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 | 4c76251 | 2013-09-05 15:29:12 -0700 | [diff] [blame] | 7 | * (c) Copyright 2003-2013 Datera, Inc. |
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> |
Andy Grover | 7bfea53b | 2015-05-19 14:44:40 -0700 | [diff] [blame] | 36 | #include <asm/unaligned.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 37 | #include <net/sock.h> |
| 38 | #include <net/tcp.h> |
| 39 | #include <scsi/scsi.h> |
Nicholas Bellinger | 1078da1 | 2011-05-19 20:19:13 -0700 | [diff] [blame] | 40 | #include <scsi/scsi_device.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 41 | |
| 42 | #include <target/target_core_base.h> |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 43 | #include <target/target_core_backend.h> |
| 44 | #include <target/target_core_fabric.h> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 45 | |
Christoph Hellwig | e26d99a | 2011-11-14 12:30:30 -0500 | [diff] [blame] | 46 | #include "target_core_internal.h" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 47 | #include "target_core_alua.h" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 48 | #include "target_core_pr.h" |
| 49 | #include "target_core_ua.h" |
| 50 | |
Nicholas Bellinger | d9ea32b | 2013-08-22 11:33:37 -0700 | [diff] [blame] | 51 | DEFINE_MUTEX(g_device_mutex); |
| 52 | LIST_HEAD(g_device_list); |
| 53 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 54 | static struct se_hba *lun0_hba; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 55 | /* not static, needed by tpg.c */ |
| 56 | struct se_device *g_lun0_dev; |
| 57 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 58 | sense_reason_t |
| 59 | transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 60 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 61 | struct se_lun *se_lun = NULL; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 62 | struct se_session *se_sess = se_cmd->se_sess; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 63 | struct se_device *dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 64 | unsigned long flags; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 65 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 66 | if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) |
| 67 | return TCM_NON_EXISTENT_LUN; |
Fubo Chen | d814495 | 2011-02-13 15:13:42 -0800 | [diff] [blame] | 68 | |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 69 | spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 70 | 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] | 71 | if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
| 72 | struct se_dev_entry *deve = se_cmd->se_deve; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 73 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 74 | deve->total_cmds++; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 75 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 76 | if ((se_cmd->data_direction == DMA_TO_DEVICE) && |
| 77 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 78 | pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 79 | " Access for 0x%08x\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 80 | se_cmd->se_tfo->get_fabric_name(), |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 81 | unpacked_lun); |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 82 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 83 | return TCM_WRITE_PROTECTED; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 84 | } |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 85 | |
| 86 | if (se_cmd->data_direction == DMA_TO_DEVICE) |
| 87 | deve->write_bytes += se_cmd->data_length; |
| 88 | else if (se_cmd->data_direction == DMA_FROM_DEVICE) |
| 89 | deve->read_bytes += se_cmd->data_length; |
| 90 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 91 | se_lun = deve->se_lun; |
| 92 | se_cmd->se_lun = deve->se_lun; |
| 93 | se_cmd->pr_res_key = deve->pr_res_key; |
| 94 | se_cmd->orig_fe_lun = unpacked_lun; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 95 | se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; |
Nicholas Bellinger | 5277797 | 2013-11-06 21:03:43 -0800 | [diff] [blame] | 96 | |
| 97 | percpu_ref_get(&se_lun->lun_ref); |
| 98 | se_cmd->lun_ref_active = true; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 99 | } |
Roland Dreier | 78faae3 | 2011-07-20 09:09:10 +0000 | [diff] [blame] | 100 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 101 | |
| 102 | if (!se_lun) { |
| 103 | /* |
| 104 | * Use the se_portal_group->tpg_virt_lun0 to allow for |
| 105 | * REPORT_LUNS, et al to be returned when no active |
| 106 | * MappedLUN=0 exists for this Initiator Port. |
| 107 | */ |
| 108 | if (unpacked_lun != 0) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 109 | pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 110 | " Access for 0x%08x\n", |
| 111 | se_cmd->se_tfo->get_fabric_name(), |
| 112 | unpacked_lun); |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 113 | return TCM_NON_EXISTENT_LUN; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 114 | } |
| 115 | /* |
| 116 | * Force WRITE PROTECT for virtual LUN 0 |
| 117 | */ |
| 118 | if ((se_cmd->data_direction != DMA_FROM_DEVICE) && |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 119 | (se_cmd->data_direction != DMA_NONE)) |
| 120 | return TCM_WRITE_PROTECTED; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 121 | |
| 122 | se_lun = &se_sess->se_tpg->tpg_virt_lun0; |
| 123 | se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0; |
| 124 | se_cmd->orig_fe_lun = 0; |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 125 | se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; |
Nicholas Bellinger | 5277797 | 2013-11-06 21:03:43 -0800 | [diff] [blame] | 126 | |
| 127 | percpu_ref_get(&se_lun->lun_ref); |
| 128 | se_cmd->lun_ref_active = true; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 129 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 130 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 131 | /* Directly associate cmd with se_dev */ |
| 132 | se_cmd->se_dev = se_lun->lun_se_dev; |
| 133 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 134 | dev = se_lun->lun_se_dev; |
Nicholas Bellinger | ee48068 | 2013-11-13 18:34:55 -0800 | [diff] [blame] | 135 | atomic_long_inc(&dev->num_cmds); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 136 | if (se_cmd->data_direction == DMA_TO_DEVICE) |
Nicholas Bellinger | ee48068 | 2013-11-13 18:34:55 -0800 | [diff] [blame] | 137 | atomic_long_add(se_cmd->data_length, &dev->write_bytes); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 138 | else if (se_cmd->data_direction == DMA_FROM_DEVICE) |
Nicholas Bellinger | ee48068 | 2013-11-13 18:34:55 -0800 | [diff] [blame] | 139 | atomic_long_add(se_cmd->data_length, &dev->read_bytes); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 140 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 141 | return 0; |
| 142 | } |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 143 | EXPORT_SYMBOL(transport_lookup_cmd_lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 144 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 145 | 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] | 146 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 147 | struct se_dev_entry *deve; |
| 148 | struct se_lun *se_lun = NULL; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 149 | struct se_session *se_sess = se_cmd->se_sess; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 150 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 151 | unsigned long flags; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 152 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 153 | if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 154 | return -ENODEV; |
Fubo Chen | d814495 | 2011-02-13 15:13:42 -0800 | [diff] [blame] | 155 | |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 156 | spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 157 | 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] | 158 | deve = se_cmd->se_deve; |
| 159 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 160 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 161 | se_tmr->tmr_lun = deve->se_lun; |
| 162 | se_cmd->se_lun = deve->se_lun; |
| 163 | se_lun = deve->se_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 164 | se_cmd->pr_res_key = deve->pr_res_key; |
| 165 | se_cmd->orig_fe_lun = unpacked_lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 166 | } |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 167 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 168 | |
| 169 | if (!se_lun) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 170 | pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 171 | " Access for 0x%08x\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 172 | se_cmd->se_tfo->get_fabric_name(), |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 173 | unpacked_lun); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 174 | return -ENODEV; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 175 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 176 | |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 177 | /* Directly associate cmd with se_dev */ |
| 178 | se_cmd->se_dev = se_lun->lun_se_dev; |
| 179 | se_tmr->tmr_dev = se_lun->lun_se_dev; |
| 180 | |
Roland Dreier | 5e1be91 | 2011-07-20 09:28:56 +0000 | [diff] [blame] | 181 | spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags); |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 182 | 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] | 183 | spin_unlock_irqrestore(&se_tmr->tmr_dev->se_tmr_lock, flags); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 184 | |
| 185 | return 0; |
| 186 | } |
Andy Grover | 5951146d | 2011-07-19 10:26:37 +0000 | [diff] [blame] | 187 | EXPORT_SYMBOL(transport_lookup_tmr_lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 188 | |
| 189 | /* |
| 190 | * This function is called from core_scsi3_emulate_pro_register_and_move() |
| 191 | * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_ref_count |
| 192 | * when a matching rtpi is found. |
| 193 | */ |
| 194 | struct se_dev_entry *core_get_se_deve_from_rtpi( |
| 195 | struct se_node_acl *nacl, |
| 196 | u16 rtpi) |
| 197 | { |
| 198 | struct se_dev_entry *deve; |
| 199 | struct se_lun *lun; |
| 200 | struct se_port *port; |
| 201 | struct se_portal_group *tpg = nacl->se_tpg; |
| 202 | u32 i; |
| 203 | |
| 204 | spin_lock_irq(&nacl->device_list_lock); |
| 205 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 206 | deve = nacl->device_list[i]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 207 | |
| 208 | if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) |
| 209 | continue; |
| 210 | |
| 211 | lun = deve->se_lun; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 212 | if (!lun) { |
| 213 | pr_err("%s device entries device pointer is" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 214 | " NULL, but Initiator has access.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 215 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 216 | continue; |
| 217 | } |
| 218 | port = lun->lun_sep; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 219 | if (!port) { |
