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 102c66ac9dbSNicholas Bellinger static struct target_fabric_configfs *target_core_get_fabric( 103c66ac9dbSNicholas Bellinger const char *name) 104c66ac9dbSNicholas Bellinger { 105c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf; 106c66ac9dbSNicholas Bellinger 1076708bb27SAndy Grover if (!name) 108c66ac9dbSNicholas Bellinger return NULL; 109c66ac9dbSNicholas Bellinger 110c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 111c66ac9dbSNicholas Bellinger list_for_each_entry(tf, &g_tf_list, tf_list) { 1120dc2e8d1SChristoph Hellwig if (!strcmp(tf->tf_ops->name, name)) { 113c66ac9dbSNicholas Bellinger atomic_inc(&tf->tf_access_cnt); 114c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 115c66ac9dbSNicholas Bellinger return tf; 116c66ac9dbSNicholas Bellinger } 117c66ac9dbSNicholas Bellinger } 118c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 119c66ac9dbSNicholas Bellinger 120c66ac9dbSNicholas Bellinger return NULL; 121c66ac9dbSNicholas Bellinger } 122c66ac9dbSNicholas Bellinger 123c66ac9dbSNicholas Bellinger /* 124c66ac9dbSNicholas Bellinger * Called from struct target_core_group_ops->make_group() 125c66ac9dbSNicholas Bellinger */ 126c66ac9dbSNicholas Bellinger static struct config_group *target_core_register_fabric( 127c66ac9dbSNicholas Bellinger struct config_group *group, 128c66ac9dbSNicholas Bellinger const char *name) 129c66ac9dbSNicholas Bellinger { 130c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf; 131c66ac9dbSNicholas Bellinger int ret; 132c66ac9dbSNicholas Bellinger 1336708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER -> group: %p name:" 134c66ac9dbSNicholas Bellinger " %s\n", group, name); 135e7b7af6eSRoland Dreier 136e7b7af6eSRoland Dreier tf = target_core_get_fabric(name); 137e7b7af6eSRoland Dreier if (!tf) { 13862554910SNicholas Bellinger pr_debug("target_core_register_fabric() trying autoload for %s\n", 139e7b7af6eSRoland Dreier name); 140e7b7af6eSRoland Dreier 141c66ac9dbSNicholas Bellinger /* 142c66ac9dbSNicholas Bellinger * Below are some hardcoded request_module() calls to automatically 143c66ac9dbSNicholas Bellinger * local fabric modules when the following is called: 144c66ac9dbSNicholas Bellinger * 145c66ac9dbSNicholas Bellinger * mkdir -p /sys/kernel/config/target/$MODULE_NAME 146c66ac9dbSNicholas Bellinger * 147c66ac9dbSNicholas Bellinger * Note that this does not limit which TCM fabric module can be 148c66ac9dbSNicholas Bellinger * registered, but simply provids auto loading logic for modules with 149c66ac9dbSNicholas Bellinger * mkdir(2) system calls with known TCM fabric modules. 150c66ac9dbSNicholas Bellinger */ 151e7b7af6eSRoland Dreier 1526708bb27SAndy Grover if (!strncmp(name, "iscsi", 5)) { 153c66ac9dbSNicholas Bellinger /* 154c66ac9dbSNicholas Bellinger * Automatically load the LIO Target fabric module when the 155c66ac9dbSNicholas Bellinger * following is called: 156c66ac9dbSNicholas Bellinger * 157c66ac9dbSNicholas Bellinger * mkdir -p $CONFIGFS/target/iscsi 158c66ac9dbSNicholas Bellinger */ 159c66ac9dbSNicholas Bellinger ret = request_module("iscsi_target_mod"); 160c66ac9dbSNicholas Bellinger if (ret < 0) { 16162554910SNicholas Bellinger pr_debug("request_module() failed for" 162c66ac9dbSNicholas Bellinger " iscsi_target_mod.ko: %d\n", ret); 163c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 164c66ac9dbSNicholas Bellinger } 1656708bb27SAndy Grover } else if (!strncmp(name, "loopback", 8)) { 166c66ac9dbSNicholas Bellinger /* 167c66ac9dbSNicholas Bellinger * Automatically load the tcm_loop fabric module when the 168c66ac9dbSNicholas Bellinger * following is called: 169c66ac9dbSNicholas Bellinger * 170c66ac9dbSNicholas Bellinger * mkdir -p $CONFIGFS/target/loopback 171c66ac9dbSNicholas Bellinger */ 172c66ac9dbSNicholas Bellinger ret = request_module("tcm_loop"); 173c66ac9dbSNicholas Bellinger if (ret < 0) { 17462554910SNicholas Bellinger pr_debug("request_module() failed for" 175c66ac9dbSNicholas Bellinger " tcm_loop.ko: %d\n", ret); 176c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 177c66ac9dbSNicholas Bellinger } 178c66ac9dbSNicholas Bellinger } 179c66ac9dbSNicholas Bellinger 180c66ac9dbSNicholas Bellinger tf = target_core_get_fabric(name); 181e7b7af6eSRoland Dreier } 182e7b7af6eSRoland Dreier 1836708bb27SAndy Grover if (!tf) { 18462554910SNicholas Bellinger pr_debug("target_core_get_fabric() failed for %s\n", 185c66ac9dbSNicholas Bellinger name); 186c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 187c66ac9dbSNicholas Bellinger } 1886708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER -> Located fabric:" 1890dc2e8d1SChristoph Hellwig " %s\n", tf->tf_ops->name); 190c66ac9dbSNicholas Bellinger /* 191c66ac9dbSNicholas Bellinger * On a successful target_core_get_fabric() look, the returned 192c66ac9dbSNicholas Bellinger * struct target_fabric_configfs *tf will contain a usage reference. 193c66ac9dbSNicholas Bellinger */ 1946708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n", 195968ebe75SChristoph Hellwig &tf->tf_wwn_cit); 196c66ac9dbSNicholas Bellinger 197c66ac9dbSNicholas Bellinger tf->tf_group.default_groups = tf->tf_default_groups; 198c66ac9dbSNicholas Bellinger tf->tf_group.default_groups[0] = &tf->tf_disc_group; 199c66ac9dbSNicholas Bellinger tf->tf_group.default_groups[1] = NULL; 200c66ac9dbSNicholas Bellinger 201968ebe75SChristoph Hellwig config_group_init_type_name(&tf->tf_group, name, &tf->tf_wwn_cit); 202c66ac9dbSNicholas Bellinger config_group_init_type_name(&tf->tf_disc_group, "discovery_auth", 203968ebe75SChristoph Hellwig &tf->tf_discovery_cit); 204c66ac9dbSNicholas Bellinger 2056708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric:" 206c66ac9dbSNicholas Bellinger " %s\n", tf->tf_group.cg_item.ci_name); 207c66ac9dbSNicholas Bellinger return &tf->tf_group; 208c66ac9dbSNicholas Bellinger } 209c66ac9dbSNicholas Bellinger 210c66ac9dbSNicholas Bellinger /* 211c66ac9dbSNicholas Bellinger * Called from struct target_core_group_ops->drop_item() 212c66ac9dbSNicholas Bellinger */ 213c66ac9dbSNicholas Bellinger static void target_core_deregister_fabric( 214c66ac9dbSNicholas Bellinger struct config_group *group, 215c66ac9dbSNicholas Bellinger struct config_item *item) 216c66ac9dbSNicholas Bellinger { 217c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf = container_of( 218c66ac9dbSNicholas Bellinger to_config_group(item), struct target_fabric_configfs, tf_group); 219c66ac9dbSNicholas Bellinger struct config_group *tf_group; 220c66ac9dbSNicholas Bellinger struct config_item *df_item; 221c66ac9dbSNicholas Bellinger int i; 222c66ac9dbSNicholas Bellinger 2236708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: DEREGISTER -> Looking up %s in" 224c66ac9dbSNicholas Bellinger " tf list\n", config_item_name(item)); 225c66ac9dbSNicholas Bellinger 2266708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: DEREGISTER -> located fabric:" 2270dc2e8d1SChristoph Hellwig " %s\n", tf->tf_ops->name); 228c66ac9dbSNicholas Bellinger atomic_dec(&tf->tf_access_cnt); 229c66ac9dbSNicholas Bellinger 2306708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing ci" 231c66ac9dbSNicholas Bellinger " %s\n", config_item_name(item)); 232c66ac9dbSNicholas Bellinger 233c66ac9dbSNicholas Bellinger tf_group = &tf->tf_group; 234c66ac9dbSNicholas Bellinger for (i = 0; tf_group->default_groups[i]; i++) { 235c66ac9dbSNicholas Bellinger df_item = &tf_group->default_groups[i]->cg_item; 236c66ac9dbSNicholas Bellinger tf_group->default_groups[i] = NULL; 237c66ac9dbSNicholas Bellinger config_item_put(df_item); 238c66ac9dbSNicholas Bellinger } 239c66ac9dbSNicholas Bellinger config_item_put(item); 240c66ac9dbSNicholas Bellinger } 241c66ac9dbSNicholas Bellinger 242c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_fabric_group_ops = { 243c66ac9dbSNicholas Bellinger .make_group = &target_core_register_fabric, 244c66ac9dbSNicholas Bellinger .drop_item = &target_core_deregister_fabric, 245c66ac9dbSNicholas Bellinger }; 246c66ac9dbSNicholas Bellinger 247c66ac9dbSNicholas Bellinger /* 248c66ac9dbSNicholas Bellinger * All item attributes appearing in /sys/kernel/target/ appear here. 249c66ac9dbSNicholas Bellinger */ 250c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_fabric_item_attrs[] = { 251c66ac9dbSNicholas Bellinger &target_core_item_attr_version, 252c66ac9dbSNicholas Bellinger NULL, 253c66ac9dbSNicholas Bellinger }; 254c66ac9dbSNicholas Bellinger 255c66ac9dbSNicholas Bellinger /* 256c66ac9dbSNicholas Bellinger * Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/ 257c66ac9dbSNicholas Bellinger */ 258c66ac9dbSNicholas Bellinger static struct config_item_type target_core_fabrics_item = { 259c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_fabric_group_ops, 260c66ac9dbSNicholas Bellinger .ct_attrs = target_core_fabric_item_attrs, 261c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 262c66ac9dbSNicholas Bellinger }; 263c66ac9dbSNicholas Bellinger 264c66ac9dbSNicholas Bellinger static struct configfs_subsystem target_core_fabrics = { 265c66ac9dbSNicholas Bellinger .su_group = { 266c66ac9dbSNicholas Bellinger .cg_item = { 267c66ac9dbSNicholas Bellinger .ci_namebuf = "target", 268c66ac9dbSNicholas Bellinger .ci_type = &target_core_fabrics_item, 269c66ac9dbSNicholas Bellinger }, 270c66ac9dbSNicholas Bellinger }, 271c66ac9dbSNicholas Bellinger }; 272c66ac9dbSNicholas Bellinger 273d588cf8fSChristoph Hellwig int target_depend_item(struct config_item *item) 274d588cf8fSChristoph Hellwig { 275d588cf8fSChristoph Hellwig return configfs_depend_item(&target_core_fabrics, item); 276d588cf8fSChristoph Hellwig } 277d588cf8fSChristoph Hellwig EXPORT_SYMBOL(target_depend_item); 278d588cf8fSChristoph Hellwig 279d588cf8fSChristoph Hellwig void target_undepend_item(struct config_item *item) 280d588cf8fSChristoph Hellwig { 2819a9e3415SKrzysztof Opasiak return configfs_undepend_item(item); 282d588cf8fSChristoph Hellwig } 283d588cf8fSChristoph Hellwig EXPORT_SYMBOL(target_undepend_item); 284c66ac9dbSNicholas Bellinger 285c66ac9dbSNicholas Bellinger /*############################################################################## 286c66ac9dbSNicholas Bellinger // Start functions called by external Target Fabrics Modules 287c66ac9dbSNicholas Bellinger //############################################################################*/ 288c66ac9dbSNicholas Bellinger 2899ac8928eSChristoph Hellwig static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) 290c66ac9dbSNicholas Bellinger { 2919ac8928eSChristoph Hellwig if (!tfo->name) { 2929ac8928eSChristoph Hellwig pr_err("Missing tfo->name\n"); 2939ac8928eSChristoph Hellwig return -EINVAL; 294c66ac9dbSNicholas Bellinger } 2959ac8928eSChristoph Hellwig if (strlen(tfo->name) >= TARGET_FABRIC_NAME_SIZE) { 2966708bb27SAndy Grover pr_err("Passed name: %s exceeds TARGET_FABRIC" 2979ac8928eSChristoph Hellwig "_NAME_SIZE\n", tfo->name); 2989ac8928eSChristoph Hellwig return -EINVAL; 299c66ac9dbSNicholas Bellinger } 3006708bb27SAndy Grover if (!tfo->get_fabric_name) { 3016708bb27SAndy Grover pr_err("Missing tfo->get_fabric_name()\n"); 302c66ac9dbSNicholas Bellinger return -EINVAL; 303c66ac9dbSNicholas Bellinger } 3046708bb27SAndy Grover if (!tfo->tpg_get_wwn) { 3056708bb27SAndy Grover pr_err("Missing tfo->tpg_get_wwn()\n"); 306c66ac9dbSNicholas Bellinger return -EINVAL; 307c66ac9dbSNicholas Bellinger } 3086708bb27SAndy Grover if (!tfo->tpg_get_tag) { 3096708bb27SAndy Grover pr_err("Missing tfo->tpg_get_tag()\n"); 310c66ac9dbSNicholas Bellinger return -EINVAL; 311c66ac9dbSNicholas Bellinger } 3126708bb27SAndy Grover if (!tfo->tpg_check_demo_mode) { 3136708bb27SAndy Grover pr_err("Missing tfo->tpg_check_demo_mode()\n"); 314c66ac9dbSNicholas Bellinger return -EINVAL; 315c66ac9dbSNicholas Bellinger } 3166708bb27SAndy Grover if (!tfo->tpg_check_demo_mode_cache) { 3176708bb27SAndy Grover pr_err("Missing tfo->tpg_check_demo_mode_cache()\n"); 318c66ac9dbSNicholas Bellinger return -EINVAL; 319c66ac9dbSNicholas Bellinger } 3206708bb27SAndy Grover if (!tfo->tpg_check_demo_mode_write_protect) { 3216708bb27SAndy Grover pr_err("Missing tfo->tpg_check_demo_mode_write_protect()\n"); 322c66ac9dbSNicholas Bellinger return -EINVAL; 323c66ac9dbSNicholas Bellinger } 3246708bb27SAndy Grover if (!tfo->tpg_check_prod_mode_write_protect) { 3256708bb27SAndy Grover pr_err("Missing tfo->tpg_check_prod_mode_write_protect()\n"); 326c66ac9dbSNicholas Bellinger return -EINVAL; 327c66ac9dbSNicholas Bellinger } 3286708bb27SAndy Grover if (!tfo->tpg_get_inst_index) { 3296708bb27SAndy Grover pr_err("Missing tfo->tpg_get_inst_index()\n"); 330c66ac9dbSNicholas Bellinger return -EINVAL; 331c66ac9dbSNicholas Bellinger } 33235462975SChristoph Hellwig if (!tfo->release_cmd) { 3336708bb27SAndy Grover pr_err("Missing tfo->release_cmd()\n"); 334c66ac9dbSNicholas Bellinger return -EINVAL; 335c66ac9dbSNicholas Bellinger } 3366708bb27SAndy Grover if (!tfo->shutdown_session) { 3376708bb27SAndy Grover pr_err("Missing tfo->shutdown_session()\n"); 338c66ac9dbSNicholas Bellinger return -EINVAL; 339c66ac9dbSNicholas Bellinger } 3406708bb27SAndy Grover if (!tfo->close_session) { 3416708bb27SAndy Grover pr_err("Missing tfo->close_session()\n"); 342c66ac9dbSNicholas Bellinger return -EINVAL; 343c66ac9dbSNicholas Bellinger } 3446708bb27SAndy Grover if (!tfo->sess_get_index) { 3456708bb27SAndy Grover pr_err("Missing tfo->sess_get_index()\n"); 346c66ac9dbSNicholas Bellinger return -EINVAL; 347c66ac9dbSNicholas Bellinger } 3486708bb27SAndy Grover if (!tfo->write_pending) { 3496708bb27SAndy Grover pr_err("Missing tfo->write_pending()\n"); 350c66ac9dbSNicholas Bellinger return -EINVAL; 351c66ac9dbSNicholas Bellinger } 3526708bb27SAndy Grover if (!tfo->write_pending_status) { 3536708bb27SAndy Grover pr_err("Missing tfo->write_pending_status()\n"); 354c66ac9dbSNicholas Bellinger return -EINVAL; 355c66ac9dbSNicholas Bellinger } 3566708bb27SAndy Grover if (!tfo->set_default_node_attributes) { 3576708bb27SAndy Grover pr_err("Missing tfo->set_default_node_attributes()\n"); 358c66ac9dbSNicholas Bellinger return -EINVAL; 359c66ac9dbSNicholas Bellinger } 3606708bb27SAndy Grover if (!tfo->get_cmd_state) { 3616708bb27SAndy Grover pr_err("Missing tfo->get_cmd_state()\n"); 362c66ac9dbSNicholas Bellinger return -EINVAL; 363c66ac9dbSNicholas Bellinger } 3646708bb27SAndy Grover if (!tfo->queue_data_in) { 3656708bb27SAndy Grover pr_err("Missing tfo->queue_data_in()\n"); 366c66ac9dbSNicholas Bellinger return -EINVAL; 367c66ac9dbSNicholas Bellinger } 3686708bb27SAndy Grover if (!tfo->queue_status) { 3696708bb27SAndy Grover pr_err("Missing tfo->queue_status()\n"); 370c66ac9dbSNicholas Bellinger return -EINVAL; 371c66ac9dbSNicholas Bellinger } 3726708bb27SAndy Grover if (!tfo->queue_tm_rsp) { 3736708bb27SAndy Grover pr_err("Missing tfo->queue_tm_rsp()\n"); 374c66ac9dbSNicholas Bellinger return -EINVAL; 375c66ac9dbSNicholas Bellinger } 376131e6abcSNicholas Bellinger if (!tfo->aborted_task) { 377131e6abcSNicholas Bellinger pr_err("Missing tfo->aborted_task()\n"); 378131e6abcSNicholas Bellinger return -EINVAL; 379131e6abcSNicholas Bellinger } 380c66ac9dbSNicholas Bellinger /* 381c66ac9dbSNicholas Bellinger * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn() 382c66ac9dbSNicholas Bellinger * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in 383c66ac9dbSNicholas Bellinger * target_core_fabric_configfs.c WWN+TPG group context code. 384c66ac9dbSNicholas Bellinger */ 3856708bb27SAndy Grover if (!tfo->fabric_make_wwn) { 3866708bb27SAndy Grover pr_err("Missing tfo->fabric_make_wwn()\n"); 387c66ac9dbSNicholas Bellinger return -EINVAL; 388c66ac9dbSNicholas Bellinger } 3896708bb27SAndy Grover if (!tfo->fabric_drop_wwn) { 3906708bb27SAndy Grover pr_err("Missing tfo->fabric_drop_wwn()\n"); 391c66ac9dbSNicholas Bellinger return -EINVAL; 392c66ac9dbSNicholas Bellinger } 3936708bb27SAndy Grover if (!tfo->fabric_make_tpg) { 3946708bb27SAndy Grover pr_err("Missing tfo->fabric_make_tpg()\n"); 395c66ac9dbSNicholas Bellinger return -EINVAL; 396c66ac9dbSNicholas Bellinger } 3976708bb27SAndy Grover if (!tfo->fabric_drop_tpg) { 3986708bb27SAndy Grover pr_err("Missing tfo->fabric_drop_tpg()\n"); 399c66ac9dbSNicholas Bellinger return -EINVAL; 400c66ac9dbSNicholas Bellinger } 401c66ac9dbSNicholas Bellinger 402c66ac9dbSNicholas Bellinger return 0; 403c66ac9dbSNicholas Bellinger } 404c66ac9dbSNicholas Bellinger 4059ac8928eSChristoph Hellwig int target_register_template(const struct target_core_fabric_ops *fo) 406c66ac9dbSNicholas Bellinger { 4079ac8928eSChristoph Hellwig struct target_fabric_configfs *tf; 408c66ac9dbSNicholas Bellinger int ret; 409c66ac9dbSNicholas Bellinger 4109ac8928eSChristoph Hellwig ret = target_fabric_tf_ops_check(fo); 4119ac8928eSChristoph Hellwig if (ret) 412c66ac9dbSNicholas Bellinger return ret; 413c66ac9dbSNicholas Bellinger 4149ac8928eSChristoph Hellwig tf = kzalloc(sizeof(struct target_fabric_configfs), GFP_KERNEL); 4159ac8928eSChristoph Hellwig if (!tf) { 4169ac8928eSChristoph Hellwig pr_err("%s: could not allocate memory!