drivers/scsi/ufs/ufs-sysfs.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (C) 2018 Western Digital Corporation
   3
   4 #include <linux/err.h>
   5 #include <linux/string.h>
   6 #include <linux/bitfield.h>
   7 #include <asm/unaligned.h>
   8
   9 #include "ufs.h"
  10 #include "ufs-sysfs.h"
  11
  12 static const char *ufschd_uic_link_state_to_string(
  13                         enum uic_link_state state)
  14 {
  15         switch (state) {
  16         case UIC_LINK_OFF_STATE:        return "OFF";
  17         case UIC_LINK_ACTIVE_STATE:     return "ACTIVE";
  18         case UIC_LINK_HIBERN8_STATE:    return "HIBERN8";
  19         case UIC_LINK_BROKEN_STATE:     return "BROKEN";
  20         default:                        return "UNKNOWN";
  21         }
  22 }
  23
  24 static const char *ufschd_ufs_dev_pwr_mode_to_string(
  25                         enum ufs_dev_pwr_mode state)
  26 {
  27         switch (state) {
  28         case UFS_ACTIVE_PWR_MODE:       return "ACTIVE";
  29         case UFS_SLEEP_PWR_MODE:        return "SLEEP";
  30         case UFS_POWERDOWN_PWR_MODE:    return "POWERDOWN";
  31         default:                        return "UNKNOWN";
  32         }
  33 }
  34
  35 static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev,
  36                                              struct device_attribute *attr,
  37                                              const char *buf, size_t count,
  38                                              bool rpm)
  39 {
  40         struct ufs_hba *hba = dev_get_drvdata(dev);
  41         unsigned long flags, value;
  42
  43         if (kstrtoul(buf, 0, &value))
  44                 return -EINVAL;
  45
  46         if (value >= UFS_PM_LVL_MAX)
  47                 return -EINVAL;
  48
  49         spin_lock_irqsave(hba->host->host_lock, flags);
  50         if (rpm)
  51                 hba->rpm_lvl = value;
  52         else
  53                 hba->spm_lvl = value;
  54         spin_unlock_irqrestore(hba->host->host_lock, flags);
  55         return count;
  56 }
  57
  58 static ssize_t rpm_lvl_show(struct device *dev,
  59                 struct device_attribute *attr, char *buf)
  60 {
  61         struct ufs_hba *hba = dev_get_drvdata(dev);
  62
  63         return sprintf(buf, "%d\n", hba->rpm_lvl);
  64 }
  65
  66 static ssize_t rpm_lvl_store(struct device *dev,
  67                 struct device_attribute *attr, const char *buf, size_t count)
  68 {
  69         return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, true);
  70 }
  71
  72 static ssize_t rpm_target_dev_state_show(struct device *dev,
  73                 struct device_attribute *attr, char *buf)
  74 {
  75         struct ufs_hba *hba = dev_get_drvdata(dev);
  76
  77         return sprintf(buf, "%s\n", ufschd_ufs_dev_pwr_mode_to_string(
  78                         ufs_pm_lvl_states[hba->rpm_lvl].dev_state));
  79 }
  80
  81 static ssize_t rpm_target_link_state_show(struct device *dev,
  82                 struct device_attribute *attr, char *buf)
  83 {
  84         struct ufs_hba *hba = dev_get_drvdata(dev);
  85
  86         return sprintf(buf, "%s\n", ufschd_uic_link_state_to_string(
  87                         ufs_pm_lvl_states[hba->rpm_lvl].link_state));
  88 }
  89
  90 static ssize_t spm_lvl_show(struct device *dev,
  91                 struct device_attribute *attr, char *buf)
  92 {
  93         struct ufs_hba *hba = dev_get_drvdata(dev);
  94
  95         return sprintf(buf, "%d\n", hba->spm_lvl);
  96 }
  97
  98 static ssize_t spm_lvl_store(struct device *dev,
  99                 struct device_attribute *attr, const char *buf, size_t count)
 100 {
 101         return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, false);
 102 }
 103
 104 static ssize_t spm_target_dev_state_show(struct device *dev,
 105                 struct device_attribute *attr, char *buf)
 106 {
 107         struct ufs_hba *hba = dev_get_drvdata(dev);
 108
 109         return sprintf(buf, "%s\n", ufschd_ufs_dev_pwr_mode_to_string(
 110                                 ufs_pm_lvl_states[hba->spm_lvl].dev_state));
 111 }
 112
 113 static ssize_t spm_target_link_state_show(struct device *dev,
 114                 struct device_attribute *attr, char *buf)
 115 {
 116         struct ufs_hba *hba = dev_get_drvdata(dev);
 117
 118         return sprintf(buf, "%s\n", ufschd_uic_link_state_to_string(
 119                                 ufs_pm_lvl_states[hba->spm_lvl].link_state));
 120 }
 121
 122 /* Convert Auto-Hibernate Idle Timer register value to microseconds */
 123 static int ufshcd_ahit_to_us(u32 ahit)
 124 {
 125         int timer = FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, ahit);
 126         int scale = FIELD_GET(UFSHCI_AHIBERN8_SCALE_MASK, ahit);
 127
 128         for (; scale > 0; --scale)
 129                 timer *= UFSHCI_AHIBERN8_SCALE_FACTOR;
 130
 131         return timer;
 132 }
 133
 134 /* Convert microseconds to Auto-Hibernate Idle Timer register value */
 135 static u32 ufshcd_us_to_ahit(unsigned int timer)
 136 {
 137         unsigned int scale;
 138
 139         for (scale = 0; timer > UFSHCI_AHIBERN8_TIMER_MASK; ++scale)
 140                 timer /= UFSHCI_AHIBERN8_SCALE_FACTOR;
