Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * Filename: target_core_device.c (based on iscsi_target_device.c) |
| 3 | * |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 4 | * This file contains the TCM Virtual Device and Disk Transport |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 5 | * agnostic related functions. |
| 6 | * |
Nicholas Bellinger | fd9a11d | 2012-11-09 14:51:48 -0800 | [diff] [blame] | 7 | * (c) Copyright 2003-2012 RisingTide Systems LLC. |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 8 | * |
| 9 | * Nicholas A. Bellinger <nab@kernel.org> |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 24 | * |
| 25 | ******************************************************************************/ |
| 26 | |
| 27 | #include <linux/net.h> |
| 28 | #include <linux/string.h> |
| 29 | #include <linux/delay.h> |
| 30 | #include <linux/timer.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/spinlock.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 33 | #include <linux/kthread.h> |
| 34 | #include <linux/in.h> |
Paul Gortmaker | c53181a | 2011-08-30 18:16:43 -0400 | [diff] [blame] | 35 | #include <linux/export.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 36 | #include <net/sock.h> |
| 37 | #include <net/tcp.h> |
| 38 | #include <scsi/scsi.h> |
Nicholas Bellinger | 1078da1 | 2011-05-19 20:19:13 -0700 | [diff] [blame] | 39 | #include <scsi/scsi_device.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 40 | |
| 41 | #include <target/target_core_base.h> |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 42 | #include <target/target_core_backend.h> |
| 43 | #include <target/target_core_fabric.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 44 | |
Christoph Hellwig | e26d99a | 2011-11-14 12:30:30 -0500 | [diff] [blame] | 45 | #include "target_core_internal.h" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 46 | #include "target_core_alua.h" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 47 | #include "target_core_pr.h" |
| 48 | #include "target_core_ua.h" |
| 49 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 50 | static struct se_hba *lun0_hba; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 51 | /* not static, needed by tpg.c */ |
| 52 | struct se_device *g_lun0_dev; |
| 53 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 54 | sense_reason_t |
| 55 | transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 56 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 57 | struct se_lun *se_lun = NULL; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 58 | struct se_session *se_sess = se_cmd->se_sess; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 59 | struct se_device *dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 60 | unsigned long flags; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 61 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 62 | if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) |
| 63 | return TCM_NON_EXISTENT_LUN; |
Fubo Chen | d814495 | 2011-02-13 15:13:42 -0800 | [diff] [blame] | 64 | |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 65 | spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 66 | se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun]; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 67 | if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
| 68 | struct se_dev_entry *deve = se_cmd->se_deve; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 69 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 70 | deve->total_cmds++; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 71 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 72 | if ((se_cmd->data_direction == DMA_TO_DEVICE) && |
| 73 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 74 | pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 75 | " Access for 0x%08x\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 76 | se_cmd->se_tfo->get_fabric_name(), |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 77 | unpacked_lun); |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 78 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 79 | return TCM_WRITE_PROTECTED; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 80 | } |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 81 | |
| 82 | if (se_cmd->data_direction == DMA_TO_DEVICE) |
| 83 | deve->write_bytes += se_cmd->data_length; |
| 84 | else if (se_cmd->data_direction == DMA_FROM_DEVICE) |
| 85 | deve->read_bytes += se_cmd->data_length; |
| 86 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 87 | se_lun = deve->se_lun; |
| 88 | se_cmd->se_lun = deve->se_lun; |
| 89 | se_cmd->pr_res_key = deve->pr_res_key; |
| 90 | se_cmd->orig_fe_lun = unpacked_lun; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 91 | se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; |
| 92 | } |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 93 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 94 | |
| 95 | if (!se_lun) { |
| 96 | /* |
| 97 | * Use the se_portal_group->tpg_virt_lun0 to allow for |
| 98 | * REPORT_LUNS, et al to be returned when no active |
| 99 | * MappedLUN=0 exists for this Initiator Port. |
| 100 | */ |
| 101 | if (unpacked_lun != 0) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 102 | pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 103 | " Access for 0x%08x\n", |
| 104 | se_cmd->se_tfo->get_fabric_name(), |
| 105 | unpacked_lun); |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 106 | return TCM_NON_EXISTENT_LUN; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 107 | } |
| 108 | /* |
| 109 | * Force WRITE PROTECT for virtual LUN 0 |
| 110 | */ |
| 111 | if ((se_cmd->data_direction != DMA_FROM_DEVICE) && |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 112 | (se_cmd->data_direction != DMA_NONE)) |
| 113 | return TCM_WRITE_PROTECTED; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 114 | |
| 115 | se_lun = &se_sess->se_tpg->tpg_virt_lun0; |
| 116 | se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0; |
| 117 | se_cmd->orig_fe_lun = 0; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 118 | se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 119 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 120 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 121 | /* Directly associate cmd with se_dev */ |
| 122 | se_cmd->se_dev = se_lun->lun_se_dev; |
| 123 | |
| 124 | /* TODO: get rid of this and use atomics for stats */ |
| 125 | dev = se_lun->lun_se_dev; |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 126 | spin_lock_irqsave(&dev->stats_lock, flags); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 127 | dev->num_cmds++; |
| 128 | if (se_cmd->data_direction == DMA_TO_DEVICE) |
| 129 | dev->write_bytes += se_cmd->data_length; |
| 130 | else if (se_cmd->data_direction == DMA_FROM_DEVICE) |
| 131 | dev->read_bytes += se_cmd->data_length; |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 132 | spin_unlock_irqrestore(&dev->stats_lock, flags); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 133 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 134 | spin_lock_irqsave(&se_lun->lun_cmd_lock, flags); |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 135 | list_add_tail(&se_cmd->se_lun_node, &se_lun->lun_cmd_list); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 136 | spin_unlock_irqrestore(&se_lun->lun_cmd_lock, flags); |
| 137 | |
| 138 | return 0; |
| 139 | } |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 140 | EXPORT_SYMBOL(transport_lookup_cmd_lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 141 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 142 | int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 143 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 144 | struct se_dev_entry *deve; |
| 145 | struct se_lun *se_lun = NULL; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 146 | struct se_session *se_sess = se_cmd->se_sess; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 147 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 148 | unsigned long flags; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 149 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 150 | if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 151 | return -ENODEV; |
Fubo Chen | d814495 | 2011-02-13 15:13:42 -0800 | [diff] [blame] | 152 | |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 153 | spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 154 | se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun]; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 155 | deve = se_cmd->se_deve; |
| 156 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 157 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 158 | se_tmr->tmr_lun = deve->se_lun; |
| 159 | se_cmd->se_lun = deve->se_lun; |
| 160 | se_lun = deve->se_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 161 | se_cmd->pr_res_key = deve->pr_res_key; |
| 162 | se_cmd->orig_fe_lun = unpacked_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 163 | } |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 164 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 165 | |
| 166 | if (!se_lun) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 167 | pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 168 | " Access for 0x%08x\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 169 | se_cmd->se_tfo->get_fabric_name(), |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 170 | unpacked_lun); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 171 | return -ENODEV; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 172 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 173 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 174 | /* Directly associate cmd with se_dev */ |