\n", __func__); 4179ac8928eSChristoph Hellwig return -ENOMEM; 4189ac8928eSChristoph Hellwig } 4199ac8928eSChristoph Hellwig 4209ac8928eSChristoph Hellwig INIT_LIST_HEAD(&tf->tf_list); 4219ac8928eSChristoph Hellwig atomic_set(&tf->tf_access_cnt, 0); 422ef0caf8dSChristoph Hellwig tf->tf_ops = fo; 4239ac8928eSChristoph Hellwig target_fabric_setup_cits(tf); 4249ac8928eSChristoph Hellwig 4259ac8928eSChristoph Hellwig mutex_lock(&g_tf_lock); 4269ac8928eSChristoph Hellwig list_add_tail(&tf->tf_list, &g_tf_list); 4279ac8928eSChristoph Hellwig mutex_unlock(&g_tf_lock); 4289ac8928eSChristoph Hellwig 429c66ac9dbSNicholas Bellinger return 0; 430c66ac9dbSNicholas Bellinger } 4319ac8928eSChristoph Hellwig EXPORT_SYMBOL(target_register_template); 432c66ac9dbSNicholas Bellinger 4339ac8928eSChristoph Hellwig void target_unregister_template(const struct target_core_fabric_ops *fo) 434c66ac9dbSNicholas Bellinger { 4359ac8928eSChristoph Hellwig struct target_fabric_configfs *t; 436c66ac9dbSNicholas Bellinger 437c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 4389ac8928eSChristoph Hellwig list_for_each_entry(t, &g_tf_list, tf_list) { 4390dc2e8d1SChristoph Hellwig if (!strcmp(t->tf_ops->name, fo->name)) { 4409ac8928eSChristoph Hellwig BUG_ON(atomic_read(&t->tf_access_cnt)); 4419ac8928eSChristoph Hellwig list_del(&t->tf_list); 44294509182SNicholas Bellinger mutex_unlock(&g_tf_lock); 44394509182SNicholas Bellinger /* 44494509182SNicholas Bellinger * Wait for any outstanding fabric se_deve_entry->rcu_head 44594509182SNicholas Bellinger * callbacks to complete post kfree_rcu(), before allowing 44694509182SNicholas Bellinger * fabric driver unload of TFO->module to proceed. 44794509182SNicholas Bellinger */ 44894509182SNicholas Bellinger rcu_barrier(); 4499ac8928eSChristoph Hellwig kfree(t); 45094509182SNicholas Bellinger return; 451c66ac9dbSNicholas Bellinger } 452c66ac9dbSNicholas Bellinger } 4539ac8928eSChristoph Hellwig mutex_unlock(&g_tf_lock); 4549ac8928eSChristoph Hellwig } 4559ac8928eSChristoph Hellwig EXPORT_SYMBOL(target_unregister_template); 456c66ac9dbSNicholas Bellinger 457c66ac9dbSNicholas Bellinger /*############################################################################## 458c66ac9dbSNicholas Bellinger // Stop functions called by external Target Fabrics Modules 459c66ac9dbSNicholas Bellinger //############################################################################*/ 460c66ac9dbSNicholas Bellinger 4612eafd729SChristoph Hellwig static inline struct se_dev_attrib *to_attrib(struct config_item *item) 4622eafd729SChristoph Hellwig { 4632eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_dev_attrib, 4642eafd729SChristoph Hellwig da_group); 4655873c4d1SChristoph Hellwig } 4665873c4d1SChristoph Hellwig 4672eafd729SChristoph Hellwig /* Start functions for struct config_item_type tb_dev_attrib_cit */ 4682eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_SHOW(_name) \ 4692eafd729SChristoph Hellwig static ssize_t _name##_show(struct config_item *item, char *page) \ 4702eafd729SChristoph Hellwig { \ 4712eafd729SChristoph Hellwig return snprintf(page, PAGE_SIZE, "%u\n", to_attrib(item)->_name); \ 4722eafd729SChristoph Hellwig } 4733effdb90SChristoph Hellwig 4742eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_model_alias); 4752eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_dpo); 4762eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_write); 4772eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_read); 4782eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_write_cache); 4792eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_ua_intlck_ctrl); 4802eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_tas); 4812eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpu); 4822eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpws); 4832eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_caw); 4842eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_3pc); 4852eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_type); 4862eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_pi_prot_type); 4872eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_format); 4882eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(enforce_pr_isids); 4892eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(is_nonrot); 4902eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(emulate_rest_reord); 4912eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(force_pr_aptpl); 4922eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_block_size); 4932eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(block_size); 4942eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_max_sectors); 4952eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(optimal_sectors); 4962eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(hw_queue_depth); 4972eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(queue_depth); 4982eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_lba_count); 4992eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_block_desc_count); 5002eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity); 5012eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity_alignment); 5022eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(max_write_same_len); 5032eafd729SChristoph Hellwig 5042eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_U32(_name) \ 5052eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page,\ 5065873c4d1SChristoph Hellwig size_t count) \ 5075873c4d1SChristoph Hellwig { \ 5082eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); \ 5093effdb90SChristoph Hellwig u32 val; \ 5105873c4d1SChristoph Hellwig int ret; \ 5115873c4d1SChristoph Hellwig \ 5123effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); \ 5133effdb90SChristoph Hellwig if (ret < 0) \ 5143effdb90SChristoph Hellwig return ret; \ 5153effdb90SChristoph Hellwig da->_name = val; \ 5163effdb90SChristoph Hellwig return count; \ 5175873c4d1SChristoph Hellwig } 5185873c4d1SChristoph Hellwig 5192eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_lba_count); 5202eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_block_desc_count); 5212eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity); 5222eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity_alignment); 5232eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_write_same_len); 5245873c4d1SChristoph Hellwig 5252eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_BOOL(_name) \ 5262eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page, \ 5273effdb90SChristoph Hellwig size_t count) \ 5283effdb90SChristoph Hellwig { \ 5292eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); \ 5303effdb90SChristoph Hellwig bool flag; \ 5313effdb90SChristoph Hellwig int ret; \ 5323effdb90SChristoph Hellwig \ 5333effdb90SChristoph Hellwig ret = strtobool(page, &flag); \ 5343effdb90SChristoph Hellwig if (ret < 0) \ 5353effdb90SChristoph Hellwig return ret; \ 5363effdb90SChristoph Hellwig da->_name = flag; \ 5373effdb90SChristoph Hellwig return count; \ 5383effdb90SChristoph Hellwig } 5393effdb90SChristoph Hellwig 5402eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_fua_write); 5412eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_caw); 5422eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_3pc); 5432eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(enforce_pr_isids); 5442eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(is_nonrot); 5453effdb90SChristoph Hellwig 5462eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_STUB(_name) \ 5472eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page,\ 5483effdb90SChristoph Hellwig size_t count) \ 5493effdb90SChristoph Hellwig { \ 5503effdb90SChristoph Hellwig printk_once(KERN_WARNING \ 5513effdb90SChristoph Hellwig "ignoring deprecated ##_name## attribute\n"); \ 5523effdb90SChristoph Hellwig return count; \ 5533effdb90SChristoph Hellwig } 5543effdb90SChristoph Hellwig 5552eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_dpo); 5562eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_fua_read); 5573effdb90SChristoph Hellwig 5583effdb90SChristoph Hellwig static void dev_set_t10_wwn_model_alias(struct se_device *dev) 5593effdb90SChristoph Hellwig { 5603effdb90SChristoph Hellwig const char *configname; 5613effdb90SChristoph Hellwig 5623effdb90SChristoph Hellwig configname = config_item_name(&dev->dev_group.cg_item); 5633effdb90SChristoph Hellwig if (strlen(configname) >= 16) { 5643effdb90SChristoph Hellwig pr_warn("dev[%p]: Backstore name '%s' is too long for " 5653effdb90SChristoph Hellwig "INQUIRY_MODEL, truncating to 16 bytes\n", dev, 5663effdb90SChristoph Hellwig configname); 5673effdb90SChristoph Hellwig } 5683effdb90SChristoph Hellwig snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); 5693effdb90SChristoph Hellwig } 5703effdb90SChristoph Hellwig 5712eafd729SChristoph Hellwig static ssize_t emulate_model_alias_store(struct config_item *item, 5723effdb90SChristoph Hellwig const char *page, size_t count) 5733effdb90SChristoph Hellwig { 5742eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 5753effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 5763effdb90SChristoph Hellwig bool flag; 5773effdb90SChristoph Hellwig int ret; 5783effdb90SChristoph Hellwig 5793effdb90SChristoph Hellwig if (dev->export_count) { 5803effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change model alias" 5813effdb90SChristoph Hellwig " while export_count is %d\n", 5823effdb90SChristoph Hellwig dev, dev->export_count); 5833effdb90SChristoph Hellwig return -EINVAL; 5843effdb90SChristoph Hellwig } 5853effdb90SChristoph Hellwig 5863effdb90SChristoph Hellwig ret = strtobool(page, &flag); 5873effdb90SChristoph Hellwig if (ret < 0) 5883effdb90SChristoph Hellwig return ret; 5893effdb90SChristoph Hellwig 5903effdb90SChristoph Hellwig if (flag) { 5913effdb90SChristoph Hellwig dev_set_t10_wwn_model_alias(dev); 5923effdb90SChristoph Hellwig } else { 5933effdb90SChristoph Hellwig strncpy(&dev->t10_wwn.model[0], 5943effdb90SChristoph Hellwig dev->transport->inquiry_prod, 16); 5953effdb90SChristoph Hellwig } 5963effdb90SChristoph Hellwig da->emulate_model_alias = flag; 5973effdb90SChristoph Hellwig return count; 5983effdb90SChristoph Hellwig } 5993effdb90SChristoph Hellwig 6002eafd729SChristoph Hellwig static ssize_t emulate_write_cache_store(struct config_item *item, 6013effdb90SChristoph Hellwig const char *page, size_t count) 6023effdb90SChristoph Hellwig { 6032eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6043effdb90SChristoph Hellwig bool flag; 6053effdb90SChristoph Hellwig int ret; 6063effdb90SChristoph Hellwig 6073effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6083effdb90SChristoph Hellwig if (ret < 0) 6093effdb90SChristoph Hellwig return ret; 6103effdb90SChristoph Hellwig 6113effdb90SChristoph Hellwig if (flag && da->da_dev->transport->get_write_cache) { 6123effdb90SChristoph Hellwig pr_err("emulate_write_cache not supported for this device\n"); 6133effdb90SChristoph Hellwig return -EINVAL; 6143effdb90SChristoph Hellwig } 6153effdb90SChristoph Hellwig 6163effdb90SChristoph Hellwig da->emulate_write_cache = flag; 6173effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", 6183effdb90SChristoph Hellwig da->da_dev, flag); 6193effdb90SChristoph Hellwig return count; 6203effdb90SChristoph Hellwig } 6213effdb90SChristoph Hellwig 6222eafd729SChristoph Hellwig static ssize_t emulate_ua_intlck_ctrl_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 u32 val; 6273effdb90SChristoph Hellwig int ret; 6283effdb90SChristoph Hellwig 6293effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 6303effdb90SChristoph Hellwig if (ret < 0) 6313effdb90SChristoph Hellwig return ret; 6323effdb90SChristoph Hellwig 6333effdb90SChristoph Hellwig if (val != 0 && val != 1 && val != 2) { 6343effdb90SChristoph Hellwig pr_err("Illegal value %d\n", val); 6353effdb90SChristoph Hellwig return -EINVAL; 6363effdb90SChristoph Hellwig } 6373effdb90SChristoph Hellwig 6383effdb90SChristoph Hellwig if (da->da_dev->export_count) { 6393effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device" 6403effdb90SChristoph Hellwig " UA_INTRLCK_CTRL while export_count is %d\n", 6413effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 6423effdb90SChristoph Hellwig return -EINVAL; 6433effdb90SChristoph Hellwig } 6443effdb90SChristoph Hellwig da->emulate_ua_intlck_ctrl = val; 6453effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", 6463effdb90SChristoph Hellwig da->da_dev, val); 6473effdb90SChristoph Hellwig return count; 6483effdb90SChristoph Hellwig } 6493effdb90SChristoph Hellwig 6502eafd729SChristoph Hellwig static ssize_t emulate_tas_store(struct config_item *item, 6513effdb90SChristoph Hellwig const char *page, size_t count) 6523effdb90SChristoph Hellwig { 6532eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6543effdb90SChristoph Hellwig bool flag; 6553effdb90SChristoph Hellwig int ret; 6563effdb90SChristoph Hellwig 6573effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6583effdb90SChristoph Hellwig if (ret < 0) 6593effdb90SChristoph Hellwig return ret; 6603effdb90SChristoph Hellwig 6613effdb90SChristoph Hellwig if (da->da_dev->export_count) { 6623effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device TAS while" 6633effdb90SChristoph Hellwig " export_count is %d\n", 6643effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 6653effdb90SChristoph Hellwig return -EINVAL; 6663effdb90SChristoph Hellwig } 6673effdb90SChristoph Hellwig da->emulate_tas = flag; 6683effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", 6693effdb90SChristoph Hellwig da->da_dev, flag ? "Enabled" : "Disabled"); 6703effdb90SChristoph Hellwig 6713effdb90SChristoph Hellwig return count; 6723effdb90SChristoph Hellwig } 6733effdb90SChristoph Hellwig 6742eafd729SChristoph Hellwig static ssize_t emulate_tpu_store(struct config_item *item, 6753effdb90SChristoph Hellwig const char *page, size_t count) 6763effdb90SChristoph Hellwig { 6772eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6783effdb90SChristoph Hellwig bool flag; 6793effdb90SChristoph Hellwig int ret; 6803effdb90SChristoph Hellwig 6813effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6823effdb90SChristoph Hellwig if (ret < 0) 6833effdb90SChristoph Hellwig return ret; 6843effdb90SChristoph Hellwig 6853effdb90SChristoph Hellwig /* 6863effdb90SChristoph Hellwig * We expect this value to be non-zero when generic Block Layer 6873effdb90SChristoph Hellwig * Discard supported is detected iblock_create_virtdevice(). 6883effdb90SChristoph Hellwig */ 6893effdb90SChristoph Hellwig if (flag && !da->max_unmap_block_desc_count) { 6903effdb90SChristoph Hellwig pr_err("Generic Block Discard not supported\n"); 6913effdb90SChristoph Hellwig return -ENOSYS; 6923effdb90SChristoph Hellwig } 6933effdb90SChristoph Hellwig 6943effdb90SChristoph Hellwig da->emulate_tpu = flag; 6953effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", 6963effdb90SChristoph Hellwig da->da_dev, flag); 6973effdb90SChristoph Hellwig return count; 6983effdb90SChristoph Hellwig } 6993effdb90SChristoph Hellwig 7002eafd729SChristoph Hellwig static ssize_t emulate_tpws_store(struct config_item *item, 7013effdb90SChristoph Hellwig const char *page, size_t count) 7023effdb90SChristoph Hellwig { 7032eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7043effdb90SChristoph Hellwig bool flag; 7053effdb90SChristoph Hellwig int ret; 7063effdb90SChristoph Hellwig 7073effdb90SChristoph Hellwig ret = strtobool(page, &flag); 7083effdb90SChristoph Hellwig if (ret < 0) 7093effdb90SChristoph Hellwig return ret; 7103effdb90SChristoph Hellwig 7113effdb90SChristoph Hellwig /* 7123effdb90SChristoph Hellwig * We expect this value to be non-zero when generic Block Layer 7133effdb90SChristoph Hellwig * Discard supported is detected iblock_create_virtdevice(). 