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drivers/target/target_core_device.c
46.4 KB
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/******************************************************************************* * Filename: target_core_device.c (based on iscsi_target_device.c) * |
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* This file contains the TCM Virtual Device and Disk Transport |
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* agnostic related functions. * * Copyright (c) 2003, 2004, 2005 PyX Technologies, Inc. * Copyright (c) 2005-2006 SBE, Inc. All Rights Reserved. * Copyright (c) 2007-2010 Rising Tide Systems * Copyright (c) 2008-2010 Linux-iSCSI.org * * Nicholas A. Bellinger <nab@kernel.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/net.h> #include <linux/string.h> #include <linux/delay.h> #include <linux/timer.h> #include <linux/slab.h> #include <linux/spinlock.h> |
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#include <linux/kthread.h> #include <linux/in.h> |
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#include <linux/export.h> |
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#include <net/sock.h> #include <net/tcp.h> #include <scsi/scsi.h> |
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#include <scsi/scsi_device.h> |
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#include <target/target_core_base.h> #include <target/target_core_device.h> #include <target/target_core_tpg.h> #include <target/target_core_transport.h> #include <target/target_core_fabric_ops.h> #include "target_core_alua.h" #include "target_core_hba.h" #include "target_core_pr.h" #include "target_core_ua.h" static void se_dev_start(struct se_device *dev); static void se_dev_stop(struct se_device *dev); |
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static struct se_hba *lun0_hba; static struct se_subsystem_dev *lun0_su_dev; /* not static, needed by tpg.c */ struct se_device *g_lun0_dev; |
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int transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) |
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{ |
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struct se_lun *se_lun = NULL; |
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struct se_session *se_sess = se_cmd->se_sess; |
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struct se_device *dev; |
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unsigned long flags; |
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|
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if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) { se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN; se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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return -ENODEV; |
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} |
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spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
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se_cmd->se_deve = &se_sess->se_node_acl->device_list[unpacked_lun]; if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { struct se_dev_entry *deve = se_cmd->se_deve; deve->total_cmds++; deve->total_bytes += se_cmd->data_length; if ((se_cmd->data_direction == DMA_TO_DEVICE) && (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { se_cmd->scsi_sense_reason = TCM_WRITE_PROTECTED; se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" |
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" Access for 0x%08x ", se_cmd->se_tfo->get_fabric_name(), unpacked_lun); |
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spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
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return -EACCES; |
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} |
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if (se_cmd->data_direction == DMA_TO_DEVICE) deve->write_bytes += se_cmd->data_length; else if (se_cmd->data_direction == DMA_FROM_DEVICE) deve->read_bytes += se_cmd->data_length; |
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deve->deve_cmds++; |
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se_lun = deve->se_lun; se_cmd->se_lun = deve->se_lun; |
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se_cmd->pr_res_key = deve->pr_res_key; se_cmd->orig_fe_lun = unpacked_lun; |
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se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; } |
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spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
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if (!se_lun) { |
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/* * Use the se_portal_group->tpg_virt_lun0 to allow for * REPORT_LUNS, et al to be returned when no active * MappedLUN=0 exists for this Initiator Port. */ if (unpacked_lun != 0) { se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN; |
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se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
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" Access for 0x%08x ", |
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se_cmd->se_tfo->get_fabric_name(), |
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unpacked_lun); |
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return -ENODEV; } /* * Force WRITE PROTECT for virtual LUN 0 */ if ((se_cmd->data_direction != DMA_FROM_DEVICE) && (se_cmd->data_direction != DMA_NONE)) { se_cmd->scsi_sense_reason = TCM_WRITE_PROTECTED; se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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return -EACCES; |
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} |
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se_lun = &se_sess->se_tpg->tpg_virt_lun0; se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0; se_cmd->orig_fe_lun = 0; |
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se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; |
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} /* * Determine if the struct se_lun is online. |
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* FIXME: Check for LUN_RESET + UNIT Attention |
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*/ |
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if (se_dev_check_online(se_lun->lun_se_dev) != 0) { se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN; se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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return -ENODEV; |
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} |
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/* Directly associate cmd with se_dev */ se_cmd->se_dev = se_lun->lun_se_dev; /* TODO: get rid of this and use atomics for stats */ dev = se_lun->lun_se_dev; |
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spin_lock_irqsave(&dev->stats_lock, flags); |
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dev->num_cmds++; if (se_cmd->data_direction == DMA_TO_DEVICE) dev->write_bytes += se_cmd->data_length; else if (se_cmd->data_direction == DMA_FROM_DEVICE) dev->read_bytes += se_cmd->data_length; |
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spin_unlock_irqrestore(&dev->stats_lock, flags); |
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/* * Add the iscsi_cmd_t to the struct se_lun's cmd list. This list is used * for tracking state of struct se_cmds during LUN shutdown events. */ spin_lock_irqsave(&se_lun->lun_cmd_lock, flags); |
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list_add_tail(&se_cmd->se_lun_node, &se_lun->lun_cmd_list); |
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atomic_set(&se_cmd->transport_lun_active, 1); |
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spin_unlock_irqrestore(&se_lun->lun_cmd_lock, flags); return 0; } |
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EXPORT_SYMBOL(transport_lookup_cmd_lun); |
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|
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int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun) |
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{ |
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struct se_dev_entry *deve; struct se_lun *se_lun = NULL; |
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struct se_session *se_sess = se_cmd->se_sess; |
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struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; |
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unsigned long flags; |
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|
