1c66ac9dbSNicholas Bellinger /******************************************************************************* 2c66ac9dbSNicholas Bellinger * Filename: target_core_configfs.c 3c66ac9dbSNicholas Bellinger * 4c66ac9dbSNicholas Bellinger * This file contains ConfigFS logic for the Generic Target Engine project. 5c66ac9dbSNicholas Bellinger * 64c76251eSNicholas Bellinger * (c) Copyright 2008-2013 Datera, Inc. 7c66ac9dbSNicholas Bellinger * 8c66ac9dbSNicholas Bellinger * Nicholas A. Bellinger <nab@kernel.org> 9c66ac9dbSNicholas Bellinger * 10c66ac9dbSNicholas Bellinger * based on configfs Copyright (C) 2005 Oracle. All rights reserved. 11c66ac9dbSNicholas Bellinger * 12c66ac9dbSNicholas Bellinger * This program is free software; you can redistribute it and/or modify 13c66ac9dbSNicholas Bellinger * it under the terms of the GNU General Public License as published by 14c66ac9dbSNicholas Bellinger * the Free Software Foundation; either version 2 of the License, or 15c66ac9dbSNicholas Bellinger * (at your option) any later version. 16c66ac9dbSNicholas Bellinger * 17c66ac9dbSNicholas Bellinger * This program is distributed in the hope that it will be useful, 18c66ac9dbSNicholas Bellinger * but WITHOUT ANY WARRANTY; without even the implied warranty of 19c66ac9dbSNicholas Bellinger * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20c66ac9dbSNicholas Bellinger * GNU General Public License for more details. 21c66ac9dbSNicholas Bellinger ****************************************************************************/ 22c66ac9dbSNicholas Bellinger 23c66ac9dbSNicholas Bellinger #include <linux/module.h> 24c66ac9dbSNicholas Bellinger #include <linux/moduleparam.h> 25c66ac9dbSNicholas Bellinger #include <generated/utsrelease.h> 26c66ac9dbSNicholas Bellinger #include <linux/utsname.h> 27c66ac9dbSNicholas Bellinger #include <linux/init.h> 28c66ac9dbSNicholas Bellinger #include <linux/fs.h> 29c66ac9dbSNicholas Bellinger #include <linux/namei.h> 30c66ac9dbSNicholas Bellinger #include <linux/slab.h> 31c66ac9dbSNicholas Bellinger #include <linux/types.h> 32c66ac9dbSNicholas Bellinger #include <linux/delay.h> 33c66ac9dbSNicholas Bellinger #include <linux/unistd.h> 34c66ac9dbSNicholas Bellinger #include <linux/string.h> 35c66ac9dbSNicholas Bellinger #include <linux/parser.h> 36c66ac9dbSNicholas Bellinger #include <linux/syscalls.h> 37c66ac9dbSNicholas Bellinger #include <linux/configfs.h> 38e3d6f909SAndy Grover #include <linux/spinlock.h> 39c66ac9dbSNicholas Bellinger 40c66ac9dbSNicholas Bellinger #include <target/target_core_base.h> 41c4795fb2SChristoph Hellwig #include <target/target_core_backend.h> 42c4795fb2SChristoph Hellwig #include <target/target_core_fabric.h> 43c66ac9dbSNicholas Bellinger 44e26d99aeSChristoph Hellwig #include "target_core_internal.h" 45c66ac9dbSNicholas Bellinger #include "target_core_alua.h" 46c66ac9dbSNicholas Bellinger #include "target_core_pr.h" 47c66ac9dbSNicholas Bellinger #include "target_core_rd.h" 48f99715acSNicholas Bellinger #include "target_core_xcopy.h" 49c66ac9dbSNicholas Bellinger 5073112edcSNicholas Bellinger #define TB_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ 510a06d430SChristoph Hellwig static void target_core_setup_##_name##_cit(struct target_backend *tb) \ 5273112edcSNicholas Bellinger { \ 530a06d430SChristoph Hellwig struct config_item_type *cit = &tb->tb_##_name##_cit; \ 5473112edcSNicholas Bellinger \ 5573112edcSNicholas Bellinger cit->ct_item_ops = _item_ops; \ 5673112edcSNicholas Bellinger cit->ct_group_ops = _group_ops; \ 5773112edcSNicholas Bellinger cit->ct_attrs = _attrs; \ 580a06d430SChristoph Hellwig cit->ct_owner = tb->ops->owner; \ 590a06d430SChristoph Hellwig pr_debug("Setup generic %s\n", __stringify(_name)); \ 600a06d430SChristoph Hellwig } 610a06d430SChristoph Hellwig 620a06d430SChristoph Hellwig #define TB_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ 630a06d430SChristoph Hellwig static void target_core_setup_##_name##_cit(struct target_backend *tb) \ 640a06d430SChristoph Hellwig { \ 650a06d430SChristoph Hellwig struct config_item_type *cit = &tb->tb_##_name##_cit; \ 660a06d430SChristoph Hellwig \ 670a06d430SChristoph Hellwig cit->ct_item_ops = _item_ops; \ 680a06d430SChristoph Hellwig cit->ct_group_ops = _group_ops; \ 690a06d430SChristoph Hellwig cit->ct_attrs = tb->ops->tb_##_name##_attrs; \ 700a06d430SChristoph Hellwig cit->ct_owner = tb->ops->owner; \ 7173112edcSNicholas Bellinger pr_debug("Setup generic %s\n", __stringify(_name)); \ 7273112edcSNicholas Bellinger } 7373112edcSNicholas Bellinger 74e3d6f909SAndy Grover extern struct t10_alua_lu_gp *default_lu_gp; 75e3d6f909SAndy Grover 76d0f474e5SRoland Dreier static LIST_HEAD(g_tf_list); 77d0f474e5SRoland Dreier static DEFINE_MUTEX(g_tf_lock); 78c66ac9dbSNicholas Bellinger 79e3d6f909SAndy Grover static struct config_group target_core_hbagroup; 80e3d6f909SAndy Grover static struct config_group alua_group; 81e3d6f909SAndy Grover static struct config_group alua_lu_gps_group; 82e3d6f909SAndy Grover 83c66ac9dbSNicholas Bellinger static inline struct se_hba * 84c66ac9dbSNicholas Bellinger item_to_hba(struct config_item *item) 85c66ac9dbSNicholas Bellinger { 86c66ac9dbSNicholas Bellinger return container_of(to_config_group(item), struct se_hba, hba_group); 87c66ac9dbSNicholas Bellinger } 88c66ac9dbSNicholas Bellinger 89c66ac9dbSNicholas Bellinger /* 90c66ac9dbSNicholas Bellinger * Attributes for /sys/kernel/config/target/ 91c66ac9dbSNicholas Bellinger */ 922eafd729SChristoph Hellwig static ssize_t target_core_item_version_show(struct config_item *item, 93c66ac9dbSNicholas Bellinger char *page) 94c66ac9dbSNicholas Bellinger { 95c66ac9dbSNicholas Bellinger return sprintf(page, "Target Engine Core ConfigFS Infrastructure %s" 96ce8dd25dSChristoph Hellwig " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_VERSION, 97c66ac9dbSNicholas Bellinger utsname()->sysname, utsname()->machine); 98c66ac9dbSNicholas Bellinger } 99c66ac9dbSNicholas Bellinger 1002eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_core_item_, version); 101c66ac9dbSNicholas Bellinger 102a96e9783SLee Duncan char db_root[DB_ROOT_LEN] = DB_ROOT_DEFAULT; 103a96e9783SLee Duncan static char db_root_stage[DB_ROOT_LEN]; 104a96e9783SLee Duncan 105a96e9783SLee Duncan static ssize_t target_core_item_dbroot_show(struct config_item *item, 106a96e9783SLee Duncan char *page) 107a96e9783SLee Duncan { 108a96e9783SLee Duncan return sprintf(page, "%s\n", db_root); 109a96e9783SLee Duncan } 110a96e9783SLee Duncan 111a96e9783SLee Duncan static ssize_t target_core_item_dbroot_store(struct config_item *item, 112a96e9783SLee Duncan const char *page, size_t count) 113a96e9783SLee Duncan { 114a96e9783SLee Duncan ssize_t read_bytes; 115a96e9783SLee Duncan struct file *fp; 116a96e9783SLee Duncan 117a96e9783SLee Duncan mutex_lock(&g_tf_lock); 118a96e9783SLee Duncan if (!list_empty(&g_tf_list)) { 119a96e9783SLee Duncan mutex_unlock(&g_tf_lock); 120a96e9783SLee Duncan pr_err("db_root: cannot be changed: target drivers registered"); 121a96e9783SLee Duncan return -EINVAL; 122a96e9783SLee Duncan } 123a96e9783SLee Duncan 124a96e9783SLee Duncan if (count > (DB_ROOT_LEN - 1)) { 125a96e9783SLee Duncan mutex_unlock(&g_tf_lock); 126a96e9783SLee Duncan pr_err("db_root: count %d exceeds DB_ROOT_LEN-1: %u\n", 127a96e9783SLee Duncan (int)count, DB_ROOT_LEN - 1); 128a96e9783SLee Duncan return -EINVAL; 129a96e9783SLee Duncan } 130a96e9783SLee Duncan 131a96e9783SLee Duncan read_bytes = snprintf(db_root_stage, DB_ROOT_LEN, "%s", page); 132a96e9783SLee Duncan if (!read_bytes) { 133a96e9783SLee Duncan mutex_unlock(&g_tf_lock); 134a96e9783SLee Duncan return -EINVAL; 135a96e9783SLee Duncan } 136a96e9783SLee Duncan if (db_root_stage[read_bytes - 1] == '\n') 137a96e9783SLee Duncan db_root_stage[read_bytes - 1] = '\0'; 138a96e9783SLee Duncan 139a96e9783SLee Duncan /* validate new db root before accepting it */ 140a96e9783SLee Duncan fp = filp_open(db_root_stage, O_RDONLY, 0); 141a96e9783SLee Duncan if (IS_ERR(fp)) { 142a96e9783SLee Duncan mutex_unlock(&g_tf_lock); 143a96e9783SLee Duncan pr_err("db_root: cannot open: %s\n", db_root_stage); 144a96e9783SLee Duncan return -EINVAL; 145a96e9783SLee Duncan } 14645063097SAl Viro if (!S_ISDIR(file_inode(fp)->i_mode)) { 1478cc3bb07SBart Van Assche filp_close(fp, NULL); 148a96e9783SLee Duncan mutex_unlock(&g_tf_lock); 149a96e9783SLee Duncan pr_err("db_root: not a directory: %s\n", db_root_stage); 150a96e9783SLee Duncan return -EINVAL; 151a96e9783SLee Duncan } 1528cc3bb07SBart Van Assche filp_close(fp, NULL); 153a96e9783SLee Duncan 154a96e9783SLee Duncan strncpy(db_root, db_root_stage, read_bytes); 155a96e9783SLee Duncan 156a96e9783SLee Duncan mutex_unlock(&g_tf_lock); 157a96e9783SLee Duncan 158a96e9783SLee Duncan return read_bytes; 159a96e9783SLee Duncan } 160a96e9783SLee Duncan 161a96e9783SLee Duncan CONFIGFS_ATTR(target_core_item_, dbroot); 162a96e9783SLee Duncan 163c66ac9dbSNicholas Bellinger static struct target_fabric_configfs *target_core_get_fabric( 164c66ac9dbSNicholas Bellinger const char *name) 165c66ac9dbSNicholas Bellinger { 166c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf; 167c66ac9dbSNicholas Bellinger 1686708bb27SAndy Grover if (!name) 169c66ac9dbSNicholas Bellinger return NULL; 170c66ac9dbSNicholas Bellinger 171c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 172c66ac9dbSNicholas Bellinger list_for_each_entry(tf, &g_tf_list, tf_list) { 1730dc2e8d1SChristoph Hellwig if (!strcmp(tf->tf_ops->name, name)) { 174c66ac9dbSNicholas Bellinger atomic_inc(&tf->tf_access_cnt); 175c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 176c66ac9dbSNicholas Bellinger return tf; 177c66ac9dbSNicholas Bellinger } 178c66ac9dbSNicholas Bellinger } 179c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 180c66ac9dbSNicholas Bellinger 181c66ac9dbSNicholas Bellinger return NULL; 182c66ac9dbSNicholas Bellinger } 183c66ac9dbSNicholas Bellinger 184c66ac9dbSNicholas Bellinger /* 185c66ac9dbSNicholas Bellinger * Called from struct target_core_group_ops->make_group() 186c66ac9dbSNicholas Bellinger */ 187c66ac9dbSNicholas Bellinger static struct config_group *target_core_register_fabric( 188c66ac9dbSNicholas Bellinger struct config_group *group, 189c66ac9dbSNicholas Bellinger const char *name) 190c66ac9dbSNicholas Bellinger { 191c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf; 192c66ac9dbSNicholas Bellinger int ret; 193c66ac9dbSNicholas Bellinger 1946708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER -> group: %p name:" 195c66ac9dbSNicholas Bellinger " %s\n", group, name); 196e7b7af6eSRoland Dreier 197e7b7af6eSRoland Dreier tf = target_core_get_fabric(name); 198e7b7af6eSRoland Dreier if (!tf) { 19962554910SNicholas Bellinger pr_debug("target_core_register_fabric() trying autoload for %s\n", 200e7b7af6eSRoland Dreier name); 201e7b7af6eSRoland Dreier 202c66ac9dbSNicholas Bellinger /* 203c66ac9dbSNicholas Bellinger * Below are some hardcoded request_module() calls to automatically 204c66ac9dbSNicholas Bellinger * local fabric modules when the following is called: 205c66ac9dbSNicholas Bellinger * 206c66ac9dbSNicholas Bellinger * mkdir -p /sys/kernel/config/target/$MODULE_NAME 207c66ac9dbSNicholas Bellinger * 208c66ac9dbSNicholas Bellinger * Note that this does not limit which TCM fabric module can be 209c66ac9dbSNicholas Bellinger * registered, but simply provids auto loading logic for modules with 210c66ac9dbSNicholas Bellinger * mkdir(2) system calls with known TCM fabric modules. 211c66ac9dbSNicholas Bellinger */ 212e7b7af6eSRoland Dreier 2136708bb27SAndy Grover if (!strncmp(name, "iscsi", 5)) { 214c66ac9dbSNicholas Bellinger /* 215c66ac9dbSNicholas Bellinger * Automatically load the LIO Target fabric module when the 216c66ac9dbSNicholas Bellinger * following is called: 217c66ac9dbSNicholas Bellinger * 218c66ac9dbSNicholas Bellinger * mkdir -p $CONFIGFS/target/iscsi 219c66ac9dbSNicholas Bellinger */ 220c66ac9dbSNicholas Bellinger ret = request_module("iscsi_target_mod"); 221c66ac9dbSNicholas Bellinger if (ret < 0) { 22262554910SNicholas Bellinger pr_debug("request_module() failed for" 223c66ac9dbSNicholas Bellinger " iscsi_target_mod.ko: %d\n", ret); 224c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 225c66ac9dbSNicholas Bellinger } 2266708bb27SAndy Grover } else if (!strncmp(name, "loopback", 8)) { 227c66ac9dbSNicholas Bellinger /* 228c66ac9dbSNicholas Bellinger * Automatically load the tcm_loop fabric module when the 229c66ac9dbSNicholas Bellinger * following is called: 230c66ac9dbSNicholas Bellinger * 231c66ac9dbSNicholas Bellinger * mkdir -p $CONFIGFS/target/loopback 232c66ac9dbSNicholas Bellinger */ 233c66ac9dbSNicholas Bellinger ret = request_module("tcm_loop"); 234c66ac9dbSNicholas Bellinger if (ret < 0) { 23562554910SNicholas Bellinger pr_debug("request_module() failed for" 236c66ac9dbSNicholas Bellinger " tcm_loop.ko: %d\n", ret); 237c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 238c66ac9dbSNicholas Bellinger } 239c66ac9dbSNicholas Bellinger } 240c66ac9dbSNicholas Bellinger 241c66ac9dbSNicholas Bellinger tf = target_core_get_fabric(name); 242e7b7af6eSRoland Dreier } 243e7b7af6eSRoland Dreier 2446708bb27SAndy Grover if (!tf) { 24562554910SNicholas Bellinger pr_debug("target_core_get_fabric() failed for %s\n", 246c66ac9dbSNicholas Bellinger name); 247c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 248c66ac9dbSNicholas Bellinger } 2496708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER -> Located fabric:" 2500dc2e8d1SChristoph Hellwig " %s\n", tf->tf_ops->name); 251c66ac9dbSNicholas Bellinger /* 252c66ac9dbSNicholas Bellinger * On a successful target_core_get_fabric() look, the returned 253c66ac9dbSNicholas Bellinger * struct target_fabric_configfs *tf will contain a usage reference. 254c66ac9dbSNicholas Bellinger */ 2556708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n", 256968ebe75SChristoph Hellwig &tf->tf_wwn_cit); 257c66ac9dbSNicholas Bellinger 258968ebe75SChristoph Hellwig config_group_init_type_name(&tf->tf_group, name, &tf->tf_wwn_cit); 2591ae1602dSChristoph Hellwig 260c66ac9dbSNicholas Bellinger config_group_init_type_name(&tf->tf_disc_group, "discovery_auth", 261968ebe75SChristoph Hellwig &tf->tf_discovery_cit); 2621ae1602dSChristoph Hellwig configfs_add_default_group(&tf->tf_disc_group, &tf->tf_group); 263c66ac9dbSNicholas Bellinger 2646708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric:" 265c66ac9dbSNicholas Bellinger " %s\n", tf->tf_group.cg_item.ci_name); 266c66ac9dbSNicholas Bellinger return &tf->tf_group; 267c66ac9dbSNicholas Bellinger } 268c66ac9dbSNicholas Bellinger 269c66ac9dbSNicholas Bellinger /* 270c66ac9dbSNicholas Bellinger * Called from struct target_core_group_ops->drop_item() 271c66ac9dbSNicholas Bellinger */ 272c66ac9dbSNicholas Bellinger static void target_core_deregister_fabric( 273c66ac9dbSNicholas Bellinger struct config_group *group, 274c66ac9dbSNicholas Bellinger struct config_item *item) 275c66ac9dbSNicholas Bellinger { 276c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf = container_of( 277c66ac9dbSNicholas Bellinger to_config_group(item), struct target_fabric_configfs, tf_group); 278c66ac9dbSNicholas Bellinger 2796708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: DEREGISTER -> Looking up %s in" 280c66ac9dbSNicholas Bellinger " tf list\n", config_item_name(item)); 281c66ac9dbSNicholas Bellinger 2826708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: DEREGISTER -> located fabric:" 2830dc2e8d1SChristoph Hellwig " %s\n", tf->tf_ops->name); 284c66ac9dbSNicholas Bellinger atomic_dec(&tf->tf_access_cnt); 285c66ac9dbSNicholas Bellinger 2866708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing ci" 287c66ac9dbSNicholas Bellinger " %s\n", config_item_name(item)); 288c66ac9dbSNicholas Bellinger 2891ae1602dSChristoph Hellwig configfs_remove_default_groups(&tf->tf_group); 290c66ac9dbSNicholas Bellinger config_item_put(item); 291c66ac9dbSNicholas Bellinger } 292c66ac9dbSNicholas Bellinger 293c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_fabric_group_ops = { 294c66ac9dbSNicholas Bellinger .make_group = &target_core_register_fabric, 295c66ac9dbSNicholas Bellinger .drop_item = &target_core_deregister_fabric, 296c66ac9dbSNicholas Bellinger }; 297c66ac9dbSNicholas Bellinger 298c66ac9dbSNicholas Bellinger /* 299c66ac9dbSNicholas Bellinger * All item attributes appearing in /sys/kernel/target/ appear here. 300c66ac9dbSNicholas Bellinger */ 301c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_fabric_item_attrs[] = { 302c66ac9dbSNicholas Bellinger &target_core_item_attr_version, 303a96e9783SLee Duncan &target_core_item_attr_dbroot, 304c66ac9dbSNicholas Bellinger NULL, 305c66ac9dbSNicholas Bellinger }; 306c66ac9dbSNicholas Bellinger 307c66ac9dbSNicholas Bellinger /* 308c66ac9dbSNicholas Bellinger * Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/ 309c66ac9dbSNicholas Bellinger */ 310c66ac9dbSNicholas Bellinger static struct config_item_type target_core_fabrics_item = { 311c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_fabric_group_ops, 312c66ac9dbSNicholas Bellinger .ct_attrs = target_core_fabric_item_attrs, 313c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 314c66ac9dbSNicholas Bellinger }; 315c66ac9dbSNicholas Bellinger 316c66ac9dbSNicholas Bellinger static struct configfs_subsystem target_core_fabrics = { 317c66ac9dbSNicholas Bellinger .su_group = { 318c66ac9dbSNicholas Bellinger .cg_item = { 319c66ac9dbSNicholas Bellinger .ci_namebuf = "target", 320c66ac9dbSNicholas Bellinger .ci_type = &target_core_fabrics_item, 321c66ac9dbSNicholas Bellinger }, 322c66ac9dbSNicholas Bellinger }, 323c66ac9dbSNicholas Bellinger }; 324c66ac9dbSNicholas Bellinger 325d588cf8fSChristoph Hellwig int target_depend_item(struct config_item *item) 326d588cf8fSChristoph Hellwig { 327d588cf8fSChristoph Hellwig return configfs_depend_item(&target_core_fabrics, item); 328d588cf8fSChristoph Hellwig } 329d588cf8fSChristoph Hellwig EXPORT_SYMBOL(target_depend_item); 330d588cf8fSChristoph Hellwig 331d588cf8fSChristoph Hellwig void target_undepend_item(struct config_item *item) 332d588cf8fSChristoph Hellwig { 3339a9e3415SKrzysztof Opasiak return configfs_undepend_item(item); 334d588cf8fSChristoph Hellwig } 335d588cf8fSChristoph Hellwig EXPORT_SYMBOL(target_undepend_item); 336c66ac9dbSNicholas Bellinger 337c66ac9dbSNicholas Bellinger /*############################################################################## 338c66ac9dbSNicholas Bellinger // Start functions called by external Target Fabrics Modules 339c66ac9dbSNicholas Bellinger //############################################################################*/ 340c66ac9dbSNicholas Bellinger 3419ac8928eSChristoph Hellwig static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) 342c66ac9dbSNicholas Bellinger { 3439ac8928eSChristoph Hellwig if (!tfo->name) { 3449ac8928eSChristoph Hellwig pr_err("Missing tfo->name\n"); 3459ac8928eSChristoph Hellwig return -EINVAL; 346c66ac9dbSNicholas Bellinger } 3479ac8928eSChristoph Hellwig if (strlen(tfo->name) >= TARGET_FABRIC_NAME_SIZE) { 3486708bb27SAndy Grover pr_err("Passed name: %s exceeds TARGET_FABRIC" 3499ac8928eSChristoph Hellwig "_NAME_SIZE\n", tfo->name); 3509ac8928eSChristoph Hellwig return -EINVAL; 351c66ac9dbSNicholas Bellinger } 3526708bb27SAndy Grover if (!tfo->get_fabric_name) { 3536708bb27SAndy Grover pr_err("Missing tfo->get_fabric_name()\n"); 354c66ac9dbSNicholas Bellinger return -EINVAL; 355c66ac9dbSNicholas Bellinger } 3566708bb27SAndy Grover if (!tfo->tpg_get_wwn) { 3576708bb27SAndy Grover pr_err("Missing tfo->tpg_get_wwn()\n"); 358c66ac9dbSNicholas Bellinger return -EINVAL; 359c66ac9dbSNicholas Bellinger } 3606708bb27SAndy Grover if (!tfo->tpg_get_tag) { 3616708bb27SAndy Grover pr_err("Missing tfo->tpg_get_tag()\n"); 362c66ac9dbSNicholas Bellinger return -EINVAL; 363c66ac9dbSNicholas Bellinger } 3646708bb27SAndy Grover if (!tfo->tpg_check_demo_mode) { 3656708bb27SAndy Grover pr_err("Missing tfo->tpg_check_demo_mode()\n"); 366c66ac9dbSNicholas Bellinger return -EINVAL; 367c66ac9dbSNicholas Bellinger } 3686708bb27SAndy Grover if (!tfo->tpg_check_demo_mode_cache) { 3696708bb27SAndy Grover pr_err("Missing tfo->tpg_check_demo_mode_cache()\n"); 370c66ac9dbSNicholas Bellinger return -EINVAL; 371c66ac9dbSNicholas Bellinger } 3726708bb27SAndy Grover if (!tfo->tpg_check_demo_mode_write_protect) { 3736708bb27SAndy Grover pr_err("Missing tfo->tpg_check_demo_mode_write_protect()\n"); 374c66ac9dbSNicholas Bellinger return -EINVAL; 375c66ac9dbSNicholas Bellinger } 3766708bb27SAndy Grover if (!tfo->tpg_check_prod_mode_write_protect) { 3776708bb27SAndy Grover pr_err("Missing tfo->tpg_check_prod_mode_write_protect()\n"); 378c66ac9dbSNicholas Bellinger return -EINVAL; 379c66ac9dbSNicholas Bellinger } 3806708bb27SAndy Grover if (!tfo->tpg_get_inst_index) { 3816708bb27SAndy Grover pr_err("Missing tfo->tpg_get_inst_index()\n"); 382c66ac9dbSNicholas Bellinger return -EINVAL; 383c66ac9dbSNicholas Bellinger } 38435462975SChristoph Hellwig if (!tfo->release_cmd) { 3856708bb27SAndy Grover pr_err("Missing tfo->release_cmd()\n"); 386c66ac9dbSNicholas Bellinger return -EINVAL; 387c66ac9dbSNicholas Bellinger } 3886708bb27SAndy Grover if (!tfo->sess_get_index) { 3896708bb27SAndy Grover pr_err("Missing tfo->sess_get_index()\n"); 390c66ac9dbSNicholas Bellinger return -EINVAL; 391c66ac9dbSNicholas Bellinger } 3926708bb27SAndy Grover if (!tfo->write_pending) { 3936708bb27SAndy Grover pr_err("Missing tfo->write_pending()\n"); 394c66ac9dbSNicholas Bellinger return -EINVAL; 395c66ac9dbSNicholas Bellinger } 3966708bb27SAndy Grover if (!tfo->write_pending_status) { 3976708bb27SAndy Grover pr_err("Missing tfo->write_pending_status()\n"); 398c66ac9dbSNicholas Bellinger return -EINVAL; 399c66ac9dbSNicholas Bellinger } 4006708bb27SAndy Grover if (!tfo->set_default_node_attributes) { 4016708bb27SAndy Grover pr_err("Missing tfo->set_default_node_attributes()\n"); 402c66ac9dbSNicholas Bellinger return -EINVAL; 403c66ac9dbSNicholas Bellinger } 4046708bb27SAndy Grover if (!tfo->get_cmd_state) { 4056708bb27SAndy Grover pr_err("Missing tfo->get_cmd_state()\n"); 406c66ac9dbSNicholas Bellinger return -EINVAL; 407c66ac9dbSNicholas Bellinger } 4086708bb27SAndy Grover if (!tfo->queue_data_in) { 4096708bb27SAndy Grover pr_err("Missing tfo->queue_data_in()\n"); 410c66ac9dbSNicholas Bellinger return -EINVAL; 411c66ac9dbSNicholas Bellinger } 4126708bb27SAndy Grover if (!tfo->queue_status) { 4136708bb27SAndy Grover pr_err("Missing tfo->queue_status()\n"); 414c66ac9dbSNicholas Bellinger return -EINVAL; 415c66ac9dbSNicholas Bellinger } 4166708bb27SAndy Grover if (!tfo->queue_tm_rsp) { 4176708bb27SAndy Grover pr_err("Missing tfo->queue_tm_rsp()\n"); 418c66ac9dbSNicholas Bellinger return -EINVAL; 419c66ac9dbSNicholas Bellinger } 420131e6abcSNicholas Bellinger if (!tfo->aborted_task) { 421131e6abcSNicholas Bellinger pr_err("Missing tfo->aborted_task()\n"); 422131e6abcSNicholas Bellinger return -EINVAL; 423131e6abcSNicholas Bellinger } 4249c28ca4fSNicholas Bellinger if (!tfo->check_stop_free) { 4259c28ca4fSNicholas Bellinger pr_err("Missing tfo->check_stop_free()\n"); 4269c28ca4fSNicholas Bellinger return -EINVAL; 4279c28ca4fSNicholas Bellinger } 428c66ac9dbSNicholas Bellinger /* 429c66ac9dbSNicholas Bellinger * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn() 430c66ac9dbSNicholas Bellinger * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in 431c66ac9dbSNicholas Bellinger * target_core_fabric_configfs.c WWN+TPG group context code. 432c66ac9dbSNicholas Bellinger */ 4336708bb27SAndy Grover if (!tfo->fabric_make_wwn) { 4346708bb27SAndy Grover pr_err("Missing tfo->fabric_make_wwn()\n"); 435c66ac9dbSNicholas Bellinger return -EINVAL; 436c66ac9dbSNicholas Bellinger } 4376708bb27SAndy Grover if (!tfo->fabric_drop_wwn) { 4386708bb27SAndy Grover pr_err("Missing tfo->fabric_drop_wwn()\n"); 439c66ac9dbSNicholas Bellinger return -EINVAL; 440c66ac9dbSNicholas Bellinger } 4416708bb27SAndy Grover if (!tfo->fabric_make_tpg) { 4426708bb27SAndy Grover pr_err("Missing tfo->fabric_make_tpg()\n"); 443c66ac9dbSNicholas Bellinger return -EINVAL; 444c66ac9dbSNicholas Bellinger } 4456708bb27SAndy Grover if (!tfo->fabric_drop_tpg) { 4466708bb27SAndy Grover pr_err("Missing tfo->fabric_drop_tpg()\n"); 447c66ac9dbSNicholas Bellinger return -EINVAL; 448c66ac9dbSNicholas Bellinger } 449c66ac9dbSNicholas Bellinger 450c66ac9dbSNicholas Bellinger return 0; 451c66ac9dbSNicholas Bellinger } 452c66ac9dbSNicholas Bellinger 4539ac8928eSChristoph Hellwig int target_register_template(const struct target_core_fabric_ops *fo) 454c66ac9dbSNicholas Bellinger { 4559ac8928eSChristoph Hellwig struct target_fabric_configfs *tf; 456c66ac9dbSNicholas Bellinger int ret; 457c66ac9dbSNicholas Bellinger 4589ac8928eSChristoph Hellwig ret = target_fabric_tf_ops_check(fo); 4599ac8928eSChristoph Hellwig if (ret) 460c66ac9dbSNicholas Bellinger return ret; 461c66ac9dbSNicholas Bellinger 4629ac8928eSChristoph Hellwig tf = kzalloc(sizeof(struct target_fabric_configfs), GFP_KERNEL); 4639ac8928eSChristoph Hellwig if (!tf) { 4649ac8928eSChristoph Hellwig pr_err("%s: could not allocate memory!