 141
 142         return FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, timer) |
 143                FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, scale);
 144 }
 145
 146 static ssize_t auto_hibern8_show(struct device *dev,
 147                                  struct device_attribute *attr, char *buf)
 148 {
 149         u32 ahit;
 150         struct ufs_hba *hba = dev_get_drvdata(dev);
 151
 152         if (!ufshcd_is_auto_hibern8_supported(hba))
 153                 return -EOPNOTSUPP;
 154
 155         pm_runtime_get_sync(hba->dev);
 156         ufshcd_hold(hba, false);
 157         ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER);
 158         ufshcd_release(hba);
 159         pm_runtime_put_sync(hba->dev);
 160
 161         return scnprintf(buf, PAGE_SIZE, "%d\n", ufshcd_ahit_to_us(ahit));
 162 }
 163
 164 static ssize_t auto_hibern8_store(struct device *dev,
 165                                   struct device_attribute *attr,
 166                                   const char *buf, size_t count)
 167 {
 168         struct ufs_hba *hba = dev_get_drvdata(dev);
 169         unsigned int timer;
 170
 171         if (!ufshcd_is_auto_hibern8_supported(hba))
 172                 return -EOPNOTSUPP;
 173
 174         if (kstrtouint(buf, 0, &timer))
 175                 return -EINVAL;
 176
 177         if (timer > UFSHCI_AHIBERN8_MAX)
 178                 return -EINVAL;
 179
 180         ufshcd_auto_hibern8_update(hba, ufshcd_us_to_ahit(timer));
 181
 182         return count;
 183 }
 184
 185 static DEVICE_ATTR_RW(rpm_lvl);
 186 static DEVICE_ATTR_RO(rpm_target_dev_state);
 187 static DEVICE_ATTR_RO(rpm_target_link_state);
 188 static DEVICE_ATTR_RW(spm_lvl);
 189 static DEVICE_ATTR_RO(spm_target_dev_state);
 190 static DEVICE_ATTR_RO(spm_target_link_state);
 191 static DEVICE_ATTR_RW(auto_hibern8);
 192
 193 static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
 194         &dev_attr_rpm_lvl.attr,
 195         &dev_attr_rpm_target_dev_state.attr,
 196         &dev_attr_rpm_target_link_state.attr,
 197         &dev_attr_spm_lvl.attr,
 198         &dev_attr_spm_target_dev_state.attr,
 199         &dev_attr_spm_target_link_state.attr,
 200         &dev_attr_auto_hibern8.attr,
 201         NULL
 202 };
 203
 204 static const struct attribute_group ufs_sysfs_default_group = {
 205         .attrs = ufs_sysfs_ufshcd_attrs,
 206 };
 207
 208 static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
 209                                   enum desc_idn desc_id,
 210                                   u8 desc_index,
 211                                   u8 param_offset,
 212                                   u8 *sysfs_buf,
 213                                   u8 param_size)
 214 {
 215         u8 desc_buf[8] = {0};
 216         int ret;
 217
 218         if (param_size > 8)
 219                 return -EINVAL;
 220
 221         pm_runtime_get_sync(hba->dev);
 222         ret = ufshcd_read_desc_param(hba, desc_id, desc_index,
 223                                 param_offset, desc_buf, param_size);
 224         pm_runtime_put_sync(hba->dev);
 225         if (ret)
 226                 return -EINVAL;
 227         switch (param_size) {
 228         case 1:
 229                 ret = sprintf(sysfs_buf, "0x%02X\n", *desc_buf);
 230                 break;
 231         case 2:
 232                 ret = sprintf(sysfs_buf, "0x%04X\n",
 233                         get_unaligned_be16(desc_buf));
 234                 break;
 235         case 4:
 236                 ret = sprintf(sysfs_buf, "0x%08X\n",
 237                         get_unaligned_be32(desc_buf));
 238                 break;
 239         case 8:
 240                 ret = sprintf(sysfs_buf, "0x%016llX\n",
 241                         get_unaligned_be64(desc_buf));
 242                 break;
 243         }
 244
 245         return ret;
 246 }
 247
 248 #define UFS_DESC_PARAM(_name, _puname, _duname, _size)                  \
 249 static ssize_t _name##_show(struct device *dev,                         \
 250         struct device_attribute *attr, char *buf)                       \
 251 {                                                                       \
 252         struct ufs_hba *hba = dev_get_drvdata(dev);                     \
 253         return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \
 254                 0, _duname##_DESC_PARAM##_puname, buf, _size);          \
 255 }                                                                       \
 256 static DEVICE_ATTR_RO(_name)
 257
 258 #define UFS_DEVICE_DESC_PARAM(_name, _uname, _size)                     \
 259         UFS_DESC_PARAM(_name, _uname, DEVICE, _size)
 260
 261 UFS_DEVICE_DESC_PARAM(device_type, _DEVICE_TYPE, 1);
 262 UFS_DEVICE_DESC_PARAM(device_class, _DEVICE_CLASS, 1);
 263 UFS_DEVICE_DESC_PARAM(device_sub_class, _DEVICE_SUB_CLASS, 1);
 264 UFS_DEVICE_DESC_PARAM(protocol, _PRTCL, 1);
 265 UFS_DEVICE_DESC_PARAM(number_of_luns, _NUM_LU, 1);
 266 UFS_DEVICE_DESC_PARAM(number_of_wluns, _NUM_WLU, 1);
 267 UFS_DEVICE_DESC_PARAM(boot_enable, _BOOT_ENBL, 1);
 268 UFS_DEVICE_DESC_PARAM(descriptor_access_enable, _DESC_ACCSS_ENBL, 1);
 269 UFS_DEVICE_DESC_PARAM(initial_power_mode, _INIT_PWR_MODE, 1);
