diff options
Diffstat (limited to 'drivers/target/target_core_stat.c')
| -rw-r--r-- | drivers/target/target_core_stat.c | 1370 |
1 files changed, 1370 insertions, 0 deletions
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c new file mode 100644 index 000000000..237309db4 --- /dev/null +++ b/drivers/target/target_core_stat.c @@ -0,0 +1,1370 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/******************************************************************************* + * Filename: target_core_stat.c + * + * Modern ConfigFS group context specific statistics based on original + * target_core_mib.c code + * + * (c) Copyright 2006-2013 Datera, Inc. + * + * Nicholas A. Bellinger <nab@linux-iscsi.org> + * + ******************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/string.h> +#include <linux/utsname.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/configfs.h> + +#include <target/target_core_base.h> +#include <target/target_core_backend.h> +#include <target/target_core_fabric.h> + +#include "target_core_internal.h" + +#ifndef INITIAL_JIFFIES +#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) +#endif + +#define NONE "None" +#define ISPRINT(a) ((a >= ' ') && (a <= '~')) + +#define SCSI_LU_INDEX 1 +#define LU_COUNT 1 + +/* + * SCSI Device Table + */ + +static struct se_device *to_stat_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_dev_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} + +static ssize_t target_stat_inst_show(struct config_item *item, char *page) +{ + struct se_hba *hba = to_stat_dev(item)->se_hba; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} + +static ssize_t target_stat_indx_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->dev_index); +} + +static ssize_t target_stat_role_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "Target\n"); +} + +static ssize_t target_stat_ports_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->export_count); +} + +CONFIGFS_ATTR_RO(target_stat_, inst); +CONFIGFS_ATTR_RO(target_stat_, indx); +CONFIGFS_ATTR_RO(target_stat_, role); +CONFIGFS_ATTR_RO(target_stat_, ports); + +static struct configfs_attribute *target_stat_scsi_dev_attrs[] = { + &target_stat_attr_inst, + &target_stat_attr_indx, + &target_stat_attr_role, + &target_stat_attr_ports, + NULL, +}; + +static const struct config_item_type target_stat_scsi_dev_cit = { + .ct_attrs = target_stat_scsi_dev_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Target Device Table + */ +static struct se_device *to_stat_tgt_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_tgt_dev_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} + +static ssize_t target_stat_tgt_inst_show(struct config_item *item, char *page) +{ + struct se_hba *hba = to_stat_tgt_dev(item)->se_hba; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} + +static ssize_t target_stat_tgt_indx_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_tgt_dev(item)->dev_index); +} + +static ssize_t target_stat_tgt_num_lus_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT); +} + +static ssize_t target_stat_tgt_status_show(struct config_item *item, + char *page) +{ + if (to_stat_tgt_dev(item)->export_count) + return snprintf(page, PAGE_SIZE, "activated"); + else + return snprintf(page, PAGE_SIZE, "deactivated"); +} + +static ssize_t target_stat_tgt_non_access_lus_show(struct config_item *item, + char *page) +{ + int non_accessible_lus; + + if (to_stat_tgt_dev(item)->export_count) + non_accessible_lus = 0; + else + non_accessible_lus = 1; + + return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus); +} + +static ssize_t target_stat_tgt_resets_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&to_stat_tgt_dev(item)->num_resets)); +} + +static ssize_t target_stat_tgt_aborts_complete_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&to_stat_tgt_dev(item)->aborts_complete)); +} + +static ssize_t target_stat_tgt_aborts_no_task_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&to_stat_tgt_dev(item)->aborts_no_task)); +} + +CONFIGFS_ATTR_RO(target_stat_tgt_, inst); +CONFIGFS_ATTR_RO(target_stat_tgt_, indx); +CONFIGFS_ATTR_RO(target_stat_tgt_, num_lus); +CONFIGFS_ATTR_RO(target_stat_tgt_, status); +CONFIGFS_ATTR_RO(target_stat_tgt_, non_access_lus); +CONFIGFS_ATTR_RO(target_stat_tgt_, resets); +CONFIGFS_ATTR_RO(target_stat_tgt_, aborts_complete); +CONFIGFS_ATTR_RO(target_stat_tgt_, aborts_no_task); + +static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = { + &target_stat_tgt_attr_inst, + &target_stat_tgt_attr_indx, + &target_stat_tgt_attr_num_lus, + &target_stat_tgt_attr_status, + &target_stat_tgt_attr_non_access_lus, + &target_stat_tgt_attr_resets, + &target_stat_tgt_attr_aborts_complete, + &target_stat_tgt_attr_aborts_no_task, + NULL, +}; + +static