\n", __func__); 4659ac8928eSChristoph Hellwig return -ENOMEM; 4669ac8928eSChristoph Hellwig } 4679ac8928eSChristoph Hellwig 4689ac8928eSChristoph Hellwig INIT_LIST_HEAD(&tf->tf_list); 4699ac8928eSChristoph Hellwig atomic_set(&tf->tf_access_cnt, 0); 470ef0caf8dSChristoph Hellwig tf->tf_ops = fo; 4719ac8928eSChristoph Hellwig target_fabric_setup_cits(tf); 4729ac8928eSChristoph Hellwig 4739ac8928eSChristoph Hellwig mutex_lock(&g_tf_lock); 4749ac8928eSChristoph Hellwig list_add_tail(&tf->tf_list, &g_tf_list); 4759ac8928eSChristoph Hellwig mutex_unlock(&g_tf_lock); 4769ac8928eSChristoph Hellwig 477c66ac9dbSNicholas Bellinger return 0; 478c66ac9dbSNicholas Bellinger } 4799ac8928eSChristoph Hellwig EXPORT_SYMBOL(target_register_template); 480c66ac9dbSNicholas Bellinger 4819ac8928eSChristoph Hellwig void target_unregister_template(const struct target_core_fabric_ops *fo) 482c66ac9dbSNicholas Bellinger { 4839ac8928eSChristoph Hellwig struct target_fabric_configfs *t; 484c66ac9dbSNicholas Bellinger 485c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 4869ac8928eSChristoph Hellwig list_for_each_entry(t, &g_tf_list, tf_list) { 4870dc2e8d1SChristoph Hellwig if (!strcmp(t->tf_ops->name, fo->name)) { 4889ac8928eSChristoph Hellwig BUG_ON(atomic_read(&t->tf_access_cnt)); 4899ac8928eSChristoph Hellwig list_del(&t->tf_list); 49094509182SNicholas Bellinger mutex_unlock(&g_tf_lock); 49194509182SNicholas Bellinger /* 49294509182SNicholas Bellinger * Wait for any outstanding fabric se_deve_entry->rcu_head 49394509182SNicholas Bellinger * callbacks to complete post kfree_rcu(), before allowing 49494509182SNicholas Bellinger * fabric driver unload of TFO->module to proceed. 49594509182SNicholas Bellinger */ 49694509182SNicholas Bellinger rcu_barrier(); 4979ac8928eSChristoph Hellwig kfree(t); 49894509182SNicholas Bellinger return; 499c66ac9dbSNicholas Bellinger } 500c66ac9dbSNicholas Bellinger } 5019ac8928eSChristoph Hellwig mutex_unlock(&g_tf_lock); 5029ac8928eSChristoph Hellwig } 5039ac8928eSChristoph Hellwig EXPORT_SYMBOL(target_unregister_template); 504c66ac9dbSNicholas Bellinger 505c66ac9dbSNicholas Bellinger /*############################################################################## 506c66ac9dbSNicholas Bellinger // Stop functions called by external Target Fabrics Modules 507c66ac9dbSNicholas Bellinger //############################################################################*/ 508c66ac9dbSNicholas Bellinger 5092eafd729SChristoph Hellwig static inline struct se_dev_attrib *to_attrib(struct config_item *item) 5102eafd729SChristoph Hellwig { 5112eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_dev_attrib, 5122eafd729SChristoph Hellwig da_group); 5135873c4d1SChristoph Hellwig } 5145873c4d1SChristoph Hellwig 5152eafd729SChristoph Hellwig /* Start functions for struct config_item_type tb_dev_attrib_cit */ 5162eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_SHOW(_name) \ 5172eafd729SChristoph Hellwig static ssize_t _name##_show(struct config_item *item, char *page) \ 5182eafd729SChristoph Hellwig { \ 5192eafd729SChristoph Hellwig return snprintf(page, PAGE_SIZE, "%u\n", to_attrib(item)->_name); \ 5202eafd729SChristoph Hellwig } 5213effdb90SChristoph Hellwig 5222eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_model_alias); 5232eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_dpo); 5242eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_write); 5252eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_read); 5262eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_write_cache); 5272eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_ua_intlck_ctrl); 5282eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_tas); 5292eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpu); 5302eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpws); 5312eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_caw); 5322eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_3pc); 5332eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_type); 5342eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_pi_prot_type); 5352eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_format); 536056e8924SDmitry Monakhov DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_verify); 5372eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(enforce_pr_isids); 5382eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(is_nonrot); 5392eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_rest_reord); 5402eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(force_pr_aptpl); 5412eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_block_size); 5422eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(block_size); 5432eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_max_sectors); 5442eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(optimal_sectors); 5452eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_queue_depth); 5462eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(queue_depth); 5472eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_lba_count); 5482eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_block_desc_count); 5492eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity); 5502eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity_alignment); 551e6f41633SJamie Pocas DEF_CONFIGFS_ATTRIB_SHOW(unmap_zeroes_data); 5522eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(max_write_same_len); 5532eafd729SChristoph Hellwig 5542eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_U32(_name) \ 5552eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page,\ 5565873c4d1SChristoph Hellwig size_t count) \ 5575873c4d1SChristoph Hellwig { \ 5582eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); \ 5593effdb90SChristoph Hellwig u32 val; \ 5605873c4d1SChristoph Hellwig int ret; \ 5615873c4d1SChristoph Hellwig \ 5623effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); \ 5633effdb90SChristoph Hellwig if (ret < 0) \ 5643effdb90SChristoph Hellwig return ret; \ 5653effdb90SChristoph Hellwig da->_name = val; \ 5663effdb90SChristoph Hellwig return count; \ 5675873c4d1SChristoph Hellwig } 5685873c4d1SChristoph Hellwig 5692eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_lba_count); 5702eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_block_desc_count); 5712eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity); 5722eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity_alignment); 5732eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_write_same_len); 5745873c4d1SChristoph Hellwig 5752eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_BOOL(_name) \ 5762eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page, \ 5773effdb90SChristoph Hellwig size_t count) \ 5783effdb90SChristoph Hellwig { \ 5792eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); \ 5803effdb90SChristoph Hellwig bool flag; \ 5813effdb90SChristoph Hellwig int ret; \ 5823effdb90SChristoph Hellwig \ 5833effdb90SChristoph Hellwig ret = strtobool(page, &flag); \ 5843effdb90SChristoph Hellwig if (ret < 0) \ 5853effdb90SChristoph Hellwig return ret; \ 5863effdb90SChristoph Hellwig da->_name = flag; \ 5873effdb90SChristoph Hellwig return count; \ 5883effdb90SChristoph Hellwig } 5893effdb90SChristoph Hellwig 5902eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_fua_write); 5912eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_caw); 5922eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_3pc); 5932eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(enforce_pr_isids); 5942eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(is_nonrot); 5953effdb90SChristoph Hellwig 5962eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_STUB(_name) \ 5972eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page,\ 5983effdb90SChristoph Hellwig size_t count) \ 5993effdb90SChristoph Hellwig { \ 6003effdb90SChristoph Hellwig printk_once(KERN_WARNING \ 601234bdbc4SChristophe Vu-Brugier "ignoring deprecated %s attribute\n", \ 602234bdbc4SChristophe Vu-Brugier __stringify(_name)); \ 6033effdb90SChristoph Hellwig return count; \ 6043effdb90SChristoph Hellwig } 6053effdb90SChristoph Hellwig 6062eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_dpo); 6072eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_fua_read); 6083effdb90SChristoph Hellwig 6093effdb90SChristoph Hellwig static void dev_set_t10_wwn_model_alias(struct se_device *dev) 6103effdb90SChristoph Hellwig { 6113effdb90SChristoph Hellwig const char *configname; 6123effdb90SChristoph Hellwig 6133effdb90SChristoph Hellwig configname = config_item_name(&dev->dev_group.cg_item); 6143effdb90SChristoph Hellwig if (strlen(configname) >= 16) { 6153effdb90SChristoph Hellwig pr_warn("dev[%p]: Backstore name '%s' is too long for " 6163effdb90SChristoph Hellwig "INQUIRY_MODEL, truncating to 16 bytes\n", dev, 6173effdb90SChristoph Hellwig configname); 6183effdb90SChristoph Hellwig } 6193effdb90SChristoph Hellwig snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); 6203effdb90SChristoph Hellwig } 6213effdb90SChristoph Hellwig 6222eafd729SChristoph Hellwig static ssize_t emulate_model_alias_store(struct config_item *item, 6233effdb90SChristoph Hellwig const char *page, size_t count) 6243effdb90SChristoph Hellwig { 6252eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6263effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 6273effdb90SChristoph Hellwig bool flag; 6283effdb90SChristoph Hellwig int ret; 6293effdb90SChristoph Hellwig 6303effdb90SChristoph Hellwig if (dev->export_count) { 6313effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change model alias" 6323effdb90SChristoph Hellwig " while export_count is %d\n", 6333effdb90SChristoph Hellwig dev, dev->export_count); 6343effdb90SChristoph Hellwig return -EINVAL; 6353effdb90SChristoph Hellwig } 6363effdb90SChristoph Hellwig 6373effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6383effdb90SChristoph Hellwig if (ret < 0) 6393effdb90SChristoph Hellwig return ret; 6403effdb90SChristoph Hellwig 6413effdb90SChristoph Hellwig if (flag) { 6423effdb90SChristoph Hellwig dev_set_t10_wwn_model_alias(dev); 6433effdb90SChristoph Hellwig } else { 6443effdb90SChristoph Hellwig strncpy(&dev->t10_wwn.model[0], 6453effdb90SChristoph Hellwig dev->transport->inquiry_prod, 16); 6463effdb90SChristoph Hellwig } 6473effdb90SChristoph Hellwig da->emulate_model_alias = flag; 6483effdb90SChristoph Hellwig return count; 6493effdb90SChristoph Hellwig } 6503effdb90SChristoph Hellwig 6512eafd729SChristoph Hellwig static ssize_t emulate_write_cache_store(struct config_item *item, 6523effdb90SChristoph Hellwig const char *page, size_t count) 6533effdb90SChristoph Hellwig { 6542eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6553effdb90SChristoph Hellwig bool flag; 6563effdb90SChristoph Hellwig int ret; 6573effdb90SChristoph Hellwig 6583effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6593effdb90SChristoph Hellwig if (ret < 0) 6603effdb90SChristoph Hellwig return ret; 6613effdb90SChristoph Hellwig 6623effdb90SChristoph Hellwig if (flag && da->da_dev->transport->get_write_cache) { 6633effdb90SChristoph Hellwig pr_err("emulate_write_cache not supported for this device\n"); 6643effdb90SChristoph Hellwig return -EINVAL; 6653effdb90SChristoph Hellwig } 6663effdb90SChristoph Hellwig 6673effdb90SChristoph Hellwig da->emulate_write_cache = flag; 6683effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", 6693effdb90SChristoph Hellwig da->da_dev, flag); 6703effdb90SChristoph Hellwig return count; 6713effdb90SChristoph Hellwig } 6723effdb90SChristoph Hellwig 6732eafd729SChristoph Hellwig static ssize_t emulate_ua_intlck_ctrl_store(struct config_item *item, 6743effdb90SChristoph Hellwig const char *page, size_t count) 6753effdb90SChristoph Hellwig { 6762eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6773effdb90SChristoph Hellwig u32 val; 6783effdb90SChristoph Hellwig int ret; 6793effdb90SChristoph Hellwig 6803effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 6813effdb90SChristoph Hellwig if (ret < 0) 6823effdb90SChristoph Hellwig return ret; 6833effdb90SChristoph Hellwig 6843effdb90SChristoph Hellwig if (val != 0 && val != 1 && val != 2) { 6853effdb90SChristoph Hellwig pr_err("Illegal value %d\n", val); 6863effdb90SChristoph Hellwig return -EINVAL; 6873effdb90SChristoph Hellwig } 6883effdb90SChristoph Hellwig 6893effdb90SChristoph Hellwig if (da->da_dev->export_count) { 6903effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device" 6913effdb90SChristoph Hellwig " UA_INTRLCK_CTRL while export_count is %d\n", 6923effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 6933effdb90SChristoph Hellwig return -EINVAL; 6943effdb90SChristoph Hellwig } 6953effdb90SChristoph Hellwig da->emulate_ua_intlck_ctrl = val; 6963effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", 6973effdb90SChristoph Hellwig da->da_dev, val); 6983effdb90SChristoph Hellwig return count; 6993effdb90SChristoph Hellwig } 7003effdb90SChristoph Hellwig 7012eafd729SChristoph Hellwig static ssize_t emulate_tas_store(struct config_item *item, 7023effdb90SChristoph Hellwig const char *page, size_t count) 7033effdb90SChristoph Hellwig { 7042eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7053effdb90SChristoph Hellwig bool flag; 7063effdb90SChristoph Hellwig int ret; 7073effdb90SChristoph Hellwig 7083effdb90SChristoph Hellwig ret = strtobool(page, &flag); 7093effdb90SChristoph Hellwig if (ret < 0) 7103effdb90SChristoph Hellwig return ret; 7113effdb90SChristoph Hellwig 7123effdb90SChristoph Hellwig if (da->da_dev->export_count) { 7133effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device TAS while" 7143effdb90SChristoph Hellwig " export_count is %d\n", 7153effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 7163effdb90SChristoph Hellwig return -EINVAL; 7173effdb90SChristoph Hellwig } 7183effdb90SChristoph Hellwig da->emulate_tas = flag; 7193effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", 7203effdb90SChristoph Hellwig da->da_dev, flag ? "Enabled" : "Disabled"); 7213effdb90SChristoph Hellwig 7223effdb90SChristoph Hellwig return count; 7233effdb90SChristoph Hellwig } 7243effdb90SChristoph Hellwig 7252eafd729SChristoph Hellwig static ssize_t emulate_tpu_store(struct config_item *item, 7263effdb90SChristoph Hellwig const char *page, size_t count) 7273effdb90SChristoph Hellwig { 7282eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7293effdb90SChristoph Hellwig bool flag; 7303effdb90SChristoph Hellwig int ret; 7313effdb90SChristoph Hellwig 7323effdb90SChristoph Hellwig ret = strtobool(page, &flag); 7333effdb90SChristoph Hellwig if (ret < 0) 7343effdb90SChristoph Hellwig return ret; 7353effdb90SChristoph Hellwig 7363effdb90SChristoph Hellwig /* 7373effdb90SChristoph Hellwig * We expect this value to be non-zero when generic Block Layer 7383effdb90SChristoph Hellwig * Discard supported is detected iblock_create_virtdevice(). 7393effdb90SChristoph Hellwig */ 7403effdb90SChristoph Hellwig if (flag && !da->max_unmap_block_desc_count) { 7413effdb90SChristoph Hellwig pr_err("Generic Block Discard not supported\n"); 7423effdb90SChristoph Hellwig return -ENOSYS; 7433effdb90SChristoph Hellwig } 7443effdb90SChristoph Hellwig 7453effdb90SChristoph Hellwig da->emulate_tpu = flag; 7463effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", 7473effdb90SChristoph Hellwig da->da_dev, flag); 7483effdb90SChristoph Hellwig return count; 7493effdb90SChristoph Hellwig } 7503effdb90SChristoph Hellwig 7512eafd729SChristoph Hellwig static ssize_t emulate_tpws_store(struct config_item *item, 7523effdb90SChristoph Hellwig const char *page, size_t count) 7533effdb90SChristoph Hellwig { 7542eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7553effdb90SChristoph Hellwig bool flag; 7563effdb90SChristoph Hellwig int ret; 7573effdb90SChristoph Hellwig 7583effdb90SChristoph Hellwig ret = strtobool(page, &flag); 7593effdb90SChristoph Hellwig if (ret < 0) 7603effdb90SChristoph Hellwig return ret; 7613effdb90SChristoph Hellwig 7623effdb90SChristoph Hellwig /* 7633effdb90SChristoph Hellwig * We expect this value to be non-zero when generic Block Layer 7643effdb90SChristoph Hellwig * Discard supported is detected iblock_create_virtdevice(). 7653effdb90SChristoph Hellwig */ 7663effdb90SChristoph Hellwig if (flag && !da->max_unmap_block_desc_count) { 7673effdb90SChristoph Hellwig pr_err("Generic Block Discard not supported\n"); 7683effdb90SChristoph Hellwig return -ENOSYS; 7693effdb90SChristoph Hellwig } 7703effdb90SChristoph Hellwig 7713effdb90SChristoph Hellwig da->emulate_tpws = flag; 7723effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", 7733effdb90SChristoph Hellwig da->da_dev, flag); 7743effdb90SChristoph Hellwig return count; 7753effdb90SChristoph Hellwig } 7763effdb90SChristoph Hellwig 7772eafd729SChristoph Hellwig static ssize_t pi_prot_type_store(struct config_item *item, 7783effdb90SChristoph Hellwig const char *page, size_t count) 7793effdb90SChristoph Hellwig { 7802eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7813effdb90SChristoph Hellwig int old_prot = da->pi_prot_type, ret; 7823effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 7833effdb90SChristoph Hellwig u32 flag; 7843effdb90SChristoph Hellwig 7853effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &flag); 7863effdb90SChristoph Hellwig if (ret < 0) 7873effdb90SChristoph Hellwig return ret; 7883effdb90SChristoph Hellwig 7893effdb90SChristoph Hellwig if (flag != 0 && flag != 1 && flag != 2 && flag != 3) { 7903effdb90SChristoph Hellwig pr_err("Illegal value %d for pi_prot_type\n", flag); 7913effdb90SChristoph Hellwig return -EINVAL; 7923effdb90SChristoph Hellwig } 7933effdb90SChristoph Hellwig if (flag == 2) { 7943effdb90SChristoph Hellwig pr_err("DIF TYPE2 protection currently not supported\n"); 7953effdb90SChristoph Hellwig return -ENOSYS; 7963effdb90SChristoph Hellwig } 7973effdb90SChristoph Hellwig if (da->hw_pi_prot_type) { 7983effdb90SChristoph Hellwig pr_warn("DIF protection enabled on underlying hardware," 7993effdb90SChristoph Hellwig " ignoring\n"); 8003effdb90SChristoph Hellwig return count; 8013effdb90SChristoph Hellwig } 8023effdb90SChristoph Hellwig if (!dev->transport->init_prot || !dev->transport->free_prot) { 8033effdb90SChristoph Hellwig /* 0 is only allowed value for non-supporting backends */ 8043effdb90SChristoph Hellwig if (flag == 0) 805bc1a7d6aSAndy Grover return count; 8063effdb90SChristoph Hellwig 8073effdb90SChristoph Hellwig pr_err("DIF protection not supported by backend: %s\n", 8083effdb90SChristoph Hellwig dev->transport->name); 8093effdb90SChristoph Hellwig return -ENOSYS; 8103effdb90SChristoph Hellwig } 8113effdb90SChristoph Hellwig if (!(dev->dev_flags & DF_CONFIGURED)) { 8123effdb90SChristoph Hellwig pr_err("DIF protection requires device to be configured\n"); 8133effdb90SChristoph Hellwig return -ENODEV; 8143effdb90SChristoph Hellwig } 8153effdb90SChristoph Hellwig if (dev->export_count) { 8163effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device PROT type while" 8173effdb90SChristoph Hellwig " export_count is %d\n", dev, dev->export_count); 8183effdb90SChristoph Hellwig return -EINVAL; 8193effdb90SChristoph Hellwig } 8203effdb90SChristoph Hellwig 8213effdb90SChristoph Hellwig da->pi_prot_type = flag; 8223effdb90SChristoph Hellwig 8233effdb90SChristoph Hellwig if (flag && !old_prot) { 8243effdb90SChristoph Hellwig ret = dev->transport->init_prot(dev); 8253effdb90SChristoph Hellwig if (ret) { 8263effdb90SChristoph Hellwig da->pi_prot_type = old_prot; 827056e8924SDmitry Monakhov da->pi_prot_verify = (bool) da->pi_prot_type; 8283effdb90SChristoph Hellwig return ret; 8293effdb90SChristoph Hellwig } 8303effdb90SChristoph Hellwig 8313effdb90SChristoph Hellwig } else if (!flag && old_prot) { 8323effdb90SChristoph Hellwig dev->transport->free_prot(dev); 8333effdb90SChristoph Hellwig } 8343effdb90SChristoph Hellwig 835056e8924SDmitry Monakhov da->pi_prot_verify = (bool) da->pi_prot_type; 8363effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag); 8373effdb90SChristoph Hellwig return count; 8383effdb90SChristoph Hellwig } 8393effdb90SChristoph Hellwig 8402eafd729SChristoph Hellwig static ssize_t pi_prot_format_store(struct config_item *item, 8413effdb90SChristoph Hellwig const char *page, size_t count) 8423effdb90SChristoph Hellwig { 8432eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 8443effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 8453effdb90SChristoph Hellwig bool flag; 8463effdb90SChristoph Hellwig int ret; 8473effdb90SChristoph Hellwig 8483effdb90SChristoph Hellwig ret = strtobool(page, &flag); 8493effdb90SChristoph Hellwig if (ret < 0) 8503effdb90SChristoph Hellwig return ret; 8513effdb90SChristoph Hellwig 8523effdb90SChristoph Hellwig if (!flag) 8533effdb90SChristoph Hellwig return count; 8543effdb90SChristoph Hellwig 8553effdb90SChristoph Hellwig if (!dev->transport->format_prot) { 8563effdb90SChristoph Hellwig pr_err("DIF protection format not supported by backend %s\n", 8573effdb90SChristoph Hellwig dev->transport->name); 8583effdb90SChristoph Hellwig return -ENOSYS; 8593effdb90SChristoph Hellwig } 8603effdb90SChristoph Hellwig if (!