| 1 | /******************************************************************************* |
| 2 | * Filename: target_core_stat.c |
| 3 | * |
| 4 | * Modern ConfigFS group context specific statistics based on original |
| 5 | * target_core_mib.c code |
| 6 | * |
| 7 | * (c) Copyright 2006-2013 Datera, Inc. |
| 8 | * |
| 9 | * Nicholas A. Bellinger <nab@linux-iscsi.org> |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 24 | * |
| 25 | ******************************************************************************/ |
| 26 | |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/delay.h> |
| 30 | #include <linux/timer.h> |
| 31 | #include <linux/string.h> |
| 32 | #include <linux/utsname.h> |
| 33 | #include <linux/proc_fs.h> |
| 34 | #include <linux/seq_file.h> |
| 35 | #include <linux/configfs.h> |
| 36 | |
| 37 | #include <target/target_core_base.h> |
| 38 | #include <target/target_core_backend.h> |
| 39 | #include <target/target_core_fabric.h> |
| 40 | |
| 41 | #include "target_core_internal.h" |
| 42 | |
| 43 | #ifndef INITIAL_JIFFIES |
| 44 | #define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) |
| 45 | #endif |
| 46 | |
| 47 | #define NONE "None" |
| 48 | #define ISPRINT(a) ((a >= ' ') && (a <= '~')) |
| 49 | |
| 50 | #define SCSI_LU_INDEX 1 |
| 51 | #define LU_COUNT 1 |
| 52 | |
| 53 | /* |
| 54 | * SCSI Device Table |
| 55 | */ |
| 56 | |
| 57 | static struct se_device *to_stat_dev(struct config_item *item) |
| 58 | { |
| 59 | struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), |
| 60 | struct se_dev_stat_grps, scsi_dev_group); |
| 61 | return container_of(sgrps, struct se_device, dev_stat_grps); |
| 62 | } |
| 63 | |
| 64 | static ssize_t target_stat_inst_show(struct config_item *item, char *page) |
| 65 | { |
| 66 | struct se_hba *hba = to_stat_dev(item)->se_hba; |
| 67 | |
| 68 | return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); |
| 69 | } |
| 70 | |
| 71 | static ssize_t target_stat_indx_show(struct config_item *item, char *page) |
| 72 | { |
| 73 | return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->dev_index); |
| 74 | } |
| 75 | |
| 76 | static ssize_t target_stat_role_show(struct config_item *item, char *page) |
| 77 | { |
| 78 | return snprintf(page, PAGE_SIZE, "Target\n"); |
| 79 | } |
| 80 | |
| 81 | static ssize_t target_stat_ports_show(struct config_item *item, char *page) |
| 82 | { |
| 83 | return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->export_count); |
| 84 | } |
| 85 | |
| 86 | CONFIGFS_ATTR_RO(target_stat_, inst); |
| 87 | CONFIGFS_ATTR_RO(target_stat_, indx); |
| 88 | CONFIGFS_ATTR_RO(target_stat_, role); |
| 89 | CONFIGFS_ATTR_RO(target_stat_, ports); |
| 90 | |
| 91 | static struct configfs_attribute *target_stat_scsi_dev_attrs[] = { |
| 92 | &target_stat_attr_inst, |
| 93 | &target_stat_attr_indx, |
| 94 | &target_stat_attr_role, |
| 95 | &target_stat_attr_ports, |
| 96 | NULL, |
| 97 | }; |
| 98 | |
| 99 | static struct config_item_type target_stat_scsi_dev_cit = { |
| 100 | .ct_attrs = target_stat_scsi_dev_attrs, |
| 101 | .ct_owner = THIS_MODULE, |
| 102 | }; |
| 103 | |
| 104 | /* |
| 105 | * SCSI Target Device Table |
| 106 | */ |
| 107 | static struct se_device *to_stat_tgt_dev(struct config_item *item) |
| 108 | { |
| 109 | struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), |
| 110 | struct se_dev_stat_grps, scsi_tgt_dev_group); |
| 111 | return container_of(sgrps, struct se_device, dev_stat_grps); |
| 112 | } |
| 113 | |
| 114 | static ssize_t target_stat_tgt_inst_show(struct config_item *item, char *page) |
| 115 | { |
| 116 | struct se_hba *hba = to_stat_tgt_dev(item)->se_hba; |
| 117 | |
| 118 | return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); |
| 119 | } |
| 120 | |
| 121 | static ssize_t target_stat_tgt_indx_show(struct config_item *item, char *page) |
| 122 | { |
| 123 | return snprintf(page, PAGE_SIZE, "%u\n", to_stat_tgt_dev(item)->dev_index); |
| 124 | } |
| 125 | |
| 126 | static ssize_t target_stat_tgt_num_lus_show(struct config_item *item, |
| 127 | char *page) |
| 128 | { |
| 129 | return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT); |
| 130 | } |
| 131 | |
| 132 | static ssize_t target_stat_tgt_status_show(struct config_item *item, |
| 133 | char *page) |
| 134 | { |
| 135 | if (to_stat_tgt_dev(item)->export_count) |
| 136 | return snprintf(page, PAGE_SIZE, "activated"); |
| 137 | else |
| 138 | return snprintf(page, PAGE_SIZE, "deactivated"); |
| 139 | } |
| 140 | |
| 141 | static ssize_t target_stat_tgt_non_access_lus_show(struct config_item *item, |
| 142 | char *page) |
| 143 | { |
| 144 | int non_accessible_lus; |
| 145 | |
| 146 | if (to_stat_tgt_dev(item)->export_count) |
| 147 | non_accessible_lus = 0; |
| 148 | else |
| 149 | non_accessible_lus = 1; |
| 150 | |
| 151 | return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus); |
| 152 | } |
| 153 | |
| 154 | static ssize_t target_stat_tgt_resets_show(struct config_item *item, |
| 155 | char *page) |
| 156 | { |
| 157 | return snprintf(page, PAGE_SIZE, "%lu\n", |
| 158 | atomic_long_read(&to_stat_tgt_dev(item)->num_resets)); |
| 159 | } |
| 160 | |
| 161 | CONFIGFS_ATTR_RO(target_stat_tgt_, inst); |
| 162 | CONFIGFS_ATTR_RO(target_stat_tgt_, indx); |
| 163 | CONFIGFS_ATTR_RO(target_stat_tgt_, num_lus); |
| 164 | CONFIGFS_ATTR_RO(target_stat_tgt_, status); |
| 165 | CONFIGFS_ATTR_RO(target_stat_tgt_, non_access_lus); |
| 166 | CONFIGFS_ATTR_RO(target_stat_tgt_, resets); |
| 167 | |
| 168 | static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = { |
| 169 | &target_stat_tgt_attr_inst, |
| 170 | &target_stat_tgt_attr_indx, |
| 171 | &target_stat_tgt_attr_num_lus, |
| 172 | &target_stat_tgt_attr_status, |
| 173 | &target_stat_tgt_attr_non_access_lus, |
| 174 | &target_stat_tgt_attr_resets, |
| 175 | NULL, |
| 176 | }; |
| 177 | |
| 178 | static struct config_item_type target_stat_scsi_tgt_dev_cit = { |
| 179 | .ct_attrs = target_stat_scsi_tgt_dev_attrs, |
| 180 | .ct_owner = THIS_MODULE, |
| 181 | }; |
| 182 | |
| 183 | /* |
| 184 | * SCSI Logical Unit Table |
| 185 | */ |
| 186 | |
| 187 | static struct se_device *to_stat_lu_dev(struct config_item *item) |