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if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) { se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN; se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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return -ENODEV; |
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} |
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spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
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se_cmd->se_deve = &se_sess->se_node_acl->device_list[unpacked_lun]; deve = se_cmd->se_deve; |
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if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
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se_tmr->tmr_lun = deve->se_lun; se_cmd->se_lun = deve->se_lun; se_lun = deve->se_lun; |
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se_cmd->pr_res_key = deve->pr_res_key; se_cmd->orig_fe_lun = unpacked_lun; |
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} |
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spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
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if (!se_lun) { |
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pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
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" Access for 0x%08x ", |
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se_cmd->se_tfo->get_fabric_name(), |
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unpacked_lun); se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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return -ENODEV; |
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} /* * Determine if the struct se_lun is online. |
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* FIXME: Check for LUN_RESET + UNIT Attention |
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*/ |
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if (se_dev_check_online(se_lun->lun_se_dev) != 0) { se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; |
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return -ENODEV; |
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} |
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/* Directly associate cmd with se_dev */ se_cmd->se_dev = se_lun->lun_se_dev; se_tmr->tmr_dev = se_lun->lun_se_dev; |
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spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags); |
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list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list); |
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spin_unlock_irqrestore(&se_tmr->tmr_dev->se_tmr_lock, flags); |
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return 0; } |
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EXPORT_SYMBOL(transport_lookup_tmr_lun); |
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/* * This function is called from core_scsi3_emulate_pro_register_and_move() * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_ref_count * when a matching rtpi is found. */ struct se_dev_entry *core_get_se_deve_from_rtpi( struct se_node_acl *nacl, u16 rtpi) { struct se_dev_entry *deve; struct se_lun *lun; struct se_port *port; struct se_portal_group *tpg = nacl->se_tpg; u32 i; spin_lock_irq(&nacl->device_list_lock); for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { deve = &nacl->device_list[i]; if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) continue; lun = deve->se_lun; |
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if (!lun) { pr_err("%s device entries device pointer is" |
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" NULL, but Initiator has access. ", |
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tpg->se_tpg_tfo->get_fabric_name()); |
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continue; } port = lun->lun_sep; |
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if (!port) { pr_err("%s device entries device pointer is" |
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" NULL, but Initiator has access. ", |
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tpg->se_tpg_tfo->get_fabric_name()); |
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continue; } if (port->sep_rtpi != rtpi) continue; atomic_inc(&deve->pr_ref_count); smp_mb__after_atomic_inc(); spin_unlock_irq(&nacl->device_list_lock); return deve; } spin_unlock_irq(&nacl->device_list_lock); return NULL; } int core_free_device_list_for_node( struct se_node_acl *nacl, struct se_portal_group *tpg) { struct se_dev_entry *deve; struct se_lun *lun; u32 i; if (!nacl->device_list) return 0; spin_lock_irq(&nacl->device_list_lock); for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { deve = &nacl->device_list[i]; if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) continue; if (!deve->se_lun) { |
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pr_err("%s device entries device pointer is" |
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" NULL, but Initiator has access. ", |
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tpg->se_tpg_tfo->get_fabric_name()); |
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continue; } lun = deve->se_lun; spin_unlock_irq(&nacl->device_list_lock); core_update_device_list_for_node(lun, NULL, deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg, 0); spin_lock_irq(&nacl->device_list_lock); } spin_unlock_irq(&nacl->device_list_lock); kfree(nacl->device_list); nacl->device_list = NULL; return 0; } void core_dec_lacl_count(struct se_node_acl *se_nacl, struct se_cmd *se_cmd) { struct se_dev_entry *deve; spin_lock_irq(&se_nacl->device_list_lock); deve = &se_nacl->device_list[se_cmd->orig_fe_lun]; deve->deve_cmds--; spin_unlock_irq(&se_nacl->device_list_lock); |
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} void core_update_device_list_access( u32 mapped_lun, u32 lun_access, struct se_node_acl *nacl) { struct se_dev_entry *deve; spin_lock_irq(&nacl->device_list_lock); deve = &nacl->device_list[mapped_lun]; if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; } else { deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; } spin_unlock_irq(&nacl->device_list_lock); |
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} /* core_update_device_list_for_node(): * * */ int core_update_device_list_for_node( struct se_lun *lun, struct se_lun_acl *lun_acl, u32 mapped_lun, u32 lun_access, struct se_node_acl *nacl, struct se_portal_group *tpg, int enable) { struct se_port *port = lun->lun_sep; struct se_dev_entry *deve = &nacl->device_list[mapped_lun]; int trans = 0; /* * If the MappedLUN entry is being disabled, the entry in * port->sep_alua_list must be removed now before clearing the * struct se_dev_entry pointers below as logic in * core_alua_do_transition_tg_pt() depends on these being present. */ |
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if (!enable) { |
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/* * deve->se_lun_acl will be NULL for demo-mode created LUNs |
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* that have not been explicitly concerted to MappedLUNs -> |
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* struct se_lun_acl, but we remove deve->alua_port_list from * port->sep_alua_list. This also means that active UAs and * NodeACL context specific PR metadata for demo-mode * MappedLUN *deve will be released below.. |
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*/ |
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spin_lock_bh(&port->sep_alua_lock); list_del(&deve->alua_port_list); spin_unlock_bh(&port->sep_alua_lock); } spin_lock_irq(&nacl->device_list_lock); if (enable) { /* * Check if the call is handling demo mode -> explict LUN ACL * transition. This transition must be for the same struct se_lun * + mapped_lun that was setup in demo mode.. */ if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { if (deve->se_lun_acl != NULL) { |
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pr_err("struct se_dev_entry->se_lun_acl" |
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" already set for demo mode -> explict" " LUN ACL transition "); |
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spin_unlock_irq(&nacl->device_list_lock); |
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return -EINVAL; |
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} if (deve->se_lun != lun) { |
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pr_err("struct se_dev_entry->se_lun does" |
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" match passed struct se_lun for demo mode" " -> explict LUN ACL transition "); |
