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: |
Boaz Harrosh | aa281ac | 2014-10-19 19:38:58 +0300 | [diff] [blame] | 10 | * Boaz Harrosh <ooo@electrozaur.com> |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 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 | |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 42 | #include <linux/slab.h> |
Paul Gortmaker | acf3368f | 2011-05-27 09:47:43 -0400 | [diff] [blame] | 43 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 44 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 45 | #include <scsi/osd_initiator.h> |
| 46 | #include <scsi/osd_sec.h> |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 47 | #include <scsi/osd_attributes.h> |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 48 | #include <scsi/osd_sense.h> |
| 49 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 50 | #include <scsi/scsi_device.h> |
| 51 | |
| 52 | #include "osd_debug.h" |
| 53 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 54 | #ifndef __unused |
| 55 | # define __unused __attribute__((unused)) |
| 56 | #endif |
| 57 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 58 | enum { OSD_REQ_RETRIES = 1 }; |
| 59 | |
Boaz Harrosh | aa281ac | 2014-10-19 19:38:58 +0300 | [diff] [blame] | 60 | MODULE_AUTHOR("Boaz Harrosh <ooo@electrozaur.com>"); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 61 | MODULE_DESCRIPTION("open-osd initiator library libosd.ko"); |
| 62 | MODULE_LICENSE("GPL"); |
| 63 | |
| 64 | static inline void build_test(void) |
| 65 | { |
| 66 | /* structures were not packed */ |
| 67 | BUILD_BUG_ON(sizeof(struct osd_capability) != OSD_CAP_LEN); |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 68 | BUILD_BUG_ON(sizeof(struct osdv2_cdb) != OSD_TOTAL_CDB_LEN); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 69 | BUILD_BUG_ON(sizeof(struct osdv1_cdb) != OSDv1_TOTAL_CDB_LEN); |
| 70 | } |
| 71 | |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 72 | static const char *_osd_ver_desc(struct osd_request *or) |
| 73 | { |
| 74 | return osd_req_is_ver1(or) ? "OSD1" : "OSD2"; |
| 75 | } |
| 76 | |
| 77 | #define ATTR_DEF_RI(id, len) ATTR_DEF(OSD_APAGE_ROOT_INFORMATION, id, len) |
| 78 | |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 79 | static int _osd_get_print_system_info(struct osd_dev *od, |
| 80 | void *caps, struct osd_dev_info *odi) |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 81 | { |
| 82 | struct osd_request *or; |
| 83 | struct osd_attr get_attrs[] = { |
| 84 | ATTR_DEF_RI(OSD_ATTR_RI_VENDOR_IDENTIFICATION, 8), |
| 85 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_IDENTIFICATION, 16), |
| 86 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_MODEL, 32), |
| 87 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_REVISION_LEVEL, 4), |
| 88 | ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER, 64 /*variable*/), |
| 89 | ATTR_DEF_RI(OSD_ATTR_RI_OSD_NAME, 64 /*variable*/), |
| 90 | ATTR_DEF_RI(OSD_ATTR_RI_TOTAL_CAPACITY, 8), |
| 91 | ATTR_DEF_RI(OSD_ATTR_RI_USED_CAPACITY, 8), |
| 92 | ATTR_DEF_RI(OSD_ATTR_RI_NUMBER_OF_PARTITIONS, 8), |
| 93 | ATTR_DEF_RI(OSD_ATTR_RI_CLOCK, 6), |
| 94 | /* IBM-OSD-SIM Has a bug with this one put it last */ |
| 95 | ATTR_DEF_RI(OSD_ATTR_RI_OSD_SYSTEM_ID, 20), |
| 96 | }; |
| 97 | void *iter = NULL, *pFirst; |
| 98 | int nelem = ARRAY_SIZE(get_attrs), a = 0; |
| 99 | int ret; |
| 100 | |
| 101 | or = osd_start_request(od, GFP_KERNEL); |
| 102 | if (!or) |
| 103 | return -ENOMEM; |
| 104 | |
| 105 | /* get attrs */ |
| 106 | osd_req_get_attributes(or, &osd_root_object); |
| 107 | osd_req_add_get_attr_list(or, get_attrs, ARRAY_SIZE(get_attrs)); |
| 108 | |
| 109 | ret = osd_finalize_request(or, 0, caps, NULL); |
| 110 | if (ret) |
| 111 | goto out; |
| 112 | |
| 113 | ret = osd_execute_request(or); |
| 114 | if (ret) { |
| 115 | OSD_ERR("Failed to detect %s => %d\n", _osd_ver_desc(or), ret); |
| 116 | goto out; |
| 117 | } |
| 118 | |
| 119 | osd_req_decode_get_attr_list(or, get_attrs, &nelem, &iter); |
| 120 | |
| 121 | OSD_INFO("Detected %s device\n", |
| 122 | _osd_ver_desc(or)); |
| 123 | |
| 124 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 125 | OSD_INFO("VENDOR_IDENTIFICATION [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 126 | (char *)pFirst); |
| 127 | |
| 128 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 129 | OSD_INFO("PRODUCT_IDENTIFICATION [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 130 | (char *)pFirst); |
| 131 | |
| 132 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 133 | OSD_INFO("PRODUCT_MODEL [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 134 | (char *)pFirst); |
| 135 | |
| 136 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 137 | OSD_INFO("PRODUCT_REVISION_LEVEL [%u]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 138 | pFirst ? get_unaligned_be32(pFirst) : ~0U); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 139 | |
| 140 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 141 | OSD_INFO("PRODUCT_SERIAL_NUMBER [%s]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 142 | (char *)pFirst); |
| 143 | |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 144 | odi->osdname_len = get_attrs[a].len; |
| 145 | /* Avoid NULL for memcmp optimization 0-length is good enough */ |
| 146 | odi->osdname = kzalloc(odi->osdname_len + 1, GFP_KERNEL); |
Dan Carpenter | 6d1f662 | 2013-01-30 10:06:02 +0300 | [diff] [blame] | 147 | if (!odi->osdname) { |
| 148 | ret = -ENOMEM; |
| 149 | goto out; |
| 150 | } |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 151 | if (odi->osdname_len) |
| 152 | memcpy(odi->osdname, get_attrs[a].val_ptr, odi->osdname_len); |
| 153 | OSD_INFO("OSD_NAME [%s]\n", odi->osdname); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 154 | a++; |
| 155 | |
| 156 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 157 | OSD_INFO("TOTAL_CAPACITY [0x%llx]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 158 | pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 159 | |
| 160 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 161 | OSD_INFO("USED_CAPACITY [0x%llx]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 162 | pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 163 | |
| 164 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 165 | OSD_INFO("NUMBER_OF_PARTITIONS [%llu]\n", |
Boaz Harrosh | 97218a1 | 2009-02-08 18:02:22 +0200 | [diff] [blame] | 166 | pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL); |
| 167 | |
| 168 | if (a >= nelem) |
| 169 | goto out; |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 170 | |
| 171 | /* FIXME: Where are the time utilities */ |
| 172 | pFirst = get_attrs[a++].val_ptr; |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 173 | OSD_INFO("CLOCK [0x%02x%02x%02x%02x%02x%02x]\n", |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 174 | ((char *)pFirst)[0], ((char *)pFirst)[1], |
| 175 | ((char *)pFirst)[2], ((char *)pFirst)[3], |
| 176 | ((char *)pFirst)[4], ((char *)pFirst)[5]); |
| 177 | |
| 178 | if (a < nelem) { /* IBM-OSD-SIM bug, Might not have it */ |
| 179 | unsigned len = get_attrs[a].len; |
| 180 | char sid_dump[32*4 + 2]; /* 2nibbles+space+ASCII */ |
| 181 | |
| 182 | hex_dump_to_buffer(get_attrs[a].val_ptr, len, 32, 1, |
| 183 | sid_dump, sizeof(sid_dump), true); |
Boaz Harrosh | de6b203 | 2009-05-24 20:01:26 +0300 | [diff] [blame] | 184 | OSD_INFO("OSD_SYSTEM_ID(%d)\n" |
| 185 | " [%s]\n", len, sid_dump); |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 186 | |
| 187 | if (unlikely(len > sizeof(odi->systemid))) { |
| 188 | OSD_ERR("OSD Target error: OSD_SYSTEM_ID too long(%d). " |
| 189 | "device idetification might not work\n", len); |
| 190 | len = sizeof(odi->systemid); |
| 191 | } |
| 192 | odi->systemid_len = len; |
| 193 | memcpy(odi->systemid, get_attrs[a].val_ptr, len); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 194 | a++; |
| 195 | } |
| 196 | out: |
| 197 | osd_end_request(or); |
| 198 | return ret; |
| 199 | } |
| 200 | |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 201 | int osd_auto_detect_ver(struct osd_dev *od, |
| 202 | void *caps, struct osd_dev_info *odi) |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 203 | { |
| 204 | int ret; |
| 205 | |
| 206 | /* Auto-detect the osd version */ |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 207 | ret = _osd_get_print_system_info(od, caps, odi); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 208 | if (ret) { |
| 209 | osd_dev_set_ver(od, OSD_VER1); |
| 210 | OSD_DEBUG("converting to OSD1\n"); |
Boaz Harrosh | 2cdd641 | 2009-11-29 16:26:45 +0200 | [diff] [blame] | 211 | ret = _osd_get_print_system_info(od, caps, odi); |
Boaz Harrosh | 1b9dce9 | 2009-01-25 17:13:38 +0200 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | return ret; |
| 215 | } |
| 216 | EXPORT_SYMBOL(osd_auto_detect_ver); |
| 217 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 218 | static unsigned _osd_req_cdb_len(struct osd_request *or) |
| 219 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 220 | 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] | 221 | } |
| 222 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 223 | static unsigned _osd_req_alist_elem_size(struct osd_request *or, unsigned len) |
| 224 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 225 | return osd_req_is_ver1(or) ? |
| 226 | osdv1_attr_list_elem_size(len) : |
| 227 | osdv2_attr_list_elem_size(len); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 228 | } |
| 229 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 230 | static void _osd_req_alist_elem_encode(struct osd_request *or, |
| 231 | void *attr_last, const struct osd_attr *oa) |
| 232 | { |
| 233 | if (osd_req_is_ver1(or)) { |
| 234 | struct osdv1_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 | } else { |
| 241 | struct osdv2_attributes_list_element *attr = attr_last; |
| 242 | |
| 243 | attr->attr_page = cpu_to_be32(oa->attr_page); |
| 244 | attr->attr_id = cpu_to_be32(oa->attr_id); |
| 245 | attr->attr_bytes = cpu_to_be16(oa->len); |
| 246 | memcpy(attr->attr_val, oa->val_ptr, oa->len); |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | static int _osd_req_alist_elem_decode(struct osd_request *or, |
| 251 | void *cur_p, struct osd_attr *oa, unsigned max_bytes) |
| 252 | { |
| 253 | unsigned inc; |
| 254 | if (osd_req_is_ver1(or)) { |
| 255 | struct osdv1_attributes_list_element *attr = cur_p; |
| 256 | |
| 257 | if (max_bytes < sizeof(*attr)) |
| 258 | return -1; |
| 259 | |
| 260 | oa->len = be16_to_cpu(attr->attr_bytes); |
| 261 | inc = _osd_req_alist_elem_size(or, oa->len); |
| 262 | if (inc > max_bytes) |
| 263 | return -1; |
| 264 | |
| 265 | oa->attr_page = be32_to_cpu(attr->attr_page); |
| 266 | oa->attr_id = be32_to_cpu(attr->attr_id); |
| 267 | |
| 268 | /* OSD1: On empty attributes we return a pointer to 2 bytes |
| 269 | * of zeros. This keeps similar behaviour with OSD2. |
| 270 | * (See below) |
| 271 | */ |
| 272 | oa->val_ptr = likely(oa->len) ? attr->attr_val : |
| 273 | (u8 *)&attr->attr_bytes; |
| 274 | } else { |
| 275 | struct osdv2_attributes_list_element *attr = cur_p; |