| 220 | pr_err("%s device entries device pointer is" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 221 | " NULL, but Initiator has access.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 222 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 223 | continue; |
| 224 | } |
| 225 | if (port->sep_rtpi != rtpi) |
| 226 | continue; |
| 227 | |
Joern Engel | 33940d0 | 2014-09-16 16:23:12 -0400 | [diff] [blame] | 228 | atomic_inc_mb(&deve->pr_ref_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 229 | spin_unlock_irq(&nacl->device_list_lock); |
| 230 | |
| 231 | return deve; |
| 232 | } |
| 233 | spin_unlock_irq(&nacl->device_list_lock); |
| 234 | |
| 235 | return NULL; |
| 236 | } |
| 237 | |
| 238 | int core_free_device_list_for_node( |
| 239 | struct se_node_acl *nacl, |
| 240 | struct se_portal_group *tpg) |
| 241 | { |
| 242 | struct se_dev_entry *deve; |
| 243 | struct se_lun *lun; |
| 244 | u32 i; |
| 245 | |
| 246 | if (!nacl->device_list) |
| 247 | return 0; |
| 248 | |
| 249 | spin_lock_irq(&nacl->device_list_lock); |
| 250 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 251 | deve = nacl->device_list[i]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 252 | |
| 253 | if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) |
| 254 | continue; |
| 255 | |
| 256 | if (!deve->se_lun) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 257 | pr_err("%s device entries device pointer is" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 258 | " NULL, but Initiator has access.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 259 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 260 | continue; |
| 261 | } |
| 262 | lun = deve->se_lun; |
| 263 | |
| 264 | spin_unlock_irq(&nacl->device_list_lock); |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 265 | core_disable_device_list_for_node(lun, NULL, deve->mapped_lun, |
| 266 | TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 267 | spin_lock_irq(&nacl->device_list_lock); |
| 268 | } |
| 269 | spin_unlock_irq(&nacl->device_list_lock); |
| 270 | |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 271 | array_free(nacl->device_list, TRANSPORT_MAX_LUNS_PER_TPG); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 272 | nacl->device_list = NULL; |
| 273 | |
| 274 | return 0; |
| 275 | } |
| 276 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 277 | void core_update_device_list_access( |
| 278 | u32 mapped_lun, |
| 279 | u32 lun_access, |
| 280 | struct se_node_acl *nacl) |
| 281 | { |
| 282 | struct se_dev_entry *deve; |
| 283 | |
| 284 | spin_lock_irq(&nacl->device_list_lock); |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 285 | deve = nacl->device_list[mapped_lun]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 286 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
| 287 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; |
| 288 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; |
| 289 | } else { |
| 290 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; |
| 291 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; |
| 292 | } |
| 293 | spin_unlock_irq(&nacl->device_list_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 294 | } |
| 295 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 296 | /* core_enable_device_list_for_node(): |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 297 | * |
| 298 | * |
| 299 | */ |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 300 | int core_enable_device_list_for_node( |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 301 | struct se_lun *lun, |
| 302 | struct se_lun_acl *lun_acl, |
| 303 | u32 mapped_lun, |
| 304 | u32 lun_access, |
| 305 | struct se_node_acl *nacl, |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 306 | struct se_portal_group *tpg) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 307 | { |
| 308 | struct se_port *port = lun->lun_sep; |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 309 | struct se_dev_entry *deve; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 310 | |
| 311 | spin_lock_irq(&nacl->device_list_lock); |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 312 | |
| 313 | deve = nacl->device_list[mapped_lun]; |
| 314 | |
| 315 | /* |
Hannes Reinecke | 125d011 | 2013-11-19 09:07:46 +0100 | [diff] [blame] | 316 | * Check if the call is handling demo mode -> explicit LUN ACL |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 317 | * transition. This transition must be for the same struct se_lun |
| 318 | * + mapped_lun that was setup in demo mode.. |
| 319 | */ |
| 320 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
| 321 | if (deve->se_lun_acl != NULL) { |
| 322 | pr_err("struct se_dev_entry->se_lun_acl" |
Hannes Reinecke | 125d011 | 2013-11-19 09:07:46 +0100 | [diff] [blame] | 323 | " already set for demo mode -> explicit" |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 324 | " LUN ACL transition\n"); |
| 325 | spin_unlock_irq(&nacl->device_list_lock); |
| 326 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 327 | } |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 328 | if (deve->se_lun != lun) { |
| 329 | pr_err("struct se_dev_entry->se_lun does" |
| 330 | " match passed struct se_lun for demo mode" |
Hannes Reinecke | 125d011 | 2013-11-19 09:07:46 +0100 | [diff] [blame] | 331 | " -> explicit LUN ACL transition\n"); |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 332 | spin_unlock_irq(&nacl->device_list_lock); |
| 333 | return -EINVAL; |
| 334 | } |
| 335 | deve->se_lun_acl = lun_acl; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 336 | |
| 337 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
| 338 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; |
| 339 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; |
| 340 | } else { |
| 341 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; |
| 342 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; |
| 343 | } |
| 344 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 345 | spin_unlock_irq(&nacl->device_list_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 346 | return 0; |
| 347 | } |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 348 | |
| 349 | deve->se_lun = lun; |
| 350 | deve->se_lun_acl = lun_acl; |
| 351 | deve->mapped_lun = mapped_lun; |
| 352 | deve->lun_flags |= TRANSPORT_LUNFLAGS_INITIATOR_ACCESS; |
| 353 | |
| 354 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
| 355 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; |
| 356 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; |
| 357 | } else { |
| 358 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; |
| 359 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; |
| 360 | } |
| 361 | |
| 362 | deve->creation_time = get_jiffies_64(); |
| 363 | deve->attach_count++; |
| 364 | spin_unlock_irq(&nacl->device_list_lock); |
| 365 | |
| 366 | spin_lock_bh(&port->sep_alua_lock); |
| 367 | list_add_tail(&deve->alua_port_list, &port->sep_alua_list); |
| 368 | spin_unlock_bh(&port->sep_alua_lock); |
| 369 | |
| 370 | return 0; |
| 371 | } |
| 372 | |
| 373 | /* core_disable_device_list_for_node(): |
| 374 | * |
| 375 | * |
| 376 | */ |
| 377 | int core_disable_device_list_for_node( |
| 378 | struct se_lun *lun, |
| 379 | struct se_lun_acl *lun_acl, |
| 380 | u32 mapped_lun, |
| 381 | u32 lun_access, |
| 382 | struct se_node_acl *nacl, |
| 383 | struct se_portal_group *tpg) |
| 384 | { |
| 385 | struct se_port *port = lun->lun_sep; |
Nicholas Bellinger | 77d4c74 | 2012-07-14 15:11:41 -0700 | [diff] [blame] | 386 | struct se_dev_entry *deve = nacl->device_list[mapped_lun]; |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 387 | |
| 388 | /* |
| 389 | * If the MappedLUN entry is being disabled, the entry in |
| 390 | * port->sep_alua_list must be removed now before clearing the |
| 391 | * struct se_dev_entry pointers below as logic in |
| 392 | * core_alua_do_transition_tg_pt() depends on these being present. |
| 393 | * |
| 394 | * deve->se_lun_acl will be NULL for demo-mode created LUNs |
| 395 | * that have not been explicitly converted to MappedLUNs -> |
| 396 | * struct se_lun_acl, but we remove deve->alua_port_list from |
| 397 | * port->sep_alua_list. This also means that active UAs and |
| 398 | * NodeACL context specific PR metadata for demo-mode |
| 399 | * MappedLUN *deve will be released below.. |
| 400 | */ |
| 401 | spin_lock_bh(&port->sep_alua_lock); |
| 402 | list_del(&deve->alua_port_list); |
| 403 | spin_unlock_bh(&port->sep_alua_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 404 | /* |
| 405 | * Wait for any in process SPEC_I_PT=1 or REGISTER_AND_MOVE |
| 406 | * PR operation to complete. |
| 407 | */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 408 | while (atomic_read(&deve->pr_ref_count) != 0) |
| 409 | cpu_relax(); |
Nicholas Bellinger | 77d4c74 | 2012-07-14 15:11:41 -0700 | [diff] [blame] | 410 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 411 | spin_lock_irq(&nacl->device_list_lock); |
| 412 | /* |
| 413 | * Disable struct se_dev_entry LUN ACL mapping |
| 414 | */ |
| 415 | core_scsi3_ua_release_all(deve); |
| 416 | deve->se_lun = NULL; |
| 417 | deve->se_lun_acl = NULL; |
| 418 | deve->lun_flags = 0; |
| 419 | deve->creation_time = 0; |
| 420 | deve->attach_count--; |
| 421 | spin_unlock_irq(&nacl->device_list_lock); |
| 422 | |
| 423 | core_scsi3_free_pr_reg_from_nacl(lun->lun_se_dev, nacl); |
| 424 | return 0; |
| 425 | } |
| 426 | |
| 427 | /* core_clear_lun_from_tpg(): |
| 428 | * |
| 429 | * |
| 430 | */ |
| 431 | void core_clear_lun_from_tpg(struct se_lun *lun, struct se_portal_group *tpg) |
| 432 | { |
| 433 | struct se_node_acl *nacl; |
| 434 | struct se_dev_entry *deve; |
| 435 | u32 i; |
| 436 | |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 437 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 438 | list_for_each_entry(nacl, &tpg->acl_node_list, acl_list) { |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 439 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 440 | |
| 441 | spin_lock_irq(&nacl->device_list_lock); |
| 442 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { |
Jörn Engel | f208324 | 2012-03-15 15:05:40 -0400 | [diff] [blame] | 443 | deve = nacl->device_list[i]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 444 | if (lun != deve->se_lun) |
| 445 | continue; |
| 446 | spin_unlock_irq(&nacl->device_list_lock); |
| 447 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 448 | core_disable_device_list_for_node(lun, NULL, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 449 | deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS, |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 450 | nacl, tpg); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 451 | |
| 452 | spin_lock_irq(&nacl->device_list_lock); |
| 453 | } |
| 454 | spin_unlock_irq(&nacl->device_list_lock); |
| 455 | |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 456 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 457 | } |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 458 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 459 | } |
| 460 | |
| 461 | static struct se_port *core_alloc_port(struct se_device *dev) |
| 462 | { |