7143effdb90SChristoph Hellwig */ 7153effdb90SChristoph Hellwig if (flag && !da->max_unmap_block_desc_count) { 7163effdb90SChristoph Hellwig pr_err("Generic Block Discard not supported\n"); 7173effdb90SChristoph Hellwig return -ENOSYS; 7183effdb90SChristoph Hellwig } 7193effdb90SChristoph Hellwig 7203effdb90SChristoph Hellwig da->emulate_tpws = flag; 7213effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", 7223effdb90SChristoph Hellwig da->da_dev, flag); 7233effdb90SChristoph Hellwig return count; 7243effdb90SChristoph Hellwig } 7253effdb90SChristoph Hellwig 7262eafd729SChristoph Hellwig static ssize_t pi_prot_type_store(struct config_item *item, 7273effdb90SChristoph Hellwig const char *page, size_t count) 7283effdb90SChristoph Hellwig { 7292eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7303effdb90SChristoph Hellwig int old_prot = da->pi_prot_type, ret; 7313effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 7323effdb90SChristoph Hellwig u32 flag; 7333effdb90SChristoph Hellwig 7343effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &flag); 7353effdb90SChristoph Hellwig if (ret < 0) 7363effdb90SChristoph Hellwig return ret; 7373effdb90SChristoph Hellwig 7383effdb90SChristoph Hellwig if (flag != 0 && flag != 1 && flag != 2 && flag != 3) { 7393effdb90SChristoph Hellwig pr_err("Illegal value %d for pi_prot_type\n", flag); 7403effdb90SChristoph Hellwig return -EINVAL; 7413effdb90SChristoph Hellwig } 7423effdb90SChristoph Hellwig if (flag == 2) { 7433effdb90SChristoph Hellwig pr_err("DIF TYPE2 protection currently not supported\n"); 7443effdb90SChristoph Hellwig return -ENOSYS; 7453effdb90SChristoph Hellwig } 7463effdb90SChristoph Hellwig if (da->hw_pi_prot_type) { 7473effdb90SChristoph Hellwig pr_warn("DIF protection enabled on underlying hardware," 7483effdb90SChristoph Hellwig " ignoring\n"); 7493effdb90SChristoph Hellwig return count; 7503effdb90SChristoph Hellwig } 7513effdb90SChristoph Hellwig if (!dev->transport->init_prot || !dev->transport->free_prot) { 7523effdb90SChristoph Hellwig /* 0 is only allowed value for non-supporting backends */ 7533effdb90SChristoph Hellwig if (flag == 0) 754bc1a7d6aSAndy Grover return count; 7553effdb90SChristoph Hellwig 7563effdb90SChristoph Hellwig pr_err("DIF protection not supported by backend: %s\n", 7573effdb90SChristoph Hellwig dev->transport->name); 7583effdb90SChristoph Hellwig return -ENOSYS; 7593effdb90SChristoph Hellwig } 7603effdb90SChristoph Hellwig if (!(dev->dev_flags & DF_CONFIGURED)) { 7613effdb90SChristoph Hellwig pr_err("DIF protection requires device to be configured\n"); 7623effdb90SChristoph Hellwig return -ENODEV; 7633effdb90SChristoph Hellwig } 7643effdb90SChristoph Hellwig if (dev->export_count) { 7653effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device PROT type while" 7663effdb90SChristoph Hellwig " export_count is %d\n", dev, dev->export_count); 7673effdb90SChristoph Hellwig return -EINVAL; 7683effdb90SChristoph Hellwig } 7693effdb90SChristoph Hellwig 7703effdb90SChristoph Hellwig da->pi_prot_type = flag; 7713effdb90SChristoph Hellwig 7723effdb90SChristoph Hellwig if (flag && !old_prot) { 7733effdb90SChristoph Hellwig ret = dev->transport->init_prot(dev); 7743effdb90SChristoph Hellwig if (ret) { 7753effdb90SChristoph Hellwig da->pi_prot_type = old_prot; 7763effdb90SChristoph Hellwig return ret; 7773effdb90SChristoph Hellwig } 7783effdb90SChristoph Hellwig 7793effdb90SChristoph Hellwig } else if (!flag && old_prot) { 7803effdb90SChristoph Hellwig dev->transport->free_prot(dev); 7813effdb90SChristoph Hellwig } 7823effdb90SChristoph Hellwig 7833effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag); 7843effdb90SChristoph Hellwig return count; 7853effdb90SChristoph Hellwig } 7863effdb90SChristoph Hellwig 7872eafd729SChristoph Hellwig static ssize_t pi_prot_format_store(struct config_item *item, 7883effdb90SChristoph Hellwig const char *page, size_t count) 7893effdb90SChristoph Hellwig { 7902eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7913effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 7923effdb90SChristoph Hellwig bool flag; 7933effdb90SChristoph Hellwig int ret; 7943effdb90SChristoph Hellwig 7953effdb90SChristoph Hellwig ret = strtobool(page, &flag); 7963effdb90SChristoph Hellwig if (ret < 0) 7973effdb90SChristoph Hellwig return ret; 7983effdb90SChristoph Hellwig 7993effdb90SChristoph Hellwig if (!flag) 8003effdb90SChristoph Hellwig return count; 8013effdb90SChristoph Hellwig 8023effdb90SChristoph Hellwig if (!dev->transport->format_prot) { 8033effdb90SChristoph Hellwig pr_err("DIF protection format not supported by backend %s\n", 8043effdb90SChristoph Hellwig dev->transport->name); 8053effdb90SChristoph Hellwig return -ENOSYS; 8063effdb90SChristoph Hellwig } 8073effdb90SChristoph Hellwig if (!(dev->dev_flags & DF_CONFIGURED)) { 8083effdb90SChristoph Hellwig pr_err("DIF protection format requires device to be configured\n"); 8093effdb90SChristoph Hellwig return -ENODEV; 8103effdb90SChristoph Hellwig } 8113effdb90SChristoph Hellwig if (dev->export_count) { 8123effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to format SE Device PROT type while" 8133effdb90SChristoph Hellwig " export_count is %d\n", dev, dev->export_count); 8143effdb90SChristoph Hellwig return -EINVAL; 8153effdb90SChristoph Hellwig } 8163effdb90SChristoph Hellwig 8173effdb90SChristoph Hellwig ret = dev->transport->format_prot(dev); 8183effdb90SChristoph Hellwig if (ret) 8193effdb90SChristoph Hellwig return ret; 8203effdb90SChristoph Hellwig 8213effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Protection Format complete\n", dev); 8223effdb90SChristoph Hellwig return count; 8233effdb90SChristoph Hellwig } 8243effdb90SChristoph Hellwig 8252eafd729SChristoph Hellwig static ssize_t force_pr_aptpl_store(struct config_item *item, 8263effdb90SChristoph Hellwig const char *page, size_t count) 8273effdb90SChristoph Hellwig { 8282eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 8293effdb90SChristoph Hellwig bool flag; 8303effdb90SChristoph Hellwig int ret; 8313effdb90SChristoph Hellwig 8323effdb90SChristoph Hellwig ret = strtobool(page, &flag); 8333effdb90SChristoph Hellwig if (ret < 0) 8343effdb90SChristoph Hellwig return ret; 8353effdb90SChristoph Hellwig if (da->da_dev->export_count) { 8363effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to set force_pr_aptpl while" 8373effdb90SChristoph Hellwig " export_count is %d\n", 8383effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 8393effdb90SChristoph Hellwig return -EINVAL; 8403effdb90SChristoph Hellwig } 8413effdb90SChristoph Hellwig 8423effdb90SChristoph Hellwig da->force_pr_aptpl = flag; 8433effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", da->da_dev, flag); 8443effdb90SChristoph Hellwig return count; 8453effdb90SChristoph Hellwig } 8463effdb90SChristoph Hellwig 8472eafd729SChristoph Hellwig static ssize_t emulate_rest_reord_store(struct config_item *item, 8483effdb90SChristoph Hellwig const char *page, size_t count) 8493effdb90SChristoph Hellwig { 8502eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 8513effdb90SChristoph Hellwig bool flag; 8523effdb90SChristoph Hellwig int ret; 8533effdb90SChristoph Hellwig 8543effdb90SChristoph Hellwig ret = strtobool(page, &flag); 8553effdb90SChristoph Hellwig if (ret < 0) 8563effdb90SChristoph Hellwig return ret; 8573effdb90SChristoph Hellwig 8583effdb90SChristoph Hellwig if (flag != 0) { 8593effdb90SChristoph Hellwig printk(KERN_ERR "dev[%p]: SE Device emulation of restricted" 8603effdb90SChristoph Hellwig " reordering not implemented\n", da->da_dev); 8613effdb90SChristoph Hellwig return -ENOSYS; 8623effdb90SChristoph Hellwig } 8633effdb90SChristoph Hellwig da->emulate_rest_reord = flag; 8643effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", 8653effdb90SChristoph Hellwig da->da_dev, flag); 8663effdb90SChristoph Hellwig return count; 8673effdb90SChristoph Hellwig } 8683effdb90SChristoph Hellwig 8693effdb90SChristoph Hellwig /* 8703effdb90SChristoph Hellwig * Note, this can only be called on unexported SE Device Object. 8713effdb90SChristoph Hellwig */ 8722eafd729SChristoph Hellwig static ssize_t queue_depth_store(struct config_item *item, 8733effdb90SChristoph Hellwig const char *page, size_t count) 8743effdb90SChristoph Hellwig { 8752eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 8763effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 8773effdb90SChristoph Hellwig u32 val; 8783effdb90SChristoph Hellwig int ret; 8793effdb90SChristoph Hellwig 8803effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 8813effdb90SChristoph Hellwig if (ret < 0) 8823effdb90SChristoph Hellwig return ret; 8833effdb90SChristoph Hellwig 8843effdb90SChristoph Hellwig if (dev->export_count) { 8853effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device TCQ while" 8863effdb90SChristoph Hellwig " export_count is %d\n", 8873effdb90SChristoph Hellwig dev, dev->export_count); 8883effdb90SChristoph Hellwig return -EINVAL; 8893effdb90SChristoph Hellwig } 8903effdb90SChristoph Hellwig if (!val) { 8913effdb90SChristoph Hellwig pr_err("dev[%p]: Illegal ZERO value for queue_depth\n", dev); 8923effdb90SChristoph Hellwig return -EINVAL; 8933effdb90SChristoph Hellwig } 8943effdb90SChristoph Hellwig 8953effdb90SChristoph Hellwig if (val > dev->dev_attrib.queue_depth) { 8963effdb90SChristoph Hellwig if (val > dev->dev_attrib.hw_queue_depth) { 8973effdb90SChristoph Hellwig pr_err("dev[%p]: Passed queue_depth:" 8983effdb90SChristoph Hellwig " %u exceeds TCM/SE_Device MAX" 8993effdb90SChristoph Hellwig " TCQ: %u\n", dev, val, 9003effdb90SChristoph Hellwig dev->dev_attrib.hw_queue_depth); 9013effdb90SChristoph Hellwig return -EINVAL; 9023effdb90SChristoph Hellwig } 9033effdb90SChristoph Hellwig } 9043effdb90SChristoph Hellwig da->queue_depth = dev->queue_depth = val; 9053effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", dev, val); 9063effdb90SChristoph Hellwig return count; 9073effdb90SChristoph Hellwig } 9083effdb90SChristoph Hellwig 9092eafd729SChristoph Hellwig static ssize_t optimal_sectors_store(struct config_item *item, 9103effdb90SChristoph Hellwig const char *page, size_t count) 9113effdb90SChristoph Hellwig { 9122eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9133effdb90SChristoph Hellwig u32 val; 9143effdb90SChristoph Hellwig int ret; 9153effdb90SChristoph Hellwig 9163effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 9173effdb90SChristoph Hellwig if (ret < 0) 9183effdb90SChristoph Hellwig return ret; 9193effdb90SChristoph Hellwig 9203effdb90SChristoph Hellwig if (da->da_dev->export_count) { 9213effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device" 9223effdb90SChristoph Hellwig " optimal_sectors while export_count is %d\n", 9233effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 9243effdb90SChristoph Hellwig return -EINVAL; 9253effdb90SChristoph Hellwig } 9263effdb90SChristoph Hellwig if (val > da->hw_max_sectors) { 9273effdb90SChristoph Hellwig pr_err("dev[%p]: Passed optimal_sectors %u cannot be" 9283effdb90SChristoph Hellwig " greater than hw_max_sectors: %u\n", 9293effdb90SChristoph Hellwig da->da_dev, val, da->hw_max_sectors); 9303effdb90SChristoph Hellwig return -EINVAL; 9313effdb90SChristoph Hellwig } 9323effdb90SChristoph Hellwig 9333effdb90SChristoph Hellwig da->optimal_sectors = val; 9343effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", 9353effdb90SChristoph Hellwig da->da_dev, val); 9363effdb90SChristoph Hellwig return count; 9373effdb90SChristoph Hellwig } 9383effdb90SChristoph Hellwig 9392eafd729SChristoph Hellwig static ssize_t block_size_store(struct config_item *item, 9403effdb90SChristoph Hellwig const char *page, size_t count) 9413effdb90SChristoph Hellwig { 9422eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9433effdb90SChristoph Hellwig u32 val; 9443effdb90SChristoph Hellwig int ret; 9453effdb90SChristoph Hellwig 9463effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 9473effdb90SChristoph Hellwig if (ret < 0) 9483effdb90SChristoph Hellwig return ret; 9493effdb90SChristoph Hellwig 9503effdb90SChristoph Hellwig if (da->da_dev->export_count) { 9513effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device block_size" 9523effdb90SChristoph Hellwig " while export_count is %d\n", 9533effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 9543effdb90SChristoph Hellwig return -EINVAL; 9553effdb90SChristoph Hellwig } 9563effdb90SChristoph Hellwig 9573effdb90SChristoph Hellwig if (val != 512 && val != 1024 && val != 2048 && val != 4096) { 9583effdb90SChristoph Hellwig pr_err("dev[%p]: Illegal value for block_device: %u" 9593effdb90SChristoph Hellwig " for SE device, must be 512, 1024, 2048 or 4096\n", 9603effdb90SChristoph Hellwig da->da_dev, val); 9613effdb90SChristoph Hellwig return -EINVAL; 9623effdb90SChristoph Hellwig } 9633effdb90SChristoph Hellwig 9643effdb90SChristoph Hellwig da->block_size = val; 9653effdb90SChristoph Hellwig if (da->max_bytes_per_io) 9663effdb90SChristoph Hellwig da->hw_max_sectors = da->max_bytes_per_io / val; 9673effdb90SChristoph Hellwig 9683effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device block_size changed to %u\n", 9693effdb90SChristoph Hellwig da->da_dev, val); 9703effdb90SChristoph Hellwig return count; 9713effdb90SChristoph Hellwig } 9725873c4d1SChristoph Hellwig 9732eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_model_alias); 9742eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_dpo); 9752eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_fua_write); 9762eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_fua_read); 9772eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_write_cache); 9782eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_ua_intlck_ctrl); 9792eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tas); 9802eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tpu); 9812eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tpws); 9822eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_caw); 9832eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_3pc); 9842eafd729SChristoph Hellwig CONFIGFS_ATTR(, pi_prot_type); 9852eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_pi_prot_type); 9862eafd729SChristoph Hellwig CONFIGFS_ATTR(, pi_prot_format); 9872eafd729SChristoph Hellwig CONFIGFS_ATTR(, enforce_pr_isids); 9882eafd729SChristoph Hellwig CONFIGFS_ATTR(, is_nonrot); 9892eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_rest_reord); 9902eafd729SChristoph Hellwig CONFIGFS_ATTR(, force_pr_aptpl); 9912eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_block_size); 9922eafd729SChristoph Hellwig CONFIGFS_ATTR(, block_size); 9932eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_max_sectors); 9942eafd729SChristoph Hellwig CONFIGFS_ATTR(, optimal_sectors); 9952eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_queue_depth); 9962eafd729SChristoph Hellwig CONFIGFS_ATTR(, queue_depth); 9972eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_unmap_lba_count); 9982eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_unmap_block_desc_count); 9992eafd729SChristoph Hellwig CONFIGFS_ATTR(, unmap_granularity); 10002eafd729SChristoph Hellwig CONFIGFS_ATTR(, unmap_granularity_alignment); 10012eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_write_same_len); 1002c66ac9dbSNicholas Bellinger 10035873c4d1SChristoph Hellwig /* 10045873c4d1SChristoph Hellwig * dev_attrib attributes for devices using the target core SBC/SPC 10055873c4d1SChristoph Hellwig * interpreter. Any backend using spc_parse_cdb should be using 10065873c4d1SChristoph Hellwig * these. 10075873c4d1SChristoph Hellwig */ 10085873c4d1SChristoph Hellwig struct configfs_attribute *sbc_attrib_attrs[] = { 10092eafd729SChristoph Hellwig &attr_emulate_model_alias, 10102eafd729SChristoph Hellwig &attr_emulate_dpo, 10112eafd729SChristoph Hellwig &attr_emulate_fua_write, 10122eafd729SChristoph Hellwig &attr_emulate_fua_read, 10132eafd729SChristoph Hellwig &attr_emulate_write_cache, 10142eafd729SChristoph Hellwig &attr_emulate_ua_intlck_ctrl, 10152eafd729SChristoph Hellwig &attr_emulate_tas, 10162eafd729SChristoph Hellwig &attr_emulate_tpu, 10172eafd729SChristoph Hellwig &attr_emulate_tpws, 10182eafd729SChristoph Hellwig &attr_emulate_caw, 10192eafd729SChristoph Hellwig &attr_emulate_3pc, 10202eafd729SChristoph Hellwig &attr_pi_prot_type, 10212eafd729SChristoph Hellwig &attr_hw_pi_prot_type, 10222eafd729SChristoph Hellwig &attr_pi_prot_format, 10232eafd729SChristoph Hellwig &attr_enforce_pr_isids, 10242eafd729SChristoph Hellwig &attr_is_nonrot, 10252eafd729SChristoph Hellwig &attr_emulate_rest_reord, 10262eafd729SChristoph Hellwig &attr_force_pr_aptpl, 10272eafd729SChristoph Hellwig &attr_hw_block_size, 10282eafd729SChristoph Hellwig &attr_block_size, 10292eafd729SChristoph Hellwig &attr_hw_max_sectors, 10302eafd729SChristoph Hellwig &attr_optimal_sectors, 10312eafd729SChristoph Hellwig &attr_hw_queue_depth, 10322eafd729SChristoph Hellwig &attr_queue_depth, 10332eafd729SChristoph Hellwig &attr_max_unmap_lba_count, 10342eafd729SChristoph Hellwig &attr_max_unmap_block_desc_count, 10352eafd729SChristoph Hellwig &attr_unmap_granularity, 10362eafd729SChristoph Hellwig &attr_unmap_granularity_alignment, 10372eafd729SChristoph Hellwig &attr_max_write_same_len, 10385873c4d1SChristoph Hellwig NULL, 10395873c4d1SChristoph Hellwig }; 10405873c4d1SChristoph Hellwig EXPORT_SYMBOL(sbc_attrib_attrs); 10415873c4d1SChristoph Hellwig 10425873c4d1SChristoph Hellwig /* 10435873c4d1SChristoph Hellwig * Minimal dev_attrib attributes for devices passing through CDBs. 10445873c4d1SChristoph Hellwig * In this case we only provide a few read-only attributes for 10455873c4d1SChristoph Hellwig * backwards compatibility. 