const struct config_item_type target_stat_scsi_tgt_dev_cit = { + .ct_attrs = target_stat_scsi_tgt_dev_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Logical Unit Table + */ + +static struct se_device *to_stat_lu_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_lu_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} + +static ssize_t target_stat_lu_inst_show(struct config_item *item, char *page) +{ + struct se_hba *hba = to_stat_lu_dev(item)->se_hba; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} + +static ssize_t target_stat_lu_dev_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + to_stat_lu_dev(item)->dev_index); +} + +static ssize_t target_stat_lu_indx_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX); +} + +static ssize_t target_stat_lu_lun_show(struct config_item *item, char *page) +{ + /* FIXME: scsiLuDefaultLun */ + return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0); +} + +static ssize_t target_stat_lu_lu_name_show(struct config_item *item, char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuWwnName */ + return snprintf(page, PAGE_SIZE, "%s\n", + (strlen(dev->t10_wwn.unit_serial)) ? + dev->t10_wwn.unit_serial : "None"); +} + +static ssize_t target_stat_lu_vend_show(struct config_item *item, char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + return snprintf(page, PAGE_SIZE, "%-" __stringify(INQUIRY_VENDOR_LEN) + "s\n", dev->t10_wwn.vendor); +} + +static ssize_t target_stat_lu_prod_show(struct config_item *item, char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + return snprintf(page, PAGE_SIZE, "%-" __stringify(INQUIRY_MODEL_LEN) + "s\n", dev->t10_wwn.model); +} + +static ssize_t target_stat_lu_rev_show(struct config_item *item, char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + return snprintf(page, PAGE_SIZE, "%-" __stringify(INQUIRY_REVISION_LEN) + "s\n", dev->t10_wwn.revision); +} + +static ssize_t target_stat_lu_dev_type_show(struct config_item *item, char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuPeripheralType */ + return snprintf(page, PAGE_SIZE, "%u\n", + dev->transport->get_device_type(dev)); +} + +static ssize_t target_stat_lu_status_show(struct config_item *item, char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuStatus */ + return snprintf(page, PAGE_SIZE, "%s\n", + (dev->export_count) ? "available" : "notavailable"); +} + +static ssize_t target_stat_lu_state_bit_show(struct config_item *item, + char *page) +{ + /* scsiLuState */ + return snprintf(page, PAGE_SIZE, "exposed\n"); +} + +static ssize_t target_stat_lu_num_cmds_show(struct config_item *item, + char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuNumCommands */ + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->num_cmds)); +} + +static ssize_t target_stat_lu_read_mbytes_show(struct config_item *item, + char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuReadMegaBytes */ + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->read_bytes) >> 20); +} + +static ssize_t target_stat_lu_write_mbytes_show(struct config_item *item, + char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuWrittenMegaBytes */ + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->write_bytes) >> 20); +} + +static ssize_t target_stat_lu_resets_show(struct config_item *item, char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuInResets */ + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->num_resets)); +} + +static ssize_t target_stat_lu_full_stat_show(struct config_item *item, + char *page) +{ + /* FIXME: scsiLuOutTaskSetFullStatus */ + return snprintf(page, PAGE_SIZE, "%u\n", 0); +} + +static ssize_t target_stat_lu_hs_num_cmds_show(struct config_item *item, + char *page) +{ + /* FIXME: scsiLuHSInCommands */ + return snprintf(page, PAGE_SIZE, "%u\n", 0); +} + +static ssize_t target_stat_lu_creation_time_show(struct config_item *item, + char *page) +{ + struct se_device *dev = to_stat_lu_dev(item); + + /* scsiLuCreationTime */ + return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time - + INITIAL_JIFFIES) * 100 / HZ)); +} + +CONFIGFS_ATTR_RO(target_stat_lu_, inst); +CONFIGFS_ATTR_RO(target_stat_lu_, dev); +CONFIGFS_ATTR_RO(target_stat_lu_, indx); +CONFIGFS_ATTR_RO(target_stat_lu_, lun); +CONFIGFS_ATTR_RO(target_stat_lu_, lu_name); +CONFIGFS_ATTR_RO(target_stat_lu_, vend); +CONFIGFS_ATTR_RO(target_stat_lu_, prod); +CONFIGFS_ATTR_RO(target_stat_lu_, rev); +CONFIGFS_ATTR_RO(target_stat_lu_, dev_type); +CONFIGFS_ATTR_RO(target_stat_lu_, status); +CONFIGFS_ATTR_RO(target_stat_lu_, state_bit); +CONFIGFS_ATTR_RO(target_stat_lu_, num_cmds); +CONFIGFS_ATTR_RO(target_stat_lu_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_lu_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_lu_, resets); +CONFIGFS_ATTR_RO(target_stat_lu_, full_stat); +CONFIGFS_ATTR_RO(target_stat_lu_, hs_num_cmds); +CONFIGFS_ATTR_RO(target_stat_lu_, creation_time); + +static struct configfs_attribute *target_stat_scsi_lu_attrs[] = { + &target_stat_lu_attr_inst, + &target_stat_lu_attr_dev, + &target_stat_lu_attr_indx, + &target_stat_lu_attr_lun, + &target_stat_lu_attr_lu_name, + &target_stat_lu_attr_vend, + &target_stat_lu_attr_prod, + &target_stat_lu_attr_rev, + &target_stat_lu_attr_dev_type, + &target_stat_lu_attr_status, + &target_stat_lu_attr_state_bit, + &target_stat_lu_attr_num_cmds, + &target_stat_lu_attr_read_mbytes, + &target_stat_lu_attr_write_mbytes, + &target_stat_lu_attr_resets, + &target_stat_lu_attr_full_stat, + &target_stat_lu_attr_hs_num_cmds, + &target_stat_lu_attr_creation_time, + NULL, +}; + +static const struct config_item_type target_stat_scsi_lu_cit = { + .ct_attrs = target_stat_scsi_lu_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_configfs.c:target_core_make_subdev() to setup + * the target statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_dev_default_groups(struct se_device *dev) +{ + config_group_init_type_name(&dev->dev_stat_grps.scsi_dev_group, + "scsi_dev", &target_stat_scsi_dev_cit); + configfs_add_default_group(&dev->dev_stat_grps.scsi_dev_group, + &dev->dev_stat_grps.stat_group); + + config_group_init_type_name(&dev->dev_stat_grps.scsi_tgt_dev_group, + "scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit); + configfs_add_default_group(&dev->dev_stat_grps.scsi_tgt_dev_group, + &dev->dev_stat_grps.stat_group); + + config_group_init_type_name(&dev->dev_stat_grps.scsi_lu_group, + "scsi_lu", &target_stat_scsi_lu_cit); + configfs_add_default_group(&dev->dev_stat_grps.scsi_lu_group, + &dev->dev_stat_grps.stat_group); +} + +/* + * SCSI Port Table + */ + +static struct se_lun *to_stat_port(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_port_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} + +static ssize_t target_stat_port_inst_show(struct config_item *item, char *page) +{ + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_port_dev_show(struct config_item *item, char *page) +{ + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_port_indx_show(struct config_item *item, char *page) +{ + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_port_role_show(struct config_item *item, char *page) +{ + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_port_busy_count_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + /* FIXME: scsiPortBusyStatuses */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + } + rcu_read_unlock(); + return ret; +} + +CONFIGFS_ATTR_RO(target_stat_port_, inst); +CONFIGFS_ATTR_RO(target_stat_port_, dev); +CONFIGFS_ATTR_RO(target_stat_port_, indx); +CONFIGFS_ATTR_RO(target_stat_port_, role); +CONFIGFS_ATTR_RO(target_stat_port_, busy_count); + +static struct configfs_attribute *target_stat_scsi_port_attrs[] = { + &target_stat_port_attr_inst, + &target_stat_port_attr_dev, + &target_stat_port_attr_indx, + &target_stat_port_attr_role, + &target_stat_port_attr_busy_count, + NULL, +}; + +static const struct config_item_type target_stat_scsi_port_cit = { + .ct_attrs = target_stat_scsi_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Target Port Table + */ +static struct se_lun *to_stat_tgt_port(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_tgt_port_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} + +static ssize_t