| 463 | struct se_port *port, *port_tmp; |
| 464 | |
| 465 | port = kzalloc(sizeof(struct se_port), GFP_KERNEL); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 466 | if (!port) { |
| 467 | pr_err("Unable to allocate struct se_port\n"); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 468 | return ERR_PTR(-ENOMEM); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 469 | } |
| 470 | INIT_LIST_HEAD(&port->sep_alua_list); |
| 471 | INIT_LIST_HEAD(&port->sep_list); |
| 472 | atomic_set(&port->sep_tg_pt_secondary_offline, 0); |
| 473 | spin_lock_init(&port->sep_alua_lock); |
| 474 | mutex_init(&port->sep_tg_pt_md_mutex); |
| 475 | |
| 476 | spin_lock(&dev->se_port_lock); |
| 477 | if (dev->dev_port_count == 0x0000ffff) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 478 | pr_warn("Reached dev->dev_port_count ==" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 479 | " 0x0000ffff\n"); |
| 480 | spin_unlock(&dev->se_port_lock); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 481 | return ERR_PTR(-ENOSPC); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 482 | } |
| 483 | again: |
| 484 | /* |
Masanari Iida | 35d1efe | 2012-08-16 22:43:13 +0900 | [diff] [blame] | 485 | * Allocate the next RELATIVE TARGET PORT IDENTIFIER for this struct se_device |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 486 | * Here is the table from spc4r17 section 7.7.3.8. |
| 487 | * |
| 488 | * Table 473 -- RELATIVE TARGET PORT IDENTIFIER field |
| 489 | * |
| 490 | * Code Description |
| 491 | * 0h Reserved |
| 492 | * 1h Relative port 1, historically known as port A |
| 493 | * 2h Relative port 2, historically known as port B |
| 494 | * 3h to FFFFh Relative port 3 through 65 535 |
| 495 | */ |
| 496 | port->sep_rtpi = dev->dev_rpti_counter++; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 497 | if (!port->sep_rtpi) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 498 | goto again; |
| 499 | |
| 500 | list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) { |
| 501 | /* |
Masanari Iida | 35d1efe | 2012-08-16 22:43:13 +0900 | [diff] [blame] | 502 | * Make sure RELATIVE TARGET PORT IDENTIFIER is unique |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 503 | * for 16-bit wrap.. |
| 504 | */ |
| 505 | if (port->sep_rtpi == port_tmp->sep_rtpi) |
| 506 | goto again; |
| 507 | } |
| 508 | spin_unlock(&dev->se_port_lock); |
| 509 | |
| 510 | return port; |
| 511 | } |
| 512 | |
| 513 | static void core_export_port( |
| 514 | struct se_device *dev, |
| 515 | struct se_portal_group *tpg, |
| 516 | struct se_port *port, |
| 517 | struct se_lun *lun) |
| 518 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 519 | struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem = NULL; |
| 520 | |
| 521 | spin_lock(&dev->se_port_lock); |
| 522 | spin_lock(&lun->lun_sep_lock); |
| 523 | port->sep_tpg = tpg; |
| 524 | port->sep_lun = lun; |
| 525 | lun->lun_sep = port; |
| 526 | spin_unlock(&lun->lun_sep_lock); |
| 527 | |
| 528 | list_add_tail(&port->sep_list, &dev->dev_sep_list); |
| 529 | spin_unlock(&dev->se_port_lock); |
| 530 | |
Andy Grover | a354170 | 2015-05-19 14:44:41 -0700 | [diff] [blame] | 531 | if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) && |
Christoph Hellwig | c87fbd5 | 2012-10-10 17:37:16 -0400 | [diff] [blame] | 532 | !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 533 | tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port); |
| 534 | if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 535 | pr_err("Unable to allocate t10_alua_tg_pt" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 536 | "_gp_member_t\n"); |
| 537 | return; |
| 538 | } |
| 539 | spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); |
| 540 | __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 541 | dev->t10_alua.default_tg_pt_gp); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 542 | spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 543 | pr_debug("%s/%s: Adding to default ALUA Target Port" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 544 | " Group: alua/default_tg_pt_gp\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 545 | dev->transport->name, tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 546 | } |
| 547 | |
| 548 | dev->dev_port_count++; |
Masanari Iida | 35d1efe | 2012-08-16 22:43:13 +0900 | [diff] [blame] | 549 | port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFIER */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | /* |
| 553 | * Called with struct se_device->se_port_lock spinlock held. |
| 554 | */ |
| 555 | 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] | 556 | __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 557 | { |
| 558 | /* |
| 559 | * Wait for any port reference for PR ALL_TG_PT=1 operation |
| 560 | * to complete in __core_scsi3_alloc_registration() |
| 561 | */ |
| 562 | spin_unlock(&dev->se_port_lock); |
| 563 | if (atomic_read(&port->sep_tg_pt_ref_cnt)) |
| 564 | cpu_relax(); |
| 565 | spin_lock(&dev->se_port_lock); |
| 566 | |
| 567 | core_alua_free_tg_pt_gp_mem(port); |
| 568 | |
| 569 | list_del(&port->sep_list); |
| 570 | dev->dev_port_count--; |
| 571 | kfree(port); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 572 | } |
| 573 | |
| 574 | int core_dev_export( |
| 575 | struct se_device *dev, |
| 576 | struct se_portal_group *tpg, |
| 577 | struct se_lun *lun) |
| 578 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 579 | struct se_hba *hba = dev->se_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 580 | struct se_port *port; |
| 581 | |
| 582 | port = core_alloc_port(dev); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 583 | if (IS_ERR(port)) |
| 584 | return PTR_ERR(port); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 585 | |
| 586 | lun->lun_se_dev = dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 587 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 588 | spin_lock(&hba->device_lock); |
| 589 | dev->export_count++; |
| 590 | spin_unlock(&hba->device_lock); |
| 591 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 592 | core_export_port(dev, tpg, port, lun); |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | void core_dev_unexport( |
| 597 | struct se_device *dev, |
| 598 | struct se_portal_group *tpg, |
| 599 | struct se_lun *lun) |
| 600 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 601 | struct se_hba *hba = dev->se_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 602 | struct se_port *port = lun->lun_sep; |
| 603 | |
| 604 | spin_lock(&lun->lun_sep_lock); |
| 605 | if (lun->lun_se_dev == NULL) { |
| 606 | spin_unlock(&lun->lun_sep_lock); |
| 607 | return; |
| 608 | } |
| 609 | spin_unlock(&lun->lun_sep_lock); |
| 610 | |
| 611 | spin_lock(&dev->se_port_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 612 | core_release_port(dev, port); |
| 613 | spin_unlock(&dev->se_port_lock); |
| 614 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 615 | spin_lock(&hba->device_lock); |
| 616 | dev->export_count--; |
| 617 | spin_unlock(&hba->device_lock); |
| 618 | |
Nicholas Bellinger | 83ff42f | 2014-06-16 20:25:54 +0000 | [diff] [blame] | 619 | lun->lun_sep = NULL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 620 | lun->lun_se_dev = NULL; |
| 621 | } |
| 622 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 623 | static void se_release_vpd_for_dev(struct se_device *dev) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 624 | { |
| 625 | struct t10_vpd *vpd, *vpd_tmp; |
| 626 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 627 | spin_lock(&dev->t10_wwn.t10_vpd_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 628 | list_for_each_entry_safe(vpd, vpd_tmp, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 629 | &dev->t10_wwn.t10_vpd_list, vpd_list) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 630 | list_del(&vpd->vpd_list); |
| 631 | kfree(vpd); |
| 632 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 633 | spin_unlock(&dev->t10_wwn.t10_vpd_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 634 | } |
| 635 | |
Roland Dreier | c804537 | 2012-07-16 15:17:12 -0700 | [diff] [blame] | 636 | 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] | 637 | { |
Roland Dreier | 3e03989 | 2012-10-31 09:16:45 -0700 | [diff] [blame] | 638 | u32 aligned_max_sectors; |
| 639 | u32 alignment; |
Nicholas Bellinger | 525a48a | 2011-08-13 02:11:38 -0700 | [diff] [blame] | 640 | /* |
| 641 | * Limit max_sectors to a PAGE_SIZE aligned value for modern |
| 642 | * transport_allocate_data_tasks() operation. |
| 643 | */ |
Roland Dreier | 3e03989 | 2012-10-31 09:16:45 -0700 | [diff] [blame] | 644 | alignment = max(1ul, PAGE_SIZE / block_size); |
| 645 | aligned_max_sectors = rounddown(max_sectors, alignment); |
Nicholas Bellinger | 525a48a | 2011-08-13 02:11:38 -0700 | [diff] [blame] | 646 | |
Roland Dreier | 3e03989 | 2012-10-31 09:16:45 -0700 | [diff] [blame] | 647 | if (max_sectors != aligned_max_sectors) |
| 648 | pr_info("Rounding down aligned max_sectors from %u to %u\n", |
| 649 | max_sectors, aligned_max_sectors); |
| 650 | |
| 651 | return aligned_max_sectors; |
Nicholas Bellinger | 525a48a | 2011-08-13 02:11:38 -0700 | [diff] [blame] | 652 | } |
| 653 | |
Christophe Vu-Brugier | 9bc6548 | 2015-03-19 14:30:13 +0100 | [diff] [blame] | 654 | bool se_dev_check_wce(struct se_device *dev) |
| 655 | { |
| 656 | bool wce = false; |
| 657 | |
| 658 | if (dev->transport->get_write_cache) |
| 659 | wce = dev->transport->get_write_cache(dev); |
| 660 | else if (dev->dev_attrib.emulate_write_cache > 0) |
| 661 | wce = true; |
| 662 | |
| 663 | return wce; |
| 664 | } |
| 665 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 666 | int se_dev_set_max_unmap_lba_count( |
| 667 | struct se_device *dev, |
| 668 | u32 max_unmap_lba_count) |
| 669 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 670 | dev->dev_attrib.max_unmap_lba_count = max_unmap_lba_count; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 671 | pr_debug("dev[%p]: Set max_unmap_lba_count: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 672 | dev, dev->dev_attrib.max_unmap_lba_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 673 | return 0; |
| 674 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 675 | EXPORT_SYMBOL(se_dev_set_max_unmap_lba_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 676 | |
| 677 | int se_dev_set_max_unmap_block_desc_count( |
| 678 | struct se_device *dev, |
| 679 | u32 max_unmap_block_desc_count) |
| 680 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 681 | dev->dev_attrib.max_unmap_block_desc_count = |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 682 | max_unmap_block_desc_count; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 683 | pr_debug("dev[%p]: Set max_unmap_block_desc_count: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 684 | dev, dev->dev_attrib.max_unmap_block_desc_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 685 | return 0; |
| 686 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 687 | EXPORT_SYMBOL(se_dev_set_max_unmap_block_desc_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 688 | |
| 689 | int se_dev_set_unmap_granularity( |
| 690 | struct se_device *dev, |
| 691 | u32 unmap_granularity) |