(dev->dev_flags & DF_CONFIGURED)) { 8613effdb90SChristoph Hellwig pr_err("DIF protection format requires device to be configured\n"); 8623effdb90SChristoph Hellwig return -ENODEV; 8633effdb90SChristoph Hellwig } 8643effdb90SChristoph Hellwig if (dev->export_count) { 8653effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to format SE Device PROT type while" 8663effdb90SChristoph Hellwig " export_count is %d\n", dev, dev->export_count); 8673effdb90SChristoph Hellwig return -EINVAL; 8683effdb90SChristoph Hellwig } 8693effdb90SChristoph Hellwig 8703effdb90SChristoph Hellwig ret = dev->transport->format_prot(dev); 8713effdb90SChristoph Hellwig if (ret) 8723effdb90SChristoph Hellwig return ret; 8733effdb90SChristoph Hellwig 8743effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Protection Format complete\n", dev); 8753effdb90SChristoph Hellwig return count; 8763effdb90SChristoph Hellwig } 8773effdb90SChristoph Hellwig 878056e8924SDmitry Monakhov static ssize_t pi_prot_verify_store(struct config_item *item, 879056e8924SDmitry Monakhov const char *page, size_t count) 880056e8924SDmitry Monakhov { 881056e8924SDmitry Monakhov struct se_dev_attrib *da = to_attrib(item); 882056e8924SDmitry Monakhov bool flag; 883056e8924SDmitry Monakhov int ret; 884056e8924SDmitry Monakhov 885056e8924SDmitry Monakhov ret = strtobool(page, &flag); 886056e8924SDmitry Monakhov if (ret < 0) 887056e8924SDmitry Monakhov return ret; 888056e8924SDmitry Monakhov 889056e8924SDmitry Monakhov if (!flag) { 890056e8924SDmitry Monakhov da->pi_prot_verify = flag; 891056e8924SDmitry Monakhov return count; 892056e8924SDmitry Monakhov } 893056e8924SDmitry Monakhov if (da->hw_pi_prot_type) { 894056e8924SDmitry Monakhov pr_warn("DIF protection enabled on underlying hardware," 895056e8924SDmitry Monakhov " ignoring\n"); 896056e8924SDmitry Monakhov return count; 897056e8924SDmitry Monakhov } 898056e8924SDmitry Monakhov if (!da->pi_prot_type) { 899056e8924SDmitry Monakhov pr_warn("DIF protection not supported by backend, ignoring\n"); 900056e8924SDmitry Monakhov return count; 901056e8924SDmitry Monakhov } 902056e8924SDmitry Monakhov da->pi_prot_verify = flag; 903056e8924SDmitry Monakhov 904056e8924SDmitry Monakhov return count; 905056e8924SDmitry Monakhov } 906056e8924SDmitry Monakhov 9072eafd729SChristoph Hellwig static ssize_t force_pr_aptpl_store(struct config_item *item, 9083effdb90SChristoph Hellwig const char *page, size_t count) 9093effdb90SChristoph Hellwig { 9102eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9113effdb90SChristoph Hellwig bool flag; 9123effdb90SChristoph Hellwig int ret; 9133effdb90SChristoph Hellwig 9143effdb90SChristoph Hellwig ret = strtobool(page, &flag); 9153effdb90SChristoph Hellwig if (ret < 0) 9163effdb90SChristoph Hellwig return ret; 9173effdb90SChristoph Hellwig if (da->da_dev->export_count) { 9183effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to set force_pr_aptpl while" 9193effdb90SChristoph Hellwig " export_count is %d\n", 9203effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 9213effdb90SChristoph Hellwig return -EINVAL; 9223effdb90SChristoph Hellwig } 9233effdb90SChristoph Hellwig 9243effdb90SChristoph Hellwig da->force_pr_aptpl = flag; 9253effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", da->da_dev, flag); 9263effdb90SChristoph Hellwig return count; 9273effdb90SChristoph Hellwig } 9283effdb90SChristoph Hellwig 9292eafd729SChristoph Hellwig static ssize_t emulate_rest_reord_store(struct config_item *item, 9303effdb90SChristoph Hellwig const char *page, size_t count) 9313effdb90SChristoph Hellwig { 9322eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9333effdb90SChristoph Hellwig bool flag; 9343effdb90SChristoph Hellwig int ret; 9353effdb90SChristoph Hellwig 9363effdb90SChristoph Hellwig ret = strtobool(page, &flag); 9373effdb90SChristoph Hellwig if (ret < 0) 9383effdb90SChristoph Hellwig return ret; 9393effdb90SChristoph Hellwig 9403effdb90SChristoph Hellwig if (flag != 0) { 9413effdb90SChristoph Hellwig printk(KERN_ERR "dev[%p]: SE Device emulation of restricted" 9423effdb90SChristoph Hellwig " reordering not implemented\n", da->da_dev); 9433effdb90SChristoph Hellwig return -ENOSYS; 9443effdb90SChristoph Hellwig } 9453effdb90SChristoph Hellwig da->emulate_rest_reord = flag; 9463effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", 9473effdb90SChristoph Hellwig da->da_dev, flag); 9483effdb90SChristoph Hellwig return count; 9493effdb90SChristoph Hellwig } 9503effdb90SChristoph Hellwig 951e6f41633SJamie Pocas static ssize_t unmap_zeroes_data_store(struct config_item *item, 952e6f41633SJamie Pocas const char *page, size_t count) 953e6f41633SJamie Pocas { 954e6f41633SJamie Pocas struct se_dev_attrib *da = to_attrib(item); 955e6f41633SJamie Pocas bool flag; 956e6f41633SJamie Pocas int ret; 957e6f41633SJamie Pocas 958e6f41633SJamie Pocas ret = strtobool(page, &flag); 959e6f41633SJamie Pocas if (ret < 0) 960e6f41633SJamie Pocas return ret; 961e6f41633SJamie Pocas 962e6f41633SJamie Pocas if (da->da_dev->export_count) { 963e6f41633SJamie Pocas pr_err("dev[%p]: Unable to change SE Device" 964e6f41633SJamie Pocas " unmap_zeroes_data while export_count is %d\n", 965e6f41633SJamie Pocas da->da_dev, da->da_dev->export_count); 966e6f41633SJamie Pocas return -EINVAL; 967e6f41633SJamie Pocas } 968e6f41633SJamie Pocas /* 969e6f41633SJamie Pocas * We expect this value to be non-zero when generic Block Layer 970e6f41633SJamie Pocas * Discard supported is detected iblock_configure_device(). 971e6f41633SJamie Pocas */ 972e6f41633SJamie Pocas if (flag && !da->max_unmap_block_desc_count) { 973e6f41633SJamie Pocas pr_err("dev[%p]: Thin Provisioning LBPRZ will not be set" 974e6f41633SJamie Pocas " because max_unmap_block_desc_count is zero\n", 975e6f41633SJamie Pocas da->da_dev); 976e6f41633SJamie Pocas return -ENOSYS; 977e6f41633SJamie Pocas } 978e6f41633SJamie Pocas da->unmap_zeroes_data = flag; 979e6f41633SJamie Pocas pr_debug("dev[%p]: SE Device Thin Provisioning LBPRZ bit: %d\n", 980e6f41633SJamie Pocas da->da_dev, flag); 9812e498f25SNicholas Bellinger return count; 982e6f41633SJamie Pocas } 983e6f41633SJamie Pocas 9843effdb90SChristoph Hellwig /* 9853effdb90SChristoph Hellwig * Note, this can only be called on unexported SE Device Object. 9863effdb90SChristoph Hellwig */ 9872eafd729SChristoph Hellwig static ssize_t queue_depth_store(struct config_item *item, 9883effdb90SChristoph Hellwig const char *page, size_t count) 9893effdb90SChristoph Hellwig { 9902eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9913effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 9923effdb90SChristoph Hellwig u32 val; 9933effdb90SChristoph Hellwig int ret; 9943effdb90SChristoph Hellwig 9953effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 9963effdb90SChristoph Hellwig if (ret < 0) 9973effdb90SChristoph Hellwig return ret; 9983effdb90SChristoph Hellwig 9993effdb90SChristoph Hellwig if (dev->export_count) { 10003effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device TCQ while" 10013effdb90SChristoph Hellwig " export_count is %d\n", 10023effdb90SChristoph Hellwig dev, dev->export_count); 10033effdb90SChristoph Hellwig return -EINVAL; 10043effdb90SChristoph Hellwig } 10053effdb90SChristoph Hellwig if (!val) { 10063effdb90SChristoph Hellwig pr_err("dev[%p]: Illegal ZERO value for queue_depth\n", dev); 10073effdb90SChristoph Hellwig return -EINVAL; 10083effdb90SChristoph Hellwig } 10093effdb90SChristoph Hellwig 10103effdb90SChristoph Hellwig if (val > dev->dev_attrib.queue_depth) { 10113effdb90SChristoph Hellwig if (val > dev->dev_attrib.hw_queue_depth) { 10123effdb90SChristoph Hellwig pr_err("dev[%p]: Passed queue_depth:" 10133effdb90SChristoph Hellwig " %u exceeds TCM/SE_Device MAX" 10143effdb90SChristoph Hellwig " TCQ: %u\n", dev, val, 10153effdb90SChristoph Hellwig dev->dev_attrib.hw_queue_depth); 10163effdb90SChristoph Hellwig return -EINVAL; 10173effdb90SChristoph Hellwig } 10183effdb90SChristoph Hellwig } 10193effdb90SChristoph Hellwig da->queue_depth = dev->queue_depth = val; 10203effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", dev, val); 10213effdb90SChristoph Hellwig return count; 10223effdb90SChristoph Hellwig } 10233effdb90SChristoph Hellwig 10242eafd729SChristoph Hellwig static ssize_t optimal_sectors_store(struct config_item *item, 10253effdb90SChristoph Hellwig const char *page, size_t count) 10263effdb90SChristoph Hellwig { 10272eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 10283effdb90SChristoph Hellwig u32 val; 10293effdb90SChristoph Hellwig int ret; 10303effdb90SChristoph Hellwig 10313effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 10323effdb90SChristoph Hellwig if (ret < 0) 10333effdb90SChristoph Hellwig return ret; 10343effdb90SChristoph Hellwig 10353effdb90SChristoph Hellwig if (da->da_dev->export_count) { 10363effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device" 10373effdb90SChristoph Hellwig " optimal_sectors while export_count is %d\n", 10383effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 10393effdb90SChristoph Hellwig return -EINVAL; 10403effdb90SChristoph Hellwig } 10413effdb90SChristoph Hellwig if (val > da->hw_max_sectors) { 10423effdb90SChristoph Hellwig pr_err("dev[%p]: Passed optimal_sectors %u cannot be" 10433effdb90SChristoph Hellwig " greater than hw_max_sectors: %u\n", 10443effdb90SChristoph Hellwig da->da_dev, val, da->hw_max_sectors); 10453effdb90SChristoph Hellwig return -EINVAL; 10463effdb90SChristoph Hellwig } 10473effdb90SChristoph Hellwig 10483effdb90SChristoph Hellwig da->optimal_sectors = val; 10493effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", 10503effdb90SChristoph Hellwig da->da_dev, val); 10513effdb90SChristoph Hellwig return count; 10523effdb90SChristoph Hellwig } 10533effdb90SChristoph Hellwig 10542eafd729SChristoph Hellwig static ssize_t block_size_store(struct config_item *item, 10553effdb90SChristoph Hellwig const char *page, size_t count) 10563effdb90SChristoph Hellwig { 10572eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 10583effdb90SChristoph Hellwig u32 val; 10593effdb90SChristoph Hellwig int ret; 10603effdb90SChristoph Hellwig 10613effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 10623effdb90SChristoph Hellwig if (ret < 0) 10633effdb90SChristoph Hellwig return ret; 10643effdb90SChristoph Hellwig 10653effdb90SChristoph Hellwig if (da->da_dev->export_count) { 10663effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device block_size" 10673effdb90SChristoph Hellwig " while export_count is %d\n", 10683effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 10693effdb90SChristoph Hellwig return -EINVAL; 10703effdb90SChristoph Hellwig } 10713effdb90SChristoph Hellwig 10723effdb90SChristoph Hellwig if (val != 512 && val != 1024 && val != 2048 && val != 4096) { 10733effdb90SChristoph Hellwig pr_err("dev[%p]: Illegal value for block_device: %u" 10743effdb90SChristoph Hellwig " for SE device, must be 512, 1024, 2048 or 4096\n", 10753effdb90SChristoph Hellwig da->da_dev, val); 10763effdb90SChristoph Hellwig return -EINVAL; 10773effdb90SChristoph Hellwig } 10783effdb90SChristoph Hellwig 10793effdb90SChristoph Hellwig da->block_size = val; 10803effdb90SChristoph Hellwig if (da->max_bytes_per_io) 10813effdb90SChristoph Hellwig da->hw_max_sectors = da->max_bytes_per_io / val; 10823effdb90SChristoph Hellwig 10833effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device block_size changed to %u\n", 10843effdb90SChristoph Hellwig da->da_dev, val); 10853effdb90SChristoph Hellwig return count; 10863effdb90SChristoph Hellwig } 10875873c4d1SChristoph Hellwig 10882eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_model_alias); 10892eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_dpo); 10902eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_fua_write); 10912eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_fua_read); 10922eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_write_cache); 10932eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_ua_intlck_ctrl); 10942eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tas); 10952eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tpu); 10962eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tpws); 10972eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_caw); 10982eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_3pc); 10992eafd729SChristoph Hellwig CONFIGFS_ATTR(, pi_prot_type); 11002eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_pi_prot_type); 11012eafd729SChristoph Hellwig CONFIGFS_ATTR(, pi_prot_format); 1102056e8924SDmitry Monakhov CONFIGFS_ATTR(, pi_prot_verify); 11032eafd729SChristoph Hellwig CONFIGFS_ATTR(, enforce_pr_isids); 11042eafd729SChristoph Hellwig CONFIGFS_ATTR(, is_nonrot); 11052eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_rest_reord); 11062eafd729SChristoph Hellwig CONFIGFS_ATTR(, force_pr_aptpl); 11072eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_block_size); 11082eafd729SChristoph Hellwig CONFIGFS_ATTR(, block_size); 11092eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_max_sectors); 11102eafd729SChristoph Hellwig CONFIGFS_ATTR(, optimal_sectors); 11112eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_queue_depth); 11122eafd729SChristoph Hellwig CONFIGFS_ATTR(, queue_depth); 11132eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_unmap_lba_count); 11142eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_unmap_block_desc_count); 11152eafd729SChristoph Hellwig CONFIGFS_ATTR(, unmap_granularity); 11162eafd729SChristoph Hellwig CONFIGFS_ATTR(, unmap_granularity_alignment); 1117e6f41633SJamie Pocas CONFIGFS_ATTR(, unmap_zeroes_data); 11182eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_write_same_len); 1119c66ac9dbSNicholas Bellinger 11205873c4d1SChristoph Hellwig /* 11215873c4d1SChristoph Hellwig * dev_attrib attributes for devices using the target core SBC/SPC 11225873c4d1SChristoph Hellwig * interpreter. Any backend using spc_parse_cdb should be using 11235873c4d1SChristoph Hellwig * these. 11245873c4d1SChristoph Hellwig */ 11255873c4d1SChristoph Hellwig struct configfs_attribute *sbc_attrib_attrs[] = { 11262eafd729SChristoph Hellwig &attr_emulate_model_alias, 11272eafd729SChristoph Hellwig &attr_emulate_dpo, 11282eafd729SChristoph Hellwig &attr_emulate_fua_write, 11292eafd729SChristoph Hellwig &attr_emulate_fua_read, 11302eafd729SChristoph Hellwig &attr_emulate_write_cache, 11312eafd729SChristoph Hellwig &attr_emulate_ua_intlck_ctrl, 11322eafd729SChristoph Hellwig &attr_emulate_tas, 11332eafd729SChristoph Hellwig &attr_emulate_tpu, 11342eafd729SChristoph Hellwig &attr_emulate_tpws, 11352eafd729SChristoph Hellwig &attr_emulate_caw, 11362eafd729SChristoph Hellwig &attr_emulate_3pc, 11372eafd729SChristoph Hellwig &attr_pi_prot_type, 11382eafd729SChristoph Hellwig &attr_hw_pi_prot_type, 11392eafd729SChristoph Hellwig &attr_pi_prot_format, 1140056e8924SDmitry Monakhov &attr_pi_prot_verify, 11412eafd729SChristoph Hellwig &attr_enforce_pr_isids, 11422eafd729SChristoph Hellwig &attr_is_nonrot, 11432eafd729SChristoph Hellwig &attr_emulate_rest_reord, 11442eafd729SChristoph Hellwig &attr_force_pr_aptpl, 11452eafd729SChristoph Hellwig &attr_hw_block_size, 11462eafd729SChristoph Hellwig &attr_block_size, 11472eafd729SChristoph Hellwig &attr_hw_max_sectors, 11482eafd729SChristoph Hellwig &attr_optimal_sectors, 11492eafd729SChristoph Hellwig &attr_hw_queue_depth, 11502eafd729SChristoph Hellwig &attr_queue_depth, 11512eafd729SChristoph Hellwig &attr_max_unmap_lba_count, 11522eafd729SChristoph Hellwig &attr_max_unmap_block_desc_count, 11532eafd729SChristoph Hellwig &attr_unmap_granularity, 11542eafd729SChristoph Hellwig &attr_unmap_granularity_alignment, 1155e6f41633SJamie Pocas &attr_unmap_zeroes_data, 11562eafd729SChristoph Hellwig &attr_max_write_same_len, 11575873c4d1SChristoph Hellwig NULL, 11585873c4d1SChristoph Hellwig }; 11595873c4d1SChristoph Hellwig EXPORT_SYMBOL(sbc_attrib_attrs); 11605873c4d1SChristoph Hellwig 11615873c4d1SChristoph Hellwig /* 11625873c4d1SChristoph Hellwig * Minimal dev_attrib attributes for devices passing through CDBs. 11635873c4d1SChristoph Hellwig * In this case we only provide a few read-only attributes for 11645873c4d1SChristoph Hellwig * backwards compatibility. 11655873c4d1SChristoph Hellwig */ 11665873c4d1SChristoph Hellwig struct configfs_attribute *passthrough_attrib_attrs[] = { 11672eafd729SChristoph Hellwig &attr_hw_pi_prot_type, 11682eafd729SChristoph Hellwig &attr_hw_block_size, 11692eafd729SChristoph Hellwig &attr_hw_max_sectors, 11702eafd729SChristoph Hellwig &attr_hw_queue_depth, 11715873c4d1SChristoph Hellwig NULL, 11725873c4d1SChristoph Hellwig }; 11735873c4d1SChristoph Hellwig EXPORT_SYMBOL(passthrough_attrib_attrs); 11745873c4d1SChristoph Hellwig 11752eafd729SChristoph Hellwig TB_CIT_SETUP_DRV(dev_attrib, NULL, NULL); 1176c66ac9dbSNicholas Bellinger 1177f79a897eSNicholas Bellinger /* End functions for struct config_item_type tb_dev_attrib_cit */ 1178c66ac9dbSNicholas Bellinger 1179f8d389c6SNicholas Bellinger /* Start functions for struct config_item_type tb_dev_wwn_cit */ 1180c66ac9dbSNicholas Bellinger 11812eafd729SChristoph Hellwig static struct t10_wwn *to_t10_wwn(struct config_item *item) 11822eafd729SChristoph Hellwig { 11832eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_wwn, t10_wwn_group); 11842eafd729SChristoph Hellwig } 1185c66ac9dbSNicholas Bellinger 1186c66ac9dbSNicholas Bellinger /* 1187c66ac9dbSNicholas Bellinger * VPD page 0x80 Unit serial 1188c66ac9dbSNicholas Bellinger */ 11892eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_unit_serial_show(struct config_item *item, 1190c66ac9dbSNicholas Bellinger char *page) 1191c66ac9dbSNicholas Bellinger { 1192c66ac9dbSNicholas Bellinger return sprintf(page, "T10 VPD Unit Serial Number: %s\n", 11932eafd729SChristoph Hellwig &to_t10_wwn(item)->unit_serial[0]); 1194c66ac9dbSNicholas Bellinger } 1195c66ac9dbSNicholas Bellinger 11962eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_unit_serial_store(struct config_item *item, 11972eafd729SChristoph Hellwig const char *page, size_t count) 1198c66ac9dbSNicholas Bellinger { 11992eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); 12000fd97ccfSChristoph Hellwig struct se_device *dev = t10_wwn->t10_dev; 1201c66ac9dbSNicholas Bellinger unsigned char buf[INQUIRY_VPD_SERIAL_LEN]; 1202c66ac9dbSNicholas Bellinger 1203c66ac9dbSNicholas Bellinger /* 1204c66ac9dbSNicholas Bellinger * If Linux/SCSI subsystem_api_t plugin got a VPD Unit Serial 1205c66ac9dbSNicholas Bellinger * from the struct scsi_device level firmware, do not allow 1206c66ac9dbSNicholas Bellinger * VPD Unit Serial to be emulated. 1207c66ac9dbSNicholas Bellinger * 1208c66ac9dbSNicholas Bellinger * Note this struct scsi_device could also be emulating VPD 1209c66ac9dbSNicholas Bellinger * information from its drivers/scsi LLD. But for now we assume 1210c66ac9dbSNicholas Bellinger * it is doing 'the right thing' wrt a world wide unique 1211c66ac9dbSNicholas Bellinger * VPD Unit Serial Number that OS dependent multipath can depend on. 1212c66ac9dbSNicholas Bellinger */ 12130fd97ccfSChristoph Hellwig if (dev->dev_flags & DF_FIRMWARE_VPD_UNIT_SERIAL) { 12146708bb27SAndy Grover pr_err("Underlying SCSI device firmware provided VPD" 1215c66ac9dbSNicholas Bellinger " Unit Serial, ignoring request\n"); 1216c66ac9dbSNicholas Bellinger return -EOPNOTSUPP; 1217c66ac9dbSNicholas Bellinger } 1218c66ac9dbSNicholas Bellinger 121960d645a4SDan Carpenter if (strlen(page) >= INQUIRY_VPD_SERIAL_LEN) { 12206708bb27SAndy Grover pr_err("Emulated VPD Unit Serial exceeds" 1221c66ac9dbSNicholas Bellinger " INQUIRY_VPD_SERIAL_LEN: %d\n", INQUIRY_VPD_SERIAL_LEN); 1222c66ac9dbSNicholas Bellinger return -EOVERFLOW; 1223c66ac9dbSNicholas Bellinger } 1224c66ac9dbSNicholas Bellinger /* 1225c66ac9dbSNicholas Bellinger * Check to see if any active $FABRIC_MOD exports exist. If they 1226c66ac9dbSNicholas Bellinger * do exist, fail here as changing this information on the fly 1227c66ac9dbSNicholas Bellinger * (underneath the initiator side OS dependent multipath code) 1228c66ac9dbSNicholas Bellinger * could cause negative effects. 1229c66ac9dbSNicholas Bellinger */ 12300fd97ccfSChristoph Hellwig if (dev->export_count) { 12316708bb27SAndy Grover pr_err("Unable to set VPD Unit Serial while" 1232c66ac9dbSNicholas Bellinger " active %d $FABRIC_MOD exports exist\n", 12330fd97ccfSChristoph Hellwig dev->export_count); 1234c66ac9dbSNicholas Bellinger return -EINVAL; 1235c66ac9dbSNicholas Bellinger } 12360fd97ccfSChristoph Hellwig 1237c66ac9dbSNicholas Bellinger /* 1238c66ac9dbSNicholas Bellinger * This currently assumes ASCII encoding for emulated VPD Unit Serial. 