 270 UFS_DEVICE_DESC_PARAM(high_priority_lun, _HIGH_PR_LUN, 1);
 271 UFS_DEVICE_DESC_PARAM(secure_removal_type, _SEC_RMV_TYPE, 1);
 272 UFS_DEVICE_DESC_PARAM(support_security_lun, _SEC_LU, 1);
 273 UFS_DEVICE_DESC_PARAM(bkops_termination_latency, _BKOP_TERM_LT, 1);
 274 UFS_DEVICE_DESC_PARAM(initial_active_icc_level, _ACTVE_ICC_LVL, 1);
 275 UFS_DEVICE_DESC_PARAM(specification_version, _SPEC_VER, 2);
 276 UFS_DEVICE_DESC_PARAM(manufacturing_date, _MANF_DATE, 2);
 277 UFS_DEVICE_DESC_PARAM(manufacturer_id, _MANF_ID, 2);
 278 UFS_DEVICE_DESC_PARAM(rtt_capability, _RTT_CAP, 1);
 279 UFS_DEVICE_DESC_PARAM(rtc_update, _FRQ_RTC, 2);
 280 UFS_DEVICE_DESC_PARAM(ufs_features, _UFS_FEAT, 1);
 281 UFS_DEVICE_DESC_PARAM(ffu_timeout, _FFU_TMT, 1);
 282 UFS_DEVICE_DESC_PARAM(queue_depth, _Q_DPTH, 1);
 283 UFS_DEVICE_DESC_PARAM(device_version, _DEV_VER, 2);
 284 UFS_DEVICE_DESC_PARAM(number_of_secure_wpa, _NUM_SEC_WPA, 1);
 285 UFS_DEVICE_DESC_PARAM(psa_max_data_size, _PSA_MAX_DATA, 4);
 286 UFS_DEVICE_DESC_PARAM(psa_state_timeout, _PSA_TMT, 1);
 287 UFS_DEVICE_DESC_PARAM(ext_feature_sup, _EXT_UFS_FEATURE_SUP, 4);
 288 UFS_DEVICE_DESC_PARAM(wb_presv_us_en, _WB_PRESRV_USRSPC_EN, 1);
 289 UFS_DEVICE_DESC_PARAM(wb_type, _WB_TYPE, 1);
 290 UFS_DEVICE_DESC_PARAM(wb_shared_alloc_units, _WB_SHARED_ALLOC_UNITS, 4);
 291
 292 static struct attribute *ufs_sysfs_device_descriptor[] = {
 293         &dev_attr_device_type.attr,
 294         &dev_attr_device_class.attr,
 295         &dev_attr_device_sub_class.attr,
 296         &dev_attr_protocol.attr,
 297         &dev_attr_number_of_luns.attr,
 298         &dev_attr_number_of_wluns.attr,
 299         &dev_attr_boot_enable.attr,
 300         &dev_attr_descriptor_access_enable.attr,
 301         &dev_attr_initial_power_mode.attr,
 302         &dev_attr_high_priority_lun.attr,
 303         &dev_attr_secure_removal_type.attr,
 304         &dev_attr_support_security_lun.attr,
 305         &dev_attr_bkops_termination_latency.attr,
 306         &dev_attr_initial_active_icc_level.attr,
 307         &dev_attr_specification_version.attr,
 308         &dev_attr_manufacturing_date.attr,
 309         &dev_attr_manufacturer_id.attr,
 310         &dev_attr_rtt_capability.attr,
 311         &dev_attr_rtc_update.attr,
 312         &dev_attr_ufs_features.attr,
 313         &dev_attr_ffu_timeout.attr,
 314         &dev_attr_queue_depth.attr,
 315         &dev_attr_device_version.attr,
 316         &dev_attr_number_of_secure_wpa.attr,
 317         &dev_attr_psa_max_data_size.attr,
 318         &dev_attr_psa_state_timeout.attr,
 319         &dev_attr_ext_feature_sup.attr,
 320         &dev_attr_wb_presv_us_en.attr,
 321         &dev_attr_wb_type.attr,
 322         &dev_attr_wb_shared_alloc_units.attr,
 323         NULL,
 324 };
 325
 326 static const struct attribute_group ufs_sysfs_device_descriptor_group = {
 327         .name = "device_descriptor",
 328         .attrs = ufs_sysfs_device_descriptor,
 329 };
 330
 331 #define UFS_INTERCONNECT_DESC_PARAM(_name, _uname, _size)               \
 332         UFS_DESC_PARAM(_name, _uname, INTERCONNECT, _size)
 333
 334 UFS_INTERCONNECT_DESC_PARAM(unipro_version, _UNIPRO_VER, 2);
 335 UFS_INTERCONNECT_DESC_PARAM(mphy_version, _MPHY_VER, 2);
 336
 337 static struct attribute *ufs_sysfs_interconnect_descriptor[] = {
 338         &dev_attr_unipro_version.attr,
 339         &dev_attr_mphy_version.attr,
 340         NULL,
 341 };
 342
 343 static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = {
 344         .name = "interconnect_descriptor",
 345         .attrs = ufs_sysfs_interconnect_descriptor,
 346 };
 347
 348 #define UFS_GEOMETRY_DESC_PARAM(_name, _uname, _size)                   \
 349         UFS_DESC_PARAM(_name, _uname, GEOMETRY, _size)
 350
 351 UFS_GEOMETRY_DESC_PARAM(raw_device_capacity, _DEV_CAP, 8);
 352 UFS_GEOMETRY_DESC_PARAM(max_number_of_luns, _MAX_NUM_LUN, 1);
 353 UFS_GEOMETRY_DESC_PARAM(segment_size, _SEG_SIZE, 4);
 354 UFS_GEOMETRY_DESC_PARAM(allocation_unit_size, _ALLOC_UNIT_SIZE, 1);
 355 UFS_GEOMETRY_DESC_PARAM(min_addressable_block_size, _MIN_BLK_SIZE, 1);
 356 UFS_GEOMETRY_DESC_PARAM(optimal_read_block_size, _OPT_RD_BLK_SIZE, 1);
 357 UFS_GEOMETRY_DESC_PARAM(optimal_write_block_size, _OPT_WR_BLK_SIZE, 1);
 358 UFS_GEOMETRY_DESC_PARAM(max_in_buffer_size, _MAX_IN_BUF_SIZE, 1);
 359 UFS_GEOMETRY_DESC_PARAM(max_out_buffer_size, _MAX_OUT_BUF_SIZE, 1);
 360 UFS_GEOMETRY_DESC_PARAM(rpmb_rw_size, _RPMB_RW_SIZE, 1);
 361 UFS_GEOMETRY_DESC_PARAM(dyn_capacity_resource_policy, _DYN_CAP_RSRC_PLC, 1);
 362 UFS_GEOMETRY_DESC_PARAM(data_ordering, _DATA_ORDER, 1);
 363 UFS_GEOMETRY_DESC_PARAM(max_number_of_contexts, _MAX_NUM_CTX, 1);
 364 UFS_GEOMETRY_DESC_PARAM(sys_data_tag_unit_size, _TAG_UNIT_SIZE, 1);
 365 UFS_GEOMETRY_DESC_PARAM(sys_data_tag_resource_size, _TAG_RSRC_SIZE, 1);
 366 UFS_GEOMETRY_DESC_PARAM(secure_removal_types, _SEC_RM_TYPES, 1);
 367 UFS_GEOMETRY_DESC_PARAM(memory_types, _MEM_TYPES, 2);
 368 UFS_GEOMETRY_DESC_PARAM(sys_code_memory_max_alloc_units,
 369         _SCM_MAX_NUM_UNITS, 4);
 370 UFS_GEOMETRY_DESC_PARAM(sys_code_memory_capacity_adjustment_factor,
 371         _SCM_CAP_ADJ_FCTR, 2);
 372 UFS_GEOMETRY_DESC_PARAM(non_persist_memory_max_alloc_units,
 373         _NPM_MAX_NUM_UNITS, 4);