target_stat_tgt_port_inst_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_dev_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_indx_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_name_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_portal_group *tpg = lun->lun_tpg; + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n", + tpg->se_tpg_tfo->fabric_name, + lun->lun_rtpi); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_port_index_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_portal_group *tpg = lun->lun_tpg; + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%s%s%d\n", + tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+", + tpg->se_tpg_tfo->tpg_get_tag(tpg)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_in_cmds_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&lun->lun_stats.cmd_pdus)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_write_mbytes_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&lun->lun_stats.rx_data_octets) >> 20)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_read_mbytes_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&lun->lun_stats.tx_data_octets) >> 20)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_tgt_port_hs_in_cmds_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + /* FIXME: scsiTgtPortHsInCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + } + rcu_read_unlock(); + return ret; +} + +CONFIGFS_ATTR_RO(target_stat_tgt_port_, inst); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, dev); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, indx); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, name); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, port_index); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, in_cmds); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, hs_in_cmds); + +static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = { + &target_stat_tgt_port_attr_inst, + &target_stat_tgt_port_attr_dev, + &target_stat_tgt_port_attr_indx, + &target_stat_tgt_port_attr_name, + &target_stat_tgt_port_attr_port_index, + &target_stat_tgt_port_attr_in_cmds, + &target_stat_tgt_port_attr_write_mbytes, + &target_stat_tgt_port_attr_read_mbytes, + &target_stat_tgt_port_attr_hs_in_cmds, + NULL, +}; + +static const struct config_item_type target_stat_scsi_tgt_port_cit = { + .ct_attrs = target_stat_scsi_tgt_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Transport Table + */ +static struct se_lun *to_transport_stat(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_transport_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} + +static ssize_t target_stat_transport_inst_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_transport_device_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + struct se_portal_group *tpg = lun->lun_tpg; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + /* scsiTransportType */ + ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n", + tpg->se_tpg_tfo->fabric_name); + } + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_transport_indx_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + struct se_portal_group *tpg = lun->lun_tpg; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", + tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_transport_dev_name_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + struct se_portal_group *tpg = lun->lun_tpg; + struct t10_wwn *wwn; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + wwn = &dev->t10_wwn; + /* scsiTransportDevName */ + ret = snprintf(page, PAGE_SIZE, "%s+%s\n", + tpg->se_tpg_tfo->tpg_get_wwn(tpg), + (strlen(wwn->unit_serial)) ? wwn->unit_serial : + wwn->vendor); + } + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_transport_proto_id_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + struct se_portal_group *tpg = lun->lun_tpg; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->proto_id); + rcu_read_unlock(); + return ret; +} + +CONFIGFS_ATTR_RO(target_stat_transport_, inst); +CONFIGFS_ATTR_RO(target_stat_transport_, device); +CONFIGFS_ATTR_RO(target_stat_transport_, indx); +CONFIGFS_ATTR_RO(target_stat_transport_, dev_name); +CONFIGFS_ATTR_RO(target_stat_transport_, proto_id); + +static struct configfs_attribute *target_stat_scsi_transport_attrs[] = { + &target_stat_transport_attr_inst, + &target_stat_transport_attr_device, + &target_stat_transport_attr_indx, + &target_stat_transport_attr_dev_name, + &target_stat_transport_attr_proto_id, + NULL, +}; + +static