| 188 | { |
| 189 | struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), |
| 190 | struct se_dev_stat_grps, scsi_lu_group); |
| 191 | return container_of(sgrps, struct se_device, dev_stat_grps); |
| 192 | } |
| 193 | |
| 194 | static ssize_t target_stat_lu_inst_show(struct config_item *item, char *page) |
| 195 | { |
| 196 | struct se_hba *hba = to_stat_lu_dev(item)->se_hba; |
| 197 | |
| 198 | return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); |
| 199 | } |
| 200 | |
| 201 | static ssize_t target_stat_lu_dev_show(struct config_item *item, char *page) |
| 202 | { |
| 203 | return snprintf(page, PAGE_SIZE, "%u\n", |
| 204 | to_stat_lu_dev(item)->dev_index); |
| 205 | } |
| 206 | |
| 207 | static ssize_t target_stat_lu_indx_show(struct config_item *item, char *page) |
| 208 | { |
| 209 | return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX); |
| 210 | } |
| 211 | |
| 212 | static ssize_t target_stat_lu_lun_show(struct config_item *item, char *page) |
| 213 | { |
| 214 | /* FIXME: scsiLuDefaultLun */ |
| 215 | return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0); |
| 216 | } |
| 217 | |
| 218 | static ssize_t target_stat_lu_lu_name_show(struct config_item *item, char *page) |
| 219 | { |
| 220 | struct se_device *dev = to_stat_lu_dev(item); |
| 221 | |
| 222 | /* scsiLuWwnName */ |
| 223 | return snprintf(page, PAGE_SIZE, "%s\n", |
| 224 | (strlen(dev->t10_wwn.unit_serial)) ? |
| 225 | dev->t10_wwn.unit_serial : "None"); |
| 226 | } |
| 227 | |
| 228 | static ssize_t target_stat_lu_vend_show(struct config_item *item, char *page) |
| 229 | { |
| 230 | struct se_device *dev = to_stat_lu_dev(item); |
| 231 | int i; |
| 232 | char str[sizeof(dev->t10_wwn.vendor)+1]; |
| 233 | |
| 234 | /* scsiLuVendorId */ |
| 235 | for (i = 0; i < sizeof(dev->t10_wwn.vendor); i++) |
| 236 | str[i] = ISPRINT(dev->t10_wwn.vendor[i]) ? |
| 237 | dev->t10_wwn.vendor[i] : ' '; |
| 238 | str[i] = '\0'; |
| 239 | return snprintf(page, PAGE_SIZE, "%s\n", str); |
| 240 | } |
| 241 | |
| 242 | static ssize_t target_stat_lu_prod_show(struct config_item *item, char *page) |
| 243 | { |
| 244 | struct se_device *dev = to_stat_lu_dev(item); |
| 245 | int i; |
| 246 | char str[sizeof(dev->t10_wwn.model)+1]; |
| 247 | |
| 248 | /* scsiLuProductId */ |
| 249 | for (i = 0; i < sizeof(dev->t10_wwn.model); i++) |
| 250 | str[i] = ISPRINT(dev->t10_wwn.model[i]) ? |
| 251 | dev->t10_wwn.model[i] : ' '; |
| 252 | str[i] = '\0'; |
| 253 | return snprintf(page, PAGE_SIZE, "%s\n", str); |
| 254 | } |
| 255 | |
| 256 | static ssize_t target_stat_lu_rev_show(struct config_item *item, char *page) |
| 257 | { |
| 258 | struct se_device *dev = to_stat_lu_dev(item); |
| 259 | int i; |
| 260 | char str[sizeof(dev->t10_wwn.revision)+1]; |
| 261 | |
| 262 | /* scsiLuRevisionId */ |
| 263 | for (i = 0; i < sizeof(dev->t10_wwn.revision); i++) |
| 264 | str[i] = ISPRINT(dev->t10_wwn.revision[i]) ? |
| 265 | dev->t10_wwn.revision[i] : ' '; |
| 266 | str[i] = '\0'; |
| 267 | return snprintf(page, PAGE_SIZE, "%s\n", str); |
| 268 | } |
| 269 | |
| 270 | static ssize_t target_stat_lu_dev_type_show(struct config_item *item, char *page) |
| 271 | { |
| 272 | struct se_device *dev = to_stat_lu_dev(item); |
| 273 | |
| 274 | /* scsiLuPeripheralType */ |
| 275 | return snprintf(page, PAGE_SIZE, "%u\n", |
| 276 | dev->transport->get_device_type(dev)); |
| 277 | } |
| 278 | |
| 279 | static ssize_t target_stat_lu_status_show(struct config_item *item, char *page) |
| 280 | { |
| 281 | struct se_device *dev = to_stat_lu_dev(item); |
| 282 | |
| 283 | /* scsiLuStatus */ |
| 284 | return snprintf(page, PAGE_SIZE, "%s\n", |
| 285 | (dev->export_count) ? "available" : "notavailable"); |
| 286 | } |
| 287 | |
| 288 | static ssize_t target_stat_lu_state_bit_show(struct config_item *item, |
| 289 | char *page) |
| 290 | { |
| 291 | /* scsiLuState */ |
| 292 | return snprintf(page, PAGE_SIZE, "exposed\n"); |
| 293 | } |
| 294 | |
| 295 | static ssize_t target_stat_lu_num_cmds_show(struct config_item *item, |
| 296 | char *page) |
| 297 | { |
| 298 | struct se_device *dev = to_stat_lu_dev(item); |
| 299 | |
| 300 | /* scsiLuNumCommands */ |
| 301 | return snprintf(page, PAGE_SIZE, "%lu\n", |
| 302 | atomic_long_read(&dev->num_cmds)); |
| 303 | } |
| 304 | |
| 305 | static ssize_t target_stat_lu_read_mbytes_show(struct config_item *item, |
| 306 | char *page) |
| 307 | { |
| 308 | struct se_device *dev = to_stat_lu_dev(item); |
| 309 | |
| 310 | /* scsiLuReadMegaBytes */ |
| 311 | return snprintf(page, PAGE_SIZE, "%lu\n", |
| 312 | atomic_long_read(&dev->read_bytes) >> 20); |
| 313 | } |
| 314 | |
| 315 | static ssize_t target_stat_lu_write_mbytes_show(struct config_item *item, |
| 316 | char *page) |
| 317 | { |
| 318 | struct se_device *dev = to_stat_lu_dev(item); |
| 319 | |
| 320 | /* scsiLuWrittenMegaBytes */ |
| 321 | return snprintf(page, PAGE_SIZE, "%lu\n", |
| 322 | atomic_long_read(&dev->write_bytes) >> 20); |
| 323 | } |
| 324 | |
| 325 | static ssize_t target_stat_lu_resets_show(struct config_item *item, char *page) |
| 326 | { |
| 327 | struct se_device *dev = to_stat_lu_dev(item); |
| 328 | |
| 329 | /* scsiLuInResets */ |
| 330 | return snprintf(page, PAGE_SIZE, "%lu\n", |
| 331 | atomic_long_read(&dev->num_resets)); |
| 332 | } |
| 333 | |
| 334 | static ssize_t target_stat_lu_full_stat_show(struct config_item *item, |
| 335 | char *page) |
| 336 | { |
| 337 | /* FIXME: scsiLuOutTaskSetFullStatus */ |
| 338 | return snprintf(page, PAGE_SIZE, "%u\n", 0); |
| 339 | } |
| 340 | |
| 341 | static ssize_t target_stat_lu_hs_num_cmds_show(struct config_item *item, |
| 342 | char *page) |
| 343 | { |
| 344 | /* FIXME: scsiLuHSInCommands */ |
| 345 | return snprintf(page, PAGE_SIZE, "%u\n", 0); |
| 346 | } |
| 347 | |
| 348 | static ssize_t target_stat_lu_creation_time_show(struct config_item *item, |
| 349 | char *page) |
| 350 | { |
| 351 | struct se_device *dev = to_stat_lu_dev(item); |
| 352 | |
| 353 | /* scsiLuCreationTime */ |
| 354 | return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time - |
| 355 | INITIAL_JIFFIES) * 100 / HZ)); |
| 356 | } |
| 357 | |