1239c66ac9dbSNicholas Bellinger * 1240c66ac9dbSNicholas Bellinger * Also, strip any newline added from the userspace 1241c66ac9dbSNicholas Bellinger * echo $UUID > $TARGET/$HBA/$STORAGE_OBJECT/wwn/vpd_unit_serial 1242c66ac9dbSNicholas Bellinger */ 1243c66ac9dbSNicholas Bellinger memset(buf, 0, INQUIRY_VPD_SERIAL_LEN); 1244c66ac9dbSNicholas Bellinger snprintf(buf, INQUIRY_VPD_SERIAL_LEN, "%s", page); 12450fd97ccfSChristoph Hellwig snprintf(dev->t10_wwn.unit_serial, INQUIRY_VPD_SERIAL_LEN, 1246c66ac9dbSNicholas Bellinger "%s", strstrip(buf)); 12470fd97ccfSChristoph Hellwig dev->dev_flags |= DF_EMULATED_VPD_UNIT_SERIAL; 1248c66ac9dbSNicholas Bellinger 12496708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set emulated VPD Unit Serial:" 12500fd97ccfSChristoph Hellwig " %s\n", dev->t10_wwn.unit_serial); 1251c66ac9dbSNicholas Bellinger 1252c66ac9dbSNicholas Bellinger return count; 1253c66ac9dbSNicholas Bellinger } 1254c66ac9dbSNicholas Bellinger 1255c66ac9dbSNicholas Bellinger /* 1256c66ac9dbSNicholas Bellinger * VPD page 0x83 Protocol Identifier 1257c66ac9dbSNicholas Bellinger */ 12582eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_protocol_identifier_show(struct config_item *item, 1259c66ac9dbSNicholas Bellinger char *page) 1260c66ac9dbSNicholas Bellinger { 12612eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); 1262c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; 1263c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; 1264c66ac9dbSNicholas Bellinger ssize_t len = 0; 1265c66ac9dbSNicholas Bellinger 1266c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); 1267c66ac9dbSNicholas Bellinger 1268c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); 1269c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { 12706708bb27SAndy Grover if (!vpd->protocol_identifier_set) 1271c66ac9dbSNicholas Bellinger continue; 1272c66ac9dbSNicholas Bellinger 1273c66ac9dbSNicholas Bellinger transport_dump_vpd_proto_id(vpd, buf, VPD_TMP_BUF_SIZE); 1274c66ac9dbSNicholas Bellinger 12756708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) 1276c66ac9dbSNicholas Bellinger break; 1277c66ac9dbSNicholas Bellinger 1278c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 1279c66ac9dbSNicholas Bellinger } 1280c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); 1281c66ac9dbSNicholas Bellinger 1282c66ac9dbSNicholas Bellinger return len; 1283c66ac9dbSNicholas Bellinger } 1284c66ac9dbSNicholas Bellinger 1285c66ac9dbSNicholas Bellinger /* 1286c66ac9dbSNicholas Bellinger * Generic wrapper for dumping VPD identifiers by association. 1287c66ac9dbSNicholas Bellinger */ 1288c66ac9dbSNicholas Bellinger #define DEF_DEV_WWN_ASSOC_SHOW(_name, _assoc) \ 12892eafd729SChristoph Hellwig static ssize_t target_wwn_##_name##_show(struct config_item *item, \ 1290c66ac9dbSNicholas Bellinger char *page) \ 1291c66ac9dbSNicholas Bellinger { \ 12922eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); \ 1293c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; \ 1294c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; \ 1295c66ac9dbSNicholas Bellinger ssize_t len = 0; \ 1296c66ac9dbSNicholas Bellinger \ 1297c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); \ 1298c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { \ 1299c66ac9dbSNicholas Bellinger if (vpd->association != _assoc) \ 1300c66ac9dbSNicholas Bellinger continue; \ 1301c66ac9dbSNicholas Bellinger \ 1302c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1303c66ac9dbSNicholas Bellinger transport_dump_vpd_assoc(vpd, buf, VPD_TMP_BUF_SIZE); \ 13046708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1305c66ac9dbSNicholas Bellinger break; \ 1306c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1307c66ac9dbSNicholas Bellinger \ 1308c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1309c66ac9dbSNicholas Bellinger transport_dump_vpd_ident_type(vpd, buf, VPD_TMP_BUF_SIZE); \ 13106708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1311c66ac9dbSNicholas Bellinger break; \ 1312c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1313c66ac9dbSNicholas Bellinger \ 1314c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1315c66ac9dbSNicholas Bellinger transport_dump_vpd_ident(vpd, buf, VPD_TMP_BUF_SIZE); \ 13166708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1317c66ac9dbSNicholas Bellinger break; \ 1318c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1319c66ac9dbSNicholas Bellinger } \ 1320c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); \ 1321c66ac9dbSNicholas Bellinger \ 1322c66ac9dbSNicholas Bellinger return len; \ 1323c66ac9dbSNicholas Bellinger } 1324c66ac9dbSNicholas Bellinger 13252eafd729SChristoph Hellwig /* VPD page 0x83 Association: Logical Unit */ 1326c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_logical_unit, 0x00); 13272eafd729SChristoph Hellwig /* VPD page 0x83 Association: Target Port */ 1328c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_target_port, 0x10); 13292eafd729SChristoph Hellwig /* VPD page 0x83 Association: SCSI Target Device */ 1330c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_scsi_target_device, 0x20); 1331c66ac9dbSNicholas Bellinger 13322eafd729SChristoph Hellwig CONFIGFS_ATTR(target_wwn_, vpd_unit_serial); 13332eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_protocol_identifier); 13342eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_logical_unit); 13352eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_target_port); 13362eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_scsi_target_device); 1337c66ac9dbSNicholas Bellinger 1338c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_wwn_attrs[] = { 13392eafd729SChristoph Hellwig &target_wwn_attr_vpd_unit_serial, 13402eafd729SChristoph Hellwig &target_wwn_attr_vpd_protocol_identifier, 13412eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_logical_unit, 13422eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_target_port, 13432eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_scsi_target_device, 1344c66ac9dbSNicholas Bellinger NULL, 1345c66ac9dbSNicholas Bellinger }; 1346c66ac9dbSNicholas Bellinger 13472eafd729SChristoph Hellwig TB_CIT_SETUP(dev_wwn, NULL, NULL, target_core_dev_wwn_attrs); 1348c66ac9dbSNicholas Bellinger 1349f8d389c6SNicholas Bellinger /* End functions for struct config_item_type tb_dev_wwn_cit */ 1350c66ac9dbSNicholas Bellinger 135191e2e39bSNicholas Bellinger /* Start functions for struct config_item_type tb_dev_pr_cit */ 1352c66ac9dbSNicholas Bellinger 13532eafd729SChristoph Hellwig static struct se_device *pr_to_dev(struct config_item *item) 13542eafd729SChristoph Hellwig { 13552eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_device, 13562eafd729SChristoph Hellwig dev_pr_group); 13572eafd729SChristoph Hellwig } 1358c66ac9dbSNicholas Bellinger 1359d977f437SChristoph Hellwig static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev, 1360d977f437SChristoph Hellwig char *page) 1361c66ac9dbSNicholas Bellinger { 1362c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1363c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1364c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1365c66ac9dbSNicholas Bellinger 1366c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1367c66ac9dbSNicholas Bellinger 1368c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1369d977f437SChristoph Hellwig if (!pr_reg) 1370d977f437SChristoph Hellwig return sprintf(page, "No SPC-3 Reservation holder\n"); 1371d977f437SChristoph Hellwig 1372c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1373d2843c17SAndy Grover core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); 1374c66ac9dbSNicholas Bellinger 1375d977f437SChristoph Hellwig return sprintf(page, "SPC-3 Reservation: %s Initiator: %s%s\n", 1376e3d6f909SAndy Grover se_nacl->se_tpg->se_tpg_tfo->get_fabric_name(), 1377d2843c17SAndy Grover se_nacl->initiatorname, i_buf); 1378c66ac9dbSNicholas Bellinger } 1379c66ac9dbSNicholas Bellinger 1380d977f437SChristoph Hellwig static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev, 1381d977f437SChristoph Hellwig char *page) 1382c66ac9dbSNicholas Bellinger { 1383c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1384d977f437SChristoph Hellwig ssize_t len; 1385c66ac9dbSNicholas Bellinger 1386c66ac9dbSNicholas Bellinger se_nacl = dev->dev_reserved_node_acl; 1387d977f437SChristoph Hellwig if (se_nacl) { 1388d977f437SChristoph Hellwig len = sprintf(page, 1389d977f437SChristoph Hellwig "SPC-2 Reservation: %s Initiator: %s\n", 1390e3d6f909SAndy Grover se_nacl->se_tpg->se_tpg_tfo->get_fabric_name(), 1391c66ac9dbSNicholas Bellinger se_nacl->initiatorname); 1392d977f437SChristoph Hellwig } else { 1393d977f437SChristoph Hellwig len = sprintf(page, "No SPC-2 Reservation holder\n"); 1394d977f437SChristoph Hellwig } 1395d977f437SChristoph Hellwig return len; 1396c66ac9dbSNicholas Bellinger } 1397c66ac9dbSNicholas Bellinger 13982eafd729SChristoph Hellwig static ssize_t target_pr_res_holder_show(struct config_item *item, char *page) 1399c66ac9dbSNicholas Bellinger { 14002eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1401d977f437SChristoph Hellwig int ret; 1402c66ac9dbSNicholas Bellinger 14034ec5bf0eSBryant G. Ly if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR) 1404d977f437SChristoph Hellwig return sprintf(page, "Passthrough\n"); 1405c66ac9dbSNicholas Bellinger 1406d977f437SChristoph Hellwig spin_lock(&dev->dev_reservation_lock); 1407d977f437SChristoph Hellwig if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 1408d977f437SChristoph Hellwig ret = target_core_dev_pr_show_spc2_res(dev, page); 1409d977f437SChristoph Hellwig else 1410d977f437SChristoph Hellwig ret = target_core_dev_pr_show_spc3_res(dev, page); 1411d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1412d977f437SChristoph Hellwig return ret; 1413c66ac9dbSNicholas Bellinger } 1414c66ac9dbSNicholas Bellinger 14152eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_all_tgt_pts_show(struct config_item *item, 14162eafd729SChristoph Hellwig char *page) 1417c66ac9dbSNicholas Bellinger { 14182eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1419c66ac9dbSNicholas Bellinger ssize_t len = 0; 1420c66ac9dbSNicholas Bellinger 1421c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1422d977f437SChristoph Hellwig if (!dev->dev_pr_res_holder) { 1423c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1424d977f437SChristoph Hellwig } else if (dev->dev_pr_res_holder->pr_reg_all_tg_pt) { 1425c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: All Target" 1426c66ac9dbSNicholas Bellinger " Ports registration\n"); 1427d977f437SChristoph Hellwig } else { 1428c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: Single" 1429c66ac9dbSNicholas Bellinger " Target Port registration\n"); 1430d977f437SChristoph Hellwig } 1431c66ac9dbSNicholas Bellinger 1432d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1433c66ac9dbSNicholas Bellinger return len; 1434c66ac9dbSNicholas Bellinger } 1435c66ac9dbSNicholas Bellinger 14362eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_generation_show(struct config_item *item, 14372eafd729SChristoph Hellwig char *page) 1438c66ac9dbSNicholas Bellinger { 14392eafd729SChristoph Hellwig return sprintf(page, "0x%08x\n", pr_to_dev(item)->t10_pr.pr_generation); 1440c66ac9dbSNicholas Bellinger } 1441c66ac9dbSNicholas Bellinger 1442c66ac9dbSNicholas Bellinger 14432eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_holder_tg_port_show(struct config_item *item, 14442eafd729SChristoph Hellwig char *page) 1445c66ac9dbSNicholas Bellinger { 14462eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1447c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1448c66ac9dbSNicholas Bellinger struct se_portal_group *se_tpg; 1449c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 14509ac8928eSChristoph Hellwig const struct target_core_fabric_ops *tfo; 1451c66ac9dbSNicholas Bellinger ssize_t len = 0; 1452c66ac9dbSNicholas Bellinger 1453c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1454c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 14556708bb27SAndy Grover if (!pr_reg) { 1456c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1457d977f437SChristoph Hellwig goto out_unlock; 1458c66ac9dbSNicholas Bellinger } 1459d977f437SChristoph Hellwig 1460c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1461c66ac9dbSNicholas Bellinger se_tpg = se_nacl->se_tpg; 1462e3d6f909SAndy Grover tfo = se_tpg->se_tpg_tfo; 1463c66ac9dbSNicholas Bellinger 1464c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: %s" 1465c66ac9dbSNicholas Bellinger " Target Node Endpoint: %s\n", tfo->get_fabric_name(), 1466c66ac9dbSNicholas Bellinger tfo->tpg_get_wwn(se_tpg)); 1467c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: Relative Port" 146835d1efe8SMasanari Iida " Identifier Tag: %hu %s Portal Group Tag: %hu" 1469f2d30680SHannes Reinecke " %s Logical Unit: %llu\n", pr_reg->tg_pt_sep_rtpi, 1470c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg), 147179dc9c9eSNicholas Bellinger tfo->get_fabric_name(), pr_reg->pr_aptpl_target_lun); 1472c66ac9dbSNicholas Bellinger 1473d977f437SChristoph Hellwig out_unlock: 1474d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1475c66ac9dbSNicholas Bellinger return len; 1476c66ac9dbSNicholas Bellinger } 1477c66ac9dbSNicholas Bellinger 1478c66ac9dbSNicholas Bellinger 14792eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_registered_i_pts_show(struct config_item *item, 14802eafd729SChristoph Hellwig char *page) 1481c66ac9dbSNicholas Bellinger { 14822eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14839ac8928eSChristoph Hellwig const struct target_core_fabric_ops *tfo; 1484c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1485c66ac9dbSNicholas Bellinger unsigned char buf[384]; 1486c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1487c66ac9dbSNicholas Bellinger ssize_t len = 0; 1488d2843c17SAndy Grover int reg_count = 0; 1489c66ac9dbSNicholas Bellinger 1490c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 PR Registrations:\n"); 1491c66ac9dbSNicholas Bellinger 14920fd97ccfSChristoph Hellwig spin_lock(&dev->t10_pr.registration_lock); 14930fd97ccfSChristoph Hellwig list_for_each_entry(pr_reg, &dev->t10_pr.registration_list, 1494c66ac9dbSNicholas Bellinger pr_reg_list) { 1495c66ac9dbSNicholas Bellinger 1496c66ac9dbSNicholas Bellinger memset(buf, 0, 384); 1497c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1498c66ac9dbSNicholas Bellinger tfo = pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo; 1499d2843c17SAndy Grover core_pr_dump_initiator_port(pr_reg, i_buf, 1500c66ac9dbSNicholas Bellinger PR_REG_ISID_ID_LEN); 1501c66ac9dbSNicholas Bellinger sprintf(buf, "%s Node: %s%s Key: 0x%016Lx PRgen: 0x%08x\n", 1502c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), 1503d2843c17SAndy Grover pr_reg->pr_reg_nacl->initiatorname, i_buf, pr_reg->pr_res_key, 1504c66ac9dbSNicholas Bellinger pr_reg->pr_res_generation); 1505c66ac9dbSNicholas Bellinger 15066708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) 1507c66ac9dbSNicholas Bellinger break; 1508c66ac9dbSNicholas Bellinger 1509c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 1510c66ac9dbSNicholas Bellinger reg_count++; 1511c66ac9dbSNicholas Bellinger } 15120fd97ccfSChristoph Hellwig spin_unlock(&dev->t10_pr.registration_lock); 1513c66ac9dbSNicholas Bellinger 15146708bb27SAndy Grover if (!reg_count) 1515c66ac9dbSNicholas Bellinger len += sprintf(page+len, "None\n"); 1516c66ac9dbSNicholas Bellinger 1517c66ac9dbSNicholas Bellinger return len; 1518c66ac9dbSNicholas Bellinger } 1519c66ac9dbSNicholas Bellinger 15202eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_type_show(struct config_item *item, char *page) 1521c66ac9dbSNicholas Bellinger { 15222eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1523c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1524c66ac9dbSNicholas Bellinger ssize_t len = 0; 1525c66ac9dbSNicholas Bellinger 1526c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1527c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1528d977f437SChristoph Hellwig if (pr_reg) { 1529c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation Type: %s\n", 1530c66ac9dbSNicholas Bellinger core_scsi3_pr_dump_type(pr_reg->pr_res_type)); 1531d977f437SChristoph Hellwig } else { 1532d977f437SChristoph Hellwig len = sprintf(page, "No SPC-3 Reservation holder\n"); 1533d977f437SChristoph Hellwig } 1534c66ac9dbSNicholas Bellinger 1535d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1536c66ac9dbSNicholas Bellinger return len; 1537c66ac9dbSNicholas Bellinger } 1538c66ac9dbSNicholas Bellinger 15392eafd729SChristoph Hellwig static ssize_t target_pr_res_type_show(struct config_item *item, char *page) 1540c66ac9dbSNicholas Bellinger { 15412eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 15422eafd729SChristoph Hellwig 15434ec5bf0eSBryant G. Ly if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR) 1544d977f437SChristoph Hellwig return sprintf(page, "SPC_PASSTHROUGH\n"); 1545d977f437SChristoph Hellwig else if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 1546d977f437SChristoph Hellwig return sprintf(page, "SPC2_RESERVATIONS\n"); 1547d977f437SChristoph Hellwig else 1548d977f437SChristoph Hellwig return sprintf(page, "SPC3_PERSISTENT_RESERVATIONS\n"); 1549c66ac9dbSNicholas Bellinger } 1550c66ac9dbSNicholas Bellinger 15512eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_active_show(struct config_item *item, 15522eafd729SChristoph Hellwig char *page) 1553c66ac9dbSNicholas Bellinger { 15542eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 15552eafd729SChristoph Hellwig 15564ec5bf0eSBryant G. Ly if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR) 1557c66ac9dbSNicholas Bellinger return 0; 1558c66ac9dbSNicholas Bellinger 1559c66ac9dbSNicholas Bellinger return sprintf(page, "APTPL Bit Status: %s\n", 15600fd97ccfSChristoph Hellwig (dev->t10_pr.pr_aptpl_active) ? "Activated" : "Disabled"); 1561c66ac9dbSNicholas Bellinger } 1562c66ac9dbSNicholas Bellinger 15632eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_metadata_show(struct config_item *item, 15642eafd729SChristoph Hellwig char *page) 1565c66ac9dbSNicholas Bellinger { 15662eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 15672eafd729SChristoph Hellwig 15684ec5bf0eSBryant G. Ly if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR) 1569c66ac9dbSNicholas Bellinger return 0; 1570c66ac9dbSNicholas Bellinger 1571c66ac9dbSNicholas Bellinger return sprintf(page, "Ready to process PR APTPL metadata..\n"); 1572c66ac9dbSNicholas Bellinger } 1573c66ac9dbSNicholas Bellinger 1574c66ac9dbSNicholas Bellinger enum { 1575c66ac9dbSNicholas Bellinger Opt_initiator_fabric, Opt_initiator_node, Opt_initiator_sid, 1576c66ac9dbSNicholas Bellinger Opt_sa_res_key, Opt_res_holder, Opt_res_type, Opt_res_scope, 1577c66ac9dbSNicholas Bellinger Opt_res_all_tg_pt, Opt_mapped_lun, Opt_target_fabric, 1578c66ac9dbSNicholas Bellinger Opt_target_node, Opt_tpgt, Opt_port_rtpi, Opt_target_lun, Opt_err 1579c66ac9dbSNicholas Bellinger }; 1580c66ac9dbSNicholas Bellinger 1581c66ac9dbSNicholas Bellinger static match_table_t tokens = { 1582c66ac9dbSNicholas Bellinger {Opt_initiator_fabric, "initiator_fabric=%s"}, 1583c66ac9dbSNicholas Bellinger {Opt_initiator_node, "initiator_node=%s"}, 1584c66ac9dbSNicholas Bellinger {Opt_initiator_sid, "initiator_sid=%s"}, 1585c66ac9dbSNicholas Bellinger {Opt_sa_res_key, "sa_res_key=%s"}, 1586c66ac9dbSNicholas Bellinger {Opt_res_holder, "res_holder=%d"}, 1587c66ac9dbSNicholas Bellinger {Opt_res_type, "res_type=%d"}, 1588c66ac9dbSNicholas Bellinger {Opt_res_scope, "res_scope=%d"}, 1589c66ac9dbSNicholas Bellinger {Opt_res_all_tg_pt, "res_all_tg_pt=%d"}, 1590f2d30680SHannes Reinecke {Opt_mapped_lun, "mapped_lun=%lld"}, 1591c66ac9dbSNicholas Bellinger {Opt_target_fabric, "target_fabric=%s"}, 1592c66ac9dbSNicholas Bellinger {Opt_target_node, "target_node=%s"}, 1593c66ac9dbSNicholas Bellinger {Opt_tpgt, "tpgt=%d"}, 1594c66ac9dbSNicholas Bellinger {Opt_port_rtpi, "port_rtpi=%d"}, 1595f2d30680SHannes Reinecke {Opt_target_lun, "target_lun=%lld"}, 1596c66ac9dbSNicholas Bellinger {Opt_err, NULL} 1597c66ac9dbSNicholas Bellinger }; 1598c66ac9dbSNicholas Bellinger 15992eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, 16002eafd729SChristoph Hellwig const char *page, size_t count) 1601c66ac9dbSNicholas Bellinger { 16022eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 16036d180253SJesper Juhl unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; 16046d180253SJesper Juhl unsigned char *t_fabric = NULL, *t_port = NULL; 16058d213559SJoern Engel char *orig, *ptr, *opts; 1606c66ac9dbSNicholas Bellinger substring_t args[MAX_OPT_ARGS]; 1607c66ac9dbSNicholas Bellinger unsigned long long tmp_ll; 1608c66ac9dbSNicholas Bellinger u64 sa_res_key = 0; 1609f2d30680SHannes Reinecke u64 mapped_lun = 0, target_lun = 0; 1610c66ac9dbSNicholas Bellinger int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token; 161145fb94c2SBart Van Assche u16 tpgt = 0; 161245fb94c2SBart Van Assche u8 type = 0; 1613c66ac9dbSNicholas Bellinger 16144ec5bf0eSBryant G. Ly if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR) 16159105bfc0SAndy Grover return count; 1616d977f437SChristoph Hellwig if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 16179105bfc0SAndy Grover return count; 1618c66ac9dbSNicholas Bellinger 16190fd97ccfSChristoph Hellwig if (dev->export_count) { 16206708bb27SAndy Grover pr_debug("Unable to process APTPL metadata while" 1621c66ac9dbSNicholas Bellinger " active fabric exports exist\n"); 1622c66ac9dbSNicholas Bellinger return -EINVAL; 1623c66ac9dbSNicholas Bellinger } 1624c66ac9dbSNicholas Bellinger 1625c66ac9dbSNicholas Bellinger opts = kstrdup(page, GFP_KERNEL); 1626c66ac9dbSNicholas Bellinger if (!opts) 1627c66ac9dbSNicholas Bellinger return -ENOMEM; 1628c66ac9dbSNicholas Bellinger 1629c66ac9dbSNicholas Bellinger orig = opts; 163090c161b6SSebastian Andrzej Siewior while ((ptr = strsep(&opts, ",\n")) != NULL) { 1631c66ac9dbSNicholas Bellinger if (!