10465873c4d1SChristoph Hellwig */ 10475873c4d1SChristoph Hellwig struct configfs_attribute *passthrough_attrib_attrs[] = { 10482eafd729SChristoph Hellwig &attr_hw_pi_prot_type, 10492eafd729SChristoph Hellwig &attr_hw_block_size, 10502eafd729SChristoph Hellwig &attr_hw_max_sectors, 10512eafd729SChristoph Hellwig &attr_hw_queue_depth, 10525873c4d1SChristoph Hellwig NULL, 10535873c4d1SChristoph Hellwig }; 10545873c4d1SChristoph Hellwig EXPORT_SYMBOL(passthrough_attrib_attrs); 10555873c4d1SChristoph Hellwig 10562eafd729SChristoph Hellwig TB_CIT_SETUP_DRV(dev_attrib, NULL, NULL); 1057c66ac9dbSNicholas Bellinger 1058f79a897eSNicholas Bellinger /* End functions for struct config_item_type tb_dev_attrib_cit */ 1059c66ac9dbSNicholas Bellinger 1060f8d389c6SNicholas Bellinger /* Start functions for struct config_item_type tb_dev_wwn_cit */ 1061c66ac9dbSNicholas Bellinger 10622eafd729SChristoph Hellwig static struct t10_wwn *to_t10_wwn(struct config_item *item) 10632eafd729SChristoph Hellwig { 10642eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_wwn, t10_wwn_group); 10652eafd729SChristoph Hellwig } 1066c66ac9dbSNicholas Bellinger 1067c66ac9dbSNicholas Bellinger /* 1068c66ac9dbSNicholas Bellinger * VPD page 0x80 Unit serial 1069c66ac9dbSNicholas Bellinger */ 10702eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_unit_serial_show(struct config_item *item, 1071c66ac9dbSNicholas Bellinger char *page) 1072c66ac9dbSNicholas Bellinger { 1073c66ac9dbSNicholas Bellinger return sprintf(page, "T10 VPD Unit Serial Number: %s\n", 10742eafd729SChristoph Hellwig &to_t10_wwn(item)->unit_serial[0]); 1075c66ac9dbSNicholas Bellinger } 1076c66ac9dbSNicholas Bellinger 10772eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_unit_serial_store(struct config_item *item, 10782eafd729SChristoph Hellwig const char *page, size_t count) 1079c66ac9dbSNicholas Bellinger { 10802eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); 10810fd97ccfSChristoph Hellwig struct se_device *dev = t10_wwn->t10_dev; 1082c66ac9dbSNicholas Bellinger unsigned char buf[INQUIRY_VPD_SERIAL_LEN]; 1083c66ac9dbSNicholas Bellinger 1084c66ac9dbSNicholas Bellinger /* 1085c66ac9dbSNicholas Bellinger * If Linux/SCSI subsystem_api_t plugin got a VPD Unit Serial 1086c66ac9dbSNicholas Bellinger * from the struct scsi_device level firmware, do not allow 1087c66ac9dbSNicholas Bellinger * VPD Unit Serial to be emulated. 1088c66ac9dbSNicholas Bellinger * 1089c66ac9dbSNicholas Bellinger * Note this struct scsi_device could also be emulating VPD 1090c66ac9dbSNicholas Bellinger * information from its drivers/scsi LLD. But for now we assume 1091c66ac9dbSNicholas Bellinger * it is doing 'the right thing' wrt a world wide unique 1092c66ac9dbSNicholas Bellinger * VPD Unit Serial Number that OS dependent multipath can depend on. 1093c66ac9dbSNicholas Bellinger */ 10940fd97ccfSChristoph Hellwig if (dev->dev_flags & DF_FIRMWARE_VPD_UNIT_SERIAL) { 10956708bb27SAndy Grover pr_err("Underlying SCSI device firmware provided VPD" 1096c66ac9dbSNicholas Bellinger " Unit Serial, ignoring request\n"); 1097c66ac9dbSNicholas Bellinger return -EOPNOTSUPP; 1098c66ac9dbSNicholas Bellinger } 1099c66ac9dbSNicholas Bellinger 110060d645a4SDan Carpenter if (strlen(page) >= INQUIRY_VPD_SERIAL_LEN) { 11016708bb27SAndy Grover pr_err("Emulated VPD Unit Serial exceeds" 1102c66ac9dbSNicholas Bellinger " INQUIRY_VPD_SERIAL_LEN: %d\n", INQUIRY_VPD_SERIAL_LEN); 1103c66ac9dbSNicholas Bellinger return -EOVERFLOW; 1104c66ac9dbSNicholas Bellinger } 1105c66ac9dbSNicholas Bellinger /* 1106c66ac9dbSNicholas Bellinger * Check to see if any active $FABRIC_MOD exports exist. If they 1107c66ac9dbSNicholas Bellinger * do exist, fail here as changing this information on the fly 1108c66ac9dbSNicholas Bellinger * (underneath the initiator side OS dependent multipath code) 1109c66ac9dbSNicholas Bellinger * could cause negative effects. 1110c66ac9dbSNicholas Bellinger */ 11110fd97ccfSChristoph Hellwig if (dev->export_count) { 11126708bb27SAndy Grover pr_err("Unable to set VPD Unit Serial while" 1113c66ac9dbSNicholas Bellinger " active %d $FABRIC_MOD exports exist\n", 11140fd97ccfSChristoph Hellwig dev->export_count); 1115c66ac9dbSNicholas Bellinger return -EINVAL; 1116c66ac9dbSNicholas Bellinger } 11170fd97ccfSChristoph Hellwig 1118c66ac9dbSNicholas Bellinger /* 1119c66ac9dbSNicholas Bellinger * This currently assumes ASCII encoding for emulated VPD Unit Serial. 1120c66ac9dbSNicholas Bellinger * 1121c66ac9dbSNicholas Bellinger * Also, strip any newline added from the userspace 1122c66ac9dbSNicholas Bellinger * echo $UUID > $TARGET/$HBA/$STORAGE_OBJECT/wwn/vpd_unit_serial 1123c66ac9dbSNicholas Bellinger */ 1124c66ac9dbSNicholas Bellinger memset(buf, 0, INQUIRY_VPD_SERIAL_LEN); 1125c66ac9dbSNicholas Bellinger snprintf(buf, INQUIRY_VPD_SERIAL_LEN, "%s", page); 11260fd97ccfSChristoph Hellwig snprintf(dev->t10_wwn.unit_serial, INQUIRY_VPD_SERIAL_LEN, 1127c66ac9dbSNicholas Bellinger "%s", strstrip(buf)); 11280fd97ccfSChristoph Hellwig dev->dev_flags |= DF_EMULATED_VPD_UNIT_SERIAL; 1129c66ac9dbSNicholas Bellinger 11306708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set emulated VPD Unit Serial:" 11310fd97ccfSChristoph Hellwig " %s\n", dev->t10_wwn.unit_serial); 1132c66ac9dbSNicholas Bellinger 1133c66ac9dbSNicholas Bellinger return count; 1134c66ac9dbSNicholas Bellinger } 1135c66ac9dbSNicholas Bellinger 1136c66ac9dbSNicholas Bellinger /* 1137c66ac9dbSNicholas Bellinger * VPD page 0x83 Protocol Identifier 1138c66ac9dbSNicholas Bellinger */ 11392eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_protocol_identifier_show(struct config_item *item, 1140c66ac9dbSNicholas Bellinger char *page) 1141c66ac9dbSNicholas Bellinger { 11422eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); 1143c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; 1144c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; 1145c66ac9dbSNicholas Bellinger ssize_t len = 0; 1146c66ac9dbSNicholas Bellinger 1147c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); 1148c66ac9dbSNicholas Bellinger 1149c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); 1150c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { 11516708bb27SAndy Grover if (!vpd->protocol_identifier_set) 1152c66ac9dbSNicholas Bellinger continue; 1153c66ac9dbSNicholas Bellinger 1154c66ac9dbSNicholas Bellinger transport_dump_vpd_proto_id(vpd, buf, VPD_TMP_BUF_SIZE); 1155c66ac9dbSNicholas Bellinger 11566708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) 1157c66ac9dbSNicholas Bellinger break; 1158c66ac9dbSNicholas Bellinger 1159c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 1160c66ac9dbSNicholas Bellinger } 1161c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); 1162c66ac9dbSNicholas Bellinger 1163c66ac9dbSNicholas Bellinger return len; 1164c66ac9dbSNicholas Bellinger } 1165c66ac9dbSNicholas Bellinger 1166c66ac9dbSNicholas Bellinger /* 1167c66ac9dbSNicholas Bellinger * Generic wrapper for dumping VPD identifiers by association. 1168c66ac9dbSNicholas Bellinger */ 1169c66ac9dbSNicholas Bellinger #define DEF_DEV_WWN_ASSOC_SHOW(_name, _assoc) \ 11702eafd729SChristoph Hellwig static ssize_t target_wwn_##_name##_show(struct config_item *item, \ 1171c66ac9dbSNicholas Bellinger char *page) \ 1172c66ac9dbSNicholas Bellinger { \ 11732eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); \ 1174c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; \ 1175c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; \ 1176c66ac9dbSNicholas Bellinger ssize_t len = 0; \ 1177c66ac9dbSNicholas Bellinger \ 1178c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); \ 1179c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { \ 1180c66ac9dbSNicholas Bellinger if (vpd->association != _assoc) \ 1181c66ac9dbSNicholas Bellinger continue; \ 1182c66ac9dbSNicholas Bellinger \ 1183c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1184c66ac9dbSNicholas Bellinger transport_dump_vpd_assoc(vpd, buf, VPD_TMP_BUF_SIZE); \ 11856708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1186c66ac9dbSNicholas Bellinger break; \ 1187c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1188c66ac9dbSNicholas Bellinger \ 1189c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1190c66ac9dbSNicholas Bellinger transport_dump_vpd_ident_type(vpd, buf, VPD_TMP_BUF_SIZE); \ 11916708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1192c66ac9dbSNicholas Bellinger break; \ 1193c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1194c66ac9dbSNicholas Bellinger \ 1195c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1196c66ac9dbSNicholas Bellinger transport_dump_vpd_ident(vpd, buf, VPD_TMP_BUF_SIZE); \ 11976708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1198c66ac9dbSNicholas Bellinger break; \ 1199c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1200c66ac9dbSNicholas Bellinger } \ 1201c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); \ 1202c66ac9dbSNicholas Bellinger \ 1203c66ac9dbSNicholas Bellinger return len; \ 1204c66ac9dbSNicholas Bellinger } 1205c66ac9dbSNicholas Bellinger 12062eafd729SChristoph Hellwig /* VPD page 0x83 Association: Logical Unit */ 1207c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_logical_unit, 0x00); 12082eafd729SChristoph Hellwig /* VPD page 0x83 Association: Target Port */ 1209c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_target_port, 0x10); 12102eafd729SChristoph Hellwig /* VPD page 0x83 Association: SCSI Target Device */ 1211c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_scsi_target_device, 0x20); 1212c66ac9dbSNicholas Bellinger 12132eafd729SChristoph Hellwig CONFIGFS_ATTR(target_wwn_, vpd_unit_serial); 12142eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_protocol_identifier); 12152eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_logical_unit); 12162eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_target_port); 12172eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_scsi_target_device); 1218c66ac9dbSNicholas Bellinger 1219c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_wwn_attrs[] = { 12202eafd729SChristoph Hellwig &target_wwn_attr_vpd_unit_serial, 12212eafd729SChristoph Hellwig &target_wwn_attr_vpd_protocol_identifier, 12222eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_logical_unit, 12232eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_target_port, 12242eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_scsi_target_device, 1225c66ac9dbSNicholas Bellinger NULL, 1226c66ac9dbSNicholas Bellinger }; 1227c66ac9dbSNicholas Bellinger 12282eafd729SChristoph Hellwig TB_CIT_SETUP(dev_wwn, NULL, NULL, target_core_dev_wwn_attrs); 1229c66ac9dbSNicholas Bellinger 1230f8d389c6SNicholas Bellinger /* End functions for struct config_item_type tb_dev_wwn_cit */ 1231c66ac9dbSNicholas Bellinger 123291e2e39bSNicholas Bellinger /* Start functions for struct config_item_type tb_dev_pr_cit */ 1233c66ac9dbSNicholas Bellinger 12342eafd729SChristoph Hellwig static struct se_device *pr_to_dev(struct config_item *item) 12352eafd729SChristoph Hellwig { 12362eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_device, 12372eafd729SChristoph Hellwig dev_pr_group); 12382eafd729SChristoph Hellwig } 1239c66ac9dbSNicholas Bellinger 1240d977f437SChristoph Hellwig static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev, 1241d977f437SChristoph Hellwig char *page) 1242c66ac9dbSNicholas Bellinger { 1243c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1244c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1245c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1246c66ac9dbSNicholas Bellinger 1247c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1248c66ac9dbSNicholas Bellinger 1249c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1250d977f437SChristoph Hellwig if (!pr_reg) 1251d977f437SChristoph Hellwig return sprintf(page, "No SPC-3 Reservation holder\n"); 1252d977f437SChristoph Hellwig 1253c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1254d2843c17SAndy Grover core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); 1255c66ac9dbSNicholas Bellinger 1256d977f437SChristoph Hellwig return sprintf(page, "SPC-3 Reservation: %s Initiator: %s%s\n", 1257e3d6f909SAndy Grover se_nacl->se_tpg->se_tpg_tfo->get_fabric_name(), 1258d2843c17SAndy Grover se_nacl->initiatorname, i_buf); 1259c66ac9dbSNicholas Bellinger } 1260c66ac9dbSNicholas Bellinger 1261d977f437SChristoph Hellwig static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev, 1262d977f437SChristoph Hellwig char *page) 1263c66ac9dbSNicholas Bellinger { 1264c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1265d977f437SChristoph Hellwig ssize_t len; 1266c66ac9dbSNicholas Bellinger 1267c66ac9dbSNicholas Bellinger se_nacl = dev->dev_reserved_node_acl; 1268d977f437SChristoph Hellwig if (se_nacl) { 1269d977f437SChristoph Hellwig len = sprintf(page, 1270d977f437SChristoph Hellwig "SPC-2 Reservation: %s Initiator: %s\n", 1271e3d6f909SAndy Grover se_nacl->se_tpg->se_tpg_tfo->get_fabric_name(), 1272c66ac9dbSNicholas Bellinger se_nacl->initiatorname); 1273d977f437SChristoph Hellwig } else { 1274d977f437SChristoph Hellwig len = sprintf(page, "No SPC-2 Reservation holder\n"); 1275d977f437SChristoph Hellwig } 1276d977f437SChristoph Hellwig return len; 1277c66ac9dbSNicholas Bellinger } 1278c66ac9dbSNicholas Bellinger 12792eafd729SChristoph Hellwig static ssize_t target_pr_res_holder_show(struct config_item *item, char *page) 1280c66ac9dbSNicholas Bellinger { 12812eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1282d977f437SChristoph Hellwig int ret; 1283c66ac9dbSNicholas Bellinger 1284a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1285d977f437SChristoph Hellwig return sprintf(page, "Passthrough\n"); 1286c66ac9dbSNicholas Bellinger 1287d977f437SChristoph Hellwig spin_lock(&dev->dev_reservation_lock); 1288d977f437SChristoph Hellwig if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 1289d977f437SChristoph Hellwig ret = target_core_dev_pr_show_spc2_res(dev, page); 1290d977f437SChristoph Hellwig else 1291d977f437SChristoph Hellwig ret = target_core_dev_pr_show_spc3_res(dev, page); 1292d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1293d977f437SChristoph Hellwig return ret; 1294c66ac9dbSNicholas Bellinger } 1295c66ac9dbSNicholas Bellinger 12962eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_all_tgt_pts_show(struct config_item *item, 12972eafd729SChristoph Hellwig char *page) 1298c66ac9dbSNicholas Bellinger { 12992eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1300c66ac9dbSNicholas Bellinger ssize_t len = 0; 1301c66ac9dbSNicholas Bellinger 1302c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1303d977f437SChristoph Hellwig if (!dev->dev_pr_res_holder) { 1304c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1305d977f437SChristoph Hellwig } else if (dev->dev_pr_res_holder->pr_reg_all_tg_pt) { 1306c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: All Target" 1307c66ac9dbSNicholas Bellinger " Ports registration\n"); 1308d977f437SChristoph Hellwig } else { 1309c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: Single" 1310c66ac9dbSNicholas Bellinger " Target Port registration\n"); 1311d977f437SChristoph Hellwig } 1312c66ac9dbSNicholas Bellinger 1313d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1314c66ac9dbSNicholas Bellinger return len; 1315c66ac9dbSNicholas Bellinger } 1316c66ac9dbSNicholas Bellinger 13172eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_generation_show(struct config_item *item, 13182eafd729SChristoph Hellwig char *page) 1319c66ac9dbSNicholas Bellinger { 13202eafd729SChristoph Hellwig return sprintf(page, "0x%08x\n", pr_to_dev(item)->t10_pr.pr_generation); 1321c66ac9dbSNicholas Bellinger } 1322c66ac9dbSNicholas Bellinger 1323c66ac9dbSNicholas Bellinger 13242eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_holder_tg_port_show(struct config_item *item, 13252eafd729SChristoph Hellwig char *page) 1326c66ac9dbSNicholas Bellinger { 13272eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1328c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1329c66ac9dbSNicholas Bellinger struct se_portal_group *se_tpg; 1330c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 13319ac8928eSChristoph Hellwig const struct target_core_fabric_ops *tfo; 1332c66ac9dbSNicholas Bellinger ssize_t len = 0; 1333c66ac9dbSNicholas Bellinger 1334c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1335c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 