd_obj_id par = { |
| 660 | .partition = partition, |
| 661 | .id = 0, |
| 662 | }; |
| 663 | |
| 664 | _osd_req_encode_common(or, act, &par, 0, 0); |
| 665 | } |
| 666 | |
| 667 | void osd_req_create_partition(struct osd_request *or, osd_id partition) |
| 668 | { |
| 669 | _osd_req_encode_partition(or, OSD_ACT_CREATE_PARTITION, partition); |
| 670 | } |
| 671 | EXPORT_SYMBOL(osd_req_create_partition); |
| 672 | |
| 673 | void osd_req_remove_partition(struct osd_request *or, osd_id partition) |
| 674 | { |
| 675 | _osd_req_encode_partition(or, OSD_ACT_REMOVE_PARTITION, partition); |
| 676 | } |
| 677 | EXPORT_SYMBOL(osd_req_remove_partition); |
| 678 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 679 | /*TODO: void osd_req_set_partition_key(struct osd_request *, |
| 680 | osd_id partition, u8 new_key_id[OSD_CRYPTO_KEYID_SIZE], |
| 681 | u8 seed[OSD_CRYPTO_SEED_SIZE]); */ |
| 682 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 683 | static int _osd_req_list_objects(struct osd_request *or, |
| 684 | __be16 action, const struct osd_obj_id *obj, osd_id initial_id, |
| 685 | struct osd_obj_id_list *list, unsigned nelem) |
| 686 | { |
Boaz Harrosh | fc2fac5 | 2009-05-24 20:04:43 +0300 | [diff] [blame] | 687 | struct request_queue *q = osd_request_queue(or->osd_dev); |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 688 | u64 len = nelem * sizeof(osd_id) + sizeof(*list); |
| 689 | struct bio *bio; |
| 690 | |
| 691 | _osd_req_encode_common(or, action, obj, (u64)initial_id, len); |
| 692 | |
| 693 | if (list->list_identifier) |
| 694 | _osd_req_encode_olist(or, list); |
| 695 | |
| 696 | WARN_ON(or->in.bio); |
| 697 | bio = bio_map_kern(q, list, len, or->alloc_flags); |
Dan Carpenter | bf5e84f | 2009-04-19 19:07:47 +0300 | [diff] [blame] | 698 | if (IS_ERR(bio)) { |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 699 | OSD_ERR("!!! Failed to allocate list_objects BIO\n"); |
Dan Carpenter | bf5e84f | 2009-04-19 19:07:47 +0300 | [diff] [blame] | 700 | return PTR_ERR(bio); |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 701 | } |
| 702 | |
| 703 | bio->bi_rw &= ~(1 << BIO_RW); |
| 704 | or->in.bio = bio; |
| 705 | or->in.total_bytes = bio->bi_size; |
| 706 | return 0; |
| 707 | } |
| 708 | |
| 709 | int osd_req_list_partition_collections(struct osd_request *or, |
| 710 | osd_id partition, osd_id initial_id, struct osd_obj_id_list *list, |
| 711 | unsigned nelem) |
| 712 | { |
| 713 | struct osd_obj_id par = { |
| 714 | .partition = partition, |
| 715 | .id = 0, |
| 716 | }; |
| 717 | |
| 718 | return osd_req_list_collection_objects(or, &par, initial_id, list, |
| 719 | nelem); |
| 720 | } |
| 721 | EXPORT_SYMBOL(osd_req_list_partition_collections); |
| 722 | |
| 723 | int osd_req_list_partition_objects(struct osd_request *or, |
| 724 | osd_id partition, osd_id initial_id, struct osd_obj_id_list *list, |
| 725 | unsigned nelem) |
| 726 | { |
| 727 | struct osd_obj_id par = { |
| 728 | .partition = partition, |
| 729 | .id = 0, |
| 730 | }; |
| 731 | |
| 732 | return _osd_req_list_objects(or, OSD_ACT_LIST, &par, initial_id, list, |
| 733 | nelem); |
| 734 | } |
| 735 | EXPORT_SYMBOL(osd_req_list_partition_objects); |
| 736 | |
| 737 | void osd_req_flush_partition(struct osd_request *or, |
| 738 | osd_id partition, enum osd_options_flush_scope_values op) |
| 739 | { |
| 740 | _osd_req_encode_partition(or, OSD_ACT_FLUSH_PARTITION, partition); |
| 741 | _osd_req_encode_flush(or, op); |
| 742 | } |
| 743 | EXPORT_SYMBOL(osd_req_flush_partition); |
| 744 | |
| 745 | /* |
| 746 | * Collection commands |
| 747 | */ |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 748 | /*TODO: void osd_req_create_collection(struct osd_request *, |
| 749 | const struct osd_obj_id *); */ |
| 750 | /*TODO: void osd_req_remove_collection(struct osd_request *, |
| 751 | const struct osd_obj_id *); */ |
| 752 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 753 | int osd_req_list_collection_objects(struct osd_request *or, |
| 754 | const struct osd_obj_id *obj, osd_id initial_id, |
| 755 | struct osd_obj_id_list *list, unsigned nelem) |
| 756 | { |
| 757 | return _osd_req_list_objects(or, OSD_ACT_LIST_COLLECTION, obj, |
| 758 | initial_id, list, nelem); |
| 759 | } |
| 760 | EXPORT_SYMBOL(osd_req_list_collection_objects); |
| 761 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 762 | /*TODO: void query(struct osd_request *, ...); V2 */ |
| 763 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 764 | void osd_req_flush_collection(struct osd_request *or, |
| 765 | const struct osd_obj_id *obj, enum osd_options_flush_scope_values op) |
| 766 | { |
| 767 | _osd_req_encode_common(or, OSD_ACT_FLUSH_PARTITION, obj, 0, 0); |
| 768 | _osd_req_encode_flush(or, op); |
| 769 | } |
| 770 | EXPORT_SYMBOL(osd_req_flush_collection); |
| 771 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 772 | /*TODO: void get_member_attrs(struct osd_request *, ...); V2 */ |
| 773 | /*TODO: void set_member_attrs(struct osd_request *, ...); V2 */ |
| 774 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 775 | /* |
| 776 | * Object commands |
| 777 | */ |
| 778 | void osd_req_create_object(struct osd_request *or, struct osd_obj_id *obj) |
| 779 | { |
| 780 | _osd_req_encode_common(or, OSD_ACT_CREATE, obj, 0, 0); |
| 781 | } |
| 782 | EXPORT_SYMBOL(osd_req_create_object); |
| 783 | |
| 784 | void osd_req_remove_object(struct osd_request *or, struct osd_obj_id *obj) |
| 785 | { |
| 786 | _osd_req_encode_common(or, OSD_ACT_REMOVE, obj, 0, 0); |
| 787 | } |
| 788 | EXPORT_SYMBOL(osd_req_remove_object); |
| 789 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 790 | |
| 791 | /*TODO: void osd_req_create_multi(struct osd_request *or, |
| 792 | struct osd_obj_id *first, struct osd_obj_id_list *list, unsigned nelem); |