| 276 | |
| 277 | if (max_bytes < sizeof(*attr)) |
| 278 | return -1; |
| 279 | |
| 280 | oa->len = be16_to_cpu(attr->attr_bytes); |
| 281 | inc = _osd_req_alist_elem_size(or, oa->len); |
| 282 | if (inc > max_bytes) |
| 283 | return -1; |
| 284 | |
| 285 | oa->attr_page = be32_to_cpu(attr->attr_page); |
| 286 | oa->attr_id = be32_to_cpu(attr->attr_id); |
| 287 | |
Boaz Harrosh | e9da4d7 | 2009-04-19 19:17:54 +0300 | [diff] [blame] | 288 | /* OSD2: For convenience, on empty attributes, we return 8 bytes |
| 289 | * of zeros here. This keeps the same behaviour with OSD2r04, |
| 290 | * and is nice with null terminating ASCII fields. |
| 291 | * oa->val_ptr == NULL marks the end-of-list, or error. |
| 292 | */ |
| 293 | oa->val_ptr = likely(oa->len) ? attr->attr_val : attr->reserved; |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 294 | } |
| 295 | return inc; |
| 296 | } |
| 297 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 298 | static unsigned _osd_req_alist_size(struct osd_request *or, void *list_head) |
| 299 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 300 | return osd_req_is_ver1(or) ? |
| 301 | osdv1_list_size(list_head) : |
| 302 | osdv2_list_size(list_head); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 303 | } |
| 304 | |
| 305 | static unsigned _osd_req_sizeof_alist_header(struct osd_request *or) |
| 306 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 307 | return osd_req_is_ver1(or) ? |
| 308 | sizeof(struct osdv1_attributes_list_header) : |
| 309 | sizeof(struct osdv2_attributes_list_header); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | static void _osd_req_set_alist_type(struct osd_request *or, |
| 313 | void *list, int list_type) |
| 314 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 315 | if (osd_req_is_ver1(or)) { |
| 316 | struct osdv1_attributes_list_header *attr_list = list; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 317 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 318 | memset(attr_list, 0, sizeof(*attr_list)); |
| 319 | attr_list->type = list_type; |
| 320 | } else { |
| 321 | struct osdv2_attributes_list_header *attr_list = list; |
| 322 | |
| 323 | memset(attr_list, 0, sizeof(*attr_list)); |
| 324 | attr_list->type = list_type; |
| 325 | } |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 326 | } |
| 327 | |
| 328 | static bool _osd_req_is_alist_type(struct osd_request *or, |
| 329 | void *list, int list_type) |
| 330 | { |
| 331 | if (!list) |
| 332 | return false; |
| 333 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 334 | if (osd_req_is_ver1(or)) { |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 335 | struct osdv1_attributes_list_header *attr_list = list; |
| 336 | |
| 337 | return attr_list->type == list_type; |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 338 | } else { |
| 339 | struct osdv2_attributes_list_header *attr_list = list; |
| 340 | |
| 341 | return attr_list->type == list_type; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 342 | } |
| 343 | } |
| 344 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 345 | /* This is for List-objects not Attributes-Lists */ |
| 346 | static void _osd_req_encode_olist(struct osd_request *or, |
| 347 | struct osd_obj_id_list *list) |
| 348 | { |
| 349 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 350 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 351 | if (osd_req_is_ver1(or)) { |
| 352 | cdbh->v1.list_identifier = list->list_identifier; |
| 353 | cdbh->v1.start_address = list->continuation_id; |
| 354 | } else { |
| 355 | cdbh->v2.list_identifier = list->list_identifier; |
| 356 | cdbh->v2.start_address = list->continuation_id; |
| 357 | } |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 358 | } |
| 359 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 360 | static osd_cdb_offset osd_req_encode_offset(struct osd_request *or, |
| 361 | u64 offset, unsigned *padding) |
| 362 | { |
| 363 | return __osd_encode_offset(offset, padding, |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 364 | osd_req_is_ver1(or) ? |
| 365 | OSDv1_OFFSET_MIN_SHIFT : OSD_OFFSET_MIN_SHIFT, |
| 366 | OSD_OFFSET_MAX_SHIFT); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 367 | } |
| 368 | |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 369 | static struct osd_security_parameters * |
| 370 | _osd_req_sec_params(struct osd_request *or) |
| 371 | { |
| 372 | struct osd_cdb *ocdb = &or->cdb; |
| 373 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 374 | if (osd_req_is_ver1(or)) |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 375 | return (struct osd_security_parameters *)&ocdb->v1.sec_params; |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 376 | else |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 377 | return (struct osd_security_parameters *)&ocdb->v2.sec_params; |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 378 | } |
| 379 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 380 | void osd_dev_init(struct osd_dev *osdd, struct scsi_device *scsi_device) |
| 381 | { |
| 382 | memset(osdd, 0, sizeof(*osdd)); |
| 383 | osdd->scsi_device = scsi_device; |
| 384 | osdd->def_timeout = BLK_DEFAULT_SG_TIMEOUT; |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 385 | #ifdef OSD_VER1_SUPPORT |
| 386 | osdd->version = OSD_VER2; |
| 387 | #endif |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 388 | /* TODO: Allocate pools for osd_request attributes ... */ |
| 389 | } |
| 390 | EXPORT_SYMBOL(osd_dev_init); |
| 391 | |
| 392 | void osd_dev_fini(struct osd_dev *osdd) |
| 393 | { |
| 394 | /* TODO: De-allocate pools */ |
| 395 | |
| 396 | osdd->scsi_device = NULL; |
| 397 | } |
| 398 | EXPORT_SYMBOL(osd_dev_fini); |
| 399 | |
| 400 | static struct osd_request *_osd_request_alloc(gfp_t gfp) |
| 401 | { |
| 402 | struct osd_request *or; |
| 403 | |
| 404 | /* TODO: Use mempool with one saved request */ |
| 405 | or = kzalloc(sizeof(*or), gfp); |
| 406 | return or; |
| 407 | } |
| 408 | |
| 409 | static void _osd_request_free(struct osd_request *or) |
| 410 | { |
| 411 | kfree(or); |
| 412 | } |
| 413 | |
| 414 | struct osd_request *osd_start_request(struct osd_dev *dev, gfp_t gfp) |
| 415 | { |
| 416 | struct osd_request *or; |
| 417 | |
| 418 | or = _osd_request_alloc(gfp); |
| 419 | if (!or) |
| 420 | return NULL; |
| 421 | |
| 422 | or->osd_dev = dev; |
| 423 | or->alloc_flags = gfp; |
| 424 | or->timeout = dev->def_timeout; |
| 425 | or->retries = OSD_REQ_RETRIES; |
| 426 | |
| 427 | return or; |
| 428 | } |
| 429 | EXPORT_SYMBOL(osd_start_request); |
| 430 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 431 | static void _osd_free_seg(struct osd_request *or __unused, |
| 432 | struct _osd_req_data_segment *seg) |
| 433 | { |
| 434 | if (!seg->buff || !seg->alloc_size) |
| 435 | return; |
| 436 | |
| 437 | kfree(seg->buff); |
| 438 | seg->buff = NULL; |
| 439 | seg->alloc_size = 0; |
| 440 | } |
| 441 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 442 | static void _put_request(struct request *rq) |
Boaz Harrosh | 8c0bacc | 2009-03-31 20:05:29 +0300 | [diff] [blame] | 443 | { |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 444 | /* |
| 445 | * If osd_finalize_request() was called but the request was not |
| 446 | * executed through the block layer, then we must release BIOs. |
| 447 | * TODO: Keep error code in or->async_error. Need to audit all |
| 448 | * code paths. |
| 449 | */ |
| 450 | if (unlikely(rq->bio)) |
| 451 | blk_end_request(rq, -ENOMEM, blk_rq_bytes(rq)); |
| 452 | else |
| 453 | blk_put_request(rq); |
Boaz Harrosh | 8c0bacc | 2009-03-31 20:05:29 +0300 | [diff] [blame] | 454 | } |
| 455 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 456 | void osd_end_request(struct osd_request *or) |
| 457 | { |
| 458 | struct request *rq = or->request; |
| 459 | |
| 460 | if (rq) { |
| 461 | if (rq->next_rq) { |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 462 | _put_request(rq->next_rq); |
Boaz Harrosh | 8c0bacc | 2009-03-31 20:05:29 +0300 | [diff] [blame] | 463 | rq->next_rq = NULL; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 464 | } |
| 465 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 466 | _put_request(rq); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 467 | } |
Boaz Harrosh | c4df46c | 2010-10-19 14:21:34 +0200 | [diff] [blame] | 468 | |
| 469 | _osd_free_seg(or, &or->get_attr); |
| 470 | _osd_free_seg(or, &or->enc_get_attr); |
| 471 | _osd_free_seg(or, &or->set_attr); |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 472 | _osd_free_seg(or, &or->cdb_cont); |
Boaz Harrosh | c4df46c | 2010-10-19 14:21:34 +0200 | [diff] [blame] | 473 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 474 | _osd_request_free(or); |
| 475 | } |
| 476 | EXPORT_SYMBOL(osd_end_request); |
| 477 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 478 | static void _set_error_resid(struct osd_request *or, struct request *req, |
| 479 | int error) |
| 480 | { |
| 481 | or->async_error = error; |
| 482 | or->req_errors = req->errors ? : error; |
| 483 | or->sense_len = req->sense_len; |
| 484 | if (or->out.req) |
| 485 | or->out.residual = or->out.req->resid_len; |
| 486 | if (or->in.req) |
| 487 | or->in.residual = or->in.req->resid_len; |
| 488 | } |
| 489 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 490 | int osd_execute_request(struct osd_request *or) |
| 491 | { |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 492 | int error = blk_execute_rq(or->request->q, NULL, or->request, 0); |
| 493 | |
| 494 | _set_error_resid(or, or->request, error); |
| 495 | return error; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 496 | } |
| 497 | EXPORT_SYMBOL(osd_execute_request); |
| 498 | |
| 499 | static void osd_request_async_done(struct request *req, int error) |
| 500 | { |
| 501 | struct osd_request *or = req->end_io_data; |
| 502 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 503 | _set_error_resid(or, req, error); |
| 504 | if (req->next_rq) { |
| 505 | __blk_put_request(req->q, req->next_rq); |
| 506 | req->next_rq = NULL; |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 507 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 508 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 509 | __blk_put_request(req->q, req); |
| 510 | or->request = NULL; |
| 511 | or->in.req = NULL; |
| 512 | or->out.req = NULL; |
| 513 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 514 | if (or->async_done) |
| 515 | or->async_done(or, or->async_private); |
| 516 | else |
| 517 | osd_end_request(or); |
| 518 | } |
| 519 | |
| 520 | int osd_execute_request_async(struct osd_request *or, |
| 521 | osd_req_done_fn *done, void *private) |
| 522 | { |
| 523 | or->request->end_io_data = or; |
| 524 | or->async_private = private; |
| 525 | or->async_done = done; |
| 526 | |
| 527 | blk_execute_rq_nowait(or->request->q, NULL, or->request, 0, |
| 528 | osd_request_async_done); |
| 529 | return 0; |
| 530 | } |
| 531 | EXPORT_SYMBOL(osd_execute_request_async); |
| 532 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 533 | u8 sg_out_pad_buffer[1 << OSDv1_OFFSET_MIN_SHIFT]; |
| 534 | u8 sg_in_pad_buffer[1 << OSDv1_OFFSET_MIN_SHIFT]; |