| 358 | CONFIGFS_ATTR_RO(target_stat_lu_, inst); |
| 359 | CONFIGFS_ATTR_RO(target_stat_lu_, dev); |
| 360 | CONFIGFS_ATTR_RO(target_stat_lu_, indx); |
| 361 | CONFIGFS_ATTR_RO(target_stat_lu_, lun); |
| 362 | CONFIGFS_ATTR_RO(target_stat_lu_, lu_name); |
| 363 | CONFIGFS_ATTR_RO(target_stat_lu_, vend); |
| 364 | CONFIGFS_ATTR_RO(target_stat_lu_, prod); |
| 365 | CONFIGFS_ATTR_RO(target_stat_lu_, rev); |
| 366 | CONFIGFS_ATTR_RO(target_stat_lu_, dev_type); |
| 367 | CONFIGFS_ATTR_RO(target_stat_lu_, status); |
| 368 | CONFIGFS_ATTR_RO(target_stat_lu_, state_bit); |
| 369 | CONFIGFS_ATTR_RO(target_stat_lu_, num_cmds); |
| 370 | CONFIGFS_ATTR_RO(target_stat_lu_, read_mbytes); |
| 371 | CONFIGFS_ATTR_RO(target_stat_lu_, write_mbytes); |
| 372 | CONFIGFS_ATTR_RO(target_stat_lu_, resets); |
| 373 | CONFIGFS_ATTR_RO(target_stat_lu_, full_stat); |
| 374 | CONFIGFS_ATTR_RO(target_stat_lu_, hs_num_cmds); |
| 375 | CONFIGFS_ATTR_RO(target_stat_lu_, creation_time); |
| 376 | |
| 377 | static struct configfs_attribute *target_stat_scsi_lu_attrs[] = { |
| 378 | &target_stat_lu_attr_inst, |
| 379 | &target_stat_lu_attr_dev, |
| 380 | &target_stat_lu_attr_indx, |
| 381 | &target_stat_lu_attr_lun, |
| 382 | &target_stat_lu_attr_lu_name, |
| 383 | &target_stat_lu_attr_vend, |
| 384 | &target_stat_lu_attr_prod, |
| 385 | &target_stat_lu_attr_rev, |
| 386 | &target_stat_lu_attr_dev_type, |
| 387 | &target_stat_lu_attr_status, |
| 388 | &target_stat_lu_attr_state_bit, |
| 389 | &target_stat_lu_attr_num_cmds, |
| 390 | &target_stat_lu_attr_read_mbytes, |
| 391 | &target_stat_lu_attr_write_mbytes, |
| 392 | &target_stat_lu_attr_resets, |
| 393 | &target_stat_lu_attr_full_stat, |
| 394 | &target_stat_lu_attr_hs_num_cmds, |
| 395 | &target_stat_lu_attr_creation_time, |
| 396 | NULL, |
| 397 | }; |
| 398 | |
| 399 | static struct config_item_type target_stat_scsi_lu_cit = { |
| 400 | .ct_attrs = target_stat_scsi_lu_attrs, |
| 401 | .ct_owner = THIS_MODULE, |
| 402 | }; |
| 403 | |
| 404 | /* |
| 405 | * Called from target_core_configfs.c:target_core_make_subdev() to setup |
| 406 | * the target statistics groups + configfs CITs located in target_core_stat.c |
| 407 | */ |
| 408 | void target_stat_setup_dev_default_groups(struct se_device *dev) |
| 409 | { |
| 410 | struct config_group *dev_stat_grp = &dev->dev_stat_grps.stat_group; |
| 411 | |
| 412 | config_group_init_type_name(&dev->dev_stat_grps.scsi_dev_group, |
| 413 | "scsi_dev", &target_stat_scsi_dev_cit); |
| 414 | config_group_init_type_name(&dev->dev_stat_grps.scsi_tgt_dev_group, |
| 415 | "scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit); |
| 416 | config_group_init_type_name(&dev->dev_stat_grps.scsi_lu_group, |
| 417 | "scsi_lu", &target_stat_scsi_lu_cit); |
| 418 | |
| 419 | dev_stat_grp->default_groups[0] = &dev->dev_stat_grps.scsi_dev_group; |
| 420 | dev_stat_grp->default_groups[1] = &dev->dev_stat_grps.scsi_tgt_dev_group; |
| 421 | dev_stat_grp->default_groups[2] = &dev->dev_stat_grps.scsi_lu_group; |
| 422 | dev_stat_grp->default_groups[3] = NULL; |
| 423 | } |
| 424 | |
| 425 | /* |
| 426 | * SCSI Port Table |
| 427 | */ |
| 428 | |
| 429 | static struct se_lun *to_stat_port(struct config_item *item) |
| 430 | { |
| 431 | struct se_port_stat_grps *pgrps = container_of(to_config_group(item), |
| 432 | struct se_port_stat_grps, scsi_port_group); |
| 433 | return container_of(pgrps, struct se_lun, port_stat_grps); |
| 434 | } |
| 435 | |
| 436 | static ssize_t target_stat_port_inst_show(struct config_item *item, char *page) |
| 437 | { |
| 438 | struct se_lun *lun = to_stat_port(item); |
| 439 | struct se_device *dev; |
| 440 | ssize_t ret = -ENODEV; |
| 441 | |
| 442 | rcu_read_lock(); |
| 443 | dev = rcu_dereference(lun->lun_se_dev); |
| 444 | if (dev) |
| 445 | ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); |
| 446 | rcu_read_unlock(); |
| 447 | return ret; |
| 448 | } |
| 449 | |
| 450 | static ssize_t target_stat_port_dev_show(struct config_item *item, char *page) |
| 451 | { |
| 452 | struct se_lun *lun = to_stat_port(item); |
| 453 | struct se_device *dev; |
| 454 | ssize_t ret = -ENODEV; |
| 455 | |
| 456 | rcu_read_lock(); |
| 457 | dev = rcu_dereference(lun->lun_se_dev); |
| 458 | if (dev) |
| 459 | ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); |
| 460 | rcu_read_unlock(); |
| 461 | return ret; |
| 462 | } |
| 463 | |
| 464 | static ssize_t target_stat_port_indx_show(struct config_item *item, char *page) |
| 465 | { |
| 466 | struct se_lun *lun = to_stat_port(item); |
| 467 | struct se_device *dev; |
| 468 | ssize_t ret = -ENODEV; |
| 469 | |
| 470 | rcu_read_lock(); |
| 471 | dev = rcu_dereference(lun->lun_se_dev); |
| 472 | if (dev) |
| 473 | ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi); |
| 474 | rcu_read_unlock(); |
| 475 | return ret; |
| 476 | } |
| 477 | |
| 478 | static ssize_t target_stat_port_role_show(struct config_item *item, char *page) |
| 479 | { |
| 480 | struct se_lun *lun = to_stat_port(item); |
| 481 | struct se_device *dev; |
| 482 | ssize_t ret = -ENODEV; |
| 483 | |
| 484 | rcu_read_lock(); |
| 485 | dev = rcu_dereference(lun->lun_se_dev); |
| 486 | if (dev) |
| 487 | ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index); |
| 488 | rcu_read_unlock(); |
| 489 | return ret; |
| 490 | } |
| 491 | |
| 492 | static ssize_t target_stat_port_busy_count_show(struct config_item *item, |
| 493 | char *page) |
| 494 | { |
| 495 | struct se_lun *lun = to_stat_port(item); |
| 496 | struct se_device *dev; |
| 497 | ssize_t ret = -ENODEV; |
| 498 | |
| 499 | rcu_read_lock(); |
| 500 | dev = rcu_dereference(lun->lun_se_dev); |
| 501 | if (dev) { |
| 502 | /* FIXME: scsiPortBusyStatuses */ |
| 503 | ret = snprintf(page, PAGE_SIZE, "%u\n", 0); |
| 504 | } |
| 505 | rcu_read_unlock(); |
| 506 | return ret; |
| 507 | } |
| 508 | |
| 509 | CONFIGFS_ATTR_RO(target_stat_port_, inst); |
| 510 | CONFIGFS_ATTR_RO(target_stat_port_, dev); |
| 511 | CONFIGFS_ATTR_RO(target_stat_port_, indx); |
| 512 | CONFIGFS_ATTR_RO(target_stat_port_, role); |
| 513 | CONFIGFS_ATTR_RO(target_stat_port_, busy_count); |
| 514 | |
| 515 | static struct configfs_attribute *target_stat_scsi_port_attrs[] = { |