 374 UFS_GEOMETRY_DESC_PARAM(non_persist_memory_capacity_adjustment_factor,
 375         _NPM_CAP_ADJ_FCTR, 2);
 376 UFS_GEOMETRY_DESC_PARAM(enh1_memory_max_alloc_units,
 377         _ENM1_MAX_NUM_UNITS, 4);
 378 UFS_GEOMETRY_DESC_PARAM(enh1_memory_capacity_adjustment_factor,
 379         _ENM1_CAP_ADJ_FCTR, 2);
 380 UFS_GEOMETRY_DESC_PARAM(enh2_memory_max_alloc_units,
 381         _ENM2_MAX_NUM_UNITS, 4);
 382 UFS_GEOMETRY_DESC_PARAM(enh2_memory_capacity_adjustment_factor,
 383         _ENM2_CAP_ADJ_FCTR, 2);
 384 UFS_GEOMETRY_DESC_PARAM(enh3_memory_max_alloc_units,
 385         _ENM3_MAX_NUM_UNITS, 4);
 386 UFS_GEOMETRY_DESC_PARAM(enh3_memory_capacity_adjustment_factor,
 387         _ENM3_CAP_ADJ_FCTR, 2);
 388 UFS_GEOMETRY_DESC_PARAM(enh4_memory_max_alloc_units,
 389         _ENM4_MAX_NUM_UNITS, 4);
 390 UFS_GEOMETRY_DESC_PARAM(enh4_memory_capacity_adjustment_factor,
 391         _ENM4_CAP_ADJ_FCTR, 2);
 392 UFS_GEOMETRY_DESC_PARAM(wb_max_alloc_units, _WB_MAX_ALLOC_UNITS, 4);
 393 UFS_GEOMETRY_DESC_PARAM(wb_max_wb_luns, _WB_MAX_WB_LUNS, 1);
 394 UFS_GEOMETRY_DESC_PARAM(wb_buff_cap_adj, _WB_BUFF_CAP_ADJ, 1);
 395 UFS_GEOMETRY_DESC_PARAM(wb_sup_red_type, _WB_SUP_RED_TYPE, 1);
 396 UFS_GEOMETRY_DESC_PARAM(wb_sup_wb_type, _WB_SUP_WB_TYPE, 1);
 397
 398
 399 static struct attribute *ufs_sysfs_geometry_descriptor[] = {
 400         &dev_attr_raw_device_capacity.attr,
 401         &dev_attr_max_number_of_luns.attr,
 402         &dev_attr_segment_size.attr,
 403         &dev_attr_allocation_unit_size.attr,
 404         &dev_attr_min_addressable_block_size.attr,
 405         &dev_attr_optimal_read_block_size.attr,
 406         &dev_attr_optimal_write_block_size.attr,
 407         &dev_attr_max_in_buffer_size.attr,
 408         &dev_attr_max_out_buffer_size.attr,
 409         &dev_attr_rpmb_rw_size.attr,
 410         &dev_attr_dyn_capacity_resource_policy.attr,
 411         &dev_attr_data_ordering.attr,
 412         &dev_attr_max_number_of_contexts.attr,
 413         &dev_attr_sys_data_tag_unit_size.attr,
 414         &dev_attr_sys_data_tag_resource_size.attr,
 415         &dev_attr_secure_removal_types.attr,
 416         &dev_attr_memory_types.attr,
 417         &dev_attr_sys_code_memory_max_alloc_units.attr,
 418         &dev_attr_sys_code_memory_capacity_adjustment_factor.attr,
 419         &dev_attr_non_persist_memory_max_alloc_units.attr,
 420         &dev_attr_non_persist_memory_capacity_adjustment_factor.attr,
 421         &dev_attr_enh1_memory_max_alloc_units.attr,
 422         &dev_attr_enh1_memory_capacity_adjustment_factor.attr,
 423         &dev_attr_enh2_memory_max_alloc_units.attr,
 424         &dev_attr_enh2_memory_capacity_adjustment_factor.attr,
 425         &dev_attr_enh3_memory_max_alloc_units.attr,
 426         &dev_attr_enh3_memory_capacity_adjustment_factor.attr,
 427         &dev_attr_enh4_memory_max_alloc_units.attr,
 428         &dev_attr_enh4_memory_capacity_adjustment_factor.attr,
 429         &dev_attr_wb_max_alloc_units.attr,
 430         &dev_attr_wb_max_wb_luns.attr,
 431         &dev_attr_wb_buff_cap_adj.attr,
 432         &dev_attr_wb_sup_red_type.attr,
 433         &dev_attr_wb_sup_wb_type.attr,
 434         NULL,
 435 };
 436
 437 static const struct attribute_group ufs_sysfs_geometry_descriptor_group = {
 438         .name = "geometry_descriptor",
 439         .attrs = ufs_sysfs_geometry_descriptor,
 440 };
 441
 442 #define UFS_HEALTH_DESC_PARAM(_name, _uname, _size)                     \
 443         UFS_DESC_PARAM(_name, _uname, HEALTH, _size)
 444
 445 UFS_HEALTH_DESC_PARAM(eol_info, _EOL_INFO, 1);
 446 UFS_HEALTH_DESC_PARAM(life_time_estimation_a, _LIFE_TIME_EST_A, 1);
 447 UFS_HEALTH_DESC_PARAM(life_time_estimation_b, _LIFE_TIME_EST_B, 1);
 448
 449 static struct attribute *ufs_sysfs_health_descriptor[] = {
 450         &dev_attr_eol_info.attr,
 451         &dev_attr_life_time_estimation_a.attr,
 452         &dev_attr_life_time_estimation_b.attr,
 453         NULL,
 454 };
 455
 456 static const struct attribute_group ufs_sysfs_health_descriptor_group = {
 457         .name = "health_descriptor",
 458         .attrs = ufs_sysfs_health_descriptor,
 459 };
 460
 461 #define UFS_POWER_DESC_PARAM(_name, _uname, _index)                     \
 462 static ssize_t _name##_index##_show(struct device *dev,                 \
 463         struct device_attribute *attr, char *buf)                       \
 464 {                                                                       \
 465         struct ufs_hba *hba = dev_get_drvdata(dev);                     \
 466         return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0,  \
 467                 PWR_DESC##_uname##_0 + _index * 2, buf, 2);             \
 468 }                                                                       \
 469 static DEVICE_ATTR_RO(_name##_index)
 470
 471 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 0);
 472 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 1);
 473 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 2);
 474 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 3);
 475 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 4);
 476 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 5);
 477 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 6);