| 692 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 693 | dev->dev_attrib.unmap_granularity = unmap_granularity; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 694 | pr_debug("dev[%p]: Set unmap_granularity: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 695 | dev, dev->dev_attrib.unmap_granularity); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 696 | return 0; |
| 697 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 698 | EXPORT_SYMBOL(se_dev_set_unmap_granularity); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 699 | |
| 700 | int se_dev_set_unmap_granularity_alignment( |
| 701 | struct se_device *dev, |
| 702 | u32 unmap_granularity_alignment) |
| 703 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 704 | dev->dev_attrib.unmap_granularity_alignment = unmap_granularity_alignment; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 705 | pr_debug("dev[%p]: Set unmap_granularity_alignment: %u\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 706 | dev, dev->dev_attrib.unmap_granularity_alignment); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 707 | return 0; |
| 708 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 709 | EXPORT_SYMBOL(se_dev_set_unmap_granularity_alignment); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 710 | |
Nicholas Bellinger | 773cbaf | 2012-11-15 11:02:49 -0800 | [diff] [blame] | 711 | int se_dev_set_max_write_same_len( |
| 712 | struct se_device *dev, |
| 713 | u32 max_write_same_len) |
| 714 | { |
| 715 | dev->dev_attrib.max_write_same_len = max_write_same_len; |
| 716 | pr_debug("dev[%p]: Set max_write_same_len: %u\n", |
| 717 | dev, dev->dev_attrib.max_write_same_len); |
| 718 | return 0; |
| 719 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 720 | EXPORT_SYMBOL(se_dev_set_max_write_same_len); |
Nicholas Bellinger | 773cbaf | 2012-11-15 11:02:49 -0800 | [diff] [blame] | 721 | |
Tregaron Bayly | adfa957 | 2013-01-31 15:30:24 -0700 | [diff] [blame] | 722 | static void dev_set_t10_wwn_model_alias(struct se_device *dev) |
| 723 | { |
| 724 | const char *configname; |
| 725 | |
| 726 | configname = config_item_name(&dev->dev_group.cg_item); |
| 727 | if (strlen(configname) >= 16) { |
| 728 | pr_warn("dev[%p]: Backstore name '%s' is too long for " |
| 729 | "INQUIRY_MODEL, truncating to 16 bytes\n", dev, |
| 730 | configname); |
| 731 | } |
| 732 | snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); |
| 733 | } |
| 734 | |
| 735 | int se_dev_set_emulate_model_alias(struct se_device *dev, int flag) |
| 736 | { |
| 737 | if (dev->export_count) { |
| 738 | pr_err("dev[%p]: Unable to change model alias" |
| 739 | " while export_count is %d\n", |
| 740 | dev, dev->export_count); |
| 741 | return -EINVAL; |
| 742 | } |
| 743 | |
| 744 | if (flag != 0 && flag != 1) { |
| 745 | pr_err("Illegal value %d\n", flag); |
| 746 | return -EINVAL; |
| 747 | } |
| 748 | |
| 749 | if (flag) { |
| 750 | dev_set_t10_wwn_model_alias(dev); |
| 751 | } else { |
| 752 | strncpy(&dev->t10_wwn.model[0], |
| 753 | dev->transport->inquiry_prod, 16); |
| 754 | } |
| 755 | dev->dev_attrib.emulate_model_alias = flag; |
| 756 | |
| 757 | return 0; |
| 758 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 759 | EXPORT_SYMBOL(se_dev_set_emulate_model_alias); |
Tregaron Bayly | adfa957 | 2013-01-31 15:30:24 -0700 | [diff] [blame] | 760 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 761 | int se_dev_set_emulate_dpo(struct se_device *dev, int flag) |
| 762 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 763 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 764 | pr_err("Illegal value %d\n", flag); |
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 | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 767 | |
Andy Grover | c638830 | 2011-11-30 12:11:50 -0800 | [diff] [blame] | 768 | if (flag) { |
| 769 | pr_err("dpo_emulated not supported\n"); |
| 770 | return -EINVAL; |
| 771 | } |
| 772 | |
| 773 | return 0; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 774 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 775 | EXPORT_SYMBOL(se_dev_set_emulate_dpo); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 776 | |
| 777 | int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) |
| 778 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 779 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 780 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 781 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 782 | } |
Nicholas Bellinger | 4b36b68 | 2015-02-22 22:17:13 -0800 | [diff] [blame] | 783 | if (flag && |
| 784 | dev->transport->get_write_cache) { |
Andy Grover | 86d65dc | 2015-03-31 15:04:37 -0700 | [diff] [blame] | 785 | pr_warn("emulate_fua_write not supported for this device, ignoring\n"); |
| 786 | return 0; |
Nicholas Bellinger | 4b36b68 | 2015-02-22 22:17:13 -0800 | [diff] [blame] | 787 | } |
| 788 | if (dev->export_count) { |
| 789 | pr_err("emulate_fua_write cannot be changed with active" |
| 790 | " exports: %d\n", dev->export_count); |
| 791 | return -EINVAL; |
| 792 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 793 | dev->dev_attrib.emulate_fua_write = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 794 | pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 795 | dev, dev->dev_attrib.emulate_fua_write); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 796 | return 0; |
| 797 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 798 | EXPORT_SYMBOL(se_dev_set_emulate_fua_write); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 799 | |
| 800 | int se_dev_set_emulate_fua_read(struct se_device *dev, int flag) |
| 801 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 802 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 803 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 804 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 805 | } |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 806 | |
Andy Grover | c638830 | 2011-11-30 12:11:50 -0800 | [diff] [blame] | 807 | if (flag) { |
| 808 | pr_err("ua read emulated not supported\n"); |
| 809 | return -EINVAL; |
| 810 | } |
| 811 | |
| 812 | return 0; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 813 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 814 | EXPORT_SYMBOL(se_dev_set_emulate_fua_read); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 815 | |
| 816 | int se_dev_set_emulate_write_cache(struct se_device *dev, int flag) |
| 817 | { |
Christoph Hellwig | f55918f | 2011-10-14 07:30:17 -0400 | [diff] [blame] | 818 | if (flag != 0 && flag != 1) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 819 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 820 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 821 | } |
Nicholas Bellinger | fd30e93 | 2012-08-26 13:35:58 -0700 | [diff] [blame] | 822 | if (flag && |
Andy Grover | 07b8dae3 | 2014-05-14 15:48:06 -0700 | [diff] [blame] | 823 | dev->transport->get_write_cache) { |
| 824 | pr_err("emulate_write_cache not supported for this device\n"); |
| 825 | return -EINVAL; |
Nicholas Bellinger | d0c8b25 | 2013-01-29 22:10:06 -0800 | [diff] [blame] | 826 | } |
Nicholas Bellinger | 4b36b68 | 2015-02-22 22:17:13 -0800 | [diff] [blame] | 827 | if (dev->export_count) { |
| 828 | pr_err("emulate_write_cache cannot be changed with active" |
| 829 | " exports: %d\n", dev->export_count); |
| 830 | return -EINVAL; |
| 831 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 832 | dev->dev_attrib.emulate_write_cache = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 833 | pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 834 | dev, dev->dev_attrib.emulate_write_cache); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 835 | return 0; |
| 836 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 837 | EXPORT_SYMBOL(se_dev_set_emulate_write_cache); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 838 | |
| 839 | int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *dev, int flag) |
| 840 | { |
| 841 | if ((flag != 0) && (flag != 1) && (flag != 2)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 842 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 843 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 844 | } |
| 845 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 846 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 847 | pr_err("dev[%p]: Unable to change SE Device" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 848 | " UA_INTRLCK_CTRL while export_count is %d\n", |
| 849 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 850 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 851 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 852 | dev->dev_attrib.emulate_ua_intlck_ctrl = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 853 | pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 854 | dev, dev->dev_attrib.emulate_ua_intlck_ctrl); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 855 | |
| 856 | return 0; |
| 857 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 858 | EXPORT_SYMBOL(se_dev_set_emulate_ua_intlck_ctrl); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 859 | |
| 860 | int se_dev_set_emulate_tas(struct se_device *dev, int flag) |
| 861 | { |
| 862 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 863 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 864 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 865 | } |
| 866 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 867 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 868 | pr_err("dev[%p]: Unable to change SE Device TAS while" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 869 | " export_count is %d\n", |
| 870 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 871 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 872 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 873 | dev->dev_attrib.emulate_tas = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 874 | pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 875 | dev, (dev->dev_attrib.emulate_tas) ? "Enabled" : "Disabled"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 876 | |
| 877 | return 0; |
| 878 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 879 | EXPORT_SYMBOL(se_dev_set_emulate_tas); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 880 | |
| 881 | int se_dev_set_emulate_tpu(struct se_device *dev, int flag) |
| 882 | { |
| 883 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 884 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 885 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 886 | } |
| 887 | /* |
| 888 | * We expect this value to be non-zero when generic Block Layer |
| 889 | * Discard supported is detected iblock_create_virtdevice(). |
| 890 | */ |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 891 | if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 892 | pr_err("Generic Block Discard not supported\n"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 893 | return -ENOSYS; |
| 894 | } |
| 895 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 896 | dev->dev_attrib.emulate_tpu = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 897 | pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 898 | dev, flag); |