| 535 | |
| 536 | static int _osd_realloc_seg(struct osd_request *or, |
| 537 | struct _osd_req_data_segment *seg, unsigned max_bytes) |
| 538 | { |
| 539 | void *buff; |
| 540 | |
| 541 | if (seg->alloc_size >= max_bytes) |
| 542 | return 0; |
| 543 | |
| 544 | buff = krealloc(seg->buff, max_bytes, or->alloc_flags); |
| 545 | if (!buff) { |
| 546 | OSD_ERR("Failed to Realloc %d-bytes was-%d\n", max_bytes, |
| 547 | seg->alloc_size); |
| 548 | return -ENOMEM; |
| 549 | } |
| 550 | |
| 551 | memset(buff + seg->alloc_size, 0, max_bytes - seg->alloc_size); |
| 552 | seg->buff = buff; |
| 553 | seg->alloc_size = max_bytes; |
| 554 | return 0; |
| 555 | } |
| 556 | |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 557 | static int _alloc_cdb_cont(struct osd_request *or, unsigned total_bytes) |
| 558 | { |
| 559 | OSD_DEBUG("total_bytes=%d\n", total_bytes); |
| 560 | return _osd_realloc_seg(or, &or->cdb_cont, total_bytes); |
| 561 | } |
| 562 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 563 | static int _alloc_set_attr_list(struct osd_request *or, |
| 564 | const struct osd_attr *oa, unsigned nelem, unsigned add_bytes) |
| 565 | { |
| 566 | unsigned total_bytes = add_bytes; |
| 567 | |
| 568 | for (; nelem; --nelem, ++oa) |
| 569 | total_bytes += _osd_req_alist_elem_size(or, oa->len); |
| 570 | |
| 571 | OSD_DEBUG("total_bytes=%d\n", total_bytes); |
| 572 | return _osd_realloc_seg(or, &or->set_attr, total_bytes); |
| 573 | } |
| 574 | |
| 575 | static int _alloc_get_attr_desc(struct osd_request *or, unsigned max_bytes) |
| 576 | { |
| 577 | OSD_DEBUG("total_bytes=%d\n", max_bytes); |
| 578 | return _osd_realloc_seg(or, &or->enc_get_attr, max_bytes); |
| 579 | } |
| 580 | |
| 581 | static int _alloc_get_attr_list(struct osd_request *or) |
| 582 | { |
| 583 | OSD_DEBUG("total_bytes=%d\n", or->get_attr.total_bytes); |
| 584 | return _osd_realloc_seg(or, &or->get_attr, or->get_attr.total_bytes); |
| 585 | } |
| 586 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 587 | /* |
| 588 | * Common to all OSD commands |
| 589 | */ |
| 590 | |
| 591 | static void _osdv1_req_encode_common(struct osd_request *or, |
| 592 | __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len) |
| 593 | { |
| 594 | struct osdv1_cdb *ocdb = &or->cdb.v1; |
| 595 | |
| 596 | /* |
| 597 | * For speed, the commands |
| 598 | * OSD_ACT_PERFORM_SCSI_COMMAND , V1 0x8F7E, V2 0x8F7C |
| 599 | * OSD_ACT_SCSI_TASK_MANAGEMENT , V1 0x8F7F, V2 0x8F7D |
| 600 | * are not supported here. Should pass zero and set after the call |
| 601 | */ |
| 602 | act &= cpu_to_be16(~0x0080); /* V1 action code */ |
| 603 | |
| 604 | OSD_DEBUG("OSDv1 execute opcode 0x%x\n", be16_to_cpu(act)); |
| 605 | |
| 606 | ocdb->h.varlen_cdb.opcode = VARIABLE_LENGTH_CMD; |
| 607 | ocdb->h.varlen_cdb.additional_cdb_length = OSD_ADDITIONAL_CDB_LENGTH; |
| 608 | ocdb->h.varlen_cdb.service_action = act; |
| 609 | |
| 610 | ocdb->h.partition = cpu_to_be64(obj->partition); |
| 611 | ocdb->h.object = cpu_to_be64(obj->id); |
| 612 | ocdb->h.v1.length = cpu_to_be64(len); |
| 613 | ocdb->h.v1.start_address = cpu_to_be64(offset); |
| 614 | } |
| 615 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 616 | static void _osdv2_req_encode_common(struct osd_request *or, |
| 617 | __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len) |
| 618 | { |
| 619 | struct osdv2_cdb *ocdb = &or->cdb.v2; |
| 620 | |
| 621 | OSD_DEBUG("OSDv2 execute opcode 0x%x\n", be16_to_cpu(act)); |
| 622 | |
| 623 | ocdb->h.varlen_cdb.opcode = VARIABLE_LENGTH_CMD; |
| 624 | ocdb->h.varlen_cdb.additional_cdb_length = OSD_ADDITIONAL_CDB_LENGTH; |
| 625 | ocdb->h.varlen_cdb.service_action = act; |
| 626 | |
| 627 | ocdb->h.partition = cpu_to_be64(obj->partition); |
| 628 | ocdb->h.object = cpu_to_be64(obj->id); |
| 629 | ocdb->h.v2.length = cpu_to_be64(len); |
| 630 | ocdb->h.v2.start_address = cpu_to_be64(offset); |
| 631 | } |
| 632 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 633 | static void _osd_req_encode_common(struct osd_request *or, |
| 634 | __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len) |
| 635 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 636 | if (osd_req_is_ver1(or)) |
| 637 | _osdv1_req_encode_common(or, act, obj, offset, len); |
| 638 | else |
| 639 | _osdv2_req_encode_common(or, act, obj, offset, len); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 640 | } |
| 641 | |
| 642 | /* |
| 643 | * Device commands |
| 644 | */ |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 645 | /*TODO: void osd_req_set_master_seed_xchg(struct osd_request *, ...); */ |
| 646 | /*TODO: void osd_req_set_master_key(struct osd_request *, ...); */ |
| 647 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 648 | void osd_req_format(struct osd_request *or, u64 tot_capacity) |
| 649 | { |
| 650 | _osd_req_encode_common(or, OSD_ACT_FORMAT_OSD, &osd_root_object, 0, |
| 651 | tot_capacity); |
| 652 | } |
| 653 | EXPORT_SYMBOL(osd_req_format); |
| 654 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 655 | int osd_req_list_dev_partitions(struct osd_request *or, |
| 656 | osd_id initial_id, struct osd_obj_id_list *list, unsigned nelem) |
| 657 | { |
| 658 | return osd_req_list_partition_objects(or, 0, initial_id, list, nelem); |
| 659 | } |
| 660 | EXPORT_SYMBOL(osd_req_list_dev_partitions); |
| 661 | |
| 662 | static void _osd_req_encode_flush(struct osd_request *or, |
| 663 | enum osd_options_flush_scope_values op) |
| 664 | { |
| 665 | struct osd_cdb_head *ocdb = osd_cdb_head(&or->cdb); |
| 666 | |
| 667 | ocdb->command_specific_options = op; |
| 668 | } |
| 669 | |
| 670 | void osd_req_flush_obsd(struct osd_request *or, |
| 671 | enum osd_options_flush_scope_values op) |
| 672 | { |
| 673 | _osd_req_encode_common(or, OSD_ACT_FLUSH_OSD, &osd_root_object, 0, 0); |
| 674 | _osd_req_encode_flush(or, op); |
| 675 | } |
| 676 | EXPORT_SYMBOL(osd_req_flush_obsd); |
| 677 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 678 | /*TODO: void osd_req_perform_scsi_command(struct osd_request *, |
| 679 | const u8 *cdb, ...); */ |
| 680 | /*TODO: void osd_req_task_management(struct osd_request *, ...); */ |
| 681 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 682 | /* |
| 683 | * Partition commands |
| 684 | */ |
| 685 | static void _osd_req_encode_partition(struct osd_request *or, |
| 686 | __be16 act, osd_id partition) |
| 687 | { |
| 688 | struct osd_obj_id par = { |
| 689 | .partition = partition, |
| 690 | .id = 0, |
| 691 | }; |
| 692 | |
| 693 | _osd_req_encode_common(or, act, &par, 0, 0); |
| 694 | } |
| 695 | |
| 696 | void osd_req_create_partition(struct osd_request *or, osd_id partition) |
| 697 | { |
| 698 | _osd_req_encode_partition(or, OSD_ACT_CREATE_PARTITION, partition); |
| 699 | } |
| 700 | EXPORT_SYMBOL(osd_req_create_partition); |
| 701 | |
| 702 | void osd_req_remove_partition(struct osd_request *or, osd_id partition) |
| 703 | { |
| 704 | _osd_req_encode_partition(or, OSD_ACT_REMOVE_PARTITION, partition); |
| 705 | } |
| 706 | EXPORT_SYMBOL(osd_req_remove_partition); |
| 707 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 708 | /*TODO: void osd_req_set_partition_key(struct osd_request *, |
| 709 | osd_id partition, u8 new_key_id[OSD_CRYPTO_KEYID_SIZE], |
| 710 | u8 seed[OSD_CRYPTO_SEED_SIZE]); */ |
| 711 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 712 | static int _osd_req_list_objects(struct osd_request *or, |
| 713 | __be16 action, const struct osd_obj_id *obj, osd_id initial_id, |
| 714 | struct osd_obj_id_list *list, unsigned nelem) |
| 715 | { |
Boaz Harrosh | fc2fac5 | 2009-05-24 20:04:43 +0300 | [diff] [blame] | 716 | struct request_queue *q = osd_request_queue(or->osd_dev); |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 717 | u64 len = nelem * sizeof(osd_id) + sizeof(*list); |
| 718 | struct bio *bio; |
| 719 | |
| 720 | _osd_req_encode_common(or, action, obj, (u64)initial_id, len); |
| 721 | |
| 722 | if (list->list_identifier) |
| 723 | _osd_req_encode_olist(or, list); |
| 724 | |
| 725 | WARN_ON(or->in.bio); |
| 726 | bio = bio_map_kern(q, list, len, or->alloc_flags); |
Dan Carpenter | bf5e84f | 2009-04-19 19:07:47 +0300 | [diff] [blame] | 727 | if (IS_ERR(bio)) { |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 728 | OSD_ERR("!!! Failed to allocate list_objects BIO\n"); |
Dan Carpenter | bf5e84f | 2009-04-19 19:07:47 +0300 | [diff] [blame] | 729 | return PTR_ERR(bio); |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 730 | } |
| 731 | |
Christoph Hellwig | 7b6d91d | 2010-08-07 18:20:39 +0200 | [diff] [blame] | 732 | bio->bi_rw &= ~REQ_WRITE; |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 733 | or->in.bio = bio; |
Kent Overstreet | 4f024f3 | 2013-10-11 15:44:27 -0700 | [diff] [blame] | 734 | or->in.total_bytes = bio->bi_iter.bi_size; |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 735 | return 0; |
| 736 | } |
| 737 | |
| 738 | int osd_req_list_partition_collections(struct osd_request *or, |
| 739 | osd_id partition, osd_id initial_id, struct osd_obj_id_list *list, |
| 740 | unsigned nelem) |
| 741 | { |
| 742 | struct osd_obj_id par = { |
| 743 | .partition = partition, |
| 744 | .id = 0, |
| 745 | }; |
| 746 | |
| 747 | return osd_req_list_collection_objects(or, &par, initial_id, list, |
| 748 | nelem); |
| 749 | } |
| 750 | EXPORT_SYMBOL(osd_req_list_partition_collections); |
| 751 | |
| 752 | int osd_req_list_partition_objects(struct osd_request *or, |
| 753 | osd_id partition, osd_id initial_id, struct osd_obj_id_list *list, |
| 754 | unsigned nelem) |
| 755 | { |
| 756 | struct osd_obj_id par = { |
| 757 | .partition = partition, |
| 758 | .id = 0, |
| 759 | }; |
| 760 | |
| 761 | return _osd_req_list_objects(or, OSD_ACT_LIST, &par, initial_id, list, |
| 762 | nelem); |
| 763 | } |
| 764 | EXPORT_SYMBOL(osd_req_list_partition_objects); |
| 765 | |
| 766 | void osd_req_flush_partition(struct osd_request *or, |
| 767 | osd_id partition, enum osd_options_flush_scope_values op) |
| 768 | { |
| 769 | _osd_req_encode_partition(or, OSD_ACT_FLUSH_PARTITION, partition); |
| 770 | _osd_req_encode_flush(or, op); |
| 771 | } |
| 772 | EXPORT_SYMBOL(osd_req_flush_partition); |
| 773 | |
| 774 | /* |
| 775 | * Collection commands |
| 776 | */ |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 777 | /*TODO: void osd_req_create_collection(struct osd_request *, |
| 778 | const struct osd_obj_id *); */ |
| 779 | /*TODO: void osd_req_remove_collection(struct osd_request *, |
| 780 | const struct osd_obj_id *); */ |
| 781 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 782 | int osd_req_list_collection_objects(struct osd_request *or, |
| 783 | const struct osd_obj_id *obj, osd_id initial_id, |
| 784 | struct osd_obj_id_list *list, unsigned nelem) |
| 785 | { |
| 786 | return _osd_req_list_objects(or, OSD_ACT_LIST_COLLECTION, obj, |
| 787 | initial_id, list, nelem); |
| 788 | } |
| 789 | EXPORT_SYMBOL(osd_req_list_collection_objects); |
| 790 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 791 | /*TODO: void query(struct osd_request *, ...); V2 */ |
| 792 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 793 | void osd_req_flush_collection(struct osd_request *or, |