*ptr) 1632c66ac9dbSNicholas Bellinger continue; 1633c66ac9dbSNicholas Bellinger 1634c66ac9dbSNicholas Bellinger token = match_token(ptr, tokens, args); 1635c66ac9dbSNicholas Bellinger switch (token) { 1636c66ac9dbSNicholas Bellinger case Opt_initiator_fabric: 16378d213559SJoern Engel i_fabric = match_strdup(args); 16386d180253SJesper Juhl if (!i_fabric) { 16396d180253SJesper Juhl ret = -ENOMEM; 16406d180253SJesper Juhl goto out; 16416d180253SJesper Juhl } 1642c66ac9dbSNicholas Bellinger break; 1643c66ac9dbSNicholas Bellinger case Opt_initiator_node: 16448d213559SJoern Engel i_port = match_strdup(args); 16456d180253SJesper Juhl if (!i_port) { 16466d180253SJesper Juhl ret = -ENOMEM; 16476d180253SJesper Juhl goto out; 16486d180253SJesper Juhl } 164960d645a4SDan Carpenter if (strlen(i_port) >= PR_APTPL_MAX_IPORT_LEN) { 16506708bb27SAndy Grover pr_err("APTPL metadata initiator_node=" 1651c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_IPORT_LEN: %d\n", 1652c66ac9dbSNicholas Bellinger PR_APTPL_MAX_IPORT_LEN); 1653c66ac9dbSNicholas Bellinger ret = -EINVAL; 1654c66ac9dbSNicholas Bellinger break; 1655c66ac9dbSNicholas Bellinger } 1656c66ac9dbSNicholas Bellinger break; 1657c66ac9dbSNicholas Bellinger case Opt_initiator_sid: 16588d213559SJoern Engel isid = match_strdup(args); 16596d180253SJesper Juhl if (!isid) { 16606d180253SJesper Juhl ret = -ENOMEM; 16616d180253SJesper Juhl goto out; 16626d180253SJesper Juhl } 166360d645a4SDan Carpenter if (strlen(isid) >= PR_REG_ISID_LEN) { 16646708bb27SAndy Grover pr_err("APTPL metadata initiator_isid" 1665c66ac9dbSNicholas Bellinger "= exceeds PR_REG_ISID_LEN: %d\n", 1666c66ac9dbSNicholas Bellinger PR_REG_ISID_LEN); 1667c66ac9dbSNicholas Bellinger ret = -EINVAL; 1668c66ac9dbSNicholas Bellinger break; 1669c66ac9dbSNicholas Bellinger } 1670c66ac9dbSNicholas Bellinger break; 1671c66ac9dbSNicholas Bellinger case Opt_sa_res_key: 16728d213559SJoern Engel ret = kstrtoull(args->from, 0, &tmp_ll); 1673c66ac9dbSNicholas Bellinger if (ret < 0) { 16748d213559SJoern Engel pr_err("kstrtoull() failed for sa_res_key=\n"); 1675c66ac9dbSNicholas Bellinger goto out; 1676c66ac9dbSNicholas Bellinger } 1677c66ac9dbSNicholas Bellinger sa_res_key = (u64)tmp_ll; 1678c66ac9dbSNicholas Bellinger break; 1679c66ac9dbSNicholas Bellinger /* 1680c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Reservation 1681c66ac9dbSNicholas Bellinger */ 1682c66ac9dbSNicholas Bellinger case Opt_res_holder: 1683c2091026SDavid Disseldorp ret = match_int(args, &arg); 1684c2091026SDavid Disseldorp if (ret) 1685c2091026SDavid Disseldorp goto out; 1686c66ac9dbSNicholas Bellinger res_holder = arg; 1687c66ac9dbSNicholas Bellinger break; 1688c66ac9dbSNicholas Bellinger case Opt_res_type: 1689c2091026SDavid Disseldorp ret = match_int(args, &arg); 1690c2091026SDavid Disseldorp if (ret) 1691c2091026SDavid Disseldorp goto out; 1692c66ac9dbSNicholas Bellinger type = (u8)arg; 1693c66ac9dbSNicholas Bellinger break; 1694c66ac9dbSNicholas Bellinger case Opt_res_scope: 1695c2091026SDavid Disseldorp ret = match_int(args, &arg); 1696c2091026SDavid Disseldorp if (ret) 1697c2091026SDavid Disseldorp goto out; 1698c66ac9dbSNicholas Bellinger break; 1699c66ac9dbSNicholas Bellinger case Opt_res_all_tg_pt: 1700c2091026SDavid Disseldorp ret = match_int(args, &arg); 1701c2091026SDavid Disseldorp if (ret) 1702c2091026SDavid Disseldorp goto out; 1703c66ac9dbSNicholas Bellinger all_tg_pt = (int)arg; 1704c66ac9dbSNicholas Bellinger break; 1705c66ac9dbSNicholas Bellinger case Opt_mapped_lun: 1706c2091026SDavid Disseldorp ret = match_int(args, &arg); 1707c2091026SDavid Disseldorp if (ret) 1708c2091026SDavid Disseldorp goto out; 1709f2d30680SHannes Reinecke mapped_lun = (u64)arg; 1710c66ac9dbSNicholas Bellinger break; 1711c66ac9dbSNicholas Bellinger /* 1712c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Target Port 1713c66ac9dbSNicholas Bellinger */ 1714c66ac9dbSNicholas Bellinger case Opt_target_fabric: 17158d213559SJoern Engel t_fabric = match_strdup(args); 17166d180253SJesper Juhl if (!t_fabric) { 17176d180253SJesper Juhl ret = -ENOMEM; 17186d180253SJesper Juhl goto out; 17196d180253SJesper Juhl } 1720c66ac9dbSNicholas Bellinger break; 1721c66ac9dbSNicholas Bellinger case Opt_target_node: 17228d213559SJoern Engel t_port = match_strdup(args); 17236d180253SJesper Juhl if (!t_port) { 17246d180253SJesper Juhl ret = -ENOMEM; 17256d180253SJesper Juhl goto out; 17266d180253SJesper Juhl } 172760d645a4SDan Carpenter if (strlen(t_port) >= PR_APTPL_MAX_TPORT_LEN) { 17286708bb27SAndy Grover pr_err("APTPL metadata target_node=" 1729c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_TPORT_LEN: %d\n", 1730c66ac9dbSNicholas Bellinger PR_APTPL_MAX_TPORT_LEN); 1731c66ac9dbSNicholas Bellinger ret = -EINVAL; 1732c66ac9dbSNicholas Bellinger break; 1733c66ac9dbSNicholas Bellinger } 1734c66ac9dbSNicholas Bellinger break; 1735c66ac9dbSNicholas Bellinger case Opt_tpgt: 1736c2091026SDavid Disseldorp ret = match_int(args, &arg); 1737c2091026SDavid Disseldorp if (ret) 1738c2091026SDavid Disseldorp goto out; 1739c66ac9dbSNicholas Bellinger tpgt = (u16)arg; 1740c66ac9dbSNicholas Bellinger break; 1741c66ac9dbSNicholas Bellinger case Opt_port_rtpi: 1742c2091026SDavid Disseldorp ret = match_int(args, &arg); 1743c2091026SDavid Disseldorp if (ret) 1744c2091026SDavid Disseldorp goto out; 1745c66ac9dbSNicholas Bellinger break; 1746c66ac9dbSNicholas Bellinger case Opt_target_lun: 1747c2091026SDavid Disseldorp ret = match_int(args, &arg); 1748c2091026SDavid Disseldorp if (ret) 1749c2091026SDavid Disseldorp goto out; 1750f2d30680SHannes Reinecke target_lun = (u64)arg; 1751c66ac9dbSNicholas Bellinger break; 1752c66ac9dbSNicholas Bellinger default: 1753c66ac9dbSNicholas Bellinger break; 1754c66ac9dbSNicholas Bellinger } 1755c66ac9dbSNicholas Bellinger } 1756c66ac9dbSNicholas Bellinger 17576708bb27SAndy Grover if (!i_port || !t_port || !sa_res_key) { 17586708bb27SAndy Grover pr_err("Illegal parameters for APTPL registration\n"); 1759c66ac9dbSNicholas Bellinger ret = -EINVAL; 1760c66ac9dbSNicholas Bellinger goto out; 1761c66ac9dbSNicholas Bellinger } 1762c66ac9dbSNicholas Bellinger 1763c66ac9dbSNicholas Bellinger if (res_holder && !(type)) { 17646708bb27SAndy Grover pr_err("Illegal PR type: 0x%02x for reservation" 1765c66ac9dbSNicholas Bellinger " holder\n", type); 1766c66ac9dbSNicholas Bellinger ret = -EINVAL; 1767c66ac9dbSNicholas Bellinger goto out; 1768c66ac9dbSNicholas Bellinger } 1769c66ac9dbSNicholas Bellinger 17700fd97ccfSChristoph Hellwig ret = core_scsi3_alloc_aptpl_registration(&dev->t10_pr, sa_res_key, 1771c66ac9dbSNicholas Bellinger i_port, isid, mapped_lun, t_port, tpgt, target_lun, 1772c66ac9dbSNicholas Bellinger res_holder, all_tg_pt, type); 1773c66ac9dbSNicholas Bellinger out: 17746d180253SJesper Juhl kfree(i_fabric); 17756d180253SJesper Juhl kfree(i_port); 17766d180253SJesper Juhl kfree(isid); 17776d180253SJesper Juhl kfree(t_fabric); 17786d180253SJesper Juhl kfree(t_port); 1779c66ac9dbSNicholas Bellinger kfree(orig); 1780c66ac9dbSNicholas Bellinger return (ret == 0) ? count : ret; 1781c66ac9dbSNicholas Bellinger } 1782c66ac9dbSNicholas Bellinger 1783c66ac9dbSNicholas Bellinger 17842eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_holder); 17852eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_all_tgt_pts); 17862eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_generation); 17872eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_holder_tg_port); 17882eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_registered_i_pts); 17892eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_type); 17902eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_type); 17912eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_aptpl_active); 17922eafd729SChristoph Hellwig CONFIGFS_ATTR(target_pr_, res_aptpl_metadata); 1793c66ac9dbSNicholas Bellinger 1794c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_pr_attrs[] = { 17952eafd729SChristoph Hellwig &target_pr_attr_res_holder, 17962eafd729SChristoph Hellwig &target_pr_attr_res_pr_all_tgt_pts, 17972eafd729SChristoph Hellwig &target_pr_attr_res_pr_generation, 17982eafd729SChristoph Hellwig &target_pr_attr_res_pr_holder_tg_port, 17992eafd729SChristoph Hellwig &target_pr_attr_res_pr_registered_i_pts, 18002eafd729SChristoph Hellwig &target_pr_attr_res_pr_type, 18012eafd729SChristoph Hellwig &target_pr_attr_res_type, 18022eafd729SChristoph Hellwig &target_pr_attr_res_aptpl_active, 18032eafd729SChristoph Hellwig &target_pr_attr_res_aptpl_metadata, 1804c66ac9dbSNicholas Bellinger NULL, 1805c66ac9dbSNicholas Bellinger }; 1806c66ac9dbSNicholas Bellinger 18072eafd729SChristoph Hellwig TB_CIT_SETUP(dev_pr, NULL, NULL, target_core_dev_pr_attrs); 1808c66ac9dbSNicholas Bellinger 180991e2e39bSNicholas Bellinger /* End functions for struct config_item_type tb_dev_pr_cit */ 1810c66ac9dbSNicholas Bellinger 181173112edcSNicholas Bellinger /* Start functions for struct config_item_type tb_dev_cit */ 1812c66ac9dbSNicholas Bellinger 18132eafd729SChristoph Hellwig static inline struct se_device *to_device(struct config_item *item) 1814c66ac9dbSNicholas Bellinger { 18152eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_device, dev_group); 18162eafd729SChristoph Hellwig } 18172eafd729SChristoph Hellwig 18182eafd729SChristoph Hellwig static ssize_t target_dev_info_show(struct config_item *item, char *page) 18192eafd729SChristoph Hellwig { 18202eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1821c66ac9dbSNicholas Bellinger int bl = 0; 1822c66ac9dbSNicholas Bellinger ssize_t read_bytes = 0; 1823c66ac9dbSNicholas Bellinger 18240fd97ccfSChristoph Hellwig transport_dump_dev_state(dev, page, &bl); 1825c66ac9dbSNicholas Bellinger read_bytes += bl; 18260a06d430SChristoph Hellwig read_bytes += dev->transport->show_configfs_dev_params(dev, 18270a06d430SChristoph Hellwig page+read_bytes); 1828c66ac9dbSNicholas Bellinger return read_bytes; 1829c66ac9dbSNicholas Bellinger } 1830c66ac9dbSNicholas Bellinger 18312eafd729SChristoph Hellwig static ssize_t target_dev_control_store(struct config_item *item, 18322eafd729SChristoph Hellwig const char *page, size_t count) 1833c66ac9dbSNicholas Bellinger { 18342eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1835c66ac9dbSNicholas Bellinger 18360a06d430SChristoph Hellwig return dev->transport->set_configfs_dev_params(dev, page, count); 1837c66ac9dbSNicholas Bellinger } 1838c66ac9dbSNicholas Bellinger 18392eafd729SChristoph Hellwig static ssize_t target_dev_alias_show(struct config_item *item, char *page) 1840c66ac9dbSNicholas Bellinger { 18412eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1842c66ac9dbSNicholas Bellinger 18430fd97ccfSChristoph Hellwig if (!(dev->dev_flags & DF_USING_ALIAS)) 1844c66ac9dbSNicholas Bellinger return 0; 1845c66ac9dbSNicholas Bellinger 18460fd97ccfSChristoph Hellwig return snprintf(page, PAGE_SIZE, "%s\n", dev->dev_alias); 1847c66ac9dbSNicholas Bellinger } 1848c66ac9dbSNicholas Bellinger 18492eafd729SChristoph Hellwig static ssize_t target_dev_alias_store(struct config_item *item, 18502eafd729SChristoph Hellwig const char *page, size_t count) 1851c66ac9dbSNicholas Bellinger { 18522eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 18530fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1854c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1855c66ac9dbSNicholas Bellinger 1856c66ac9dbSNicholas Bellinger if (count > (SE_DEV_ALIAS_LEN-1)) { 18576708bb27SAndy Grover pr_err("alias count: %d exceeds" 1858c66ac9dbSNicholas Bellinger " SE_DEV_ALIAS_LEN-1: %u\n", (int)count, 1859c66ac9dbSNicholas Bellinger SE_DEV_ALIAS_LEN-1); 1860c66ac9dbSNicholas Bellinger return -EINVAL; 1861c66ac9dbSNicholas Bellinger } 1862c66ac9dbSNicholas Bellinger 18630fd97ccfSChristoph Hellwig read_bytes = snprintf(&dev->dev_alias[0], SE_DEV_ALIAS_LEN, "%s", page); 18643011684cSDan Carpenter if (!read_bytes) 18653011684cSDan Carpenter return -EINVAL; 18660fd97ccfSChristoph Hellwig if (dev->dev_alias[read_bytes - 1] == '\n') 18670fd97ccfSChristoph Hellwig dev->dev_alias[read_bytes - 1] = '\0'; 18680877eafdSSebastian Andrzej Siewior 18690fd97ccfSChristoph Hellwig dev->dev_flags |= DF_USING_ALIAS; 18703011684cSDan Carpenter 18716708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s/%s set alias: %s\n", 1872c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 18730fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 18740fd97ccfSChristoph Hellwig dev->dev_alias); 1875c66ac9dbSNicholas Bellinger 1876c66ac9dbSNicholas Bellinger return read_bytes; 1877c66ac9dbSNicholas Bellinger } 1878c66ac9dbSNicholas Bellinger 18792eafd729SChristoph Hellwig static ssize_t target_dev_udev_path_show(struct config_item *item, char *page) 1880c66ac9dbSNicholas Bellinger { 18812eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1882c66ac9dbSNicholas Bellinger 18830fd97ccfSChristoph Hellwig if (!(dev->dev_flags & DF_USING_UDEV_PATH)) 1884c66ac9dbSNicholas Bellinger return 0; 1885c66ac9dbSNicholas Bellinger 18860fd97ccfSChristoph Hellwig return snprintf(page, PAGE_SIZE, "%s\n", dev->udev_path); 1887c66ac9dbSNicholas Bellinger } 1888c66ac9dbSNicholas Bellinger 18892eafd729SChristoph Hellwig static ssize_t target_dev_udev_path_store(struct config_item *item, 18902eafd729SChristoph Hellwig const char *page, size_t count) 1891c66ac9dbSNicholas Bellinger { 18922eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 18930fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1894c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1895c66ac9dbSNicholas Bellinger 1896c66ac9dbSNicholas Bellinger if (count > (SE_UDEV_PATH_LEN-1)) { 18976708bb27SAndy Grover pr_err("udev_path count: %d exceeds" 1898c66ac9dbSNicholas Bellinger " SE_UDEV_PATH_LEN-1: %u\n", (int)count, 1899c66ac9dbSNicholas Bellinger SE_UDEV_PATH_LEN-1); 1900c66ac9dbSNicholas Bellinger return -EINVAL; 1901c66ac9dbSNicholas Bellinger } 1902c66ac9dbSNicholas Bellinger 19030fd97ccfSChristoph Hellwig read_bytes = snprintf(&dev->udev_path[0], SE_UDEV_PATH_LEN, 1904c66ac9dbSNicholas Bellinger "%s", page); 19053011684cSDan Carpenter if (!read_bytes) 19063011684cSDan Carpenter return -EINVAL; 19070fd97ccfSChristoph Hellwig if (dev->udev_path[read_bytes - 1] == '\n') 19080fd97ccfSChristoph Hellwig dev->udev_path[read_bytes - 1] = '\0'; 19090877eafdSSebastian Andrzej Siewior 19100fd97ccfSChristoph Hellwig dev->dev_flags |= DF_USING_UDEV_PATH; 19113011684cSDan Carpenter 19126708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s/%s set udev_path: %s\n", 1913c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 19140fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 19150fd97ccfSChristoph Hellwig dev->udev_path); 1916c66ac9dbSNicholas Bellinger 1917c66ac9dbSNicholas Bellinger return read_bytes; 1918c66ac9dbSNicholas Bellinger } 1919c66ac9dbSNicholas Bellinger 19202eafd729SChristoph Hellwig static ssize_t target_dev_enable_show(struct config_item *item, char *page) 192164146db7SAndy Grover { 19222eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 192364146db7SAndy Grover 192464146db7SAndy Grover return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED)); 192564146db7SAndy Grover } 192664146db7SAndy Grover 19272eafd729SChristoph Hellwig static ssize_t target_dev_enable_store(struct config_item *item, 19282eafd729SChristoph Hellwig const char *page, size_t count) 1929c66ac9dbSNicholas Bellinger { 19302eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1931c66ac9dbSNicholas Bellinger char *ptr; 19320fd97ccfSChristoph Hellwig int ret; 1933c66ac9dbSNicholas Bellinger 1934c66ac9dbSNicholas Bellinger ptr = strstr(page, "1"); 19356708bb27SAndy Grover if (!ptr) { 19366708bb27SAndy Grover pr_err("For dev_enable ops, only valid value" 1937c66ac9dbSNicholas Bellinger " is \"1\"\n"); 1938c66ac9dbSNicholas Bellinger return -EINVAL; 1939c66ac9dbSNicholas Bellinger } 1940c66ac9dbSNicholas Bellinger 19410fd97ccfSChristoph Hellwig ret = target_configure_device(dev); 19420fd97ccfSChristoph Hellwig if (ret) 19430fd97ccfSChristoph Hellwig return ret; 1944c66ac9dbSNicholas Bellinger return count; 1945c66ac9dbSNicholas Bellinger } 1946c66ac9dbSNicholas Bellinger 19472eafd729SChristoph Hellwig static ssize_t target_dev_alua_lu_gp_show(struct config_item *item, char *page) 1948c66ac9dbSNicholas Bellinger { 19492eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1950c66ac9dbSNicholas Bellinger struct config_item *lu_ci; 1951c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 1952c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 1953c66ac9dbSNicholas Bellinger ssize_t len = 0; 1954c66ac9dbSNicholas Bellinger 1955c66ac9dbSNicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 1956c87fbd56SChristoph Hellwig if (!lu_gp_mem) 1957c87fbd56SChristoph Hellwig return 0; 1958c66ac9dbSNicholas Bellinger 1959c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 1960c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 19616708bb27SAndy Grover if (lu_gp) { 1962c66ac9dbSNicholas Bellinger lu_ci = &lu_gp->lu_gp_group.cg_item; 1963c66ac9dbSNicholas Bellinger len += sprintf(page, "LU Group Alias: %s\nLU Group ID: %hu\n", 1964c66ac9dbSNicholas Bellinger config_item_name(lu_ci), lu_gp->lu_gp_id); 1965c66ac9dbSNicholas Bellinger } 1966c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1967c66ac9dbSNicholas Bellinger 1968c66ac9dbSNicholas Bellinger return len; 1969c66ac9dbSNicholas Bellinger } 1970c66ac9dbSNicholas Bellinger 19712eafd729SChristoph Hellwig static ssize_t target_dev_alua_lu_gp_store(struct config_item *item, 19722eafd729SChristoph Hellwig const char *page, size_t count) 1973c66ac9dbSNicholas Bellinger { 19742eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 19750fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1976c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = NULL, *lu_gp_new = NULL; 1977c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 1978c66ac9dbSNicholas Bellinger unsigned char buf[LU_GROUP_NAME_BUF]; 1979c66ac9dbSNicholas Bellinger int move = 0; 1980c66ac9dbSNicholas Bellinger 1981c87fbd56SChristoph Hellwig lu_gp_mem = dev->dev_alua_lu_gp_mem; 1982c87fbd56SChristoph Hellwig if (!lu_gp_mem) 19839105bfc0SAndy Grover return count; 1984c87fbd56SChristoph Hellwig 1985c66ac9dbSNicholas Bellinger if (count > LU_GROUP_NAME_BUF) { 19866708bb27SAndy Grover pr_err("ALUA LU Group Alias too large!\n"); 1987c66ac9dbSNicholas Bellinger return -EINVAL; 1988c66ac9dbSNicholas Bellinger } 1989c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 1990c66ac9dbSNicholas Bellinger memcpy(buf, page, count); 1991c66ac9dbSNicholas Bellinger /* 1992c66ac9dbSNicholas Bellinger * Any ALUA logical unit alias besides "NULL" means we will be 1993c66ac9dbSNicholas Bellinger * making a new group association. 1994c66ac9dbSNicholas Bellinger */ 1995c66ac9dbSNicholas Bellinger if (strcmp(strstrip(buf), "NULL")) { 1996c66ac9dbSNicholas Bellinger /* 1997c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name() will increment reference to 1998c66ac9dbSNicholas Bellinger * struct t10_alua_lu_gp. This reference is released with 1999c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name below(). 2000c66ac9dbSNicholas Bellinger */ 2001c66ac9dbSNicholas Bellinger lu_gp_new = core_alua_get_lu_gp_by_name(strstrip(buf)); 20026708bb27SAndy Grover if (!lu_gp_new) 2003c66ac9dbSNicholas Bellinger return -ENODEV; 2004c66ac9dbSNicholas Bellinger } 2005c66ac9dbSNicholas Bellinger 2006c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 2007c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 20086708bb27SAndy Grover if (lu_gp) { 2009c66ac9dbSNicholas Bellinger /* 2010c66ac9dbSNicholas Bellinger * Clearing an existing lu_gp association, and replacing 2011c66ac9dbSNicholas Bellinger * with NULL 2012c66ac9dbSNicholas Bellinger */ 20136708bb27SAndy Grover if (!lu_gp_new) { 20146708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing %s/%s" 2015c66ac9dbSNicholas Bellinger " from ALUA LU Group: core/alua/lu_gps/%s, ID:" 2016c66ac9dbSNicholas Bellinger " %hu\n", 2017c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 20180fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 2019c66ac9dbSNicholas Bellinger config_item_name(&lu_gp->lu_gp_group.cg_item), 2020c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 2021c66ac9dbSNicholas Bellinger 2022c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 2023c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 2024c66ac9dbSNicholas Bellinger 2025c66ac9dbSNicholas Bellinger return count; 2026c66ac9dbSNicholas Bellinger } 2027c66ac9dbSNicholas Bellinger /* 2028c66ac9dbSNicholas Bellinger * Removing existing association of lu_gp_mem with lu_gp 2029c66ac9dbSNicholas Bellinger */ 2030c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 2031c66ac9dbSNicholas Bellinger move = 1; 2032c66ac9dbSNicholas Bellinger } 2033c66ac9dbSNicholas Bellinger /* 2034c66ac9dbSNicholas Bellinger * Associate lu_gp_mem with lu_gp_new. 2035c66ac9dbSNicholas Bellinger */ 2036c66ac9dbSNicholas Bellinger __core_alua_attach_lu_gp_mem(lu_gp_mem, lu_gp_new); 2037c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 2038c66ac9dbSNicholas Bellinger 20396708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s %s/%s to ALUA LU Group:" 2040c66ac9dbSNicholas Bellinger " core/alua/lu_gps/%s, ID: %hu\n", 2041c66ac9dbSNicholas Bellinger (move) ? "Moving" : "Adding", 2042c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 20430fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 2044c66ac9dbSNicholas Bellinger config_item_name(&lu_gp_new->lu_gp_group.cg_item), 2045c66ac9dbSNicholas Bellinger lu_gp_new->lu_gp_id); 2046c66ac9dbSNicholas Bellinger 2047c66ac9dbSNicholas Bellinger core_alua_put_lu_gp_from_name(lu_gp_new); 2048c66ac9dbSNicholas Bellinger return count; 2049c66ac9dbSNicholas Bellinger } 2050c66ac9dbSNicholas Bellinger 20512eafd729SChristoph Hellwig static ssize_t target_dev_lba_map_show(struct config_item *item, char *page) 2052229d4f11SHannes Reinecke { 20532eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 2054229d4f11SHannes Reinecke struct t10_alua_lba_map *map; 2055229d4f11SHannes Reinecke struct t10_alua_lba_map_member *mem; 2056229d4f11SHannes Reinecke char *b = page; 2057229d4f11SHannes Reinecke int bl = 0; 2058229d4f11SHannes Reinecke char state; 2059229d4f11SHannes Reinecke 2060229d4f11SHannes Reinecke spin_lock(&dev->t10_alua.lba_map_lock); 2061229d4f11SHannes Reinecke if (!list_empty(&dev->t10_alua.lba_map_list)) 2062229d4f11SHannes Reinecke bl += sprintf(b + bl, "%u %u\n", 2063229d4f11SHannes Reinecke dev->t10_alua.lba_map_segment_size, 2064229d4f11SHannes Reinecke dev->t10_alua.lba_map_segment_multiplier); 2065229d4f11SHannes Reinecke list_for_each_entry(map, &dev->t10_alua.lba_map_list, lba_map_list) { 2066229d4f11SHannes Reinecke bl += sprintf(b + bl, "%llu %llu", 2067229d4f11SHannes Reinecke map->lba_map_first_lba, map->lba_map_last_lba); 2068229d4f11SHannes Reinecke list_for_each_entry(mem, &map->lba_map_mem_list, 2069229d4f11SHannes Reinecke lba_map_mem_list) { 2070229d4f11SHannes Reinecke switch (mem->lba_map_mem_alua_state) { 2071229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED: 2072229d4f11SHannes Reinecke state = 'O'; 2073229d4f11SHannes Reinecke break; 2074229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED: 2075229d4f11SHannes Reinecke state = 'A'; 2076229d4f11SHannes Reinecke break; 2077229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_STANDBY: 2078229d4f11SHannes Reinecke state = 'S'; 2079229d4f11SHannes Reinecke break; 2080229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_UNAVAILABLE: 2081229d4f11SHannes Reinecke state = 'U'; 2082229d4f11SHannes Reinecke break; 2083229d4f11SHannes Reinecke default: 2084229d4f11SHannes Reinecke state = '.'; 2085229d4f11SHannes Reinecke break; 2086229d4f11SHannes Reinecke } 2087229d4f11SHannes Reinecke bl += sprintf(b + bl, " %d:%c", 2088229d4f11SHannes Reinecke mem->lba_map_mem_alua_pg_id, state); 2089229d4f11SHannes Reinecke } 2090229d4f11SHannes Reinecke bl += sprintf(b + bl, "\n"); 2091229d4f11SHannes Reinecke } 2092229d4f11SHannes Reinecke spin_unlock(&dev->t10_alua.lba_map_lock); 2093229d4f11SHannes Reinecke return bl; 2094229d4f11SHannes Reinecke } 2095229d4f11SHannes Reinecke 20962eafd729SChristoph Hellwig static ssize_t target_dev_lba_map_store(struct config_item *item, 20972eafd729SChristoph Hellwig const char *page, size_t count) 2098229d4f11SHannes Reinecke { 20992eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 2100229d4f11SHannes Reinecke struct t10_alua_lba_map *lba_map = NULL; 2101229d4f11SHannes Reinecke struct list_head lba_list; 2102f0a8afecSBart Van Assche char *map_entries, *orig, *ptr; 2103229d4f11SHannes Reinecke char state; 2104229d4f11SHannes Reinecke int pg_num = -1, pg; 2105229d4f11SHannes Reinecke int ret = 0, num = 0, pg_id, alua_state; 2106229d4f11SHannes Reinecke unsigned long start_lba = -1, end_lba = -1; 2107229d4f11SHannes Reinecke unsigned long segment_size = -1, segment_mult = -1; 2108229d4f11SHannes Reinecke 2109f0a8afecSBart Van Assche orig = map_entries = kstrdup(page, GFP_KERNEL); 2110229d4f11SHannes Reinecke if (!map_entries) 2111229d4f11SHannes Reinecke return -ENOMEM; 2112229d4f11SHannes Reinecke 2113229d4f11SHannes Reinecke INIT_LIST_HEAD(&lba_list); 2114229d4f11SHannes Reinecke while ((ptr = strsep(&map_entries, "\n")) != NULL) { 2115229d4f11SHannes Reinecke if (!