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spin_unlock_irq(&nacl->device_list_lock); |
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return -EINVAL; |
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} deve->se_lun_acl = lun_acl; trans = 1; } else { deve->se_lun = lun; deve->se_lun_acl = lun_acl; deve->mapped_lun = mapped_lun; deve->lun_flags |= TRANSPORT_LUNFLAGS_INITIATOR_ACCESS; } if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; } else { deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; } if (trans) { spin_unlock_irq(&nacl->device_list_lock); return 0; } deve->creation_time = get_jiffies_64(); deve->attach_count++; spin_unlock_irq(&nacl->device_list_lock); spin_lock_bh(&port->sep_alua_lock); list_add_tail(&deve->alua_port_list, &port->sep_alua_list); spin_unlock_bh(&port->sep_alua_lock); return 0; } /* * Wait for any in process SPEC_I_PT=1 or REGISTER_AND_MOVE * PR operation to complete. */ spin_unlock_irq(&nacl->device_list_lock); while (atomic_read(&deve->pr_ref_count) != 0) cpu_relax(); spin_lock_irq(&nacl->device_list_lock); /* * Disable struct se_dev_entry LUN ACL mapping */ core_scsi3_ua_release_all(deve); deve->se_lun = NULL; deve->se_lun_acl = NULL; deve->lun_flags = 0; deve->creation_time = 0; deve->attach_count--; spin_unlock_irq(&nacl->device_list_lock); core_scsi3_free_pr_reg_from_nacl(lun->lun_se_dev, nacl); return 0; } /* core_clear_lun_from_tpg(): * * */ void core_clear_lun_from_tpg(struct se_lun *lun, struct se_portal_group *tpg) { struct se_node_acl *nacl; struct se_dev_entry *deve; u32 i; |
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spin_lock_irq(&tpg->acl_node_lock); |
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list_for_each_entry(nacl, &tpg->acl_node_list, acl_list) { |
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472 |
spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db8 [SCSI] target: Ad... |
473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 |
spin_lock_irq(&nacl->device_list_lock); for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { deve = &nacl->device_list[i]; if (lun != deve->se_lun) continue; spin_unlock_irq(&nacl->device_list_lock); core_update_device_list_for_node(lun, NULL, deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg, 0); spin_lock_irq(&nacl->device_list_lock); } spin_unlock_irq(&nacl->device_list_lock); |
28638887f target: Convert a... |
488 |
spin_lock_irq(&tpg->acl_node_lock); |
c66ac9db8 [SCSI] target: Ad... |
489 |
} |
28638887f target: Convert a... |
490 |
spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db8 [SCSI] target: Ad... |
491 492 493 494 495 496 497 |
} static struct se_port *core_alloc_port(struct se_device *dev) { struct se_port *port, *port_tmp; port = kzalloc(sizeof(struct se_port), GFP_KERNEL); |
6708bb27b target: Follow up... |
498 499 500 |
if (!port) { pr_err("Unable to allocate struct se_port "); |
e3d6f909e target: Core clea... |
501 |
return ERR_PTR(-ENOMEM); |
c66ac9db8 [SCSI] target: Ad... |
502 503 504 505 506 507 508 509 510 |
} INIT_LIST_HEAD(&port->sep_alua_list); INIT_LIST_HEAD(&port->sep_list); atomic_set(&port->sep_tg_pt_secondary_offline, 0); spin_lock_init(&port->sep_alua_lock); mutex_init(&port->sep_tg_pt_md_mutex); spin_lock(&dev->se_port_lock); if (dev->dev_port_count == 0x0000ffff) { |
6708bb27b target: Follow up... |
511 |
pr_warn("Reached dev->dev_port_count ==" |
c66ac9db8 [SCSI] target: Ad... |
512 513 514 |
" 0x0000ffff "); spin_unlock(&dev->se_port_lock); |
e3d6f909e target: Core clea... |
515 |
return ERR_PTR(-ENOSPC); |
c66ac9db8 [SCSI] target: Ad... |
516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 |
} again: /* * Allocate the next RELATIVE TARGET PORT IDENTIFER for this struct se_device * Here is the table from spc4r17 section 7.7.3.8. * * Table 473 -- RELATIVE TARGET PORT IDENTIFIER field * * Code Description * 0h Reserved * 1h Relative port 1, historically known as port A * 2h Relative port 2, historically known as port B * 3h to FFFFh Relative port 3 through 65 535 */ port->sep_rtpi = dev->dev_rpti_counter++; |
6708bb27b target: Follow up... |
531 |
if (!port->sep_rtpi) |
c66ac9db8 [SCSI] target: Ad... |
532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 |
goto again; list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) { /* * Make sure RELATIVE TARGET PORT IDENTIFER is unique * for 16-bit wrap.. */ if (port->sep_rtpi == port_tmp->sep_rtpi) goto again; } spin_unlock(&dev->se_port_lock); return port; } static void core_export_port( struct se_device *dev, struct se_portal_group *tpg, struct se_port *port, struct se_lun *lun) { |
e3d6f909e target: Core clea... |
553 |
struct se_subsystem_dev *su_dev = dev->se_sub_dev; |
c66ac9db8 [SCSI] target: Ad... |
554 555 556 557 558 559 560 561 562 563 564 |
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem = NULL; spin_lock(&dev->se_port_lock); spin_lock(&lun->lun_sep_lock); port->sep_tpg = tpg; port->sep_lun = lun; lun->lun_sep = port; spin_unlock(&lun->lun_sep_lock); list_add_tail(&port->sep_list, &dev->dev_sep_list); spin_unlock(&dev->se_port_lock); |
e3d6f909e target: Core clea... |
565 |
if (su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) { |
c66ac9db8 [SCSI] target: Ad... |
566 567 |
tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port); if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) { |
6708bb27b target: Follow up... |
568 |
pr_err("Unable to allocate t10_alua_tg_pt" |
c66ac9db8 [SCSI] target: Ad... |
569 570 571 572 573 574 |
"_gp_member_t "); return; } spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, |
e3d6f909e target: Core clea... |
575 |
su_dev->t10_alua.default_tg_pt_gp); |
c66ac9db8 [SCSI] target: Ad... |
576 |
spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); |
6708bb27b target: Follow up... |
577 |
pr_debug("%s/%s: Adding to default ALUA Target Port" |
c66ac9db8 [SCSI] target: Ad... |
578 579 |
" Group: alua/default_tg_pt_gp ", |
e3d6f909e target: Core clea... |
580 |
dev->transport->name, tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db8 [SCSI] target: Ad... |
581 582 583 584 585 586 587 588 589 590 |
} dev->dev_port_count++; port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFER */ } /* * Called with struct se_device->se_port_lock spinlock held. */ static void core_release_port(struct se_device *dev, struct se_port *port) |
5dd7ed2e8 [SCSI] target: Mi... |
591 |
__releases(&dev->se_port_lock) __acquires(&dev->se_port_lock) |
c66ac9db8 [SCSI] target: Ad... |
592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 |
{ /* * Wait for any port reference for PR ALL_TG_PT=1 operation * to complete in __core_scsi3_alloc_registration() */ spin_unlock(&dev->se_port_lock); if (atomic_read(&port->sep_tg_pt_ref_cnt)) cpu_relax(); spin_lock(&dev->se_port_lock); core_alua_free_tg_pt_gp_mem(port); list_del(&port->sep_list); dev->dev_port_count--; kfree(port); |
c66ac9db8 [SCSI] target: Ad... |
607 608 609 610 611 612 613 614 615 616 |
} int core_dev_export( struct se_device *dev, struct se_portal_group *tpg, struct se_lun *lun) { struct se_port *port; port = core_alloc_port(dev); |
e3d6f909e target: Core clea... |
617 618 |
if (IS_ERR(port)) return PTR_ERR(port); |
c66ac9db8 [SCSI] target: Ad... |
619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 |
lun->lun_se_dev = dev; se_dev_start(dev); atomic_inc(&dev->dev_export_obj.obj_access_count); core_export_port(dev, tpg, port, lun); return 0; } void core_dev_unexport( struct se_device *dev, struct se_portal_group *tpg, struct se_lun *lun) { struct se_port *port = lun->lun_sep; spin_lock(&lun->lun_sep_lock); if (lun->lun_se_dev == NULL) { spin_unlock(&lun->lun_sep_lock); return; } spin_unlock(&lun->lun_sep_lock); spin_lock(&dev->se_port_lock); atomic_dec(&dev->dev_export_obj.obj_access_count); core_release_port(dev, port); spin_unlock(&dev->se_port_lock); se_dev_stop(dev); lun->lun_se_dev = NULL; } |
e76a35d6c target: pass the ... |
650 |
int target_report_luns(struct se_task *se_task) |
c66ac9db8 [SCSI] target: Ad... |
651 |
{ |
e76a35d6c target: pass the ... |
652 |
struct se_cmd *se_cmd = se_task->task_se_cmd; |
c66ac9db8 [SCSI] target: Ad... |
653 654 |
struct se_dev_entry *deve; struct se_lun *se_lun; |
e3d6f909e target: Core clea... |
655 |
struct se_session *se_sess = se_cmd->se_sess; |
05d1c7c0d target: Make all ... |
656 |
unsigned char *buf; |
1078da163 [SCSI] target: Co... |
657 |
u32 cdb_offset = 0, lun_count = 0, offset = 8, i; |
c66ac9db8 [SCSI] target: Ad... |
658 |
|
05d1c7c0d target: Make all ... |
659 |
buf = transport_kmap_first_data_page(se_cmd); |
c66ac9db8 [SCSI] target: Ad... |
660 661 662 663 664 |