| 794 | const struct osd_obj_id *obj, enum osd_options_flush_scope_values op) |
| 795 | { |
| 796 | _osd_req_encode_common(or, OSD_ACT_FLUSH_PARTITION, obj, 0, 0); |
| 797 | _osd_req_encode_flush(or, op); |
| 798 | } |
| 799 | EXPORT_SYMBOL(osd_req_flush_collection); |
| 800 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 801 | /*TODO: void get_member_attrs(struct osd_request *, ...); V2 */ |
| 802 | /*TODO: void set_member_attrs(struct osd_request *, ...); V2 */ |
| 803 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 804 | /* |
| 805 | * Object commands |
| 806 | */ |
| 807 | void osd_req_create_object(struct osd_request *or, struct osd_obj_id *obj) |
| 808 | { |
| 809 | _osd_req_encode_common(or, OSD_ACT_CREATE, obj, 0, 0); |
| 810 | } |
| 811 | EXPORT_SYMBOL(osd_req_create_object); |
| 812 | |
| 813 | void osd_req_remove_object(struct osd_request *or, struct osd_obj_id *obj) |
| 814 | { |
| 815 | _osd_req_encode_common(or, OSD_ACT_REMOVE, obj, 0, 0); |
| 816 | } |
| 817 | EXPORT_SYMBOL(osd_req_remove_object); |
| 818 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 819 | |
| 820 | /*TODO: void osd_req_create_multi(struct osd_request *or, |
| 821 | struct osd_obj_id *first, struct osd_obj_id_list *list, unsigned nelem); |
| 822 | */ |
| 823 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 824 | void osd_req_write(struct osd_request *or, |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 825 | const struct osd_obj_id *obj, u64 offset, |
| 826 | struct bio *bio, u64 len) |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 827 | { |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 828 | _osd_req_encode_common(or, OSD_ACT_WRITE, obj, offset, len); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 829 | WARN_ON(or->out.bio || or->out.total_bytes); |
Christoph Hellwig | 7b6d91d | 2010-08-07 18:20:39 +0200 | [diff] [blame] | 830 | WARN_ON(0 == (bio->bi_rw & REQ_WRITE)); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 831 | or->out.bio = bio; |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 832 | or->out.total_bytes = len; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 833 | } |
| 834 | EXPORT_SYMBOL(osd_req_write); |
| 835 | |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 836 | int osd_req_write_kern(struct osd_request *or, |
| 837 | const struct osd_obj_id *obj, u64 offset, void* buff, u64 len) |
| 838 | { |
Boaz Harrosh | fc2fac5 | 2009-05-24 20:04:43 +0300 | [diff] [blame] | 839 | struct request_queue *req_q = osd_request_queue(or->osd_dev); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 840 | struct bio *bio = bio_map_kern(req_q, buff, len, GFP_KERNEL); |
| 841 | |
| 842 | if (IS_ERR(bio)) |
| 843 | return PTR_ERR(bio); |
| 844 | |
Christoph Hellwig | 7b6d91d | 2010-08-07 18:20:39 +0200 | [diff] [blame] | 845 | bio->bi_rw |= REQ_WRITE; /* FIXME: bio_set_dir() */ |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 846 | osd_req_write(or, obj, offset, bio, len); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 847 | return 0; |
| 848 | } |
| 849 | EXPORT_SYMBOL(osd_req_write_kern); |
| 850 | |
Boaz Harrosh | ae30c99 | 2009-01-25 17:07:14 +0200 | [diff] [blame] | 851 | /*TODO: void osd_req_append(struct osd_request *, |
| 852 | const struct osd_obj_id *, struct bio *data_out); */ |
| 853 | /*TODO: void osd_req_create_write(struct osd_request *, |
| 854 | const struct osd_obj_id *, struct bio *data_out, u64 offset); */ |
| 855 | /*TODO: void osd_req_clear(struct osd_request *, |
| 856 | const struct osd_obj_id *, u64 offset, u64 len); */ |
| 857 | /*TODO: void osd_req_punch(struct osd_request *, |
| 858 | const struct osd_obj_id *, u64 offset, u64 len); V2 */ |
| 859 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 860 | void osd_req_flush_object(struct osd_request *or, |
| 861 | const struct osd_obj_id *obj, enum osd_options_flush_scope_values op, |
| 862 | /*V2*/ u64 offset, /*V2*/ u64 len) |
| 863 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 864 | if (unlikely(osd_req_is_ver1(or) && (offset || len))) { |
| 865 | OSD_DEBUG("OSD Ver1 flush on specific range ignored\n"); |
| 866 | offset = 0; |
| 867 | len = 0; |
| 868 | } |
| 869 | |
Boaz Harrosh | 3e08613 | 2009-01-25 17:05:07 +0200 | [diff] [blame] | 870 | _osd_req_encode_common(or, OSD_ACT_FLUSH, obj, offset, len); |
| 871 | _osd_req_encode_flush(or, op); |
| 872 | } |
| 873 | EXPORT_SYMBOL(osd_req_flush_object); |
| 874 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 875 | void osd_req_read(struct osd_request *or, |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 876 | const struct osd_obj_id *obj, u64 offset, |
| 877 | struct bio *bio, u64 len) |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 878 | { |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 879 | _osd_req_encode_common(or, OSD_ACT_READ, obj, offset, len); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 880 | WARN_ON(or->in.bio || or->in.total_bytes); |
Jiri Slaby | d842a93 | 2010-08-12 14:31:05 +0200 | [diff] [blame] | 881 | WARN_ON(bio->bi_rw & REQ_WRITE); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 882 | or->in.bio = bio; |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 883 | or->in.total_bytes = len; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 884 | } |
| 885 | EXPORT_SYMBOL(osd_req_read); |
| 886 | |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 887 | int osd_req_read_kern(struct osd_request *or, |
| 888 | const struct osd_obj_id *obj, u64 offset, void* buff, u64 len) |
| 889 | { |
Boaz Harrosh | fc2fac5 | 2009-05-24 20:04:43 +0300 | [diff] [blame] | 890 | struct request_queue *req_q = osd_request_queue(or->osd_dev); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 891 | struct bio *bio = bio_map_kern(req_q, buff, len, GFP_KERNEL); |
| 892 | |
| 893 | if (IS_ERR(bio)) |
| 894 | return PTR_ERR(bio); |
| 895 | |
Boaz Harrosh | 62f469b | 2009-05-24 20:04:26 +0300 | [diff] [blame] | 896 | osd_req_read(or, obj, offset, bio, len); |
Boaz Harrosh | 0e35afb | 2009-05-24 20:02:22 +0300 | [diff] [blame] | 897 | return 0; |
| 898 | } |
| 899 | EXPORT_SYMBOL(osd_req_read_kern); |
| 900 | |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 901 | static int _add_sg_continuation_descriptor(struct osd_request *or, |
| 902 | const struct osd_sg_entry *sglist, unsigned numentries, u64 *len) |
| 903 | { |
| 904 | struct osd_sg_continuation_descriptor *oscd; |
| 905 | u32 oscd_size; |
| 906 | unsigned i; |
| 907 | int ret; |
| 908 | |
| 909 | oscd_size = sizeof(*oscd) + numentries * sizeof(oscd->entries[0]); |
| 910 | |
| 911 | if (!or->cdb_cont.total_bytes) { |
| 912 | /* First time, jump over the header, we will write to: |
| 913 | * cdb_cont.buff + cdb_cont.total_bytes |
| 914 | */ |
| 915 | or->cdb_cont.total_bytes = |
| 916 | sizeof(struct osd_continuation_segment_header); |
| 917 | } |
| 918 | |
| 919 | ret = _alloc_cdb_cont(or, or->cdb_cont.total_bytes + oscd_size); |
| 920 | if (unlikely(ret)) |
| 921 | return ret; |
| 922 | |
| 923 | oscd = or->cdb_cont.buff + or->cdb_cont.total_bytes; |
| 924 | oscd->hdr.type = cpu_to_be16(SCATTER_GATHER_LIST); |
| 925 | oscd->hdr.pad_length = 0; |
| 926 | oscd->hdr.length = cpu_to_be32(oscd_size - sizeof(*oscd)); |
| 927 | |
| 928 | *len = 0; |
| 929 | /* copy the sg entries and convert to network byte order */ |
| 930 | for (i = 0; i < numentries; i++) { |
| 931 | oscd->entries[i].offset = cpu_to_be64(sglist[i].offset); |
| 932 | oscd->entries[i].len = cpu_to_be64(sglist[i].len); |
| 933 | *len += sglist[i].len; |
| 934 | } |
| 935 | |
| 936 | or->cdb_cont.total_bytes += oscd_size; |
| 937 | OSD_DEBUG("total_bytes=%d oscd_size=%d numentries=%d\n", |
| 938 | or->cdb_cont.total_bytes, oscd_size, numentries); |
| 939 | return 0; |
| 940 | } |
| 941 | |
| 942 | static int _osd_req_finalize_cdb_cont(struct osd_request *or, const u8 *cap_key) |
| 943 | { |
| 944 | struct request_queue *req_q = osd_request_queue(or->osd_dev); |
| 945 | struct bio *bio; |
| 946 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 947 | struct osd_continuation_segment_header *cont_seg_hdr; |
| 948 | |
| 949 | if (!or->cdb_cont.total_bytes) |
| 950 | return 0; |
| 951 | |
| 952 | cont_seg_hdr = or->cdb_cont.buff; |
| 953 | cont_seg_hdr->format = CDB_CONTINUATION_FORMAT_V2; |
| 954 | cont_seg_hdr->service_action = cdbh->varlen_cdb.service_action; |
| 955 | |
| 956 | /* create a bio for continuation segment */ |
| 957 | bio = bio_map_kern(req_q, or->cdb_cont.buff, or->cdb_cont.total_bytes, |
| 958 | GFP_KERNEL); |
Dan Carpenter | 057f02a | 2010-11-12 07:31:46 +0300 | [diff] [blame] | 959 | if (IS_ERR(bio)) |
| 960 | return PTR_ERR(bio); |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 961 | |
| 962 | bio->bi_rw |= REQ_WRITE; |
| 963 | |
| 964 | /* integrity check the continuation before the bio is linked |
| 965 | * with the other data segments since the continuation |
| 966 | * integrity is separate from the other data segments. |
| 967 | */ |
| 968 | osd_sec_sign_data(cont_seg_hdr->integrity_check, bio, cap_key); |
| 969 | |
| 970 | cdbh->v2.cdb_continuation_length = cpu_to_be32(or->cdb_cont.total_bytes); |
| 971 | |
| 972 | /* we can't use _req_append_segment, because we need to link in the |
| 973 | * continuation bio to the head of the bio list - the |
| 974 | * continuation segment (if it exists) is always the first segment in |
| 975 | * the out data buffer. |
| 976 | */ |
| 977 | bio->bi_next = or->out.bio; |
| 978 | or->out.bio = bio; |
| 979 | or->out.total_bytes += or->cdb_cont.total_bytes; |
| 980 | |
| 981 | return 0; |
| 982 | } |
| 983 | |
| 984 | /* osd_req_write_sg: Takes a @bio that points to the data out buffer and an |
| 985 | * @sglist that has the scatter gather entries. Scatter-gather enables a write |
| 986 | * of multiple none-contiguous areas of an object, in a single call. The extents |
| 987 | * may overlap and/or be in any order. The only constrain is that: |
| 988 | * total_bytes(sglist) >= total_bytes(bio) |
| 989 | */ |
| 990 | int osd_req_write_sg(struct osd_request *or, |
| 991 | const struct osd_obj_id *obj, struct bio *bio, |
| 992 | const struct osd_sg_entry *sglist, unsigned numentries) |
| 993 | { |
| 994 | u64 len; |
| 995 | int ret = _add_sg_continuation_descriptor(or, sglist, numentries, &len); |
| 996 | |
| 997 | if (ret) |
| 998 | return ret; |
| 999 | osd_req_write(or, obj, 0, bio, len); |
| 1000 | |
| 1001 | return 0; |
| 1002 | } |
| 1003 | EXPORT_SYMBOL(osd_req_write_sg); |
| 1004 | |
| 1005 | /* osd_req_read_sg: Read multiple extents of an object into @bio |
| 1006 | * See osd_req_write_sg |
| 1007 | */ |
| 1008 | int osd_req_read_sg(struct osd_request *or, |
| 1009 | const struct osd_obj_id *obj, struct bio *bio, |
| 1010 | const struct osd_sg_entry *sglist, unsigned numentries) |
| 1011 | { |
| 1012 | u64 len; |
Boaz Harrosh | 4977c82 | 2011-01-23 17:53:24 +0200 | [diff] [blame] | 1013 | u64 off; |
| 1014 | int ret; |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1015 | |
Boaz Harrosh | 4977c82 | 2011-01-23 17:53:24 +0200 | [diff] [blame] | 1016 | if (numentries > 1) { |
| 1017 | off = 0; |