| 899 | return 0; |
| 900 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 901 | EXPORT_SYMBOL(se_dev_set_emulate_tpu); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 902 | |
| 903 | int se_dev_set_emulate_tpws(struct se_device *dev, int flag) |
| 904 | { |
| 905 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 906 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 907 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 908 | } |
| 909 | /* |
| 910 | * We expect this value to be non-zero when generic Block Layer |
| 911 | * Discard supported is detected iblock_create_virtdevice(). |
| 912 | */ |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 913 | if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 914 | pr_err("Generic Block Discard not supported\n"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 915 | return -ENOSYS; |
| 916 | } |
| 917 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 918 | dev->dev_attrib.emulate_tpws = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 919 | pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 920 | dev, flag); |
| 921 | return 0; |
| 922 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 923 | EXPORT_SYMBOL(se_dev_set_emulate_tpws); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 924 | |
Nicholas Bellinger | 0123a9e | 2013-08-20 14:24:09 -0700 | [diff] [blame] | 925 | int se_dev_set_emulate_caw(struct se_device *dev, int flag) |
| 926 | { |
| 927 | if (flag != 0 && flag != 1) { |
| 928 | pr_err("Illegal value %d\n", flag); |
| 929 | return -EINVAL; |
| 930 | } |
| 931 | dev->dev_attrib.emulate_caw = flag; |
| 932 | pr_debug("dev[%p]: SE Device CompareAndWrite (AtomicTestandSet): %d\n", |
| 933 | dev, flag); |
| 934 | |
| 935 | return 0; |
| 936 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 937 | EXPORT_SYMBOL(se_dev_set_emulate_caw); |
Nicholas Bellinger | 0123a9e | 2013-08-20 14:24:09 -0700 | [diff] [blame] | 938 | |
Nicholas Bellinger | d397a44 | 2013-08-22 14:17:20 -0700 | [diff] [blame] | 939 | int se_dev_set_emulate_3pc(struct se_device *dev, int flag) |
| 940 | { |
| 941 | if (flag != 0 && flag != 1) { |
| 942 | pr_err("Illegal value %d\n", flag); |
| 943 | return -EINVAL; |
| 944 | } |
| 945 | dev->dev_attrib.emulate_3pc = flag; |
| 946 | pr_debug("dev[%p]: SE Device 3rd Party Copy (EXTENDED_COPY): %d\n", |
| 947 | dev, flag); |
| 948 | |
| 949 | return 0; |
| 950 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 951 | EXPORT_SYMBOL(se_dev_set_emulate_3pc); |
Nicholas Bellinger | d397a44 | 2013-08-22 14:17:20 -0700 | [diff] [blame] | 952 | |
Nicholas Bellinger | 2ed22c9 | 2014-01-08 18:19:31 +0000 | [diff] [blame] | 953 | int se_dev_set_pi_prot_type(struct se_device *dev, int flag) |
| 954 | { |
| 955 | int rc, old_prot = dev->dev_attrib.pi_prot_type; |
| 956 | |
| 957 | if (flag != 0 && flag != 1 && flag != 2 && flag != 3) { |
| 958 | pr_err("Illegal value %d for pi_prot_type\n", flag); |
| 959 | return -EINVAL; |
| 960 | } |
| 961 | if (flag == 2) { |
| 962 | pr_err("DIF TYPE2 protection currently not supported\n"); |
| 963 | return -ENOSYS; |
| 964 | } |
| 965 | if (dev->dev_attrib.hw_pi_prot_type) { |
| 966 | pr_warn("DIF protection enabled on underlying hardware," |
| 967 | " ignoring\n"); |
| 968 | return 0; |
| 969 | } |
| 970 | if (!dev->transport->init_prot || !dev->transport->free_prot) { |
Andy Grover | 448ba90 | 2014-04-15 14:13:12 -0700 | [diff] [blame] | 971 | /* 0 is only allowed value for non-supporting backends */ |
| 972 | if (flag == 0) |
| 973 | return 0; |
| 974 | |
Nicholas Bellinger | 2ed22c9 | 2014-01-08 18:19:31 +0000 | [diff] [blame] | 975 | pr_err("DIF protection not supported by backend: %s\n", |
| 976 | dev->transport->name); |
| 977 | return -ENOSYS; |
| 978 | } |
| 979 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
| 980 | pr_err("DIF protection requires device to be configured\n"); |
| 981 | return -ENODEV; |
| 982 | } |
| 983 | if (dev->export_count) { |
| 984 | pr_err("dev[%p]: Unable to change SE Device PROT type while" |
| 985 | " export_count is %d\n", dev, dev->export_count); |
| 986 | return -EINVAL; |
| 987 | } |
| 988 | |
| 989 | dev->dev_attrib.pi_prot_type = flag; |
| 990 | |
| 991 | if (flag && !old_prot) { |
| 992 | rc = dev->transport->init_prot(dev); |
| 993 | if (rc) { |
| 994 | dev->dev_attrib.pi_prot_type = old_prot; |
| 995 | return rc; |
| 996 | } |
| 997 | |
| 998 | } else if (!flag && old_prot) { |
| 999 | dev->transport->free_prot(dev); |
| 1000 | } |
| 1001 | pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag); |
| 1002 | |
| 1003 | return 0; |
| 1004 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1005 | EXPORT_SYMBOL(se_dev_set_pi_prot_type); |
Nicholas Bellinger | 2ed22c9 | 2014-01-08 18:19:31 +0000 | [diff] [blame] | 1006 | |
| 1007 | int se_dev_set_pi_prot_format(struct se_device *dev, int flag) |
| 1008 | { |
| 1009 | int rc; |
| 1010 | |
| 1011 | if (!flag) |
| 1012 | return 0; |
| 1013 | |
| 1014 | if (flag != 1) { |
| 1015 | pr_err("Illegal value %d for pi_prot_format\n", flag); |
| 1016 | return -EINVAL; |
| 1017 | } |
| 1018 | if (!dev->transport->format_prot) { |
| 1019 | pr_err("DIF protection format not supported by backend %s\n", |
| 1020 | dev->transport->name); |
| 1021 | return -ENOSYS; |
| 1022 | } |
| 1023 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
| 1024 | pr_err("DIF protection format requires device to be configured\n"); |
| 1025 | return -ENODEV; |
| 1026 | } |
| 1027 | if (dev->export_count) { |
| 1028 | pr_err("dev[%p]: Unable to format SE Device PROT type while" |
| 1029 | " export_count is %d\n", dev, dev->export_count); |
| 1030 | return -EINVAL; |
| 1031 | } |
| 1032 | |
| 1033 | rc = dev->transport->format_prot(dev); |
| 1034 | if (rc) |
| 1035 | return rc; |
| 1036 | |
| 1037 | pr_debug("dev[%p]: SE Device Protection Format complete\n", dev); |
| 1038 | |
| 1039 | return 0; |
| 1040 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1041 | EXPORT_SYMBOL(se_dev_set_pi_prot_format); |
Nicholas Bellinger | 2ed22c9 | 2014-01-08 18:19:31 +0000 | [diff] [blame] | 1042 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1043 | int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag) |
| 1044 | { |
| 1045 | if ((flag != 0) && (flag != 1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1046 | pr_err("Illegal value %d\n", flag); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1047 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1048 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1049 | dev->dev_attrib.enforce_pr_isids = flag; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1050 | 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] | 1051 | (dev->dev_attrib.enforce_pr_isids) ? "Enabled" : "Disabled"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1052 | return 0; |
| 1053 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1054 | EXPORT_SYMBOL(se_dev_set_enforce_pr_isids); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1055 | |
Nicholas Bellinger | 92404e6 | 2014-10-04 01:06:08 +0000 | [diff] [blame] | 1056 | int se_dev_set_force_pr_aptpl(struct se_device *dev, int flag) |
| 1057 | { |
| 1058 | if ((flag != 0) && (flag != 1)) { |
| 1059 | printk(KERN_ERR "Illegal value %d\n", flag); |
| 1060 | return -EINVAL; |
| 1061 | } |
| 1062 | if (dev->export_count) { |
| 1063 | pr_err("dev[%p]: Unable to set force_pr_aptpl while" |
| 1064 | " export_count is %d\n", dev, dev->export_count); |
| 1065 | return -EINVAL; |
| 1066 | } |
| 1067 | |
| 1068 | dev->dev_attrib.force_pr_aptpl = flag; |
| 1069 | pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", dev, flag); |
| 1070 | return 0; |
| 1071 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1072 | EXPORT_SYMBOL(se_dev_set_force_pr_aptpl); |
Nicholas Bellinger | 92404e6 | 2014-10-04 01:06:08 +0000 | [diff] [blame] | 1073 | |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 1074 | int se_dev_set_is_nonrot(struct se_device *dev, int flag) |
| 1075 | { |
| 1076 | if ((flag != 0) && (flag != 1)) { |
| 1077 | printk(KERN_ERR "Illegal value %d\n", flag); |
| 1078 | return -EINVAL; |
| 1079 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1080 | dev->dev_attrib.is_nonrot = flag; |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 1081 | pr_debug("dev[%p]: SE Device is_nonrot bit: %d\n", |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 1082 | dev, flag); |
| 1083 | return 0; |
| 1084 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1085 | EXPORT_SYMBOL(se_dev_set_is_nonrot); |
Roland Dreier | e22a7f0 | 2011-07-05 13:34:52 -0700 | [diff] [blame] | 1086 | |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 1087 | int se_dev_set_emulate_rest_reord(struct se_device *dev, int flag) |
| 1088 | { |
| 1089 | if (flag != 0) { |
| 1090 | printk(KERN_ERR "dev[%p]: SE Device emulatation of restricted" |
| 1091 | " reordering not implemented\n", dev); |
| 1092 | return -ENOSYS; |
| 1093 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1094 | dev->dev_attrib.emulate_rest_reord = flag; |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 1095 | pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", dev, flag); |
| 1096 | return 0; |
| 1097 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1098 | EXPORT_SYMBOL(se_dev_set_emulate_rest_reord); |
Nicholas Bellinger | 5de619a | 2011-07-17 02:57:58 -0700 | [diff] [blame] | 1099 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1100 | /* |
| 1101 | * Note, this can only be called on unexported SE Device Object. |
| 1102 | */ |
| 1103 | int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth) |
| 1104 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1105 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1106 | pr_err("dev[%p]: Unable to change SE Device TCQ while" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1107 | " export_count is %d\n", |
| 1108 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1109 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1110 | } |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1111 | if (!queue_depth) { |
| 1112 | pr_err("dev[%p]: Illegal ZERO value for queue" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1113 | "_depth\n", dev); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1114 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1115 | } |
| 1116 | |
Nicholas Bellinger | 4b2f57e | 2014-11-28 05:39:12 +0000 | [diff] [blame] | 1117 | if (queue_depth > dev->dev_attrib.queue_depth) { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1118 | if (queue_depth > dev->dev_attrib.hw_queue_depth) { |
Nicholas Bellinger | 4b2f57e | 2014-11-28 05:39:12 +0000 | [diff] [blame] | 1119 | pr_err("dev[%p]: Passed queue_depth:" |
| 1120 | " %u exceeds TCM/SE_Device MAX" |
| 1121 | " TCQ: %u\n", dev, queue_depth, |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1122 | dev->dev_attrib.hw_queue_depth); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1123 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1124 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1125 | } |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1126 | dev->dev_attrib.queue_depth = dev->queue_depth = queue_depth; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1127 | pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1128 | dev, queue_depth); |
