diff options
Diffstat (limited to 'drivers/target/target_core_mib.c')
| -rw-r--r-- | drivers/target/target_core_mib.c | 1078 |
1 files changed, 1078 insertions, 0 deletions
diff --git a/drivers/target/target_core_mib.c b/drivers/target/target_core_mib.c new file mode 100644 index 000000000000..d5a48aa0d2d1 --- /dev/null +++ b/drivers/target/target_core_mib.c @@ -0,0 +1,1078 @@ +/******************************************************************************* + * Filename: target_core_mib.c + * + * Copyright (c) 2006-2007 SBE, Inc. All Rights Reserved. + * Copyright (c) 2007-2010 Rising Tide Systems + * Copyright (c) 2008-2010 Linux-iSCSI.org + * + * Nicholas A. Bellinger <nab@linux-iscsi.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + ******************************************************************************/ + + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/string.h> +#include <linux/version.h> +#include <generated/utsrelease.h> +#include <linux/utsname.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/blkdev.h> +#include <scsi/scsi.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> + +#include <target/target_core_base.h> +#include <target/target_core_transport.h> +#include <target/target_core_fabric_ops.h> +#include <target/target_core_configfs.h> + +#include "target_core_hba.h" +#include "target_core_mib.h" + +/* SCSI mib table index */ +static struct scsi_index_table scsi_index_table; + +#ifndef INITIAL_JIFFIES +#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) +#endif + +/* SCSI Instance Table */ +#define SCSI_INST_SW_INDEX 1 +#define SCSI_TRANSPORT_INDEX 1 + +#define NONE "None" +#define ISPRINT(a) ((a >= ' ') && (a <= '~')) + +static inline int list_is_first(const struct list_head *list, + const struct list_head *head) +{ + return list->prev == head; +} + +static void *locate_hba_start( + struct seq_file *seq, + loff_t *pos) +{ + spin_lock(&se_global->g_device_lock); + return seq_list_start(&se_global->g_se_dev_list, *pos); +} + +static void *locate_hba_next( + struct seq_file *seq, + void *v, + loff_t *pos) +{ + return seq_list_next(v, &se_global->g_se_dev_list, pos); +} + +static void locate_hba_stop(struct seq_file *seq, void *v) +{ + spin_unlock(&se_global->g_device_lock); +} + +/**************************************************************************** + * SCSI MIB Tables + ****************************************************************************/ + +/* + * SCSI Instance Table + */ +static void *scsi_inst_seq_start( + struct seq_file *seq, + loff_t *pos) +{ + spin_lock(&se_global->hba_lock); + return seq_list_start(&se_global->g_hba_list, *pos); +} + +static void *scsi_inst_seq_next( + struct seq_file *seq, + void *v, + loff_t *pos) +{ + return seq_list_next(v, &se_global->g_hba_list, pos); +} + +static void scsi_inst_seq_stop(struct seq_file *seq, void *v) +{ + spin_unlock(&se_global->hba_lock); +} + +static int scsi_inst_seq_show(struct seq_file *seq, void *v) +{ + struct se_hba *hba = list_entry(v, struct se_hba, hba_list); + + if (list_is_first(&hba->hba_list, &se_global->g_hba_list)) + seq_puts(seq, "inst sw_indx\n"); + + seq_printf(seq, "%u %u\n", hba->hba_index, SCSI_INST_SW_INDEX); + seq_printf(seq, "plugin: %s version: %s\n", + hba->transport->name, TARGET_CORE_VERSION); + + return 0; +} + +static const struct seq_operations scsi_inst_seq_ops = { + .start = scsi_inst_seq_start, + .next = scsi_inst_seq_next, + .stop = scsi_inst_seq_stop, + .show = scsi_inst_seq_show +}; + +static int scsi_inst_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_inst_seq_ops); +} + +static const struct file_operations scsi_inst_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_inst_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Device Table + */ +static void *scsi_dev_seq_start(struct seq_file *seq, loff_t *pos) +{ + return locate_hba_start(seq, pos); +} + +static void *scsi_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return locate_hba_next(seq, v, pos); +} + +static void scsi_dev_seq_stop(struct seq_file *seq, void *v) +{ + locate_hba_stop(seq, v); +} + +static int scsi_dev_seq_show(struct seq_file *seq, void *v) +{ + struct se_hba *hba; + struct se_subsystem_dev *se_dev = list_entry(v, struct se_subsystem_dev, + g_se_dev_list); + struct se_device *dev = se_dev->se_dev_ptr; + char str[28]; + int k; + + if (list_is_first(&se_dev->g_se_dev_list, &se_global->g_se_dev_list)) + seq_puts(seq, "inst indx role ports\n"); + + if (!(dev)) + return 0; + + hba = dev->se_hba; + if (!(hba)) { + /* Log error ? */ + return 0; + } + + seq_printf(seq, "%u %u %s %u\n", hba->hba_index, + dev->dev_index, "Target", dev->dev_port_count); + + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + + /* vendor */ + for (k = 0; k < 8; k++) + str[k] = ISPRINT(DEV_T10_WWN(dev)->vendor[k]) ? + DEV_T10_WWN(dev)->vendor[k] : 0x20; + str[k] = 0x20; + + /* model */ + for (k = 0; k < 16; k++) + str[k+9] = ISPRINT(DEV_T10_WWN(dev)->model[k]) ? + DEV_T10_WWN(dev)->model[k] : 0x20; + str[k + 9] = 0; + + seq_printf(seq, "dev_alias: %s\n", str); + + return 0; +} + +static const struct seq_operations scsi_dev_seq_ops = { + .start = scsi_dev_seq_start, + .next = scsi_dev_seq_next, + .stop = scsi_dev_seq_stop, + .show = scsi_dev_seq_show +}; + +static int scsi_dev_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_dev_seq_ops); +} + +static const struct file_operations scsi_dev_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_dev_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Port Table + */ +static void *scsi_port_seq_start(struct seq_file *seq, loff_t *pos) +{ + return locate_hba_start(seq, pos); +} + +static void *scsi_port_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return locate_hba_next(seq, v, pos); +} + +static void scsi_port_seq_stop(struct seq_file *seq, void *v) +{ + locate_hba_stop(seq, v); +} + +static int scsi_port_seq_show(struct seq_file *seq, void *v) +{ + struct se_hba *hba; + struct se_subsystem_dev *se_dev = list_entry(v, struct se_subsystem_dev, + g_se_dev_list); + struct se_device *dev = se_dev->se_dev_ptr; + struct se_port *sep, *sep_tmp; + + if (list_is_first(&se_dev->g_se_dev_list, &se_global->g_se_dev_list)) + seq_puts(seq, "inst device indx role busy_count\n"); + + if (!(dev)) + return 0; + + hba = dev->se_hba; + if (!(hba)) { + /* Log error ? */ + return 0; + } + + /* FIXME: scsiPortBusyStatuses count */ + spin_lock(&dev->se_port_lock); + list_for_each_entry_safe(sep, sep_tmp, &dev->dev_sep_list, sep_list) { + seq_printf(seq, "%u %u %u %s%u %u\n", hba->hba_index, + dev->dev_index, sep->sep_index, "Device", + dev->dev_index, 0); + } + spin_unlock(&dev->se_port_lock); + + return 0; +} + +static const struct seq_operations scsi_port_seq_ops = { + .start = scsi_port_seq_start, + .next = scsi_port_seq_next, + .stop = scsi_port_seq_stop, + .show = scsi_port_seq_show +}; + +static int scsi_port_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_port_seq_ops); +} + +static const struct file_operations scsi_port_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_port_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Transport Table + */ +static void *scsi_transport_seq_start(struct seq_file *seq, loff_t *pos) +{ + return locate_hba_start(seq, pos); +} + +static void *scsi_transport_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return locate_hba_next(seq, v, pos); +} + +static void scsi_transport_seq_stop(struct seq_file *seq, void *v) +{ + locate_hba_stop(seq, v); +} + +static int scsi_transport_seq_show(struct seq_file *seq, void *v) +{ + struct se_hba *hba; + struct se_subsystem_dev *se_dev = list_entry(v, struct se_subsystem_dev, + g_se_dev_list); + struct se_device *dev = se_dev->se_dev_ptr; + struct se_port *se, *se_tmp; + struct se_portal_group *tpg; + struct t10_wwn *wwn; + char buf[64]; + + if (list_is_first(&se_dev->g_se_dev_list, &se_global->g_se_dev_list)) + seq_puts(seq, "inst device indx dev_name\n"); + + if (!(dev)) + return 0; + + hba = dev->se_hba; + if (!(hba)) { + /* Log error ? */ + return 0; + } + + wwn = DEV_T10_WWN(dev); + + spin_lock(&dev->se_port_lock); + list_for_each_entry_safe(se, se_tmp, &dev->dev_sep_list, sep_list) { + tpg = se->sep_tpg; + sprintf(buf, "scsiTransport%s", + TPG_TFO(tpg)->get_fabric_name()); + + seq_printf(seq, "%u %s %u %s+%s\n", + hba->hba_index, /* scsiTransportIndex */ + buf, /* scsiTransportType */ + (TPG_TFO(tpg)->tpg_get_inst_index != NULL) ? + TPG_TFO(tpg)->tpg_get_inst_index(tpg) : + 0, + TPG_TFO(tpg)->tpg_get_wwn(tpg), + (strlen(wwn->unit_serial)) ? + /* scsiTransportDevName */ + wwn->unit_serial : wwn->vendor); + } + spin_unlock(&dev->se_port_lock); + + return 0; +} + +static const struct seq_operations scsi_transport_seq_ops = { + .start = scsi_transport_seq_start, + .next = scsi_transport_seq_next, + .stop = scsi_transport_seq_stop, + .show = scsi_transport_seq_show +}; + +static int scsi_transport_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_transport_seq_ops); +} + +static const struct file_operations scsi_transport_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_transport_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Target Device Table + */ +static void *scsi_tgt_dev_seq_start(struct seq_file *seq, loff_t *pos) +{ + return locate_hba_start(seq, pos); +} + +static void *scsi_tgt_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return locate_hba_next(seq, v, pos); +} + +static void scsi_tgt_dev_seq_stop(struct seq_file *seq, void *v) +{ + locate_hba_stop(seq, v); +} + + +#define LU_COUNT 1 /* for now */ +static int scsi_tgt_dev_seq_show(struct seq_file *seq, void *v) +{ + struct se_hba *hba; + struct se_subsystem_dev *se_dev = list_entry(v, struct se_subsystem_dev, + g_se_dev_list); + struct se_device *dev = se_dev->se_dev_ptr; + int non_accessible_lus = 0; + char status[16]; + + if (list_is_first(&se_dev->g_se_dev_list, &se_global->g_se_dev_list)) + seq_puts(seq, "inst indx num_LUs status non_access_LUs" + " resets\n"); + + if (!(dev)) + return 0; + + hba = dev->se_hba; + if (!