 478 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 7);
 479 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 8);
 480 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 9);
 481 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 10);
 482 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 11);
 483 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 12);
 484 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 13);
 485 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 14);
 486 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 15);
 487 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 0);
 488 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 1);
 489 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 2);
 490 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 3);
 491 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 4);
 492 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 5);
 493 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 6);
 494 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 7);
 495 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 8);
 496 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 9);
 497 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 10);
 498 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 11);
 499 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 12);
 500 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 13);
 501 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 14);
 502 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 15);
 503 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 0);
 504 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 1);
 505 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 2);
 506 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 3);
 507 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 4);
 508 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 5);
 509 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 6);
 510 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 7);
 511 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 8);
 512 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 9);
 513 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 10);
 514 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 11);
 515 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 12);
 516 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 13);
 517 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 14);
 518 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 15);
 519
 520 static struct attribute *ufs_sysfs_power_descriptor[] = {
 521         &dev_attr_active_icc_levels_vcc0.attr,
 522         &dev_attr_active_icc_levels_vcc1.attr,
 523         &dev_attr_active_icc_levels_vcc2.attr,
 524         &dev_attr_active_icc_levels_vcc3.attr,
 525         &dev_attr_active_icc_levels_vcc4.attr,
 526         &dev_attr_active_icc_levels_vcc5.attr,
 527         &dev_attr_active_icc_levels_vcc6.attr,
 528         &dev_attr_active_icc_levels_vcc7.attr,
 529         &dev_attr_active_icc_levels_vcc8.attr,
 530         &dev_attr_active_icc_levels_vcc9.attr,
 531         &dev_attr_active_icc_levels_vcc10.attr,
 532         &dev_attr_active_icc_levels_vcc11.attr,
 533         &dev_attr_active_icc_levels_vcc12.attr,
 534         &dev_attr_active_icc_levels_vcc13.attr,
 535         &dev_attr_active_icc_levels_vcc14.attr,
 536         &dev_attr_active_icc_levels_vcc15.attr,
 537         &dev_attr_active_icc_levels_vccq0.attr,
 538         &dev_attr_active_icc_levels_vccq1.attr,
 539         &dev_attr_active_icc_levels_vccq2.attr,
 540         &dev_attr_active_icc_levels_vccq3.attr,
 541         &dev_attr_active_icc_levels_vccq4.attr,
 542         &dev_attr_active_icc_levels_vccq5.attr,
 543         &dev_attr_active_icc_levels_vccq6.attr,
 544         &dev_attr_active_icc_levels_vccq7.attr,
 545         &dev_attr_active_icc_levels_vccq8.attr,
 546         &dev_attr_active_icc_levels_vccq9.attr,
 547         &dev_attr_active_icc_levels_vccq10.attr,
 548         &dev_attr_active_icc_levels_vccq11.attr,
 549         &dev_attr_active_icc_levels_vccq12.attr,
 550         &dev_attr_active_icc_levels_vccq13.attr,
 551         &dev_attr_active_icc_levels_vccq14.attr,
 552         &dev_attr_active_icc_levels_vccq15.attr,
 553         &dev_attr_active_icc_levels_vccq20.attr,
 554         &dev_attr_active_icc_levels_vccq21.attr,
 555         &dev_attr_active_icc_levels_vccq22.attr,
 556         &dev_attr_active_icc_levels_vccq23.attr,
 557         &dev_attr_active_icc_levels_vccq24.attr,
 558         &dev_attr_active_icc_levels_vccq25.attr,
 559         &dev_attr_active_icc_levels_vccq26.attr,
 560         &dev_attr_active_icc_levels_vccq27.attr,
 561         &dev_attr_active_icc_levels_vccq28.attr,
 562         &dev_attr_active_icc_levels_vccq29.attr,
 563         &dev_attr_active_icc_levels_vccq210.attr,
 564         &dev_attr_active_icc_levels_vccq211.attr,
 565         &dev_attr_active_icc_levels_vccq212.attr,
 566         &dev_attr_active_icc_levels_vccq213.attr,
 567         &dev_attr_active_icc_levels_vccq214.attr,
 568         &dev_attr_active_icc_levels_vccq215.attr,