| 1018 | ret = _add_sg_continuation_descriptor(or, sglist, numentries, |
| 1019 | &len); |
| 1020 | if (ret) |
| 1021 | return ret; |
| 1022 | } else { |
| 1023 | /* Optimize the case of single segment, read_sg is a |
| 1024 | * bidi operation. |
| 1025 | */ |
| 1026 | len = sglist->len; |
| 1027 | off = sglist->offset; |
| 1028 | } |
| 1029 | osd_req_read(or, obj, off, bio, len); |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1030 | |
| 1031 | return 0; |
| 1032 | } |
| 1033 | EXPORT_SYMBOL(osd_req_read_sg); |
| 1034 | |
Boaz Harrosh | 6dd1d8a | 2010-10-19 16:13:50 +0200 | [diff] [blame] | 1035 | /* SG-list write/read Kern API |
| 1036 | * |
| 1037 | * osd_req_{write,read}_sg_kern takes an array of @buff pointers and an array |
| 1038 | * of sg_entries. @numentries indicates how many pointers and sg_entries there |
| 1039 | * are. By requiring an array of buff pointers. This allows a caller to do a |
| 1040 | * single write/read and scatter into multiple buffers. |
| 1041 | * NOTE: Each buffer + len should not cross a page boundary. |
| 1042 | */ |
| 1043 | static struct bio *_create_sg_bios(struct osd_request *or, |
| 1044 | void **buff, const struct osd_sg_entry *sglist, unsigned numentries) |
| 1045 | { |
| 1046 | struct request_queue *q = osd_request_queue(or->osd_dev); |
| 1047 | struct bio *bio; |
| 1048 | unsigned i; |
| 1049 | |
| 1050 | bio = bio_kmalloc(GFP_KERNEL, numentries); |
| 1051 | if (unlikely(!bio)) { |
Masanari Iida | 1051e9b | 2013-03-31 01:23:50 +0900 | [diff] [blame] | 1052 | OSD_DEBUG("Failed to allocate BIO size=%u\n", numentries); |
Boaz Harrosh | 6dd1d8a | 2010-10-19 16:13:50 +0200 | [diff] [blame] | 1053 | return ERR_PTR(-ENOMEM); |
| 1054 | } |
| 1055 | |
| 1056 | for (i = 0; i < numentries; i++) { |
| 1057 | unsigned offset = offset_in_page(buff[i]); |
| 1058 | struct page *page = virt_to_page(buff[i]); |
| 1059 | unsigned len = sglist[i].len; |
| 1060 | unsigned added_len; |
| 1061 | |
| 1062 | BUG_ON(offset + len > PAGE_SIZE); |
| 1063 | added_len = bio_add_pc_page(q, bio, page, len, offset); |
| 1064 | if (unlikely(len != added_len)) { |
| 1065 | OSD_DEBUG("bio_add_pc_page len(%d) != added_len(%d)\n", |
| 1066 | len, added_len); |
| 1067 | bio_put(bio); |
| 1068 | return ERR_PTR(-ENOMEM); |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | return bio; |
| 1073 | } |
| 1074 | |
| 1075 | int osd_req_write_sg_kern(struct osd_request *or, |
| 1076 | const struct osd_obj_id *obj, void **buff, |
| 1077 | const struct osd_sg_entry *sglist, unsigned numentries) |
| 1078 | { |
| 1079 | struct bio *bio = _create_sg_bios(or, buff, sglist, numentries); |
| 1080 | if (IS_ERR(bio)) |
| 1081 | return PTR_ERR(bio); |
| 1082 | |
| 1083 | bio->bi_rw |= REQ_WRITE; |
| 1084 | osd_req_write_sg(or, obj, bio, sglist, numentries); |
| 1085 | |
| 1086 | return 0; |
| 1087 | } |
| 1088 | EXPORT_SYMBOL(osd_req_write_sg_kern); |
| 1089 | |
| 1090 | int osd_req_read_sg_kern(struct osd_request *or, |
| 1091 | const struct osd_obj_id *obj, void **buff, |
| 1092 | const struct osd_sg_entry *sglist, unsigned numentries) |
| 1093 | { |
| 1094 | struct bio *bio = _create_sg_bios(or, buff, sglist, numentries); |
| 1095 | if (IS_ERR(bio)) |
| 1096 | return PTR_ERR(bio); |
| 1097 | |
| 1098 | osd_req_read_sg(or, obj, bio, sglist, numentries); |
| 1099 | |
| 1100 | return 0; |
| 1101 | } |
| 1102 | EXPORT_SYMBOL(osd_req_read_sg_kern); |
| 1103 | |
| 1104 | |
| 1105 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1106 | void osd_req_get_attributes(struct osd_request *or, |
| 1107 | const struct osd_obj_id *obj) |
| 1108 | { |
| 1109 | _osd_req_encode_common(or, OSD_ACT_GET_ATTRIBUTES, obj, 0, 0); |
| 1110 | } |
| 1111 | EXPORT_SYMBOL(osd_req_get_attributes); |
| 1112 | |
| 1113 | void osd_req_set_attributes(struct osd_request *or, |
| 1114 | const struct osd_obj_id *obj) |
| 1115 | { |
| 1116 | _osd_req_encode_common(or, OSD_ACT_SET_ATTRIBUTES, obj, 0, 0); |
| 1117 | } |
| 1118 | EXPORT_SYMBOL(osd_req_set_attributes); |
| 1119 | |
| 1120 | /* |
| 1121 | * Attributes List-mode |
| 1122 | */ |
| 1123 | |
| 1124 | int osd_req_add_set_attr_list(struct osd_request *or, |
| 1125 | const struct osd_attr *oa, unsigned nelem) |
| 1126 | { |
| 1127 | unsigned total_bytes = or->set_attr.total_bytes; |
| 1128 | void *attr_last; |
| 1129 | int ret; |
| 1130 | |
| 1131 | if (or->attributes_mode && |
| 1132 | or->attributes_mode != OSD_CDB_GET_SET_ATTR_LISTS) { |
| 1133 | WARN_ON(1); |
| 1134 | return -EINVAL; |
| 1135 | } |
| 1136 | or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS; |
| 1137 | |
| 1138 | if (!total_bytes) { /* first-time: allocate and put list header */ |
| 1139 | total_bytes = _osd_req_sizeof_alist_header(or); |
| 1140 | ret = _alloc_set_attr_list(or, oa, nelem, total_bytes); |
| 1141 | if (ret) |
| 1142 | return ret; |
| 1143 | _osd_req_set_alist_type(or, or->set_attr.buff, |
| 1144 | OSD_ATTR_LIST_SET_RETRIEVE); |
| 1145 | } |
| 1146 | attr_last = or->set_attr.buff + total_bytes; |
| 1147 | |
| 1148 | for (; nelem; --nelem) { |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1149 | unsigned elem_size = _osd_req_alist_elem_size(or, oa->len); |
| 1150 | |
| 1151 | total_bytes += elem_size; |
| 1152 | if (unlikely(or->set_attr.alloc_size < total_bytes)) { |
| 1153 | or->set_attr.total_bytes = total_bytes - elem_size; |
| 1154 | ret = _alloc_set_attr_list(or, oa, nelem, total_bytes); |
| 1155 | if (ret) |
| 1156 | return ret; |
| 1157 | attr_last = |
| 1158 | or->set_attr.buff + or->set_attr.total_bytes; |
| 1159 | } |
| 1160 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 1161 | _osd_req_alist_elem_encode(or, attr_last, oa); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1162 | |
| 1163 | attr_last += elem_size; |
| 1164 | ++oa; |
| 1165 | } |
| 1166 | |
| 1167 | or->set_attr.total_bytes = total_bytes; |
| 1168 | return 0; |
| 1169 | } |
| 1170 | EXPORT_SYMBOL(osd_req_add_set_attr_list); |
| 1171 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1172 | static int _req_append_segment(struct osd_request *or, |
| 1173 | unsigned padding, struct _osd_req_data_segment *seg, |
| 1174 | struct _osd_req_data_segment *last_seg, struct _osd_io_info *io) |
| 1175 | { |
| 1176 | void *pad_buff; |
| 1177 | int ret; |
| 1178 | |
| 1179 | if (padding) { |
| 1180 | /* check if we can just add it to last buffer */ |
| 1181 | if (last_seg && |
| 1182 | (padding <= last_seg->alloc_size - last_seg->total_bytes)) |
| 1183 | pad_buff = last_seg->buff + last_seg->total_bytes; |
| 1184 | else |
| 1185 | pad_buff = io->pad_buff; |
| 1186 | |
Boaz Harrosh | bc38bf1 | 2009-05-17 18:56:17 +0300 | [diff] [blame] | 1187 | 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] | 1188 | or->alloc_flags); |
| 1189 | if (ret) |
| 1190 | return ret; |
| 1191 | io->total_bytes += padding; |
| 1192 | } |
| 1193 | |
Boaz Harrosh | bc38bf1 | 2009-05-17 18:56:17 +0300 | [diff] [blame] | 1194 | 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] | 1195 | or->alloc_flags); |
| 1196 | if (ret) |
| 1197 | return ret; |
| 1198 | |
| 1199 | io->total_bytes += seg->total_bytes; |
| 1200 | OSD_DEBUG("padding=%d buff=%p total_bytes=%d\n", padding, seg->buff, |
| 1201 | seg->total_bytes); |
| 1202 | return 0; |
| 1203 | } |
| 1204 | |
| 1205 | static int _osd_req_finalize_set_attr_list(struct osd_request *or) |
| 1206 | { |
| 1207 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1208 | unsigned padding; |
| 1209 | int ret; |
| 1210 | |
| 1211 | if (!or->set_attr.total_bytes) { |
| 1212 | cdbh->attrs_list.set_attr_offset = OSD_OFFSET_UNUSED; |
| 1213 | return 0; |
| 1214 | } |
| 1215 | |
| 1216 | cdbh->attrs_list.set_attr_bytes = cpu_to_be32(or->set_attr.total_bytes); |
| 1217 | cdbh->attrs_list.set_attr_offset = |
| 1218 | osd_req_encode_offset(or, or->out.total_bytes, &padding); |
| 1219 | |
| 1220 | ret = _req_append_segment(or, padding, &or->set_attr, |
| 1221 | or->out.last_seg, &or->out); |
| 1222 | if (ret) |
| 1223 | return ret; |
| 1224 | |
| 1225 | or->out.last_seg = &or->set_attr; |
| 1226 | return 0; |
| 1227 | } |
| 1228 | |
| 1229 | int osd_req_add_get_attr_list(struct osd_request *or, |
| 1230 | const struct osd_attr *oa, unsigned nelem) |
| 1231 | { |
| 1232 | unsigned total_bytes = or->enc_get_attr.total_bytes; |
| 1233 | void *attr_last; |
| 1234 | int ret; |
| 1235 | |
| 1236 | if (or->attributes_mode && |
| 1237 | or->attributes_mode != OSD_CDB_GET_SET_ATTR_LISTS) { |
| 1238 | WARN_ON(1); |
| 1239 | return -EINVAL; |
| 1240 | } |
| 1241 | or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS; |
| 1242 | |
| 1243 | /* first time calc data-in list header size */ |
| 1244 | if (!or->get_attr.total_bytes) |
| 1245 | or->get_attr.total_bytes = _osd_req_sizeof_alist_header(or); |
| 1246 | |
| 1247 | /* calc data-out info */ |
| 1248 | if (!total_bytes) { /* first-time: allocate and put list header */ |
| 1249 | unsigned max_bytes; |
| 1250 | |
| 1251 | total_bytes = _osd_req_sizeof_alist_header(or); |
| 1252 | max_bytes = total_bytes + |
| 1253 | nelem * sizeof(struct osd_attributes_list_attrid); |
| 1254 | ret = _alloc_get_attr_desc(or, max_bytes); |
| 1255 | if (ret) |
| 1256 | return ret; |
| 1257 | |
| 1258 | _osd_req_set_alist_type(or, or->enc_get_attr.buff, |
| 1259 | OSD_ATTR_LIST_GET); |
| 1260 | } |
| 1261 | attr_last = or->enc_get_attr.buff + total_bytes; |
| 1262 | |
| 1263 | for (; nelem; --nelem) { |
| 1264 | struct osd_attributes_list_attrid *attrid; |
| 1265 | const unsigned cur_size = sizeof(*attrid); |
| 1266 | |
| 1267 | total_bytes += cur_size; |
| 1268 | if (unlikely(or->enc_get_attr.alloc_size < total_bytes)) { |
| 1269 | or->enc_get_attr.total_bytes = total_bytes - cur_size; |
| 1270 | ret = _alloc_get_attr_desc(or, |
| 1271 | total_bytes + nelem * sizeof(*attrid)); |
| 1272 | if (ret) |
| 1273 | return ret; |
| 1274 | attr_last = or->enc_get_attr.buff + |
| 1275 | or->enc_get_attr.total_bytes; |
| 1276 | } |
| 1277 | |
| 1278 | attrid = attr_last; |
| 1279 | attrid->attr_page = cpu_to_be32(oa->attr_page); |
| 1280 | attrid->attr_id = cpu_to_be32(oa->attr_id); |
| 1281 | |
| 1282 | attr_last += cur_size; |
| 1283 | |
| 1284 | /* calc data-in size */ |
| 1285 | or->get_attr.total_bytes += |
| 1286 | _osd_req_alist_elem_size(or, oa->len); |
| 1287 | ++oa; |
| 1288 | } |
| 1289 | |
| 1290 | or->enc_get_attr.total_bytes = total_bytes; |
| 1291 | |
| 1292 | OSD_DEBUG( |
| 1293 | "get_attr.total_bytes=%u(%u) enc_get_attr.total_bytes=%u(%Zu)\n", |
| 1294 | or->get_attr.total_bytes, |
| 1295 | or->get_attr.total_bytes - _osd_req_sizeof_alist_header(or), |
| 1296 | or->enc_get_attr.total_bytes, |
| 1297 | (or->enc_get_attr.total_bytes - _osd_req_sizeof_alist_header(or)) |
| 1298 | / sizeof(struct osd_attributes_list_attrid)); |
| 1299 | |
| 1300 | return 0; |
| 1301 | } |
| 1302 | EXPORT_SYMBOL(osd_req_add_get_attr_list); |
| 1303 | |
| 1304 | static int _osd_req_finalize_get_attr_list(struct osd_request *or) |
| 1305 | { |
| 1306 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1307 | unsigned out_padding; |
| 1308 | unsigned in_padding; |
| 1309 | int ret; |
| 1310 | |
| 1311 | if (!or->enc_get_attr.total_bytes) { |
| 1312 | cdbh->attrs_list.get_attr_desc_offset = OSD_OFFSET_UNUSED; |