/* * If no struct se_session pointer is present, this struct se_cmd is * coming via a target_core_mod PASSTHROUGH op, and not through * a $FABRIC_MOD. In that case, report LUN=0 only. */ |
6708bb27b target: Follow up... |
665 |
if (!se_sess) { |
1078da163 [SCSI] target: Co... |
666 |
int_to_scsilun(0, (struct scsi_lun *)&buf[offset]); |
c66ac9db8 [SCSI] target: Ad... |
667 668 669 |
lun_count = 1; goto done; } |
e3d6f909e target: Core clea... |
670 |
spin_lock_irq(&se_sess->se_node_acl->device_list_lock); |
c66ac9db8 [SCSI] target: Ad... |
671 |
for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { |
e3d6f909e target: Core clea... |
672 |
deve = &se_sess->se_node_acl->device_list[i]; |
c66ac9db8 [SCSI] target: Ad... |
673 674 675 676 677 678 679 680 681 682 683 |
if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) continue; se_lun = deve->se_lun; /* * We determine the correct LUN LIST LENGTH even once we * have reached the initial allocation length. * See SPC2-R20 7.19. */ lun_count++; if ((cdb_offset + 8) >= se_cmd->data_length) continue; |
1078da163 [SCSI] target: Co... |
684 685 |
int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]); offset += 8; |
c66ac9db8 [SCSI] target: Ad... |
686 687 |
cdb_offset += 8; } |
e3d6f909e target: Core clea... |
688 |
spin_unlock_irq(&se_sess->se_node_acl->device_list_lock); |
c66ac9db8 [SCSI] target: Ad... |
689 690 691 692 693 |
/* * See SPC3 r07, page 159. */ done: |
05d1c7c0d target: Make all ... |
694 |
transport_kunmap_first_data_page(se_cmd); |
c66ac9db8 [SCSI] target: Ad... |
695 696 697 698 699 |
lun_count *= 8; buf[0] = ((lun_count >> 24) & 0xff); buf[1] = ((lun_count >> 16) & 0xff); buf[2] = ((lun_count >> 8) & 0xff); buf[3] = (lun_count & 0xff); |
d29a5b6ac target: remove SC... |
700 701 |
se_task->task_scsi_status = GOOD; transport_complete_task(se_task, 1); |
03e98c9eb target: Address l... |
702 |
return 0; |
c66ac9db8 [SCSI] target: Ad... |
703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 |
} /* se_release_device_for_hba(): * * */ void se_release_device_for_hba(struct se_device *dev) { struct se_hba *hba = dev->se_hba; if ((dev->dev_status & TRANSPORT_DEVICE_ACTIVATED) || (dev->dev_status & TRANSPORT_DEVICE_DEACTIVATED) || (dev->dev_status & TRANSPORT_DEVICE_SHUTDOWN) || (dev->dev_status & TRANSPORT_DEVICE_OFFLINE_ACTIVATED) || (dev->dev_status & TRANSPORT_DEVICE_OFFLINE_DEACTIVATED)) se_dev_stop(dev); if (dev->dev_ptr) { kthread_stop(dev->process_thread); if (dev->transport->free_device) dev->transport->free_device(dev->dev_ptr); } spin_lock(&hba->device_lock); list_del(&dev->dev_list); hba->dev_count--; spin_unlock(&hba->device_lock); core_scsi3_free_all_registrations(dev); se_release_vpd_for_dev(dev); |
c66ac9db8 [SCSI] target: Ad... |
733 |
kfree(dev); |
c66ac9db8 [SCSI] target: Ad... |
734 735 736 737 738 |
} void se_release_vpd_for_dev(struct se_device *dev) { struct t10_vpd *vpd, *vpd_tmp; |
e3d6f909e target: Core clea... |
739 |
spin_lock(&dev->se_sub_dev->t10_wwn.t10_vpd_lock); |
c66ac9db8 [SCSI] target: Ad... |
740 |
list_for_each_entry_safe(vpd, vpd_tmp, |
e3d6f909e target: Core clea... |
741 |
&dev->se_sub_dev->t10_wwn.t10_vpd_list, vpd_list) { |
c66ac9db8 [SCSI] target: Ad... |
742 743 744 |
list_del(&vpd->vpd_list); kfree(vpd); } |
e3d6f909e target: Core clea... |
745 |
spin_unlock(&dev->se_sub_dev->t10_wwn.t10_vpd_lock); |
c66ac9db8 [SCSI] target: Ad... |
746 |
} |
c66ac9db8 [SCSI] target: Ad... |
747 748 749 750 751 752 |
/* se_free_virtual_device(): * * Used for IBLOCK, RAMDISK, and FILEIO Transport Drivers. */ int se_free_virtual_device(struct se_device *dev, struct se_hba *hba) { |
05aea6e7e [SCSI] target: Re... |
753 754 |
if (!list_empty(&dev->dev_sep_list)) dump_stack(); |
c66ac9db8 [SCSI] target: Ad... |
755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 |
core_alua_free_lu_gp_mem(dev); se_release_device_for_hba(dev); return 0; } static void se_dev_start(struct se_device *dev) { struct se_hba *hba = dev->se_hba; spin_lock(&hba->device_lock); atomic_inc(&dev->dev_obj.obj_access_count); if (atomic_read(&dev->dev_obj.obj_access_count) == 1) { if (dev->dev_status & TRANSPORT_DEVICE_DEACTIVATED) { dev->dev_status &= ~TRANSPORT_DEVICE_DEACTIVATED; dev->dev_status |= TRANSPORT_DEVICE_ACTIVATED; } else if (dev->dev_status & TRANSPORT_DEVICE_OFFLINE_DEACTIVATED) { dev->dev_status &= ~TRANSPORT_DEVICE_OFFLINE_DEACTIVATED; dev->dev_status |= TRANSPORT_DEVICE_OFFLINE_ACTIVATED; } } spin_unlock(&hba->device_lock); } static void se_dev_stop(struct se_device *dev) { struct se_hba *hba = dev->se_hba; spin_lock(&hba->device_lock); atomic_dec(&dev->dev_obj.obj_access_count); if (atomic_read(&dev->dev_obj.obj_access_count) == 0) { if (dev->dev_status & TRANSPORT_DEVICE_ACTIVATED) { dev->dev_status &= ~TRANSPORT_DEVICE_ACTIVATED; dev->dev_status |= TRANSPORT_DEVICE_DEACTIVATED; } else if (dev->dev_status & TRANSPORT_DEVICE_OFFLINE_ACTIVATED) { dev->dev_status &= ~TRANSPORT_DEVICE_OFFLINE_ACTIVATED; dev->dev_status |= TRANSPORT_DEVICE_OFFLINE_DEACTIVATED; } } spin_unlock(&hba->device_lock); |
c66ac9db8 [SCSI] target: Ad... |
799 800 801 802 |
} int se_dev_check_online(struct se_device *dev) { |
56e34ee2a target: Make se_d... |
803 |
unsigned long flags; |
c66ac9db8 [SCSI] target: Ad... |
804 |
int ret; |
56e34ee2a target: Make se_d... |
805 |
spin_lock_irqsave(&dev->dev_status_lock, flags); |
c66ac9db8 [SCSI] target: Ad... |
806 807 |
ret = ((dev->dev_status & TRANSPORT_DEVICE_ACTIVATED) || (dev->dev_status & TRANSPORT_DEVICE_DEACTIVATED)) ? 0 : 1; |
56e34ee2a target: Make se_d... |
808 |
spin_unlock_irqrestore(&dev->dev_status_lock, flags); |
c66ac9db8 [SCSI] target: Ad... |
809 810 811 812 813 814 815 816 817 818 819 820 821 822 |
return ret; } int se_dev_check_shutdown(struct se_device *dev) { int ret; spin_lock_irq(&dev->dev_status_lock); ret = (dev->dev_status & TRANSPORT_DEVICE_SHUTDOWN); spin_unlock_irq(&dev->dev_status_lock); return ret; } |
525a48a21 target: Fix task ... |
823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 |
u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size) { u32 tmp, aligned_max_sectors; /* * Limit max_sectors to a PAGE_SIZE aligned value for modern * transport_allocate_data_tasks() operation. */ tmp = rounddown((max_sectors * block_size), PAGE_SIZE); aligned_max_sectors = (tmp / block_size); if (max_sectors != aligned_max_sectors) { printk(KERN_INFO "Rounding down aligned max_sectors from %u" " to %u ", max_sectors, aligned_max_sectors); return aligned_max_sectors; } return max_sectors; } |
c66ac9db8 [SCSI] target: Ad... |
841 842 843 844 845 |
void se_dev_set_default_attribs( struct se_device *dev, struct se_dev_limits *dev_limits) { struct queue_limits *limits = &dev_limits->limits; |
e3d6f909e target: Core clea... |
846 847 848 849 850 851 852 853 854 855 856 |
dev->se_sub_dev->se_dev_attrib.emulate_dpo = DA_EMULATE_DPO; dev->se_sub_dev->se_dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE; dev->se_sub_dev->se_dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ; dev->se_sub_dev->se_dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE; dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL; dev->se_sub_dev->se_dev_attrib.emulate_tas = DA_EMULATE_TAS; dev->se_sub_dev->se_dev_attrib.emulate_tpu = DA_EMULATE_TPU; dev->se_sub_dev->se_dev_attrib.emulate_tpws = DA_EMULATE_TPWS; dev->se_sub_dev->se_dev_attrib.emulate_reservations = DA_EMULATE_RESERVATIONS; dev->se_sub_dev->se_dev_attrib.emulate_alua = DA_EMULATE_ALUA; dev->se_sub_dev->se_dev_attrib.enforce_pr_isids = DA_ENFORCE_PR_ISIDS; |
e22a7f075 target: Implement... |
857 |
dev->se_sub_dev->se_dev_attrib.is_nonrot = DA_IS_NONROT; |
5de619a31 target: Update QU... |
858 |
dev->se_sub_dev->se_dev_attrib.emulate_rest_reord = DA_EMULATE_REST_REORD; |
c66ac9db8 [SCSI] target: Ad... |
859 860 861 862 863 |
/* * The TPU=1 and TPWS=1 settings will be set in TCM/IBLOCK * iblock_create_virtdevice() from struct queue_limits values * if blk_queue_discard()==1 */ |
e3d6f909e target: Core clea... |
864 865 866 867 868 |
dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count = DA_MAX_UNMAP_LBA_COUNT; dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count = DA_MAX_UNMAP_BLOCK_DESC_COUNT; dev->se_sub_dev->se_dev_attrib.unmap_granularity = DA_UNMAP_GRANULARITY_DEFAULT; dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment = |
c66ac9db8 [SCSI] target: Ad... |
869 870 871 872 |
DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT; /* * block_size is based on subsystem plugin dependent requirements. */ |
e3d6f909e target: Core clea... |
873 874 |
dev->se_sub_dev->se_dev_attrib.hw_block_size = limits->logical_block_size; dev->se_sub_dev->se_dev_attrib.block_size = limits->logical_block_size; |