| 516 | &target_stat_port_attr_inst, |
| 517 | &target_stat_port_attr_dev, |
| 518 | &target_stat_port_attr_indx, |
| 519 | &target_stat_port_attr_role, |
| 520 | &target_stat_port_attr_busy_count, |
| 521 | NULL, |
| 522 | }; |
| 523 | |
| 524 | static struct config_item_type target_stat_scsi_port_cit = { |
| 525 | .ct_attrs = target_stat_scsi_port_attrs, |
| 526 | .ct_owner = THIS_MODULE, |
| 527 | }; |
| 528 | |
| 529 | /* |
| 530 | * SCSI Target Port Table |
| 531 | */ |
| 532 | static struct se_lun *to_stat_tgt_port(struct config_item *item) |
| 533 | { |
| 534 | struct se_port_stat_grps *pgrps = container_of(to_config_group(item), |
| 535 | struct se_port_stat_grps, scsi_tgt_port_group); |
| 536 | return container_of(pgrps, struct se_lun, port_stat_grps); |
| 537 | } |
| 538 | |
| 539 | static ssize_t target_stat_tgt_port_inst_show(struct config_item *item, |
| 540 | char *page) |
| 541 | { |
| 542 | struct se_lun *lun = to_stat_tgt_port(item); |
| 543 | struct se_device *dev; |
| 544 | ssize_t ret = -ENODEV; |
| 545 | |
| 546 | rcu_read_lock(); |
| 547 | dev = rcu_dereference(lun->lun_se_dev); |
| 548 | if (dev) |
| 549 | ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); |
| 550 | rcu_read_unlock(); |
| 551 | return ret; |
| 552 | } |
| 553 | |
| 554 | static ssize_t target_stat_tgt_port_dev_show(struct config_item *item, |
| 555 | char *page) |
| 556 | { |
| 557 | struct se_lun *lun = to_stat_tgt_port(item); |
| 558 | struct se_device *dev; |
| 559 | ssize_t ret = -ENODEV; |
| 560 | |
| 561 | rcu_read_lock(); |
| 562 | dev = rcu_dereference(lun->lun_se_dev); |
| 563 | if (dev) |
| 564 | ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); |
| 565 | rcu_read_unlock(); |
| 566 | return ret; |
| 567 | } |
| 568 | |
| 569 | static ssize_t target_stat_tgt_port_indx_show(struct config_item *item, |
| 570 | char *page) |
| 571 | { |
| 572 | struct se_lun *lun = to_stat_tgt_port(item); |
| 573 | struct se_device *dev; |
| 574 | ssize_t ret = -ENODEV; |
| 575 | |
| 576 | rcu_read_lock(); |
| 577 | dev = rcu_dereference(lun->lun_se_dev); |
| 578 | if (dev) |
| 579 | ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi); |
| 580 | rcu_read_unlock(); |
| 581 | return ret; |
| 582 | } |
| 583 | |
| 584 | static ssize_t target_stat_tgt_port_name_show(struct config_item *item, |
| 585 | char *page) |
| 586 | { |
| 587 | struct se_lun *lun = to_stat_tgt_port(item); |
| 588 | struct se_portal_group *tpg = lun->lun_tpg; |
| 589 | struct se_device *dev; |
| 590 | ssize_t ret = -ENODEV; |
| 591 | |
| 592 | rcu_read_lock(); |
| 593 | dev = rcu_dereference(lun->lun_se_dev); |
| 594 | if (dev) |
| 595 | ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n", |
| 596 | tpg->se_tpg_tfo->get_fabric_name(), |
| 597 | lun->lun_rtpi); |
| 598 | rcu_read_unlock(); |
| 599 | return ret; |
| 600 | } |
| 601 | |
| 602 | static ssize_t target_stat_tgt_port_port_index_show(struct config_item *item, |
| 603 | char *page) |
| 604 | { |
| 605 | struct se_lun *lun = to_stat_tgt_port(item); |
| 606 | struct se_portal_group *tpg = lun->lun_tpg; |
| 607 | struct se_device *dev; |
| 608 | ssize_t ret = -ENODEV; |
| 609 | |
| 610 | rcu_read_lock(); |
| 611 | dev = rcu_dereference(lun->lun_se_dev); |
| 612 | if (dev) |
| 613 | ret = snprintf(page, PAGE_SIZE, "%s%s%d\n", |
| 614 | tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+", |
| 615 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
| 616 | rcu_read_unlock(); |
| 617 | return ret; |
| 618 | } |
| 619 | |
| 620 | static ssize_t target_stat_tgt_port_in_cmds_show(struct config_item *item, |
| 621 | char *page) |
| 622 | { |
| 623 | struct se_lun *lun = to_stat_tgt_port(item); |
| 624 | struct se_device *dev; |
| 625 | ssize_t ret = -ENODEV; |
| 626 | |
| 627 | rcu_read_lock(); |
| 628 | dev = rcu_dereference(lun->lun_se_dev); |
| 629 | if (dev) |
| 630 | ret = snprintf(page, PAGE_SIZE, "%lu\n", |
| 631 | atomic_long_read(&lun->lun_stats.cmd_pdus)); |
| 632 | rcu_read_unlock(); |
| 633 | return ret; |
| 634 | } |
| 635 | |
| 636 | static ssize_t target_stat_tgt_port_write_mbytes_show(struct config_item *item, |
| 637 | char *page) |
| 638 | { |
| 639 | struct se_lun *lun = to_stat_tgt_port(item); |
| 640 | struct se_device *dev; |
| 641 | ssize_t ret = -ENODEV; |
| 642 | |
| 643 | rcu_read_lock(); |
| 644 | dev = rcu_dereference(lun->lun_se_dev); |
| 645 | if (dev) |
| 646 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 647 | (u32)(atomic_long_read(&lun->lun_stats.rx_data_octets) >> 20)); |
| 648 | rcu_read_unlock(); |
| 649 | return ret; |
| 650 | } |
| 651 | |
| 652 | static ssize_t target_stat_tgt_port_read_mbytes_show(struct config_item *item, |
| 653 | char *page) |
| 654 | { |
| 655 | struct se_lun *lun = to_stat_tgt_port(item); |
| 656 | struct se_device *dev; |
| 657 | ssize_t ret = -ENODEV; |
| 658 | |
| 659 | rcu_read_lock(); |
| 660 | dev = rcu_dereference(lun->lun_se_dev); |
| 661 | if (dev) |
| 662 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 663 | (u32)(atomic_long_read(&lun->lun_stats.tx_data_octets) >> 20)); |
| 664 | rcu_read_unlock(); |
| 665 | return ret; |
| 666 | } |
| 667 | |
| 668 | static ssize_t target_stat_tgt_port_hs_in_cmds_show(struct config_item *item, |
| 669 | char *page) |
| 670 | { |
| 671 | struct se_lun *lun = to_stat_tgt_port(item); |
| 672 | struct se_device *dev; |
| 673 | ssize_t ret = -ENODEV; |
| 674 | |
| 675 | rcu_read_lock(); |
| 676 | dev = rcu_dereference(lun->lun_se_dev); |
| 677 | if (dev) { |
| 678 | /* FIXME: scsiTgtPortHsInCommands */ |
| 679 | ret = snprintf(page, PAGE_SIZE, "%u\n", 0); |
| 680 | } |
| 681 | rcu_read_unlock(); |
| 682 | return ret; |
| 683 | } |
| 684 | |
| 685 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, inst); |
| 686 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, dev); |
| 687 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, indx); |
| 688 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, name); |
| 689 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, port_index); |
| 690 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, in_cmds); |
| 691 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, write_mbytes); |