| 1313 | cdbh->attrs_list.get_attr_offset = OSD_OFFSET_UNUSED; |
| 1314 | return 0; |
| 1315 | } |
| 1316 | |
| 1317 | ret = _alloc_get_attr_list(or); |
| 1318 | if (ret) |
| 1319 | return ret; |
| 1320 | |
| 1321 | /* The out-going buffer info update */ |
| 1322 | OSD_DEBUG("out-going\n"); |
| 1323 | cdbh->attrs_list.get_attr_desc_bytes = |
| 1324 | cpu_to_be32(or->enc_get_attr.total_bytes); |
| 1325 | |
| 1326 | cdbh->attrs_list.get_attr_desc_offset = |
| 1327 | osd_req_encode_offset(or, or->out.total_bytes, &out_padding); |
| 1328 | |
| 1329 | ret = _req_append_segment(or, out_padding, &or->enc_get_attr, |
| 1330 | or->out.last_seg, &or->out); |
| 1331 | if (ret) |
| 1332 | return ret; |
| 1333 | or->out.last_seg = &or->enc_get_attr; |
| 1334 | |
| 1335 | /* The incoming buffer info update */ |
| 1336 | OSD_DEBUG("in-coming\n"); |
| 1337 | cdbh->attrs_list.get_attr_alloc_length = |
| 1338 | cpu_to_be32(or->get_attr.total_bytes); |
| 1339 | |
| 1340 | cdbh->attrs_list.get_attr_offset = |
| 1341 | osd_req_encode_offset(or, or->in.total_bytes, &in_padding); |
| 1342 | |
| 1343 | ret = _req_append_segment(or, in_padding, &or->get_attr, NULL, |
| 1344 | &or->in); |
| 1345 | if (ret) |
| 1346 | return ret; |
| 1347 | or->in.last_seg = &or->get_attr; |
| 1348 | |
| 1349 | return 0; |
| 1350 | } |
| 1351 | |
| 1352 | int osd_req_decode_get_attr_list(struct osd_request *or, |
| 1353 | struct osd_attr *oa, int *nelem, void **iterator) |
| 1354 | { |
| 1355 | unsigned cur_bytes, returned_bytes; |
| 1356 | int n; |
| 1357 | const unsigned sizeof_attr_list = _osd_req_sizeof_alist_header(or); |
| 1358 | void *cur_p; |
| 1359 | |
| 1360 | if (!_osd_req_is_alist_type(or, or->get_attr.buff, |
| 1361 | OSD_ATTR_LIST_SET_RETRIEVE)) { |
| 1362 | oa->attr_page = 0; |
| 1363 | oa->attr_id = 0; |
| 1364 | oa->val_ptr = NULL; |
| 1365 | oa->len = 0; |
| 1366 | *iterator = NULL; |
| 1367 | return 0; |
| 1368 | } |
| 1369 | |
| 1370 | if (*iterator) { |
| 1371 | BUG_ON((*iterator < or->get_attr.buff) || |
| 1372 | (or->get_attr.buff + or->get_attr.alloc_size < *iterator)); |
| 1373 | cur_p = *iterator; |
| 1374 | cur_bytes = (*iterator - or->get_attr.buff) - sizeof_attr_list; |
| 1375 | returned_bytes = or->get_attr.total_bytes; |
| 1376 | } else { /* first time decode the list header */ |
| 1377 | cur_bytes = sizeof_attr_list; |
| 1378 | returned_bytes = _osd_req_alist_size(or, or->get_attr.buff) + |
| 1379 | sizeof_attr_list; |
| 1380 | |
| 1381 | cur_p = or->get_attr.buff + sizeof_attr_list; |
| 1382 | |
| 1383 | if (returned_bytes > or->get_attr.alloc_size) { |
| 1384 | OSD_DEBUG("target report: space was not big enough! " |
| 1385 | "Allocate=%u Needed=%u\n", |
| 1386 | or->get_attr.alloc_size, |
| 1387 | returned_bytes + sizeof_attr_list); |
| 1388 | |
| 1389 | returned_bytes = |
| 1390 | or->get_attr.alloc_size - sizeof_attr_list; |
| 1391 | } |
| 1392 | or->get_attr.total_bytes = returned_bytes; |
| 1393 | } |
| 1394 | |
| 1395 | for (n = 0; (n < *nelem) && (cur_bytes < returned_bytes); ++n) { |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 1396 | int inc = _osd_req_alist_elem_decode(or, cur_p, oa, |
| 1397 | returned_bytes - cur_bytes); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1398 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 1399 | if (inc < 0) { |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1400 | OSD_ERR("BAD FOOD from target. list not valid!" |
| 1401 | "c=%d r=%d n=%d\n", |
| 1402 | cur_bytes, returned_bytes, n); |
| 1403 | oa->val_ptr = NULL; |
Boaz Harrosh | eff2149 | 2009-11-16 20:47:47 +0200 | [diff] [blame] | 1404 | cur_bytes = returned_bytes; /* break the caller loop */ |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1405 | break; |
| 1406 | } |
| 1407 | |
Boaz Harrosh | 71f32e3 | 2009-04-19 19:11:42 +0300 | [diff] [blame] | 1408 | cur_bytes += inc; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1409 | cur_p += inc; |
| 1410 | ++oa; |
| 1411 | } |
| 1412 | |
| 1413 | *iterator = (returned_bytes - cur_bytes) ? cur_p : NULL; |
| 1414 | *nelem = n; |
| 1415 | return returned_bytes - cur_bytes; |
| 1416 | } |
| 1417 | EXPORT_SYMBOL(osd_req_decode_get_attr_list); |
| 1418 | |
| 1419 | /* |
| 1420 | * Attributes Page-mode |
| 1421 | */ |
| 1422 | |
| 1423 | int osd_req_add_get_attr_page(struct osd_request *or, |
| 1424 | u32 page_id, void *attar_page, unsigned max_page_len, |
| 1425 | const struct osd_attr *set_one_attr) |
| 1426 | { |
| 1427 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1428 | |
| 1429 | if (or->attributes_mode && |
| 1430 | or->attributes_mode != OSD_CDB_GET_ATTR_PAGE_SET_ONE) { |
| 1431 | WARN_ON(1); |
| 1432 | return -EINVAL; |
| 1433 | } |
| 1434 | or->attributes_mode = OSD_CDB_GET_ATTR_PAGE_SET_ONE; |
| 1435 | |
| 1436 | or->get_attr.buff = attar_page; |
| 1437 | or->get_attr.total_bytes = max_page_len; |
| 1438 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1439 | cdbh->attrs_page.get_attr_page = cpu_to_be32(page_id); |
| 1440 | cdbh->attrs_page.get_attr_alloc_length = cpu_to_be32(max_page_len); |
Boaz Harrosh | ec6a0a4 | 2010-10-19 14:20:31 +0200 | [diff] [blame] | 1441 | |
| 1442 | if (!set_one_attr || !set_one_attr->attr_page) |
| 1443 | return 0; /* The set is optional */ |
| 1444 | |
| 1445 | or->set_attr.buff = set_one_attr->val_ptr; |
| 1446 | or->set_attr.total_bytes = set_one_attr->len; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1447 | |
| 1448 | cdbh->attrs_page.set_attr_page = cpu_to_be32(set_one_attr->attr_page); |
| 1449 | cdbh->attrs_page.set_attr_id = cpu_to_be32(set_one_attr->attr_id); |
| 1450 | cdbh->attrs_page.set_attr_length = cpu_to_be32(set_one_attr->len); |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1451 | return 0; |
| 1452 | } |
| 1453 | EXPORT_SYMBOL(osd_req_add_get_attr_page); |
| 1454 | |
| 1455 | static int _osd_req_finalize_attr_page(struct osd_request *or) |
| 1456 | { |
| 1457 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1458 | unsigned in_padding, out_padding; |
| 1459 | int ret; |
| 1460 | |
| 1461 | /* returned page */ |
| 1462 | cdbh->attrs_page.get_attr_offset = |
| 1463 | osd_req_encode_offset(or, or->in.total_bytes, &in_padding); |
| 1464 | |
| 1465 | ret = _req_append_segment(or, in_padding, &or->get_attr, NULL, |
| 1466 | &or->in); |
| 1467 | if (ret) |
| 1468 | return ret; |
| 1469 | |
Boaz Harrosh | ec6a0a4 | 2010-10-19 14:20:31 +0200 | [diff] [blame] | 1470 | if (or->set_attr.total_bytes == 0) |
| 1471 | return 0; |
| 1472 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1473 | /* set one value */ |
| 1474 | cdbh->attrs_page.set_attr_offset = |
| 1475 | osd_req_encode_offset(or, or->out.total_bytes, &out_padding); |
| 1476 | |
Boaz Harrosh | ec6a0a4 | 2010-10-19 14:20:31 +0200 | [diff] [blame] | 1477 | ret = _req_append_segment(or, out_padding, &or->set_attr, NULL, |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1478 | &or->out); |
| 1479 | return ret; |
| 1480 | } |
| 1481 | |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 1482 | static inline void osd_sec_parms_set_out_offset(bool is_v1, |
| 1483 | struct osd_security_parameters *sec_parms, osd_cdb_offset offset) |
| 1484 | { |
| 1485 | if (is_v1) |
| 1486 | sec_parms->v1.data_out_integrity_check_offset = offset; |
| 1487 | else |
| 1488 | sec_parms->v2.data_out_integrity_check_offset = offset; |
| 1489 | } |
| 1490 | |
| 1491 | static inline void osd_sec_parms_set_in_offset(bool is_v1, |
| 1492 | struct osd_security_parameters *sec_parms, osd_cdb_offset offset) |
| 1493 | { |
| 1494 | if (is_v1) |
| 1495 | sec_parms->v1.data_in_integrity_check_offset = offset; |
| 1496 | else |
| 1497 | sec_parms->v2.data_in_integrity_check_offset = offset; |
| 1498 | } |
| 1499 | |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1500 | static int _osd_req_finalize_data_integrity(struct osd_request *or, |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1501 | bool has_in, bool has_out, struct bio *out_data_bio, u64 out_data_bytes, |
| 1502 | const u8 *cap_key) |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1503 | { |
| 1504 | struct osd_security_parameters *sec_parms = _osd_req_sec_params(or); |
| 1505 | int ret; |
| 1506 | |
| 1507 | if (!osd_is_sec_alldata(sec_parms)) |
| 1508 | return 0; |
| 1509 | |
| 1510 | if (has_out) { |
| 1511 | struct _osd_req_data_segment seg = { |
| 1512 | .buff = &or->out_data_integ, |
| 1513 | .total_bytes = sizeof(or->out_data_integ), |
| 1514 | }; |
| 1515 | unsigned pad; |
| 1516 | |
Boaz Harrosh | 546881a | 2009-05-24 20:04:00 +0300 | [diff] [blame] | 1517 | or->out_data_integ.data_bytes = cpu_to_be64(out_data_bytes); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1518 | or->out_data_integ.set_attributes_bytes = cpu_to_be64( |
| 1519 | or->set_attr.total_bytes); |
| 1520 | or->out_data_integ.get_attributes_bytes = cpu_to_be64( |
| 1521 | or->enc_get_attr.total_bytes); |
| 1522 | |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 1523 | osd_sec_parms_set_out_offset(osd_req_is_ver1(or), sec_parms, |
| 1524 | osd_req_encode_offset(or, or->out.total_bytes, &pad)); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1525 | |
| 1526 | ret = _req_append_segment(or, pad, &seg, or->out.last_seg, |
| 1527 | &or->out); |
| 1528 | if (ret) |
| 1529 | return ret; |
| 1530 | or->out.last_seg = NULL; |
| 1531 | |
| 1532 | /* they are now all chained to request sign them all together */ |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1533 | osd_sec_sign_data(&or->out_data_integ, out_data_bio, |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1534 | cap_key); |
| 1535 | } |
| 1536 | |
| 1537 | if (has_in) { |
| 1538 | struct _osd_req_data_segment seg = { |
| 1539 | .buff = &or->in_data_integ, |
| 1540 | .total_bytes = sizeof(or->in_data_integ), |
| 1541 | }; |
| 1542 | unsigned pad; |
| 1543 | |
Boaz Harrosh | f8d3a64 | 2009-04-19 19:13:39 +0300 | [diff] [blame] | 1544 | osd_sec_parms_set_in_offset(osd_req_is_ver1(or), sec_parms, |
| 1545 | osd_req_encode_offset(or, or->in.total_bytes, &pad)); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1546 | |
| 1547 | ret = _req_append_segment(or, pad, &seg, or->in.last_seg, |
| 1548 | &or->in); |
| 1549 | if (ret) |
| 1550 | return ret; |
| 1551 | |
| 1552 | or->in.last_seg = NULL; |
| 1553 | } |
| 1554 | |
| 1555 | return 0; |
| 1556 | } |
| 1557 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1558 | /* |
| 1559 | * osd_finalize_request and helpers |
| 1560 | */ |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1561 | static struct request *_make_request(struct request_queue *q, bool has_write, |
| 1562 | struct _osd_io_info *oii, gfp_t flags) |
| 1563 | { |
| 1564 | if (oii->bio) |
| 1565 | return blk_make_request(q, oii->bio, flags); |
| 1566 | else { |
| 1567 | struct request *req; |
| 1568 | |
| 1569 | req = blk_get_request(q, has_write ? WRITE : READ, flags); |
Joe Lawrence | a492f07 | 2014-08-28 08:15:21 -0600 | [diff] [blame] | 1570 | if (IS_ERR(req)) |
| 1571 | return req; |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1572 | |
Jens Axboe | f27b087 | 2014-06-06 07:57:37 -0600 | [diff] [blame] | 1573 | blk_rq_set_block_pc(req); |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1574 | return req; |