 569         NULL,
 570 };
 571
 572 static const struct attribute_group ufs_sysfs_power_descriptor_group = {
 573         .name = "power_descriptor",
 574         .attrs = ufs_sysfs_power_descriptor,
 575 };
 576
 577 #define UFS_STRING_DESCRIPTOR(_name, _pname)                            \
 578 static ssize_t _name##_show(struct device *dev,                         \
 579         struct device_attribute *attr, char *buf)                       \
 580 {                                                                       \
 581         u8 index;                                                       \
 582         struct ufs_hba *hba = dev_get_drvdata(dev);                     \
 583         int ret;                                                        \
 584         int desc_len = QUERY_DESC_MAX_SIZE;                             \
 585         u8 *desc_buf;                                                   \
 586                                                                         \
 587         desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC);            \
 588         if (!desc_buf)                                                  \
 589                 return -ENOMEM;                                         \
 590         pm_runtime_get_sync(hba->dev);                                  \
 591         ret = ufshcd_query_descriptor_retry(hba,                        \
 592                 UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE,     \
 593                 0, 0, desc_buf, &desc_len);                             \
 594         if (ret) {                                                      \
 595                 ret = -EINVAL;                                          \
 596                 goto out;                                               \
 597         }                                                               \
 598         index = desc_buf[DEVICE_DESC_PARAM##_pname];                    \
 599         kfree(desc_buf);                                                \
 600         desc_buf = NULL;                                                \
 601         ret = ufshcd_read_string_desc(hba, index, &desc_buf,            \
 602                                       SD_ASCII_STD);                    \
 603         if (ret < 0)                                                    \
 604                 goto out;                                               \
 605         ret = snprintf(buf, PAGE_SIZE, "%s\n", desc_buf);               \
 606 out:                                                                    \
 607         pm_runtime_put_sync(hba->dev);                                  \
 608         kfree(desc_buf);                                                \
 609         return ret;                                                     \
 610 }                                                                       \
 611 static DEVICE_ATTR_RO(_name)
 612
 613 UFS_STRING_DESCRIPTOR(manufacturer_name, _MANF_NAME);
 614 UFS_STRING_DESCRIPTOR(product_name, _PRDCT_NAME);
 615 UFS_STRING_DESCRIPTOR(oem_id, _OEM_ID);
 616 UFS_STRING_DESCRIPTOR(serial_number, _SN);
 617 UFS_STRING_DESCRIPTOR(product_revision, _PRDCT_REV);
 618
 619 static struct attribute *ufs_sysfs_string_descriptors[] = {
 620         &dev_attr_manufacturer_name.attr,
 621         &dev_attr_product_name.attr,
 622         &dev_attr_oem_id.attr,
 623         &dev_attr_serial_number.attr,
 624         &dev_attr_product_revision.attr,
 625         NULL,
 626 };
 627
 628 static const struct attribute_group ufs_sysfs_string_descriptors_group = {
 629         .name = "string_descriptors",
 630         .attrs = ufs_sysfs_string_descriptors,
 631 };
 632
 633 static inline bool ufshcd_is_wb_flags(enum flag_idn idn)
 634 {
 635         return ((idn >= QUERY_FLAG_IDN_WB_EN) &&
 636                 (idn <= QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8));
 637 }
 638
 639 #define UFS_FLAG(_name, _uname)                                         \
 640 static ssize_t _name##_show(struct device *dev,                         \
 641         struct device_attribute *attr, char *buf)                       \
 642 {                                                                       \
 643         bool flag;                                                      \
 644         u8 index = 0;                                                   \
 645         int ret;                                                        \
 646         struct ufs_hba *hba = dev_get_drvdata(dev);                     \
 647         if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname))                 \
 648                 index = ufshcd_wb_get_query_index(hba);                 \
 649         pm_runtime_get_sync(hba->dev);                                  \
 650         ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG,       \
 651                 QUERY_FLAG_IDN##_uname, index, &flag);                  \
 652         pm_runtime_put_sync(hba->dev);                                  \
 653         if (ret)                                                        \
 654                 return -EINVAL;                                         \
 655         return sprintf(buf, "%s\n", flag ? "true" : "false"); \