| 1129 | return 0; |
| 1130 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1131 | EXPORT_SYMBOL(se_dev_set_queue_depth); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1132 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1133 | int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors) |
| 1134 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1135 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1136 | pr_err("dev[%p]: Unable to change SE Device" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1137 | " optimal_sectors while export_count is %d\n", |
| 1138 | dev, dev->export_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1139 | return -EINVAL; |
| 1140 | } |
Nicholas Bellinger | 046ba64 | 2015-01-06 16:10:37 -0800 | [diff] [blame] | 1141 | if (optimal_sectors > dev->dev_attrib.hw_max_sectors) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1142 | pr_err("dev[%p]: Passed optimal_sectors %u cannot be" |
Nicholas Bellinger | 046ba64 | 2015-01-06 16:10:37 -0800 | [diff] [blame] | 1143 | " greater than hw_max_sectors: %u\n", dev, |
| 1144 | optimal_sectors, dev->dev_attrib.hw_max_sectors); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1145 | return -EINVAL; |
| 1146 | } |
| 1147 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1148 | dev->dev_attrib.optimal_sectors = optimal_sectors; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1149 | pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1150 | dev, optimal_sectors); |
| 1151 | return 0; |
| 1152 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1153 | EXPORT_SYMBOL(se_dev_set_optimal_sectors); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1154 | |
| 1155 | int se_dev_set_block_size(struct se_device *dev, u32 block_size) |
| 1156 | { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1157 | if (dev->export_count) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1158 | pr_err("dev[%p]: Unable to change SE Device block_size" |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1159 | " while export_count is %d\n", |
| 1160 | dev, dev->export_count); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1161 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1162 | } |
| 1163 | |
| 1164 | if ((block_size != 512) && |
| 1165 | (block_size != 1024) && |
| 1166 | (block_size != 2048) && |
| 1167 | (block_size != 4096)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1168 | pr_err("dev[%p]: Illegal value for block_device: %u" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1169 | " for SE device, must be 512, 1024, 2048 or 4096\n", |
| 1170 | dev, block_size); |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1171 | return -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1172 | } |
| 1173 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1174 | dev->dev_attrib.block_size = block_size; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1175 | pr_debug("dev[%p]: SE Device block_size changed to %u\n", |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1176 | dev, block_size); |
Nicholas Bellinger | 95cadac | 2013-12-12 12:24:11 -0800 | [diff] [blame] | 1177 | |
| 1178 | if (dev->dev_attrib.max_bytes_per_io) |
| 1179 | dev->dev_attrib.hw_max_sectors = |
| 1180 | dev->dev_attrib.max_bytes_per_io / block_size; |
| 1181 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1182 | return 0; |
| 1183 | } |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 1184 | EXPORT_SYMBOL(se_dev_set_block_size); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1185 | |
| 1186 | struct se_lun *core_dev_add_lun( |
| 1187 | struct se_portal_group *tpg, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1188 | struct se_device *dev, |
Andy Grover | 2af7973 | 2013-11-26 11:55:22 -0800 | [diff] [blame] | 1189 | u32 unpacked_lun) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1190 | { |
Andy Grover | 2af7973 | 2013-11-26 11:55:22 -0800 | [diff] [blame] | 1191 | struct se_lun *lun; |
Sebastian Andrzej Siewior | 8d9efe5 | 2012-01-11 21:43:38 +0100 | [diff] [blame] | 1192 | int rc; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1193 | |
Andy Grover | d344f8a | 2013-11-26 12:07:54 -0800 | [diff] [blame] | 1194 | lun = core_tpg_alloc_lun(tpg, unpacked_lun); |
Andy Grover | 2af7973 | 2013-11-26 11:55:22 -0800 | [diff] [blame] | 1195 | if (IS_ERR(lun)) |
| 1196 | return lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1197 | |
Andy Grover | d344f8a | 2013-11-26 12:07:54 -0800 | [diff] [blame] | 1198 | rc = core_tpg_add_lun(tpg, lun, |
Nicholas Bellinger | 58d9261 | 2012-03-20 21:26:48 -0700 | [diff] [blame] | 1199 | TRANSPORT_LUNFLAGS_READ_WRITE, dev); |
Sebastian Andrzej Siewior | 8d9efe5 | 2012-01-11 21:43:38 +0100 | [diff] [blame] | 1200 | if (rc < 0) |
| 1201 | return ERR_PTR(rc); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1202 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1203 | pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from" |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1204 | " CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(), |
Andy Grover | 2af7973 | 2013-11-26 11:55:22 -0800 | [diff] [blame] | 1205 | tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, |
Andy Grover | 2dca673 | 2012-07-12 17:34:55 -0700 | [diff] [blame] | 1206 | tpg->se_tpg_tfo->get_fabric_name(), dev->se_hba->hba_id); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1207 | /* |
| 1208 | * Update LUN maps for dynamically added initiators when |
| 1209 | * generate_node_acl is enabled. |
| 1210 | */ |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1211 | if (tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1212 | struct se_node_acl *acl; |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1213 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1214 | list_for_each_entry(acl, &tpg->acl_node_list, acl_list) { |
Nicholas Bellinger | 052605c | 2011-07-26 17:48:43 -0700 | [diff] [blame] | 1215 | if (acl->dynamic_node_acl && |
| 1216 | (!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only || |
| 1217 | !tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg))) { |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1218 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1219 | core_tpg_add_node_to_devs(acl, tpg); |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1220 | spin_lock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1221 | } |
| 1222 | } |
Roland Dreier | 2863888 | 2011-08-16 09:40:01 -0700 | [diff] [blame] | 1223 | spin_unlock_irq(&tpg->acl_node_lock); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1224 | } |
| 1225 | |
Andy Grover | 2af7973 | 2013-11-26 11:55:22 -0800 | [diff] [blame] | 1226 | return lun; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1227 | } |
| 1228 | |
| 1229 | /* core_dev_del_lun(): |
| 1230 | * |
| 1231 | * |
| 1232 | */ |
Andy Grover | cd9d7cb | 2014-06-30 16:39:44 -0700 | [diff] [blame] | 1233 | void core_dev_del_lun( |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1234 | struct se_portal_group *tpg, |
Andy Grover | cd9d7cb | 2014-06-30 16:39:44 -0700 | [diff] [blame] | 1235 | struct se_lun *lun) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1236 | { |
Andy Grover | cd9d7cb | 2014-06-30 16:39:44 -0700 | [diff] [blame] | 1237 | pr_debug("%s_TPG[%u]_LUN[%u] - Deactivating %s Logical Unit from" |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1238 | " device object\n", tpg->se_tpg_tfo->get_fabric_name(), |
Andy Grover | cd9d7cb | 2014-06-30 16:39:44 -0700 | [diff] [blame] | 1239 | tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1240 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1241 | |
Andy Grover | cd9d7cb | 2014-06-30 16:39:44 -0700 | [diff] [blame] | 1242 | core_tpg_remove_lun(tpg, lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1243 | } |
| 1244 | |
| 1245 | struct se_lun *core_get_lun_from_tpg(struct se_portal_group *tpg, u32 unpacked_lun) |
| 1246 | { |
| 1247 | struct se_lun *lun; |
| 1248 | |
| 1249 | spin_lock(&tpg->tpg_lun_lock); |
| 1250 | if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1251 | pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1252 | "_PER_TPG-1: %u for Target Portal Group: %hu\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1253 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1254 | TRANSPORT_MAX_LUNS_PER_TPG-1, |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1255 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1256 | spin_unlock(&tpg->tpg_lun_lock); |
| 1257 | return NULL; |
| 1258 | } |
Jörn Engel | 4a5a75f | 2012-03-15 15:05:12 -0400 | [diff] [blame] | 1259 | lun = tpg->tpg_lun_list[unpacked_lun]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1260 | |
| 1261 | if (lun->lun_status != TRANSPORT_LUN_STATUS_FREE) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1262 | pr_err("%s Logical Unit Number: %u is not free on" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1263 | " Target Portal Group: %hu, ignoring request.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1264 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
| 1265 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1266 | spin_unlock(&tpg->tpg_lun_lock); |
| 1267 | return NULL; |
| 1268 | } |
| 1269 | spin_unlock(&tpg->tpg_lun_lock); |
| 1270 | |
| 1271 | return lun; |
| 1272 | } |
| 1273 | |
| 1274 | /* core_dev_get_lun(): |
| 1275 | * |
| 1276 | * |
| 1277 | */ |
| 1278 | static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked_lun) |
| 1279 | { |
| 1280 | struct se_lun *lun; |
| 1281 | |
| 1282 | spin_lock(&tpg->tpg_lun_lock); |
| 1283 | if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1284 | pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1285 | "_TPG-1: %u for Target Portal Group: %hu\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1286 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1287 | TRANSPORT_MAX_LUNS_PER_TPG-1, |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1288 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1289 | spin_unlock(&tpg->tpg_lun_lock); |
| 1290 | return NULL; |
| 1291 | } |
Jörn Engel | 4a5a75f | 2012-03-15 15:05:12 -0400 | [diff] [blame] | 1292 | lun = tpg->tpg_lun_list[unpacked_lun]; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1293 | |
| 1294 | if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1295 | pr_err("%s Logical Unit Number: %u is not active on" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1296 | " Target Portal Group: %hu, ignoring request.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1297 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
| 1298 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1299 | spin_unlock(&tpg->tpg_lun_lock); |
| 1300 | return NULL; |
| 1301 | } |
| 1302 | spin_unlock(&tpg->tpg_lun_lock); |
| 1303 | |
| 1304 | return lun; |
| 1305 | } |
| 1306 | |
| 1307 | struct se_lun_acl *core_dev_init_initiator_node_lun_acl( |
| 1308 | struct se_portal_group *tpg, |
Nicholas Bellinger | fcf2948 | 2013-02-18 18:00:33 -0800 | [diff] [blame] | 1309 | struct se_node_acl *nacl, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1310 | u32 mapped_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1311 | int *ret) |