| 175 | se_cmd->se_dev = se_lun->lun_se_dev; |
| 176 | se_tmr->tmr_dev = se_lun->lun_se_dev; |
| 177 | |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 178 | spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags); |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 179 | list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list); |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 180 | spin_unlock_irqrestore(&se_tmr->tmr_dev->se_tmr_lock, flags); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 181 | |
| 182 | return 0; |
| 183 | } |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 184 | EXPORT_SYMBOL(transport_lookup_tmr_lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 185 | |
| 186 | /* |
| 187 | * This function is called from core_scsi3_emulate_pro_register_and_move() |
| 188 | * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_ref_count |
| 189 | * when a matching rtpi is found. |
| 190 | */ |
| 191 | struct se_dev_entry *core_get_se_deve_from_rtpi( |
| 192 | struct se_node_acl *nacl, |
| 193 | u16 rtpi) |
| 194 | { |
| 195 | struct se_dev_entry *deve; |
| 196 | struct se_lun *lun; |
| 197 | struct se_port *port; |
| 198 | struct se_portal_group *tpg = nacl->se_tpg; |
| 199 | u32 i; |
| 200 | |
| 201 | spin_lock_irq(&nacl->device_list_lock); |
| 202 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 203 | deve = nacl->device_list[i]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 204 | |
| 205 | if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) |
| 206 | continue; |
| 207 | |
| 208 | lun = deve->se_lun; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 209 | if (!lun) { |
| 210 | pr_err("%s device entries device pointer is" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 211 | " NULL, but Initiator has access.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 212 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 213 | continue; |
| 214 | } |
| 215 | port = lun->lun_sep; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 216 | if (!port) { |
| 217 | pr_err("%s device entries device pointer is" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 218 | " NULL, but Initiator has access.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 219 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 220 | continue; |
| 221 | } |
| 222 | if (port->sep_rtpi != rtpi) |
| 223 | continue; |
| 224 | |
| 225 | atomic_inc(&deve->pr_ref_count); |
| 226 | smp_mb__after_atomic_inc(); |
| 227 | spin_unlock_irq(&nacl->device_list_lock); |
| 228 | |
| 229 | return deve; |
| 230 | } |
| 231 | spin_unlock_irq(&nacl->device_list_lock); |
| 232 | |
| 233 | return NULL; |
| 234 | } |
| 235 | |
| 236 | int core_free_device_list_for_node( |
| 237 | struct se_node_acl *nacl, |
| 238 | struct se_portal_group *tpg) |
| 239 | { |
| 240 | struct se_dev_entry *deve; |
| 241 | struct se_lun *lun; |
| 242 | u32 i; |
| 243 | |
| 244 | if (!nacl->device_list) |
| 245 | return 0; |
| 246 | |
| 247 | spin_lock_irq(&nacl->device_list_lock); |
| 248 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 249 | deve = nacl->device_list[i]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 250 | |
| 251 | if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) |
| 252 | continue; |
| 253 | |
| 254 | if (!deve->se_lun) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 255 | pr_err("%s device entries device pointer is" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 256 | " NULL, but Initiator has access.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 257 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 258 | continue; |
| 259 | } |
| 260 | lun = deve->se_lun; |
| 261 | |
| 262 | spin_unlock_irq(&nacl->device_list_lock); |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 263 | core_disable_device_list_for_node(lun, NULL, deve->mapped_lun, |
| 264 | TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 265 | spin_lock_irq(&nacl->device_list_lock); |
| 266 | } |
| 267 | spin_unlock_irq(&nacl->device_list_lock); |
| 268 | |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 269 | array_free(nacl->device_list, TRANSPORT_MAX_LUNS_PER_TPG); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 270 | nacl->device_list = NULL; |
| 271 | |
| 272 | return 0; |
| 273 | } |
| 274 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 275 | void core_update_device_list_access( |
| 276 | u32 mapped_lun, |
| 277 | u32 lun_access, |
| 278 | struct se_node_acl *nacl) |
| 279 | { |
| 280 | struct se_dev_entry *deve; |
| 281 | |
| 282 | spin_lock_irq(&nacl->device_list_lock); |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 283 | deve = nacl->device_list[mapped_lun]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 284 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
| 285 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; |
| 286 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; |
| 287 | } else { |
| 288 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; |
| 289 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; |
| 290 | } |
| 291 | spin_unlock_irq(&nacl->device_list_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 292 | } |
| 293 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 294 | /* core_enable_device_list_for_node(): |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 295 | * |
| 296 | * |
| 297 | */ |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 298 | int core_enable_device_list_for_node( |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 299 | struct se_lun *lun, |
| 300 | struct se_lun_acl *lun_acl, |
| 301 | u32 mapped_lun, |
| 302 | u32 lun_access, |
| 303 | struct se_node_acl *nacl, |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 304 | struct se_portal_group *tpg) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 305 | { |
| 306 | struct se_port *port = lun->lun_sep; |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 307 | struct se_dev_entry *deve; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 308 | |
| 309 | spin_lock_irq(&nacl->device_list_lock); |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 310 | |
| 311 | deve = nacl->device_list[mapped_lun]; |
| 312 | |
| 313 | /* |
| 314 | * Check if the call is handling demo mode -> explict LUN ACL |
| 315 | * transition. This transition must be for the same struct se_lun |
| 316 | * + mapped_lun that was setup in demo mode.. |
| 317 | */ |
| 318 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
| 319 | if (deve->se_lun_acl != NULL) { |
| 320 | pr_err("struct se_dev_entry->se_lun_acl" |
| 321 | " already set for demo mode -> explict" |
| 322 | " LUN ACL transition\n"); |
| 323 | spin_unlock_irq(&nacl->device_list_lock); |
| 324 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 325 | } |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 326 | if (deve->se_lun != lun) { |
| 327 | pr_err("struct se_dev_entry->se_lun does" |
| 328 | " match passed struct se_lun for demo mode" |
| 329 | " -> explict LUN ACL transition\n"); |
| 330 | spin_unlock_irq(&nacl->device_list_lock); |
| 331 | return -EINVAL; |
| 332 | } |
| 333 | deve->se_lun_acl = lun_acl; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 334 | |
| 335 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
| 336 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; |
| 337 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; |
| 338 | } else { |
| 339 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; |
| 340 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; |
| 341 | } |
| 342 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 343 | spin_unlock_irq(&nacl->device_list_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 344 | return 0; |
| 345 | } |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 346 | |
| 347 | deve->se_lun = lun; |
| 348 | deve->se_lun_acl = lun_acl; |
| 349 | deve->mapped_lun = mapped_lun; |
| 350 | deve->lun_flags |= TRANSPORT_LUNFLAGS_INITIATOR_ACCESS; |
| 351 | |
| 352 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
| 353 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; |
| 354 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; |
| 355 | } else { |
| 356 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; |
| 357 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; |
| 358 | } |
| 359 | |
| 360 | deve->creation_time = get_jiffies_64(); |
| 361 | deve->attach_count++; |
| 362 | spin_unlock_irq(&nacl->device_list_lock); |
| 363 | |
| 364 | spin_lock_bh(&port->sep_alua_lock); |
| 365 | list_add_tail(&deve->alua_port_list, &port->sep_alua_list); |
| 366 | spin_unlock_bh(&port->sep_alua_lock); |
| 367 | |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | /* core_disable_device_list_for_node(): |
| 372 | * |
| 373 | * |
| 374 | */ |
| 375 | int core_disable_device_list_for_node( |
| 376 | struct se_lun *lun, |
| 377 | struct se_lun_acl *lun_acl, |
| 378 | u32 mapped_lun, |
| 379 | u32 lun_access, |
| 380 | struct se_node_acl *nacl, |
| 381 | struct se_portal_group *tpg) |
| 382 | { |
| 383 | struct se_port *port = lun->lun_sep; |
Nicholas Bellinger | 77d4c74 | 2012-07-14 15:11:41 -0700 | [diff] [blame] | 384 | struct se_dev_entry *deve = nacl->device_list[mapped_lun]; |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 385 | |
| 386 | /* |
| 387 | * If the MappedLUN entry is being disabled, the entry in |
| 388 | * port->sep_alua_list must be removed now before clearing the |
| 389 | * struct se_dev_entry pointers below as logic in |
| 390 | * core_alua_do_transition_tg_pt() depends on these being present. |
| 391 | * |
| 392 | * deve->se_lun_acl will be NULL for demo-mode created LUNs |