(hba)) { + /* Log error ? */ + return 0; + } + + switch (dev->dev_status) { + case TRANSPORT_DEVICE_ACTIVATED: + strcpy(status, "activated"); + break; + case TRANSPORT_DEVICE_DEACTIVATED: + strcpy(status, "deactivated"); + non_accessible_lus = 1; + break; + case TRANSPORT_DEVICE_SHUTDOWN: + strcpy(status, "shutdown"); + non_accessible_lus = 1; + break; + case TRANSPORT_DEVICE_OFFLINE_ACTIVATED: + case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED: + strcpy(status, "offline"); + non_accessible_lus = 1; + break; + default: + sprintf(status, "unknown(%d)", dev->dev_status); + non_accessible_lus = 1; + } + + seq_printf(seq, "%u %u %u %s %u %u\n", + hba->hba_index, dev->dev_index, LU_COUNT, + status, non_accessible_lus, dev->num_resets); + + return 0; +} + +static const struct seq_operations scsi_tgt_dev_seq_ops = { + .start = scsi_tgt_dev_seq_start, + .next = scsi_tgt_dev_seq_next, + .stop = scsi_tgt_dev_seq_stop, + .show = scsi_tgt_dev_seq_show +}; + +static int scsi_tgt_dev_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_tgt_dev_seq_ops); +} + +static const struct file_operations scsi_tgt_dev_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_tgt_dev_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Target Port Table + */ +static void *scsi_tgt_port_seq_start(struct seq_file *seq, loff_t *pos) +{ + return locate_hba_start(seq, pos); +} + +static void *scsi_tgt_port_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return locate_hba_next(seq, v, pos); +} + +static void scsi_tgt_port_seq_stop(struct seq_file *seq, void *v) +{ + locate_hba_stop(seq, v); +} + +static int scsi_tgt_port_seq_show(struct seq_file *seq, void *v) +{ + struct se_hba *hba; + struct se_subsystem_dev *se_dev = list_entry(v, struct se_subsystem_dev, + g_se_dev_list); + struct se_device *dev = se_dev->se_dev_ptr; + struct se_port *sep, *sep_tmp; + struct se_portal_group *tpg; + u32 rx_mbytes, tx_mbytes; + unsigned long long num_cmds; + char buf[64]; + + if (list_is_first(&se_dev->g_se_dev_list, &se_global->g_se_dev_list)) + seq_puts(seq, "inst device indx name port_index in_cmds" + " write_mbytes read_mbytes hs_in_cmds\n"); + + if (!(dev)) + return 0; + + hba = dev->se_hba; + if (!(hba)) { + /* Log error ? */ + return 0; + } + + spin_lock(&dev->se_port_lock); + list_for_each_entry_safe(sep, sep_tmp, &dev->dev_sep_list, sep_list) { + tpg = sep->sep_tpg; + sprintf(buf, "%sPort#", + TPG_TFO(tpg)->get_fabric_name()); + + seq_printf(seq, "%u %u %u %s%d %s%s%d ", + hba->hba_index, + dev->dev_index, + sep->sep_index, + buf, sep->sep_index, + TPG_TFO(tpg)->tpg_get_wwn(tpg), "+t+", + TPG_TFO(tpg)->tpg_get_tag(tpg)); + + spin_lock(&sep->sep_lun->lun_sep_lock); + num_cmds = sep->sep_stats.cmd_pdus; + rx_mbytes = (sep->sep_stats.rx_data_octets >> 20); + tx_mbytes = (sep->sep_stats.tx_data_octets >> 20); + spin_unlock(&sep->sep_lun->lun_sep_lock); + + seq_printf(seq, "%llu %u %u %u\n", num_cmds, + rx_mbytes, tx_mbytes, 0); + } + spin_unlock(&dev->se_port_lock); + + return 0; +} + +static const struct seq_operations scsi_tgt_port_seq_ops = { + .start = scsi_tgt_port_seq_start, + .next = scsi_tgt_port_seq_next, + .stop = scsi_tgt_port_seq_stop, + .show = scsi_tgt_port_seq_show +}; + +static int scsi_tgt_port_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_tgt_port_seq_ops); +} + +static const struct file_operations scsi_tgt_port_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_tgt_port_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Authorized Initiator Table: + * It contains the SCSI Initiators authorized to be attached to one of the + * local Target ports. + * Iterates through all active TPGs and extracts the info from the ACLs + */ +static void *scsi_auth_intr_seq_start(struct seq_file *seq, loff_t *pos) +{ + spin_lock_bh(&se_global->se_tpg_lock); + return seq_list_start(&se_global->g_se_tpg_list, *pos); +} + +static void *scsi_auth_intr_seq_next(struct seq_file *seq, void *v, + loff_t *pos) +{ + return seq_list_next(v, &se_global->g_se_tpg_list, pos); +} + +static void scsi_auth_intr_seq_stop(struct seq_file *seq, void *v) +{ + spin_unlock_bh(&se_global->se_tpg_lock); +} + +static int scsi_auth_intr_seq_show(struct seq_file *seq, void *v) +{ + struct se_portal_group *se_tpg = list_entry(v, struct se_portal_group, + se_tpg_list); + struct se_dev_entry *deve; + struct se_lun *lun; + struct se_node_acl *se_nacl; + int j; + + if (list_is_first(&se_tpg->se_tpg_list, + &se_global->g_se_tpg_list)) + seq_puts(seq, "inst dev port indx dev_or_port intr_name " + "map_indx att_count num_cmds read_mbytes " + "write_mbytes hs_num_cmds creation_time row_status\n"); + + if (!(se_tpg)) + return 0; + + spin_lock(&se_tpg->acl_node_lock); + list_for_each_entry(se_nacl, &se_tpg->acl_node_list, acl_list) { + + atomic_inc(&se_nacl->mib_ref_count); + smp_mb__after_atomic_inc(); + spin_unlock(&se_tpg->acl_node_lock); + + spin_lock_irq(&se_nacl->device_list_lock); + for (j = 0; j < TRANSPORT_MAX_LUNS_PER_TPG; j++) { + deve = &se_nacl->device_list[j]; + if (!(deve->lun_flags & + TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) || + (!deve->se_lun)) + continue; + lun = deve->se_lun; + if (!lun->lun_se_dev) + continue; + + seq_printf(seq, "%u %u %u %u %u %s %u %u %u %u %u %u" + " %u %s\n", + /* scsiInstIndex */ + (TPG_TFO(se_tpg)->tpg_get_inst_index != NULL) ? + TPG_TFO(se_tpg)->tpg_get_inst_index(se_tpg) : + 0, + /* scsiDeviceIndex */ + lun->lun_se_dev->dev_index, + /* scsiAuthIntrTgtPortIndex */ + TPG_TFO(se_tpg)->tpg_get_tag(se_tpg), + /* scsiAuthIntrIndex */ + se_nacl->acl_index, + /* scsiAuthIntrDevOrPort */ + 1, + /* scsiAuthIntrName */ + se_nacl->initiatorname[0] ? + se_nacl->initiatorname : NONE, + /* FIXME: scsiAuthIntrLunMapIndex */ + 0, + /* scsiAuthIntrAttachedTimes */ + deve->attach_count, + /* scsiAuthIntrOutCommands */ + deve->total_cmds, + /* scsiAuthIntrReadMegaBytes */ + (u32)(deve->read_bytes >> 20), + /* scsiAuthIntrWrittenMegaBytes */ + (u32)(deve->write_bytes >> 20), + /* FIXME: scsiAuthIntrHSOutCommands */ + 0, + /* scsiAuthIntrLastCreation */ + (u32)(((u32)deve->creation_time - + INITIAL_JIFFIES) * 100 / HZ), + /* FIXME: scsiAuthIntrRowStatus */ + "Ready"); + } + spin_unlock_irq(&se_nacl->device_list_lock); + + spin_lock(&se_tpg->acl_node_lock); + atomic_dec(&se_nacl->mib_ref_count); + smp_mb__after_atomic_dec(); + } + spin_unlock(&se_tpg->acl_node_lock); + + return 0; +} + +static const struct seq_operations scsi_auth_intr_seq_ops = { + .start = scsi_auth_intr_seq_start, + .next = scsi_auth_intr_seq_next, + .stop = scsi_auth_intr_seq_stop, + .show = scsi_auth_intr_seq_show +}; + +static int scsi_auth_intr_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_auth_intr_seq_ops); +} + +static const struct file_operations scsi_auth_intr_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_auth_intr_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Attached Initiator Port Table: + * It lists the SCSI Initiators attached to one of the local Target ports. + * Iterates through all active TPGs and use active sessions from each TPG + * to list the info fo this table. + */ +static void *scsi_att_intr_port_seq_start(struct seq_file *seq, loff_t *pos) +{ + spin_lock_bh(&se_global->se_tpg_lock); + return seq_list_start(&se_global->g_se_tpg_list, *pos); +} + +static void *scsi_att_intr_port_seq_next(struct seq_file *seq, void *v, + loff_t *pos) +{ + return seq_list_next(v, &se_global->g_se_tpg_list, pos); +} + +static void scsi_att_intr_port_seq_stop(struct seq_file *seq, void *v) +{ + spin_unlock_bh(&se_global->se_tpg_lock); +} + +static int scsi_att_intr_port_seq_show(struct seq_file *seq, void *v) +{ + struct se_portal_group *se_tpg = list_entry(v, struct se_portal_group, + se_tpg_list); + struct se_dev_entry *deve; + struct se_lun *lun; + struct se_node_acl *se_nacl; + struct se_session *se_sess; + unsigned char buf[64]; + int j; + + if (list_is_first(&se_tpg->se_tpg_list, + &se_global->g_se_tpg_list)) + seq_puts(seq, "inst dev port indx port_auth_indx port_name" + " port_ident\n"); + + if (!(se_tpg)) + return 0; + + spin_lock(&se_tpg->session_lock); + list_for_each_entry(se_sess, &se_tpg->tpg_sess_list, sess_list) { + if ((TPG_TFO(se_tpg)->sess_logged_in(se_sess)) || + (!se_sess->se_node_acl) || + (!se_sess->se_node_acl->device_list)) + continue; + + atomic_inc(&se_sess->mib_ref_count); + smp_mb__after_atomic_inc(); + se_nacl = se_sess->se_node_acl; + atomic_inc(&se_nacl->mib_ref_count); + smp_mb__after_atomic_inc(); + spin_unlock(&se_tpg->session_lock); + + spin_lock_irq(&se_nacl->device_list_lock); + for (j = 0; j < TRANSPORT_MAX_LUNS_PER_TPG; j++) { + deve = &se_nacl->device_list[j]; + if (!(deve->lun_flags & + TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) || + (!deve->se_lun)) + continue; + + lun = deve->se_lun; + if (!lun->lun_se_dev) + continue; + + memset(buf, 0, 64); + if (TPG_TFO(se_tpg)->sess_get_initiator_sid != NULL) + TPG_TFO(se_tpg)->sess_get_initiator_sid( + se_sess, (unsigned char *)&buf[0], 64); + + seq_printf(seq, "%u %u %u %u %u %s+i+%s\n", + /* scsiInstIndex */ + (TPG_TFO(se_tpg)->tpg_get_inst_index != NULL) ? + TPG_TFO(se_tpg)->tpg_get_inst_index(se_tpg) : + 0, + /* scsiDeviceIndex */ + lun->lun_se_dev->dev_index, + /* scsiPortIndex */ + TPG_TFO(se_tpg)->tpg_get_tag(se_tpg), + /* scsiAttIntrPortIndex */ + (TPG_TFO(se_tpg)->sess_get_index != NULL) ? + TPG_TFO(se_tpg)->sess_get_index(se_sess) : + 0, + /* scsiAttIntrPortAuthIntrIdx */ + se_nacl->acl_index, + /* scsiAttIntrPortName */ + se_nacl->initiatorname[0] ? + se_nacl->initiatorname : NONE, + /* scsiAttIntrPortIdentifier */ + buf); + } + spin_unlock_irq(&se_nacl->device_list_lock); + + spin_lock(&se_tpg->session_lock); + atomic_dec(&se_nacl->mib_ref_count); + smp_mb__after_atomic_dec(); + atomic_dec(&se_sess->mib_ref_count); + smp_mb__after_atomic_dec(); + } + spin_unlock(&se_tpg->session_lock); + + return 0; +} + +static const struct seq_operations scsi_att_intr_port_seq_ops = { + .start = scsi_att_intr_port_seq_start, + .next = scsi_att_intr_port_seq_next, + .stop = scsi_att_intr_port_seq_stop, + .show = scsi_att_intr_port_seq_show +}; + +static int scsi_att_intr_port_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_att_intr_port_seq_ops); +} + +static const struct file_operations scsi_att_intr_port_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_att_intr_port_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * SCSI Logical Unit Table + */ +static void *scsi_lu_seq_start(struct seq_file *seq, loff_t *pos) +{ + return locate_hba_start(seq, pos); +} + +static