 656 }                                                                       \
 657 static DEVICE_ATTR_RO(_name)
 658
 659 UFS_FLAG(device_init, _FDEVICEINIT);
 660 UFS_FLAG(permanent_wpe, _PERMANENT_WPE);
 661 UFS_FLAG(power_on_wpe, _PWR_ON_WPE);
 662 UFS_FLAG(bkops_enable, _BKOPS_EN);
 663 UFS_FLAG(life_span_mode_enable, _LIFE_SPAN_MODE_ENABLE);
 664 UFS_FLAG(phy_resource_removal, _FPHYRESOURCEREMOVAL);
 665 UFS_FLAG(busy_rtc, _BUSY_RTC);
 666 UFS_FLAG(disable_fw_update, _PERMANENTLY_DISABLE_FW_UPDATE);
 667 UFS_FLAG(wb_enable, _WB_EN);
 668 UFS_FLAG(wb_flush_en, _WB_BUFF_FLUSH_EN);
 669 UFS_FLAG(wb_flush_during_h8, _WB_BUFF_FLUSH_DURING_HIBERN8);
 670
 671 static struct attribute *ufs_sysfs_device_flags[] = {
 672         &dev_attr_device_init.attr,
 673         &dev_attr_permanent_wpe.attr,
 674         &dev_attr_power_on_wpe.attr,
 675         &dev_attr_bkops_enable.attr,
 676         &dev_attr_life_span_mode_enable.attr,
 677         &dev_attr_phy_resource_removal.attr,
 678         &dev_attr_busy_rtc.attr,
 679         &dev_attr_disable_fw_update.attr,
 680         &dev_attr_wb_enable.attr,
 681         &dev_attr_wb_flush_en.attr,
 682         &dev_attr_wb_flush_during_h8.attr,
 683         NULL,
 684 };
 685
 686 static const struct attribute_group ufs_sysfs_flags_group = {
 687         .name = "flags",
 688         .attrs = ufs_sysfs_device_flags,
 689 };
 690
 691 static inline bool ufshcd_is_wb_attrs(enum attr_idn idn)
 692 {
 693         return ((idn >= QUERY_ATTR_IDN_WB_FLUSH_STATUS) &&
 694                 (idn <= QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE));
 695 }
 696
 697 #define UFS_ATTRIBUTE(_name, _uname)                                    \
 698 static ssize_t _name##_show(struct device *dev,                         \
 699         struct device_attribute *attr, char *buf)                       \
 700 {                                                                       \
 701         struct ufs_hba *hba = dev_get_drvdata(dev);                     \
 702         u32 value;                                                      \
 703         int ret;                                                        \
 704         u8 index = 0;                                                   \
 705         if (ufshcd_is_wb_attrs(QUERY_ATTR_IDN##_uname))                 \
 706                 index = ufshcd_wb_get_query_index(hba);                 \
 707         pm_runtime_get_sync(hba->dev);                                  \
 708         ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,       \
 709                 QUERY_ATTR_IDN##_uname, index, 0, &value);              \
 710         pm_runtime_put_sync(hba->dev);                                  \
 711         if (ret)                                                        \
 712                 return -EINVAL;                                         \
 713         return sprintf(buf, "0x%08X\n", value);                         \
 714 }                                                                       \
 715 static DEVICE_ATTR_RO(_name)
 716
 717 UFS_ATTRIBUTE(boot_lun_enabled, _BOOT_LU_EN);
 718 UFS_ATTRIBUTE(current_power_mode, _POWER_MODE);
 719 UFS_ATTRIBUTE(active_icc_level, _ACTIVE_ICC_LVL);
 720 UFS_ATTRIBUTE(ooo_data_enabled, _OOO_DATA_EN);
 721 UFS_ATTRIBUTE(bkops_status, _BKOPS_STATUS);
 722 UFS_ATTRIBUTE(purge_status, _PURGE_STATUS);
 723 UFS_ATTRIBUTE(max_data_in_size, _MAX_DATA_IN);
 724 UFS_ATTRIBUTE(max_data_out_size, _MAX_DATA_OUT);
 725 UFS_ATTRIBUTE(reference_clock_frequency, _REF_CLK_FREQ);
 726 UFS_ATTRIBUTE(configuration_descriptor_lock, _CONF_DESC_LOCK);
 727 UFS_ATTRIBUTE(max_number_of_rtt, _MAX_NUM_OF_RTT);
 728 UFS_ATTRIBUTE(exception_event_control, _EE_CONTROL);
 729 UFS_ATTRIBUTE(exception_event_status, _EE_STATUS);
 730 UFS_ATTRIBUTE(ffu_status, _FFU_STATUS);
 731 UFS_ATTRIBUTE(psa_state, _PSA_STATE);
 732 UFS_ATTRIBUTE(psa_data_size, _PSA_DATA_SIZE);
 733 UFS_ATTRIBUTE(wb_flush_status, _WB_FLUSH_STATUS);
 734 UFS_ATTRIBUTE(wb_avail_buf, _AVAIL_WB_BUFF_SIZE);
 735 UFS_ATTRIBUTE(wb_life_time_est, _WB_BUFF_LIFE_TIME_EST);
 736 UFS_ATTRIBUTE(wb_cur_buf, _CURR_WB_BUFF_SIZE);
 737
 738
 739 static struct attribute *ufs_sysfs_attributes[] = {
 740         &dev_attr_boot_lun_enabled.attr,
 741         &dev_attr_current_power_mode.attr,
 742         &dev_attr_active_icc_level.attr,
 743         &dev_attr_ooo_data_enabled.attr,
 744         &dev_attr_bkops_status.attr,
 745         &dev_attr_purge_status.attr,
 746         &dev_attr_max_data_in_size.attr,
 747         &dev_attr_max_data_out_size.attr,
 748         &dev_attr_reference_clock_frequency.attr,
 749         &dev_attr_configuration_descriptor_lock.attr,
 750         &dev_attr_max_number_of_rtt.attr,
 751         &dev_attr_exception_event_control.attr,
 752         &dev_attr_exception_event_status.attr,
 753         &dev_attr_ffu_status.attr,
 754         &dev_attr_psa_state.attr,
 755         &dev_attr_psa_data_size.attr,
 756         &dev_attr_wb_flush_status.attr,
 757         &dev_attr_wb_avail_buf.attr,
 758         &dev_attr_wb_life_time_est.attr,
 759         &dev_attr_wb_cur_buf.attr,
 760         NULL,
 761 };
 762
 763 static const struct attribute_group ufs_sysfs_attributes_group = {