| 692 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, read_mbytes); |
| 693 | CONFIGFS_ATTR_RO(target_stat_tgt_port_, hs_in_cmds); |
| 694 | |
| 695 | static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = { |
| 696 | &target_stat_tgt_port_attr_inst, |
| 697 | &target_stat_tgt_port_attr_dev, |
| 698 | &target_stat_tgt_port_attr_indx, |
| 699 | &target_stat_tgt_port_attr_name, |
| 700 | &target_stat_tgt_port_attr_port_index, |
| 701 | &target_stat_tgt_port_attr_in_cmds, |
| 702 | &target_stat_tgt_port_attr_write_mbytes, |
| 703 | &target_stat_tgt_port_attr_read_mbytes, |
| 704 | &target_stat_tgt_port_attr_hs_in_cmds, |
| 705 | NULL, |
| 706 | }; |
| 707 | |
| 708 | static struct config_item_type target_stat_scsi_tgt_port_cit = { |
| 709 | .ct_attrs = target_stat_scsi_tgt_port_attrs, |
| 710 | .ct_owner = THIS_MODULE, |
| 711 | }; |
| 712 | |
| 713 | /* |
| 714 | * SCSI Transport Table |
| 715 | */ |
| 716 | static struct se_lun *to_transport_stat(struct config_item *item) |
| 717 | { |
| 718 | struct se_port_stat_grps *pgrps = container_of(to_config_group(item), |
| 719 | struct se_port_stat_grps, scsi_transport_group); |
| 720 | return container_of(pgrps, struct se_lun, port_stat_grps); |
| 721 | } |
| 722 | |
| 723 | static ssize_t target_stat_transport_inst_show(struct config_item *item, |
| 724 | char *page) |
| 725 | { |
| 726 | struct se_lun *lun = to_transport_stat(item); |
| 727 | struct se_device *dev; |
| 728 | ssize_t ret = -ENODEV; |
| 729 | |
| 730 | rcu_read_lock(); |
| 731 | dev = rcu_dereference(lun->lun_se_dev); |
| 732 | if (dev) |
| 733 | ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); |
| 734 | rcu_read_unlock(); |
| 735 | return ret; |
| 736 | } |
| 737 | |
| 738 | static ssize_t target_stat_transport_device_show(struct config_item *item, |
| 739 | char *page) |
| 740 | { |
| 741 | struct se_lun *lun = to_transport_stat(item); |
| 742 | struct se_device *dev; |
| 743 | struct se_portal_group *tpg = lun->lun_tpg; |
| 744 | ssize_t ret = -ENODEV; |
| 745 | |
| 746 | rcu_read_lock(); |
| 747 | dev = rcu_dereference(lun->lun_se_dev); |
| 748 | if (dev) { |
| 749 | /* scsiTransportType */ |
| 750 | ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n", |
| 751 | tpg->se_tpg_tfo->get_fabric_name()); |
| 752 | } |
| 753 | rcu_read_unlock(); |
| 754 | return ret; |
| 755 | } |
| 756 | |
| 757 | static ssize_t target_stat_transport_indx_show(struct config_item *item, |
| 758 | char *page) |
| 759 | { |
| 760 | struct se_lun *lun = to_transport_stat(item); |
| 761 | struct se_device *dev; |
| 762 | struct se_portal_group *tpg = lun->lun_tpg; |
| 763 | ssize_t ret = -ENODEV; |
| 764 | |
| 765 | rcu_read_lock(); |
| 766 | dev = rcu_dereference(lun->lun_se_dev); |
| 767 | if (dev) |
| 768 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 769 | tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); |
| 770 | rcu_read_unlock(); |
| 771 | return ret; |
| 772 | } |
| 773 | |
| 774 | static ssize_t target_stat_transport_dev_name_show(struct config_item *item, |
| 775 | char *page) |
| 776 | { |
| 777 | struct se_lun *lun = to_transport_stat(item); |
| 778 | struct se_device *dev; |
| 779 | struct se_portal_group *tpg = lun->lun_tpg; |
| 780 | struct t10_wwn *wwn; |
| 781 | ssize_t ret = -ENODEV; |
| 782 | |
| 783 | rcu_read_lock(); |
| 784 | dev = rcu_dereference(lun->lun_se_dev); |
| 785 | if (dev) { |
| 786 | wwn = &dev->t10_wwn; |
| 787 | /* scsiTransportDevName */ |
| 788 | ret = snprintf(page, PAGE_SIZE, "%s+%s\n", |
| 789 | tpg->se_tpg_tfo->tpg_get_wwn(tpg), |
| 790 | (strlen(wwn->unit_serial)) ? wwn->unit_serial : |
| 791 | wwn->vendor); |
| 792 | } |
| 793 | rcu_read_unlock(); |
| 794 | return ret; |
| 795 | } |
| 796 | |
| 797 | CONFIGFS_ATTR_RO(target_stat_transport_, inst); |
| 798 | CONFIGFS_ATTR_RO(target_stat_transport_, device); |
| 799 | CONFIGFS_ATTR_RO(target_stat_transport_, indx); |
| 800 | CONFIGFS_ATTR_RO(target_stat_transport_, dev_name); |
| 801 | |
| 802 | static struct configfs_attribute *target_stat_scsi_transport_attrs[] = { |
| 803 | &target_stat_transport_attr_inst, |
| 804 | &target_stat_transport_attr_device, |
| 805 | &target_stat_transport_attr_indx, |
| 806 | &target_stat_transport_attr_dev_name, |
| 807 | NULL, |
| 808 | }; |
| 809 | |
| 810 | static struct config_item_type target_stat_scsi_transport_cit = { |
| 811 | .ct_attrs = target_stat_scsi_transport_attrs, |
| 812 | .ct_owner = THIS_MODULE, |
| 813 | }; |
| 814 | |
| 815 | /* |
| 816 | * Called from target_core_fabric_configfs.c:target_fabric_make_lun() to setup |
| 817 | * the target port statistics groups + configfs CITs located in target_core_stat.c |
| 818 | */ |
| 819 | void target_stat_setup_port_default_groups(struct se_lun *lun) |
| 820 | { |
| 821 | struct config_group *port_stat_grp = &lun->port_stat_grps.stat_group; |
| 822 | |
| 823 | config_group_init_type_name(&lun->port_stat_grps.scsi_port_group, |
| 824 | "scsi_port", &target_stat_scsi_port_cit); |
| 825 | config_group_init_type_name(&lun->port_stat_grps.scsi_tgt_port_group, |
| 826 | "scsi_tgt_port", &target_stat_scsi_tgt_port_cit); |
| 827 | config_group_init_type_name(&lun->port_stat_grps.scsi_transport_group, |
| 828 | "scsi_transport", &target_stat_scsi_transport_cit); |
| 829 | |
| 830 | port_stat_grp->default_groups[0] = &lun->port_stat_grps.scsi_port_group; |
| 831 | port_stat_grp->default_groups[1] = &lun->port_stat_grps.scsi_tgt_port_group; |
| 832 | port_stat_grp->default_groups[2] = &lun->port_stat_grps.scsi_transport_group; |
| 833 | port_stat_grp->default_groups[3] = NULL; |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * SCSI Authorized Initiator Table |
| 838 | */ |
| 839 | |
| 840 | static struct se_lun_acl *auth_to_lacl(struct config_item *item) |
| 841 | { |
| 842 | struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), |
| 843 | struct se_ml_stat_grps, scsi_auth_intr_group); |
| 844 | return container_of(lgrps, struct se_lun_acl, ml_stat_grps); |
| 845 | } |
| 846 | |
| 847 | static ssize_t target_stat_auth_inst_show(struct config_item *item, |
| 848 | char *page) |
| 849 | { |