void *scsi_lu_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return locate_hba_next(seq, v, pos); +} + +static void scsi_lu_seq_stop(struct seq_file *seq, void *v) +{ + locate_hba_stop(seq, v); +} + +#define SCSI_LU_INDEX 1 +static int scsi_lu_seq_show(struct seq_file *seq, void *v) +{ + struct se_hba *hba; + struct se_subsystem_dev *se_dev = list_entry(v, struct se_subsystem_dev, + g_se_dev_list); + struct se_device *dev = se_dev->se_dev_ptr; + int j; + char str[28]; + + if (list_is_first(&se_dev->g_se_dev_list, &se_global->g_se_dev_list)) + seq_puts(seq, "inst dev indx LUN lu_name vend prod rev" + " dev_type status state-bit num_cmds read_mbytes" + " write_mbytes resets full_stat hs_num_cmds creation_time\n"); + + if (!(dev)) + return 0; + + hba = dev->se_hba; + if (!(hba)) { + /* Log error ? */ + return 0; + } + + /* Fix LU state, if we can read it from the device */ + seq_printf(seq, "%u %u %u %llu %s", hba->hba_index, + dev->dev_index, SCSI_LU_INDEX, + (unsigned long long)0, /* FIXME: scsiLuDefaultLun */ + (strlen(DEV_T10_WWN(dev)->unit_serial)) ? + /* scsiLuWwnName */ + (char *)&DEV_T10_WWN(dev)->unit_serial[0] : + "None"); + + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + /* scsiLuVendorId */ + for (j = 0; j < 8; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->vendor[j]) ? + DEV_T10_WWN(dev)->vendor[j] : 0x20; + str[8] = 0; + seq_printf(seq, " %s", str); + + /* scsiLuProductId */ + for (j = 0; j < 16; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->model[j]) ? + DEV_T10_WWN(dev)->model[j] : 0x20; + str[16] = 0; + seq_printf(seq, " %s", str); + + /* scsiLuRevisionId */ + for (j = 0; j < 4; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->revision[j]) ? + DEV_T10_WWN(dev)->revision[j] : 0x20; + str[4] = 0; + seq_printf(seq, " %s", str); + + seq_printf(seq, " %u %s %s %llu %u %u %u %u %u %u\n", + /* scsiLuPeripheralType */ + TRANSPORT(dev)->get_device_type(dev), + (dev->dev_status == TRANSPORT_DEVICE_ACTIVATED) ? + "available" : "notavailable", /* scsiLuStatus */ + "exposed", /* scsiLuState */ + (unsigned long long)dev->num_cmds, + /* scsiLuReadMegaBytes */ + (u32)(dev->read_bytes >> 20), + /* scsiLuWrittenMegaBytes */ + (u32)(dev->write_bytes >> 20), + dev->num_resets, /* scsiLuInResets */ + 0, /* scsiLuOutTaskSetFullStatus */ + 0, /* scsiLuHSInCommands */ + (u32)(((u32)dev->creation_time - INITIAL_JIFFIES) * + 100 / HZ)); + + return 0; +} + +static const struct seq_operations scsi_lu_seq_ops = { + .start = scsi_lu_seq_start, + .next = scsi_lu_seq_next, + .stop = scsi_lu_seq_stop, + .show = scsi_lu_seq_show +}; + +static int scsi_lu_seq_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &scsi_lu_seq_ops); +} + +static const struct file_operations scsi_lu_seq_fops = { + .owner = THIS_MODULE, + .open = scsi_lu_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/****************************************************************************/ + +/* + * Remove proc fs entries + */ +void remove_scsi_target_mib(void) +{ + remove_proc_entry("scsi_target/mib/scsi_inst", NULL); + remove_proc_entry("scsi_target/mib/scsi_dev", NULL); + remove_proc_entry("scsi_target/mib/scsi_port", NULL); + remove_proc_entry("scsi_target/mib/scsi_transport", NULL); + remove_proc_entry("scsi_target/mib/scsi_tgt_dev", NULL); + remove_proc_entry("scsi_target/mib/scsi_tgt_port", NULL); + remove_proc_entry("scsi_target/mib/scsi_auth_intr", NULL); + remove_proc_entry("scsi_target/mib/scsi_att_intr_port", NULL); + remove_proc_entry("scsi_target/mib/scsi_lu", NULL); + remove_proc_entry("scsi_target/mib", NULL); +} + +/* + * Create