| 793 | */ |
| 794 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 795 | void osd_req_write(struct osd_request *or, |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 796 | const struct osd_obj_id *obj, u64 offset, |
| 797 | struct bio *bio, u64 len) |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 798 | { |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 799 | _osd_req_encode_common(or, OSD_ACT_WRITE, obj, offset, len); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 800 | WARN_ON(or->out.bio || or->out.total_bytes); |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 801 | WARN_ON(0 == bio_rw_flagged(bio, BIO_RW)); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 802 | or->out.bio = bio; |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 803 | or->out.total_bytes = len; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 804 | } |
| 805 | EXPORT_SYMBOL(osd_req_write); |
| 806 | |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 807 | int osd_req_write_kern(struct osd_request *or, |
| 808 | const struct osd_obj_id *obj, u64 offset, void* buff, u64 len) |
| 809 | { |
Boaz Harrosh | fc2fac5 | 2009-05-24 20:04:43 +0300 | [diff] [blame] | 810 | struct request_queue *req_q = osd_request_queue(or->osd_dev); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 811 | struct bio *bio = bio_map_kern(req_q, buff, len, GFP_KERNEL); |
| 812 | |
| 813 | if (IS_ERR(bio)) |
| 814 | return PTR_ERR(bio); |
| 815 | |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 816 | bio->bi_rw |= (1 << BIO_RW); /* FIXME: bio_set_dir() */ |
| 817 | osd_req_write(or, obj, offset, bio, len); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 818 | return 0; |
| 819 | } |
| 820 | EXPORT_SYMBOL(osd_req_write_kern); |
| 821 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 822 | /*TODO: void osd_req_append(struct osd_request *, |
| 823 | const struct osd_obj_id *, struct bio *data_out); */ |
| 824 | /*TODO: void osd_req_create_write(struct osd_request *, |
| 825 | const struct osd_obj_id *, struct bio *data_out, u64 offset); */ |
| 826 | /*TODO: void osd_req_clear(struct osd_request *, |
| 827 | const struct osd_obj_id *, u64 offset, u64 len); */ |
| 828 | /*TODO: void osd_req_punch(struct osd_request *, |
| 829 | const struct osd_obj_id *, u64 offset, u64 len); V2 */ |
| 830 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 831 | void osd_req_flush_object(struct osd_request *or, |
| 832 | const struct osd_obj_id *obj, enum osd_options_flush_scope_values op, |
| 833 | /*V2*/ u64 offset, /*V2*/ u64 len) |
| 834 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 835 | if (unlikely(osd_req_is_ver1(or) && (offset || len))) { |
| 836 | OSD_DEBUG("OSD Ver1 flush on specific range ignored\n"); |
| 837 | offset = 0; |
| 838 | len = 0; |
| 839 | } |
| 840 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 841 | _osd_req_encode_common(or, OSD_ACT_FLUSH, obj, offset, len); |
| 842 | _osd_req_encode_flush(or, op); |
| 843 | } |
| 844 | EXPORT_SYMBOL(osd_req_flush_object); |
| 845 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 846 | void osd_req_read(struct osd_request *or, |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 847 | const struct osd_obj_id *obj, u64 offset, |
| 848 | struct bio *bio, u64 len) |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 849 | { |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 850 | _osd_req_encode_common(or, OSD_ACT_READ, obj, offset, len); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 851 | WARN_ON(or->in.bio || or->in.total_bytes); |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 852 | WARN_ON(1 == bio_rw_flagged(bio, BIO_RW)); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 853 | or->in.bio = bio; |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 854 | or->in.total_bytes = len; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 855 | } |
| 856 | EXPORT_SYMBOL(osd_req_read); |
| 857 | |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 858 | int osd_req_read_kern(struct osd_request *or, |
| 859 | const struct osd_obj_id *obj, u64 offset, void* buff, u64 len) |
| 860 | { |
Boaz Harrosh | fc2fac5 | 2009-05-24 20:04:43 +0300 | [diff] [blame] | 861 | struct request_queue *req_q = osd_request_queue(or->osd_dev); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 862 | struct bio *bio = bio_map_kern(req_q, buff, len, GFP_KERNEL); |
| 863 | |
| 864 | if (IS_ERR(bio)) |
| 865 | return PTR_ERR(bio); |
| 866 | |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 867 | osd_req_read(or, obj, offset, bio, len); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 868 | return 0; |
| 869 | } |
| 870 | EXPORT_SYMBOL(osd_req_read_kern); |
| 871 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 872 | void osd_req_get_attributes(struct osd_request *or, |
| 873 | const struct osd_obj_id *obj) |
| 874 | { |
| 875 | _osd_req_encode_common(or, OSD_ACT_GET_ATTRIBUTES, obj, 0, 0); |
| 876 | } |
| 877 | EXPORT_SYMBOL(osd_req_get_attributes); |
| 878 | |
| 879 | void osd_req_set_attributes(struct osd_request *or, |
| 880 | const struct osd_obj_id *obj) |
| 881 | { |
| 882 | _osd_req_encode_common(or, OSD_ACT_SET_ATTRIBUTES, obj, 0, 0); |
| 883 | } |
| 884 | EXPORT_SYMBOL(osd_req_set_attributes); |
| 885 | |
| 886 | /* |
| 887 | * Attributes List-mode |
| 888 | */ |
| 889 | |
| 890 | int osd_req_add_set_attr_list(struct osd_request *or, |
| 891 | const struct osd_attr *oa, unsigned nelem) |
| 892 | { |
| 893 | unsigned total_bytes = or->set_attr.total_bytes; |
| 894 | void *attr_last; |
| 895 | int ret; |
| 896 | |
| 897 | if (or->attributes_mode && |
| 898 | or->attributes_mode != OSD_CDB_GET_SET_ATTR_LISTS) { |
| 899 | WARN_ON(1); |
| 900 | return -EINVAL; |
| 901 | } |