const struct config_item_type target_stat_scsi_transport_cit = { + .ct_attrs = target_stat_scsi_transport_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_fabric_configfs.c:target_fabric_make_lun() to setup + * the target port statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_port_default_groups(struct se_lun *lun) +{ + config_group_init_type_name(&lun->port_stat_grps.scsi_port_group, + "scsi_port", &target_stat_scsi_port_cit); + configfs_add_default_group(&lun->port_stat_grps.scsi_port_group, + &lun->port_stat_grps.stat_group); + + config_group_init_type_name(&lun->port_stat_grps.scsi_tgt_port_group, + "scsi_tgt_port", &target_stat_scsi_tgt_port_cit); + configfs_add_default_group(&lun->port_stat_grps.scsi_tgt_port_group, + &lun->port_stat_grps.stat_group); + + config_group_init_type_name(&lun->port_stat_grps.scsi_transport_group, + "scsi_transport", &target_stat_scsi_transport_cit); + configfs_add_default_group(&lun->port_stat_grps.scsi_transport_group, + &lun->port_stat_grps.stat_group); +} + +/* + * SCSI Authorized Initiator Table + */ + +static struct se_lun_acl *auth_to_lacl(struct config_item *item) +{ + struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), + struct se_ml_stat_grps, scsi_auth_intr_group); + return container_of(lgrps, struct se_lun_acl, ml_stat_grps); +} + +static ssize_t target_stat_auth_inst_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiInstIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_dev_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_lun *lun; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + lun = rcu_dereference(deve->se_lun); + /* scsiDeviceIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_port_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiAuthIntrTgtPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_indx_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_dev_or_port_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrDevOrPort */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 1); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_intr_name_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrName */ + ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_map_indx_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* FIXME: scsiAuthIntrLunMapIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_att_count_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrAttachedTimes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_num_cmds_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrOutCommands */ + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&deve->total_cmds)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_read_mbytes_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrReadMegaBytes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&deve->read_bytes) >> 20)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_write_mbytes_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrWrittenMegaBytes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&deve->write_bytes) >> 20)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_hs_num_cmds_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* FIXME: scsiAuthIntrHSOutCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_creation_time_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAuthIntrLastCreation */ + ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time - + INITIAL_JIFFIES) * 100 / HZ)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_auth_row_status_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* FIXME: scsiAuthIntrRowStatus */ + ret = snprintf(page, PAGE_SIZE, "Ready\n"); + rcu_read_unlock(); + return ret; +} + +CONFIGFS_ATTR_RO(target_stat_auth_, inst); +CONFIGFS_ATTR_RO(target_stat_auth_, dev); +CONFIGFS_ATTR_RO(target_stat_auth_, port); +CONFIGFS_ATTR_RO(target_stat_auth_, indx); +CONFIGFS_ATTR_RO(target_stat_auth_, dev_or_port); +CONFIGFS_ATTR_RO(target_stat_auth_, intr_name); +CONFIGFS_ATTR_RO(target_stat_auth_, map_indx); +CONFIGFS_ATTR_RO(target_stat_auth_, att_count); +CONFIGFS_ATTR_RO(target_stat_auth_, num_cmds); +CONFIGFS_ATTR_RO(target_stat_auth_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_auth_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_auth_, hs_num_cmds); +CONFIGFS_ATTR_RO(target_stat_auth_, creation_time); +CONFIGFS_ATTR_RO(target_stat_auth_, row_status); + +static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = { + &target_stat_auth_attr_inst, + &target_stat_auth_attr_dev, + &target_stat_auth_attr_port, + &target_stat_auth_attr_indx, + &target_stat_auth_attr_dev_or_port, + &target_stat_auth_attr_intr_name, + &target_stat_auth_attr_map_indx, + &target_stat_auth_attr_att_count, + &target_stat_auth_attr_num_cmds, + &target_stat_auth_attr_read_mbytes, + &target_stat_auth_attr_write_mbytes, + &target_stat_auth_attr_hs_num_cmds, + &target_stat_auth_attr_creation_time, + &target_stat_auth_attr_row_status, + NULL, +}; + +static