| 393 | * that have not been explicitly converted to MappedLUNs -> |
| 394 | * struct se_lun_acl, but we remove deve->alua_port_list from |
| 395 | * port->sep_alua_list. This also means that active UAs and |
| 396 | * NodeACL context specific PR metadata for demo-mode |
| 397 | * MappedLUN *deve will be released below.. |
| 398 | */ |
| 399 | spin_lock_bh(&port->sep_alua_lock); |
| 400 | list_del(&deve->alua_port_list); |
| 401 | spin_unlock_bh(&port->sep_alua_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 402 | /* |
| 403 | * Wait for any in process SPEC_I_PT=1 or REGISTER_AND_MOVE |
| 404 | * PR operation to complete. |
| 405 | */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 406 | while (atomic_read(&deve->pr_ref_count) != 0) |
| 407 | cpu_relax(); |
Nicholas Bellinger | 77d4c74 | 2012-07-14 15:11:41 -0700 | [diff] [blame] | 408 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 409 | spin_lock_irq(&nacl->device_list_lock); |
| 410 | /* |
| 411 | * Disable struct se_dev_entry LUN ACL mapping |
| 412 | */ |
| 413 | core_scsi3_ua_release_all(deve); |
| 414 | deve->se_lun = NULL; |
| 415 | deve->se_lun_acl = NULL; |
| 416 | deve->lun_flags = 0; |
| 417 | deve->creation_time = 0; |
| 418 | deve->attach_count--; |
| 419 | spin_unlock_irq(&nacl->device_list_lock); |
| 420 | |
| 421 | core_scsi3_free_pr_reg_from_nacl(lun->lun_se_dev, nacl); |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | /* core_clear_lun_from_tpg(): |
| 426 | * |
| 427 | * |
| 428 | */ |
| 429 | void core_clear_lun_from_tpg(struct se_lun *lun, struct se_portal_group *tpg) |
| 430 | { |
| 431 | struct se_node_acl *nacl; |
| 432 | struct se_dev_entry *deve; |
| 433 | u32 i; |
| 434 | |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 435 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 436 | list_for_each_entry(nacl, &tpg->acl_node_list, acl_list) { |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 437 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 438 | |
| 439 | spin_lock_irq(&nacl->device_list_lock); |
| 440 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 441 | deve = nacl->device_list[i]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 442 | if (lun != deve->se_lun) |
| 443 | continue; |
| 444 | spin_unlock_irq(&nacl->device_list_lock); |
| 445 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 446 | core_disable_device_list_for_node(lun, NULL, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 447 | deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS, |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 448 | nacl, tpg); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 449 | |
| 450 | spin_lock_irq(&nacl->device_list_lock); |
| 451 | } |
| 452 | spin_unlock_irq(&nacl->device_list_lock); |
| 453 | |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 454 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 455 | } |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 456 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | static struct se_port *core_alloc_port(struct se_device *dev) |
| 460 | { |
| 461 | struct se_port *port, *port_tmp; |
| 462 | |
| 463 | port = kzalloc(sizeof(struct se_port), GFP_KERNEL); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 464 | if (!port) { |
| 465 | pr_err("Unable to allocate struct se_port\n"); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 466 | return ERR_PTR(-ENOMEM); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 467 | } |
| 468 | INIT_LIST_HEAD(&port->sep_alua_list); |
| 469 | INIT_LIST_HEAD(&port->sep_list); |
| 470 | atomic_set(&port->sep_tg_pt_secondary_offline, 0); |
| 471 | spin_lock_init(&port->sep_alua_lock); |
| 472 | mutex_init(&port->sep_tg_pt_md_mutex); |
| 473 | |
| 474 | spin_lock(&dev->se_port_lock); |
| 475 | if (dev->dev_port_count == 0x0000ffff) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 476 | pr_warn("Reached dev->dev_port_count ==" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 477 | " 0x0000ffff\n"); |
| 478 | spin_unlock(&dev->se_port_lock); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 479 | return ERR_PTR(-ENOSPC); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 480 | } |
| 481 | again: |
| 482 | /* |
Masanari Iida | 35d1efe | 2012-08-16 22:43:13 +0900 | [diff] [blame] | 483 | * Allocate the next RELATIVE TARGET PORT IDENTIFIER for this struct se_device |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 484 | * Here is the table from spc4r17 section 7.7.3.8. |
| 485 | * |
| 486 | * Table 473 -- RELATIVE TARGET PORT IDENTIFIER field |
| 487 | * |
| 488 | * Code Description |
| 489 | * 0h Reserved |
| 490 | * 1h Relative port 1, historically known as port A |
| 491 | * 2h Relative port 2, historically known as port B |
| 492 | * 3h to FFFFh Relative port 3 through 65 535 |
| 493 | */ |
| 494 | port->sep_rtpi = dev->dev_rpti_counter++; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 495 | if (!port->sep_rtpi) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 496 | goto again; |
| 497 | |
| 498 | list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) { |
| 499 | /* |
Masanari Iida | 35d1efe | 2012-08-16 22:43:13 +0900 | [diff] [blame] | 500 | * Make sure RELATIVE TARGET PORT IDENTIFIER is unique |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 501 | * for 16-bit wrap.. |
| 502 | */ |
| 503 | if (port->sep_rtpi == port_tmp->sep_rtpi) |
| 504 | goto again; |
| 505 | } |
| 506 | spin_unlock(&dev->se_port_lock); |
| 507 | |
| 508 | return port; |
| 509 | } |
| 510 | |
| 511 | static void core_export_port( |
| 512 | struct se_device *dev, |
| 513 | struct se_portal_group *tpg, |
| 514 | struct se_port *port, |
| 515 | struct se_lun *lun) |
| 516 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 517 | struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem = NULL; |
| 518 | |
| 519 | spin_lock(&dev->se_port_lock); |
| 520 | spin_lock(&lun->lun_sep_lock); |
| 521 | port->sep_tpg = tpg; |
| 522 | port->sep_lun = lun; |
| 523 | lun->lun_sep = port; |
| 524 | spin_unlock(&lun->lun_sep_lock); |
| 525 | |
| 526 | list_add_tail(&port->sep_list, &dev->dev_sep_list); |
| 527 | spin_unlock(&dev->se_port_lock); |
| 528 | |
Christoph Hellwig | c87fbd5 | 2012-10-10 17:37:16 -0400 | [diff] [blame] | 529 | if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV && |
| 530 | !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 531 | tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port); |
| 532 | if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 533 | pr_err("Unable to allocate t10_alua_tg_pt" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 534 | "_gp_member_t\n"); |
| 535 | return; |
| 536 | } |
| 537 | spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); |
| 538 | __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 539 | dev->t10_alua.default_tg_pt_gp); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 540 | spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 541 | pr_debug("%s/%s: Adding to default ALUA Target Port" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 542 | " Group: alua/default_tg_pt_gp\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 543 | dev->transport->name, tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 544 | } |
| 545 | |
| 546 | dev->dev_port_count++; |
Masanari Iida | 35d1efe | 2012-08-16 22:43:13 +0900 | [diff] [blame] | 547 | port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFIER */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | /* |
| 551 | * Called with struct se_device->se_port_lock spinlock held. |
| 552 | */ |
| 553 | static void core_release_port(struct se_device *dev, struct se_port *port) |
Dan Carpenter | 5dd7ed2 | 2011-03-14 04:06:01 -0700 | [diff] [blame] | 554 | __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 555 | { |
| 556 | /* |
| 557 | * Wait for any port reference for PR ALL_TG_PT=1 operation |
| 558 | * to complete in __core_scsi3_alloc_registration() |
| 559 | */ |
| 560 | spin_unlock(&dev->se_port_lock); |
| 561 | if (atomic_read(&port->sep_tg_pt_ref_cnt)) |
| 562 | cpu_relax(); |
| 563 | spin_lock(&dev->se_port_lock); |
| 564 | |
| 565 | core_alua_free_tg_pt_gp_mem(port); |
| 566 | |
| 567 | list_del(&port->sep_list); |
| 568 | dev->dev_port_count--; |
| 569 | kfree(port); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 570 | } |
| 571 | |
| 572 | int core_dev_export( |
| 573 | struct se_device *dev, |
| 574 | struct se_portal_group *tpg, |
| 575 | struct se_lun *lun) |
| 576 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 577 | struct se_hba *hba = dev->se_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 578 | struct se_port *port; |
| 579 | |
| 580 | port = core_alloc_port(dev); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 581 | if (IS_ERR(port)) |
| 582 | return PTR_ERR(port); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 583 | |
| 584 | lun->lun_se_dev = dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 585 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 586 | spin_lock(&hba->device_lock); |
| 587 | dev->export_count++; |
| 588 | spin_unlock(&hba->device_lock); |
| 589 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 590 | core_export_port(dev, tpg, port, lun); |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | void core_dev_unexport( |
| 595 | struct se_device *dev, |
| 596 | struct se_portal_group *tpg, |
| 597 | struct se_lun *lun) |
| 598 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 599 | struct se_hba *hba = dev->se_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 600 | struct se_port *port = lun->lun_sep; |
| 601 | |
| 602 | spin_lock(&lun->lun_sep_lock); |
| 603 | if (lun->lun_se_dev == NULL) { |
| 604 | spin_unlock(&lun->lun_sep_lock); |