| 902 | or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS; |
| 903 | |
| 904 | if (!total_bytes) { /* first-time: allocate and put list header */ |
| 905 | total_bytes = _osd_req_sizeof_alist_header(or); |
| 906 | ret = _alloc_set_attr_list(or, oa, nelem, total_bytes); |
| 907 | if (ret) |
| 908 | return ret; |
| 909 | _osd_req_set_alist_type(or, or->set_attr.buff, |
| 910 | OSD_ATTR_LIST_SET_RETRIEVE); |
| 911 | } |
| 912 | attr_last = or->set_attr.buff + total_bytes; |
| 913 | |
| 914 | for (; nelem; --nelem) { |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 915 | unsigned elem_size = _osd_req_alist_elem_size(or, oa->len); |
| 916 | |
| 917 | total_bytes += elem_size; |
| 918 | if (unlikely(or->set_attr.alloc_size < total_bytes)) { |
| 919 | or->set_attr.total_bytes = total_bytes - elem_size; |
| 920 | ret = _alloc_set_attr_list(or, oa, nelem, total_bytes); |
| 921 | if (ret) |
| 922 | return ret; |
| 923 | attr_last = |
| 924 | or->set_attr.buff + or->set_attr.total_bytes; |
| 925 | } |
| 926 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 927 | _osd_req_alist_elem_encode(or, attr_last, oa); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 928 | |
| 929 | attr_last += elem_size; |
| 930 | ++oa; |
| 931 | } |
| 932 | |
| 933 | or->set_attr.total_bytes = total_bytes; |
| 934 | return 0; |
| 935 | } |
| 936 | EXPORT_SYMBOL(osd_req_add_set_attr_list); |
| 937 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 938 | static int _req_append_segment(struct osd_request *or, |
| 939 | unsigned padding, struct _osd_req_data_segment *seg, |
| 940 | struct _osd_req_data_segment *last_seg, struct _osd_io_info *io) |
| 941 | { |
| 942 | void *pad_buff; |
| 943 | int ret; |
| 944 | |
| 945 | if (padding) { |
| 946 | /* check if we can just add it to last buffer */ |
| 947 | if (last_seg && |
| 948 | (padding <= last_seg->alloc_size - last_seg->total_bytes)) |
| 949 | pad_buff = last_seg->buff + last_seg->total_bytes; |
| 950 | else |
| 951 | pad_buff = io->pad_buff; |
| 952 | |
Boaz Harrosh | bc38bf1 | 2009-05-17 18:56:17 +0300 | [diff] [blame] | 953 | ret = blk_rq_map_kern(io->req->q, io->req, pad_buff, padding, |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 954 | or->alloc_flags); |
| 955 | if (ret) |
| 956 | return ret; |
| 957 | io->total_bytes += padding; |
| 958 | } |
| 959 | |
Boaz Harrosh | bc38bf1 | 2009-05-17 18:56:17 +0300 | [diff] [blame] | 960 | ret = blk_rq_map_kern(io->req->q, io->req, seg->buff, seg->total_bytes, |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 961 | or->alloc_flags); |
| 962 | if (ret) |
| 963 | return ret; |
| 964 | |
| 965 | io->total_bytes += seg->total_bytes; |
| 966 | OSD_DEBUG("padding=%d buff=%p total_bytes=%d\n", padding, seg->buff, |
| 967 | seg->total_bytes); |
| 968 | return 0; |
| 969 | } |
| 970 | |
| 971 | static int _osd_req_finalize_set_attr_list(struct osd_request *or) |
| 972 | { |
| 973 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 974 | unsigned padding; |
| 975 | int ret; |
| 976 | |
| 977 | if (!or->set_attr.total_bytes) { |
| 978 | cdbh->attrs_list.set_attr_offset = OSD_OFFSET_UNUSED; |
| 979 | return 0; |
| 980 | } |
| 981 | |
| 982 | cdbh->attrs_list.set_attr_bytes = cpu_to_be32(or->set_attr.total_bytes); |
| 983 | cdbh->attrs_list.set_attr_offset = |
| 984 | osd_req_encode_offset(or, or->out.total_bytes, &padding); |
| 985 | |
| 986 | ret = _req_append_segment(or, padding, &or->set_attr, |
| 987 | or->out.last_seg, &or->out); |
| 988 | if (ret) |
| 989 | return ret; |
| 990 | |
| 991 | or->out.last_seg = &or->set_attr; |
| 992 | return 0; |
| 993 | } |
| 994 | |
| 995 | int osd_req_add_get_attr_list(struct osd_request *or, |
| 996 | const struct osd_attr *oa, unsigned nelem) |
| 997 | { |
| 998 | unsigned total_bytes = or->enc_get_attr.total_bytes; |
| 999 | void *attr_last; |
| 1000 | int ret; |
| 1001 | |
| 1002 | if (or->attributes_mode && |
| 1003 | or->attributes_mode != OSD_CDB_GET_SET_ATTR_LISTS) { |
| 1004 | WARN_ON(1); |
| 1005 | return -EINVAL; |
| 1006 | } |
| 1007 | or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS; |
| 1008 | |
| 1009 | /* first time calc data-in list header size */ |
| 1010 | if (!or->get_attr.total_bytes) |
| 1011 | or->get_attr.total_bytes = _osd_req_sizeof_alist_header(or); |
| 1012 | |
| 1013 | /* calc data-out info */ |
| 1014 | if (!total_bytes) { /* first-time: allocate and put list header */ |
| 1015 | unsigned max_bytes; |
| 1016 | |
| 1017 | total_bytes = _osd_req_sizeof_alist_header(or); |
| 1018 | max_bytes = total_bytes + |
| 1019 | nelem * sizeof(struct osd_attributes_list_attrid); |
| 1020 | ret = _alloc_get_attr_desc(or, max_bytes); |
| 1021 | if (ret) |
| 1022 | return ret; |
| 1023 | |
| 1024 | _osd_req_set_alist_type(or, or->enc_get_attr.buff, |
| 1025 | OSD_ATTR_LIST_GET); |
| 1026 | } |
| 1027 | attr_last = or->enc_get_attr.buff + total_bytes; |
| 1028 | |
| 1029 | for (; nelem; --nelem) { |
| 1030 | struct osd_attributes_list_attrid *attrid; |
| 1031 | const unsigned cur_size = sizeof(*attrid); |
| 1032 | |
| 1033 | total_bytes += cur_size; |
| 1034 | if (unlikely(or->enc_get_attr.alloc_size < total_bytes)) { |
| 1035 | or->enc_get_attr.total_bytes = total_bytes - cur_size; |
| 1036 | ret = _alloc_get_attr_desc(or, |
| 1037 | total_bytes + nelem * sizeof(*attrid)); |
| 1038 | if (ret) |
| 1039 | return ret; |
| 1040 | attr_last = or->enc_get_attr.buff + |
| 1041 | or->enc_get_attr.total_bytes; |
| 1042 | } |
| 1043 | |
| 1044 | attrid = attr_last; |
| 1045 | attrid->attr_page = cpu_to_be32(oa->attr_page); |
| 1046 | attrid->attr_id = cpu_to_be32(oa->attr_id); |
| 1047 | |
| 1048 | attr_last += cur_size; |
| 1049 | |
| 1050 | /* calc data-in size */ |
| 1051 | or->get_attr.total_bytes += |
| 1052 | _osd_req_alist_elem_size(or, oa->len); |