proc fs entries for the mib tables + */ +int init_scsi_target_mib(void) +{ + struct proc_dir_entry *dir_entry; + struct proc_dir_entry *scsi_inst_entry; + struct proc_dir_entry *scsi_dev_entry; + struct proc_dir_entry *scsi_port_entry; + struct proc_dir_entry *scsi_transport_entry; + struct proc_dir_entry *scsi_tgt_dev_entry; + struct proc_dir_entry *scsi_tgt_port_entry; + struct proc_dir_entry *scsi_auth_intr_entry; + struct proc_dir_entry *scsi_att_intr_port_entry; + struct proc_dir_entry *scsi_lu_entry; + + dir_entry = proc_mkdir("scsi_target/mib", NULL); + if (!(dir_entry)) { + printk(KERN_ERR "proc_mkdir() failed.\n"); + return -1; + } + + scsi_inst_entry = + create_proc_entry("scsi_target/mib/scsi_inst", 0, NULL); + if (scsi_inst_entry) + scsi_inst_entry->proc_fops = &scsi_inst_seq_fops; + else + goto error; + + scsi_dev_entry = + create_proc_entry("scsi_target/mib/scsi_dev", 0, NULL); + if (scsi_dev_entry) + scsi_dev_entry->proc_fops = &scsi_dev_seq_fops; + else + goto error; + + scsi_port_entry = + create_proc_entry("scsi_target/mib/scsi_port", 0, NULL); + if (scsi_port_entry) + scsi_port_entry->proc_fops = &scsi_port_seq_fops; + else + goto error; + + scsi_transport_entry = + create_proc_entry("scsi_target/mib/scsi_transport", 0, NULL); + if (scsi_transport_entry) + scsi_transport_entry->proc_fops = &scsi_transport_seq_fops; + else + goto error; + + scsi_tgt_dev_entry = + create_proc_entry("scsi_target/mib/scsi_tgt_dev", 0, NULL); + if (scsi_tgt_dev_entry) + scsi_tgt_dev_entry->proc_fops = &scsi_tgt_dev_seq_fops; + else + goto error; + + scsi_tgt_port_entry = + create_proc_entry("scsi_target/mib/scsi_tgt_port", 0, NULL); + if (scsi_tgt_port_entry) + scsi_tgt_port_entry->proc_fops = &scsi_tgt_port_seq_fops; + else + goto error; + + scsi_auth_intr_entry = + create_proc_entry("scsi_target/mib/scsi_auth_intr", 0, NULL); + if (scsi_auth_intr_entry) + scsi_auth_intr_entry->proc_fops = &scsi_auth_intr_seq_fops; + else + goto error; + + scsi_att_intr_port_entry = + create_proc_entry("scsi_target/mib/scsi_att_intr_port", 0, NULL); + if (scsi_att_intr_port_entry) + scsi_att_intr_port_entry->proc_fops = + &scsi_att_intr_port_seq_fops; + else + goto error; + + scsi_lu_entry = create_proc_entry("scsi_target/mib/scsi_lu", 0, NULL); + if (scsi_lu_entry) + scsi_lu_entry->proc_fops = &scsi_lu_seq_fops; + else + goto error; + + return 0; + +error: + printk(KERN_ERR "create_proc_entry() failed.\n"); + remove_scsi_target_mib(); + return -1; +} + +/* + * Initialize the index table for allocating unique row indexes to various mib + * tables + */ +void init_scsi_index_table(void) +{ + memset(&scsi_index_table, 0, sizeof(struct scsi_index_table)); + spin_lock_init(&scsi_index_table.lock); +} + +/* + * Allocate a new row index for the entry type specified + */ +u32 scsi_get_new_index(scsi_index_t type) +{ + u32 new_index; + + if ((type < 0) || (type >= SCSI_INDEX_TYPE_MAX)) { + printk(KERN_ERR "Invalid index type %d\n", type); + return -1; + } + + spin_lock(&scsi_index_table.lock); + new_index = ++scsi_index_table.scsi_mib_index[type]; + if (new_index == 0) + new_index = ++scsi_index_table.scsi_mib_index[type]; + spin_unlock(&scsi_index_table.lock); + + return new_index; +} +EXPORT_SYMBOL(scsi_get_new_index); |