13366708bb27SAndy Grover if (!pr_reg) { 1337c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1338d977f437SChristoph Hellwig goto out_unlock; 1339c66ac9dbSNicholas Bellinger } 1340d977f437SChristoph Hellwig 1341c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1342c66ac9dbSNicholas Bellinger se_tpg = se_nacl->se_tpg; 1343e3d6f909SAndy Grover tfo = se_tpg->se_tpg_tfo; 1344c66ac9dbSNicholas Bellinger 1345c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: %s" 1346c66ac9dbSNicholas Bellinger " Target Node Endpoint: %s\n", tfo->get_fabric_name(), 1347c66ac9dbSNicholas Bellinger tfo->tpg_get_wwn(se_tpg)); 1348c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: Relative Port" 134935d1efe8SMasanari Iida " Identifier Tag: %hu %s Portal Group Tag: %hu" 1350f2d30680SHannes Reinecke " %s Logical Unit: %llu\n", pr_reg->tg_pt_sep_rtpi, 1351c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg), 135279dc9c9eSNicholas Bellinger tfo->get_fabric_name(), pr_reg->pr_aptpl_target_lun); 1353c66ac9dbSNicholas Bellinger 1354d977f437SChristoph Hellwig out_unlock: 1355d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1356c66ac9dbSNicholas Bellinger return len; 1357c66ac9dbSNicholas Bellinger } 1358c66ac9dbSNicholas Bellinger 1359c66ac9dbSNicholas Bellinger 13602eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_registered_i_pts_show(struct config_item *item, 13612eafd729SChristoph Hellwig char *page) 1362c66ac9dbSNicholas Bellinger { 13632eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 13649ac8928eSChristoph Hellwig const struct target_core_fabric_ops *tfo; 1365c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1366c66ac9dbSNicholas Bellinger unsigned char buf[384]; 1367c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1368c66ac9dbSNicholas Bellinger ssize_t len = 0; 1369d2843c17SAndy Grover int reg_count = 0; 1370c66ac9dbSNicholas Bellinger 1371c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 PR Registrations:\n"); 1372c66ac9dbSNicholas Bellinger 13730fd97ccfSChristoph Hellwig spin_lock(&dev->t10_pr.registration_lock); 13740fd97ccfSChristoph Hellwig list_for_each_entry(pr_reg, &dev->t10_pr.registration_list, 1375c66ac9dbSNicholas Bellinger pr_reg_list) { 1376c66ac9dbSNicholas Bellinger 1377c66ac9dbSNicholas Bellinger memset(buf, 0, 384); 1378c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1379c66ac9dbSNicholas Bellinger tfo = pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo; 1380d2843c17SAndy Grover core_pr_dump_initiator_port(pr_reg, i_buf, 1381c66ac9dbSNicholas Bellinger PR_REG_ISID_ID_LEN); 1382c66ac9dbSNicholas Bellinger sprintf(buf, "%s Node: %s%s Key: 0x%016Lx PRgen: 0x%08x\n", 1383c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), 1384d2843c17SAndy Grover pr_reg->pr_reg_nacl->initiatorname, i_buf, pr_reg->pr_res_key, 1385c66ac9dbSNicholas Bellinger pr_reg->pr_res_generation); 1386c66ac9dbSNicholas Bellinger 13876708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) 1388c66ac9dbSNicholas Bellinger break; 1389c66ac9dbSNicholas Bellinger 1390c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 1391c66ac9dbSNicholas Bellinger reg_count++; 1392c66ac9dbSNicholas Bellinger } 13930fd97ccfSChristoph Hellwig spin_unlock(&dev->t10_pr.registration_lock); 1394c66ac9dbSNicholas Bellinger 13956708bb27SAndy Grover if (!reg_count) 1396c66ac9dbSNicholas Bellinger len += sprintf(page+len, "None\n"); 1397c66ac9dbSNicholas Bellinger 1398c66ac9dbSNicholas Bellinger return len; 1399c66ac9dbSNicholas Bellinger } 1400c66ac9dbSNicholas Bellinger 14012eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_type_show(struct config_item *item, char *page) 1402c66ac9dbSNicholas Bellinger { 14032eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1404c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1405c66ac9dbSNicholas Bellinger ssize_t len = 0; 1406c66ac9dbSNicholas Bellinger 1407c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1408c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1409d977f437SChristoph Hellwig if (pr_reg) { 1410c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation Type: %s\n", 1411c66ac9dbSNicholas Bellinger core_scsi3_pr_dump_type(pr_reg->pr_res_type)); 1412d977f437SChristoph Hellwig } else { 1413d977f437SChristoph Hellwig len = sprintf(page, "No SPC-3 Reservation holder\n"); 1414d977f437SChristoph Hellwig } 1415c66ac9dbSNicholas Bellinger 1416d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1417c66ac9dbSNicholas Bellinger return len; 1418c66ac9dbSNicholas Bellinger } 1419c66ac9dbSNicholas Bellinger 14202eafd729SChristoph Hellwig static ssize_t target_pr_res_type_show(struct config_item *item, char *page) 1421c66ac9dbSNicholas Bellinger { 14222eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14232eafd729SChristoph Hellwig 1424a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1425d977f437SChristoph Hellwig return sprintf(page, "SPC_PASSTHROUGH\n"); 1426d977f437SChristoph Hellwig else if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 1427d977f437SChristoph Hellwig return sprintf(page, "SPC2_RESERVATIONS\n"); 1428d977f437SChristoph Hellwig else 1429d977f437SChristoph Hellwig return sprintf(page, "SPC3_PERSISTENT_RESERVATIONS\n"); 1430c66ac9dbSNicholas Bellinger } 1431c66ac9dbSNicholas Bellinger 14322eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_active_show(struct config_item *item, 14332eafd729SChristoph Hellwig char *page) 1434c66ac9dbSNicholas Bellinger { 14352eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14362eafd729SChristoph Hellwig 1437a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1438c66ac9dbSNicholas Bellinger return 0; 1439c66ac9dbSNicholas Bellinger 1440c66ac9dbSNicholas Bellinger return sprintf(page, "APTPL Bit Status: %s\n", 14410fd97ccfSChristoph Hellwig (dev->t10_pr.pr_aptpl_active) ? "Activated" : "Disabled"); 1442c66ac9dbSNicholas Bellinger } 1443c66ac9dbSNicholas Bellinger 14442eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_metadata_show(struct config_item *item, 14452eafd729SChristoph Hellwig char *page) 1446c66ac9dbSNicholas Bellinger { 14472eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14482eafd729SChristoph Hellwig 1449a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1450c66ac9dbSNicholas Bellinger return 0; 1451c66ac9dbSNicholas Bellinger 1452c66ac9dbSNicholas Bellinger return sprintf(page, "Ready to process PR APTPL metadata..\n"); 1453c66ac9dbSNicholas Bellinger } 1454c66ac9dbSNicholas Bellinger 1455c66ac9dbSNicholas Bellinger enum { 1456c66ac9dbSNicholas Bellinger Opt_initiator_fabric, Opt_initiator_node, Opt_initiator_sid, 1457c66ac9dbSNicholas Bellinger Opt_sa_res_key, Opt_res_holder, Opt_res_type, Opt_res_scope, 1458c66ac9dbSNicholas Bellinger Opt_res_all_tg_pt, Opt_mapped_lun, Opt_target_fabric, 1459c66ac9dbSNicholas Bellinger Opt_target_node, Opt_tpgt, Opt_port_rtpi, Opt_target_lun, Opt_err 1460c66ac9dbSNicholas Bellinger }; 1461c66ac9dbSNicholas Bellinger 1462c66ac9dbSNicholas Bellinger static match_table_t tokens = { 1463c66ac9dbSNicholas Bellinger {Opt_initiator_fabric, "initiator_fabric=%s"}, 1464c66ac9dbSNicholas Bellinger {Opt_initiator_node, "initiator_node=%s"}, 1465c66ac9dbSNicholas Bellinger {Opt_initiator_sid, "initiator_sid=%s"}, 1466c66ac9dbSNicholas Bellinger {Opt_sa_res_key, "sa_res_key=%s"}, 1467c66ac9dbSNicholas Bellinger {Opt_res_holder, "res_holder=%d"}, 1468c66ac9dbSNicholas Bellinger {Opt_res_type, "res_type=%d"}, 1469c66ac9dbSNicholas Bellinger {Opt_res_scope, "res_scope=%d"}, 1470c66ac9dbSNicholas Bellinger {Opt_res_all_tg_pt, "res_all_tg_pt=%d"}, 1471f2d30680SHannes Reinecke {Opt_mapped_lun, "mapped_lun=%lld"}, 1472c66ac9dbSNicholas Bellinger {Opt_target_fabric, "target_fabric=%s"}, 1473c66ac9dbSNicholas Bellinger {Opt_target_node, "target_node=%s"}, 1474c66ac9dbSNicholas Bellinger {Opt_tpgt, "tpgt=%d"}, 1475c66ac9dbSNicholas Bellinger {Opt_port_rtpi, "port_rtpi=%d"}, 1476f2d30680SHannes Reinecke {Opt_target_lun, "target_lun=%lld"}, 1477c66ac9dbSNicholas Bellinger {Opt_err, NULL} 1478c66ac9dbSNicholas Bellinger }; 1479c66ac9dbSNicholas Bellinger 14802eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, 14812eafd729SChristoph Hellwig const char *page, size_t count) 1482c66ac9dbSNicholas Bellinger { 14832eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14846d180253SJesper Juhl unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; 14856d180253SJesper Juhl unsigned char *t_fabric = NULL, *t_port = NULL; 14868d213559SJoern Engel char *orig, *ptr, *opts; 1487c66ac9dbSNicholas Bellinger substring_t args[MAX_OPT_ARGS]; 1488c66ac9dbSNicholas Bellinger unsigned long long tmp_ll; 1489c66ac9dbSNicholas Bellinger u64 sa_res_key = 0; 1490f2d30680SHannes Reinecke u64 mapped_lun = 0, target_lun = 0; 1491c66ac9dbSNicholas Bellinger int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token; 149245fb94c2SBart Van Assche u16 tpgt = 0; 149345fb94c2SBart Van Assche u8 type = 0; 1494c66ac9dbSNicholas Bellinger 1495a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 14969105bfc0SAndy Grover return count; 1497d977f437SChristoph Hellwig if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 14989105bfc0SAndy Grover return count; 1499c66ac9dbSNicholas Bellinger 15000fd97ccfSChristoph Hellwig if (dev->export_count) { 15016708bb27SAndy Grover pr_debug("Unable to process APTPL metadata while" 1502c66ac9dbSNicholas Bellinger " active fabric exports exist\n"); 1503c66ac9dbSNicholas Bellinger return -EINVAL; 1504c66ac9dbSNicholas Bellinger } 1505c66ac9dbSNicholas Bellinger 1506c66ac9dbSNicholas Bellinger opts = kstrdup(page, GFP_KERNEL); 1507c66ac9dbSNicholas Bellinger if (!opts) 1508c66ac9dbSNicholas Bellinger return -ENOMEM; 1509c66ac9dbSNicholas Bellinger 1510c66ac9dbSNicholas Bellinger orig = opts; 151190c161b6SSebastian Andrzej Siewior while ((ptr = strsep(&opts, ",\n")) != NULL) { 1512c66ac9dbSNicholas Bellinger if (!*ptr) 1513c66ac9dbSNicholas Bellinger continue; 1514c66ac9dbSNicholas Bellinger 1515c66ac9dbSNicholas Bellinger token = match_token(ptr, tokens, args); 1516c66ac9dbSNicholas Bellinger switch (token) { 1517c66ac9dbSNicholas Bellinger case Opt_initiator_fabric: 15188d213559SJoern Engel i_fabric = match_strdup(args); 15196d180253SJesper Juhl if (!i_fabric) { 15206d180253SJesper Juhl ret = -ENOMEM; 15216d180253SJesper Juhl goto out; 15226d180253SJesper Juhl } 1523c66ac9dbSNicholas Bellinger break; 1524c66ac9dbSNicholas Bellinger case Opt_initiator_node: 15258d213559SJoern Engel i_port = match_strdup(args); 15266d180253SJesper Juhl if (!i_port) { 15276d180253SJesper Juhl ret = -ENOMEM; 15286d180253SJesper Juhl goto out; 15296d180253SJesper Juhl } 153060d645a4SDan Carpenter if (strlen(i_port) >= PR_APTPL_MAX_IPORT_LEN) { 15316708bb27SAndy Grover pr_err("APTPL metadata initiator_node=" 1532c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_IPORT_LEN: %d\n", 1533c66ac9dbSNicholas Bellinger PR_APTPL_MAX_IPORT_LEN); 1534c66ac9dbSNicholas Bellinger ret = -EINVAL; 1535c66ac9dbSNicholas Bellinger break; 1536c66ac9dbSNicholas Bellinger } 1537c66ac9dbSNicholas Bellinger break; 1538c66ac9dbSNicholas Bellinger case Opt_initiator_sid: 15398d213559SJoern Engel isid = match_strdup(args); 15406d180253SJesper Juhl if (!isid) { 15416d180253SJesper Juhl ret = -ENOMEM; 15426d180253SJesper Juhl goto out; 15436d180253SJesper Juhl } 154460d645a4SDan Carpenter if (strlen(isid) >= PR_REG_ISID_LEN) { 15456708bb27SAndy Grover pr_err("APTPL metadata initiator_isid" 1546c66ac9dbSNicholas Bellinger "= exceeds PR_REG_ISID_LEN: %d\n", 1547c66ac9dbSNicholas Bellinger PR_REG_ISID_LEN); 1548c66ac9dbSNicholas Bellinger ret = -EINVAL; 1549c66ac9dbSNicholas Bellinger break; 1550c66ac9dbSNicholas Bellinger } 1551c66ac9dbSNicholas Bellinger break; 1552c66ac9dbSNicholas Bellinger case Opt_sa_res_key: 15538d213559SJoern Engel ret = kstrtoull(args->from, 0, &tmp_ll); 1554c66ac9dbSNicholas Bellinger if (ret < 0) { 15558d213559SJoern Engel pr_err("kstrtoull() failed for sa_res_key=\n"); 1556c66ac9dbSNicholas Bellinger goto out; 1557c66ac9dbSNicholas Bellinger } 1558c66ac9dbSNicholas Bellinger sa_res_key = (u64)tmp_ll; 1559c66ac9dbSNicholas Bellinger break; 1560c66ac9dbSNicholas Bellinger /* 1561c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Reservation 1562c66ac9dbSNicholas Bellinger */ 1563c66ac9dbSNicholas Bellinger case Opt_res_holder: 1564c2091026SDavid Disseldorp ret = match_int(args, &arg); 1565c2091026SDavid Disseldorp if (ret) 1566c2091026SDavid Disseldorp goto out; 1567c66ac9dbSNicholas Bellinger res_holder = arg; 1568c66ac9dbSNicholas Bellinger break; 1569c66ac9dbSNicholas Bellinger case Opt_res_type: 1570c2091026SDavid Disseldorp ret = match_int(args, &arg); 1571c2091026SDavid Disseldorp if (ret) 1572c2091026SDavid Disseldorp goto out; 1573c66ac9dbSNicholas Bellinger type = (u8)arg; 1574c66ac9dbSNicholas Bellinger break; 1575c66ac9dbSNicholas Bellinger case Opt_res_scope: 1576c2091026SDavid Disseldorp ret = match_int(args, &arg); 1577c2091026SDavid Disseldorp if (ret) 1578c2091026SDavid Disseldorp goto out; 1579c66ac9dbSNicholas Bellinger break; 1580c66ac9dbSNicholas Bellinger case Opt_res_all_tg_pt: 1581c2091026SDavid Disseldorp ret = match_int(args, &arg); 1582c2091026SDavid Disseldorp if (ret) 1583c2091026SDavid Disseldorp goto out; 1584c66ac9dbSNicholas Bellinger all_tg_pt = (int)arg; 1585c66ac9dbSNicholas Bellinger break; 1586c66ac9dbSNicholas Bellinger case Opt_mapped_lun: 1587c2091026SDavid Disseldorp ret = match_int(args, &arg); 1588c2091026SDavid Disseldorp if (ret) 1589c2091026SDavid Disseldorp goto out; 1590f2d30680SHannes Reinecke mapped_lun = (u64)arg; 1591c66ac9dbSNicholas Bellinger break; 1592c66ac9dbSNicholas Bellinger /* 1593c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Target Port 1594c66ac9dbSNicholas Bellinger */ 1595c66ac9dbSNicholas Bellinger case Opt_target_fabric: 15968d213559SJoern Engel t_fabric = match_strdup(args); 15976d180253SJesper Juhl if (!t_fabric) { 15986d180253SJesper Juhl ret = -ENOMEM; 15996d180253SJesper Juhl goto out; 16006d180253SJesper Juhl } 1601c66ac9dbSNicholas Bellinger break; 1602c66ac9dbSNicholas Bellinger case Opt_target_node: 16038d213559SJoern Engel t_port = match_strdup(args); 16046d180253SJesper Juhl if (!t_port) { 16056d180253SJesper Juhl ret = -ENOMEM; 16066d180253SJesper Juhl goto out; 16076d180253SJesper Juhl } 160860d645a4SDan Carpenter if (strlen(t_port) >= PR_APTPL_MAX_TPORT_LEN) { 16096708bb27SAndy Grover pr_err("APTPL metadata target_node=" 1610c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_TPORT_LEN: %d\n", 1611c66ac9dbSNicholas Bellinger PR_APTPL_MAX_TPORT_LEN); 1612c66ac9dbSNicholas Bellinger ret = -EINVAL; 1613c66ac9dbSNicholas Bellinger break; 1614c66ac9dbSNicholas Bellinger } 1615c66ac9dbSNicholas Bellinger break; 1616c66ac9dbSNicholas Bellinger case Opt_tpgt: 1617c2091026SDavid Disseldorp ret = match_int(args, &arg); 1618c2091026SDavid Disseldorp if (ret) 1619c2091026SDavid Disseldorp goto out; 1620c66ac9dbSNicholas Bellinger tpgt = (u16)arg; 1621c66ac9dbSNicholas Bellinger break; 1622c66ac9dbSNicholas Bellinger case Opt_port_rtpi: 1623c2091026SDavid Disseldorp ret = match_int(args, &arg); 1624c2091026SDavid Disseldorp if (ret) 1625c2091026SDavid Disseldorp goto out; 1626c66ac9dbSNicholas Bellinger break; 1627c66ac9dbSNicholas Bellinger case Opt_target_lun: 1628c2091026SDavid Disseldorp ret = match_int(args, &arg); 1629c2091026SDavid Disseldorp if (ret) 1630c2091026SDavid Disseldorp goto out; 1631f2d30680SHannes Reinecke target_lun = (u64)arg; 1632c66ac9dbSNicholas Bellinger break; 1633c66ac9dbSNicholas Bellinger default: 1634c66ac9dbSNicholas Bellinger break; 1635c66ac9dbSNicholas Bellinger } 1636c66ac9dbSNicholas Bellinger } 1637c66ac9dbSNicholas Bellinger 16386708bb27SAndy Grover if (!i_port || !t_port || !sa_res_key) { 16396708bb27SAndy Grover pr_err("Illegal parameters for APTPL registration\n"); 1640c66ac9dbSNicholas Bellinger ret = -EINVAL; 1641c66ac9dbSNicholas Bellinger goto out; 1642c66ac9dbSNicholas Bellinger } 1643c66ac9dbSNicholas Bellinger 1644c66ac9dbSNicholas Bellinger if (res_holder && !