*ptr) 2116229d4f11SHannes Reinecke continue; 2117229d4f11SHannes Reinecke 2118229d4f11SHannes Reinecke if (num == 0) { 2119229d4f11SHannes Reinecke if (sscanf(ptr, "%lu %lu\n", 2120229d4f11SHannes Reinecke &segment_size, &segment_mult) != 2) { 2121229d4f11SHannes Reinecke pr_err("Invalid line %d\n", num); 2122229d4f11SHannes Reinecke ret = -EINVAL; 2123229d4f11SHannes Reinecke break; 2124229d4f11SHannes Reinecke } 2125229d4f11SHannes Reinecke num++; 2126229d4f11SHannes Reinecke continue; 2127229d4f11SHannes Reinecke } 2128229d4f11SHannes Reinecke if (sscanf(ptr, "%lu %lu", &start_lba, &end_lba) != 2) { 2129229d4f11SHannes Reinecke pr_err("Invalid line %d\n", num); 2130229d4f11SHannes Reinecke ret = -EINVAL; 2131229d4f11SHannes Reinecke break; 2132229d4f11SHannes Reinecke } 2133229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2134229d4f11SHannes Reinecke if (!ptr) { 2135229d4f11SHannes Reinecke pr_err("Invalid line %d, missing end lba\n", num); 2136229d4f11SHannes Reinecke ret = -EINVAL; 2137229d4f11SHannes Reinecke break; 2138229d4f11SHannes Reinecke } 2139229d4f11SHannes Reinecke ptr++; 2140229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2141229d4f11SHannes Reinecke if (!ptr) { 2142229d4f11SHannes Reinecke pr_err("Invalid line %d, missing state definitions\n", 2143229d4f11SHannes Reinecke num); 2144229d4f11SHannes Reinecke ret = -EINVAL; 2145229d4f11SHannes Reinecke break; 2146229d4f11SHannes Reinecke } 2147229d4f11SHannes Reinecke ptr++; 2148229d4f11SHannes Reinecke lba_map = core_alua_allocate_lba_map(&lba_list, 2149229d4f11SHannes Reinecke start_lba, end_lba); 2150229d4f11SHannes Reinecke if (IS_ERR(lba_map)) { 2151229d4f11SHannes Reinecke ret = PTR_ERR(lba_map); 2152229d4f11SHannes Reinecke break; 2153229d4f11SHannes Reinecke } 2154229d4f11SHannes Reinecke pg = 0; 2155229d4f11SHannes Reinecke while (sscanf(ptr, "%d:%c", &pg_id, &state) == 2) { 2156229d4f11SHannes Reinecke switch (state) { 2157229d4f11SHannes Reinecke case 'O': 2158229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED; 2159229d4f11SHannes Reinecke break; 2160229d4f11SHannes Reinecke case 'A': 2161229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED; 2162229d4f11SHannes Reinecke break; 2163229d4f11SHannes Reinecke case 'S': 2164229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_STANDBY; 2165229d4f11SHannes Reinecke break; 2166229d4f11SHannes Reinecke case 'U': 2167229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_UNAVAILABLE; 2168229d4f11SHannes Reinecke break; 2169229d4f11SHannes Reinecke default: 2170229d4f11SHannes Reinecke pr_err("Invalid ALUA state '%c'\n", state); 2171229d4f11SHannes Reinecke ret = -EINVAL; 2172229d4f11SHannes Reinecke goto out; 2173229d4f11SHannes Reinecke } 2174229d4f11SHannes Reinecke 2175229d4f11SHannes Reinecke ret = core_alua_allocate_lba_map_mem(lba_map, 2176229d4f11SHannes Reinecke pg_id, alua_state); 2177229d4f11SHannes Reinecke if (ret) { 2178229d4f11SHannes Reinecke pr_err("Invalid target descriptor %d:%c " 2179229d4f11SHannes Reinecke "at line %d\n", 2180229d4f11SHannes Reinecke pg_id, state, num); 2181229d4f11SHannes Reinecke break; 2182229d4f11SHannes Reinecke } 2183229d4f11SHannes Reinecke pg++; 2184229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2185229d4f11SHannes Reinecke if (ptr) 2186229d4f11SHannes Reinecke ptr++; 2187229d4f11SHannes Reinecke else 2188229d4f11SHannes Reinecke break; 2189229d4f11SHannes Reinecke } 2190229d4f11SHannes Reinecke if (pg_num == -1) 2191229d4f11SHannes Reinecke pg_num = pg; 2192229d4f11SHannes Reinecke else if (pg != pg_num) { 2193229d4f11SHannes Reinecke pr_err("Only %d from %d port groups definitions " 2194229d4f11SHannes Reinecke "at line %d\n", pg, pg_num, num); 2195229d4f11SHannes Reinecke ret = -EINVAL; 2196229d4f11SHannes Reinecke break; 2197229d4f11SHannes Reinecke } 2198229d4f11SHannes Reinecke num++; 2199229d4f11SHannes Reinecke } 2200229d4f11SHannes Reinecke out: 2201229d4f11SHannes Reinecke if (ret) { 2202229d4f11SHannes Reinecke core_alua_free_lba_map(&lba_list); 2203229d4f11SHannes Reinecke count = ret; 2204229d4f11SHannes Reinecke } else 2205229d4f11SHannes Reinecke core_alua_set_lba_map(dev, &lba_list, 2206229d4f11SHannes Reinecke segment_size, segment_mult); 2207f0a8afecSBart Van Assche kfree(orig); 2208229d4f11SHannes Reinecke return count; 2209229d4f11SHannes Reinecke } 2210229d4f11SHannes Reinecke 22112eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_dev_, info); 22122eafd729SChristoph Hellwig CONFIGFS_ATTR_WO(target_dev_, control); 22132eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, alias); 22142eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, udev_path); 22152eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, enable); 22162eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, alua_lu_gp); 22172eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, lba_map); 2218229d4f11SHannes Reinecke 221973112edcSNicholas Bellinger static struct configfs_attribute *target_core_dev_attrs[] = { 22202eafd729SChristoph Hellwig &target_dev_attr_info, 22212eafd729SChristoph Hellwig &target_dev_attr_control, 22222eafd729SChristoph Hellwig &target_dev_attr_alias, 22232eafd729SChristoph Hellwig &target_dev_attr_udev_path, 22242eafd729SChristoph Hellwig &target_dev_attr_enable, 22252eafd729SChristoph Hellwig &target_dev_attr_alua_lu_gp, 22262eafd729SChristoph Hellwig &target_dev_attr_lba_map, 2227c66ac9dbSNicholas Bellinger NULL, 2228c66ac9dbSNicholas Bellinger }; 2229c66ac9dbSNicholas Bellinger 2230c66ac9dbSNicholas Bellinger static void target_core_dev_release(struct config_item *item) 2231c66ac9dbSNicholas Bellinger { 22320fd97ccfSChristoph Hellwig struct config_group *dev_cg = to_config_group(item); 22330fd97ccfSChristoph Hellwig struct se_device *dev = 22340fd97ccfSChristoph Hellwig container_of(dev_cg, struct se_device, dev_group); 2235c66ac9dbSNicholas Bellinger 22360fd97ccfSChristoph Hellwig target_free_device(dev); 2237c66ac9dbSNicholas Bellinger } 2238c66ac9dbSNicholas Bellinger 2239c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_dev_item_ops = { 2240c66ac9dbSNicholas Bellinger .release = target_core_dev_release, 2241c66ac9dbSNicholas Bellinger }; 2242c66ac9dbSNicholas Bellinger 224373112edcSNicholas Bellinger TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs); 2244c66ac9dbSNicholas Bellinger 224573112edcSNicholas Bellinger /* End functions for struct config_item_type tb_dev_cit */ 2246c66ac9dbSNicholas Bellinger 2247c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gp_cit */ 2248c66ac9dbSNicholas Bellinger 22492eafd729SChristoph Hellwig static inline struct t10_alua_lu_gp *to_lu_gp(struct config_item *item) 2250c66ac9dbSNicholas Bellinger { 22512eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_alua_lu_gp, 22522eafd729SChristoph Hellwig lu_gp_group); 22532eafd729SChristoph Hellwig } 22542eafd729SChristoph Hellwig 22552eafd729SChristoph Hellwig static ssize_t target_lu_gp_lu_gp_id_show(struct config_item *item, char *page) 22562eafd729SChristoph Hellwig { 22572eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 22582eafd729SChristoph Hellwig 22596708bb27SAndy Grover if (!lu_gp->lu_gp_valid_id) 2260c66ac9dbSNicholas Bellinger return 0; 2261c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", lu_gp->lu_gp_id); 2262c66ac9dbSNicholas Bellinger } 2263c66ac9dbSNicholas Bellinger 22642eafd729SChristoph Hellwig static ssize_t target_lu_gp_lu_gp_id_store(struct config_item *item, 22652eafd729SChristoph Hellwig const char *page, size_t count) 2266c66ac9dbSNicholas Bellinger { 22672eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 2268c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = &lu_gp->lu_gp_group; 2269c66ac9dbSNicholas Bellinger unsigned long lu_gp_id; 2270c66ac9dbSNicholas Bellinger int ret; 2271c66ac9dbSNicholas Bellinger 227257103d7fSJingoo Han ret = kstrtoul(page, 0, &lu_gp_id); 2273c66ac9dbSNicholas Bellinger if (ret < 0) { 227457103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 2275c66ac9dbSNicholas Bellinger " lu_gp_id\n", ret); 227657103d7fSJingoo Han return ret; 2277c66ac9dbSNicholas Bellinger } 2278c66ac9dbSNicholas Bellinger if (lu_gp_id > 0x0000ffff) { 22796708bb27SAndy Grover pr_err("ALUA lu_gp_id: %lu exceeds maximum:" 2280c66ac9dbSNicholas Bellinger " 0x0000ffff\n", lu_gp_id); 2281c66ac9dbSNicholas Bellinger return -EINVAL; 2282c66ac9dbSNicholas Bellinger } 2283c66ac9dbSNicholas Bellinger 2284c66ac9dbSNicholas Bellinger ret = core_alua_set_lu_gp_id(lu_gp, (u16)lu_gp_id); 2285c66ac9dbSNicholas Bellinger if (ret < 0) 2286c66ac9dbSNicholas Bellinger return -EINVAL; 2287c66ac9dbSNicholas Bellinger 22886708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set ALUA Logical Unit" 2289c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s to ID: %hu\n", 2290c66ac9dbSNicholas Bellinger config_item_name(&alua_lu_gp_cg->cg_item), 2291c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 2292c66ac9dbSNicholas Bellinger 2293c66ac9dbSNicholas Bellinger return count; 2294c66ac9dbSNicholas Bellinger } 2295c66ac9dbSNicholas Bellinger 22962eafd729SChristoph Hellwig static ssize_t target_lu_gp_members_show(struct config_item *item, char *page) 2297c66ac9dbSNicholas Bellinger { 22982eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 2299c66ac9dbSNicholas Bellinger struct se_device *dev; 2300c66ac9dbSNicholas Bellinger struct se_hba *hba; 2301c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 2302c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2303c66ac9dbSNicholas Bellinger unsigned char buf[LU_GROUP_NAME_BUF]; 2304c66ac9dbSNicholas Bellinger 2305c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 2306c66ac9dbSNicholas Bellinger 2307c66ac9dbSNicholas Bellinger spin_lock(&lu_gp->lu_gp_lock); 2308c66ac9dbSNicholas Bellinger list_for_each_entry(lu_gp_mem, &lu_gp->lu_gp_mem_list, lu_gp_mem_list) { 2309c66ac9dbSNicholas Bellinger dev = lu_gp_mem->lu_gp_mem_dev; 23100fd97ccfSChristoph Hellwig hba = dev->se_hba; 2311c66ac9dbSNicholas Bellinger 2312c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, LU_GROUP_NAME_BUF, "%s/%s\n", 2313c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 23140fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item)); 2315c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2316c66ac9dbSNicholas Bellinger 2317c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 23186708bb27SAndy Grover pr_warn("Ran out of lu_gp_show_attr" 2319c66ac9dbSNicholas Bellinger "_members buffer\n"); 2320c66ac9dbSNicholas Bellinger break; 2321c66ac9dbSNicholas Bellinger } 2322c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2323c66ac9dbSNicholas Bellinger len += cur_len; 2324c66ac9dbSNicholas Bellinger } 2325c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp->lu_gp_lock); 2326c66ac9dbSNicholas Bellinger 2327c66ac9dbSNicholas Bellinger return len; 2328c66ac9dbSNicholas Bellinger } 2329c66ac9dbSNicholas Bellinger 23302eafd729SChristoph Hellwig CONFIGFS_ATTR(target_lu_gp_, lu_gp_id); 23312eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_lu_gp_, members); 2332c66ac9dbSNicholas Bellinger 2333c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_lu_gp_attrs[] = { 23342eafd729SChristoph Hellwig &target_lu_gp_attr_lu_gp_id, 23352eafd729SChristoph Hellwig &target_lu_gp_attr_members, 2336c66ac9dbSNicholas Bellinger NULL, 2337c66ac9dbSNicholas Bellinger }; 2338c66ac9dbSNicholas Bellinger 23391f6fe7cbSNicholas Bellinger static void target_core_alua_lu_gp_release(struct config_item *item) 23401f6fe7cbSNicholas Bellinger { 23411f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 23421f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 23431f6fe7cbSNicholas Bellinger 23441f6fe7cbSNicholas Bellinger core_alua_free_lu_gp(lu_gp); 23451f6fe7cbSNicholas Bellinger } 23461f6fe7cbSNicholas Bellinger 2347c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_lu_gp_ops = { 23481f6fe7cbSNicholas Bellinger .release = target_core_alua_lu_gp_release, 2349c66ac9dbSNicholas Bellinger }; 2350c66ac9dbSNicholas Bellinger 2351c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gp_cit = { 2352c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_lu_gp_ops, 2353c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_lu_gp_attrs, 2354c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2355c66ac9dbSNicholas Bellinger }; 2356c66ac9dbSNicholas Bellinger 2357c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gp_cit */ 2358c66ac9dbSNicholas Bellinger 2359c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gps_cit */ 2360c66ac9dbSNicholas Bellinger 2361c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_lu_gp( 2362c66ac9dbSNicholas Bellinger struct config_group *group, 2363c66ac9dbSNicholas Bellinger const char *name) 2364c66ac9dbSNicholas Bellinger { 2365c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 2366c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = NULL; 2367c66ac9dbSNicholas Bellinger struct config_item *alua_lu_gp_ci = NULL; 2368c66ac9dbSNicholas Bellinger 2369c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp(name, 0); 2370c66ac9dbSNicholas Bellinger if (IS_ERR(lu_gp)) 2371c66ac9dbSNicholas Bellinger return NULL; 2372c66ac9dbSNicholas Bellinger 2373c66ac9dbSNicholas Bellinger alua_lu_gp_cg = &lu_gp->lu_gp_group; 2374c66ac9dbSNicholas Bellinger alua_lu_gp_ci = &alua_lu_gp_cg->cg_item; 2375c66ac9dbSNicholas Bellinger 2376c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_lu_gp_cg, name, 2377c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 2378c66ac9dbSNicholas Bellinger 23796708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Allocated ALUA Logical Unit" 2380c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s\n", 2381c66ac9dbSNicholas Bellinger config_item_name(alua_lu_gp_ci)); 2382c66ac9dbSNicholas Bellinger 2383c66ac9dbSNicholas Bellinger return alua_lu_gp_cg; 2384c66ac9dbSNicholas Bellinger 2385c66ac9dbSNicholas Bellinger } 2386c66ac9dbSNicholas Bellinger 2387c66ac9dbSNicholas Bellinger static void target_core_alua_drop_lu_gp( 2388c66ac9dbSNicholas Bellinger struct config_group *group, 2389c66ac9dbSNicholas Bellinger struct config_item *item) 2390c66ac9dbSNicholas Bellinger { 2391c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 2392c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 2393c66ac9dbSNicholas Bellinger 23946708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing ALUA Logical Unit" 2395c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s, ID: %hu\n", 2396c66ac9dbSNicholas Bellinger config_item_name(item), lu_gp->lu_gp_id); 23971f6fe7cbSNicholas Bellinger /* 23981f6fe7cbSNicholas Bellinger * core_alua_free_lu_gp() is called from target_core_alua_lu_gp_ops->release() 23991f6fe7cbSNicholas Bellinger * -> target_core_alua_lu_gp_release() 24001f6fe7cbSNicholas Bellinger */ 2401c66ac9dbSNicholas Bellinger config_item_put(item); 2402c66ac9dbSNicholas Bellinger } 2403c66ac9dbSNicholas Bellinger 2404c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_lu_gps_group_ops = { 2405c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_lu_gp, 2406c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_lu_gp, 2407c66ac9dbSNicholas Bellinger }; 2408c66ac9dbSNicholas Bellinger 2409c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gps_cit = { 2410c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2411c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_alua_lu_gps_group_ops, 2412c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2413c66ac9dbSNicholas Bellinger }; 2414c66ac9dbSNicholas Bellinger 2415c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gps_cit */ 2416c66ac9dbSNicholas Bellinger 2417c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2418c66ac9dbSNicholas Bellinger 24192eafd729SChristoph Hellwig static inline struct t10_alua_tg_pt_gp *to_tg_pt_gp(struct config_item *item) 24202eafd729SChristoph Hellwig { 24212eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_alua_tg_pt_gp, 24222eafd729SChristoph Hellwig tg_pt_gp_group); 24232eafd729SChristoph Hellwig } 2424c66ac9dbSNicholas Bellinger 24252eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item, 2426c66ac9dbSNicholas Bellinger char *page) 2427c66ac9dbSNicholas Bellinger { 2428c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", 2429d19c4643SMike Christie to_tg_pt_gp(item)->tg_pt_gp_alua_access_state); 2430c66ac9dbSNicholas Bellinger } 2431c66ac9dbSNicholas Bellinger 24322eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item, 24332eafd729SChristoph Hellwig const char *page, size_t count) 2434c66ac9dbSNicholas Bellinger { 24352eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 24360fd97ccfSChristoph Hellwig struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; 2437c66ac9dbSNicholas Bellinger unsigned long tmp; 2438c66ac9dbSNicholas Bellinger int new_state, ret; 2439c66ac9dbSNicholas Bellinger 24406708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) { 2441125d0119SHannes Reinecke pr_err("Unable to do implicit ALUA on non valid" 2442c66ac9dbSNicholas Bellinger " tg_pt_gp ID: %hu\n", tg_pt_gp->tg_pt_gp_valid_id); 2443c66ac9dbSNicholas Bellinger return -EINVAL; 2444c66ac9dbSNicholas Bellinger } 2445f1453773SNicholas Bellinger if (!(dev->dev_flags & DF_CONFIGURED)) { 2446f1453773SNicholas Bellinger pr_err("Unable to set alua_access_state while device is" 2447f1453773SNicholas Bellinger " not configured\n"); 2448f1453773SNicholas Bellinger return -ENODEV; 2449f1453773SNicholas Bellinger } 2450c66ac9dbSNicholas Bellinger 245157103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2452c66ac9dbSNicholas Bellinger if (ret < 0) { 24536708bb27SAndy Grover pr_err("Unable to extract new ALUA access state from" 2454c66ac9dbSNicholas Bellinger " %s\n", page); 245557103d7fSJingoo Han return ret; 2456c66ac9dbSNicholas Bellinger } 2457c66ac9dbSNicholas Bellinger new_state = (int)tmp; 2458c66ac9dbSNicholas Bellinger 2459125d0119SHannes Reinecke if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)) { 2460125d0119SHannes Reinecke pr_err("Unable to process implicit configfs ALUA" 2461125d0119SHannes Reinecke " transition while TPGS_IMPLICIT_ALUA is disabled\n"); 2462c66ac9dbSNicholas Bellinger return -EINVAL; 2463c66ac9dbSNicholas Bellinger } 2464c66094bfSHannes Reinecke if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA && 2465c66094bfSHannes Reinecke new_state == ALUA_ACCESS_STATE_LBA_DEPENDENT) { 2466c66094bfSHannes Reinecke /* LBA DEPENDENT is only allowed with implicit ALUA */ 2467c66094bfSHannes Reinecke pr_err("Unable to process implicit configfs ALUA transition" 2468c66094bfSHannes Reinecke " while explicit ALUA management is enabled\n"); 2469c66094bfSHannes Reinecke return -EINVAL; 2470c66094bfSHannes Reinecke } 2471c66ac9dbSNicholas Bellinger 24720fd97ccfSChristoph Hellwig ret = core_alua_do_port_transition(tg_pt_gp, dev, 2473c66ac9dbSNicholas Bellinger NULL, NULL, new_state, 0); 2474c66ac9dbSNicholas Bellinger return (!ret) ? count : -EINVAL; 2475c66ac9dbSNicholas Bellinger } 2476c66ac9dbSNicholas Bellinger 24772eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_status_show(struct config_item *item, 2478c66ac9dbSNicholas Bellinger char *page) 2479c66ac9dbSNicholas Bellinger { 24802eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2481c66ac9dbSNicholas Bellinger return sprintf(page, "%s\n", 2482c66ac9dbSNicholas Bellinger core_alua_dump_status(tg_pt_gp->tg_pt_gp_alua_access_status)); 2483c66ac9dbSNicholas Bellinger } 2484c66ac9dbSNicholas Bellinger 24852eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_status_store( 24862eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 2487c66ac9dbSNicholas Bellinger { 24882eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2489c66ac9dbSNicholas Bellinger unsigned long tmp; 2490c66ac9dbSNicholas Bellinger int new_status, ret; 2491c66ac9dbSNicholas Bellinger 24926708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) { 24936708bb27SAndy Grover pr_err("Unable to do set ALUA access status on non" 2494c66ac9dbSNicholas Bellinger " valid tg_pt_gp ID: %hu\n", 2495c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_valid_id); 2496c66ac9dbSNicholas Bellinger return -EINVAL; 2497c66ac9dbSNicholas Bellinger } 2498c66ac9dbSNicholas Bellinger 249957103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2500c66ac9dbSNicholas Bellinger if (ret < 0) { 25016708bb27SAndy Grover pr_err("Unable to extract new ALUA access status" 2502c66ac9dbSNicholas Bellinger " from %s\n", page); 250357103d7fSJingoo Han return ret; 2504c66ac9dbSNicholas Bellinger } 2505c66ac9dbSNicholas Bellinger new_status = (int)tmp; 2506c66ac9dbSNicholas Bellinger 2507c66ac9dbSNicholas Bellinger if ((new_status != ALUA_STATUS_NONE) && 2508125d0119SHannes Reinecke (new_status != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) && 2509125d0119SHannes Reinecke (new_status != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) { 25106708bb27SAndy Grover pr_err("Illegal ALUA access status: 0x%02x\n", 2511c66ac9dbSNicholas Bellinger new_status); 2512c66ac9dbSNicholas Bellinger return -EINVAL; 2513c66ac9dbSNicholas Bellinger } 2514c66ac9dbSNicholas Bellinger 2515c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_alua_access_status = new_status; 2516c66ac9dbSNicholas Bellinger return count; 2517c66ac9dbSNicholas Bellinger } 2518c66ac9dbSNicholas Bellinger 25192eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_type_show(struct config_item *item, 2520c66ac9dbSNicholas Bellinger char *page) 2521c66ac9dbSNicholas Bellinger { 25222eafd729SChristoph Hellwig return core_alua_show_access_type(to_tg_pt_gp(item), page); 2523c66ac9dbSNicholas Bellinger } 2524c66ac9dbSNicholas Bellinger 25252eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_type_store(struct config_item *item, 25262eafd729SChristoph Hellwig const char *page, size_t count) 2527c66ac9dbSNicholas Bellinger { 25282eafd729SChristoph Hellwig return core_alua_store_access_type(to_tg_pt_gp(item), page, count); 2529c66ac9dbSNicholas Bellinger } 2530c66ac9dbSNicholas Bellinger 25312eafd729SChristoph Hellwig #define ALUA_SUPPORTED_STATE_ATTR(_name, _bit) \ 25322eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_support_##_name##_show( \ 25332eafd729SChristoph Hellwig struct config_item *item, char *p) \ 2534b0a382c5SHannes Reinecke { \ 25352eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ 25362eafd729SChristoph Hellwig return sprintf(p, "%d\n", \ 25372eafd729SChristoph Hellwig !!(t->tg_pt_gp_alua_supported_states & _bit)); \ 25382eafd729SChristoph Hellwig } \ 25392eafd729SChristoph Hellwig \ 25402eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_support_##_name##_store( \ 25412eafd729SChristoph Hellwig struct config_item *item, const char *p, size_t c) \ 2542b0a382c5SHannes Reinecke { \ 25432eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ 2544b0a382c5SHannes Reinecke unsigned long tmp; \ 2545b0a382c5SHannes Reinecke int ret; \ 2546b0a382c5SHannes Reinecke \ 2547b0a382c5SHannes Reinecke if (!t->tg_pt_gp_valid_id) { \ 2548c0dcafd8SHannes Reinecke pr_err("Unable to do set " #_name " ALUA state on non" \ 2549b0a382c5SHannes Reinecke " valid tg_pt_gp ID: %hu\n", \ 2550b0a382c5SHannes Reinecke t->tg_pt_gp_valid_id); \ 2551b0a382c5SHannes Reinecke return -EINVAL; \ 2552b0a382c5SHannes Reinecke } \ 2553b0a382c5SHannes Reinecke \ 2554b0a382c5SHannes Reinecke ret = kstrtoul(p, 0, &tmp); \ 2555b0a382c5SHannes Reinecke if (ret < 0) { \ 2556b0a382c5SHannes Reinecke pr_err("Invalid value '%s', must be '0' or '1'\n", p); \ 2557b0a382c5SHannes Reinecke return -EINVAL; \ 2558b0a382c5SHannes Reinecke } \ 2559b0a382c5SHannes Reinecke if (tmp > 1) { \ 2560b0a382c5SHannes Reinecke pr_err("Invalid value '%ld', must be '0' or '1'\n", tmp); \ 2561b0a382c5SHannes Reinecke return -EINVAL; \ 2562b0a382c5SHannes Reinecke } \ 25631f0b030cSSebastian Herbszt if (tmp) \ 25642eafd729SChristoph Hellwig t->tg_pt_gp_alua_supported_states |= _bit; \ 2565b0a382c5SHannes Reinecke else \ 25662eafd729SChristoph Hellwig t->tg_pt_gp_alua_supported_states &= ~_bit; \ 2567b0a382c5SHannes Reinecke \ 2568b0a382c5SHannes Reinecke return c; \ 25696be526c4SHannes Reinecke } 25706be526c4SHannes Reinecke 25712eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(transitioning, ALUA_T_SUP); 25722eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(offline, ALUA_O_SUP); 25732eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(lba_dependent, ALUA_LBD_SUP); 25742eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(unavailable, ALUA_U_SUP); 25752eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(standby, ALUA_S_SUP); 25762eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(active_optimized, ALUA_AO_SUP); 25772eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(active_nonoptimized, ALUA_AN_SUP); 25786be526c4SHannes Reinecke 25792eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_write_metadata_show( 25802eafd729SChristoph Hellwig struct config_item *item, char *page) 2581c66ac9dbSNicholas Bellinger { 25822eafd729SChristoph Hellwig return sprintf(page, "%d\n", 25832eafd729SChristoph Hellwig to_tg_pt_gp(item)->tg_pt_gp_write_metadata); 2584c66ac9dbSNicholas Bellinger } 2585c66ac9dbSNicholas Bellinger 25862eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_write_metadata_store( 25872eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 2588c66ac9dbSNicholas Bellinger { 25892eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2590c66ac9dbSNicholas Bellinger unsigned long tmp; 2591c66ac9dbSNicholas Bellinger int ret; 2592c66ac9dbSNicholas Bellinger 259357103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2594c66ac9dbSNicholas Bellinger if (ret < 0) { 25956708bb27SAndy Grover pr_err("Unable to extract alua_write_metadata\n"); 259657103d7fSJingoo Han return ret; 2597c66ac9dbSNicholas Bellinger } 2598c66ac9dbSNicholas Bellinger 2599c66ac9dbSNicholas Bellinger if ((tmp != 0) && (tmp != 1)) { 26006708bb27SAndy Grover pr_err("Illegal value for alua_write_metadata:" 2601c66ac9dbSNicholas Bellinger " %lu\n", tmp); 2602c66ac9dbSNicholas Bellinger return -EINVAL; 2603c66ac9dbSNicholas Bellinger } 2604c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_write_metadata = (int)tmp; 2605c66ac9dbSNicholas Bellinger 2606c66ac9dbSNicholas Bellinger return count; 2607c66ac9dbSNicholas Bellinger } 2608c66ac9dbSNicholas Bellinger 26092eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_nonop_delay_msecs_show(struct config_item *item, 2610c66ac9dbSNicholas Bellinger char *page) 2611c66ac9dbSNicholas Bellinger { 26122eafd729SChristoph Hellwig return core_alua_show_nonop_delay_msecs(to_tg_pt_gp(item), page); 2613c66ac9dbSNicholas Bellinger } 2614c66ac9dbSNicholas Bellinger 26152eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_nonop_delay_msecs_store(struct config_item *item, 26162eafd729SChristoph Hellwig const char *page, size_t count) 2617c66ac9dbSNicholas Bellinger { 26182eafd729SChristoph Hellwig return core_alua_store_nonop_delay_msecs(to_tg_pt_gp(item), page, 26192eafd729SChristoph Hellwig count); 2620c66ac9dbSNicholas Bellinger } 2621c66ac9dbSNicholas Bellinger 26222eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_trans_delay_msecs_show(struct config_item *item, 2623c66ac9dbSNicholas Bellinger char *page) 2624c66ac9dbSNicholas Bellinger { 26252eafd729SChristoph Hellwig return core_alua_show_trans_delay_msecs(to_tg_pt_gp(item), page); 2626c66ac9dbSNicholas Bellinger } 2627c66ac9dbSNicholas Bellinger 26282eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_trans_delay_msecs_store(struct config_item *item, 26292eafd729SChristoph Hellwig const char *page, size_t count) 2630c66ac9dbSNicholas Bellinger { 26312eafd729SChristoph Hellwig return core_alua_store_trans_delay_msecs(to_tg_pt_gp(item), page, 26322eafd729SChristoph Hellwig count); 2633c66ac9dbSNicholas Bellinger } 2634c66ac9dbSNicholas Bellinger 26352eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_implicit_trans_secs_show( 26362eafd729SChristoph Hellwig struct config_item *item, char *page) 26372eafd729SChristoph Hellwig { 26382eafd729SChristoph Hellwig return core_alua_show_implicit_trans_secs(to_tg_pt_gp(item), page); 26392eafd729SChristoph Hellwig } 2640c66ac9dbSNicholas Bellinger 26412eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_implicit_trans_secs_store( 26422eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 26432eafd729SChristoph Hellwig { 26442eafd729SChristoph Hellwig return core_alua_store_implicit_trans_secs(to_tg_pt_gp(item), page, 26452eafd729SChristoph Hellwig count); 26462eafd729SChristoph Hellwig } 26472eafd729SChristoph Hellwig 26482eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_preferred_show(struct config_item *item, 26495b9a4d72SNicholas Bellinger char *page) 26505b9a4d72SNicholas Bellinger { 26512eafd729SChristoph Hellwig return core_alua_show_preferred_bit(to_tg_pt_gp(item), page); 26525b9a4d72SNicholas Bellinger } 26535b9a4d72SNicholas Bellinger 26542eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_preferred_store(struct config_item *item, 26552eafd729SChristoph Hellwig const char *page, size_t count) 26565b9a4d72SNicholas Bellinger { 26572eafd729SChristoph Hellwig return core_alua_store_preferred_bit(to_tg_pt_gp(item), page, count); 26585b9a4d72SNicholas Bellinger } 26595b9a4d72SNicholas Bellinger 26602eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_tg_pt_gp_id_show(struct config_item *item, 2661c66ac9dbSNicholas Bellinger char *page) 2662c66ac9dbSNicholas Bellinger { 26632eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2664c66ac9dbSNicholas Bellinger 26656708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) 2666c66ac9dbSNicholas Bellinger return 0; 2667c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", tg_pt_gp->tg_pt_gp_id); 2668c66ac9dbSNicholas Bellinger } 2669c66ac9dbSNicholas Bellinger 26702eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_tg_pt_gp_id_store(struct config_item *item, 26712eafd729SChristoph Hellwig const char *page, size_t count) 2672c66ac9dbSNicholas Bellinger { 26732eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2674c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2675c66ac9dbSNicholas Bellinger unsigned long tg_pt_gp_id; 2676c66ac9dbSNicholas Bellinger int ret; 2677c66ac9dbSNicholas Bellinger 267857103d7fSJingoo Han ret = kstrtoul(page, 0, &tg_pt_gp_id); 2679c66ac9dbSNicholas Bellinger if (ret < 0) { 26803d035237SHannes Reinecke pr_err("ALUA tg_pt_gp_id: invalid value '%s' for tg_pt_gp_id\n", 26813d035237SHannes Reinecke page); 268257103d7fSJingoo Han return ret; 2683c66ac9dbSNicholas Bellinger } 2684c66ac9dbSNicholas Bellinger if (tg_pt_gp_id > 0x0000ffff) { 26853d035237SHannes Reinecke pr_err("ALUA tg_pt_gp_id: %lu exceeds maximum: 0x0000ffff\n", 26863d035237SHannes Reinecke tg_pt_gp_id); 2687c66ac9dbSNicholas Bellinger return -EINVAL; 2688c66ac9dbSNicholas Bellinger } 2689c66ac9dbSNicholas Bellinger 2690c66ac9dbSNicholas Bellinger ret = core_alua_set_tg_pt_gp_id(tg_pt_gp, (u16)tg_pt_gp_id); 2691c66ac9dbSNicholas Bellinger if (ret < 0) 2692c66ac9dbSNicholas Bellinger return -EINVAL; 2693c66ac9dbSNicholas Bellinger 26946708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set ALUA Target Port Group: " 2695c66ac9dbSNicholas Bellinger "core/alua/tg_pt_gps/%s to ID: %hu\n", 2696c66ac9dbSNicholas Bellinger config_item_name(&alua_tg_pt_gp_cg->cg_item), 2697c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_id); 2698c66ac9dbSNicholas Bellinger 2699c66ac9dbSNicholas Bellinger return count; 2700c66ac9dbSNicholas Bellinger } 2701c66ac9dbSNicholas Bellinger 27022eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_members_show(struct config_item *item, 2703c66ac9dbSNicholas Bellinger char *page) 2704c66ac9dbSNicholas Bellinger { 27052eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2706c66ac9dbSNicholas Bellinger struct se_lun *lun; 2707c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2708c66ac9dbSNicholas Bellinger unsigned char buf[TG_PT_GROUP_NAME_BUF]; 2709c66ac9dbSNicholas Bellinger 2710c66ac9dbSNicholas Bellinger memset(buf, 0, TG_PT_GROUP_NAME_BUF); 2711c66ac9dbSNicholas Bellinger 2712c66ac9dbSNicholas Bellinger spin_lock(&tg_pt_gp->tg_pt_gp_lock); 2713adf653f9SChristoph Hellwig list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list, 2714adf653f9SChristoph Hellwig lun_tg_pt_gp_link) { 2715adf653f9SChristoph Hellwig struct se_portal_group *tpg = lun->lun_tpg; 2716c66ac9dbSNicholas Bellinger 2717c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu" 2718e3d6f909SAndy Grover "/%s\n", tpg->se_tpg_tfo->get_fabric_name(), 2719e3d6f909SAndy Grover tpg->se_tpg_tfo->tpg_get_wwn(tpg), 2720e3d6f909SAndy Grover tpg->se_tpg_tfo->tpg_get_tag(tpg), 2721c66ac9dbSNicholas Bellinger config_item_name(&lun->lun_group.cg_item)); 2722c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2723c66ac9dbSNicholas Bellinger 2724c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 27256708bb27SAndy Grover pr_warn("Ran out of lu_gp_show_attr" 2726c66ac9dbSNicholas Bellinger "_members buffer\n"); 2727c66ac9dbSNicholas Bellinger break; 2728c66ac9dbSNicholas Bellinger } 2729c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2730c66ac9dbSNicholas Bellinger len += cur_len; 2731c66ac9dbSNicholas Bellinger } 2732c66ac9dbSNicholas Bellinger spin_unlock(&tg_pt_gp->tg_pt_gp_lock); 2733c66ac9dbSNicholas Bellinger 2734c66ac9dbSNicholas Bellinger return len; 2735c66ac9dbSNicholas Bellinger } 2736c66ac9dbSNicholas Bellinger 27372eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_state); 27382eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_status); 27392eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_type); 27402eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_transitioning); 27412eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_offline); 27422eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_lba_dependent); 27432eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_unavailable); 27442eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_standby); 27452eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_optimized); 27462eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_nonoptimized); 27472eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_write_metadata); 27482eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, nonop_delay_msecs); 27492eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, trans_delay_msecs); 27502eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, implicit_trans_secs); 27512eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, preferred); 27522eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, tg_pt_gp_id); 27532eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_tg_pt_gp_, members); 2754c66ac9dbSNicholas Bellinger 2755c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = { 27562eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_state, 27572eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_status, 27582eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_type, 27592eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_transitioning, 27602eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_offline, 27612eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_lba_dependent, 27622eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_unavailable, 27632eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_standby, 27642eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_active_nonoptimized, 27652eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_active_optimized, 27662eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_write_metadata, 27672eafd729SChristoph Hellwig &target_tg_pt_gp_attr_nonop_delay_msecs, 27682eafd729SChristoph Hellwig &target_tg_pt_gp_attr_trans_delay_msecs, 27692eafd729SChristoph Hellwig &target_tg_pt_gp_attr_implicit_trans_secs, 27702eafd729SChristoph Hellwig &target_tg_pt_gp_attr_preferred, 27712eafd729SChristoph Hellwig &target_tg_pt_gp_attr_tg_pt_gp_id, 27722eafd729SChristoph Hellwig &target_tg_pt_gp_attr_members, 2773c66ac9dbSNicholas Bellinger NULL, 2774c66ac9dbSNicholas Bellinger }; 2775c66ac9dbSNicholas Bellinger 27761f6fe7cbSNicholas Bellinger static void target_core_alua_tg_pt_gp_release(struct config_item *item) 27771f6fe7cbSNicholas Bellinger { 27781f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 27791f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 27801f6fe7cbSNicholas Bellinger 27811f6fe7cbSNicholas Bellinger core_alua_free_tg_pt_gp(tg_pt_gp); 27821f6fe7cbSNicholas Bellinger } 27831f6fe7cbSNicholas Bellinger 2784c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = { 27851f6fe7cbSNicholas Bellinger .release = target_core_alua_tg_pt_gp_release, 2786c66ac9dbSNicholas Bellinger }; 2787c66ac9dbSNicholas Bellinger 2788c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_tg_pt_gp_cit = { 2789c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_tg_pt_gp_ops, 2790c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_tg_pt_gp_attrs, 2791c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2792c66ac9dbSNicholas Bellinger }; 2793c66ac9dbSNicholas Bellinger 2794c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2795c66ac9dbSNicholas Bellinger 279672aca57bSNicholas Bellinger /* Start functions for struct config_item_type tb_alua_tg_pt_gps_cit */ 2797c66ac9dbSNicholas Bellinger 2798c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_tg_pt_gp( 2799c66ac9dbSNicholas Bellinger struct config_group *group, 2800c66ac9dbSNicholas Bellinger const char *name) 2801c66ac9dbSNicholas Bellinger { 2802c66ac9dbSNicholas Bellinger struct t10_alua *alua = container_of(group, struct t10_alua, 2803c66ac9dbSNicholas Bellinger alua_tg_pt_gps_group); 2804c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2805c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = NULL; 2806c66ac9dbSNicholas Bellinger struct config_item *alua_tg_pt_gp_ci = NULL; 2807c66ac9dbSNicholas Bellinger 28080fd97ccfSChristoph Hellwig tg_pt_gp = core_alua_allocate_tg_pt_gp(alua->t10_dev, name, 0); 28096708bb27SAndy Grover if (!tg_pt_gp) 2810c66ac9dbSNicholas Bellinger return NULL; 2811c66ac9dbSNicholas Bellinger 2812c66ac9dbSNicholas Bellinger alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2813c66ac9dbSNicholas Bellinger alua_tg_pt_gp_ci = &alua_tg_pt_gp_cg->cg_item; 2814c66ac9dbSNicholas Bellinger 2815c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_tg_pt_gp_cg, name, 2816c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_cit); 2817c66ac9dbSNicholas Bellinger 28186708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Allocated ALUA Target Port" 2819c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s\n", 2820c66ac9dbSNicholas Bellinger config_item_name(alua_tg_pt_gp_ci)); 2821c66ac9dbSNicholas Bellinger 2822c66ac9dbSNicholas Bellinger return alua_tg_pt_gp_cg; 2823c66ac9dbSNicholas Bellinger } 2824c66ac9dbSNicholas Bellinger 2825c66ac9dbSNicholas Bellinger static void target_core_alua_drop_tg_pt_gp( 2826c66ac9dbSNicholas Bellinger struct config_group *group, 2827c66ac9dbSNicholas Bellinger struct config_item *item) 2828c66ac9dbSNicholas Bellinger { 2829c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 2830c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 2831c66ac9dbSNicholas Bellinger 28326708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing ALUA Target Port" 2833c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s, ID: %hu\n", 2834c66ac9dbSNicholas Bellinger config_item_name(item), tg_pt_gp->tg_pt_gp_id); 28351f6fe7cbSNicholas Bellinger /* 28361f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from target_core_alua_tg_pt_gp_ops->release() 28371f6fe7cbSNicholas Bellinger * -> target_core_alua_tg_pt_gp_release(). 28381f6fe7cbSNicholas Bellinger */ 2839c66ac9dbSNicholas Bellinger config_item_put(item); 2840c66ac9dbSNicholas Bellinger } 2841c66ac9dbSNicholas Bellinger 2842c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_tg_pt_gps_group_ops = { 2843c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_tg_pt_gp, 2844c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_tg_pt_gp, 2845c66ac9dbSNicholas Bellinger }; 2846c66ac9dbSNicholas Bellinger 284772aca57bSNicholas Bellinger TB_CIT_SETUP(dev_alua_tg_pt_gps, NULL, &target_core_alua_tg_pt_gps_group_ops, NULL); 2848c66ac9dbSNicholas Bellinger 284972aca57bSNicholas Bellinger /* End functions for struct config_item_type tb_alua_tg_pt_gps_cit */ 2850c66ac9dbSNicholas Bellinger 2851c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_cit */ 2852c66ac9dbSNicholas Bellinger 2853c66ac9dbSNicholas Bellinger /* 2854c66ac9dbSNicholas Bellinger * target_core_alua_cit is a ConfigFS group that lives under 2855c66ac9dbSNicholas Bellinger * /sys/kernel/config/target/core/alua. There are default groups 2856c66ac9dbSNicholas Bellinger * core/alua/lu_gps and core/alua/tg_pt_gps that are attached to 2857c66ac9dbSNicholas Bellinger * target_core_alua_cit in target_core_init_configfs() below. 