| 1053 | ++oa; |
| 1054 | } |
| 1055 | |
| 1056 | or->enc_get_attr.total_bytes = total_bytes; |
| 1057 | |
| 1058 | OSD_DEBUG( |
| 1059 | "get_attr.total_bytes=%u(%u) enc_get_attr.total_bytes=%u(%Zu)\n", |
| 1060 | or->get_attr.total_bytes, |
| 1061 | or->get_attr.total_bytes - _osd_req_sizeof_alist_header(or), |
| 1062 | or->enc_get_attr.total_bytes, |
| 1063 | (or->enc_get_attr.total_bytes - _osd_req_sizeof_alist_header(or)) |
| 1064 | / sizeof(struct osd_attributes_list_attrid)); |
| 1065 | |
| 1066 | return 0; |
| 1067 | } |
| 1068 | EXPORT_SYMBOL(osd_req_add_get_attr_list); |
| 1069 | |
| 1070 | static int _osd_req_finalize_get_attr_list(struct osd_request *or) |
| 1071 | { |
| 1072 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1073 | unsigned out_padding; |
| 1074 | unsigned in_padding; |
| 1075 | int ret; |
| 1076 | |
| 1077 | if (!or->enc_get_attr.total_bytes) { |
| 1078 | cdbh->attrs_list.get_attr_desc_offset = OSD_OFFSET_UNUSED; |
| 1079 | cdbh->attrs_list.get_attr_offset = OSD_OFFSET_UNUSED; |
| 1080 | return 0; |
| 1081 | } |
| 1082 | |
| 1083 | ret = _alloc_get_attr_list(or); |
| 1084 | if (ret) |
| 1085 | return ret; |
| 1086 | |
| 1087 | /* The out-going buffer info update */ |
| 1088 | OSD_DEBUG("out-going\n"); |
| 1089 | cdbh->attrs_list.get_attr_desc_bytes = |
| 1090 | cpu_to_be32(or->enc_get_attr.total_bytes); |
| 1091 | |
| 1092 | cdbh->attrs_list.get_attr_desc_offset = |
| 1093 | osd_req_encode_offset(or, or->out.total_bytes, &out_padding); |
| 1094 | |
| 1095 | ret = _req_append_segment(or, out_padding, &or->enc_get_attr, |
| 1096 | or->out.last_seg, &or->out); |
| 1097 | if (ret) |
| 1098 | return ret; |
| 1099 | or->out.last_seg = &or->enc_get_attr; |
| 1100 | |
| 1101 | /* The incoming buffer info update */ |
| 1102 | OSD_DEBUG("in-coming\n"); |
| 1103 | cdbh->attrs_list.get_attr_alloc_length = |
| 1104 | cpu_to_be32(or->get_attr.total_bytes); |
| 1105 | |
| 1106 | cdbh->attrs_list.get_attr_offset = |
| 1107 | osd_req_encode_offset(or, or->in.total_bytes, &in_padding); |
| 1108 | |
| 1109 | ret = _req_append_segment(or, in_padding, &or->get_attr, NULL, |
| 1110 | &or->in); |
| 1111 | if (ret) |
| 1112 | return ret; |
| 1113 | or->in.last_seg = &or->get_attr; |
| 1114 | |
| 1115 | return 0; |
| 1116 | } |
| 1117 | |
| 1118 | int osd_req_decode_get_attr_list(struct osd_request *or, |
| 1119 | struct osd_attr *oa, int *nelem, void **iterator) |
| 1120 | { |
| 1121 | unsigned cur_bytes, returned_bytes; |
| 1122 | int n; |
| 1123 | const unsigned sizeof_attr_list = _osd_req_sizeof_alist_header(or); |
| 1124 | void *cur_p; |
| 1125 | |
| 1126 | if (!_osd_req_is_alist_type(or, or->get_attr.buff, |
| 1127 | OSD_ATTR_LIST_SET_RETRIEVE)) { |
| 1128 | oa->attr_page = 0; |
| 1129 | oa->attr_id = 0; |
| 1130 | oa->val_ptr = NULL; |
| 1131 | oa->len = 0; |
| 1132 | *iterator = NULL; |
| 1133 | return 0; |
| 1134 | } |
| 1135 | |
| 1136 | if (*iterator) { |
| 1137 | BUG_ON((*iterator < or->get_attr.buff) || |
| 1138 | (or->get_attr.buff + or->get_attr.alloc_size < *iterator)); |
| 1139 | cur_p = *iterator; |
| 1140 | cur_bytes = (*iterator - or->get_attr.buff) - sizeof_attr_list; |
| 1141 | returned_bytes = or->get_attr.total_bytes; |
| 1142 | } else { /* first time decode the list header */ |
| 1143 | cur_bytes = sizeof_attr_list; |
| 1144 | returned_bytes = _osd_req_alist_size(or, or->get_attr.buff) + |
| 1145 | sizeof_attr_list; |
| 1146 | |
| 1147 | cur_p = or->get_attr.buff + sizeof_attr_list; |
| 1148 | |
| 1149 | if (returned_bytes > or->get_attr.alloc_size) { |
| 1150 | OSD_DEBUG("target report: space was not big enough! " |
| 1151 | "Allocate=%u Needed=%u\n", |
| 1152 | or->get_attr.alloc_size, |
| 1153 | returned_bytes + sizeof_attr_list); |
| 1154 | |
| 1155 | returned_bytes = |
| 1156 | or->get_attr.alloc_size - sizeof_attr_list; |
| 1157 | } |
| 1158 | or->get_attr.total_bytes = returned_bytes; |
| 1159 | } |
| 1160 | |
| 1161 | for (n = 0; (n < *nelem) && (cur_bytes < returned_bytes); ++n) { |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 1162 | int inc = _osd_req_alist_elem_decode(or, cur_p, oa, |
| 1163 | returned_bytes - cur_bytes); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1164 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 1165 | if (inc < 0) { |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1166 | OSD_ERR("BAD FOOD from target. list not valid!" |
| 1167 | "c=%d r=%d n=%d\n", |
| 1168 | cur_bytes, returned_bytes, n); |
| 1169 | oa->val_ptr = NULL; |
| 1170 | break; |
| 1171 | } |
| 1172 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 1173 | cur_bytes += inc; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1174 | cur_p += inc; |
| 1175 | ++oa; |
| 1176 | } |
| 1177 | |
| 1178 | *iterator = (returned_bytes - cur_bytes) ? cur_p : NULL; |
| 1179 | *nelem = n; |
| 1180 | return returned_bytes - cur_bytes; |
| 1181 | } |
| 1182 | EXPORT_SYMBOL(osd_req_decode_get_attr_list); |
| 1183 | |
| 1184 | /* |
| 1185 | * Attributes Page-mode |
| 1186 | */ |
| 1187 | |
| 1188 | int osd_req_add_get_attr_page(struct osd_request *or, |
| 1189 | u32 page_id, void *attar_page, unsigned max_page_len, |
| 1190 | const struct osd_attr *set_one_attr) |
| 1191 | { |
| 1192 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1193 | |
| 1194 | if (or->attributes_mode && |
| 1195 | or->attributes_mode != OSD_CDB_GET_ATTR_PAGE_SET_ONE) { |
| 1196 | WARN_ON(1); |
| 1197 | return -EINVAL; |
| 1198 | } |
| 1199 | or->attributes_mode = OSD_CDB_GET_ATTR_PAGE_SET_ONE; |
| 1200 | |
| 1201 | or->get_attr.buff = attar_page; |
| 1202 | or->get_attr.total_bytes = max_page_len; |
| 1203 | |
| 1204 | or->set_attr.buff = set_one_attr->val_ptr; |
| 1205 | or->set_attr.total_bytes = set_one_attr->len; |
| 1206 | |