(type)) { 16456708bb27SAndy Grover pr_err("Illegal PR type: 0x%02x for reservation" 1646c66ac9dbSNicholas Bellinger " holder\n", type); 1647c66ac9dbSNicholas Bellinger ret = -EINVAL; 1648c66ac9dbSNicholas Bellinger goto out; 1649c66ac9dbSNicholas Bellinger } 1650c66ac9dbSNicholas Bellinger 16510fd97ccfSChristoph Hellwig ret = core_scsi3_alloc_aptpl_registration(&dev->t10_pr, sa_res_key, 1652c66ac9dbSNicholas Bellinger i_port, isid, mapped_lun, t_port, tpgt, target_lun, 1653c66ac9dbSNicholas Bellinger res_holder, all_tg_pt, type); 1654c66ac9dbSNicholas Bellinger out: 16556d180253SJesper Juhl kfree(i_fabric); 16566d180253SJesper Juhl kfree(i_port); 16576d180253SJesper Juhl kfree(isid); 16586d180253SJesper Juhl kfree(t_fabric); 16596d180253SJesper Juhl kfree(t_port); 1660c66ac9dbSNicholas Bellinger kfree(orig); 1661c66ac9dbSNicholas Bellinger return (ret == 0) ? count : ret; 1662c66ac9dbSNicholas Bellinger } 1663c66ac9dbSNicholas Bellinger 1664c66ac9dbSNicholas Bellinger 16652eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_holder); 16662eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_all_tgt_pts); 16672eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_generation); 16682eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_holder_tg_port); 16692eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_registered_i_pts); 16702eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_type); 16712eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_type); 16722eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_aptpl_active); 16732eafd729SChristoph Hellwig CONFIGFS_ATTR(target_pr_, res_aptpl_metadata); 1674c66ac9dbSNicholas Bellinger 1675c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_pr_attrs[] = { 16762eafd729SChristoph Hellwig &target_pr_attr_res_holder, 16772eafd729SChristoph Hellwig &target_pr_attr_res_pr_all_tgt_pts, 16782eafd729SChristoph Hellwig &target_pr_attr_res_pr_generation, 16792eafd729SChristoph Hellwig &target_pr_attr_res_pr_holder_tg_port, 16802eafd729SChristoph Hellwig &target_pr_attr_res_pr_registered_i_pts, 16812eafd729SChristoph Hellwig &target_pr_attr_res_pr_type, 16822eafd729SChristoph Hellwig &target_pr_attr_res_type, 16832eafd729SChristoph Hellwig &target_pr_attr_res_aptpl_active, 16842eafd729SChristoph Hellwig &target_pr_attr_res_aptpl_metadata, 1685c66ac9dbSNicholas Bellinger NULL, 1686c66ac9dbSNicholas Bellinger }; 1687c66ac9dbSNicholas Bellinger 16882eafd729SChristoph Hellwig TB_CIT_SETUP(dev_pr, NULL, NULL, target_core_dev_pr_attrs); 1689c66ac9dbSNicholas Bellinger 169091e2e39bSNicholas Bellinger /* End functions for struct config_item_type tb_dev_pr_cit */ 1691c66ac9dbSNicholas Bellinger 169273112edcSNicholas Bellinger /* Start functions for struct config_item_type tb_dev_cit */ 1693c66ac9dbSNicholas Bellinger 16942eafd729SChristoph Hellwig static inline struct se_device *to_device(struct config_item *item) 1695c66ac9dbSNicholas Bellinger { 16962eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_device, dev_group); 16972eafd729SChristoph Hellwig } 16982eafd729SChristoph Hellwig 16992eafd729SChristoph Hellwig static ssize_t target_dev_info_show(struct config_item *item, char *page) 17002eafd729SChristoph Hellwig { 17012eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1702c66ac9dbSNicholas Bellinger int bl = 0; 1703c66ac9dbSNicholas Bellinger ssize_t read_bytes = 0; 1704c66ac9dbSNicholas Bellinger 17050fd97ccfSChristoph Hellwig transport_dump_dev_state(dev, page, &bl); 1706c66ac9dbSNicholas Bellinger read_bytes += bl; 17070a06d430SChristoph Hellwig read_bytes += dev->transport->show_configfs_dev_params(dev, 17080a06d430SChristoph Hellwig page+read_bytes); 1709c66ac9dbSNicholas Bellinger return read_bytes; 1710c66ac9dbSNicholas Bellinger } 1711c66ac9dbSNicholas Bellinger 17122eafd729SChristoph Hellwig static ssize_t target_dev_control_store(struct config_item *item, 17132eafd729SChristoph Hellwig const char *page, size_t count) 1714c66ac9dbSNicholas Bellinger { 17152eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1716c66ac9dbSNicholas Bellinger 17170a06d430SChristoph Hellwig return dev->transport->set_configfs_dev_params(dev, page, count); 1718c66ac9dbSNicholas Bellinger } 1719c66ac9dbSNicholas Bellinger 17202eafd729SChristoph Hellwig static ssize_t target_dev_alias_show(struct config_item *item, char *page) 1721c66ac9dbSNicholas Bellinger { 17222eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1723c66ac9dbSNicholas Bellinger 17240fd97ccfSChristoph Hellwig if (!(dev->dev_flags & DF_USING_ALIAS)) 1725c66ac9dbSNicholas Bellinger return 0; 1726c66ac9dbSNicholas Bellinger 17270fd97ccfSChristoph Hellwig return snprintf(page, PAGE_SIZE, "%s\n", dev->dev_alias); 1728c66ac9dbSNicholas Bellinger } 1729c66ac9dbSNicholas Bellinger 17302eafd729SChristoph Hellwig static ssize_t target_dev_alias_store(struct config_item *item, 17312eafd729SChristoph Hellwig const char *page, size_t count) 1732c66ac9dbSNicholas Bellinger { 17332eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 17340fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1735c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1736c66ac9dbSNicholas Bellinger 1737c66ac9dbSNicholas Bellinger if (count > (SE_DEV_ALIAS_LEN-1)) { 17386708bb27SAndy Grover pr_err("alias count: %d exceeds" 1739c66ac9dbSNicholas Bellinger " SE_DEV_ALIAS_LEN-1: %u\n", (int)count, 1740c66ac9dbSNicholas Bellinger SE_DEV_ALIAS_LEN-1); 1741c66ac9dbSNicholas Bellinger return -EINVAL; 1742c66ac9dbSNicholas Bellinger } 1743c66ac9dbSNicholas Bellinger 17440fd97ccfSChristoph Hellwig read_bytes = snprintf(&dev->dev_alias[0], SE_DEV_ALIAS_LEN, "%s", page); 17453011684cSDan Carpenter if (!read_bytes) 17463011684cSDan Carpenter return -EINVAL; 17470fd97ccfSChristoph Hellwig if (dev->dev_alias[read_bytes - 1] == '\n') 17480fd97ccfSChristoph Hellwig dev->dev_alias[read_bytes - 1] = '\0'; 17490877eafdSSebastian Andrzej Siewior 17500fd97ccfSChristoph Hellwig dev->dev_flags |= DF_USING_ALIAS; 17513011684cSDan Carpenter 17526708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s/%s set alias: %s\n", 1753c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 17540fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 17550fd97ccfSChristoph Hellwig dev->dev_alias); 1756c66ac9dbSNicholas Bellinger 1757c66ac9dbSNicholas Bellinger return read_bytes; 1758c66ac9dbSNicholas Bellinger } 1759c66ac9dbSNicholas Bellinger 17602eafd729SChristoph Hellwig static ssize_t target_dev_udev_path_show(struct config_item *item, char *page) 1761c66ac9dbSNicholas Bellinger { 17622eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1763c66ac9dbSNicholas Bellinger 17640fd97ccfSChristoph Hellwig if (!(dev->dev_flags & DF_USING_UDEV_PATH)) 1765c66ac9dbSNicholas Bellinger return 0; 1766c66ac9dbSNicholas Bellinger 17670fd97ccfSChristoph Hellwig return snprintf(page, PAGE_SIZE, "%s\n", dev->udev_path); 1768c66ac9dbSNicholas Bellinger } 1769c66ac9dbSNicholas Bellinger 17702eafd729SChristoph Hellwig static ssize_t target_dev_udev_path_store(struct config_item *item, 17712eafd729SChristoph Hellwig const char *page, size_t count) 1772c66ac9dbSNicholas Bellinger { 17732eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 17740fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1775c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1776c66ac9dbSNicholas Bellinger 1777c66ac9dbSNicholas Bellinger if (count > (SE_UDEV_PATH_LEN-1)) { 17786708bb27SAndy Grover pr_err("udev_path count: %d exceeds" 1779c66ac9dbSNicholas Bellinger " SE_UDEV_PATH_LEN-1: %u\n", (int)count, 1780c66ac9dbSNicholas Bellinger SE_UDEV_PATH_LEN-1); 1781c66ac9dbSNicholas Bellinger return -EINVAL; 1782c66ac9dbSNicholas Bellinger } 1783c66ac9dbSNicholas Bellinger 17840fd97ccfSChristoph Hellwig read_bytes = snprintf(&dev->udev_path[0], SE_UDEV_PATH_LEN, 1785c66ac9dbSNicholas Bellinger "%s", page); 17863011684cSDan Carpenter if (!read_bytes) 17873011684cSDan Carpenter return -EINVAL; 17880fd97ccfSChristoph Hellwig if (dev->udev_path[read_bytes - 1] == '\n') 17890fd97ccfSChristoph Hellwig dev->udev_path[read_bytes - 1] = '\0'; 17900877eafdSSebastian Andrzej Siewior 17910fd97ccfSChristoph Hellwig dev->dev_flags |= DF_USING_UDEV_PATH; 17923011684cSDan Carpenter 17936708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s/%s set udev_path: %s\n", 1794c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 17950fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 17960fd97ccfSChristoph Hellwig dev->udev_path); 1797c66ac9dbSNicholas Bellinger 1798c66ac9dbSNicholas Bellinger return read_bytes; 1799c66ac9dbSNicholas Bellinger } 1800c66ac9dbSNicholas Bellinger 18012eafd729SChristoph Hellwig static ssize_t target_dev_enable_show(struct config_item *item, char *page) 180264146db7SAndy Grover { 18032eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 180464146db7SAndy Grover 180564146db7SAndy Grover return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED)); 180664146db7SAndy Grover } 180764146db7SAndy Grover 18082eafd729SChristoph Hellwig static ssize_t target_dev_enable_store(struct config_item *item, 18092eafd729SChristoph Hellwig const char *page, size_t count) 1810c66ac9dbSNicholas Bellinger { 18112eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1812c66ac9dbSNicholas Bellinger char *ptr; 18130fd97ccfSChristoph Hellwig int ret; 1814c66ac9dbSNicholas Bellinger 1815c66ac9dbSNicholas Bellinger ptr = strstr(page, "1"); 18166708bb27SAndy Grover if (!ptr) { 18176708bb27SAndy Grover pr_err("For dev_enable ops, only valid value" 1818c66ac9dbSNicholas Bellinger " is \"1\"\n"); 1819c66ac9dbSNicholas Bellinger return -EINVAL; 1820c66ac9dbSNicholas Bellinger } 1821c66ac9dbSNicholas Bellinger 18220fd97ccfSChristoph Hellwig ret = target_configure_device(dev); 18230fd97ccfSChristoph Hellwig if (ret) 18240fd97ccfSChristoph Hellwig return ret; 1825c66ac9dbSNicholas Bellinger return count; 1826c66ac9dbSNicholas Bellinger } 1827c66ac9dbSNicholas Bellinger 18282eafd729SChristoph Hellwig static ssize_t target_dev_alua_lu_gp_show(struct config_item *item, char *page) 1829c66ac9dbSNicholas Bellinger { 18302eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1831c66ac9dbSNicholas Bellinger struct config_item *lu_ci; 1832c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 1833c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 1834c66ac9dbSNicholas Bellinger ssize_t len = 0; 1835c66ac9dbSNicholas Bellinger 1836c66ac9dbSNicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 1837c87fbd56SChristoph Hellwig if (!lu_gp_mem) 1838c87fbd56SChristoph Hellwig return 0; 1839c66ac9dbSNicholas Bellinger 1840c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 1841c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 18426708bb27SAndy Grover if (lu_gp) { 1843c66ac9dbSNicholas Bellinger lu_ci = &lu_gp->lu_gp_group.cg_item; 1844c66ac9dbSNicholas Bellinger len += sprintf(page, "LU Group Alias: %s\nLU Group ID: %hu\n", 1845c66ac9dbSNicholas Bellinger config_item_name(lu_ci), lu_gp->lu_gp_id); 1846c66ac9dbSNicholas Bellinger } 1847c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1848c66ac9dbSNicholas Bellinger 1849c66ac9dbSNicholas Bellinger return len; 1850c66ac9dbSNicholas Bellinger } 1851c66ac9dbSNicholas Bellinger 18522eafd729SChristoph Hellwig static ssize_t target_dev_alua_lu_gp_store(struct config_item *item, 18532eafd729SChristoph Hellwig const char *page, size_t count) 1854c66ac9dbSNicholas Bellinger { 18552eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 18560fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1857c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = NULL, *lu_gp_new = NULL; 1858c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 1859c66ac9dbSNicholas Bellinger unsigned char buf[LU_GROUP_NAME_BUF]; 1860c66ac9dbSNicholas Bellinger int move = 0; 1861c66ac9dbSNicholas Bellinger 1862c87fbd56SChristoph Hellwig lu_gp_mem = dev->dev_alua_lu_gp_mem; 1863c87fbd56SChristoph Hellwig if (!lu_gp_mem) 18649105bfc0SAndy Grover return count; 1865c87fbd56SChristoph Hellwig 1866c66ac9dbSNicholas Bellinger if (count > LU_GROUP_NAME_BUF) { 18676708bb27SAndy Grover pr_err("ALUA LU Group Alias too large!\n"); 1868c66ac9dbSNicholas Bellinger return -EINVAL; 1869c66ac9dbSNicholas Bellinger } 1870c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 1871c66ac9dbSNicholas Bellinger memcpy(buf, page, count); 1872c66ac9dbSNicholas Bellinger /* 1873c66ac9dbSNicholas Bellinger * Any ALUA logical unit alias besides "NULL" means we will be 1874c66ac9dbSNicholas Bellinger * making a new group association. 1875c66ac9dbSNicholas Bellinger */ 1876c66ac9dbSNicholas Bellinger if (strcmp(strstrip(buf), "NULL")) { 1877c66ac9dbSNicholas Bellinger /* 1878c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name() will increment reference to 1879c66ac9dbSNicholas Bellinger * struct t10_alua_lu_gp. This reference is released with 1880c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name below(). 1881c66ac9dbSNicholas Bellinger */ 1882c66ac9dbSNicholas Bellinger lu_gp_new = core_alua_get_lu_gp_by_name(strstrip(buf)); 18836708bb27SAndy Grover if (!lu_gp_new) 1884c66ac9dbSNicholas Bellinger return -ENODEV; 1885c66ac9dbSNicholas Bellinger } 1886c66ac9dbSNicholas Bellinger 1887c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 1888c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 18896708bb27SAndy Grover if (lu_gp) { 1890c66ac9dbSNicholas Bellinger /* 1891c66ac9dbSNicholas Bellinger * Clearing an existing lu_gp association, and replacing 1892c66ac9dbSNicholas Bellinger * with NULL 1893c66ac9dbSNicholas Bellinger */ 18946708bb27SAndy Grover if (!lu_gp_new) { 18956708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing %s/%s" 1896c66ac9dbSNicholas Bellinger " from ALUA LU Group: core/alua/lu_gps/%s, ID:" 1897c66ac9dbSNicholas Bellinger " %hu\n", 1898c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 18990fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 1900c66ac9dbSNicholas Bellinger config_item_name(&lu_gp->lu_gp_group.cg_item), 1901c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 1902c66ac9dbSNicholas Bellinger 1903c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 1904c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1905c66ac9dbSNicholas Bellinger 1906c66ac9dbSNicholas Bellinger return count; 1907c66ac9dbSNicholas Bellinger } 1908c66ac9dbSNicholas Bellinger /* 1909c66ac9dbSNicholas Bellinger * Removing existing association of lu_gp_mem with lu_gp 1910c66ac9dbSNicholas Bellinger */ 1911c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 1912c66ac9dbSNicholas Bellinger move = 1; 1913c66ac9dbSNicholas Bellinger } 1914c66ac9dbSNicholas Bellinger /* 1915c66ac9dbSNicholas Bellinger * Associate lu_gp_mem with lu_gp_new. 1916c66ac9dbSNicholas Bellinger */ 1917c66ac9dbSNicholas Bellinger __core_alua_attach_lu_gp_mem(lu_gp_mem, lu_gp_new); 1918c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1919c66ac9dbSNicholas Bellinger 19206708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s %s/%s to ALUA LU Group:" 1921c66ac9dbSNicholas Bellinger " core/alua/lu_gps/%s, ID: %hu\n", 1922c66ac9dbSNicholas Bellinger (move) ? "Moving" : "Adding", 1923c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 19240fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 1925c66ac9dbSNicholas Bellinger config_item_name(&lu_gp_new->lu_gp_group.cg_item), 1926c66ac9dbSNicholas Bellinger lu_gp_new->lu_gp_id); 1927c66ac9dbSNicholas Bellinger 1928c66ac9dbSNicholas Bellinger core_alua_put_lu_gp_from_name(lu_gp_new); 1929c66ac9dbSNicholas Bellinger return count; 1930c66ac9dbSNicholas Bellinger } 1931c66ac9dbSNicholas Bellinger 19322eafd729SChristoph Hellwig static ssize_t target_dev_lba_map_show(struct config_item *item, char *page) 1933229d4f11SHannes Reinecke { 19342eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1935229d4f11SHannes Reinecke struct t10_alua_lba_map *map; 1936229d4f11SHannes Reinecke struct t10_alua_lba_map_member *mem; 1937229d4f11SHannes Reinecke char *b = page; 1938229d4f11SHannes Reinecke int bl = 0; 1939229d4f11SHannes Reinecke char state; 1940229d4f11SHannes Reinecke 1941229d4f11SHannes Reinecke spin_lock(&dev->t10_alua.lba_map_lock); 1942229d4f11SHannes Reinecke if (!list_empty(&dev->t10_alua.lba_map_list)) 1943229d4f11SHannes Reinecke bl += sprintf(b + bl, "%u %u\n", 1944229d4f11SHannes Reinecke dev->t10_alua.lba_map_segment_size, 1945229d4f11SHannes Reinecke dev->t10_alua.lba_map_segment_multiplier); 1946229d4f11SHannes Reinecke list_for_each_entry(map, &dev->t10_alua.lba_map_list, lba_map_list) { 1947229d4f11SHannes Reinecke bl += sprintf(b + bl, "%llu %llu", 1948229d4f11SHannes Reinecke map->lba_map_first_lba, map->lba_map_last_lba); 1949229d4f11SHannes Reinecke list_for_each_entry(mem, &map->lba_map_mem_list, 1950229d4f11SHannes Reinecke lba_map_mem_list) { 1951229d4f11SHannes Reinecke switch (mem->lba_map_mem_alua_state) { 1952229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED: 1953229d4f11SHannes Reinecke state = 'O'; 1954229d4f11SHannes Reinecke break; 1955229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED: 1956229d4f11SHannes Reinecke state = 'A'; 1957229d4f11SHannes Reinecke break; 1958229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_STANDBY: 1959229d4f11SHannes Reinecke state = 'S'; 1960229d4f11SHannes Reinecke break; 1961229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_UNAVAILABLE: 1962229d4f11SHannes Reinecke state = 'U'; 1963229d4f11SHannes Reinecke break; 1964229d4f11SHannes Reinecke default: 1965229d4f11SHannes Reinecke state = '.'; 1966229d4f11SHannes Reinecke break; 1967229d4f11SHannes Reinecke } 1968229d4f11SHannes Reinecke bl += sprintf(b + bl, " %d:%c", 1969229d4f11SHannes Reinecke mem->lba_map_mem_alua_pg_id, state); 1970229d4f11SHannes Reinecke } 1971229d4f11SHannes Reinecke bl += sprintf(b + bl, "\n"); 1972229d4f11SHannes Reinecke } 1973229d4f11SHannes Reinecke spin_unlock(&dev->t10_alua.lba_map_lock); 1974229d4f11SHannes Reinecke return bl; 1975229d4f11SHannes Reinecke } 1976229d4f11SHannes Reinecke 19772eafd729SChristoph Hellwig static ssize_t target_dev_lba_map_store(struct config_item *item, 19782eafd729SChristoph Hellwig const char *page, size_t count) 1979229d4f11SHannes Reinecke { 19802eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1981229d4f11SHannes Reinecke struct t10_alua_lba_map *lba_map = NULL; 1982229d4f11SHannes Reinecke struct list_head lba_list; 1983229d4f11SHannes Reinecke char *map_entries, *ptr; 1984229d4f11SHannes Reinecke char state; 1985229d4f11SHannes Reinecke int pg_num = -1, pg; 1986229d4f11SHannes Reinecke int ret = 0, num = 0, pg_id, alua_state; 1987229d4f11SHannes Reinecke unsigned long start_lba = -1, end_lba = -1; 1988229d4f11SHannes Reinecke unsigned long segment_size = -1, segment_mult = -1; 1989229d4f11SHannes Reinecke 1990229d4f11SHannes Reinecke map_entries = kstrdup(page, GFP_KERNEL); 1991229d4f11SHannes Reinecke if (!map_entries) 1992229d4f11SHannes Reinecke return -ENOMEM; 1993229d4f11SHannes Reinecke 1994229d4f11SHannes Reinecke INIT_LIST_HEAD(&lba_list); 1995229d4f11SHannes Reinecke while ((ptr = strsep(&map_entries, "\n")) != NULL) { 1996229d4f11SHannes Reinecke if (!