| 1312 | { |
| 1313 | struct se_lun_acl *lacl; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1314 | |
Nicholas Bellinger | fcf2948 | 2013-02-18 18:00:33 -0800 | [diff] [blame] | 1315 | if (strlen(nacl->initiatorname) >= TRANSPORT_IQN_LEN) { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1316 | pr_err("%s InitiatorName exceeds maximum size.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1317 | tpg->se_tpg_tfo->get_fabric_name()); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1318 | *ret = -EOVERFLOW; |
| 1319 | return NULL; |
| 1320 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1321 | lacl = kzalloc(sizeof(struct se_lun_acl), GFP_KERNEL); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1322 | if (!lacl) { |
| 1323 | pr_err("Unable to allocate memory for struct se_lun_acl.\n"); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1324 | *ret = -ENOMEM; |
| 1325 | return NULL; |
| 1326 | } |
| 1327 | |
| 1328 | INIT_LIST_HEAD(&lacl->lacl_list); |
| 1329 | lacl->mapped_lun = mapped_lun; |
| 1330 | lacl->se_lun_nacl = nacl; |
Nicholas Bellinger | fcf2948 | 2013-02-18 18:00:33 -0800 | [diff] [blame] | 1331 | snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", |
| 1332 | nacl->initiatorname); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1333 | |
| 1334 | return lacl; |
| 1335 | } |
| 1336 | |
| 1337 | int core_dev_add_initiator_node_lun_acl( |
| 1338 | struct se_portal_group *tpg, |
| 1339 | struct se_lun_acl *lacl, |
| 1340 | u32 unpacked_lun, |
| 1341 | u32 lun_access) |
| 1342 | { |
| 1343 | struct se_lun *lun; |
| 1344 | struct se_node_acl *nacl; |
| 1345 | |
| 1346 | lun = core_dev_get_lun(tpg, unpacked_lun); |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1347 | if (!lun) { |
| 1348 | pr_err("%s Logical Unit Number: %u is not active on" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1349 | " Target Portal Group: %hu, ignoring request.\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1350 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
| 1351 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1352 | return -EINVAL; |
| 1353 | } |
| 1354 | |
| 1355 | nacl = lacl->se_lun_nacl; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1356 | if (!nacl) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1357 | return -EINVAL; |
| 1358 | |
| 1359 | if ((lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) && |
| 1360 | (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE)) |
| 1361 | lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; |
| 1362 | |
| 1363 | lacl->se_lun = lun; |
| 1364 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 1365 | if (core_enable_device_list_for_node(lun, lacl, lacl->mapped_lun, |
| 1366 | lun_access, nacl, tpg) < 0) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1367 | return -EINVAL; |
| 1368 | |
| 1369 | spin_lock(&lun->lun_acl_lock); |
| 1370 | list_add_tail(&lacl->lacl_list, &lun->lun_acl_list); |
Joern Engel | 33940d0 | 2014-09-16 16:23:12 -0400 | [diff] [blame] | 1371 | atomic_inc_mb(&lun->lun_acl_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1372 | spin_unlock(&lun->lun_acl_lock); |
| 1373 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1374 | pr_debug("%s_TPG[%hu]_LUN[%u->%u] - Added %s ACL for " |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1375 | " InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(), |
| 1376 | 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] | 1377 | (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO", |
| 1378 | lacl->initiatorname); |
| 1379 | /* |
| 1380 | * Check to see if there are any existing persistent reservation APTPL |
| 1381 | * pre-registrations that need to be enabled for this LUN ACL.. |
| 1382 | */ |
Nicholas Bellinger | e248056 | 2014-10-04 04:23:15 +0000 | [diff] [blame] | 1383 | core_scsi3_check_aptpl_registration(lun->lun_se_dev, tpg, lun, nacl, |
| 1384 | lacl->mapped_lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1385 | return 0; |
| 1386 | } |
| 1387 | |
| 1388 | /* core_dev_del_initiator_node_lun_acl(): |
| 1389 | * |
| 1390 | * |
| 1391 | */ |
| 1392 | int core_dev_del_initiator_node_lun_acl( |
| 1393 | struct se_portal_group *tpg, |
| 1394 | struct se_lun *lun, |
| 1395 | struct se_lun_acl *lacl) |
| 1396 | { |
| 1397 | struct se_node_acl *nacl; |
| 1398 | |
| 1399 | nacl = lacl->se_lun_nacl; |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1400 | if (!nacl) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1401 | return -EINVAL; |
| 1402 | |
| 1403 | spin_lock(&lun->lun_acl_lock); |
| 1404 | list_del(&lacl->lacl_list); |
Joern Engel | 33940d0 | 2014-09-16 16:23:12 -0400 | [diff] [blame] | 1405 | atomic_dec_mb(&lun->lun_acl_count); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1406 | spin_unlock(&lun->lun_acl_lock); |
| 1407 | |
Andy Grover | e80ac6c | 2012-07-12 17:34:58 -0700 | [diff] [blame] | 1408 | core_disable_device_list_for_node(lun, NULL, lacl->mapped_lun, |
| 1409 | TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1410 | |
| 1411 | lacl->se_lun = NULL; |
| 1412 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1413 | pr_debug("%s_TPG[%hu]_LUN[%u] - Removed ACL for" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1414 | " InitiatorNode: %s Mapped LUN: %u\n", |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1415 | tpg->se_tpg_tfo->get_fabric_name(), |
| 1416 | tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1417 | lacl->initiatorname, lacl->mapped_lun); |
| 1418 | |
| 1419 | return 0; |
| 1420 | } |
| 1421 | |
| 1422 | void core_dev_free_initiator_node_lun_acl( |
| 1423 | struct se_portal_group *tpg, |
| 1424 | struct se_lun_acl *lacl) |
| 1425 | { |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1426 | pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s" |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1427 | " Mapped LUN: %u\n", tpg->se_tpg_tfo->get_fabric_name(), |
| 1428 | tpg->se_tpg_tfo->tpg_get_tag(tpg), |
| 1429 | tpg->se_tpg_tfo->get_fabric_name(), |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1430 | lacl->initiatorname, lacl->mapped_lun); |
| 1431 | |
| 1432 | kfree(lacl); |
| 1433 | } |
| 1434 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1435 | static void scsi_dump_inquiry(struct se_device *dev) |
| 1436 | { |
| 1437 | struct t10_wwn *wwn = &dev->t10_wwn; |
| 1438 | char buf[17]; |
| 1439 | int i, device_type; |
| 1440 | /* |
| 1441 | * Print Linux/SCSI style INQUIRY formatting to the kernel ring buffer |
| 1442 | */ |
| 1443 | for (i = 0; i < 8; i++) |
| 1444 | if (wwn->vendor[i] >= 0x20) |
| 1445 | buf[i] = wwn->vendor[i]; |
| 1446 | else |
| 1447 | buf[i] = ' '; |
| 1448 | buf[i] = '\0'; |
| 1449 | pr_debug(" Vendor: %s\n", buf); |
| 1450 | |
| 1451 | for (i = 0; i < 16; i++) |
| 1452 | if (wwn->model[i] >= 0x20) |
| 1453 | buf[i] = wwn->model[i]; |
| 1454 | else |
| 1455 | buf[i] = ' '; |
| 1456 | buf[i] = '\0'; |
| 1457 | pr_debug(" Model: %s\n", buf); |
| 1458 | |
| 1459 | for (i = 0; i < 4; i++) |
| 1460 | if (wwn->revision[i] >= 0x20) |
| 1461 | buf[i] = wwn->revision[i]; |
| 1462 | else |
| 1463 | buf[i] = ' '; |
| 1464 | buf[i] = '\0'; |
| 1465 | pr_debug(" Revision: %s\n", buf); |
| 1466 | |
| 1467 | device_type = dev->transport->get_device_type(dev); |
| 1468 | pr_debug(" Type: %s ", scsi_device_type(device_type)); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1469 | } |
| 1470 | |
| 1471 | struct se_device *target_alloc_device(struct se_hba *hba, const char *name) |
| 1472 | { |
| 1473 | struct se_device *dev; |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 1474 | struct se_lun *xcopy_lun; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1475 | |
| 1476 | dev = hba->transport->alloc_device(hba, name); |
| 1477 | if (!dev) |
| 1478 | return NULL; |
| 1479 | |
Nicholas Bellinger | 0ff8754 | 2012-12-04 23:43:57 -0800 | [diff] [blame] | 1480 | dev->dev_link_magic = SE_DEV_LINK_MAGIC; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1481 | dev->se_hba = hba; |
| 1482 | dev->transport = hba->transport; |
Nicholas Bellinger | 2ed22c9 | 2014-01-08 18:19:31 +0000 | [diff] [blame] | 1483 | dev->prot_length = sizeof(struct se_dif_v1_tuple); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1484 | |
| 1485 | INIT_LIST_HEAD(&dev->dev_list); |
| 1486 | INIT_LIST_HEAD(&dev->dev_sep_list); |
| 1487 | INIT_LIST_HEAD(&dev->dev_tmr_list); |
| 1488 | INIT_LIST_HEAD(&dev->delayed_cmd_list); |
| 1489 | INIT_LIST_HEAD(&dev->state_list); |
| 1490 | INIT_LIST_HEAD(&dev->qf_cmd_list); |
Nicholas Bellinger | d9ea32b | 2013-08-22 11:33:37 -0700 | [diff] [blame] | 1491 | INIT_LIST_HEAD(&dev->g_dev_node); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1492 | spin_lock_init(&dev->execute_task_lock); |
| 1493 | spin_lock_init(&dev->delayed_cmd_lock); |
| 1494 | spin_lock_init(&dev->dev_reservation_lock); |
| 1495 | spin_lock_init(&dev->se_port_lock); |
| 1496 | spin_lock_init(&dev->se_tmr_lock); |
| 1497 | spin_lock_init(&dev->qf_cmd_lock); |
Nicholas Bellinger | 68ff9b9 | 2013-08-19 15:20:28 -0700 | [diff] [blame] | 1498 | sema_init(&dev->caw_sem, 1); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1499 | atomic_set(&dev->dev_ordered_id, 0); |
| 1500 | INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list); |
| 1501 | spin_lock_init(&dev->t10_wwn.t10_vpd_lock); |
| 1502 | INIT_LIST_HEAD(&dev->t10_pr.registration_list); |
| 1503 | INIT_LIST_HEAD(&dev->t10_pr.aptpl_reg_list); |
| 1504 | spin_lock_init(&dev->t10_pr.registration_lock); |
| 1505 | spin_lock_init(&dev->t10_pr.aptpl_reg_lock); |
| 1506 | INIT_LIST_HEAD(&dev->t10_alua.tg_pt_gps_list); |
| 1507 | spin_lock_init(&dev->t10_alua.tg_pt_gps_lock); |
Hannes Reinecke | c66094b | 2013-12-17 09:18:49 +0100 | [diff] [blame] | 1508 | INIT_LIST_HEAD(&dev->t10_alua.lba_map_list); |
| 1509 | spin_lock_init(&dev->t10_alua.lba_map_lock); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1510 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1511 | dev->t10_wwn.t10_dev = dev; |
| 1512 | dev->t10_alua.t10_dev = dev; |
| 1513 | |
| 1514 | dev->dev_attrib.da_dev = dev; |
Tregaron Bayly | adfa957 | 2013-01-31 15:30:24 -0700 | [diff] [blame] | 1515 | dev->dev_attrib.emulate_model_alias = DA_EMULATE_MODEL_ALIAS; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1516 | dev->dev_attrib.emulate_dpo = DA_EMULATE_DPO; |
| 1517 | dev->dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE; |
| 1518 | dev->dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ; |
| 1519 | dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE; |
| 1520 | dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL; |
| 1521 | dev->dev_attrib.emulate_tas = DA_EMULATE_TAS; |
| 1522 | dev->dev_attrib.emulate_tpu = DA_EMULATE_TPU; |
| 1523 | dev->dev_attrib.emulate_tpws = DA_EMULATE_TPWS; |
Nicholas Bellinger | 0123a9e | 2013-08-20 14:24:09 -0700 | [diff] [blame] | 1524 | dev->dev_attrib.emulate_caw = DA_EMULATE_CAW; |
Nicholas Bellinger | d397a44 | 2013-08-22 14:17:20 -0700 | [diff] [blame] | 1525 | dev->dev_attrib.emulate_3pc = DA_EMULATE_3PC; |
Nicholas Bellinger | 2ed22c9 | 2014-01-08 18:19:31 +0000 | [diff] [blame] | 1526 | dev->dev_attrib.pi_prot_type = TARGET_DIF_TYPE0_PROT; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1527 | dev->dev_attrib.enforce_pr_isids = DA_ENFORCE_PR_ISIDS; |