| 605 | return; |
| 606 | } |
| 607 | spin_unlock(&lun->lun_sep_lock); |
| 608 | |
| 609 | spin_lock(&dev->se_port_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 610 | core_release_port(dev, port); |
| 611 | spin_unlock(&dev->se_port_lock); |
| 612 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 613 | spin_lock(&hba->device_lock); |
| 614 | dev->export_count--; |
| 615 | spin_unlock(&hba->device_lock); |
| 616 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 617 | lun->lun_se_dev = NULL; |
| 618 | } |
| 619 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 620 | static void se_release_vpd_for_dev(struct se_device *dev) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 621 | { |
| 622 | struct t10_vpd *vpd, *vpd_tmp; |
| 623 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 624 | spin_lock(&dev->t10_wwn.t10_vpd_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 625 | list_for_each_entry_safe(vpd, vpd_tmp, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 626 | &dev->t10_wwn.t10_vpd_list, vpd_list) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 627 | list_del(&vpd->vpd_list); |
| 628 | kfree(vpd); |
| 629 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 630 | spin_unlock(&dev->t10_wwn.t10_vpd_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 631 | } |
| 632 | |
Roland Dreier | c804537 | 2012-07-16 15:17:12 -0700 | [diff] [blame] | 633 | static u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size) |
Nicholas Bellinger | 525a48a | 2011-08-13 02:11:38 -0700 | [diff] [blame] | 634 | { |
Roland Dreier | 3e03989 | 2012-10-31 09:16:45 -0700 | [diff] [blame] | 635 | u32 aligned_max_sectors; |
| 636 | u32 alignment; |
Nicholas Bellinger | 525a48a | 2011-08-13 02:11:38 -0700 | [diff] [blame] | 637 | /* |
| 638 | * Limit max_sectors to a PAGE_SIZE aligned value for modern |
| 639 | * transport_allocate_data_tasks() operation. |
| 640 | */ |
Roland Dreier | 3e03989 | 2012-10-31 09:16:45 -0700 | [diff] [blame] | 641 | alignment = max(1ul, PAGE_SIZE / block_size); |
| 642 | aligned_max_sectors = rounddown(max_sectors, alignment); |
Nicholas Bellinger | 525a48a | 2011-08-13 02:11:38 -0700 | [diff] [blame] | 643 | |
Roland Dreier | 3e03989 | 2012-10-31 09:16:45 -0700 | [diff] [blame] | 644 | if (max_sectors != aligned_max_sectors) |
| 645 | pr_info("Rounding down aligned max_sectors from %u to %u\n", |
| 646 | max_sectors, aligned_max_sectors); |
| 647 | |
| 648 | return aligned_max_sectors; |
Nicholas Bellinger | 525a48a | 2011-08-13 02:11:38 -0700 | [diff] [blame] | 649 | } |
| 650 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 651 | int se_dev_set_max_unmap_lba_count( |
| 652 | struct se_device *dev, |
| 653 | u32 max_unmap_lba_count) |
| 654 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 655 | dev->dev_attrib.max_unmap_lba_count = max_unmap_lba_count; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 656 | pr_debug("dev[%p]: Set max_unmap_lba_count: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 657 | dev, dev->dev_attrib.max_unmap_lba_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 658 | return 0; |
| 659 | } |
| 660 | |
| 661 | int se_dev_set_max_unmap_block_desc_count( |
| 662 | struct se_device *dev, |
| 663 | u32 max_unmap_block_desc_count) |
| 664 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 665 | dev->dev_attrib.max_unmap_block_desc_count = |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 666 | max_unmap_block_desc_count; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 667 | pr_debug("dev[%p]: Set max_unmap_block_desc_count: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 668 | dev, dev->dev_attrib.max_unmap_block_desc_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 669 | return 0; |
| 670 | } |
| 671 | |
| 672 | int se_dev_set_unmap_granularity( |
| 673 | struct se_device *dev, |
| 674 | u32 unmap_granularity) |
| 675 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 676 | dev->dev_attrib.unmap_granularity = unmap_granularity; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 677 | pr_debug("dev[%p]: Set unmap_granularity: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 678 | dev, dev->dev_attrib.unmap_granularity); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 679 | return 0; |
| 680 | } |
| 681 | |
| 682 | int se_dev_set_unmap_granularity_alignment( |
| 683 | struct se_device *dev, |
| 684 | u32 unmap_granularity_alignment) |
| 685 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 686 | dev->dev_attrib.unmap_granularity_alignment = unmap_granularity_alignment; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 687 | pr_debug("dev[%p]: Set unmap_granularity_alignment: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 688 | dev, dev->dev_attrib.unmap_granularity_alignment); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 689 | return 0; |
| 690 | } |
| 691 | |
Nicholas Bellinger | 773cbaf | 2012-11-15 11:02:49 -0800 | [diff] [blame] | 692 | int se_dev_set_max_write_same_len( |
| 693 | struct se_device *dev, |
| 694 | u32 max_write_same_len) |
| 695 | { |
| 696 | dev->dev_attrib.max_write_same_len = max_write_same_len; |
| 697 | pr_debug("dev[%p]: Set max_write_same_len: %u\n", |
| 698 | dev, dev->dev_attrib.max_write_same_len); |
| 699 | return 0; |
| 700 | } |
| 701 | |
Tregaron Bayly | adfa957 | 2013-01-31 15:30:24 -0700 | [diff] [blame] | 702 | static void dev_set_t10_wwn_model_alias(struct se_device *dev) |
| 703 | { |
| 704 | const char *configname; |
| 705 | |
| 706 | configname = config_item_name(&dev->dev_group.cg_item); |
| 707 | if (strlen(configname) >= 16) { |
| 708 | pr_warn("dev[%p]: Backstore name '%s' is too long for " |
| 709 | "INQUIRY_MODEL, truncating to 16 bytes\n", dev, |
| 710 | configname); |
| 711 | } |
| 712 | snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); |
| 713 | } |
| 714 | |
| 715 | int se_dev_set_emulate_model_alias(struct se_device *dev, int flag) |
| 716 | { |
| 717 | if (dev->export_count) { |
| 718 | pr_err("dev[%p]: Unable to change model alias" |
| 719 | " while export_count is %d\n", |
| 720 | dev, dev->export_count); |
| 721 | return -EINVAL; |
| 722 | } |
| 723 | |
| 724 | if (flag != 0 && flag != 1) { |
| 725 | pr_err("Illegal value %d\n", flag); |
| 726 | return -EINVAL; |
| 727 | } |
| 728 | |
| 729 | if (flag) { |
| 730 | dev_set_t10_wwn_model_alias(dev); |
| 731 | } else { |
| 732 | strncpy(&dev->t10_wwn.model[0], |
| 733 | dev->transport->inquiry_prod, 16); |
| 734 | } |
| 735 | dev->dev_attrib.emulate_model_alias = flag; |
| 736 | |
| 737 | return 0; |
| 738 | } |
| 739 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 740 | int se_dev_set_emulate_dpo(struct se_device *dev, int flag) |
| 741 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 742 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 743 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 744 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 745 | } |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 746 | |
Andy Grover | c638830 | 2011-11-30 12:11:50 -0800 | [diff] [blame] | 747 | if (flag) { |
| 748 | pr_err("dpo_emulated not supported\n"); |
| 749 | return -EINVAL; |
| 750 | } |
| 751 | |
| 752 | return 0; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 753 | } |
| 754 | |
| 755 | int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) |
| 756 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 757 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 758 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 759 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 760 | } |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 761 | |
Nicholas Bellinger | fd30e93 | 2012-08-26 13:35:58 -0700 | [diff] [blame] | 762 | if (flag && |
| 763 | dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
| 764 | pr_err("emulate_fua_write not supported for pSCSI\n"); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 765 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 766 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 767 | dev->dev_attrib.emulate_fua_write = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 768 | pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 769 | dev, dev->dev_attrib.emulate_fua_write); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 770 | return 0; |
| 771 | } |
| 772 | |
| 773 | int se_dev_set_emulate_fua_read(struct se_device *dev, int flag) |
| 774 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 775 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 776 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 777 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 778 | } |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 779 | |
Andy Grover | c638830 | 2011-11-30 12:11:50 -0800 | [diff] [blame] | 780 | if (flag) { |
| 781 | pr_err("ua read emulated not supported\n"); |
| 782 | return -EINVAL; |
| 783 | } |
| 784 | |
| 785 | return 0; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 786 | } |
| 787 | |
| 788 | int se_dev_set_emulate_write_cache(struct se_device *dev, int flag) |
| 789 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 790 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 791 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 792 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 793 | } |
Nicholas Bellinger | fd30e93 | 2012-08-26 13:35:58 -0700 | [diff] [blame] | 794 | if (flag && |
| 795 | dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
| 796 | pr_err("emulate_write_cache not supported for pSCSI\n"); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 797 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 798 | } |
Nicholas Bellinger | d0c8b25 | 2013-01-29 22:10:06 -0800 | [diff] [blame] | 799 | if (dev->transport->get_write_cache) { |