| 1207 | cdbh->attrs_page.get_attr_page = cpu_to_be32(page_id); |
| 1208 | cdbh->attrs_page.get_attr_alloc_length = cpu_to_be32(max_page_len); |
| 1209 | /* ocdb->attrs_page.get_attr_offset; */ |
| 1210 | |
| 1211 | cdbh->attrs_page.set_attr_page = cpu_to_be32(set_one_attr->attr_page); |
| 1212 | cdbh->attrs_page.set_attr_id = cpu_to_be32(set_one_attr->attr_id); |
| 1213 | cdbh->attrs_page.set_attr_length = cpu_to_be32(set_one_attr->len); |
| 1214 | /* ocdb->attrs_page.set_attr_offset; */ |
| 1215 | return 0; |
| 1216 | } |
| 1217 | EXPORT_SYMBOL(osd_req_add_get_attr_page); |
| 1218 | |
| 1219 | static int _osd_req_finalize_attr_page(struct osd_request *or) |
| 1220 | { |
| 1221 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1222 | unsigned in_padding, out_padding; |
| 1223 | int ret; |
| 1224 | |
| 1225 | /* returned page */ |
| 1226 | cdbh->attrs_page.get_attr_offset = |
| 1227 | osd_req_encode_offset(or, or->in.total_bytes, &in_padding); |
| 1228 | |
| 1229 | ret = _req_append_segment(or, in_padding, &or->get_attr, NULL, |
| 1230 | &or->in); |
| 1231 | if (ret) |
| 1232 | return ret; |
| 1233 | |
| 1234 | /* set one value */ |
| 1235 | cdbh->attrs_page.set_attr_offset = |
| 1236 | osd_req_encode_offset(or, or->out.total_bytes, &out_padding); |
| 1237 | |
| 1238 | ret = _req_append_segment(or, out_padding, &or->enc_get_attr, NULL, |
| 1239 | &or->out); |
| 1240 | return ret; |
| 1241 | } |
| 1242 | |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 1243 | static inline void osd_sec_parms_set_out_offset(bool is_v1, |
| 1244 | struct osd_security_parameters *sec_parms, osd_cdb_offset offset) |
| 1245 | { |
| 1246 | if (is_v1) |
| 1247 | sec_parms->v1.data_out_integrity_check_offset = offset; |
| 1248 | else |
| 1249 | sec_parms->v2.data_out_integrity_check_offset = offset; |
| 1250 | } |
| 1251 | |
| 1252 | static inline void osd_sec_parms_set_in_offset(bool is_v1, |
| 1253 | struct osd_security_parameters *sec_parms, osd_cdb_offset offset) |
| 1254 | { |
| 1255 | if (is_v1) |
| 1256 | sec_parms->v1.data_in_integrity_check_offset = offset; |
| 1257 | else |
| 1258 | sec_parms->v2.data_in_integrity_check_offset = offset; |
| 1259 | } |
| 1260 | |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1261 | static int _osd_req_finalize_data_integrity(struct osd_request *or, |
Boaz Harrosh | 546881a | 2009-05-24 20:04:00 +0300 | [diff] [blame] | 1262 | bool has_in, bool has_out, u64 out_data_bytes, const u8 *cap_key) |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1263 | { |
| 1264 | struct osd_security_parameters *sec_parms = _osd_req_sec_params(or); |
| 1265 | int ret; |
| 1266 | |
| 1267 | if (!osd_is_sec_alldata(sec_parms)) |
| 1268 | return 0; |
| 1269 | |
| 1270 | if (has_out) { |
| 1271 | struct _osd_req_data_segment seg = { |
| 1272 | .buff = &or->out_data_integ, |
| 1273 | .total_bytes = sizeof(or->out_data_integ), |
| 1274 | }; |
| 1275 | unsigned pad; |
| 1276 | |
Boaz Harrosh | 546881a | 2009-05-24 20:04:00 +0300 | [diff] [blame] | 1277 | or->out_data_integ.data_bytes = cpu_to_be64(out_data_bytes); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1278 | or->out_data_integ.set_attributes_bytes = cpu_to_be64( |
| 1279 | or->set_attr.total_bytes); |
| 1280 | or->out_data_integ.get_attributes_bytes = cpu_to_be64( |
| 1281 | or->enc_get_attr.total_bytes); |
| 1282 | |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 1283 | osd_sec_parms_set_out_offset(osd_req_is_ver1(or), sec_parms, |
| 1284 | osd_req_encode_offset(or, or->out.total_bytes, &pad)); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1285 | |
| 1286 | ret = _req_append_segment(or, pad, &seg, or->out.last_seg, |
| 1287 | &or->out); |
| 1288 | if (ret) |
| 1289 | return ret; |
| 1290 | or->out.last_seg = NULL; |
| 1291 | |
| 1292 | /* they are now all chained to request sign them all together */ |
| 1293 | osd_sec_sign_data(&or->out_data_integ, or->out.req->bio, |
| 1294 | cap_key); |
| 1295 | } |
| 1296 | |
| 1297 | if (has_in) { |
| 1298 | struct _osd_req_data_segment seg = { |
| 1299 | .buff = &or->in_data_integ, |
| 1300 | .total_bytes = sizeof(or->in_data_integ), |
| 1301 | }; |
| 1302 | unsigned pad; |
| 1303 | |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 1304 | osd_sec_parms_set_in_offset(osd_req_is_ver1(or), sec_parms, |
| 1305 | osd_req_encode_offset(or, or->in.total_bytes, &pad)); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1306 | |
| 1307 | ret = _req_append_segment(or, pad, &seg, or->in.last_seg, |
| 1308 | &or->in); |
| 1309 | if (ret) |
| 1310 | return ret; |
| 1311 | |
| 1312 | or->in.last_seg = NULL; |
| 1313 | } |
| 1314 | |
| 1315 | return 0; |
| 1316 | } |
| 1317 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1318 | /* |
| 1319 | * osd_finalize_request and helpers |
| 1320 | */ |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1321 | static struct request *_make_request(struct request_queue *q, bool has_write, |
| 1322 | struct _osd_io_info *oii, gfp_t flags) |
| 1323 | { |
| 1324 | if (oii->bio) |
| 1325 | return blk_make_request(q, oii->bio, flags); |
| 1326 | else { |
| 1327 | struct request *req; |
| 1328 | |
| 1329 | req = blk_get_request(q, has_write ? WRITE : READ, flags); |
| 1330 | if (unlikely(!req)) |
| 1331 | return ERR_PTR(-ENOMEM); |
| 1332 | |
| 1333 | return req; |
| 1334 | } |
| 1335 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1336 | |
| 1337 | static int _init_blk_request(struct osd_request *or, |
| 1338 | bool has_in, bool has_out) |
| 1339 | { |
| 1340 | gfp_t flags = or->alloc_flags; |
| 1341 | struct scsi_device *scsi_device = or->osd_dev->scsi_device; |
| 1342 | struct request_queue *q = scsi_device->request_queue; |