*ptr) 1997229d4f11SHannes Reinecke continue; 1998229d4f11SHannes Reinecke 1999229d4f11SHannes Reinecke if (num == 0) { 2000229d4f11SHannes Reinecke if (sscanf(ptr, "%lu %lu\n", 2001229d4f11SHannes Reinecke &segment_size, &segment_mult) != 2) { 2002229d4f11SHannes Reinecke pr_err("Invalid line %d\n", num); 2003229d4f11SHannes Reinecke ret = -EINVAL; 2004229d4f11SHannes Reinecke break; 2005229d4f11SHannes Reinecke } 2006229d4f11SHannes Reinecke num++; 2007229d4f11SHannes Reinecke continue; 2008229d4f11SHannes Reinecke } 2009229d4f11SHannes Reinecke if (sscanf(ptr, "%lu %lu", &start_lba, &end_lba) != 2) { 2010229d4f11SHannes Reinecke pr_err("Invalid line %d\n", num); 2011229d4f11SHannes Reinecke ret = -EINVAL; 2012229d4f11SHannes Reinecke break; 2013229d4f11SHannes Reinecke } 2014229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2015229d4f11SHannes Reinecke if (!ptr) { 2016229d4f11SHannes Reinecke pr_err("Invalid line %d, missing end lba\n", num); 2017229d4f11SHannes Reinecke ret = -EINVAL; 2018229d4f11SHannes Reinecke break; 2019229d4f11SHannes Reinecke } 2020229d4f11SHannes Reinecke ptr++; 2021229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2022229d4f11SHannes Reinecke if (!ptr) { 2023229d4f11SHannes Reinecke pr_err("Invalid line %d, missing state definitions\n", 2024229d4f11SHannes Reinecke num); 2025229d4f11SHannes Reinecke ret = -EINVAL; 2026229d4f11SHannes Reinecke break; 2027229d4f11SHannes Reinecke } 2028229d4f11SHannes Reinecke ptr++; 2029229d4f11SHannes Reinecke lba_map = core_alua_allocate_lba_map(&lba_list, 2030229d4f11SHannes Reinecke start_lba, end_lba); 2031229d4f11SHannes Reinecke if (IS_ERR(lba_map)) { 2032229d4f11SHannes Reinecke ret = PTR_ERR(lba_map); 2033229d4f11SHannes Reinecke break; 2034229d4f11SHannes Reinecke } 2035229d4f11SHannes Reinecke pg = 0; 2036229d4f11SHannes Reinecke while (sscanf(ptr, "%d:%c", &pg_id, &state) == 2) { 2037229d4f11SHannes Reinecke switch (state) { 2038229d4f11SHannes Reinecke case 'O': 2039229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED; 2040229d4f11SHannes Reinecke break; 2041229d4f11SHannes Reinecke case 'A': 2042229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED; 2043229d4f11SHannes Reinecke break; 2044229d4f11SHannes Reinecke case 'S': 2045229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_STANDBY; 2046229d4f11SHannes Reinecke break; 2047229d4f11SHannes Reinecke case 'U': 2048229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_UNAVAILABLE; 2049229d4f11SHannes Reinecke break; 2050229d4f11SHannes Reinecke default: 2051229d4f11SHannes Reinecke pr_err("Invalid ALUA state '%c'\n", state); 2052229d4f11SHannes Reinecke ret = -EINVAL; 2053229d4f11SHannes Reinecke goto out; 2054229d4f11SHannes Reinecke } 2055229d4f11SHannes Reinecke 2056229d4f11SHannes Reinecke ret = core_alua_allocate_lba_map_mem(lba_map, 2057229d4f11SHannes Reinecke pg_id, alua_state); 2058229d4f11SHannes Reinecke if (ret) { 2059229d4f11SHannes Reinecke pr_err("Invalid target descriptor %d:%c " 2060229d4f11SHannes Reinecke "at line %d\n", 2061229d4f11SHannes Reinecke pg_id, state, num); 2062229d4f11SHannes Reinecke break; 2063229d4f11SHannes Reinecke } 2064229d4f11SHannes Reinecke pg++; 2065229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2066229d4f11SHannes Reinecke if (ptr) 2067229d4f11SHannes Reinecke ptr++; 2068229d4f11SHannes Reinecke else 2069229d4f11SHannes Reinecke break; 2070229d4f11SHannes Reinecke } 2071229d4f11SHannes Reinecke if (pg_num == -1) 2072229d4f11SHannes Reinecke pg_num = pg; 2073229d4f11SHannes Reinecke else if (pg != pg_num) { 2074229d4f11SHannes Reinecke pr_err("Only %d from %d port groups definitions " 2075229d4f11SHannes Reinecke "at line %d\n", pg, pg_num, num); 2076229d4f11SHannes Reinecke ret = -EINVAL; 2077229d4f11SHannes Reinecke break; 2078229d4f11SHannes Reinecke } 2079229d4f11SHannes Reinecke num++; 2080229d4f11SHannes Reinecke } 2081229d4f11SHannes Reinecke out: 2082229d4f11SHannes Reinecke if (ret) { 2083229d4f11SHannes Reinecke core_alua_free_lba_map(&lba_list); 2084229d4f11SHannes Reinecke count = ret; 2085229d4f11SHannes Reinecke } else 2086229d4f11SHannes Reinecke core_alua_set_lba_map(dev, &lba_list, 2087229d4f11SHannes Reinecke segment_size, segment_mult); 2088229d4f11SHannes Reinecke kfree(map_entries); 2089229d4f11SHannes Reinecke return count; 2090229d4f11SHannes Reinecke } 2091229d4f11SHannes Reinecke 20922eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_dev_, info); 20932eafd729SChristoph Hellwig CONFIGFS_ATTR_WO(target_dev_, control); 20942eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, alias); 20952eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, udev_path); 20962eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, enable); 20972eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, alua_lu_gp); 20982eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, lba_map); 2099229d4f11SHannes Reinecke 210073112edcSNicholas Bellinger static struct configfs_attribute *target_core_dev_attrs[] = { 21012eafd729SChristoph Hellwig &target_dev_attr_info, 21022eafd729SChristoph Hellwig &target_dev_attr_control, 21032eafd729SChristoph Hellwig &target_dev_attr_alias, 21042eafd729SChristoph Hellwig &target_dev_attr_udev_path, 21052eafd729SChristoph Hellwig &target_dev_attr_enable, 21062eafd729SChristoph Hellwig &target_dev_attr_alua_lu_gp, 21072eafd729SChristoph Hellwig &target_dev_attr_lba_map, 2108c66ac9dbSNicholas Bellinger NULL, 2109c66ac9dbSNicholas Bellinger }; 2110c66ac9dbSNicholas Bellinger 2111c66ac9dbSNicholas Bellinger static void target_core_dev_release(struct config_item *item) 2112c66ac9dbSNicholas Bellinger { 21130fd97ccfSChristoph Hellwig struct config_group *dev_cg = to_config_group(item); 21140fd97ccfSChristoph Hellwig struct se_device *dev = 21150fd97ccfSChristoph Hellwig container_of(dev_cg, struct se_device, dev_group); 2116c66ac9dbSNicholas Bellinger 2117c66ac9dbSNicholas Bellinger kfree(dev_cg->default_groups); 21180fd97ccfSChristoph Hellwig target_free_device(dev); 2119c66ac9dbSNicholas Bellinger } 2120c66ac9dbSNicholas Bellinger 2121c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_dev_item_ops = { 2122c66ac9dbSNicholas Bellinger .release = target_core_dev_release, 2123c66ac9dbSNicholas Bellinger }; 2124c66ac9dbSNicholas Bellinger 212573112edcSNicholas Bellinger TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs); 2126c66ac9dbSNicholas Bellinger 212773112edcSNicholas Bellinger /* End functions for struct config_item_type tb_dev_cit */ 2128c66ac9dbSNicholas Bellinger 2129c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gp_cit */ 2130c66ac9dbSNicholas Bellinger 21312eafd729SChristoph Hellwig static inline struct t10_alua_lu_gp *to_lu_gp(struct config_item *item) 2132c66ac9dbSNicholas Bellinger { 21332eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_alua_lu_gp, 21342eafd729SChristoph Hellwig lu_gp_group); 21352eafd729SChristoph Hellwig } 21362eafd729SChristoph Hellwig 21372eafd729SChristoph Hellwig static ssize_t target_lu_gp_lu_gp_id_show(struct config_item *item, char *page) 21382eafd729SChristoph Hellwig { 21392eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 21402eafd729SChristoph Hellwig 21416708bb27SAndy Grover if (!lu_gp->lu_gp_valid_id) 2142c66ac9dbSNicholas Bellinger return 0; 2143c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", lu_gp->lu_gp_id); 2144c66ac9dbSNicholas Bellinger } 2145c66ac9dbSNicholas Bellinger 21462eafd729SChristoph Hellwig static ssize_t target_lu_gp_lu_gp_id_store(struct config_item *item, 21472eafd729SChristoph Hellwig const char *page, size_t count) 2148c66ac9dbSNicholas Bellinger { 21492eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 2150c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = &lu_gp->lu_gp_group; 2151c66ac9dbSNicholas Bellinger unsigned long lu_gp_id; 2152c66ac9dbSNicholas Bellinger int ret; 2153c66ac9dbSNicholas Bellinger 215457103d7fSJingoo Han ret = kstrtoul(page, 0, &lu_gp_id); 2155c66ac9dbSNicholas Bellinger if (ret < 0) { 215657103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 2157c66ac9dbSNicholas Bellinger " lu_gp_id\n", ret); 215857103d7fSJingoo Han return ret; 2159c66ac9dbSNicholas Bellinger } 2160c66ac9dbSNicholas Bellinger if (lu_gp_id > 0x0000ffff) { 21616708bb27SAndy Grover pr_err("ALUA lu_gp_id: %lu exceeds maximum:" 2162c66ac9dbSNicholas Bellinger " 0x0000ffff\n", lu_gp_id); 2163c66ac9dbSNicholas Bellinger return -EINVAL; 2164c66ac9dbSNicholas Bellinger } 2165c66ac9dbSNicholas Bellinger 2166c66ac9dbSNicholas Bellinger ret = core_alua_set_lu_gp_id(lu_gp, (u16)lu_gp_id); 2167c66ac9dbSNicholas Bellinger if (ret < 0) 2168c66ac9dbSNicholas Bellinger return -EINVAL; 2169c66ac9dbSNicholas Bellinger 21706708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set ALUA Logical Unit" 2171c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s to ID: %hu\n", 2172c66ac9dbSNicholas Bellinger config_item_name(&alua_lu_gp_cg->cg_item), 2173c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 2174c66ac9dbSNicholas Bellinger 2175c66ac9dbSNicholas Bellinger return count; 2176c66ac9dbSNicholas Bellinger } 2177c66ac9dbSNicholas Bellinger 21782eafd729SChristoph Hellwig static ssize_t target_lu_gp_members_show(struct config_item *item, char *page) 2179c66ac9dbSNicholas Bellinger { 21802eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 2181c66ac9dbSNicholas Bellinger struct se_device *dev; 2182c66ac9dbSNicholas Bellinger struct se_hba *hba; 2183c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 2184c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2185c66ac9dbSNicholas Bellinger unsigned char buf[LU_GROUP_NAME_BUF]; 2186c66ac9dbSNicholas Bellinger 2187c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 2188c66ac9dbSNicholas Bellinger 2189c66ac9dbSNicholas Bellinger spin_lock(&lu_gp->lu_gp_lock); 2190c66ac9dbSNicholas Bellinger list_for_each_entry(lu_gp_mem, &lu_gp->lu_gp_mem_list, lu_gp_mem_list) { 2191c66ac9dbSNicholas Bellinger dev = lu_gp_mem->lu_gp_mem_dev; 21920fd97ccfSChristoph Hellwig hba = dev->se_hba; 2193c66ac9dbSNicholas Bellinger 2194c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, LU_GROUP_NAME_BUF, "%s/%s\n", 2195c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 21960fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item)); 2197c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2198c66ac9dbSNicholas Bellinger 2199c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 22006708bb27SAndy Grover pr_warn("Ran out of lu_gp_show_attr" 2201c66ac9dbSNicholas Bellinger "_members buffer\n"); 2202c66ac9dbSNicholas Bellinger break; 2203c66ac9dbSNicholas Bellinger } 2204c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2205c66ac9dbSNicholas Bellinger len += cur_len; 2206c66ac9dbSNicholas Bellinger } 2207c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp->lu_gp_lock); 2208c66ac9dbSNicholas Bellinger 2209c66ac9dbSNicholas Bellinger return len; 2210c66ac9dbSNicholas Bellinger } 2211c66ac9dbSNicholas Bellinger 22122eafd729SChristoph Hellwig CONFIGFS_ATTR(target_lu_gp_, lu_gp_id); 22132eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_lu_gp_, members); 2214c66ac9dbSNicholas Bellinger 2215c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_lu_gp_attrs[] = { 22162eafd729SChristoph Hellwig &target_lu_gp_attr_lu_gp_id, 22172eafd729SChristoph Hellwig &target_lu_gp_attr_members, 2218c66ac9dbSNicholas Bellinger NULL, 2219c66ac9dbSNicholas Bellinger }; 2220c66ac9dbSNicholas Bellinger 22211f6fe7cbSNicholas Bellinger static void target_core_alua_lu_gp_release(struct config_item *item) 22221f6fe7cbSNicholas Bellinger { 22231f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 22241f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 22251f6fe7cbSNicholas Bellinger 22261f6fe7cbSNicholas Bellinger core_alua_free_lu_gp(lu_gp); 22271f6fe7cbSNicholas Bellinger } 22281f6fe7cbSNicholas Bellinger 2229c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_lu_gp_ops = { 22301f6fe7cbSNicholas Bellinger .release = target_core_alua_lu_gp_release, 2231c66ac9dbSNicholas Bellinger }; 2232c66ac9dbSNicholas Bellinger 2233c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gp_cit = { 2234c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_lu_gp_ops, 2235c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_lu_gp_attrs, 2236c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2237c66ac9dbSNicholas Bellinger }; 2238c66ac9dbSNicholas Bellinger 2239c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gp_cit */ 2240c66ac9dbSNicholas Bellinger 2241c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gps_cit */ 2242c66ac9dbSNicholas Bellinger 2243c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_lu_gp( 2244c66ac9dbSNicholas Bellinger struct config_group *group, 2245c66ac9dbSNicholas Bellinger const char *name) 2246c66ac9dbSNicholas Bellinger { 2247c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 2248c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = NULL; 2249c66ac9dbSNicholas Bellinger struct config_item *alua_lu_gp_ci = NULL; 2250c66ac9dbSNicholas Bellinger 2251c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp(name, 0); 2252c66ac9dbSNicholas Bellinger if (IS_ERR(lu_gp)) 2253c66ac9dbSNicholas Bellinger return NULL; 2254c66ac9dbSNicholas Bellinger 2255c66ac9dbSNicholas Bellinger alua_lu_gp_cg = &lu_gp->lu_gp_group; 2256c66ac9dbSNicholas Bellinger alua_lu_gp_ci = &alua_lu_gp_cg->cg_item; 2257c66ac9dbSNicholas Bellinger 2258c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_lu_gp_cg, name, 2259c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 2260c66ac9dbSNicholas Bellinger 22616708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Allocated ALUA Logical Unit" 2262c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s\n", 2263c66ac9dbSNicholas Bellinger config_item_name(alua_lu_gp_ci)); 2264c66ac9dbSNicholas Bellinger 2265c66ac9dbSNicholas Bellinger return alua_lu_gp_cg; 2266c66ac9dbSNicholas Bellinger 2267c66ac9dbSNicholas Bellinger } 2268c66ac9dbSNicholas Bellinger 2269c66ac9dbSNicholas Bellinger static void target_core_alua_drop_lu_gp( 2270c66ac9dbSNicholas Bellinger struct config_group *group, 2271c66ac9dbSNicholas Bellinger struct config_item *item) 2272c66ac9dbSNicholas Bellinger { 2273c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 2274c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 2275c66ac9dbSNicholas Bellinger 22766708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing ALUA Logical Unit" 2277c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s, ID: %hu\n", 2278c66ac9dbSNicholas Bellinger config_item_name(item), lu_gp->lu_gp_id); 22791f6fe7cbSNicholas Bellinger /* 22801f6fe7cbSNicholas Bellinger * core_alua_free_lu_gp() is called from target_core_alua_lu_gp_ops->release() 22811f6fe7cbSNicholas Bellinger * -> target_core_alua_lu_gp_release() 22821f6fe7cbSNicholas Bellinger */ 2283c66ac9dbSNicholas Bellinger config_item_put(item); 2284c66ac9dbSNicholas Bellinger } 2285c66ac9dbSNicholas Bellinger 2286c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_lu_gps_group_ops = { 2287c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_lu_gp, 2288c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_lu_gp, 2289c66ac9dbSNicholas Bellinger }; 2290c66ac9dbSNicholas Bellinger 2291c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gps_cit = { 2292c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2293c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_alua_lu_gps_group_ops, 2294c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2295c66ac9dbSNicholas Bellinger }; 2296c66ac9dbSNicholas Bellinger 2297c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gps_cit */ 2298c66ac9dbSNicholas Bellinger 2299c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2300c66ac9dbSNicholas Bellinger 23012eafd729SChristoph Hellwig static inline struct t10_alua_tg_pt_gp *to_tg_pt_gp(struct config_item *item) 23022eafd729SChristoph Hellwig { 23032eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_alua_tg_pt_gp, 23042eafd729SChristoph Hellwig tg_pt_gp_group); 23052eafd729SChristoph Hellwig } 2306c66ac9dbSNicholas Bellinger 23072eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item, 2308c66ac9dbSNicholas Bellinger char *page) 2309c66ac9dbSNicholas Bellinger { 2310c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", 23112eafd729SChristoph Hellwig atomic_read(&to_tg_pt_gp(item)->tg_pt_gp_alua_access_state)); 2312c66ac9dbSNicholas Bellinger } 2313c66ac9dbSNicholas Bellinger 23142eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item, 23152eafd729SChristoph Hellwig const char *page, size_t count) 2316c66ac9dbSNicholas Bellinger { 23172eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 23180fd97ccfSChristoph Hellwig struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; 2319c66ac9dbSNicholas Bellinger unsigned long tmp; 2320c66ac9dbSNicholas Bellinger int new_state, ret; 2321c66ac9dbSNicholas Bellinger 23226708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) { 2323125d0119SHannes Reinecke pr_err("Unable to do implicit ALUA on non valid" 2324c66ac9dbSNicholas Bellinger " tg_pt_gp ID: %hu\n", tg_pt_gp->tg_pt_gp_valid_id); 2325c66ac9dbSNicholas Bellinger return -EINVAL; 2326c66ac9dbSNicholas Bellinger } 2327f1453773SNicholas Bellinger if (!