c66ac9db8 [SCSI] target: Ad... |
875 876 877 |
/* * max_sectors is based on subsystem plugin dependent requirements. */ |
e3d6f909e target: Core clea... |
878 |
dev->se_sub_dev->se_dev_attrib.hw_max_sectors = limits->max_hw_sectors; |
525a48a21 target: Fix task ... |
879 880 881 882 883 |
/* * Align max_sectors down to PAGE_SIZE to follow transport_allocate_data_tasks() */ limits->max_sectors = se_dev_align_max_sectors(limits->max_sectors, limits->logical_block_size); |
e3d6f909e target: Core clea... |
884 |
dev->se_sub_dev->se_dev_attrib.max_sectors = limits->max_sectors; |
c66ac9db8 [SCSI] target: Ad... |
885 886 887 888 |
/* * Set optimal_sectors from max_sectors, which can be lowered via * configfs. */ |
e3d6f909e target: Core clea... |
889 |
dev->se_sub_dev->se_dev_attrib.optimal_sectors = limits->max_sectors; |
c66ac9db8 [SCSI] target: Ad... |
890 891 892 |
/* * queue_depth is based on subsystem plugin dependent requirements. */ |
e3d6f909e target: Core clea... |
893 894 |
dev->se_sub_dev->se_dev_attrib.hw_queue_depth = dev_limits->hw_queue_depth; dev->se_sub_dev->se_dev_attrib.queue_depth = dev_limits->queue_depth; |
c66ac9db8 [SCSI] target: Ad... |
895 |
} |
c66ac9db8 [SCSI] target: Ad... |
896 897 898 899 |
int se_dev_set_max_unmap_lba_count( struct se_device *dev, u32 max_unmap_lba_count) { |
e3d6f909e target: Core clea... |
900 |
dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count = max_unmap_lba_count; |
6708bb27b target: Follow up... |
901 902 |
pr_debug("dev[%p]: Set max_unmap_lba_count: %u ", |
e3d6f909e target: Core clea... |
903 |
dev, dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count); |
c66ac9db8 [SCSI] target: Ad... |
904 905 906 907 908 909 910 |
return 0; } int se_dev_set_max_unmap_block_desc_count( struct se_device *dev, u32 max_unmap_block_desc_count) { |
e3d6f909e target: Core clea... |
911 912 |
dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count = max_unmap_block_desc_count; |
6708bb27b target: Follow up... |
913 914 |
pr_debug("dev[%p]: Set max_unmap_block_desc_count: %u ", |
e3d6f909e target: Core clea... |
915 |
dev, dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count); |
c66ac9db8 [SCSI] target: Ad... |
916 917 918 919 920 921 922 |
return 0; } int se_dev_set_unmap_granularity( struct se_device *dev, u32 unmap_granularity) { |
e3d6f909e target: Core clea... |
923 |
dev->se_sub_dev->se_dev_attrib.unmap_granularity = unmap_granularity; |
6708bb27b target: Follow up... |
924 925 |
pr_debug("dev[%p]: Set unmap_granularity: %u ", |
e3d6f909e target: Core clea... |
926 |
dev, dev->se_sub_dev->se_dev_attrib.unmap_granularity); |
c66ac9db8 [SCSI] target: Ad... |
927 928 929 930 931 932 933 |
return 0; } int se_dev_set_unmap_granularity_alignment( struct se_device *dev, u32 unmap_granularity_alignment) { |
e3d6f909e target: Core clea... |
934 |
dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment = unmap_granularity_alignment; |
6708bb27b target: Follow up... |
935 936 |
pr_debug("dev[%p]: Set unmap_granularity_alignment: %u ", |
e3d6f909e target: Core clea... |
937 |
dev, dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment); |
c66ac9db8 [SCSI] target: Ad... |
938 939 940 941 942 |
return 0; } int se_dev_set_emulate_dpo(struct se_device *dev, int flag) { |
f55918fa3 target: clean up ... |
943 |
if (flag != 0 && flag != 1) { |
6708bb27b target: Follow up... |
944 945 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
946 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
947 |
} |
f55918fa3 target: clean up ... |
948 |
|
c638830d0 target: Don't ret... |
949 950 951 952 953 954 955 |
if (flag) { pr_err("dpo_emulated not supported "); return -EINVAL; } return 0; |
c66ac9db8 [SCSI] target: Ad... |
956 957 958 959 |
} int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) { |
f55918fa3 target: clean up ... |
960 |
if (flag != 0 && flag != 1) { |
6708bb27b target: Follow up... |
961 962 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
963 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
964 |
} |
f55918fa3 target: clean up ... |
965 |
|
c638830d0 target: Don't ret... |
966 |
if (flag && dev->transport->fua_write_emulated == 0) { |
f55918fa3 target: clean up ... |
967 968 |
pr_err("fua_write_emulated not supported "); |
e3d6f909e target: Core clea... |
969 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
970 |
} |
e3d6f909e target: Core clea... |
971 |
dev->se_sub_dev->se_dev_attrib.emulate_fua_write = flag; |
6708bb27b target: Follow up... |
972 973 |
pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d ", |
e3d6f909e target: Core clea... |
974 |
dev, dev->se_sub_dev->se_dev_attrib.emulate_fua_write); |
c66ac9db8 [SCSI] target: Ad... |
975 976 977 978 979 |
return 0; } int se_dev_set_emulate_fua_read(struct se_device *dev, int flag) { |
f55918fa3 target: clean up ... |
980 |
if (flag != 0 && flag != 1) { |
6708bb27b target: Follow up... |
981 982 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
983 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
984 |
} |
f55918fa3 target: clean up ... |
985 |
|
c638830d0 target: Don't ret... |
986 987 988 989 990 991 992 |
if (flag) { pr_err("ua read emulated not supported "); return -EINVAL; } return 0; |
c66ac9db8 [SCSI] target: Ad... |
993 994 995 996 |
} int se_dev_set_emulate_write_cache(struct se_device *dev, int flag) { |
f55918fa3 target: clean up ... |
997 |
if (flag != 0 && flag != 1) { |
6708bb27b target: Follow up... |
998 999 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
1000 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1001 |
} |
c638830d0 target: Don't ret... |
1002 |
if (flag && dev->transport->write_cache_emulated == 0) { |
f55918fa3 target: clean up ... |
1003 1004 |
pr_err("write_cache_emulated not supported "); |
e3d6f909e target: Core clea... |
1005 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1006 |
} |
e3d6f909e target: Core clea... |
1007 |
dev->se_sub_dev->se_dev_attrib.emulate_write_cache = flag; |
6708bb27b target: Follow up... |
1008 1009 |
pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d ", |
e3d6f909e target: Core clea... |
1010 |
dev, dev->se_sub_dev->se_dev_attrib.emulate_write_cache); |
c66ac9db8 [SCSI] target: Ad... |
1011 1012 1013 1014 1015 1016 |
return 0; } int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *dev, int flag) { if ((flag != 0) && (flag != 1) && (flag != 2)) { |
6708bb27b target: Follow up... |
1017 1018 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
1019 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1020 1021 1022 |
} if (atomic_read(&dev->dev_export_obj.obj_access_count)) { |
6708bb27b target: Follow up... |
1023 |
pr_err("dev[%p]: Unable to change SE Device" |
c66ac9db8 [SCSI] target: Ad... |
1024 1025 1026 1027 |
" UA_INTRLCK_CTRL while dev_export_obj: %d count" " exists ", dev, atomic_read(&dev->dev_export_obj.obj_access_count)); |
e3d6f909e target: Core clea... |
1028 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1029 |
} |
e3d6f909e target: Core clea... |
1030 |
dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl = flag; |
6708bb27b target: Follow up... |
1031 1032 |
pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d ", |
e3d6f909e target: Core clea... |
1033 |
dev, dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl); |
c66ac9db8 [SCSI] target: Ad... |
1034 1035 1036 1037 1038 1039 1040 |
return 0; } int se_dev_set_emulate_tas(struct se_device *dev, int flag) { if ((flag != 0) && (flag != 1)) { |
6708bb27b target: Follow up... |
1041 1042 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
1043 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1044 1045 1046 |
} if (atomic_read(&dev->dev_export_obj.obj_access_count)) { |
6708bb27b target: Follow up... |
1047 |
pr_err("dev[%p]: Unable to change SE Device TAS while" |
c66ac9db8 [SCSI] target: Ad... |
1048 1049 1050 |
" dev_export_obj: %d count exists ", dev, atomic_read(&dev->dev_export_obj.obj_access_count)); |
e3d6f909e target: Core clea... |
1051 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1052 |
} |
e3d6f909e target: Core clea... |
1053 |
dev->se_sub_dev->se_dev_attrib.emulate_tas = flag; |
6708bb27b target: Follow up... |
1054 1055 |
pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s ", |
e3d6f909e target: Core clea... |
1056 |
dev, (dev->se_sub_dev->se_dev_attrib.emulate_tas) ? "Enabled" : "Disabled"); |
c66ac9db8 [SCSI] target: Ad... |
1057 1058 1059 1060 1061 1062 1063 |
return 0; } int se_dev_set_emulate_tpu(struct se_device *dev, int flag) { if ((flag != 0) && (flag != 1)) { |
6708bb27b target: Follow up... |
1064 1065 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
1066 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1067 1068 1069 1070 1071 |