| 1343 | struct request *req; |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1344 | int ret; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1345 | |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1346 | req = _make_request(q, has_out, has_out ? &or->out : &or->in, flags); |
| 1347 | if (IS_ERR(req)) { |
| 1348 | ret = PTR_ERR(req); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1349 | goto out; |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1350 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1351 | |
| 1352 | or->request = req; |
| 1353 | req->cmd_type = REQ_TYPE_BLOCK_PC; |
Boaz Harrosh | 0330679 | 2009-05-24 20:05:43 +0300 | [diff] [blame] | 1354 | req->cmd_flags |= REQ_QUIET; |
| 1355 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1356 | req->timeout = or->timeout; |
| 1357 | req->retries = or->retries; |
| 1358 | req->sense = or->sense; |
| 1359 | req->sense_len = 0; |
| 1360 | |
| 1361 | if (has_out) { |
| 1362 | or->out.req = req; |
| 1363 | if (has_in) { |
| 1364 | /* allocate bidi request */ |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1365 | req = _make_request(q, false, &or->in, flags); |
| 1366 | if (IS_ERR(req)) { |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1367 | OSD_DEBUG("blk_get_request for bidi failed\n"); |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1368 | ret = PTR_ERR(req); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1369 | goto out; |
| 1370 | } |
| 1371 | req->cmd_type = REQ_TYPE_BLOCK_PC; |
| 1372 | or->in.req = or->request->next_rq = req; |
| 1373 | } |
| 1374 | } else if (has_in) |
| 1375 | or->in.req = req; |
| 1376 | |
| 1377 | ret = 0; |
| 1378 | out: |
| 1379 | OSD_DEBUG("or=%p has_in=%d has_out=%d => %d, %p\n", |
| 1380 | or, has_in, has_out, ret, or->request); |
| 1381 | return ret; |
| 1382 | } |
| 1383 | |
| 1384 | int osd_finalize_request(struct osd_request *or, |
| 1385 | u8 options, const void *cap, const u8 *cap_key) |
| 1386 | { |
| 1387 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1388 | bool has_in, has_out; |
Boaz Harrosh | 546881a | 2009-05-24 20:04:00 +0300 | [diff] [blame] | 1389 | u64 out_data_bytes = or->out.total_bytes; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1390 | int ret; |
| 1391 | |
| 1392 | if (options & OSD_REQ_FUA) |
| 1393 | cdbh->options |= OSD_CDB_FUA; |
| 1394 | |
| 1395 | if (options & OSD_REQ_DPO) |
| 1396 | cdbh->options |= OSD_CDB_DPO; |
| 1397 | |
| 1398 | if (options & OSD_REQ_BYPASS_TIMESTAMPS) |
| 1399 | cdbh->timestamp_control = OSD_CDB_BYPASS_TIMESTAMPS; |
| 1400 | |
| 1401 | osd_set_caps(&or->cdb, cap); |
| 1402 | |
| 1403 | has_in = or->in.bio || or->get_attr.total_bytes; |
| 1404 | has_out = or->out.bio || or->set_attr.total_bytes || |
| 1405 | or->enc_get_attr.total_bytes; |
| 1406 | |
| 1407 | ret = _init_blk_request(or, has_in, has_out); |
| 1408 | if (ret) { |
| 1409 | OSD_DEBUG("_init_blk_request failed\n"); |
| 1410 | return ret; |
| 1411 | } |
| 1412 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1413 | or->out.pad_buff = sg_out_pad_buffer; |
| 1414 | or->in.pad_buff = sg_in_pad_buffer; |
| 1415 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1416 | if (!or->attributes_mode) |
| 1417 | or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS; |
| 1418 | cdbh->command_specific_options |= or->attributes_mode; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1419 | if (or->attributes_mode == OSD_CDB_GET_ATTR_PAGE_SET_ONE) { |
| 1420 | ret = _osd_req_finalize_attr_page(or); |
| 1421 | } else { |
| 1422 | /* TODO: I think that for the GET_ATTR command these 2 should |
| 1423 | * be reversed to keep them in execution order (for embeded |
| 1424 | * targets with low memory footprint) |
| 1425 | */ |
| 1426 | ret = _osd_req_finalize_set_attr_list(or); |
| 1427 | if (ret) { |
| 1428 | OSD_DEBUG("_osd_req_finalize_set_attr_list failed\n"); |
| 1429 | return ret; |
| 1430 | } |
| 1431 | |
| 1432 | ret = _osd_req_finalize_get_attr_list(or); |
| 1433 | if (ret) { |
| 1434 | OSD_DEBUG("_osd_req_finalize_get_attr_list failed\n"); |
| 1435 | return ret; |
| 1436 | } |
| 1437 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1438 | |
Boaz Harrosh | 546881a | 2009-05-24 20:04:00 +0300 | [diff] [blame] | 1439 | ret = _osd_req_finalize_data_integrity(or, has_in, has_out, |
| 1440 | out_data_bytes, cap_key); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1441 | if (ret) |
| 1442 | return ret; |
| 1443 | |
| 1444 | osd_sec_sign_cdb(&or->cdb, cap_key); |
| 1445 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1446 | or->request->cmd = or->cdb.buff; |
| 1447 | or->request->cmd_len = _osd_req_cdb_len(or); |
| 1448 | |
| 1449 | return 0; |
| 1450 | } |
| 1451 | EXPORT_SYMBOL(osd_finalize_request); |
| 1452 | |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1453 | #define OSD_SENSE_PRINT1(fmt, a...) \ |
| 1454 | do { \ |
| 1455 | if (__cur_sense_need_output) \ |
| 1456 | OSD_ERR(fmt, ##a); \ |
| 1457 | } while (0) |
| 1458 | |
| 1459 | #define OSD_SENSE_PRINT2(fmt, a...) OSD_SENSE_PRINT1(" " fmt, ##a) |
| 1460 | |
| 1461 | int osd_req_decode_sense_full(struct osd_request *or, |
| 1462 | struct osd_sense_info *osi, bool silent, |
| 1463 | struct osd_obj_id *bad_obj_list __unused, int max_obj __unused, |
| 1464 | struct osd_attr *bad_attr_list, int max_attr) |
| 1465 | { |
| 1466 | int sense_len, original_sense_len; |
| 1467 | struct osd_sense_info local_osi; |
| 1468 | struct scsi_sense_descriptor_based *ssdb; |
| 1469 | void *cur_descriptor; |
| 1470 | #if (CONFIG_SCSI_OSD_DPRINT_SENSE == 0) |
| 1471 | const bool __cur_sense_need_output = false; |
| 1472 | #else |
| 1473 | bool __cur_sense_need_output = !silent; |
| 1474 | #endif |
| 1475 | |
| 1476 | if (!or->request->errors) |
| 1477 | return 0; |
| 1478 | |
| 1479 | ssdb = or->request->sense; |
| 1480 | sense_len = or->request->sense_len; |
| 1481 | if ((sense_len < (int)sizeof(*ssdb) || !ssdb->sense_key)) { |