Nicholas Bellinger | 92404e6 | 2014-10-04 01:06:08 +0000 | [diff] [blame] | 1528 | dev->dev_attrib.force_pr_aptpl = DA_FORCE_PR_APTPL; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1529 | dev->dev_attrib.is_nonrot = DA_IS_NONROT; |
| 1530 | dev->dev_attrib.emulate_rest_reord = DA_EMULATE_REST_REORD; |
| 1531 | dev->dev_attrib.max_unmap_lba_count = DA_MAX_UNMAP_LBA_COUNT; |
| 1532 | dev->dev_attrib.max_unmap_block_desc_count = |
| 1533 | DA_MAX_UNMAP_BLOCK_DESC_COUNT; |
| 1534 | dev->dev_attrib.unmap_granularity = DA_UNMAP_GRANULARITY_DEFAULT; |
| 1535 | dev->dev_attrib.unmap_granularity_alignment = |
| 1536 | DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT; |
Nicholas Bellinger | 773cbaf | 2012-11-15 11:02:49 -0800 | [diff] [blame] | 1537 | dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1538 | |
Nicholas Bellinger | 4863e52 | 2013-11-08 13:10:44 -0800 | [diff] [blame] | 1539 | xcopy_lun = &dev->xcopy_lun; |
| 1540 | xcopy_lun->lun_se_dev = dev; |
| 1541 | init_completion(&xcopy_lun->lun_shutdown_comp); |
| 1542 | INIT_LIST_HEAD(&xcopy_lun->lun_acl_list); |
| 1543 | spin_lock_init(&xcopy_lun->lun_acl_lock); |
| 1544 | spin_lock_init(&xcopy_lun->lun_sep_lock); |
| 1545 | init_completion(&xcopy_lun->lun_ref_comp); |
| 1546 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1547 | return dev; |
| 1548 | } |
| 1549 | |
| 1550 | int target_configure_device(struct se_device *dev) |
| 1551 | { |
| 1552 | struct se_hba *hba = dev->se_hba; |
| 1553 | int ret; |
| 1554 | |
| 1555 | if (dev->dev_flags & DF_CONFIGURED) { |
| 1556 | pr_err("se_dev->se_dev_ptr already set for storage" |
| 1557 | " object\n"); |
| 1558 | return -EEXIST; |
| 1559 | } |
| 1560 | |
| 1561 | ret = dev->transport->configure_device(dev); |
| 1562 | if (ret) |
| 1563 | goto out; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1564 | /* |
| 1565 | * XXX: there is not much point to have two different values here.. |
| 1566 | */ |
| 1567 | dev->dev_attrib.block_size = dev->dev_attrib.hw_block_size; |
| 1568 | dev->dev_attrib.queue_depth = dev->dev_attrib.hw_queue_depth; |
| 1569 | |
| 1570 | /* |
| 1571 | * Align max_hw_sectors down to PAGE_SIZE I/O transfers |
| 1572 | */ |
| 1573 | dev->dev_attrib.hw_max_sectors = |
| 1574 | se_dev_align_max_sectors(dev->dev_attrib.hw_max_sectors, |
| 1575 | dev->dev_attrib.hw_block_size); |
Nicholas Bellinger | 046ba64 | 2015-01-06 16:10:37 -0800 | [diff] [blame] | 1576 | dev->dev_attrib.optimal_sectors = dev->dev_attrib.hw_max_sectors; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1577 | |
| 1578 | dev->dev_index = scsi_get_new_index(SCSI_DEVICE_INDEX); |
| 1579 | dev->creation_time = get_jiffies_64(); |
| 1580 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1581 | ret = core_setup_alua(dev); |
| 1582 | if (ret) |
| 1583 | goto out; |
| 1584 | |
| 1585 | /* |
| 1586 | * Startup the struct se_device processing thread |
| 1587 | */ |
| 1588 | dev->tmr_wq = alloc_workqueue("tmr-%s", WQ_MEM_RECLAIM | WQ_UNBOUND, 1, |
| 1589 | dev->transport->name); |
| 1590 | if (!dev->tmr_wq) { |
| 1591 | pr_err("Unable to create tmr workqueue for %s\n", |
| 1592 | dev->transport->name); |
| 1593 | ret = -ENOMEM; |
| 1594 | goto out_free_alua; |
| 1595 | } |
| 1596 | |
| 1597 | /* |
| 1598 | * Setup work_queue for QUEUE_FULL |
| 1599 | */ |
| 1600 | INIT_WORK(&dev->qf_work_queue, target_qf_do_work); |
| 1601 | |
| 1602 | /* |
| 1603 | * Preload the initial INQUIRY const values if we are doing |
| 1604 | * anything virtual (IBLOCK, FILEIO, RAMDISK), but not for TCM/pSCSI |
| 1605 | * passthrough because this is being provided by the backend LLD. |
| 1606 | */ |
Andy Grover | a354170 | 2015-05-19 14:44:41 -0700 | [diff] [blame] | 1607 | if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)) { |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1608 | strncpy(&dev->t10_wwn.vendor[0], "LIO-ORG", 8); |
| 1609 | strncpy(&dev->t10_wwn.model[0], |
| 1610 | dev->transport->inquiry_prod, 16); |
| 1611 | strncpy(&dev->t10_wwn.revision[0], |
| 1612 | dev->transport->inquiry_rev, 4); |
| 1613 | } |
| 1614 | |
| 1615 | scsi_dump_inquiry(dev); |
| 1616 | |
| 1617 | spin_lock(&hba->device_lock); |
| 1618 | hba->dev_count++; |
| 1619 | spin_unlock(&hba->device_lock); |
Nicholas Bellinger | d9ea32b | 2013-08-22 11:33:37 -0700 | [diff] [blame] | 1620 | |
| 1621 | mutex_lock(&g_device_mutex); |
| 1622 | list_add_tail(&dev->g_dev_node, &g_device_list); |
| 1623 | mutex_unlock(&g_device_mutex); |
| 1624 | |
Nicholas Bellinger | 5f7da04 | 2015-03-05 03:28:24 +0000 | [diff] [blame] | 1625 | dev->dev_flags |= DF_CONFIGURED; |
| 1626 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1627 | return 0; |
| 1628 | |
| 1629 | out_free_alua: |
| 1630 | core_alua_free_lu_gp_mem(dev); |
| 1631 | out: |
| 1632 | se_release_vpd_for_dev(dev); |
| 1633 | return ret; |
| 1634 | } |
| 1635 | |
| 1636 | void target_free_device(struct se_device *dev) |
| 1637 | { |
| 1638 | struct se_hba *hba = dev->se_hba; |
| 1639 | |
| 1640 | WARN_ON(!list_empty(&dev->dev_sep_list)); |
| 1641 | |
| 1642 | if (dev->dev_flags & DF_CONFIGURED) { |
| 1643 | destroy_workqueue(dev->tmr_wq); |
| 1644 | |
Nicholas Bellinger | d9ea32b | 2013-08-22 11:33:37 -0700 | [diff] [blame] | 1645 | mutex_lock(&g_device_mutex); |
| 1646 | list_del(&dev->g_dev_node); |
| 1647 | mutex_unlock(&g_device_mutex); |
| 1648 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1649 | spin_lock(&hba->device_lock); |
| 1650 | hba->dev_count--; |
| 1651 | spin_unlock(&hba->device_lock); |
| 1652 | } |
| 1653 | |
| 1654 | core_alua_free_lu_gp_mem(dev); |
Hannes Reinecke | 229d4f1 | 2013-12-17 09:18:50 +0100 | [diff] [blame] | 1655 | core_alua_set_lba_map(dev, NULL, 0, 0); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1656 | core_scsi3_free_all_registrations(dev); |
| 1657 | se_release_vpd_for_dev(dev); |
| 1658 | |
Nicholas Bellinger | 2ed22c9 | 2014-01-08 18:19:31 +0000 | [diff] [blame] | 1659 | if (dev->transport->free_prot) |
| 1660 | dev->transport->free_prot(dev); |
| 1661 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1662 | dev->transport->free_device(dev); |
| 1663 | } |
| 1664 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1665 | int core_dev_setup_virtual_lun0(void) |
| 1666 | { |
| 1667 | struct se_hba *hba; |
| 1668 | struct se_device *dev; |
Andy Grover | db5d1c3 | 2013-05-28 16:55:20 -0700 | [diff] [blame] | 1669 | char buf[] = "rd_pages=8,rd_nullio=1"; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1670 | int ret; |
| 1671 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1672 | hba = core_alloc_hba("rd_mcp", 0, HBA_FLAGS_INTERNAL_USE); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1673 | if (IS_ERR(hba)) |
| 1674 | return PTR_ERR(hba); |
| 1675 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1676 | dev = target_alloc_device(hba, "virt_lun0"); |
| 1677 | if (!dev) { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1678 | ret = -ENOMEM; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1679 | goto out_free_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1680 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1681 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1682 | hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf)); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1683 | |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1684 | ret = target_configure_device(dev); |
| 1685 | if (ret) |
| 1686 | goto out_free_se_dev; |
| 1687 | |
| 1688 | lun0_hba = hba; |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1689 | g_lun0_dev = dev; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1690 | return 0; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1691 | |
| 1692 | out_free_se_dev: |
| 1693 | target_free_device(dev); |
| 1694 | out_free_hba: |
| 1695 | core_delete_hba(hba); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1696 | return ret; |
| 1697 | } |
| 1698 | |
| 1699 | |
| 1700 | void core_dev_release_virtual_lun0(void) |
| 1701 | { |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1702 | struct se_hba *hba = lun0_hba; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1703 | |
Andy Grover | 6708bb2 | 2011-06-08 10:36:43 -0700 | [diff] [blame] | 1704 | if (!hba) |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1705 | return; |
| 1706 | |
Andy Grover | e3d6f90 | 2011-07-19 08:55:10 +0000 | [diff] [blame] | 1707 | if (g_lun0_dev) |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 1708 | target_free_device(g_lun0_dev); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1709 | core_delete_hba(hba); |
| 1710 | } |
Andy Grover | 7bfea53b | 2015-05-19 14:44:40 -0700 | [diff] [blame] | 1711 | |
| 1712 | /* |
| 1713 | * Common CDB parsing for kernel and user passthrough. |
| 1714 | */ |
| 1715 | sense_reason_t |
| 1716 | passthrough_parse_cdb(struct se_cmd *cmd, |
| 1717 | sense_reason_t (*exec_cmd)(struct se_cmd *cmd)) |
| 1718 | { |
| 1719 | unsigned char *cdb = cmd->t_task_cdb; |
| 1720 | |
| 1721 | /* |
| 1722 | * Clear a lun set in the cdb if the initiator talking to use spoke |
| 1723 | * and old standards version, as we can't assume the underlying device |
| 1724 | * won't choke up on it. |
| 1725 | */ |
| 1726 | switch (cdb[0]) { |
| 1727 | case READ_10: /* SBC - RDProtect */ |
| 1728 | case READ_12: /* SBC - RDProtect */ |
| 1729 | case READ_16: /* SBC - RDProtect */ |
| 1730 | case SEND_DIAGNOSTIC: /* SPC - SELF-TEST Code */ |
| 1731 | case VERIFY: /* SBC - VRProtect */ |
| 1732 | case VERIFY_16: /* SBC - VRProtect */ |
| 1733 | case WRITE_VERIFY: /* SBC - VRProtect */ |
| 1734 | case WRITE_VERIFY_12: /* SBC - VRProtect */ |
| 1735 | case MAINTENANCE_IN: /* SPC - Parameter Data Format for SA RTPG */ |
| 1736 | break; |
| 1737 | default: |
| 1738 | cdb[1] &= 0x1f; /* clear logical unit number */ |
| 1739 | break; |
| 1740 | } |
| 1741 | |
| 1742 | /* |
| 1743 | * For REPORT LUNS we always need to emulate the response, for everything |
| 1744 | * else, pass it up. |
| 1745 | */ |
| 1746 | if (cdb[0] == REPORT_LUNS) { |
| 1747 | cmd->execute_cmd = spc_emulate_report_luns; |
| 1748 | return TCM_NO_SENSE; |
| 1749 | } |
| 1750 | |
| 1751 | /* Set DATA_CDB flag for ops that should have it */ |
| 1752 | switch (cdb[0]) { |
| 1753 | case READ_6: |
| 1754 | case READ_10: |
| 1755 | case READ_12: |
| 1756 | case READ_16: |
| 1757 | case WRITE_6: |
| 1758 | case WRITE_10: |
| 1759 | case WRITE_12: |
| 1760 | case WRITE_16: |
| 1761 | case WRITE_VERIFY: |
| 1762 | case WRITE_VERIFY_12: |
| 1763 | case 0x8e: /* WRITE_VERIFY_16 */ |
| 1764 | case COMPARE_AND_WRITE: |
| 1765 | case XDWRITEREAD_10: |
| 1766 | cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; |
| 1767 | break; |
| 1768 | case VARIABLE_LENGTH_CMD: |
| 1769 | switch (get_unaligned_be16(&cdb[8])) { |
| 1770 | case READ_32: |
| 1771 | case WRITE_32: |
| 1772 | case 0x0c: /* WRITE_VERIFY_32 */ |
| 1773 | case XDWRITEREAD_32: |
| 1774 | cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; |
| 1775 | break; |
| 1776 | } |
| 1777 | } |
| 1778 | |
| 1779 | cmd->execute_cmd = exec_cmd; |
| 1780 | |
| 1781 | return TCM_NO_SENSE; |
| 1782 | } |
| 1783 | EXPORT_SYMBOL(passthrough_parse_cdb); |