| 800 | pr_warn("emulate_write_cache cannot be changed when underlying" |
| 801 | " HW reports WriteCacheEnabled, ignoring request\n"); |
| 802 | return 0; |
| 803 | } |
| 804 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 805 | dev->dev_attrib.emulate_write_cache = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 806 | pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 807 | dev, dev->dev_attrib.emulate_write_cache); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 808 | return 0; |
| 809 | } |
| 810 | |
| 811 | int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *dev, int flag) |
| 812 | { |
| 813 | if ((flag != 0) && (flag != 1) && (flag != 2)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 814 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 815 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 816 | } |
| 817 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 818 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 819 | pr_err("dev[%p]: Unable to change SE Device" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 820 | " UA_INTRLCK_CTRL while export_count is %d\n", |
| 821 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 822 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 823 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 824 | dev->dev_attrib.emulate_ua_intlck_ctrl = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 825 | pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 826 | dev, dev->dev_attrib.emulate_ua_intlck_ctrl); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 827 | |
| 828 | return 0; |
| 829 | } |
| 830 | |
| 831 | int se_dev_set_emulate_tas(struct se_device *dev, int flag) |
| 832 | { |
| 833 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 834 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 835 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 836 | } |
| 837 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 838 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 839 | pr_err("dev[%p]: Unable to change SE Device TAS while" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 840 | " export_count is %d\n", |
| 841 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 842 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 843 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 844 | dev->dev_attrib.emulate_tas = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 845 | pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 846 | dev, (dev->dev_attrib.emulate_tas) ? "Enabled" : "Disabled"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 847 | |
| 848 | return 0; |
| 849 | } |
| 850 | |
| 851 | int se_dev_set_emulate_tpu(struct se_device *dev, int flag) |
| 852 | { |
| 853 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 854 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 855 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 856 | } |
| 857 | /* |
| 858 | * We expect this value to be non-zero when generic Block Layer |
| 859 | * Discard supported is detected iblock_create_virtdevice(). |
| 860 | */ |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 861 | if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 862 | pr_err("Generic Block Discard not supported\n"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 863 | return -ENOSYS; |
| 864 | } |
| 865 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 866 | dev->dev_attrib.emulate_tpu = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 867 | pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 868 | dev, flag); |
| 869 | return 0; |
| 870 | } |
| 871 | |
| 872 | int se_dev_set_emulate_tpws(struct se_device *dev, int flag) |
| 873 | { |
| 874 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 875 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 876 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 877 | } |
| 878 | /* |
| 879 | * We expect this value to be non-zero when generic Block Layer |
| 880 | * Discard supported is detected iblock_create_virtdevice(). |
| 881 | */ |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 882 | if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 883 | pr_err("Generic Block Discard not supported\n"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 884 | return -ENOSYS; |
| 885 | } |
| 886 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 887 | dev->dev_attrib.emulate_tpws = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 888 | pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 889 | dev, flag); |
| 890 | return 0; |
| 891 | } |
| 892 | |
| 893 | int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag) |
| 894 | { |
| 895 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 896 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 897 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 898 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 899 | dev->dev_attrib.enforce_pr_isids = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 900 | pr_debug("dev[%p]: SE Device enforce_pr_isids bit: %s\n", dev, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 901 | (dev->dev_attrib.enforce_pr_isids) ? "Enabled" : "Disabled"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 902 | return 0; |
| 903 | } |
| 904 | |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 905 | int se_dev_set_is_nonrot(struct se_device *dev, int flag) |
| 906 | { |
| 907 | if ((flag != 0) && (flag != 1)) { |
| 908 | printk(KERN_ERR "Illegal value %d\n", flag); |
| 909 | return -EINVAL; |
| 910 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 911 | dev->dev_attrib.is_nonrot = flag; |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 912 | pr_debug("dev[%p]: SE Device is_nonrot bit: %d\n", |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 913 | dev, flag); |
| 914 | return 0; |
| 915 | } |
| 916 | |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 917 | int se_dev_set_emulate_rest_reord(struct se_device *dev, int flag) |
| 918 | { |
| 919 | if (flag != 0) { |
| 920 | printk(KERN_ERR "dev[%p]: SE Device emulatation of restricted" |
| 921 | " reordering not implemented\n", dev); |
| 922 | return -ENOSYS; |
| 923 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 924 | dev->dev_attrib.emulate_rest_reord = flag; |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 925 | pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", dev, flag); |
| 926 | return 0; |
| 927 | } |
| 928 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 929 | /* |
| 930 | * Note, this can only be called on unexported SE Device Object. |
| 931 | */ |
| 932 | int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth) |
| 933 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 934 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 935 | pr_err("dev[%p]: Unable to change SE Device TCQ while" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 936 | " export_count is %d\n", |
| 937 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 938 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 939 | } |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 940 | if (!queue_depth) { |
| 941 | pr_err("dev[%p]: Illegal ZERO value for queue" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 942 | "_depth\n", dev); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 943 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 944 | } |
| 945 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 946 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 947 | if (queue_depth > dev->dev_attrib.hw_queue_depth) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 948 | pr_err("dev[%p]: Passed queue_depth: %u" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 949 | " exceeds TCM/SE_Device TCQ: %u\n", |
| 950 | dev, queue_depth, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 951 | dev->dev_attrib.hw_queue_depth); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 952 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 953 | } |
| 954 | } else { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 955 | if (queue_depth > dev->dev_attrib.queue_depth) { |
| 956 | if (queue_depth > dev->dev_attrib.hw_queue_depth) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 957 | pr_err("dev[%p]: Passed queue_depth:" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 958 | " %u exceeds TCM/SE_Device MAX" |
| 959 | " TCQ: %u\n", dev, queue_depth, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 960 | dev->dev_attrib.hw_queue_depth); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 961 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 962 | } |
| 963 | } |
| 964 | } |
| 965 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 966 | dev->dev_attrib.queue_depth = dev->queue_depth = queue_depth; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 967 | pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 968 | dev, queue_depth); |
| 969 | return 0; |
| 970 | } |
| 971 | |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 972 | int se_dev_set_fabric_max_sectors(struct se_device *dev, u32 fabric_max_sectors) |
| 973 | { |
Nicholas Bellinger | 7a3cf6c | 2013-01-31 15:05:48 -0800 | [diff] [blame] | 974 | int block_size = dev->dev_attrib.block_size; |
| 975 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 976 | if (dev->export_count) { |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 977 | pr_err("dev[%p]: Unable to change SE Device" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 978 | " fabric_max_sectors while export_count is %d\n", |
| 979 | dev, dev->export_count); |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 980 | return -EINVAL; |
| 981 | } |