| 850 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 851 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 852 | struct se_dev_entry *deve; |
| 853 | struct se_portal_group *tpg; |
| 854 | ssize_t ret; |
| 855 | |
| 856 | rcu_read_lock(); |
| 857 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 858 | if (!deve) { |
| 859 | rcu_read_unlock(); |
| 860 | return -ENODEV; |
| 861 | } |
| 862 | tpg = nacl->se_tpg; |
| 863 | /* scsiInstIndex */ |
| 864 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 865 | tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); |
| 866 | rcu_read_unlock(); |
| 867 | return ret; |
| 868 | } |
| 869 | |
| 870 | static ssize_t target_stat_auth_dev_show(struct config_item *item, |
| 871 | char *page) |
| 872 | { |
| 873 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 874 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 875 | struct se_dev_entry *deve; |
| 876 | struct se_lun *lun; |
| 877 | ssize_t ret; |
| 878 | |
| 879 | rcu_read_lock(); |
| 880 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 881 | if (!deve) { |
| 882 | rcu_read_unlock(); |
| 883 | return -ENODEV; |
| 884 | } |
| 885 | lun = rcu_dereference(deve->se_lun); |
| 886 | /* scsiDeviceIndex */ |
| 887 | ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index); |
| 888 | rcu_read_unlock(); |
| 889 | return ret; |
| 890 | } |
| 891 | |
| 892 | static ssize_t target_stat_auth_port_show(struct config_item *item, |
| 893 | char *page) |
| 894 | { |
| 895 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 896 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 897 | struct se_dev_entry *deve; |
| 898 | struct se_portal_group *tpg; |
| 899 | ssize_t ret; |
| 900 | |
| 901 | rcu_read_lock(); |
| 902 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 903 | if (!deve) { |
| 904 | rcu_read_unlock(); |
| 905 | return -ENODEV; |
| 906 | } |
| 907 | tpg = nacl->se_tpg; |
| 908 | /* scsiAuthIntrTgtPortIndex */ |
| 909 | ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
| 910 | rcu_read_unlock(); |
| 911 | return ret; |
| 912 | } |
| 913 | |
| 914 | static ssize_t target_stat_auth_indx_show(struct config_item *item, |
| 915 | char *page) |
| 916 | { |
| 917 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 918 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 919 | struct se_dev_entry *deve; |
| 920 | ssize_t ret; |
| 921 | |
| 922 | rcu_read_lock(); |
| 923 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 924 | if (!deve) { |
| 925 | rcu_read_unlock(); |
| 926 | return -ENODEV; |
| 927 | } |
| 928 | /* scsiAuthIntrIndex */ |
| 929 | ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); |
| 930 | rcu_read_unlock(); |
| 931 | return ret; |
| 932 | } |
| 933 | |
| 934 | static ssize_t target_stat_auth_dev_or_port_show(struct config_item *item, |
| 935 | char *page) |
| 936 | { |
| 937 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 938 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 939 | struct se_dev_entry *deve; |
| 940 | ssize_t ret; |
| 941 | |
| 942 | rcu_read_lock(); |
| 943 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 944 | if (!deve) { |
| 945 | rcu_read_unlock(); |
| 946 | return -ENODEV; |
| 947 | } |
| 948 | /* scsiAuthIntrDevOrPort */ |
| 949 | ret = snprintf(page, PAGE_SIZE, "%u\n", 1); |
| 950 | rcu_read_unlock(); |
| 951 | return ret; |
| 952 | } |
| 953 | |
| 954 | static ssize_t target_stat_auth_intr_name_show(struct config_item *item, |
| 955 | char *page) |
| 956 | { |
| 957 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 958 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 959 | struct se_dev_entry *deve; |
| 960 | ssize_t ret; |
| 961 | |
| 962 | rcu_read_lock(); |
| 963 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 964 | if (!deve) { |
| 965 | rcu_read_unlock(); |
| 966 | return -ENODEV; |
| 967 | } |
| 968 | /* scsiAuthIntrName */ |
| 969 | ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname); |
| 970 | rcu_read_unlock(); |
| 971 | return ret; |
| 972 | } |
| 973 | |
| 974 | static ssize_t target_stat_auth_map_indx_show(struct config_item *item, |
| 975 | char *page) |
| 976 | { |
| 977 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 978 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 979 | struct se_dev_entry *deve; |
| 980 | ssize_t ret; |
| 981 | |
| 982 | rcu_read_lock(); |
| 983 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 984 | if (!deve) { |
| 985 | rcu_read_unlock(); |
| 986 | return -ENODEV; |
| 987 | } |
| 988 | /* FIXME: scsiAuthIntrLunMapIndex */ |
| 989 | ret = snprintf(page, PAGE_SIZE, "%u\n", 0); |
| 990 | rcu_read_unlock(); |
| 991 | return ret; |
| 992 | } |
| 993 | |
| 994 | static ssize_t target_stat_auth_att_count_show(struct config_item *item, |
| 995 | char *page) |
| 996 | { |
| 997 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 998 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 999 | struct se_dev_entry *deve; |
| 1000 | ssize_t ret; |
| 1001 | |
| 1002 | rcu_read_lock(); |
| 1003 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1004 | if (!deve) { |
| 1005 | rcu_read_unlock(); |
| 1006 | return -ENODEV; |
| 1007 | } |
| 1008 | /* scsiAuthIntrAttachedTimes */ |
| 1009 | ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count); |
| 1010 | rcu_read_unlock(); |
| 1011 | return ret; |
| 1012 | } |
| 1013 | |
| 1014 | static ssize_t target_stat_auth_num_cmds_show(struct config_item *item, |
| 1015 | char *page) |
| 1016 | { |
| 1017 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 1018 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1019 | struct se_dev_entry *deve; |
| 1020 | ssize_t ret; |
| 1021 | |
| 1022 | rcu_read_lock(); |
| 1023 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1024 | if (!deve) { |
| 1025 | rcu_read_unlock(); |
| 1026 | return -ENODEV; |
| 1027 | } |
| 1028 | /* scsiAuthIntrOutCommands */ |
| 1029 | ret = snprintf(page, PAGE_SIZE, "%lu\n", |
| 1030 | atomic_long_read(&deve->total_cmds)); |
| 1031 | rcu_read_unlock(); |
| 1032 | return ret; |
| 1033 | } |
| 1034 | |
| 1035 | static ssize_t target_stat_auth_read_mbytes_show(struct config_item *item, |
| 1036 | char *page) |