} /* * We expect this value to be non-zero when generic Block Layer * Discard supported is detected iblock_create_virtdevice(). */ |
c638830d0 target: Don't ret... |
1072 |
if (flag && !dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) { |
6708bb27b target: Follow up... |
1073 1074 |
pr_err("Generic Block Discard not supported "); |
c66ac9db8 [SCSI] target: Ad... |
1075 1076 |
return -ENOSYS; } |
e3d6f909e target: Core clea... |
1077 |
dev->se_sub_dev->se_dev_attrib.emulate_tpu = flag; |
6708bb27b target: Follow up... |
1078 1079 |
pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d ", |
c66ac9db8 [SCSI] target: Ad... |
1080 1081 1082 1083 1084 1085 1086 |
dev, flag); return 0; } int se_dev_set_emulate_tpws(struct se_device *dev, int flag) { if ((flag != 0) && (flag != 1)) { |
6708bb27b target: Follow up... |
1087 1088 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
1089 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1090 1091 1092 1093 1094 |
} /* * We expect this value to be non-zero when generic Block Layer * Discard supported is detected iblock_create_virtdevice(). */ |
c638830d0 target: Don't ret... |
1095 |
if (flag && !dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) { |
6708bb27b target: Follow up... |
1096 1097 |
pr_err("Generic Block Discard not supported "); |
c66ac9db8 [SCSI] target: Ad... |
1098 1099 |
return -ENOSYS; } |
e3d6f909e target: Core clea... |
1100 |
dev->se_sub_dev->se_dev_attrib.emulate_tpws = flag; |
6708bb27b target: Follow up... |
1101 1102 |
pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d ", |
c66ac9db8 [SCSI] target: Ad... |
1103 1104 1105 1106 1107 1108 1109 |
dev, flag); return 0; } int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag) { if ((flag != 0) && (flag != 1)) { |
6708bb27b target: Follow up... |
1110 1111 |
pr_err("Illegal value %d ", flag); |
e3d6f909e target: Core clea... |
1112 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1113 |
} |
e3d6f909e target: Core clea... |
1114 |
dev->se_sub_dev->se_dev_attrib.enforce_pr_isids = flag; |
6708bb27b target: Follow up... |
1115 1116 |
pr_debug("dev[%p]: SE Device enforce_pr_isids bit: %s ", dev, |
e3d6f909e target: Core clea... |
1117 |
(dev->se_sub_dev->se_dev_attrib.enforce_pr_isids) ? "Enabled" : "Disabled"); |
c66ac9db8 [SCSI] target: Ad... |
1118 1119 |
return 0; } |
e22a7f075 target: Implement... |
1120 1121 1122 1123 1124 1125 1126 1127 |
int se_dev_set_is_nonrot(struct se_device *dev, int flag) { if ((flag != 0) && (flag != 1)) { printk(KERN_ERR "Illegal value %d ", flag); return -EINVAL; } dev->se_sub_dev->se_dev_attrib.is_nonrot = flag; |
5de619a31 target: Update QU... |
1128 1129 |
pr_debug("dev[%p]: SE Device is_nonrot bit: %d ", |
e22a7f075 target: Implement... |
1130 1131 1132 |
dev, flag); return 0; } |
5de619a31 target: Update QU... |
1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 |
int se_dev_set_emulate_rest_reord(struct se_device *dev, int flag) { if (flag != 0) { printk(KERN_ERR "dev[%p]: SE Device emulatation of restricted" " reordering not implemented ", dev); return -ENOSYS; } dev->se_sub_dev->se_dev_attrib.emulate_rest_reord = flag; pr_debug("dev[%p]: SE Device emulate_rest_reord: %d ", dev, flag); return 0; } |
c66ac9db8 [SCSI] target: Ad... |
1146 1147 1148 1149 1150 1151 1152 1153 |
/* * Note, this can only be called on unexported SE Device Object. */ int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth) { u32 orig_queue_depth = dev->queue_depth; if (atomic_read(&dev->dev_export_obj.obj_access_count)) { |
6708bb27b target: Follow up... |
1154 |
pr_err("dev[%p]: Unable to change SE Device TCQ while" |
c66ac9db8 [SCSI] target: Ad... |
1155 1156 1157 |
" dev_export_obj: %d count exists ", dev, atomic_read(&dev->dev_export_obj.obj_access_count)); |
e3d6f909e target: Core clea... |
1158 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1159 |
} |
6708bb27b target: Follow up... |
1160 1161 |
if (!queue_depth) { pr_err("dev[%p]: Illegal ZERO value for queue" |
c66ac9db8 [SCSI] target: Ad... |
1162 1163 |
"_depth ", dev); |
e3d6f909e target: Core clea... |
1164 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1165 |
} |
e3d6f909e target: Core clea... |
1166 1167 |
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { if (queue_depth > dev->se_sub_dev->se_dev_attrib.hw_queue_depth) { |
6708bb27b target: Follow up... |
1168 |
pr_err("dev[%p]: Passed queue_depth: %u" |
c66ac9db8 [SCSI] target: Ad... |
1169 1170 1171 |
" exceeds TCM/SE_Device TCQ: %u ", dev, queue_depth, |
e3d6f909e target: Core clea... |
1172 1173 |
dev->se_sub_dev->se_dev_attrib.hw_queue_depth); return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1174 1175 |
} } else { |
e3d6f909e target: Core clea... |
1176 1177 |
if (queue_depth > dev->se_sub_dev->se_dev_attrib.queue_depth) { if (queue_depth > dev->se_sub_dev->se_dev_attrib.hw_queue_depth) { |
6708bb27b target: Follow up... |
1178 |
pr_err("dev[%p]: Passed queue_depth:" |
c66ac9db8 [SCSI] target: Ad... |
1179 1180 1181 |
" %u exceeds TCM/SE_Device MAX" " TCQ: %u ", dev, queue_depth, |
e3d6f909e target: Core clea... |
1182 1183 |
dev->se_sub_dev->se_dev_attrib.hw_queue_depth); return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1184 1185 1186 |
} } } |
e3d6f909e target: Core clea... |
1187 |
dev->se_sub_dev->se_dev_attrib.queue_depth = dev->queue_depth = queue_depth; |
c66ac9db8 [SCSI] target: Ad... |
1188 1189 1190 1191 |
if (queue_depth > orig_queue_depth) atomic_add(queue_depth - orig_queue_depth, &dev->depth_left); else if (queue_depth < orig_queue_depth) atomic_sub(orig_queue_depth - queue_depth, &dev->depth_left); |
6708bb27b target: Follow up... |
1192 1193 |
pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u ", |
c66ac9db8 [SCSI] target: Ad... |
1194 1195 1196 1197 1198 1199 1200 1201 1202 |
dev, queue_depth); return 0; } int se_dev_set_max_sectors(struct se_device *dev, u32 max_sectors) { int force = 0; /* Force setting for VDEVS */ if (atomic_read(&dev->dev_export_obj.obj_access_count)) { |
6708bb27b target: Follow up... |
1203 |
pr_err("dev[%p]: Unable to change SE Device" |
c66ac9db8 [SCSI] target: Ad... |
1204 1205 1206 |
" max_sectors while dev_export_obj: %d count exists ", dev, atomic_read(&dev->dev_export_obj.obj_access_count)); |
e3d6f909e target: Core clea... |
1207 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1208 |
} |
6708bb27b target: Follow up... |
1209 1210 |
if (!max_sectors) { pr_err("dev[%p]: Illegal ZERO value for" |
c66ac9db8 [SCSI] target: Ad... |
1211 1212 |
" max_sectors ", dev); |
e3d6f909e target: Core clea... |
1213 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1214 1215 |
} if (max_sectors < DA_STATUS_MAX_SECTORS_MIN) { |
6708bb27b target: Follow up... |
1216 |
pr_err("dev[%p]: Passed max_sectors: %u less than" |
c66ac9db8 [SCSI] target: Ad... |
1217 1218 1219 |
" DA_STATUS_MAX_SECTORS_MIN: %u ", dev, max_sectors, DA_STATUS_MAX_SECTORS_MIN); |
e3d6f909e target: Core clea... |
1220 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1221 |
} |
e3d6f909e target: Core clea... |
1222 1223 |
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { if (max_sectors > dev->se_sub_dev->se_dev_attrib.hw_max_sectors) { |
6708bb27b target: Follow up... |
1224 |
pr_err("dev[%p]: Passed max_sectors: %u" |
c66ac9db8 [SCSI] target: Ad... |
1225 1226 1227 |
" greater than TCM/SE_Device max_sectors:" " %u ", dev, max_sectors, |
e3d6f909e target: Core clea... |
1228 1229 |
dev->se_sub_dev->se_dev_attrib.hw_max_sectors); return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1230 1231 |
} } else { |
6708bb27b target: Follow up... |
1232 |
if (!force && (max_sectors > |
e3d6f909e target: Core clea... |
1233 |
dev->se_sub_dev->se_dev_attrib.hw_max_sectors)) { |
6708bb27b target: Follow up... |
1234 |
pr_err("dev[%p]: Passed max_sectors: %u" |
c66ac9db8 [SCSI] target: Ad... |
1235 1236 1237 |
" greater than TCM/SE_Device max_sectors" ": %u, use force=1 to override. ", dev, |
e3d6f909e target: Core clea... |
1238 1239 |
max_sectors, dev->se_sub_dev->se_dev_attrib.hw_max_sectors); return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1240 1241 |
} if (max_sectors > DA_STATUS_MAX_SECTORS_MAX) { |
6708bb27b target: Follow up... |
1242 |
pr_err("dev[%p]: Passed max_sectors: %u" |
c66ac9db8 [SCSI] target: Ad... |
1243 1244 1245 1246 |
" greater than DA_STATUS_MAX_SECTORS_MAX:" " %u ", dev, max_sectors, DA_STATUS_MAX_SECTORS_MAX); |
e3d6f909e target: Core clea... |
1247 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1248 1249 |
} } |
525a48a21 target: Fix task ... |
1250 1251 1252 1253 1254 |
/* * Align max_sectors down to PAGE_SIZE to follow transport_allocate_data_tasks() */ max_sectors = se_dev_align_max_sectors(max_sectors, dev->se_sub_dev->se_dev_attrib.block_size); |