| 982 | if (!fabric_max_sectors) { |
| 983 | pr_err("dev[%p]: Illegal ZERO value for" |
| 984 | " fabric_max_sectors\n", dev); |
| 985 | return -EINVAL; |
| 986 | } |
| 987 | if (fabric_max_sectors < DA_STATUS_MAX_SECTORS_MIN) { |
| 988 | pr_err("dev[%p]: Passed fabric_max_sectors: %u less than" |
| 989 | " DA_STATUS_MAX_SECTORS_MIN: %u\n", dev, fabric_max_sectors, |
| 990 | DA_STATUS_MAX_SECTORS_MIN); |
| 991 | return -EINVAL; |
| 992 | } |
| 993 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 994 | if (fabric_max_sectors > dev->dev_attrib.hw_max_sectors) { |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 995 | pr_err("dev[%p]: Passed fabric_max_sectors: %u" |
| 996 | " greater than TCM/SE_Device max_sectors:" |
| 997 | " %u\n", dev, fabric_max_sectors, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 998 | dev->dev_attrib.hw_max_sectors); |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 999 | return -EINVAL; |
| 1000 | } |
| 1001 | } else { |
| 1002 | if (fabric_max_sectors > DA_STATUS_MAX_SECTORS_MAX) { |
| 1003 | pr_err("dev[%p]: Passed fabric_max_sectors: %u" |
| 1004 | " greater than DA_STATUS_MAX_SECTORS_MAX:" |
| 1005 | " %u\n", dev, fabric_max_sectors, |
| 1006 | DA_STATUS_MAX_SECTORS_MAX); |
| 1007 | return -EINVAL; |
| 1008 | } |
| 1009 | } |
| 1010 | /* |
| 1011 | * Align max_sectors down to PAGE_SIZE to follow transport_allocate_data_tasks() |
| 1012 | */ |
Nicholas Bellinger | 7a3cf6c | 2013-01-31 15:05:48 -0800 | [diff] [blame] | 1013 | if (!block_size) { |
| 1014 | block_size = 512; |
| 1015 | pr_warn("Defaulting to 512 for zero block_size\n"); |
| 1016 | } |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 1017 | fabric_max_sectors = se_dev_align_max_sectors(fabric_max_sectors, |
Nicholas Bellinger | 7a3cf6c | 2013-01-31 15:05:48 -0800 | [diff] [blame] | 1018 | block_size); |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 1019 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1020 | dev->dev_attrib.fabric_max_sectors = fabric_max_sectors; |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 1021 | pr_debug("dev[%p]: SE Device max_sectors changed to %u\n", |
| 1022 | dev, fabric_max_sectors); |
| 1023 | return 0; |
| 1024 | } |
| 1025 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1026 | int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors) |
| 1027 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1028 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1029 | pr_err("dev[%p]: Unable to change SE Device" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1030 | " optimal_sectors while export_count is %d\n", |
| 1031 | dev, dev->export_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1032 | return -EINVAL; |
| 1033 | } |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1034 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1035 | pr_err("dev[%p]: Passed optimal_sectors cannot be" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1036 | " changed for TCM/pSCSI\n", dev); |
| 1037 | return -EINVAL; |
| 1038 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1039 | if (optimal_sectors > dev->dev_attrib.fabric_max_sectors) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1040 | pr_err("dev[%p]: Passed optimal_sectors %u cannot be" |
Roland Dreier | 015487b | 2012-02-13 16:18:17 -0800 | [diff] [blame] | 1041 | " greater than fabric_max_sectors: %u\n", dev, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1042 | optimal_sectors, dev->dev_attrib.fabric_max_sectors); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1043 | return -EINVAL; |
| 1044 | } |
| 1045 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1046 | dev->dev_attrib.optimal_sectors = optimal_sectors; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1047 | pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1048 | dev, optimal_sectors); |
| 1049 | return 0; |
| 1050 | } |
| 1051 | |
| 1052 | int se_dev_set_block_size(struct se_device *dev, u32 block_size) |
| 1053 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1054 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1055 | pr_err("dev[%p]: Unable to change SE Device block_size" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1056 | " while export_count is %d\n", |
| 1057 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1058 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1059 | } |
| 1060 | |
| 1061 | if ((block_size != 512) && |
| 1062 | (block_size != 1024) && |
| 1063 | (block_size != 2048) && |
| 1064 | (block_size != 4096)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1065 | pr_err("dev[%p]: Illegal value for block_device: %u" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1066 | " for SE device, must be 512, 1024, 2048 or 4096\n", |
| 1067 | dev, block_size); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1068 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1069 | } |
| 1070 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1071 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1072 | pr_err("dev[%p]: Not allowed to change block_size for" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1073 | " Physical Device, use for Linux/SCSI to change" |
| 1074 | " block_size for underlying hardware\n", dev); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1075 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1076 | } |
| 1077 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1078 | dev->dev_attrib.block_size = block_size; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1079 | pr_debug("dev[%p]: SE Device block_size changed to %u\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1080 | dev, block_size); |
| 1081 | return 0; |
| 1082 | } |
| 1083 | |
| 1084 | struct se_lun *core_dev_add_lun( |
| 1085 | struct se_portal_group *tpg, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1086 | struct se_device *dev, |
| 1087 | u32 lun) |
| 1088 | { |
| 1089 | struct se_lun *lun_p; |
Sebastian Andrzej Siewior | 8d9efe5 | 2012-01-11 21:43:38 +0100 | [diff] [blame] | 1090 | int rc; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1091 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1092 | lun_p = core_tpg_pre_addlun(tpg, lun); |
Sebastian Andrzej Siewior | 8d9efe5 | 2012-01-11 21:43:38 +0100 | [diff] [blame] | 1093 | if (IS_ERR(lun_p)) |
| 1094 | return lun_p; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1095 | |
Nicholas Bellinger | 58d9261 | 2012-03-20 21:26:48 -0700 | [diff] [blame] | 1096 | rc = core_tpg_post_addlun(tpg, lun_p, |
| 1097 | TRANSPORT_LUNFLAGS_READ_WRITE, dev); |
Sebastian Andrzej Siewior | 8d9efe5 | 2012-01-11 21:43:38 +0100 | [diff] [blame] | 1098 | if (rc < 0) |
| 1099 | return ERR_PTR(rc); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1100 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1101 | pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from" |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1102 | " CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(), |
| 1103 | tpg->se_tpg_tfo->tpg_get_tag(tpg), lun_p->unpacked_lun, |
Andy Grover | 2dca673 | 2012-07-12 17:34:55 -0700 | [diff] [blame] | 1104 | tpg->se_tpg_tfo->get_fabric_name(), dev->se_hba->hba_id); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1105 | /* |
| 1106 | * Update LUN maps for dynamically added initiators when |
| 1107 | * generate_node_acl is enabled. |
| 1108 | */ |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1109 | if (tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1110 | struct se_node_acl *acl; |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1111 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1112 | list_for_each_entry(acl, &tpg->acl_node_list, acl_list) { |
Nicholas Bellinger | 052605c | 2011-07-26 17:48:43 -0700 | [diff] [blame] | 1113 | if (acl->dynamic_node_acl && |
| 1114 | (!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only || |
| 1115 | !tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg))) { |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1116 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1117 | core_tpg_add_node_to_devs(acl, tpg); |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1118 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1119 | } |
| 1120 | } |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1121 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1122 | } |
| 1123 | |
| 1124 | return lun_p; |
| 1125 | } |
| 1126 | |
| 1127 | /* core_dev_del_lun(): |
| 1128 | * |
| 1129 | * |
| 1130 | */ |
| 1131 | int core_dev_del_lun( |
| 1132 | struct se_portal_group *tpg, |
| 1133 | u32 unpacked_lun) |
| 1134 | { |
| 1135 | struct se_lun *lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1136 | |
Sebastian Andrzej Siewior | 8d9efe5 | 2012-01-11 21:43:38 +0100 | [diff] [blame] | 1137 | lun = core_tpg_pre_dellun(tpg, unpacked_lun); |
| 1138 | if (IS_ERR(lun)) |
| 1139 | return PTR_ERR(lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1140 | |
| 1141 | core_tpg_post_dellun(tpg, lun); |
| 1142 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1143 | pr_debug("%s_TPG[%u]_LUN[%u] - Deactivated %s Logical Unit from" |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1144 | " device object\n", tpg->se_tpg_tfo->get_fabric_name(), |
| 1145 | tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, |
| 1146 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1147 | |
| 1148 | return 0; |
| 1149 | } |
| 1150 | |
| 1151 | struct se_lun *core_get_lun_from_tpg(struct se_portal_group *tpg, u32 unpacked_lun) |
| 1152 | { |
| 1153 | struct se_lun *lun; |
| 1154 | |
| 1155 | spin_lock(&tpg->tpg_lun_lock); |