| 1037 | { |
| 1038 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 1039 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1040 | struct se_dev_entry *deve; |
| 1041 | ssize_t ret; |
| 1042 | |
| 1043 | rcu_read_lock(); |
| 1044 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1045 | if (!deve) { |
| 1046 | rcu_read_unlock(); |
| 1047 | return -ENODEV; |
| 1048 | } |
| 1049 | /* scsiAuthIntrReadMegaBytes */ |
| 1050 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 1051 | (u32)(atomic_long_read(&deve->read_bytes) >> 20)); |
| 1052 | rcu_read_unlock(); |
| 1053 | return ret; |
| 1054 | } |
| 1055 | |
| 1056 | static ssize_t target_stat_auth_write_mbytes_show(struct config_item *item, |
| 1057 | char *page) |
| 1058 | { |
| 1059 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 1060 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1061 | struct se_dev_entry *deve; |
| 1062 | ssize_t ret; |
| 1063 | |
| 1064 | rcu_read_lock(); |
| 1065 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1066 | if (!deve) { |
| 1067 | rcu_read_unlock(); |
| 1068 | return -ENODEV; |
| 1069 | } |
| 1070 | /* scsiAuthIntrWrittenMegaBytes */ |
| 1071 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 1072 | (u32)(atomic_long_read(&deve->write_bytes) >> 20)); |
| 1073 | rcu_read_unlock(); |
| 1074 | return ret; |
| 1075 | } |
| 1076 | |
| 1077 | static ssize_t target_stat_auth_hs_num_cmds_show(struct config_item *item, |
| 1078 | char *page) |
| 1079 | { |
| 1080 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 1081 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1082 | struct se_dev_entry *deve; |
| 1083 | ssize_t ret; |
| 1084 | |
| 1085 | rcu_read_lock(); |
| 1086 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1087 | if (!deve) { |
| 1088 | rcu_read_unlock(); |
| 1089 | return -ENODEV; |
| 1090 | } |
| 1091 | /* FIXME: scsiAuthIntrHSOutCommands */ |
| 1092 | ret = snprintf(page, PAGE_SIZE, "%u\n", 0); |
| 1093 | rcu_read_unlock(); |
| 1094 | return ret; |
| 1095 | } |
| 1096 | |
| 1097 | static ssize_t target_stat_auth_creation_time_show(struct config_item *item, |
| 1098 | char *page) |
| 1099 | { |
| 1100 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 1101 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1102 | struct se_dev_entry *deve; |
| 1103 | ssize_t ret; |
| 1104 | |
| 1105 | rcu_read_lock(); |
| 1106 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1107 | if (!deve) { |
| 1108 | rcu_read_unlock(); |
| 1109 | return -ENODEV; |
| 1110 | } |
| 1111 | /* scsiAuthIntrLastCreation */ |
| 1112 | ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time - |
| 1113 | INITIAL_JIFFIES) * 100 / HZ)); |
| 1114 | rcu_read_unlock(); |
| 1115 | return ret; |
| 1116 | } |
| 1117 | |
| 1118 | static ssize_t target_stat_auth_row_status_show(struct config_item *item, |
| 1119 | char *page) |
| 1120 | { |
| 1121 | struct se_lun_acl *lacl = auth_to_lacl(item); |
| 1122 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1123 | struct se_dev_entry *deve; |
| 1124 | ssize_t ret; |
| 1125 | |
| 1126 | rcu_read_lock(); |
| 1127 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1128 | if (!deve) { |
| 1129 | rcu_read_unlock(); |
| 1130 | return -ENODEV; |
| 1131 | } |
| 1132 | /* FIXME: scsiAuthIntrRowStatus */ |
| 1133 | ret = snprintf(page, PAGE_SIZE, "Ready\n"); |
| 1134 | rcu_read_unlock(); |
| 1135 | return ret; |
| 1136 | } |
| 1137 | |
| 1138 | CONFIGFS_ATTR_RO(target_stat_auth_, inst); |
| 1139 | CONFIGFS_ATTR_RO(target_stat_auth_, dev); |
| 1140 | CONFIGFS_ATTR_RO(target_stat_auth_, port); |
| 1141 | CONFIGFS_ATTR_RO(target_stat_auth_, indx); |
| 1142 | CONFIGFS_ATTR_RO(target_stat_auth_, dev_or_port); |
| 1143 | CONFIGFS_ATTR_RO(target_stat_auth_, intr_name); |
| 1144 | CONFIGFS_ATTR_RO(target_stat_auth_, map_indx); |
| 1145 | CONFIGFS_ATTR_RO(target_stat_auth_, att_count); |
| 1146 | CONFIGFS_ATTR_RO(target_stat_auth_, num_cmds); |
| 1147 | CONFIGFS_ATTR_RO(target_stat_auth_, read_mbytes); |
| 1148 | CONFIGFS_ATTR_RO(target_stat_auth_, write_mbytes); |
| 1149 | CONFIGFS_ATTR_RO(target_stat_auth_, hs_num_cmds); |
| 1150 | CONFIGFS_ATTR_RO(target_stat_auth_, creation_time); |
| 1151 | CONFIGFS_ATTR_RO(target_stat_auth_, row_status); |
| 1152 | |
| 1153 | static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = { |
| 1154 | &target_stat_auth_attr_inst, |
| 1155 | &target_stat_auth_attr_dev, |
| 1156 | &target_stat_auth_attr_port, |
| 1157 | &target_stat_auth_attr_indx, |
| 1158 | &target_stat_auth_attr_dev_or_port, |
| 1159 | &target_stat_auth_attr_intr_name, |
| 1160 | &target_stat_auth_attr_map_indx, |
| 1161 | &target_stat_auth_attr_att_count, |
| 1162 | &target_stat_auth_attr_num_cmds, |
| 1163 | &target_stat_auth_attr_read_mbytes, |
| 1164 | &target_stat_auth_attr_write_mbytes, |
| 1165 | &target_stat_auth_attr_hs_num_cmds, |
| 1166 | &target_stat_auth_attr_creation_time, |
| 1167 | &target_stat_auth_attr_row_status, |
| 1168 | NULL, |
| 1169 | }; |
| 1170 | |
| 1171 | static struct config_item_type target_stat_scsi_auth_intr_cit = { |
| 1172 | .ct_attrs = target_stat_scsi_auth_intr_attrs, |
| 1173 | .ct_owner = THIS_MODULE, |
| 1174 | }; |
| 1175 | |
| 1176 | /* |
| 1177 | * SCSI Attached Initiator Port Table |
| 1178 | */ |
| 1179 | |
| 1180 | static struct se_lun_acl *iport_to_lacl(struct config_item *item) |
| 1181 | { |
| 1182 | struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), |
| 1183 | struct se_ml_stat_grps, scsi_att_intr_port_group); |
| 1184 | return container_of(lgrps, struct se_lun_acl, ml_stat_grps); |
| 1185 | } |
| 1186 | |
| 1187 | static ssize_t target_stat_iport_inst_show(struct config_item *item, |
| 1188 | char *page) |
| 1189 | { |
| 1190 | struct se_lun_acl *lacl = iport_to_lacl(item); |
| 1191 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1192 | struct se_dev_entry *deve; |
| 1193 | struct se_portal_group *tpg; |
| 1194 | ssize_t ret; |
| 1195 | |
| 1196 | rcu_read_lock(); |
| 1197 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1198 | if (!deve) { |
| 1199 | rcu_read_unlock(); |
| 1200 | return -ENODEV; |
| 1201 | } |
| 1202 | tpg = nacl->se_tpg; |