| 1482 | OSD_ERR("Block-layer returned error(0x%x) but " |
| 1483 | "sense_len(%u) || key(%d) is empty\n", |
| 1484 | or->request->errors, sense_len, ssdb->sense_key); |
| 1485 | return -EIO; |
| 1486 | } |
| 1487 | |
| 1488 | if ((ssdb->response_code != 0x72) && (ssdb->response_code != 0x73)) { |
| 1489 | OSD_ERR("Unrecognized scsi sense: rcode=%x length=%d\n", |
| 1490 | ssdb->response_code, sense_len); |
| 1491 | return -EIO; |
| 1492 | } |
| 1493 | |
| 1494 | osi = osi ? : &local_osi; |
| 1495 | memset(osi, 0, sizeof(*osi)); |
| 1496 | osi->key = ssdb->sense_key; |
| 1497 | osi->additional_code = be16_to_cpu(ssdb->additional_sense_code); |
| 1498 | original_sense_len = ssdb->additional_sense_length + 8; |
| 1499 | |
| 1500 | #if (CONFIG_SCSI_OSD_DPRINT_SENSE == 1) |
| 1501 | if (__cur_sense_need_output) |
| 1502 | __cur_sense_need_output = (osi->key > scsi_sk_recovered_error); |
| 1503 | #endif |
| 1504 | OSD_SENSE_PRINT1("Main Sense information key=0x%x length(%d, %d) " |
| 1505 | "additional_code=0x%x\n", |
| 1506 | osi->key, original_sense_len, sense_len, |
| 1507 | osi->additional_code); |
| 1508 | |
| 1509 | if (original_sense_len < sense_len) |
| 1510 | sense_len = original_sense_len; |
| 1511 | |
| 1512 | cur_descriptor = ssdb->ssd; |
| 1513 | sense_len -= sizeof(*ssdb); |
| 1514 | while (sense_len > 0) { |
| 1515 | struct scsi_sense_descriptor *ssd = cur_descriptor; |
| 1516 | int cur_len = ssd->additional_length + 2; |
| 1517 | |
| 1518 | sense_len -= cur_len; |
| 1519 | |
| 1520 | if (sense_len < 0) |
| 1521 | break; /* sense was truncated */ |
| 1522 | |
| 1523 | switch (ssd->descriptor_type) { |
| 1524 | case scsi_sense_information: |
| 1525 | case scsi_sense_command_specific_information: |
| 1526 | { |
| 1527 | struct scsi_sense_command_specific_data_descriptor |
| 1528 | *sscd = cur_descriptor; |
| 1529 | |
| 1530 | osi->command_info = |
| 1531 | get_unaligned_be64(&sscd->information) ; |
| 1532 | OSD_SENSE_PRINT2( |
| 1533 | "command_specific_information 0x%llx \n", |
| 1534 | _LLU(osi->command_info)); |
| 1535 | break; |
| 1536 | } |
| 1537 | case scsi_sense_key_specific: |
| 1538 | { |
| 1539 | struct scsi_sense_key_specific_data_descriptor |
| 1540 | *ssks = cur_descriptor; |
| 1541 | |
| 1542 | osi->sense_info = get_unaligned_be16(&ssks->value); |
| 1543 | OSD_SENSE_PRINT2( |
| 1544 | "sense_key_specific_information %u" |
| 1545 | "sksv_cd_bpv_bp (0x%x)\n", |
| 1546 | osi->sense_info, ssks->sksv_cd_bpv_bp); |
| 1547 | break; |
| 1548 | } |
| 1549 | case osd_sense_object_identification: |
| 1550 | { /*FIXME: Keep first not last, Store in array*/ |
| 1551 | struct osd_sense_identification_data_descriptor |
| 1552 | *osidd = cur_descriptor; |
| 1553 | |
| 1554 | osi->not_initiated_command_functions = |
| 1555 | le32_to_cpu(osidd->not_initiated_functions); |
| 1556 | osi->completed_command_functions = |
| 1557 | le32_to_cpu(osidd->completed_functions); |
| 1558 | osi->obj.partition = be64_to_cpu(osidd->partition_id); |
| 1559 | osi->obj.id = be64_to_cpu(osidd->object_id); |
| 1560 | OSD_SENSE_PRINT2( |
| 1561 | "object_identification pid=0x%llx oid=0x%llx\n", |
| 1562 | _LLU(osi->obj.partition), _LLU(osi->obj.id)); |
| 1563 | OSD_SENSE_PRINT2( |
| 1564 | "not_initiated_bits(%x) " |
| 1565 | "completed_command_bits(%x)\n", |
| 1566 | osi->not_initiated_command_functions, |
| 1567 | osi->completed_command_functions); |
| 1568 | break; |
| 1569 | } |
| 1570 | case osd_sense_response_integrity_check: |
| 1571 | { |
| 1572 | struct osd_sense_response_integrity_check_descriptor |
| 1573 | *osricd = cur_descriptor; |
| 1574 | const unsigned len = |
| 1575 | sizeof(osricd->integrity_check_value); |
| 1576 | char key_dump[len*4 + 2]; /* 2nibbles+space+ASCII */ |
| 1577 | |
| 1578 | hex_dump_to_buffer(osricd->integrity_check_value, len, |
| 1579 | 32, 1, key_dump, sizeof(key_dump), true); |
| 1580 | OSD_SENSE_PRINT2("response_integrity [%s]\n", key_dump); |
| 1581 | } |
| 1582 | case osd_sense_attribute_identification: |
| 1583 | { |
| 1584 | struct osd_sense_attributes_data_descriptor |
| 1585 | *osadd = cur_descriptor; |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame^] | 1586 | unsigned len = min(cur_len, sense_len); |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1587 | struct osd_sense_attr *pattr = osadd->sense_attrs; |
| 1588 | |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame^] | 1589 | while (len >= sizeof(*pattr)) { |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1590 | u32 attr_page = be32_to_cpu(pattr->attr_page); |
| 1591 | u32 attr_id = be32_to_cpu(pattr->attr_id); |
| 1592 | |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame^] | 1593 | if (!osi->attr.attr_page) { |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1594 | osi->attr.attr_page = attr_page; |
| 1595 | osi->attr.attr_id = attr_id; |
| 1596 | } |
| 1597 | |
| 1598 | if (bad_attr_list && max_attr) { |
| 1599 | bad_attr_list->attr_page = attr_page; |
| 1600 | bad_attr_list->attr_id = attr_id; |
| 1601 | bad_attr_list++; |
| 1602 | max_attr--; |
| 1603 | } |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame^] | 1604 | |
| 1605 | len -= sizeof(*pattr); |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1606 | OSD_SENSE_PRINT2( |
| 1607 | "osd_sense_attribute_identification" |
| 1608 | "attr_page=0x%x attr_id=0x%x\n", |
| 1609 | attr_page, attr_id); |
| 1610 | } |
| 1611 | } |
| 1612 | /*These are not legal for OSD*/ |
| 1613 | case scsi_sense_field_replaceable_unit: |
| 1614 | OSD_SENSE_PRINT2("scsi_sense_field_replaceable_unit\n"); |
| 1615 | break; |
| 1616 | case scsi_sense_stream_commands: |
| 1617 | OSD_SENSE_PRINT2("scsi_sense_stream_commands\n"); |
| 1618 | break; |
| 1619 | case scsi_sense_block_commands: |