 764         .name = "attributes",
 765         .attrs = ufs_sysfs_attributes,
 766 };
 767
 768 static const struct attribute_group *ufs_sysfs_groups[] = {
 769         &ufs_sysfs_default_group,
 770         &ufs_sysfs_device_descriptor_group,
 771         &ufs_sysfs_interconnect_descriptor_group,
 772         &ufs_sysfs_geometry_descriptor_group,
 773         &ufs_sysfs_health_descriptor_group,
 774         &ufs_sysfs_power_descriptor_group,
 775         &ufs_sysfs_string_descriptors_group,
 776         &ufs_sysfs_flags_group,
 777         &ufs_sysfs_attributes_group,
 778         NULL,
 779 };
 780
 781 #define UFS_LUN_DESC_PARAM(_pname, _puname, _duname, _size)             \
 782 static ssize_t _pname##_show(struct device *dev,                        \
 783         struct device_attribute *attr, char *buf)                       \
 784 {                                                                       \
 785         struct scsi_device *sdev = to_scsi_device(dev);                 \
 786         struct ufs_hba *hba = shost_priv(sdev->host);                   \
 787         u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun);                    \
 788         if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun,            \
 789                                 _duname##_DESC_PARAM##_puname))         \
 790                 return -EINVAL;                                         \
 791         return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \
 792                 lun, _duname##_DESC_PARAM##_puname, buf, _size);        \
 793 }                                                                       \
 794 static DEVICE_ATTR_RO(_pname)
 795
 796 #define UFS_UNIT_DESC_PARAM(_name, _uname, _size)                       \
 797         UFS_LUN_DESC_PARAM(_name, _uname, UNIT, _size)
 798
 799 UFS_UNIT_DESC_PARAM(boot_lun_id, _BOOT_LUN_ID, 1);
 800 UFS_UNIT_DESC_PARAM(lun_write_protect, _LU_WR_PROTECT, 1);
 801 UFS_UNIT_DESC_PARAM(lun_queue_depth, _LU_Q_DEPTH, 1);
 802 UFS_UNIT_DESC_PARAM(psa_sensitive, _PSA_SENSITIVE, 1);
 803 UFS_UNIT_DESC_PARAM(lun_memory_type, _MEM_TYPE, 1);
 804 UFS_UNIT_DESC_PARAM(data_reliability, _DATA_RELIABILITY, 1);
 805 UFS_UNIT_DESC_PARAM(logical_block_size, _LOGICAL_BLK_SIZE, 1);
 806 UFS_UNIT_DESC_PARAM(logical_block_count, _LOGICAL_BLK_COUNT, 8);
 807 UFS_UNIT_DESC_PARAM(erase_block_size, _ERASE_BLK_SIZE, 4);
 808 UFS_UNIT_DESC_PARAM(provisioning_type, _PROVISIONING_TYPE, 1);
 809 UFS_UNIT_DESC_PARAM(physical_memory_resourse_count, _PHY_MEM_RSRC_CNT, 8);
 810 UFS_UNIT_DESC_PARAM(context_capabilities, _CTX_CAPABILITIES, 2);
 811 UFS_UNIT_DESC_PARAM(large_unit_granularity, _LARGE_UNIT_SIZE_M1, 1);
 812 UFS_UNIT_DESC_PARAM(wb_buf_alloc_units, _WB_BUF_ALLOC_UNITS, 4);
 813
 814
 815 static struct attribute *ufs_sysfs_unit_descriptor[] = {
 816         &dev_attr_boot_lun_id.attr,
 817         &dev_attr_lun_write_protect.attr,
 818         &dev_attr_lun_queue_depth.attr,
 819         &dev_attr_psa_sensitive.attr,
 820         &dev_attr_lun_memory_type.attr,
 821         &dev_attr_data_reliability.attr,
 822         &dev_attr_logical_block_size.attr,
 823         &dev_attr_logical_block_count.attr,
 824         &dev_attr_erase_block_size.attr,
 825         &dev_attr_provisioning_type.attr,
 826         &dev_attr_physical_memory_resourse_count.attr,
 827         &dev_attr_context_capabilities.attr,
 828         &dev_attr_large_unit_granularity.attr,
 829         &dev_attr_wb_buf_alloc_units.attr,
 830         NULL,
 831 };
 832
 833 const struct attribute_group ufs_sysfs_unit_descriptor_group = {
 834         .name = "unit_descriptor",
 835         .attrs = ufs_sysfs_unit_descriptor,
 836 };
 837
 838 static ssize_t dyn_cap_needed_attribute_show(struct device *dev,
 839         struct device_attribute *attr, char *buf)
 840 {
 841         u32 value;
 842         struct scsi_device *sdev = to_scsi_device(dev);
 843         struct ufs_hba *hba = shost_priv(sdev->host);
 844         u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun);
 845         int ret;
 846
 847         pm_runtime_get_sync(hba->dev);
 848         ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,
 849                 QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value);
 850         pm_runtime_put_sync(hba->dev);
 851         if (ret)
 852                 return -EINVAL;
 853         return sprintf(buf, "0x%08X\n", value);
 854 }
 855 static DEVICE_ATTR_RO(dyn_cap_needed_attribute);
 856
 857 static struct attribute *ufs_sysfs_lun_attributes[] = {
 858         &dev_attr_dyn_cap_needed_attribute.attr,
 859         NULL,
 860 };
 861
 862 const struct attribute_group ufs_sysfs_lun_attributes_group = {
 863         .attrs = ufs_sysfs_lun_attributes,
 864 };
 865
 866 void ufs_sysfs_add_nodes(struct device *dev)
 867 {
 868         int ret;
 869
 870         ret = sysfs_create_groups(&dev->kobj, ufs_sysfs_groups);
 871         if (ret)
 872                 dev_err(dev,
 873                         "%s: sysfs groups creation failed (err = %d)\n",
 874                         __func__, ret);
 875 }
 876
 877 void ufs_sysfs_remove_nodes(struct device *dev)
 878 {
 879         sysfs_remove_groups(&dev->kobj, ufs_sysfs_groups);
 880 }