| 1575 | } |
| 1576 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1577 | |
| 1578 | static int _init_blk_request(struct osd_request *or, |
| 1579 | bool has_in, bool has_out) |
| 1580 | { |
| 1581 | gfp_t flags = or->alloc_flags; |
| 1582 | struct scsi_device *scsi_device = or->osd_dev->scsi_device; |
| 1583 | struct request_queue *q = scsi_device->request_queue; |
| 1584 | struct request *req; |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1585 | int ret; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1586 | |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1587 | req = _make_request(q, has_out, has_out ? &or->out : &or->in, flags); |
| 1588 | if (IS_ERR(req)) { |
| 1589 | ret = PTR_ERR(req); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1590 | goto out; |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1591 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1592 | |
| 1593 | or->request = req; |
Boaz Harrosh | 0330679 | 2009-05-24 20:05:43 +0300 | [diff] [blame] | 1594 | req->cmd_flags |= REQ_QUIET; |
| 1595 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1596 | req->timeout = or->timeout; |
| 1597 | req->retries = or->retries; |
| 1598 | req->sense = or->sense; |
| 1599 | req->sense_len = 0; |
| 1600 | |
| 1601 | if (has_out) { |
| 1602 | or->out.req = req; |
| 1603 | if (has_in) { |
| 1604 | /* allocate bidi request */ |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1605 | req = _make_request(q, false, &or->in, flags); |
| 1606 | if (IS_ERR(req)) { |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1607 | OSD_DEBUG("blk_get_request for bidi failed\n"); |
Boaz Harrosh | c29b70f | 2009-05-17 18:58:41 +0300 | [diff] [blame] | 1608 | ret = PTR_ERR(req); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1609 | goto out; |
| 1610 | } |
Jens Axboe | f27b087 | 2014-06-06 07:57:37 -0600 | [diff] [blame] | 1611 | blk_rq_set_block_pc(req); |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1612 | or->in.req = or->request->next_rq = req; |
| 1613 | } |
| 1614 | } else if (has_in) |
| 1615 | or->in.req = req; |
| 1616 | |
| 1617 | ret = 0; |
| 1618 | out: |
| 1619 | OSD_DEBUG("or=%p has_in=%d has_out=%d => %d, %p\n", |
| 1620 | or, has_in, has_out, ret, or->request); |
| 1621 | return ret; |
| 1622 | } |
| 1623 | |
| 1624 | int osd_finalize_request(struct osd_request *or, |
| 1625 | u8 options, const void *cap, const u8 *cap_key) |
| 1626 | { |
| 1627 | struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb); |
| 1628 | bool has_in, has_out; |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1629 | /* Save for data_integrity without the cdb_continuation */ |
| 1630 | struct bio *out_data_bio = or->out.bio; |
Boaz Harrosh | 546881a | 2009-05-24 20:04:00 +0300 | [diff] [blame] | 1631 | u64 out_data_bytes = or->out.total_bytes; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1632 | int ret; |
| 1633 | |
| 1634 | if (options & OSD_REQ_FUA) |
| 1635 | cdbh->options |= OSD_CDB_FUA; |
| 1636 | |
| 1637 | if (options & OSD_REQ_DPO) |
| 1638 | cdbh->options |= OSD_CDB_DPO; |
| 1639 | |
| 1640 | if (options & OSD_REQ_BYPASS_TIMESTAMPS) |
| 1641 | cdbh->timestamp_control = OSD_CDB_BYPASS_TIMESTAMPS; |
| 1642 | |
| 1643 | osd_set_caps(&or->cdb, cap); |
| 1644 | |
| 1645 | has_in = or->in.bio || or->get_attr.total_bytes; |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1646 | has_out = or->out.bio || or->cdb_cont.total_bytes || |
| 1647 | or->set_attr.total_bytes || or->enc_get_attr.total_bytes; |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1648 | |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1649 | ret = _osd_req_finalize_cdb_cont(or, cap_key); |
| 1650 | if (ret) { |
| 1651 | OSD_DEBUG("_osd_req_finalize_cdb_cont failed\n"); |
| 1652 | return ret; |
| 1653 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1654 | ret = _init_blk_request(or, has_in, has_out); |
| 1655 | if (ret) { |
| 1656 | OSD_DEBUG("_init_blk_request failed\n"); |
| 1657 | return ret; |
| 1658 | } |
| 1659 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1660 | or->out.pad_buff = sg_out_pad_buffer; |
| 1661 | or->in.pad_buff = sg_in_pad_buffer; |
| 1662 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1663 | if (!or->attributes_mode) |
| 1664 | or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS; |
| 1665 | cdbh->command_specific_options |= or->attributes_mode; |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1666 | if (or->attributes_mode == OSD_CDB_GET_ATTR_PAGE_SET_ONE) { |
| 1667 | ret = _osd_req_finalize_attr_page(or); |
Boaz Harrosh | 98e1e0f | 2010-02-19 11:46:24 -0800 | [diff] [blame] | 1668 | if (ret) { |
| 1669 | OSD_DEBUG("_osd_req_finalize_attr_page failed\n"); |
| 1670 | return ret; |
| 1671 | } |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 1672 | } else { |
| 1673 | /* TODO: I think that for the GET_ATTR command these 2 should |
| 1674 | * be reversed to keep them in execution order (for embeded |
| 1675 | * targets with low memory footprint) |
| 1676 | */ |
| 1677 | ret = _osd_req_finalize_set_attr_list(or); |
| 1678 | if (ret) { |
| 1679 | OSD_DEBUG("_osd_req_finalize_set_attr_list failed\n"); |
| 1680 | return ret; |
| 1681 | } |
| 1682 | |
| 1683 | ret = _osd_req_finalize_get_attr_list(or); |
| 1684 | if (ret) { |
| 1685 | OSD_DEBUG("_osd_req_finalize_get_attr_list failed\n"); |
| 1686 | return ret; |
| 1687 | } |
| 1688 | } |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1689 | |
Boaz Harrosh | 546881a | 2009-05-24 20:04:00 +0300 | [diff] [blame] | 1690 | ret = _osd_req_finalize_data_integrity(or, has_in, has_out, |
Boaz Harrosh | e96e72c | 2010-10-19 14:22:21 +0200 | [diff] [blame] | 1691 | out_data_bio, out_data_bytes, |
| 1692 | cap_key); |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 1693 | if (ret) |
| 1694 | return ret; |
| 1695 | |
| 1696 | osd_sec_sign_cdb(&or->cdb, cap_key); |
| 1697 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1698 | or->request->cmd = or->cdb.buff; |
| 1699 | or->request->cmd_len = _osd_req_cdb_len(or); |
| 1700 | |
| 1701 | return 0; |
| 1702 | } |
| 1703 | EXPORT_SYMBOL(osd_finalize_request); |
| 1704 | |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1705 | static bool _is_osd_security_code(int code) |
| 1706 | { |
| 1707 | return (code == osd_security_audit_value_frozen) || |
| 1708 | (code == osd_security_working_key_frozen) || |
| 1709 | (code == osd_nonce_not_unique) || |
| 1710 | (code == osd_nonce_timestamp_out_of_range) || |
| 1711 | (code == osd_invalid_dataout_buffer_integrity_check_value); |
| 1712 | } |
| 1713 | |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1714 | #define OSD_SENSE_PRINT1(fmt, a...) \ |
| 1715 | do { \ |
| 1716 | if (__cur_sense_need_output) \ |
| 1717 | OSD_ERR(fmt, ##a); \ |
| 1718 | } while (0) |
| 1719 | |
| 1720 | #define OSD_SENSE_PRINT2(fmt, a...) OSD_SENSE_PRINT1(" " fmt, ##a) |
| 1721 | |
| 1722 | int osd_req_decode_sense_full(struct osd_request *or, |
| 1723 | struct osd_sense_info *osi, bool silent, |
| 1724 | struct osd_obj_id *bad_obj_list __unused, int max_obj __unused, |
| 1725 | struct osd_attr *bad_attr_list, int max_attr) |
| 1726 | { |
| 1727 | int sense_len, original_sense_len; |
| 1728 | struct osd_sense_info local_osi; |
| 1729 | struct scsi_sense_descriptor_based *ssdb; |
| 1730 | void *cur_descriptor; |
| 1731 | #if (CONFIG_SCSI_OSD_DPRINT_SENSE == 0) |
| 1732 | const bool __cur_sense_need_output = false; |
| 1733 | #else |
| 1734 | bool __cur_sense_need_output = !silent; |
| 1735 | #endif |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1736 | int ret; |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1737 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 1738 | if (likely(!or->req_errors)) |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1739 | return 0; |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1740 | |
| 1741 | osi = osi ? : &local_osi; |
| 1742 | memset(osi, 0, sizeof(*osi)); |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1743 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 1744 | ssdb = (typeof(ssdb))or->sense; |
| 1745 | sense_len = or->sense_len; |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1746 | if ((sense_len < (int)sizeof(*ssdb) || !ssdb->sense_key)) { |
| 1747 | OSD_ERR("Block-layer returned error(0x%x) but " |
| 1748 | "sense_len(%u) || key(%d) is empty\n", |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 1749 | or->req_errors, sense_len, ssdb->sense_key); |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1750 | goto analyze; |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1751 | } |
| 1752 | |
| 1753 | if ((ssdb->response_code != 0x72) && (ssdb->response_code != 0x73)) { |
| 1754 | OSD_ERR("Unrecognized scsi sense: rcode=%x length=%d\n", |
| 1755 | ssdb->response_code, sense_len); |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1756 | goto analyze; |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1757 | } |
| 1758 | |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1759 | osi->key = ssdb->sense_key; |
| 1760 | osi->additional_code = be16_to_cpu(ssdb->additional_sense_code); |
| 1761 | original_sense_len = ssdb->additional_sense_length + 8; |
| 1762 | |
| 1763 | #if (CONFIG_SCSI_OSD_DPRINT_SENSE == 1) |
| 1764 | if (__cur_sense_need_output) |
| 1765 | __cur_sense_need_output = (osi->key > scsi_sk_recovered_error); |
| 1766 | #endif |
| 1767 | OSD_SENSE_PRINT1("Main Sense information key=0x%x length(%d, %d) " |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1768 | "additional_code=0x%x async_error=%d errors=0x%x\n", |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1769 | osi->key, original_sense_len, sense_len, |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1770 | osi->additional_code, or->async_error, |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 1771 | or->req_errors); |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1772 | |
| 1773 | if (original_sense_len < sense_len) |
| 1774 | sense_len = original_sense_len; |
| 1775 | |
| 1776 | cur_descriptor = ssdb->ssd; |
| 1777 | sense_len -= sizeof(*ssdb); |
| 1778 | while (sense_len > 0) { |
| 1779 | struct scsi_sense_descriptor *ssd = cur_descriptor; |
| 1780 | int cur_len = ssd->additional_length + 2; |
| 1781 | |
| 1782 | sense_len -= cur_len; |
| 1783 | |
| 1784 | if (sense_len < 0) |
| 1785 | break; /* sense was truncated */ |
| 1786 | |
| 1787 | switch (ssd->descriptor_type) { |
| 1788 | case scsi_sense_information: |
| 1789 | case scsi_sense_command_specific_information: |
| 1790 | { |
| 1791 | struct scsi_sense_command_specific_data_descriptor |
| 1792 | *sscd = cur_descriptor; |
| 1793 | |
| 1794 | osi->command_info = |
| 1795 | get_unaligned_be64(&sscd->information) ; |
| 1796 | OSD_SENSE_PRINT2( |
| 1797 | "command_specific_information 0x%llx \n", |
| 1798 | _LLU(osi->command_info)); |
| 1799 | break; |
| 1800 | } |
| 1801 | case scsi_sense_key_specific: |
| 1802 | { |
| 1803 | struct scsi_sense_key_specific_data_descriptor |
| 1804 | *ssks = cur_descriptor; |
| 1805 | |
| 1806 | osi->sense_info = get_unaligned_be16(&ssks->value); |
| 1807 | OSD_SENSE_PRINT2( |