| 1620 | OSD_SENSE_PRINT2("scsi_sense_block_commands\n"); |
| 1621 | break; |
| 1622 | case scsi_sense_ata_return: |
| 1623 | OSD_SENSE_PRINT2("scsi_sense_ata_return\n"); |
| 1624 | break; |
| 1625 | default: |
| 1626 | if (ssd->descriptor_type <= scsi_sense_Reserved_last) |
| 1627 | OSD_SENSE_PRINT2( |
| 1628 | "scsi_sense Reserved descriptor (0x%x)", |
| 1629 | ssd->descriptor_type); |
| 1630 | else |
| 1631 | OSD_SENSE_PRINT2( |
| 1632 | "scsi_sense Vendor descriptor (0x%x)", |
| 1633 | ssd->descriptor_type); |
| 1634 | } |
| 1635 | |
| 1636 | cur_descriptor += cur_len; |
| 1637 | } |
| 1638 | |
| 1639 | return (osi->key > scsi_sk_recovered_error) ? -EIO : 0; |
| 1640 | } |
| 1641 | EXPORT_SYMBOL(osd_req_decode_sense_full); |
| 1642 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1643 | /* |
| 1644 | * Implementation of osd_sec.h API |
| 1645 | * TODO: Move to a separate osd_sec.c file at a later stage. |
| 1646 | */ |
| 1647 | |
| 1648 | enum { OSD_SEC_CAP_V1_ALL_CAPS = |
| 1649 | OSD_SEC_CAP_APPEND | OSD_SEC_CAP_OBJ_MGMT | OSD_SEC_CAP_REMOVE | |
| 1650 | OSD_SEC_CAP_CREATE | OSD_SEC_CAP_SET_ATTR | OSD_SEC_CAP_GET_ATTR | |
| 1651 | OSD_SEC_CAP_WRITE | OSD_SEC_CAP_READ | OSD_SEC_CAP_POL_SEC | |
| 1652 | OSD_SEC_CAP_GLOBAL | OSD_SEC_CAP_DEV_MGMT |
| 1653 | }; |
| 1654 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 1655 | enum { OSD_SEC_CAP_V2_ALL_CAPS = |
| 1656 | OSD_SEC_CAP_V1_ALL_CAPS | OSD_SEC_CAP_QUERY | OSD_SEC_CAP_M_OBJECT |
| 1657 | }; |
| 1658 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1659 | void osd_sec_init_nosec_doall_caps(void *caps, |
| 1660 | const struct osd_obj_id *obj, bool is_collection, const bool is_v1) |
| 1661 | { |
| 1662 | struct osd_capability *cap = caps; |
| 1663 | u8 type; |
| 1664 | u8 descriptor_type; |
| 1665 | |
| 1666 | if (likely(obj->id)) { |
| 1667 | if (unlikely(is_collection)) { |
| 1668 | type = OSD_SEC_OBJ_COLLECTION; |
| 1669 | descriptor_type = is_v1 ? OSD_SEC_OBJ_DESC_OBJ : |
| 1670 | OSD_SEC_OBJ_DESC_COL; |
| 1671 | } else { |
| 1672 | type = OSD_SEC_OBJ_USER; |
| 1673 | descriptor_type = OSD_SEC_OBJ_DESC_OBJ; |
| 1674 | } |
| 1675 | WARN_ON(!obj->partition); |
| 1676 | } else { |
| 1677 | type = obj->partition ? OSD_SEC_OBJ_PARTITION : |
| 1678 | OSD_SEC_OBJ_ROOT; |
| 1679 | descriptor_type = OSD_SEC_OBJ_DESC_PAR; |
| 1680 | } |
| 1681 | |
| 1682 | memset(cap, 0, sizeof(*cap)); |
| 1683 | |
| 1684 | cap->h.format = OSD_SEC_CAP_FORMAT_VER1; |
| 1685 | cap->h.integrity_algorithm__key_version = 0; /* MAKE_BYTE(0, 0); */ |
| 1686 | cap->h.security_method = OSD_SEC_NOSEC; |
| 1687 | /* cap->expiration_time; |
| 1688 | cap->AUDIT[30-10]; |
| 1689 | cap->discriminator[42-30]; |
| 1690 | cap->object_created_time; */ |
| 1691 | cap->h.object_type = type; |
| 1692 | osd_sec_set_caps(&cap->h, OSD_SEC_CAP_V1_ALL_CAPS); |
| 1693 | cap->h.object_descriptor_type = descriptor_type; |
| 1694 | cap->od.obj_desc.policy_access_tag = 0; |
| 1695 | cap->od.obj_desc.allowed_partition_id = cpu_to_be64(obj->partition); |
| 1696 | cap->od.obj_desc.allowed_object_id = cpu_to_be64(obj->id); |
| 1697 | } |
| 1698 | EXPORT_SYMBOL(osd_sec_init_nosec_doall_caps); |
| 1699 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 1700 | /* FIXME: Extract version from caps pointer. |
| 1701 | * Also Pete's target only supports caps from OSDv1 for now |
| 1702 | */ |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1703 | void osd_set_caps(struct osd_cdb *cdb, const void *caps) |
| 1704 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 1705 | bool is_ver1 = true; |
| 1706 | /* NOTE: They start at same address */ |
| 1707 | memcpy(&cdb->v1.caps, caps, is_ver1 ? OSDv1_CAP_LEN : OSD_CAP_LEN); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1708 | } |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1709 | |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1710 | bool osd_is_sec_alldata(struct osd_security_parameters *sec_parms __unused) |
| 1711 | { |
| 1712 | return false; |
| 1713 | } |
| 1714 | |
| 1715 | void osd_sec_sign_cdb(struct osd_cdb *ocdb __unused, const u8 *cap_key __unused) |
| 1716 | { |
| 1717 | } |
| 1718 | |
| 1719 | void osd_sec_sign_data(void *data_integ __unused, |
| 1720 | struct bio *bio __unused, const u8 *cap_key __unused) |
| 1721 | { |
| 1722 | } |
| 1723 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1724 | /* |
| 1725 | * Declared in osd_protocol.h |
| 1726 | * 4.12.5 Data-In and Data-Out buffer offsets |
| 1727 | * byte offset = mantissa * (2^(exponent+8)) |
| 1728 | * Returns the smallest allowed encoded offset that contains given @offset |
| 1729 | * The actual encoded offset returned is @offset + *@padding. |
| 1730 | */ |
| 1731 | osd_cdb_offset __osd_encode_offset( |
| 1732 | u64 offset, unsigned *padding, int min_shift, int max_shift) |
| 1733 | { |
| 1734 | u64 try_offset = -1, mod, align; |
| 1735 | osd_cdb_offset be32_offset; |
| 1736 | int shift; |
| 1737 | |
| 1738 | *padding = 0; |
| 1739 | if (!offset) |
| 1740 | return 0; |
| 1741 | |
| 1742 | for (shift = min_shift; shift < max_shift; ++shift) { |
| 1743 | try_offset = offset >> shift; |
| 1744 | if (try_offset < (1 << OSD_OFFSET_MAX_BITS)) |
| 1745 | break; |
| 1746 | } |
| 1747 | |
| 1748 | BUG_ON(shift == max_shift); |
| 1749 | |
| 1750 | align = 1 << shift; |
| 1751 | mod = offset & (align - 1); |
| 1752 | if (mod) { |
| 1753 | *padding = align - mod; |
| 1754 | try_offset += 1; |
| 1755 | } |
| 1756 | |
| 1757 | try_offset |= ((shift - 8) & 0xf) << 28; |
| 1758 | be32_offset = cpu_to_be32((u32)try_offset); |
| 1759 | |
| 1760 | OSD_DEBUG("offset=%llu mantissa=%llu exp=%d encoded=%x pad=%d\n", |
| 1761 | _LLU(offset), _LLU(try_offset & 0x0FFFFFFF), shift, |
| 1762 | be32_offset, *padding); |
| 1763 | return be32_offset; |
| 1764 | } |