2858c66ac9dbSNicholas Bellinger */ 2859c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_cit = { 2860c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2861c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 2862c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2863c66ac9dbSNicholas Bellinger }; 2864c66ac9dbSNicholas Bellinger 2865c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_cit */ 2866c66ac9dbSNicholas Bellinger 2867d23ab570SNicholas Bellinger /* Start functions for struct config_item_type tb_dev_stat_cit */ 286812d23384SNicholas Bellinger 286912d23384SNicholas Bellinger static struct config_group *target_core_stat_mkdir( 287012d23384SNicholas Bellinger struct config_group *group, 287112d23384SNicholas Bellinger const char *name) 287212d23384SNicholas Bellinger { 287312d23384SNicholas Bellinger return ERR_PTR(-ENOSYS); 287412d23384SNicholas Bellinger } 287512d23384SNicholas Bellinger 287612d23384SNicholas Bellinger static void target_core_stat_rmdir( 287712d23384SNicholas Bellinger struct config_group *group, 287812d23384SNicholas Bellinger struct config_item *item) 287912d23384SNicholas Bellinger { 288012d23384SNicholas Bellinger return; 288112d23384SNicholas Bellinger } 288212d23384SNicholas Bellinger 288312d23384SNicholas Bellinger static struct configfs_group_operations target_core_stat_group_ops = { 288412d23384SNicholas Bellinger .make_group = &target_core_stat_mkdir, 288512d23384SNicholas Bellinger .drop_item = &target_core_stat_rmdir, 288612d23384SNicholas Bellinger }; 288712d23384SNicholas Bellinger 2888d23ab570SNicholas Bellinger TB_CIT_SETUP(dev_stat, NULL, &target_core_stat_group_ops, NULL); 288912d23384SNicholas Bellinger 2890d23ab570SNicholas Bellinger /* End functions for struct config_item_type tb_dev_stat_cit */ 289112d23384SNicholas Bellinger 2892c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_hba_cit */ 2893c66ac9dbSNicholas Bellinger 2894c66ac9dbSNicholas Bellinger static struct config_group *target_core_make_subdev( 2895c66ac9dbSNicholas Bellinger struct config_group *group, 2896c66ac9dbSNicholas Bellinger const char *name) 2897c66ac9dbSNicholas Bellinger { 2898c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2899c66ac9dbSNicholas Bellinger struct config_item *hba_ci = &group->cg_item; 2900c66ac9dbSNicholas Bellinger struct se_hba *hba = item_to_hba(hba_ci); 29010a06d430SChristoph Hellwig struct target_backend *tb = hba->backend; 29020fd97ccfSChristoph Hellwig struct se_device *dev; 290312d23384SNicholas Bellinger int errno = -ENOMEM, ret; 2904c66ac9dbSNicholas Bellinger 290512d23384SNicholas Bellinger ret = mutex_lock_interruptible(&hba->hba_access_mutex); 290612d23384SNicholas Bellinger if (ret) 290712d23384SNicholas Bellinger return ERR_PTR(ret); 2908c66ac9dbSNicholas Bellinger 29090fd97ccfSChristoph Hellwig dev = target_alloc_device(hba, name); 29100fd97ccfSChristoph Hellwig if (!dev) 29110fd97ccfSChristoph Hellwig goto out_unlock; 2912c66ac9dbSNicholas Bellinger 29131ae1602dSChristoph Hellwig config_group_init_type_name(&dev->dev_group, name, &tb->tb_dev_cit); 2914c66ac9dbSNicholas Bellinger 29150fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_attrib.da_group, "attrib", 29160a06d430SChristoph Hellwig &tb->tb_dev_attrib_cit); 29171ae1602dSChristoph Hellwig configfs_add_default_group(&dev->dev_attrib.da_group, &dev->dev_group); 29181ae1602dSChristoph Hellwig 29190fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_pr_group, "pr", 29200a06d430SChristoph Hellwig &tb->tb_dev_pr_cit); 29211ae1602dSChristoph Hellwig configfs_add_default_group(&dev->dev_pr_group, &dev->dev_group); 29221ae1602dSChristoph Hellwig 29230fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->t10_wwn.t10_wwn_group, "wwn", 29240a06d430SChristoph Hellwig &tb->tb_dev_wwn_cit); 29251ae1602dSChristoph Hellwig configfs_add_default_group(&dev->t10_wwn.t10_wwn_group, 29261ae1602dSChristoph Hellwig &dev->dev_group); 29271ae1602dSChristoph Hellwig 29280fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->t10_alua.alua_tg_pt_gps_group, 29290a06d430SChristoph Hellwig "alua", &tb->tb_dev_alua_tg_pt_gps_cit); 29301ae1602dSChristoph Hellwig configfs_add_default_group(&dev->t10_alua.alua_tg_pt_gps_group, 29311ae1602dSChristoph Hellwig &dev->dev_group); 29321ae1602dSChristoph Hellwig 29330fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_stat_grps.stat_group, 29340a06d430SChristoph Hellwig "statistics", &tb->tb_dev_stat_cit); 29351ae1602dSChristoph Hellwig configfs_add_default_group(&dev->dev_stat_grps.stat_group, 29361ae1602dSChristoph Hellwig &dev->dev_group); 293712d23384SNicholas Bellinger 2938c66ac9dbSNicholas Bellinger /* 293912d23384SNicholas Bellinger * Add core/$HBA/$DEV/alua/default_tg_pt_gp 2940c66ac9dbSNicholas Bellinger */ 29410fd97ccfSChristoph Hellwig tg_pt_gp = core_alua_allocate_tg_pt_gp(dev, "default_tg_pt_gp", 1); 29426708bb27SAndy Grover if (!tg_pt_gp) 29431ae1602dSChristoph Hellwig goto out_free_device; 29440fd97ccfSChristoph Hellwig dev->t10_alua.default_tg_pt_gp = tg_pt_gp; 2945c66ac9dbSNicholas Bellinger 2946c66ac9dbSNicholas Bellinger config_group_init_type_name(&tg_pt_gp->tg_pt_gp_group, 2947c66ac9dbSNicholas Bellinger "default_tg_pt_gp", &target_core_alua_tg_pt_gp_cit); 29481ae1602dSChristoph Hellwig configfs_add_default_group(&tg_pt_gp->tg_pt_gp_group, 29491ae1602dSChristoph Hellwig &dev->t10_alua.alua_tg_pt_gps_group); 29501ae1602dSChristoph Hellwig 295112d23384SNicholas Bellinger /* 295212d23384SNicholas Bellinger * Add core/$HBA/$DEV/statistics/ default groups 295312d23384SNicholas Bellinger */ 29540fd97ccfSChristoph Hellwig target_stat_setup_dev_default_groups(dev); 2955c66ac9dbSNicholas Bellinger 2956c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 29571ae1602dSChristoph Hellwig return &dev->dev_group; 29580fd97ccfSChristoph Hellwig 29590fd97ccfSChristoph Hellwig out_free_device: 29600fd97ccfSChristoph Hellwig target_free_device(dev); 29610fd97ccfSChristoph Hellwig out_unlock: 2962c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 296312d23384SNicholas Bellinger return ERR_PTR(errno); 2964c66ac9dbSNicholas Bellinger } 2965c66ac9dbSNicholas Bellinger 2966c66ac9dbSNicholas Bellinger static void target_core_drop_subdev( 2967c66ac9dbSNicholas Bellinger struct config_group *group, 2968c66ac9dbSNicholas Bellinger struct config_item *item) 2969c66ac9dbSNicholas Bellinger { 29700fd97ccfSChristoph Hellwig struct config_group *dev_cg = to_config_group(item); 29710fd97ccfSChristoph Hellwig struct se_device *dev = 29720fd97ccfSChristoph Hellwig container_of(dev_cg, struct se_device, dev_group); 2973c66ac9dbSNicholas Bellinger struct se_hba *hba; 2974c66ac9dbSNicholas Bellinger 29750fd97ccfSChristoph Hellwig hba = item_to_hba(&dev->se_hba->hba_group.cg_item); 2976c66ac9dbSNicholas Bellinger 29771f6fe7cbSNicholas Bellinger mutex_lock(&hba->hba_access_mutex); 2978c66ac9dbSNicholas Bellinger 29791ae1602dSChristoph Hellwig configfs_remove_default_groups(&dev->dev_stat_grps.stat_group); 29801ae1602dSChristoph Hellwig configfs_remove_default_groups(&dev->t10_alua.alua_tg_pt_gps_group); 298112d23384SNicholas Bellinger 29821f6fe7cbSNicholas Bellinger /* 29831f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from ->default_tg_pt_gp 29841f6fe7cbSNicholas Bellinger * directly from target_core_alua_tg_pt_gp_release(). 29851f6fe7cbSNicholas Bellinger */ 29860fd97ccfSChristoph Hellwig dev->t10_alua.default_tg_pt_gp = NULL; 2987c66ac9dbSNicholas Bellinger 29881ae1602dSChristoph Hellwig configfs_remove_default_groups(dev_cg); 29891ae1602dSChristoph Hellwig 29901f6fe7cbSNicholas Bellinger /* 29910fd97ccfSChristoph Hellwig * se_dev is released from target_core_dev_item_ops->release() 29921f6fe7cbSNicholas Bellinger */ 2993c66ac9dbSNicholas Bellinger config_item_put(item); 2994c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 2995c66ac9dbSNicholas Bellinger } 2996c66ac9dbSNicholas Bellinger 2997c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_hba_group_ops = { 2998c66ac9dbSNicholas Bellinger .make_group = target_core_make_subdev, 2999c66ac9dbSNicholas Bellinger .drop_item = target_core_drop_subdev, 3000c66ac9dbSNicholas Bellinger }; 3001c66ac9dbSNicholas Bellinger 3002c66ac9dbSNicholas Bellinger 30032eafd729SChristoph Hellwig static inline struct se_hba *to_hba(struct config_item *item) 3004c66ac9dbSNicholas Bellinger { 30052eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_hba, hba_group); 30062eafd729SChristoph Hellwig } 30072eafd729SChristoph Hellwig 30082eafd729SChristoph Hellwig static ssize_t target_hba_info_show(struct config_item *item, char *page) 30092eafd729SChristoph Hellwig { 30102eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 30112eafd729SChristoph Hellwig 3012c66ac9dbSNicholas Bellinger return sprintf(page, "HBA Index: %d plugin: %s version: %s\n", 30130a06d430SChristoph Hellwig hba->hba_id, hba->backend->ops->name, 3014ce8dd25dSChristoph Hellwig TARGET_CORE_VERSION); 3015c66ac9dbSNicholas Bellinger } 3016c66ac9dbSNicholas Bellinger 30172eafd729SChristoph Hellwig static ssize_t target_hba_mode_show(struct config_item *item, char *page) 3018c66ac9dbSNicholas Bellinger { 30192eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 3020c66ac9dbSNicholas Bellinger int hba_mode = 0; 3021c66ac9dbSNicholas Bellinger 3022c66ac9dbSNicholas Bellinger if (hba->hba_flags & HBA_FLAGS_PSCSI_MODE) 3023c66ac9dbSNicholas Bellinger hba_mode = 1; 3024c66ac9dbSNicholas Bellinger 3025c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", hba_mode); 3026c66ac9dbSNicholas Bellinger } 3027c66ac9dbSNicholas Bellinger 30282eafd729SChristoph Hellwig static ssize_t target_hba_mode_store(struct config_item *item, 3029c66ac9dbSNicholas Bellinger const char *page, size_t count) 3030c66ac9dbSNicholas Bellinger { 30312eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 3032c66ac9dbSNicholas Bellinger unsigned long mode_flag; 3033c66ac9dbSNicholas Bellinger int ret; 3034c66ac9dbSNicholas Bellinger 30350a06d430SChristoph Hellwig if (hba->backend->ops->pmode_enable_hba == NULL) 3036c66ac9dbSNicholas Bellinger return -EINVAL; 3037c66ac9dbSNicholas Bellinger 303857103d7fSJingoo Han ret = kstrtoul(page, 0, &mode_flag); 3039c66ac9dbSNicholas Bellinger if (ret < 0) { 30406708bb27SAndy Grover pr_err("Unable to extract hba mode flag: %d\n", ret); 304157103d7fSJingoo Han return ret; 3042c66ac9dbSNicholas Bellinger } 3043c66ac9dbSNicholas Bellinger 30440fd97ccfSChristoph Hellwig if (hba->dev_count) { 30456708bb27SAndy Grover pr_err("Unable to set hba_mode with active devices\n"); 3046c66ac9dbSNicholas Bellinger return -EINVAL; 3047c66ac9dbSNicholas Bellinger } 3048c66ac9dbSNicholas Bellinger 30490a06d430SChristoph Hellwig ret = hba->backend->ops->pmode_enable_hba(hba, mode_flag); 3050c66ac9dbSNicholas Bellinger if (ret < 0) 3051c66ac9dbSNicholas Bellinger return -EINVAL; 3052c66ac9dbSNicholas Bellinger if (ret > 0) 3053c66ac9dbSNicholas Bellinger hba->hba_flags |= HBA_FLAGS_PSCSI_MODE; 3054c66ac9dbSNicholas Bellinger else if (ret == 0) 3055c66ac9dbSNicholas Bellinger hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; 3056c66ac9dbSNicholas Bellinger 3057c66ac9dbSNicholas Bellinger return count; 3058c66ac9dbSNicholas Bellinger } 3059c66ac9dbSNicholas Bellinger 30602eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_, hba_info); 30612eafd729SChristoph Hellwig CONFIGFS_ATTR(target_, hba_mode); 3062c66ac9dbSNicholas Bellinger 30631f6fe7cbSNicholas Bellinger static void target_core_hba_release(struct config_item *item) 30641f6fe7cbSNicholas Bellinger { 30651f6fe7cbSNicholas Bellinger struct se_hba *hba = container_of(to_config_group(item), 30661f6fe7cbSNicholas Bellinger struct se_hba, hba_group); 30671f6fe7cbSNicholas Bellinger core_delete_hba(hba); 30681f6fe7cbSNicholas Bellinger } 30691f6fe7cbSNicholas Bellinger 3070c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_hba_attrs[] = { 30712eafd729SChristoph Hellwig &target_attr_hba_info, 30722eafd729SChristoph Hellwig &target_attr_hba_mode, 3073c66ac9dbSNicholas Bellinger NULL, 3074c66ac9dbSNicholas Bellinger }; 3075c66ac9dbSNicholas Bellinger 3076c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_hba_item_ops = { 30771f6fe7cbSNicholas Bellinger .release = target_core_hba_release, 3078c66ac9dbSNicholas Bellinger }; 3079c66ac9dbSNicholas Bellinger 3080c66ac9dbSNicholas Bellinger static struct config_item_type target_core_hba_cit = { 3081c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_hba_item_ops, 3082c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_hba_group_ops, 3083c66ac9dbSNicholas Bellinger .ct_attrs = target_core_hba_attrs, 3084c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 3085c66ac9dbSNicholas Bellinger }; 3086c66ac9dbSNicholas Bellinger 3087c66ac9dbSNicholas Bellinger static struct config_group *target_core_call_addhbatotarget( 3088c66ac9dbSNicholas Bellinger struct config_group *group, 3089c66ac9dbSNicholas Bellinger const char *name) 3090c66ac9dbSNicholas Bellinger { 3091c66ac9dbSNicholas Bellinger char *se_plugin_str, *str, *str2; 3092c66ac9dbSNicholas Bellinger struct se_hba *hba; 3093c66ac9dbSNicholas Bellinger char buf[TARGET_CORE_NAME_MAX_LEN]; 3094c66ac9dbSNicholas Bellinger unsigned long plugin_dep_id = 0; 3095c66ac9dbSNicholas Bellinger int ret; 3096c66ac9dbSNicholas Bellinger 3097c66ac9dbSNicholas Bellinger memset(buf, 0, TARGET_CORE_NAME_MAX_LEN); 309860d645a4SDan Carpenter if (strlen(name) >= TARGET_CORE_NAME_MAX_LEN) { 30996708bb27SAndy Grover pr_err("Passed *name strlen(): %d exceeds" 3100c66ac9dbSNicholas Bellinger " TARGET_CORE_NAME_MAX_LEN: %d\n", (int)strlen(name), 3101c66ac9dbSNicholas Bellinger TARGET_CORE_NAME_MAX_LEN); 3102c66ac9dbSNicholas Bellinger return ERR_PTR(-ENAMETOOLONG); 3103c66ac9dbSNicholas Bellinger } 3104c66ac9dbSNicholas Bellinger snprintf(buf, TARGET_CORE_NAME_MAX_LEN, "%s", name); 3105c66ac9dbSNicholas Bellinger 3106c66ac9dbSNicholas Bellinger str = strstr(buf, "_"); 31076708bb27SAndy Grover if (!str) { 31086708bb27SAndy Grover pr_err("Unable to locate \"_\" for $SUBSYSTEM_PLUGIN_$HOST_ID\n"); 3109c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 3110c66ac9dbSNicholas Bellinger } 3111c66ac9dbSNicholas Bellinger se_plugin_str = buf; 3112c66ac9dbSNicholas Bellinger /* 3113c66ac9dbSNicholas Bellinger * Special case for subsystem plugins that have "_" in their names. 3114c66ac9dbSNicholas Bellinger * Namely rd_direct and rd_mcp.. 3115c66ac9dbSNicholas Bellinger */ 3116c66ac9dbSNicholas Bellinger str2 = strstr(str+1, "_"); 31176708bb27SAndy Grover if (str2) { 3118c66ac9dbSNicholas Bellinger *str2 = '\0'; /* Terminate for *se_plugin_str */ 3119c66ac9dbSNicholas Bellinger str2++; /* Skip to start of plugin dependent ID */ 3120c66ac9dbSNicholas Bellinger str = str2; 3121c66ac9dbSNicholas Bellinger } else { 3122c66ac9dbSNicholas Bellinger *str = '\0'; /* Terminate for *se_plugin_str */ 3123c66ac9dbSNicholas Bellinger str++; /* Skip to start of plugin dependent ID */ 3124c66ac9dbSNicholas Bellinger } 3125c66ac9dbSNicholas Bellinger 312657103d7fSJingoo Han ret = kstrtoul(str, 0, &plugin_dep_id); 3127c66ac9dbSNicholas Bellinger if (ret < 0) { 312857103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 3129c66ac9dbSNicholas Bellinger " plugin_dep_id\n", ret); 313057103d7fSJingoo Han return ERR_PTR(ret); 3131c66ac9dbSNicholas Bellinger } 3132c66ac9dbSNicholas Bellinger /* 3133c66ac9dbSNicholas Bellinger * Load up TCM subsystem plugins if they have not already been loaded. 3134c66ac9dbSNicholas Bellinger */ 3135dbc5623eSNicholas Bellinger transport_subsystem_check_init(); 3136c66ac9dbSNicholas Bellinger 3137c66ac9dbSNicholas Bellinger hba = core_alloc_hba(se_plugin_str, plugin_dep_id, 0); 3138c66ac9dbSNicholas Bellinger if (IS_ERR(hba)) 3139c66ac9dbSNicholas Bellinger return ERR_CAST(hba); 3140c66ac9dbSNicholas Bellinger 3141c66ac9dbSNicholas Bellinger config_group_init_type_name(&hba->hba_group, name, 3142c66ac9dbSNicholas Bellinger &target_core_hba_cit); 3143c66ac9dbSNicholas Bellinger 3144c66ac9dbSNicholas Bellinger return &hba->hba_group; 3145c66ac9dbSNicholas Bellinger } 3146c66ac9dbSNicholas Bellinger 3147c66ac9dbSNicholas Bellinger static void target_core_call_delhbafromtarget( 3148c66ac9dbSNicholas Bellinger struct config_group *group, 3149c66ac9dbSNicholas Bellinger struct config_item *item) 3150c66ac9dbSNicholas Bellinger { 31511f6fe7cbSNicholas Bellinger /* 31521f6fe7cbSNicholas Bellinger * core_delete_hba() is called from target_core_hba_item_ops->release() 31531f6fe7cbSNicholas Bellinger * -> target_core_hba_release() 31541f6fe7cbSNicholas Bellinger */ 3155c66ac9dbSNicholas Bellinger config_item_put(item); 3156c66ac9dbSNicholas Bellinger } 3157c66ac9dbSNicholas Bellinger 3158c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_group_ops = { 3159c66ac9dbSNicholas Bellinger .make_group = target_core_call_addhbatotarget, 3160c66ac9dbSNicholas Bellinger .drop_item = target_core_call_delhbafromtarget, 3161c66ac9dbSNicholas Bellinger }; 3162c66ac9dbSNicholas Bellinger 3163c66ac9dbSNicholas Bellinger static struct config_item_type target_core_cit = { 3164c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 3165c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_group_ops, 3166c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 3167c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 3168c66ac9dbSNicholas Bellinger }; 3169c66ac9dbSNicholas Bellinger 3170c66ac9dbSNicholas Bellinger /* Stop functions for struct config_item_type target_core_hba_cit */ 3171c66ac9dbSNicholas Bellinger 31720a06d430SChristoph Hellwig void target_setup_backend_cits(struct target_backend *tb) 317373112edcSNicholas Bellinger { 31740a06d430SChristoph Hellwig target_core_setup_dev_cit(tb); 31750a06d430SChristoph Hellwig target_core_setup_dev_attrib_cit(tb); 31760a06d430SChristoph Hellwig target_core_setup_dev_pr_cit(tb); 31770a06d430SChristoph Hellwig target_core_setup_dev_wwn_cit(tb); 31780a06d430SChristoph Hellwig target_core_setup_dev_alua_tg_pt_gps_cit(tb); 31790a06d430SChristoph Hellwig target_core_setup_dev_stat_cit(tb); 318073112edcSNicholas Bellinger } 318173112edcSNicholas Bellinger 318254550fabSAxel Lin static int __init target_core_init_configfs(void) 3183c66ac9dbSNicholas Bellinger { 3184d588cf8fSChristoph Hellwig struct configfs_subsystem *subsys = &target_core_fabrics; 3185c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 3186c66ac9dbSNicholas Bellinger int ret; 3187c66ac9dbSNicholas Bellinger 31886708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Loading Generic Kernel Storage" 3189c66ac9dbSNicholas Bellinger " Engine: %s on %s/%s on "UTS_RELEASE"\n", 3190c66ac9dbSNicholas Bellinger TARGET_CORE_VERSION, utsname()->sysname, utsname()->machine); 3191c66ac9dbSNicholas Bellinger 3192c66ac9dbSNicholas Bellinger config_group_init(&subsys->su_group); 3193c66ac9dbSNicholas Bellinger mutex_init(&subsys->su_mutex); 3194c66ac9dbSNicholas Bellinger 3195e3d6f909SAndy Grover ret = init_se_kmem_caches(); 3196c66ac9dbSNicholas Bellinger if (ret < 0) 3197e3d6f909SAndy Grover return ret; 3198c66ac9dbSNicholas Bellinger /* 3199c66ac9dbSNicholas Bellinger * Create $CONFIGFS/target/core default group for HBA <-> Storage Object 3200c66ac9dbSNicholas Bellinger * and ALUA Logical Unit Group and Target Port Group infrastructure. 3201c66ac9dbSNicholas Bellinger */ 32021ae1602dSChristoph Hellwig config_group_init_type_name(&target_core_hbagroup, "core", 32031ae1602dSChristoph Hellwig &target_core_cit); 32041ae1602dSChristoph Hellwig configfs_add_default_group(&target_core_hbagroup, &subsys->su_group); 3205c66ac9dbSNicholas Bellinger 3206c66ac9dbSNicholas Bellinger /* 3207c66ac9dbSNicholas Bellinger * Create ALUA infrastructure under /sys/kernel/config/target/core/alua/ 3208c66ac9dbSNicholas Bellinger */ 32091ae1602dSChristoph Hellwig config_group_init_type_name(&alua_group, "alua", &target_core_alua_cit); 32101ae1602dSChristoph Hellwig configfs_add_default_group(&alua_group, &target_core_hbagroup); 32111ae1602dSChristoph Hellwig 3212c66ac9dbSNicholas Bellinger /* 3213c66ac9dbSNicholas Bellinger * Add ALUA Logical Unit Group and Target Port Group ConfigFS 3214c66ac9dbSNicholas Bellinger * groups under /sys/kernel/config/target/core/alua/ 3215c66ac9dbSNicholas Bellinger */ 32161ae1602dSChristoph Hellwig config_group_init_type_name(&alua_lu_gps_group, "lu_gps", 32171ae1602dSChristoph Hellwig &target_core_alua_lu_gps_cit); 32181ae1602dSChristoph Hellwig configfs_add_default_group(&alua_lu_gps_group, &alua_group); 3219c66ac9dbSNicholas Bellinger 3220c66ac9dbSNicholas Bellinger /* 3221c66ac9dbSNicholas Bellinger * Add core/alua/lu_gps/default_lu_gp 3222c66ac9dbSNicholas Bellinger */ 3223c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1); 322437bb7899SPeter Senna Tschudin if (IS_ERR(lu_gp)) { 322537bb7899SPeter Senna Tschudin ret = -ENOMEM; 3226c66ac9dbSNicholas Bellinger goto out_global; 322737bb7899SPeter Senna Tschudin } 3228c66ac9dbSNicholas Bellinger 3229c66ac9dbSNicholas Bellinger config_group_init_type_name(&lu_gp->lu_gp_group, "default_lu_gp", 3230c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 32311ae1602dSChristoph Hellwig configfs_add_default_group(&lu_gp->lu_gp_group, &alua_lu_gps_group); 32321ae1602dSChristoph Hellwig 3233e3d6f909SAndy Grover default_lu_gp = lu_gp; 32341ae1602dSChristoph Hellwig 3235c66ac9dbSNicholas Bellinger /* 3236c66ac9dbSNicholas Bellinger * Register the target_core_mod subsystem with configfs. 3237c66ac9dbSNicholas Bellinger */ 3238c66ac9dbSNicholas Bellinger ret = configfs_register_subsystem(subsys); 3239c66ac9dbSNicholas Bellinger if (ret < 0) { 32406708bb27SAndy Grover pr_err("Error %d while registering subsystem %s\n", 3241c66ac9dbSNicholas Bellinger ret, subsys->su_group.cg_item.ci_namebuf); 3242c66ac9dbSNicholas Bellinger goto out_global; 3243c66ac9dbSNicholas Bellinger } 32446708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Initialized ConfigFS Fabric" 3245ce8dd25dSChristoph Hellwig " Infrastructure: "TARGET_CORE_VERSION" on %s/%s" 3246c66ac9dbSNicholas Bellinger " on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); 3247c66ac9dbSNicholas Bellinger /* 3248c66ac9dbSNicholas Bellinger * Register built-in RAMDISK subsystem logic for virtual LUN 0 3249c66ac9dbSNicholas Bellinger */ 3250c66ac9dbSNicholas Bellinger ret = rd_module_init(); 3251c66ac9dbSNicholas Bellinger if (ret < 0) 3252c66ac9dbSNicholas Bellinger goto out; 3253c66ac9dbSNicholas Bellinger 32540d0f9dfbSRoland Dreier ret = core_dev_setup_virtual_lun0(); 32550d0f9dfbSRoland Dreier if (ret < 0) 3256c66ac9dbSNicholas Bellinger goto out; 3257c66ac9dbSNicholas Bellinger 3258f99715acSNicholas Bellinger ret = target_xcopy_setup_pt(); 3259f99715acSNicholas Bellinger if (ret < 0) 3260f99715acSNicholas Bellinger goto out; 3261f99715acSNicholas Bellinger 3262c66ac9dbSNicholas Bellinger return 0; 3263c66ac9dbSNicholas Bellinger 3264c66ac9dbSNicholas Bellinger out: 3265c66ac9dbSNicholas Bellinger configfs_unregister_subsystem(subsys); 3266c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3267c66ac9dbSNicholas Bellinger rd_module_exit(); 3268c66ac9dbSNicholas Bellinger out_global: 3269e3d6f909SAndy Grover if (default_lu_gp) { 3270e3d6f909SAndy Grover core_alua_free_lu_gp(default_lu_gp); 3271e3d6f909SAndy Grover default_lu_gp = NULL; 3272c66ac9dbSNicholas Bellinger } 3273e3d6f909SAndy Grover release_se_kmem_caches(); 3274e3d6f909SAndy Grover return ret; 3275c66ac9dbSNicholas Bellinger } 3276c66ac9dbSNicholas Bellinger 327754550fabSAxel Lin static void __exit target_core_exit_configfs(void) 3278c66ac9dbSNicholas Bellinger { 32791ae1602dSChristoph Hellwig configfs_remove_default_groups(&alua_lu_gps_group); 32801ae1602dSChristoph Hellwig configfs_remove_default_groups(&alua_group); 32811ae1602dSChristoph Hellwig configfs_remove_default_groups(&target_core_hbagroup); 3282c66ac9dbSNicholas Bellinger 32837c2bf6e9SNicholas Bellinger /* 32847c2bf6e9SNicholas Bellinger * We expect subsys->su_group.default_groups to be released 32857c2bf6e9SNicholas Bellinger * by configfs subsystem provider logic.. 32867c2bf6e9SNicholas Bellinger */ 3287d588cf8fSChristoph Hellwig configfs_unregister_subsystem(&target_core_fabrics); 3288c66ac9dbSNicholas Bellinger 3289e3d6f909SAndy Grover core_alua_free_lu_gp(default_lu_gp); 3290e3d6f909SAndy Grover default_lu_gp = NULL; 32917c2bf6e9SNicholas Bellinger 32926708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Released ConfigFS Fabric" 3293c66ac9dbSNicholas Bellinger " Infrastructure\n"); 3294c66ac9dbSNicholas Bellinger 3295c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3296c66ac9dbSNicholas Bellinger rd_module_exit(); 3297f99715acSNicholas Bellinger target_xcopy_release_pt(); 3298e3d6f909SAndy Grover release_se_kmem_caches(); 3299c66ac9dbSNicholas Bellinger } 3300c66ac9dbSNicholas Bellinger 3301c66ac9dbSNicholas Bellinger MODULE_DESCRIPTION("Target_Core_Mod/ConfigFS"); 3302c66ac9dbSNicholas Bellinger MODULE_AUTHOR("nab@Linux-iSCSI.org"); 3303c66ac9dbSNicholas Bellinger MODULE_LICENSE("GPL"); 3304c66ac9dbSNicholas Bellinger 3305c66ac9dbSNicholas Bellinger module_init(target_core_init_configfs); 3306c66ac9dbSNicholas Bellinger module_exit(target_core_exit_configfs); 3307