| 1808 | "sense_key_specific_information %u" |
| 1809 | "sksv_cd_bpv_bp (0x%x)\n", |
| 1810 | osi->sense_info, ssks->sksv_cd_bpv_bp); |
| 1811 | break; |
| 1812 | } |
| 1813 | case osd_sense_object_identification: |
| 1814 | { /*FIXME: Keep first not last, Store in array*/ |
| 1815 | struct osd_sense_identification_data_descriptor |
| 1816 | *osidd = cur_descriptor; |
| 1817 | |
| 1818 | osi->not_initiated_command_functions = |
| 1819 | le32_to_cpu(osidd->not_initiated_functions); |
| 1820 | osi->completed_command_functions = |
| 1821 | le32_to_cpu(osidd->completed_functions); |
| 1822 | osi->obj.partition = be64_to_cpu(osidd->partition_id); |
| 1823 | osi->obj.id = be64_to_cpu(osidd->object_id); |
| 1824 | OSD_SENSE_PRINT2( |
| 1825 | "object_identification pid=0x%llx oid=0x%llx\n", |
| 1826 | _LLU(osi->obj.partition), _LLU(osi->obj.id)); |
| 1827 | OSD_SENSE_PRINT2( |
| 1828 | "not_initiated_bits(%x) " |
| 1829 | "completed_command_bits(%x)\n", |
| 1830 | osi->not_initiated_command_functions, |
| 1831 | osi->completed_command_functions); |
| 1832 | break; |
| 1833 | } |
| 1834 | case osd_sense_response_integrity_check: |
| 1835 | { |
| 1836 | struct osd_sense_response_integrity_check_descriptor |
| 1837 | *osricd = cur_descriptor; |
| 1838 | const unsigned len = |
| 1839 | sizeof(osricd->integrity_check_value); |
| 1840 | char key_dump[len*4 + 2]; /* 2nibbles+space+ASCII */ |
| 1841 | |
| 1842 | hex_dump_to_buffer(osricd->integrity_check_value, len, |
| 1843 | 32, 1, key_dump, sizeof(key_dump), true); |
| 1844 | OSD_SENSE_PRINT2("response_integrity [%s]\n", key_dump); |
| 1845 | } |
| 1846 | case osd_sense_attribute_identification: |
| 1847 | { |
| 1848 | struct osd_sense_attributes_data_descriptor |
| 1849 | *osadd = cur_descriptor; |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame] | 1850 | unsigned len = min(cur_len, sense_len); |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1851 | struct osd_sense_attr *pattr = osadd->sense_attrs; |
| 1852 | |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame] | 1853 | while (len >= sizeof(*pattr)) { |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1854 | u32 attr_page = be32_to_cpu(pattr->attr_page); |
| 1855 | u32 attr_id = be32_to_cpu(pattr->attr_id); |
| 1856 | |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame] | 1857 | if (!osi->attr.attr_page) { |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1858 | osi->attr.attr_page = attr_page; |
| 1859 | osi->attr.attr_id = attr_id; |
| 1860 | } |
| 1861 | |
| 1862 | if (bad_attr_list && max_attr) { |
| 1863 | bad_attr_list->attr_page = attr_page; |
| 1864 | bad_attr_list->attr_id = attr_id; |
| 1865 | bad_attr_list++; |
| 1866 | max_attr--; |
| 1867 | } |
Boaz Harrosh | 71ecb74 | 2009-11-16 20:47:07 +0200 | [diff] [blame] | 1868 | |
| 1869 | len -= sizeof(*pattr); |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1870 | OSD_SENSE_PRINT2( |
| 1871 | "osd_sense_attribute_identification" |
| 1872 | "attr_page=0x%x attr_id=0x%x\n", |
| 1873 | attr_page, attr_id); |
| 1874 | } |
| 1875 | } |
| 1876 | /*These are not legal for OSD*/ |
| 1877 | case scsi_sense_field_replaceable_unit: |
| 1878 | OSD_SENSE_PRINT2("scsi_sense_field_replaceable_unit\n"); |
| 1879 | break; |
| 1880 | case scsi_sense_stream_commands: |
| 1881 | OSD_SENSE_PRINT2("scsi_sense_stream_commands\n"); |
| 1882 | break; |
| 1883 | case scsi_sense_block_commands: |
| 1884 | OSD_SENSE_PRINT2("scsi_sense_block_commands\n"); |
| 1885 | break; |
| 1886 | case scsi_sense_ata_return: |
| 1887 | OSD_SENSE_PRINT2("scsi_sense_ata_return\n"); |
| 1888 | break; |
| 1889 | default: |
| 1890 | if (ssd->descriptor_type <= scsi_sense_Reserved_last) |
| 1891 | OSD_SENSE_PRINT2( |
| 1892 | "scsi_sense Reserved descriptor (0x%x)", |
| 1893 | ssd->descriptor_type); |
| 1894 | else |
| 1895 | OSD_SENSE_PRINT2( |
| 1896 | "scsi_sense Vendor descriptor (0x%x)", |
| 1897 | ssd->descriptor_type); |
| 1898 | } |
| 1899 | |
| 1900 | cur_descriptor += cur_len; |
| 1901 | } |
| 1902 | |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1903 | analyze: |
| 1904 | if (!osi->key) { |
| 1905 | /* scsi sense is Empty, the request was never issued to target |
| 1906 | * linux return code might tell us what happened. |
| 1907 | */ |
| 1908 | if (or->async_error == -ENOMEM) |
| 1909 | osi->osd_err_pri = OSD_ERR_PRI_RESOURCE; |
| 1910 | else |
| 1911 | osi->osd_err_pri = OSD_ERR_PRI_UNREACHABLE; |
| 1912 | ret = or->async_error; |
| 1913 | } else if (osi->key <= scsi_sk_recovered_error) { |
| 1914 | osi->osd_err_pri = 0; |
| 1915 | ret = 0; |
| 1916 | } else if (osi->additional_code == scsi_invalid_field_in_cdb) { |
| 1917 | if (osi->cdb_field_offset == OSD_CFO_STARTING_BYTE) { |
| 1918 | osi->osd_err_pri = OSD_ERR_PRI_CLEAR_PAGES; |
| 1919 | ret = -EFAULT; /* caller should recover from this */ |
| 1920 | } else if (osi->cdb_field_offset == OSD_CFO_OBJECT_ID) { |
| 1921 | osi->osd_err_pri = OSD_ERR_PRI_NOT_FOUND; |
| 1922 | ret = -ENOENT; |
| 1923 | } else if (osi->cdb_field_offset == OSD_CFO_PERMISSIONS) { |
| 1924 | osi->osd_err_pri = OSD_ERR_PRI_NO_ACCESS; |
| 1925 | ret = -EACCES; |
| 1926 | } else { |
| 1927 | osi->osd_err_pri = OSD_ERR_PRI_BAD_CRED; |
| 1928 | ret = -EINVAL; |
| 1929 | } |
| 1930 | } else if (osi->additional_code == osd_quota_error) { |
| 1931 | osi->osd_err_pri = OSD_ERR_PRI_NO_SPACE; |
| 1932 | ret = -ENOSPC; |
| 1933 | } else if (_is_osd_security_code(osi->additional_code)) { |
| 1934 | osi->osd_err_pri = OSD_ERR_PRI_BAD_CRED; |
| 1935 | ret = -EINVAL; |
| 1936 | } else { |
| 1937 | osi->osd_err_pri = OSD_ERR_PRI_EIO; |
| 1938 | ret = -EIO; |
| 1939 | } |
| 1940 | |
Boaz Harrosh | 5d0961f | 2009-12-01 17:36:21 +0200 | [diff] [blame] | 1941 | if (!or->out.residual) |
| 1942 | or->out.residual = or->out.total_bytes; |
| 1943 | if (!or->in.residual) |
| 1944 | or->in.residual = or->in.total_bytes; |
Boaz Harrosh | aa9fffb | 2009-11-16 20:48:38 +0200 | [diff] [blame] | 1945 | |
| 1946 | return ret; |
Boaz Harrosh | 98f3aea | 2009-01-25 17:15:16 +0200 | [diff] [blame] | 1947 | } |
| 1948 | EXPORT_SYMBOL(osd_req_decode_sense_full); |
| 1949 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1950 | /* |
| 1951 | * Implementation of osd_sec.h API |
| 1952 | * TODO: Move to a separate osd_sec.c file at a later stage. |
| 1953 | */ |
| 1954 | |
| 1955 | enum { OSD_SEC_CAP_V1_ALL_CAPS = |
| 1956 | OSD_SEC_CAP_APPEND | OSD_SEC_CAP_OBJ_MGMT | OSD_SEC_CAP_REMOVE | |
| 1957 | OSD_SEC_CAP_CREATE | OSD_SEC_CAP_SET_ATTR | OSD_SEC_CAP_GET_ATTR | |
| 1958 | OSD_SEC_CAP_WRITE | OSD_SEC_CAP_READ | OSD_SEC_CAP_POL_SEC | |
| 1959 | OSD_SEC_CAP_GLOBAL | OSD_SEC_CAP_DEV_MGMT |
| 1960 | }; |
| 1961 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 1962 | enum { OSD_SEC_CAP_V2_ALL_CAPS = |
| 1963 | OSD_SEC_CAP_V1_ALL_CAPS | OSD_SEC_CAP_QUERY | OSD_SEC_CAP_M_OBJECT |
| 1964 | }; |
| 1965 | |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 1966 | void osd_sec_init_nosec_doall_caps(void *caps, |
| 1967 | const struct osd_obj_id *obj, bool is_collection, const bool is_v1) |
| 1968 | { |
| 1969 | struct osd_capability *cap = caps; |
| 1970 | u8 type; |
| 1971 | u8 descriptor_type; |
| 1972 | |
| 1973 | if (likely(obj->id)) { |
| 1974 | if (unlikely(is_collection)) { |
| 1975 | type = OSD_SEC_OBJ_COLLECTION; |
| 1976 | descriptor_type = is_v1 ? OSD_SEC_OBJ_DESC_OBJ : |
| 1977 | OSD_SEC_OBJ_DESC_COL; |
| 1978 | } else { |
| 1979 | type = OSD_SEC_OBJ_USER; |
| 1980 | descriptor_type = OSD_SEC_OBJ_DESC_OBJ; |
| 1981 | } |
| 1982 | WARN_ON(!obj->partition); |
| 1983 | } else { |
| 1984 | type = obj->partition ? OSD_SEC_OBJ_PARTITION : |
| 1985 | OSD_SEC_OBJ_ROOT; |
| 1986 | descriptor_type = OSD_SEC_OBJ_DESC_PAR; |
| 1987 | } |
| 1988 | |
| 1989 | memset(cap, 0, sizeof(*cap)); |
| 1990 | |
| 1991 | cap->h.format = OSD_SEC_CAP_FORMAT_VER1; |
| 1992 | cap->h.integrity_algorithm__key_version = 0; /* MAKE_BYTE(0, 0); */ |
| 1993 | cap->h.security_method = OSD_SEC_NOSEC; |
| 1994 | /* cap->expiration_time; |
| 1995 | cap->AUDIT[30-10]; |
| 1996 | cap->discriminator[42-30]; |
| 1997 | cap->object_created_time; */ |
| 1998 | cap->h.object_type = type; |
| 1999 | osd_sec_set_caps(&cap->h, OSD_SEC_CAP_V1_ALL_CAPS); |
| 2000 | cap->h.object_descriptor_type = descriptor_type; |
| 2001 | cap->od.obj_desc.policy_access_tag = 0; |
| 2002 | cap->od.obj_desc.allowed_partition_id = cpu_to_be64(obj->partition); |
| 2003 | cap->od.obj_desc.allowed_object_id = cpu_to_be64(obj->id); |
| 2004 | } |
| 2005 | EXPORT_SYMBOL(osd_sec_init_nosec_doall_caps); |
| 2006 | |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 2007 | /* FIXME: Extract version from caps pointer. |
| 2008 | * Also Pete's target only supports caps from OSDv1 for now |
| 2009 | */ |
Boaz Harrosh | 02941a5 | 2009-01-25 16:55:30 +0200 | [diff] [blame] | 2010 | void osd_set_caps(struct osd_cdb *cdb, const void *caps) |
| 2011 | { |
Boaz Harrosh | c6572c9 | 2009-01-25 17:09:40 +0200 | [diff] [blame] | 2012 | bool is_ver1 = true; |
| 2013 | /* NOTE: They start at same address */ |
| 2014 | 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] | 2015 | } |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 2016 | |
Boaz Harrosh | 345c435 | 2009-01-25 17:03:07 +0200 | [diff] [blame] | 2017 | bool osd_is_sec_alldata(struct osd_security_parameters *sec_parms __unused) |
| 2018 | { |
| 2019 | return false; |
| 2020 | } |
| 2021 | |
| 2022 | void osd_sec_sign_cdb(struct osd_cdb *ocdb __unused, const u8 *cap_key __unused) |
| 2023 | { |
| 2024 | } |
| 2025 | |
| 2026 | void osd_sec_sign_data(void *data_integ __unused, |
| 2027 | struct bio *bio __unused, const u8 *cap_key __unused) |
| 2028 | { |
| 2029 | } |
| 2030 | |
Boaz Harrosh | 4ef1a3d | 2009-01-25 16:59:50 +0200 | [diff] [blame] | 2031 | /* |
| 2032 | * Declared in osd_protocol.h |
| 2033 | * 4.12.5 Data-In and Data-Out buffer offsets |
| 2034 | * byte offset = mantissa * (2^(exponent+8)) |
| 2035 | * Returns the smallest allowed encoded offset that contains given @offset |
| 2036 | * The actual encoded offset returned is @offset + *@padding. |
| 2037 | */ |
| 2038 | osd_cdb_offset __osd_encode_offset( |
| 2039 | u64 offset, unsigned *padding, int min_shift, int max_shift) |
| 2040 | { |
| 2041 | u64 try_offset = -1, mod, align; |
| 2042 | osd_cdb_offset be32_offset; |
| 2043 | int shift; |
| 2044 | |
| 2045 | *padding = 0; |
| 2046 | if (!offset) |
| 2047 | return 0; |
| 2048 | |
| 2049 | for (shift = min_shift; shift < max_shift; ++shift) { |
| 2050 | try_offset = offset >> shift; |
| 2051 | if (try_offset < (1 << OSD_OFFSET_MAX_BITS)) |
| 2052 | break; |
| 2053 | } |
| 2054 | |
| 2055 | BUG_ON(shift == max_shift); |
| 2056 | |
| 2057 | align = 1 << shift; |
| 2058 | mod = offset & (align - 1); |
| 2059 | if (mod) { |
| 2060 | *padding = align - mod; |
| 2061 | try_offset += 1; |
| 2062 | } |
| 2063 | |
| 2064 | try_offset |= ((shift - 8) & 0xf) << 28; |
| 2065 | be32_offset = cpu_to_be32((u32)try_offset); |
| 2066 | |
| 2067 | OSD_DEBUG("offset=%llu mantissa=%llu exp=%d encoded=%x pad=%d\n", |
| 2068 | _LLU(offset), _LLU(try_offset & 0x0FFFFFFF), shift, |
| 2069 | be32_offset, *padding); |
| 2070 | return be32_offset; |
| 2071 | } |