| 1156 | if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1157 | pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1158 | "_PER_TPG-1: %u for Target Portal Group: %hu\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1159 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1160 | TRANSPORT_MAX_LUNS_PER_TPG-1, |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1161 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1162 | spin_unlock(&tpg->tpg_lun_lock); |
| 1163 | return NULL; |
| 1164 | } |
Jörn Engel | 4a5a75f | 2012-03-15 15:05:12 -0400 | [diff] [blame] | 1165 | lun = tpg->tpg_lun_list[unpacked_lun]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1166 | |
| 1167 | if (lun->lun_status != TRANSPORT_LUN_STATUS_FREE) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1168 | pr_err("%s Logical Unit Number: %u is not free on" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1169 | " Target Portal Group: %hu, ignoring request.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1170 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
| 1171 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1172 | spin_unlock(&tpg->tpg_lun_lock); |
| 1173 | return NULL; |
| 1174 | } |
| 1175 | spin_unlock(&tpg->tpg_lun_lock); |
| 1176 | |
| 1177 | return lun; |
| 1178 | } |
| 1179 | |
| 1180 | /* core_dev_get_lun(): |
| 1181 | * |
| 1182 | * |
| 1183 | */ |
| 1184 | static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked_lun) |
| 1185 | { |
| 1186 | struct se_lun *lun; |
| 1187 | |
| 1188 | spin_lock(&tpg->tpg_lun_lock); |
| 1189 | if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1190 | pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1191 | "_TPG-1: %u for Target Portal Group: %hu\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1192 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1193 | TRANSPORT_MAX_LUNS_PER_TPG-1, |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1194 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1195 | spin_unlock(&tpg->tpg_lun_lock); |
| 1196 | return NULL; |
| 1197 | } |
Jörn Engel | 4a5a75f | 2012-03-15 15:05:12 -0400 | [diff] [blame] | 1198 | lun = tpg->tpg_lun_list[unpacked_lun]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1199 | |
| 1200 | if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1201 | pr_err("%s Logical Unit Number: %u is not active on" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1202 | " Target Portal Group: %hu, ignoring request.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1203 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
| 1204 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1205 | spin_unlock(&tpg->tpg_lun_lock); |
| 1206 | return NULL; |
| 1207 | } |
| 1208 | spin_unlock(&tpg->tpg_lun_lock); |
| 1209 | |
| 1210 | return lun; |
| 1211 | } |
| 1212 | |
| 1213 | struct se_lun_acl *core_dev_init_initiator_node_lun_acl( |
| 1214 | struct se_portal_group *tpg, |
Nicholas Bellinger | fcf2948 | 2013-02-18 18:00:33 -0800 | [diff] [blame] | 1215 | struct se_node_acl *nacl, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1216 | u32 mapped_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1217 | int *ret) |
| 1218 | { |
| 1219 | struct se_lun_acl *lacl; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1220 | |
Nicholas Bellinger | fcf2948 | 2013-02-18 18:00:33 -0800 | [diff] [blame] | 1221 | if (strlen(nacl->initiatorname) >= TRANSPORT_IQN_LEN) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1222 | pr_err("%s InitiatorName exceeds maximum size.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1223 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1224 | *ret = -EOVERFLOW; |
| 1225 | return NULL; |
| 1226 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1227 | lacl = kzalloc(sizeof(struct se_lun_acl), GFP_KERNEL); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1228 | if (!lacl) { |
| 1229 | pr_err("Unable to allocate memory for struct se_lun_acl.\n"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1230 | *ret = -ENOMEM; |
| 1231 | return NULL; |
| 1232 | } |
| 1233 | |
| 1234 | INIT_LIST_HEAD(&lacl->lacl_list); |
| 1235 | lacl->mapped_lun = mapped_lun; |
| 1236 | lacl->se_lun_nacl = nacl; |
Nicholas Bellinger | fcf2948 | 2013-02-18 18:00:33 -0800 | [diff] [blame] | 1237 | snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", |
| 1238 | nacl->initiatorname); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1239 | |
| 1240 | return lacl; |
| 1241 | } |
| 1242 | |
| 1243 | int core_dev_add_initiator_node_lun_acl( |
| 1244 | struct se_portal_group *tpg, |
| 1245 | struct se_lun_acl *lacl, |
| 1246 | u32 unpacked_lun, |
| 1247 | u32 lun_access) |
| 1248 | { |
| 1249 | struct se_lun *lun; |
| 1250 | struct se_node_acl *nacl; |
| 1251 | |
| 1252 | lun = core_dev_get_lun(tpg, unpacked_lun); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1253 | if (!lun) { |
| 1254 | pr_err("%s Logical Unit Number: %u is not active on" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1255 | " Target Portal Group: %hu, ignoring request.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1256 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
| 1257 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1258 | return -EINVAL; |
| 1259 | } |
| 1260 | |
| 1261 | nacl = lacl->se_lun_nacl; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1262 | if (!nacl) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1263 | return -EINVAL; |
| 1264 | |
| 1265 | if ((lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) && |
| 1266 | (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE)) |
| 1267 | lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; |
| 1268 | |
| 1269 | lacl->se_lun = lun; |
| 1270 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 1271 | if (core_enable_device_list_for_node(lun, lacl, lacl->mapped_lun, |
| 1272 | lun_access, nacl, tpg) < 0) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1273 | return -EINVAL; |
| 1274 | |
| 1275 | spin_lock(&lun->lun_acl_lock); |
| 1276 | list_add_tail(&lacl->lacl_list, &lun->lun_acl_list); |
| 1277 | atomic_inc(&lun->lun_acl_count); |
| 1278 | smp_mb__after_atomic_inc(); |
| 1279 | spin_unlock(&lun->lun_acl_lock); |
| 1280 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1281 | pr_debug("%s_TPG[%hu]_LUN[%u->%u] - Added %s ACL for " |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1282 | " InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(), |
| 1283 | tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, lacl->mapped_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1284 | (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO", |
| 1285 | lacl->initiatorname); |
| 1286 | /* |
| 1287 | * Check to see if there are any existing persistent reservation APTPL |
| 1288 | * pre-registrations that need to be enabled for this LUN ACL.. |
| 1289 | */ |
| 1290 | core_scsi3_check_aptpl_registration(lun->lun_se_dev, tpg, lun, lacl); |
| 1291 | return 0; |
| 1292 | } |
| 1293 | |
| 1294 | /* core_dev_del_initiator_node_lun_acl(): |
| 1295 | * |
| 1296 | * |
| 1297 | */ |
| 1298 | int core_dev_del_initiator_node_lun_acl( |
| 1299 | struct se_portal_group *tpg, |
| 1300 | struct se_lun *lun, |
| 1301 | struct se_lun_acl *lacl) |
| 1302 | { |
| 1303 | struct se_node_acl *nacl; |
| 1304 | |
| 1305 | nacl = lacl->se_lun_nacl; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1306 | if (!nacl) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1307 | return -EINVAL; |
| 1308 | |
| 1309 | spin_lock(&lun->lun_acl_lock); |
| 1310 | list_del(&lacl->lacl_list); |
| 1311 | atomic_dec(&lun->lun_acl_count); |
| 1312 | smp_mb__after_atomic_dec(); |
| 1313 | spin_unlock(&lun->lun_acl_lock); |
| 1314 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 1315 | core_disable_device_list_for_node(lun, NULL, lacl->mapped_lun, |
| 1316 | TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1317 | |
| 1318 | lacl->se_lun = NULL; |
| 1319 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1320 | pr_debug("%s_TPG[%hu]_LUN[%u] - Removed ACL for" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1321 | " InitiatorNode: %s Mapped LUN: %u\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1322 | tpg->se_tpg_tfo->get_fabric_name(), |
| 1323 | tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1324 | lacl->initiatorname, lacl->mapped_lun); |
| 1325 | |
| 1326 | return 0; |
| 1327 | } |
| 1328 | |
| 1329 | void core_dev_free_initiator_node_lun_acl( |
| 1330 | struct se_portal_group *tpg, |
| 1331 | struct se_lun_acl *lacl) |
| 1332 | { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1333 | pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s" |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1334 | " Mapped LUN: %u\n", tpg->se_tpg_tfo->get_fabric_name(), |
| 1335 | tpg->se_tpg_tfo->tpg_get_tag(tpg), |
| 1336 | tpg->se_tpg_tfo->get_fabric_name(), |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1337 | lacl->initiatorname, lacl->mapped_lun); |
| 1338 | |
| 1339 | kfree(lacl); |
| 1340 | } |
| 1341 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1342 | static void scsi_dump_inquiry(struct se_device *dev) |
| 1343 | { |
| 1344 | struct t10_wwn *wwn = &dev->t10_wwn; |
| 1345 | char buf[17]; |
| 1346 | int i, device_type; |
| 1347 | /* |
| 1348 | * Print Linux/SCSI style INQUIRY formatting to the kernel ring buffer |
| 1349 | */ |
| 1350 | for (i = 0; i < 8; i++) |
| 1351 | if (wwn->vendor[i] >= 0x20) |
| 1352 | buf[i] = wwn->vendor[i]; |
| 1353 | else |
| 1354 | buf[i] = ' '; |
| 1355 | buf[i] = '\0'; |
| 1356 | pr_debug(" Vendor: %s\n", buf); |
| 1357 | |
| 1358 | for (i = 0; i < 16; i++) |
| 1359 | if (wwn->model[i] >= 0x20) |
| 1360 | buf[i] = wwn->model[i]; |
| 1361 | else |
| 1362 | buf[i] = ' '; |
| 1363 | buf[i] = '\0'; |
| 1364 | pr_debug(" Model: %s\n", buf); |
| 1365 | |