const struct config_item_type target_stat_scsi_auth_intr_cit = { + .ct_attrs = target_stat_scsi_auth_intr_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Attached Initiator Port Table + */ + +static struct se_lun_acl *iport_to_lacl(struct config_item *item) +{ + struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), + struct se_ml_stat_grps, scsi_att_intr_port_group); + return container_of(lgrps, struct se_lun_acl, ml_stat_grps); +} + +static ssize_t target_stat_iport_inst_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiInstIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_iport_dev_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_lun *lun; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + lun = rcu_dereference(deve->se_lun); + /* scsiDeviceIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_iport_port_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg)); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_iport_indx_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_session *se_sess; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->nacl_sess_lock); + se_sess = nacl->nacl_sess; + if (!se_sess) { + spin_unlock_irq(&nacl->nacl_sess_lock); + return -ENODEV; + } + + tpg = nacl->se_tpg; + /* scsiAttIntrPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + tpg->se_tpg_tfo->sess_get_index(se_sess)); + spin_unlock_irq(&nacl->nacl_sess_lock); + return ret; +} + +static ssize_t target_stat_iport_port_auth_indx_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); + return -ENODEV; + } + /* scsiAttIntrPortAuthIntrIdx */ + ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); + rcu_read_unlock(); + return ret; +} + +static ssize_t target_stat_iport_port_ident_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_session *se_sess; + struct se_portal_group *tpg; + ssize_t ret; + unsigned char buf[64]; + + spin_lock_irq(&nacl->nacl_sess_lock); + se_sess = nacl->nacl_sess; + if (!se_sess) { + spin_unlock_irq(&nacl->nacl_sess_lock); + return -ENODEV; + } + + tpg = nacl->se_tpg; + /* scsiAttIntrPortName+scsiAttIntrPortIdentifier */ + memset(buf, 0, 64); + if (tpg->se_tpg_tfo->sess_get_initiator_sid != NULL) + tpg->se_tpg_tfo->sess_get_initiator_sid(se_sess, buf, 64); + + ret = snprintf(page, PAGE_SIZE, "%s+i+%s\n", nacl->initiatorname, buf); + spin_unlock_irq(&nacl->nacl_sess_lock); + return ret; +} + +CONFIGFS_ATTR_RO(target_stat_iport_, inst); +CONFIGFS_ATTR_RO(target_stat_iport_, dev); +CONFIGFS_ATTR_RO(target_stat_iport_, port); +CONFIGFS_ATTR_RO(target_stat_iport_, indx); +CONFIGFS_ATTR_RO(target_stat_iport_, port_auth_indx); +CONFIGFS_ATTR_RO(target_stat_iport_, port_ident); + +static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = { + &target_stat_iport_attr_inst, + &target_stat_iport_attr_dev, + &target_stat_iport_attr_port, + &target_stat_iport_attr_indx, + &target_stat_iport_attr_port_auth_indx, + &target_stat_iport_attr_port_ident, + NULL, +}; + +static const struct config_item_type target_stat_scsi_att_intr_port_cit = { + .ct_attrs = target_stat_scsi_ath_intr_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_fabric_configfs.c:target_fabric_make_mappedlun() to setup + * the target MappedLUN statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *lacl) +{ + config_group_init_type_name(&lacl->ml_stat_grps.scsi_auth_intr_group, + "scsi_auth_intr", &target_stat_scsi_auth_intr_cit); + configfs_add_default_group(&lacl->ml_stat_grps.scsi_auth_intr_group, + &lacl->ml_stat_grps.stat_group); + + config_group_init_type_name(&lacl->ml_stat_grps.scsi_att_intr_port_group, + "scsi_att_intr_port", &target_stat_scsi_att_intr_port_cit); + configfs_add_default_group(&lacl->ml_stat_grps.scsi_att_intr_port_group, + &lacl->ml_stat_grps.stat_group); +} |