c66ac9db8 [SCSI] target: Ad... |
1255 |
|
e3d6f909e target: Core clea... |
1256 |
dev->se_sub_dev->se_dev_attrib.max_sectors = max_sectors; |
6708bb27b target: Follow up... |
1257 1258 |
pr_debug("dev[%p]: SE Device max_sectors changed to %u ", |
c66ac9db8 [SCSI] target: Ad... |
1259 1260 1261 1262 1263 1264 1265 |
dev, max_sectors); return 0; } int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors) { if (atomic_read(&dev->dev_export_obj.obj_access_count)) { |
6708bb27b target: Follow up... |
1266 |
pr_err("dev[%p]: Unable to change SE Device" |
c66ac9db8 [SCSI] target: Ad... |
1267 1268 1269 1270 1271 |
" optimal_sectors while dev_export_obj: %d count exists ", dev, atomic_read(&dev->dev_export_obj.obj_access_count)); return -EINVAL; } |
e3d6f909e target: Core clea... |
1272 |
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
6708bb27b target: Follow up... |
1273 |
pr_err("dev[%p]: Passed optimal_sectors cannot be" |
c66ac9db8 [SCSI] target: Ad... |
1274 1275 1276 1277 |
" changed for TCM/pSCSI ", dev); return -EINVAL; } |
e3d6f909e target: Core clea... |
1278 |
if (optimal_sectors > dev->se_sub_dev->se_dev_attrib.max_sectors) { |
6708bb27b target: Follow up... |
1279 |
pr_err("dev[%p]: Passed optimal_sectors %u cannot be" |
c66ac9db8 [SCSI] target: Ad... |
1280 1281 |
" greater than max_sectors: %u ", dev, |
e3d6f909e target: Core clea... |
1282 |
optimal_sectors, dev->se_sub_dev->se_dev_attrib.max_sectors); |
c66ac9db8 [SCSI] target: Ad... |
1283 1284 |
return -EINVAL; } |
e3d6f909e target: Core clea... |
1285 |
dev->se_sub_dev->se_dev_attrib.optimal_sectors = optimal_sectors; |
6708bb27b target: Follow up... |
1286 1287 |
pr_debug("dev[%p]: SE Device optimal_sectors changed to %u ", |
c66ac9db8 [SCSI] target: Ad... |
1288 1289 1290 1291 1292 1293 1294 |
dev, optimal_sectors); return 0; } int se_dev_set_block_size(struct se_device *dev, u32 block_size) { if (atomic_read(&dev->dev_export_obj.obj_access_count)) { |
6708bb27b target: Follow up... |
1295 |
pr_err("dev[%p]: Unable to change SE Device block_size" |
c66ac9db8 [SCSI] target: Ad... |
1296 1297 1298 |
" while dev_export_obj: %d count exists ", dev, atomic_read(&dev->dev_export_obj.obj_access_count)); |
e3d6f909e target: Core clea... |
1299 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1300 1301 1302 1303 1304 1305 |
} if ((block_size != 512) && (block_size != 1024) && (block_size != 2048) && (block_size != 4096)) { |
6708bb27b target: Follow up... |
1306 |
pr_err("dev[%p]: Illegal value for block_device: %u" |
c66ac9db8 [SCSI] target: Ad... |
1307 1308 1309 |
" for SE device, must be 512, 1024, 2048 or 4096 ", dev, block_size); |
e3d6f909e target: Core clea... |
1310 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1311 |
} |
e3d6f909e target: Core clea... |
1312 |
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
6708bb27b target: Follow up... |
1313 |
pr_err("dev[%p]: Not allowed to change block_size for" |
c66ac9db8 [SCSI] target: Ad... |
1314 1315 1316 |
" Physical Device, use for Linux/SCSI to change" " block_size for underlying hardware ", dev); |
e3d6f909e target: Core clea... |
1317 |
return -EINVAL; |
c66ac9db8 [SCSI] target: Ad... |
1318 |
} |
e3d6f909e target: Core clea... |
1319 |
dev->se_sub_dev->se_dev_attrib.block_size = block_size; |
6708bb27b target: Follow up... |
1320 1321 |
pr_debug("dev[%p]: SE Device block_size changed to %u ", |
c66ac9db8 [SCSI] target: Ad... |
1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 |
dev, block_size); return 0; } struct se_lun *core_dev_add_lun( struct se_portal_group *tpg, struct se_hba *hba, struct se_device *dev, u32 lun) { struct se_lun *lun_p; u32 lun_access = 0; if (atomic_read(&dev->dev_access_obj.obj_access_count) != 0) { |
6708bb27b target: Follow up... |
1336 1337 |
pr_err("Unable to export struct se_device while dev_access_obj: %d ", |
c66ac9db8 [SCSI] target: Ad... |
1338 1339 1340 1341 1342 |
atomic_read(&dev->dev_access_obj.obj_access_count)); return NULL; } lun_p = core_tpg_pre_addlun(tpg, lun); |
6708bb27b target: Follow up... |
1343 |
if ((IS_ERR(lun_p)) || !lun_p) |
c66ac9db8 [SCSI] target: Ad... |
1344 1345 1346 1347 1348 1349 1350 1351 1352 |
return NULL; if (dev->dev_flags & DF_READ_ONLY) lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; else lun_access = TRANSPORT_LUNFLAGS_READ_WRITE; if (core_tpg_post_addlun(tpg, lun_p, lun_access, dev) < 0) return NULL; |
6708bb27b target: Follow up... |
1353 |
pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from" |
e3d6f909e target: Core clea... |
1354 1355 1356 1357 |
" CORE HBA: %u ", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun_p->unpacked_lun, tpg->se_tpg_tfo->get_fabric_name(), hba->hba_id); |
c66ac9db8 [SCSI] target: Ad... |
1358 1359 1360 1361 |
/* * Update LUN maps for dynamically added initiators when * generate_node_acl is enabled. */ |
e3d6f909e target: Core clea... |
1362 |
if (tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) { |
c66ac9db8 [SCSI] target: Ad... |
1363 |
struct se_node_acl *acl; |
28638887f target: Convert a... |
1364 |
spin_lock_irq(&tpg->acl_node_lock); |
c66ac9db8 [SCSI] target: Ad... |
1365 |
list_for_each_entry(acl, &tpg->acl_node_list, acl_list) { |
052605c6c target: Make stan... |
1366 1367 1368 |
if (acl->dynamic_node_acl && (!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only || !tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg))) { |
28638887f target: Convert a... |
1369 |
spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db8 [SCSI] target: Ad... |
1370 |
core_tpg_add_node_to_devs(acl, tpg); |
28638887f target: Convert a... |
1371 |
spin_lock_irq(&tpg->acl_node_lock); |
c66ac9db8 [SCSI] target: Ad... |
1372 1373 |
} } |
28638887f target: Convert a... |
1374 |
spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db8 [SCSI] target: Ad... |
1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 |
} return lun_p; } /* core_dev_del_lun(): * * */ int core_dev_del_lun( struct se_portal_group *tpg, u32 unpacked_lun) { struct se_lun *lun; int ret = 0; lun = core_tpg_pre_dellun(tpg, unpacked_lun, &ret); |
6708bb27b target: Follow up... |
1392 |
if (!lun) |
c66ac9db8 [SCSI] target: Ad... |
1393 1394 1395 |
return ret; core_tpg_post_dellun(tpg, lun); |
6708bb27b target: Follow up... |
1396 |
pr_debug("%s_TPG[%u]_LUN[%u] - Deactivated %s Logical Unit from" |
e3d6f909e target: Core clea... |
1397 1398 1399 1400 |
" device object ", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db8 [SCSI] target: Ad... |
1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 |
return 0; } struct se_lun *core_get_lun_from_tpg(struct se_portal_group *tpg, u32 unpacked_lun) { struct se_lun *lun; spin_lock(&tpg->tpg_lun_lock); if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
6708bb27b target: Follow up... |
1411 |
pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS" |
c66ac9db8 [SCSI] target: Ad... |
1412 1413 |
"_PER_TPG-1: %u for Target Portal Group: %hu ", |
e3d6f909e target: Core clea... |
1414 |
tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
c66ac9db8 [SCSI] target: Ad... |
1415 |
TRANSPORT_MAX_LUNS_PER_TPG-1, |
e3d6f909e target: Core clea... |
1416 |
tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
c66ac9db8 [SCSI] target: Ad... |
1417 1418 1419 1420 1421 1422 |
spin_unlock(&tpg->tpg_lun_lock); return NULL; } lun = &tpg->tpg_lun_list[unpacked_lun]; if (lun->lun_status != TRANSPORT_LUN_STATUS_FREE) { |
6708bb27b target: Follow up... |
1423 |
pr_err("%s Logical Unit Number: %u is not free on" |
c66ac9db8 [SCSI] target: Ad... |
1424 1425 |
" Target Portal Group: %hu, ignoring request. ", |
e3d6f909e target: Core clea... |
1426 1427 |
tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
c66ac9db8 [SCSI] target: Ad... |
1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 |
spin_unlock(&tpg->tpg_lun_lock); return NULL; } spin_unlock(&tpg->tpg_lun_lock); return lun; } /* core_dev_get_lun(): * * */ static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked_lun) { struct se_lun *lun; spin_lock(&tpg->tpg_lun_lock); if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
6708bb27b target: Follow up... |
1446 |
pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER" |
c66ac9db8 [SCSI] target: Ad... |
1447 1448 |
"_TPG-1: %u for Target Portal Group: %hu ", |
e3d6f909e target: Core clea... |
1449 |
tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
c66ac9db8 [SCSI] target: Ad... |
1450 |
TRANSPORT_MAX_LUNS_PER_TPG-1, |
e3d6f909e target: Core clea... |
1451 |
tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
c66ac9db8 [SCSI] target: Ad... |
1452 1453 1454 1455 1456 1457 |