| 1203 | /* scsiInstIndex */ |
| 1204 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 1205 | tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); |
| 1206 | rcu_read_unlock(); |
| 1207 | return ret; |
| 1208 | } |
| 1209 | |
| 1210 | static ssize_t target_stat_iport_dev_show(struct config_item *item, |
| 1211 | char *page) |
| 1212 | { |
| 1213 | struct se_lun_acl *lacl = iport_to_lacl(item); |
| 1214 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1215 | struct se_dev_entry *deve; |
| 1216 | struct se_lun *lun; |
| 1217 | ssize_t ret; |
| 1218 | |
| 1219 | rcu_read_lock(); |
| 1220 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1221 | if (!deve) { |
| 1222 | rcu_read_unlock(); |
| 1223 | return -ENODEV; |
| 1224 | } |
| 1225 | lun = rcu_dereference(deve->se_lun); |
| 1226 | /* scsiDeviceIndex */ |
| 1227 | ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index); |
| 1228 | rcu_read_unlock(); |
| 1229 | return ret; |
| 1230 | } |
| 1231 | |
| 1232 | static ssize_t target_stat_iport_port_show(struct config_item *item, |
| 1233 | char *page) |
| 1234 | { |
| 1235 | struct se_lun_acl *lacl = iport_to_lacl(item); |
| 1236 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1237 | struct se_dev_entry *deve; |
| 1238 | struct se_portal_group *tpg; |
| 1239 | ssize_t ret; |
| 1240 | |
| 1241 | rcu_read_lock(); |
| 1242 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1243 | if (!deve) { |
| 1244 | rcu_read_unlock(); |
| 1245 | return -ENODEV; |
| 1246 | } |
| 1247 | tpg = nacl->se_tpg; |
| 1248 | /* scsiPortIndex */ |
| 1249 | ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
| 1250 | rcu_read_unlock(); |
| 1251 | return ret; |
| 1252 | } |
| 1253 | |
| 1254 | static ssize_t target_stat_iport_indx_show(struct config_item *item, |
| 1255 | char *page) |
| 1256 | { |
| 1257 | struct se_lun_acl *lacl = iport_to_lacl(item); |
| 1258 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1259 | struct se_session *se_sess; |
| 1260 | struct se_portal_group *tpg; |
| 1261 | ssize_t ret; |
| 1262 | |
| 1263 | spin_lock_irq(&nacl->nacl_sess_lock); |
| 1264 | se_sess = nacl->nacl_sess; |
| 1265 | if (!se_sess) { |
| 1266 | spin_unlock_irq(&nacl->nacl_sess_lock); |
| 1267 | return -ENODEV; |
| 1268 | } |
| 1269 | |
| 1270 | tpg = nacl->se_tpg; |
| 1271 | /* scsiAttIntrPortIndex */ |
| 1272 | ret = snprintf(page, PAGE_SIZE, "%u\n", |
| 1273 | tpg->se_tpg_tfo->sess_get_index(se_sess)); |
| 1274 | spin_unlock_irq(&nacl->nacl_sess_lock); |
| 1275 | return ret; |
| 1276 | } |
| 1277 | |
| 1278 | static ssize_t target_stat_iport_port_auth_indx_show(struct config_item *item, |
| 1279 | char *page) |
| 1280 | { |
| 1281 | struct se_lun_acl *lacl = iport_to_lacl(item); |
| 1282 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1283 | struct se_dev_entry *deve; |
| 1284 | ssize_t ret; |
| 1285 | |
| 1286 | rcu_read_lock(); |
| 1287 | deve = target_nacl_find_deve(nacl, lacl->mapped_lun); |
| 1288 | if (!deve) { |
| 1289 | rcu_read_unlock(); |
| 1290 | return -ENODEV; |
| 1291 | } |
| 1292 | /* scsiAttIntrPortAuthIntrIdx */ |
| 1293 | ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); |
| 1294 | rcu_read_unlock(); |
| 1295 | return ret; |
| 1296 | } |
| 1297 | |
| 1298 | static ssize_t target_stat_iport_port_ident_show(struct config_item *item, |
| 1299 | char *page) |
| 1300 | { |
| 1301 | struct se_lun_acl *lacl = iport_to_lacl(item); |
| 1302 | struct se_node_acl *nacl = lacl->se_lun_nacl; |
| 1303 | struct se_session *se_sess; |
| 1304 | struct se_portal_group *tpg; |
| 1305 | ssize_t ret; |
| 1306 | unsigned char buf[64]; |
| 1307 | |
| 1308 | spin_lock_irq(&nacl->nacl_sess_lock); |
| 1309 | se_sess = nacl->nacl_sess; |
| 1310 | if (!se_sess) { |
| 1311 | spin_unlock_irq(&nacl->nacl_sess_lock); |
| 1312 | return -ENODEV; |
| 1313 | } |
| 1314 | |
| 1315 | tpg = nacl->se_tpg; |
| 1316 | /* scsiAttIntrPortName+scsiAttIntrPortIdentifier */ |
| 1317 | memset(buf, 0, 64); |
| 1318 | if (tpg->se_tpg_tfo->sess_get_initiator_sid != NULL) |
| 1319 | tpg->se_tpg_tfo->sess_get_initiator_sid(se_sess, buf, 64); |
| 1320 | |
| 1321 | ret = snprintf(page, PAGE_SIZE, "%s+i+%s\n", nacl->initiatorname, buf); |
| 1322 | spin_unlock_irq(&nacl->nacl_sess_lock); |
| 1323 | return ret; |
| 1324 | } |
| 1325 | |
| 1326 | CONFIGFS_ATTR_RO(target_stat_iport_, inst); |
| 1327 | CONFIGFS_ATTR_RO(target_stat_iport_, dev); |
| 1328 | CONFIGFS_ATTR_RO(target_stat_iport_, port); |
| 1329 | CONFIGFS_ATTR_RO(target_stat_iport_, indx); |
| 1330 | CONFIGFS_ATTR_RO(target_stat_iport_, port_auth_indx); |
| 1331 | CONFIGFS_ATTR_RO(target_stat_iport_, port_ident); |
| 1332 | |
| 1333 | static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = { |
| 1334 | &target_stat_iport_attr_inst, |
| 1335 | &target_stat_iport_attr_dev, |
| 1336 | &target_stat_iport_attr_port, |
| 1337 | &target_stat_iport_attr_indx, |
| 1338 | &target_stat_iport_attr_port_auth_indx, |
| 1339 | &target_stat_iport_attr_port_ident, |
| 1340 | NULL, |
| 1341 | }; |
| 1342 | |
| 1343 | static struct config_item_type target_stat_scsi_att_intr_port_cit = { |
| 1344 | .ct_attrs = target_stat_scsi_ath_intr_port_attrs, |
| 1345 | .ct_owner = THIS_MODULE, |
| 1346 | }; |
| 1347 | |
| 1348 | /* |
| 1349 | * Called from target_core_fabric_configfs.c:target_fabric_make_mappedlun() to setup |
| 1350 | * the target MappedLUN statistics groups + configfs CITs located in target_core_stat.c |
| 1351 | */ |
| 1352 | void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *lacl) |
| 1353 | { |
| 1354 | struct config_group *ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
| 1355 | |
| 1356 | config_group_init_type_name(&lacl->ml_stat_grps.scsi_auth_intr_group, |
| 1357 | "scsi_auth_intr", &target_stat_scsi_auth_intr_cit); |
| 1358 | config_group_init_type_name(&lacl->ml_stat_grps.scsi_att_intr_port_group, |
| 1359 | "scsi_att_intr_port", &target_stat_scsi_att_intr_port_cit); |
| 1360 | |
| 1361 | ml_stat_grp->default_groups[0] = &lacl->ml_stat_grps.scsi_auth_intr_group; |
| 1362 | ml_stat_grp->default_groups[1] = &lacl->ml_stat_grps.scsi_att_intr_port_group; |
| 1363 | ml_stat_grp->default_groups[2] = NULL; |
| 1364 | } |