| 1366 | for (i = 0; i < 4; i++) |
| 1367 | if (wwn->revision[i] >= 0x20) |
| 1368 | buf[i] = wwn->revision[i]; |
| 1369 | else |
| 1370 | buf[i] = ' '; |
| 1371 | buf[i] = '\0'; |
| 1372 | pr_debug(" Revision: %s\n", buf); |
| 1373 | |
| 1374 | device_type = dev->transport->get_device_type(dev); |
| 1375 | pr_debug(" Type: %s ", scsi_device_type(device_type)); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1376 | } |
| 1377 | |
| 1378 | struct se_device *target_alloc_device(struct se_hba *hba, const char *name) |
| 1379 | { |
| 1380 | struct se_device *dev; |
| 1381 | |
| 1382 | dev = hba->transport->alloc_device(hba, name); |
| 1383 | if (!dev) |
| 1384 | return NULL; |
| 1385 | |
Nicholas Bellinger | 0ff8754 | 2012-12-04 23:43:57 -0800 | [diff] [blame] | 1386 | dev->dev_link_magic = SE_DEV_LINK_MAGIC; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1387 | dev->se_hba = hba; |
| 1388 | dev->transport = hba->transport; |
| 1389 | |
| 1390 | INIT_LIST_HEAD(&dev->dev_list); |
| 1391 | INIT_LIST_HEAD(&dev->dev_sep_list); |
| 1392 | INIT_LIST_HEAD(&dev->dev_tmr_list); |
| 1393 | INIT_LIST_HEAD(&dev->delayed_cmd_list); |
| 1394 | INIT_LIST_HEAD(&dev->state_list); |
| 1395 | INIT_LIST_HEAD(&dev->qf_cmd_list); |
| 1396 | spin_lock_init(&dev->stats_lock); |
| 1397 | spin_lock_init(&dev->execute_task_lock); |
| 1398 | spin_lock_init(&dev->delayed_cmd_lock); |
| 1399 | spin_lock_init(&dev->dev_reservation_lock); |
| 1400 | spin_lock_init(&dev->se_port_lock); |
| 1401 | spin_lock_init(&dev->se_tmr_lock); |
| 1402 | spin_lock_init(&dev->qf_cmd_lock); |
| 1403 | atomic_set(&dev->dev_ordered_id, 0); |
| 1404 | INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list); |
| 1405 | spin_lock_init(&dev->t10_wwn.t10_vpd_lock); |
| 1406 | INIT_LIST_HEAD(&dev->t10_pr.registration_list); |
| 1407 | INIT_LIST_HEAD(&dev->t10_pr.aptpl_reg_list); |
| 1408 | spin_lock_init(&dev->t10_pr.registration_lock); |
| 1409 | spin_lock_init(&dev->t10_pr.aptpl_reg_lock); |
| 1410 | INIT_LIST_HEAD(&dev->t10_alua.tg_pt_gps_list); |
| 1411 | spin_lock_init(&dev->t10_alua.tg_pt_gps_lock); |
| 1412 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1413 | dev->t10_wwn.t10_dev = dev; |
| 1414 | dev->t10_alua.t10_dev = dev; |
| 1415 | |
| 1416 | dev->dev_attrib.da_dev = dev; |
Tregaron Bayly | adfa957 | 2013-01-31 15:30:24 -0700 | [diff] [blame] | 1417 | dev->dev_attrib.emulate_model_alias = DA_EMULATE_MODEL_ALIAS; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1418 | dev->dev_attrib.emulate_dpo = DA_EMULATE_DPO; |
| 1419 | dev->dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE; |
| 1420 | dev->dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ; |
| 1421 | dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE; |
| 1422 | dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL; |
| 1423 | dev->dev_attrib.emulate_tas = DA_EMULATE_TAS; |
| 1424 | dev->dev_attrib.emulate_tpu = DA_EMULATE_TPU; |
| 1425 | dev->dev_attrib.emulate_tpws = DA_EMULATE_TPWS; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1426 | dev->dev_attrib.enforce_pr_isids = DA_ENFORCE_PR_ISIDS; |
| 1427 | dev->dev_attrib.is_nonrot = DA_IS_NONROT; |
| 1428 | dev->dev_attrib.emulate_rest_reord = DA_EMULATE_REST_REORD; |
| 1429 | dev->dev_attrib.max_unmap_lba_count = DA_MAX_UNMAP_LBA_COUNT; |
| 1430 | dev->dev_attrib.max_unmap_block_desc_count = |
| 1431 | DA_MAX_UNMAP_BLOCK_DESC_COUNT; |
| 1432 | dev->dev_attrib.unmap_granularity = DA_UNMAP_GRANULARITY_DEFAULT; |
| 1433 | dev->dev_attrib.unmap_granularity_alignment = |
| 1434 | DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT; |
Nicholas Bellinger | 773cbaf | 2012-11-15 11:02:49 -0800 | [diff] [blame] | 1435 | dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1436 | dev->dev_attrib.fabric_max_sectors = DA_FABRIC_MAX_SECTORS; |
| 1437 | dev->dev_attrib.optimal_sectors = DA_FABRIC_MAX_SECTORS; |
| 1438 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1439 | return dev; |
| 1440 | } |
| 1441 | |
| 1442 | int target_configure_device(struct se_device *dev) |
| 1443 | { |
| 1444 | struct se_hba *hba = dev->se_hba; |
| 1445 | int ret; |
| 1446 | |
| 1447 | if (dev->dev_flags & DF_CONFIGURED) { |
| 1448 | pr_err("se_dev->se_dev_ptr already set for storage" |
| 1449 | " object\n"); |
| 1450 | return -EEXIST; |
| 1451 | } |
| 1452 | |
| 1453 | ret = dev->transport->configure_device(dev); |
| 1454 | if (ret) |
| 1455 | goto out; |
| 1456 | dev->dev_flags |= DF_CONFIGURED; |
| 1457 | |
| 1458 | /* |
| 1459 | * XXX: there is not much point to have two different values here.. |
| 1460 | */ |
| 1461 | dev->dev_attrib.block_size = dev->dev_attrib.hw_block_size; |
| 1462 | dev->dev_attrib.queue_depth = dev->dev_attrib.hw_queue_depth; |
| 1463 | |
| 1464 | /* |
| 1465 | * Align max_hw_sectors down to PAGE_SIZE I/O transfers |
| 1466 | */ |
| 1467 | dev->dev_attrib.hw_max_sectors = |
| 1468 | se_dev_align_max_sectors(dev->dev_attrib.hw_max_sectors, |
| 1469 | dev->dev_attrib.hw_block_size); |
| 1470 | |
| 1471 | dev->dev_index = scsi_get_new_index(SCSI_DEVICE_INDEX); |
| 1472 | dev->creation_time = get_jiffies_64(); |
| 1473 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1474 | ret = core_setup_alua(dev); |
| 1475 | if (ret) |
| 1476 | goto out; |
| 1477 | |
| 1478 | /* |
| 1479 | * Startup the struct se_device processing thread |
| 1480 | */ |
| 1481 | dev->tmr_wq = alloc_workqueue("tmr-%s", WQ_MEM_RECLAIM | WQ_UNBOUND, 1, |
| 1482 | dev->transport->name); |
| 1483 | if (!dev->tmr_wq) { |
| 1484 | pr_err("Unable to create tmr workqueue for %s\n", |
| 1485 | dev->transport->name); |
| 1486 | ret = -ENOMEM; |
| 1487 | goto out_free_alua; |
| 1488 | } |
| 1489 | |
| 1490 | /* |
| 1491 | * Setup work_queue for QUEUE_FULL |
| 1492 | */ |
| 1493 | INIT_WORK(&dev->qf_work_queue, target_qf_do_work); |
| 1494 | |
| 1495 | /* |
| 1496 | * Preload the initial INQUIRY const values if we are doing |
| 1497 | * anything virtual (IBLOCK, FILEIO, RAMDISK), but not for TCM/pSCSI |
| 1498 | * passthrough because this is being provided by the backend LLD. |
| 1499 | */ |
| 1500 | if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV) { |
| 1501 | strncpy(&dev->t10_wwn.vendor[0], "LIO-ORG", 8); |
| 1502 | strncpy(&dev->t10_wwn.model[0], |
| 1503 | dev->transport->inquiry_prod, 16); |
| 1504 | strncpy(&dev->t10_wwn.revision[0], |
| 1505 | dev->transport->inquiry_rev, 4); |
| 1506 | } |
| 1507 | |
| 1508 | scsi_dump_inquiry(dev); |
| 1509 | |
| 1510 | spin_lock(&hba->device_lock); |
| 1511 | hba->dev_count++; |
| 1512 | spin_unlock(&hba->device_lock); |
| 1513 | return 0; |
| 1514 | |
| 1515 | out_free_alua: |
| 1516 | core_alua_free_lu_gp_mem(dev); |
| 1517 | out: |
| 1518 | se_release_vpd_for_dev(dev); |
| 1519 | return ret; |
| 1520 | } |
| 1521 | |
| 1522 | void target_free_device(struct se_device *dev) |
| 1523 | { |
| 1524 | struct se_hba *hba = dev->se_hba; |
| 1525 | |
| 1526 | WARN_ON(!list_empty(&dev->dev_sep_list)); |
| 1527 | |
| 1528 | if (dev->dev_flags & DF_CONFIGURED) { |
| 1529 | destroy_workqueue(dev->tmr_wq); |
| 1530 | |
| 1531 | spin_lock(&hba->device_lock); |
| 1532 | hba->dev_count--; |
| 1533 | spin_unlock(&hba->device_lock); |
| 1534 | } |
| 1535 | |
| 1536 | core_alua_free_lu_gp_mem(dev); |
| 1537 | core_scsi3_free_all_registrations(dev); |
| 1538 | se_release_vpd_for_dev(dev); |
| 1539 | |
| 1540 | dev->transport->free_device(dev); |
| 1541 | } |
| 1542 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1543 | int core_dev_setup_virtual_lun0(void) |
| 1544 | { |
| 1545 | struct se_hba *hba; |
| 1546 | struct se_device *dev; |
Andy Grover | db5d1c3 | 2013-05-28 16:55:20 -0700 | [diff] [blame] | 1547 | char buf[] = "rd_pages=8,rd_nullio=1"; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1548 | int ret; |
| 1549 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1550 | hba = core_alloc_hba("rd_mcp", 0, HBA_FLAGS_INTERNAL_USE); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1551 | if (IS_ERR(hba)) |
| 1552 | return PTR_ERR(hba); |
| 1553 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1554 | dev = target_alloc_device(hba, "virt_lun0"); |
| 1555 | if (!dev) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1556 | ret = -ENOMEM; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1557 | goto out_free_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1558 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1559 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1560 | hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1561 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1562 | ret = target_configure_device(dev); |
| 1563 | if (ret) |
| 1564 | goto out_free_se_dev; |
| 1565 | |
| 1566 | lun0_hba = hba; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1567 | g_lun0_dev = dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1568 | return 0; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1569 | |
| 1570 | out_free_se_dev: |
| 1571 | target_free_device(dev); |
| 1572 | out_free_hba: |
| 1573 | core_delete_hba(hba); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1574 | return ret; |
| 1575 | } |
| 1576 | |
| 1577 | |
| 1578 | void core_dev_release_virtual_lun0(void) |
| 1579 | { |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1580 | struct se_hba *hba = lun0_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1581 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1582 | if (!hba) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1583 | return; |
| 1584 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1585 | if (g_lun0_dev) |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1586 | target_free_device(g_lun0_dev); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1587 | core_delete_hba(hba); |
| 1588 | } |