spin_unlock(&tpg->tpg_lun_lock); return NULL; } lun = &tpg->tpg_lun_list[unpacked_lun]; if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) { |
6708bb27b target: Follow up... |
1458 |
pr_err("%s Logical Unit Number: %u is not active on" |
c66ac9db8 [SCSI] target: Ad... |
1459 1460 |
" Target Portal Group: %hu, ignoring request. ", |
e3d6f909e target: Core clea... |
1461 1462 |
tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
c66ac9db8 [SCSI] target: Ad... |
1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 |
spin_unlock(&tpg->tpg_lun_lock); return NULL; } spin_unlock(&tpg->tpg_lun_lock); return lun; } struct se_lun_acl *core_dev_init_initiator_node_lun_acl( struct se_portal_group *tpg, u32 mapped_lun, char *initiatorname, int *ret) { struct se_lun_acl *lacl; struct se_node_acl *nacl; |
60d645a4e target: Fix incor... |
1479 |
if (strlen(initiatorname) >= TRANSPORT_IQN_LEN) { |
6708bb27b target: Follow up... |
1480 1481 |
pr_err("%s InitiatorName exceeds maximum size. ", |
e3d6f909e target: Core clea... |
1482 |
tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db8 [SCSI] target: Ad... |
1483 1484 1485 1486 |
*ret = -EOVERFLOW; return NULL; } nacl = core_tpg_get_initiator_node_acl(tpg, initiatorname); |
6708bb27b target: Follow up... |
1487 |
if (!nacl) { |
c66ac9db8 [SCSI] target: Ad... |
1488 1489 1490 1491 |
*ret = -EINVAL; return NULL; } lacl = kzalloc(sizeof(struct se_lun_acl), GFP_KERNEL); |
6708bb27b target: Follow up... |
1492 1493 1494 |
if (!lacl) { pr_err("Unable to allocate memory for struct se_lun_acl. "); |
c66ac9db8 [SCSI] target: Ad... |
1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 |
*ret = -ENOMEM; return NULL; } INIT_LIST_HEAD(&lacl->lacl_list); lacl->mapped_lun = mapped_lun; lacl->se_lun_nacl = nacl; snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); return lacl; } int core_dev_add_initiator_node_lun_acl( struct se_portal_group *tpg, struct se_lun_acl *lacl, u32 unpacked_lun, u32 lun_access) { struct se_lun *lun; struct se_node_acl *nacl; lun = core_dev_get_lun(tpg, unpacked_lun); |
6708bb27b target: Follow up... |
1517 1518 |
if (!lun) { pr_err("%s Logical Unit Number: %u is not active on" |
c66ac9db8 [SCSI] target: Ad... |
1519 1520 |
" Target Portal Group: %hu, ignoring request. ", |
e3d6f909e target: Core clea... |
1521 1522 |
tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
c66ac9db8 [SCSI] target: Ad... |
1523 1524 1525 1526 |
return -EINVAL; } nacl = lacl->se_lun_nacl; |
6708bb27b target: Follow up... |
1527 |
if (!nacl) |
c66ac9db8 [SCSI] target: Ad... |
1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 |
return -EINVAL; if ((lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) && (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE)) lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; lacl->se_lun = lun; if (core_update_device_list_for_node(lun, lacl, lacl->mapped_lun, lun_access, nacl, tpg, 1) < 0) return -EINVAL; spin_lock(&lun->lun_acl_lock); list_add_tail(&lacl->lacl_list, &lun->lun_acl_list); atomic_inc(&lun->lun_acl_count); smp_mb__after_atomic_inc(); spin_unlock(&lun->lun_acl_lock); |
6708bb27b target: Follow up... |
1545 |
pr_debug("%s_TPG[%hu]_LUN[%u->%u] - Added %s ACL for " |
e3d6f909e target: Core clea... |
1546 1547 1548 |
" InitiatorNode: %s ", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, lacl->mapped_lun, |
c66ac9db8 [SCSI] target: Ad... |
1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 |
(lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO", lacl->initiatorname); /* * Check to see if there are any existing persistent reservation APTPL * pre-registrations that need to be enabled for this LUN ACL.. */ core_scsi3_check_aptpl_registration(lun->lun_se_dev, tpg, lun, lacl); return 0; } /* core_dev_del_initiator_node_lun_acl(): * * */ int core_dev_del_initiator_node_lun_acl( struct se_portal_group *tpg, struct se_lun *lun, struct se_lun_acl *lacl) { struct se_node_acl *nacl; nacl = lacl->se_lun_nacl; |
6708bb27b target: Follow up... |
1571 |
if (!nacl) |
c66ac9db8 [SCSI] target: Ad... |
1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 |
return -EINVAL; spin_lock(&lun->lun_acl_lock); list_del(&lacl->lacl_list); atomic_dec(&lun->lun_acl_count); smp_mb__after_atomic_dec(); spin_unlock(&lun->lun_acl_lock); core_update_device_list_for_node(lun, NULL, lacl->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg, 0); lacl->se_lun = NULL; |
6708bb27b target: Follow up... |
1584 |
pr_debug("%s_TPG[%hu]_LUN[%u] - Removed ACL for" |
c66ac9db8 [SCSI] target: Ad... |
1585 1586 |
" InitiatorNode: %s Mapped LUN: %u ", |
e3d6f909e target: Core clea... |
1587 1588 |
tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, |
c66ac9db8 [SCSI] target: Ad... |
1589 1590 1591 1592 1593 1594 1595 1596 1597 |
lacl->initiatorname, lacl->mapped_lun); return 0; } void core_dev_free_initiator_node_lun_acl( struct se_portal_group *tpg, struct se_lun_acl *lacl) { |
6708bb27b target: Follow up... |
1598 |
pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s" |
e3d6f909e target: Core clea... |
1599 1600 1601 1602 |
" Mapped LUN: %u ", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db8 [SCSI] target: Ad... |
1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 |
lacl->initiatorname, lacl->mapped_lun); kfree(lacl); } int core_dev_setup_virtual_lun0(void) { struct se_hba *hba; struct se_device *dev; struct se_subsystem_dev *se_dev = NULL; struct se_subsystem_api *t; char buf[16]; int ret; |
6708bb27b target: Follow up... |
1616 |
hba = core_alloc_hba("rd_mcp", 0, HBA_FLAGS_INTERNAL_USE); |
c66ac9db8 [SCSI] target: Ad... |
1617 1618 |
if (IS_ERR(hba)) return PTR_ERR(hba); |
e3d6f909e target: Core clea... |
1619 |
lun0_hba = hba; |
c66ac9db8 [SCSI] target: Ad... |
1620 1621 1622 |
t = hba->transport; se_dev = kzalloc(sizeof(struct se_subsystem_dev), GFP_KERNEL); |
6708bb27b target: Follow up... |
1623 1624 |
if (!se_dev) { pr_err("Unable to allocate memory for" |
c66ac9db8 [SCSI] target: Ad... |
1625 1626 1627 1628 1629 |
" struct se_subsystem_dev "); ret = -ENOMEM; goto out; } |
c66ac9db8 [SCSI] target: Ad... |
1630 1631 |
INIT_LIST_HEAD(&se_dev->t10_wwn.t10_vpd_list); spin_lock_init(&se_dev->t10_wwn.t10_vpd_lock); |
e3d6f909e target: Core clea... |
1632 1633 1634 1635 |
INIT_LIST_HEAD(&se_dev->t10_pr.registration_list); INIT_LIST_HEAD(&se_dev->t10_pr.aptpl_reg_list); spin_lock_init(&se_dev->t10_pr.registration_lock); spin_lock_init(&se_dev->t10_pr.aptpl_reg_lock); |
c66ac9db8 [SCSI] target: Ad... |
1636 1637 1638 |
INIT_LIST_HEAD(&se_dev->t10_alua.tg_pt_gps_list); spin_lock_init(&se_dev->t10_alua.tg_pt_gps_lock); spin_lock_init(&se_dev->se_dev_lock); |
e3d6f909e target: Core clea... |
1639 |
se_dev->t10_pr.pr_aptpl_buf_len = PR_APTPL_BUF_LEN; |
c66ac9db8 [SCSI] target: Ad... |
1640 1641 1642 1643 1644 1645 |
se_dev->t10_wwn.t10_sub_dev = se_dev; se_dev->t10_alua.t10_sub_dev = se_dev; se_dev->se_dev_attrib.da_sub_dev = se_dev; se_dev->se_dev_hba = hba; se_dev->se_dev_su_ptr = t->allocate_virtdevice(hba, "virt_lun0"); |
6708bb27b target: Follow up... |
1646 1647 |
if (!se_dev->se_dev_su_ptr) { pr_err("Unable to locate subsystem dependent pointer" |
c66ac9db8 [SCSI] target: Ad... |
1648 1649 1650 1651 1652 |
" from allocate_virtdevice() "); ret = -ENOMEM; goto out; } |
e3d6f909e target: Core clea... |
1653 |
lun0_su_dev = se_dev; |
c66ac9db8 [SCSI] target: Ad... |
1654 1655 1656 1657 1658 1659 |
memset(buf, 0, 16); sprintf(buf, "rd_pages=8"); t->set_configfs_dev_params(hba, se_dev, buf, sizeof(buf)); dev = t->create_virtdevice(hba, se_dev, se_dev->se_dev_su_ptr); |
e3d6f909e target: Core clea... |
1660 1661 |
if (IS_ERR(dev)) { ret = PTR_ERR(dev); |
c66ac9db8 [SCSI] target: Ad... |
1662 1663 1664 |
goto out; } se_dev->se_dev_ptr = dev; |
e3d6f909e target: Core clea... |
1665 |
g_lun0_dev = dev; |
c66ac9db8 [SCSI] target: Ad... |
1666 1667 1668 |
return 0; out: |
e3d6f909e target: Core clea... |
1669 |
lun0_su_dev = NULL; |
c66ac9db8 [SCSI] target: Ad... |
1670 |
kfree(se_dev); |
e3d6f909e target: Core clea... |
1671 1672 1673 |
if (lun0_hba) { core_delete_hba(lun0_hba); lun0_hba = NULL; |
c66ac9db8 [SCSI] target: Ad... |
1674 1675 1676 1677 1678 1679 1680 |
} return ret; } void core_dev_release_virtual_lun0(void) { |
e3d6f909e target: Core clea... |
1681 1682 |
struct se_hba *hba = lun0_hba; struct se_subsystem_dev *su_dev = lun0_su_dev; |
c66ac9db8 [SCSI] target: Ad... |
1683 |
|
6708bb27b target: Follow up... |
1684 |
if (!hba) |
c66ac9db8 [SCSI] target: Ad... |
1685 |
return; |
e3d6f909e target: Core clea... |
1686 1687 |
if (g_lun0_dev) se_free_virtual_device(g_lun0_dev, hba); |
c66ac9db8 [SCSI] target: Ad... |
1688 1689 1690 1691 |
kfree(su_dev); core_delete_hba(hba); } |