(dev->dev_flags & DF_CONFIGURED)) { 2328f1453773SNicholas Bellinger pr_err("Unable to set alua_access_state while device is" 2329f1453773SNicholas Bellinger " not configured\n"); 2330f1453773SNicholas Bellinger return -ENODEV; 2331f1453773SNicholas Bellinger } 2332c66ac9dbSNicholas Bellinger 233357103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2334c66ac9dbSNicholas Bellinger if (ret < 0) { 23356708bb27SAndy Grover pr_err("Unable to extract new ALUA access state from" 2336c66ac9dbSNicholas Bellinger " %s\n", page); 233757103d7fSJingoo Han return ret; 2338c66ac9dbSNicholas Bellinger } 2339c66ac9dbSNicholas Bellinger new_state = (int)tmp; 2340c66ac9dbSNicholas Bellinger 2341125d0119SHannes Reinecke if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)) { 2342125d0119SHannes Reinecke pr_err("Unable to process implicit configfs ALUA" 2343125d0119SHannes Reinecke " transition while TPGS_IMPLICIT_ALUA is disabled\n"); 2344c66ac9dbSNicholas Bellinger return -EINVAL; 2345c66ac9dbSNicholas Bellinger } 2346c66094bfSHannes Reinecke if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA && 2347c66094bfSHannes Reinecke new_state == ALUA_ACCESS_STATE_LBA_DEPENDENT) { 2348c66094bfSHannes Reinecke /* LBA DEPENDENT is only allowed with implicit ALUA */ 2349c66094bfSHannes Reinecke pr_err("Unable to process implicit configfs ALUA transition" 2350c66094bfSHannes Reinecke " while explicit ALUA management is enabled\n"); 2351c66094bfSHannes Reinecke return -EINVAL; 2352c66094bfSHannes Reinecke } 2353c66ac9dbSNicholas Bellinger 23540fd97ccfSChristoph Hellwig ret = core_alua_do_port_transition(tg_pt_gp, dev, 2355c66ac9dbSNicholas Bellinger NULL, NULL, new_state, 0); 2356c66ac9dbSNicholas Bellinger return (!ret) ? count : -EINVAL; 2357c66ac9dbSNicholas Bellinger } 2358c66ac9dbSNicholas Bellinger 23592eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_status_show(struct config_item *item, 2360c66ac9dbSNicholas Bellinger char *page) 2361c66ac9dbSNicholas Bellinger { 23622eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2363c66ac9dbSNicholas Bellinger return sprintf(page, "%s\n", 2364c66ac9dbSNicholas Bellinger core_alua_dump_status(tg_pt_gp->tg_pt_gp_alua_access_status)); 2365c66ac9dbSNicholas Bellinger } 2366c66ac9dbSNicholas Bellinger 23672eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_status_store( 23682eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 2369c66ac9dbSNicholas Bellinger { 23702eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2371c66ac9dbSNicholas Bellinger unsigned long tmp; 2372c66ac9dbSNicholas Bellinger int new_status, ret; 2373c66ac9dbSNicholas Bellinger 23746708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) { 23756708bb27SAndy Grover pr_err("Unable to do set ALUA access status on non" 2376c66ac9dbSNicholas Bellinger " valid tg_pt_gp ID: %hu\n", 2377c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_valid_id); 2378c66ac9dbSNicholas Bellinger return -EINVAL; 2379c66ac9dbSNicholas Bellinger } 2380c66ac9dbSNicholas Bellinger 238157103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2382c66ac9dbSNicholas Bellinger if (ret < 0) { 23836708bb27SAndy Grover pr_err("Unable to extract new ALUA access status" 2384c66ac9dbSNicholas Bellinger " from %s\n", page); 238557103d7fSJingoo Han return ret; 2386c66ac9dbSNicholas Bellinger } 2387c66ac9dbSNicholas Bellinger new_status = (int)tmp; 2388c66ac9dbSNicholas Bellinger 2389c66ac9dbSNicholas Bellinger if ((new_status != ALUA_STATUS_NONE) && 2390125d0119SHannes Reinecke (new_status != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) && 2391125d0119SHannes Reinecke (new_status != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) { 23926708bb27SAndy Grover pr_err("Illegal ALUA access status: 0x%02x\n", 2393c66ac9dbSNicholas Bellinger new_status); 2394c66ac9dbSNicholas Bellinger return -EINVAL; 2395c66ac9dbSNicholas Bellinger } 2396c66ac9dbSNicholas Bellinger 2397c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_alua_access_status = new_status; 2398c66ac9dbSNicholas Bellinger return count; 2399c66ac9dbSNicholas Bellinger } 2400c66ac9dbSNicholas Bellinger 24012eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_type_show(struct config_item *item, 2402c66ac9dbSNicholas Bellinger char *page) 2403c66ac9dbSNicholas Bellinger { 24042eafd729SChristoph Hellwig return core_alua_show_access_type(to_tg_pt_gp(item), page); 2405c66ac9dbSNicholas Bellinger } 2406c66ac9dbSNicholas Bellinger 24072eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_type_store(struct config_item *item, 24082eafd729SChristoph Hellwig const char *page, size_t count) 2409c66ac9dbSNicholas Bellinger { 24102eafd729SChristoph Hellwig return core_alua_store_access_type(to_tg_pt_gp(item), page, count); 2411c66ac9dbSNicholas Bellinger } 2412c66ac9dbSNicholas Bellinger 24132eafd729SChristoph Hellwig #define ALUA_SUPPORTED_STATE_ATTR(_name, _bit) \ 24142eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_support_##_name##_show( \ 24152eafd729SChristoph Hellwig struct config_item *item, char *p) \ 2416b0a382c5SHannes Reinecke { \ 24172eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ 24182eafd729SChristoph Hellwig return sprintf(p, "%d\n", \ 24192eafd729SChristoph Hellwig !!(t->tg_pt_gp_alua_supported_states & _bit)); \ 24202eafd729SChristoph Hellwig } \ 24212eafd729SChristoph Hellwig \ 24222eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_support_##_name##_store( \ 24232eafd729SChristoph Hellwig struct config_item *item, const char *p, size_t c) \ 2424b0a382c5SHannes Reinecke { \ 24252eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ 2426b0a382c5SHannes Reinecke unsigned long tmp; \ 2427b0a382c5SHannes Reinecke int ret; \ 2428b0a382c5SHannes Reinecke \ 2429b0a382c5SHannes Reinecke if (!t->tg_pt_gp_valid_id) { \ 2430b0a382c5SHannes Reinecke pr_err("Unable to do set ##_name ALUA state on non" \ 2431b0a382c5SHannes Reinecke " valid tg_pt_gp ID: %hu\n", \ 2432b0a382c5SHannes Reinecke t->tg_pt_gp_valid_id); \ 2433b0a382c5SHannes Reinecke return -EINVAL; \ 2434b0a382c5SHannes Reinecke } \ 2435b0a382c5SHannes Reinecke \ 2436b0a382c5SHannes Reinecke ret = kstrtoul(p, 0, &tmp); \ 2437b0a382c5SHannes Reinecke if (ret < 0) { \ 2438b0a382c5SHannes Reinecke pr_err("Invalid value '%s', must be '0' or '1'\n", p); \ 2439b0a382c5SHannes Reinecke return -EINVAL; \ 2440b0a382c5SHannes Reinecke } \ 2441b0a382c5SHannes Reinecke if (tmp > 1) { \ 2442b0a382c5SHannes Reinecke pr_err("Invalid value '%ld', must be '0' or '1'\n", tmp); \ 2443b0a382c5SHannes Reinecke return -EINVAL; \ 2444b0a382c5SHannes Reinecke } \ 24451f0b030cSSebastian Herbszt if (tmp) \ 24462eafd729SChristoph Hellwig t->tg_pt_gp_alua_supported_states |= _bit; \ 2447b0a382c5SHannes Reinecke else \ 24482eafd729SChristoph Hellwig t->tg_pt_gp_alua_supported_states &= ~_bit; \ 2449b0a382c5SHannes Reinecke \ 2450b0a382c5SHannes Reinecke return c; \ 24516be526c4SHannes Reinecke } 24526be526c4SHannes Reinecke 24532eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(transitioning, ALUA_T_SUP); 24542eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(offline, ALUA_O_SUP); 24552eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(lba_dependent, ALUA_LBD_SUP); 24562eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(unavailable, ALUA_U_SUP); 24572eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(standby, ALUA_S_SUP); 24582eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(active_optimized, ALUA_AO_SUP); 24592eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(active_nonoptimized, ALUA_AN_SUP); 24606be526c4SHannes Reinecke 24612eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_write_metadata_show( 24622eafd729SChristoph Hellwig struct config_item *item, char *page) 2463c66ac9dbSNicholas Bellinger { 24642eafd729SChristoph Hellwig return sprintf(page, "%d\n", 24652eafd729SChristoph Hellwig to_tg_pt_gp(item)->tg_pt_gp_write_metadata); 2466c66ac9dbSNicholas Bellinger } 2467c66ac9dbSNicholas Bellinger 24682eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_write_metadata_store( 24692eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 2470c66ac9dbSNicholas Bellinger { 24712eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2472c66ac9dbSNicholas Bellinger unsigned long tmp; 2473c66ac9dbSNicholas Bellinger int ret; 2474c66ac9dbSNicholas Bellinger 247557103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2476c66ac9dbSNicholas Bellinger if (ret < 0) { 24776708bb27SAndy Grover pr_err("Unable to extract alua_write_metadata\n"); 247857103d7fSJingoo Han return ret; 2479c66ac9dbSNicholas Bellinger } 2480c66ac9dbSNicholas Bellinger 2481c66ac9dbSNicholas Bellinger if ((tmp != 0) && (tmp != 1)) { 24826708bb27SAndy Grover pr_err("Illegal value for alua_write_metadata:" 2483c66ac9dbSNicholas Bellinger " %lu\n", tmp); 2484c66ac9dbSNicholas Bellinger return -EINVAL; 2485c66ac9dbSNicholas Bellinger } 2486c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_write_metadata = (int)tmp; 2487c66ac9dbSNicholas Bellinger 2488c66ac9dbSNicholas Bellinger return count; 2489c66ac9dbSNicholas Bellinger } 2490c66ac9dbSNicholas Bellinger 24912eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_nonop_delay_msecs_show(struct config_item *item, 2492c66ac9dbSNicholas Bellinger char *page) 2493c66ac9dbSNicholas Bellinger { 24942eafd729SChristoph Hellwig return core_alua_show_nonop_delay_msecs(to_tg_pt_gp(item), page); 2495c66ac9dbSNicholas Bellinger } 2496c66ac9dbSNicholas Bellinger 24972eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_nonop_delay_msecs_store(struct config_item *item, 24982eafd729SChristoph Hellwig const char *page, size_t count) 2499c66ac9dbSNicholas Bellinger { 25002eafd729SChristoph Hellwig return core_alua_store_nonop_delay_msecs(to_tg_pt_gp(item), page, 25012eafd729SChristoph Hellwig count); 2502c66ac9dbSNicholas Bellinger } 2503c66ac9dbSNicholas Bellinger 25042eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_trans_delay_msecs_show(struct config_item *item, 2505c66ac9dbSNicholas Bellinger char *page) 2506c66ac9dbSNicholas Bellinger { 25072eafd729SChristoph Hellwig return core_alua_show_trans_delay_msecs(to_tg_pt_gp(item), page); 2508c66ac9dbSNicholas Bellinger } 2509c66ac9dbSNicholas Bellinger 25102eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_trans_delay_msecs_store(struct config_item *item, 25112eafd729SChristoph Hellwig const char *page, size_t count) 2512c66ac9dbSNicholas Bellinger { 25132eafd729SChristoph Hellwig return core_alua_store_trans_delay_msecs(to_tg_pt_gp(item), page, 25142eafd729SChristoph Hellwig count); 2515c66ac9dbSNicholas Bellinger } 2516c66ac9dbSNicholas Bellinger 25172eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_implicit_trans_secs_show( 25182eafd729SChristoph Hellwig struct config_item *item, char *page) 25192eafd729SChristoph Hellwig { 25202eafd729SChristoph Hellwig return core_alua_show_implicit_trans_secs(to_tg_pt_gp(item), page); 25212eafd729SChristoph Hellwig } 2522c66ac9dbSNicholas Bellinger 25232eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_implicit_trans_secs_store( 25242eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 25252eafd729SChristoph Hellwig { 25262eafd729SChristoph Hellwig return core_alua_store_implicit_trans_secs(to_tg_pt_gp(item), page, 25272eafd729SChristoph Hellwig count); 25282eafd729SChristoph Hellwig } 25292eafd729SChristoph Hellwig 25302eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_preferred_show(struct config_item *item, 25315b9a4d72SNicholas Bellinger char *page) 25325b9a4d72SNicholas Bellinger { 25332eafd729SChristoph Hellwig return core_alua_show_preferred_bit(to_tg_pt_gp(item), page); 25345b9a4d72SNicholas Bellinger } 25355b9a4d72SNicholas Bellinger 25362eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_preferred_store(struct config_item *item, 25372eafd729SChristoph Hellwig const char *page, size_t count) 25385b9a4d72SNicholas Bellinger { 25392eafd729SChristoph Hellwig return core_alua_store_preferred_bit(to_tg_pt_gp(item), page, count); 25405b9a4d72SNicholas Bellinger } 25415b9a4d72SNicholas Bellinger 25422eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_tg_pt_gp_id_show(struct config_item *item, 2543c66ac9dbSNicholas Bellinger char *page) 2544c66ac9dbSNicholas Bellinger { 25452eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2546c66ac9dbSNicholas Bellinger 25476708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) 2548c66ac9dbSNicholas Bellinger return 0; 2549c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", tg_pt_gp->tg_pt_gp_id); 2550c66ac9dbSNicholas Bellinger } 2551c66ac9dbSNicholas Bellinger 25522eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_tg_pt_gp_id_store(struct config_item *item, 25532eafd729SChristoph Hellwig const char *page, size_t count) 2554c66ac9dbSNicholas Bellinger { 25552eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2556c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2557c66ac9dbSNicholas Bellinger unsigned long tg_pt_gp_id; 2558c66ac9dbSNicholas Bellinger int ret; 2559c66ac9dbSNicholas Bellinger 256057103d7fSJingoo Han ret = kstrtoul(page, 0, &tg_pt_gp_id); 2561c66ac9dbSNicholas Bellinger if (ret < 0) { 256257103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 2563c66ac9dbSNicholas Bellinger " tg_pt_gp_id\n", ret); 256457103d7fSJingoo Han return ret; 2565c66ac9dbSNicholas Bellinger } 2566c66ac9dbSNicholas Bellinger if (tg_pt_gp_id > 0x0000ffff) { 25676708bb27SAndy Grover pr_err("ALUA tg_pt_gp_id: %lu exceeds maximum:" 2568c66ac9dbSNicholas Bellinger " 0x0000ffff\n", tg_pt_gp_id); 2569c66ac9dbSNicholas Bellinger return -EINVAL; 2570c66ac9dbSNicholas Bellinger } 2571c66ac9dbSNicholas Bellinger 2572c66ac9dbSNicholas Bellinger ret = core_alua_set_tg_pt_gp_id(tg_pt_gp, (u16)tg_pt_gp_id); 2573c66ac9dbSNicholas Bellinger if (ret < 0) 2574c66ac9dbSNicholas Bellinger return -EINVAL; 2575c66ac9dbSNicholas Bellinger 25766708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set ALUA Target Port Group: " 2577c66ac9dbSNicholas Bellinger "core/alua/tg_pt_gps/%s to ID: %hu\n", 2578c66ac9dbSNicholas Bellinger config_item_name(&alua_tg_pt_gp_cg->cg_item), 2579c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_id); 2580c66ac9dbSNicholas Bellinger 2581c66ac9dbSNicholas Bellinger return count; 2582c66ac9dbSNicholas Bellinger } 2583c66ac9dbSNicholas Bellinger 25842eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_members_show(struct config_item *item, 2585c66ac9dbSNicholas Bellinger char *page) 2586c66ac9dbSNicholas Bellinger { 25872eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2588c66ac9dbSNicholas Bellinger struct se_lun *lun; 2589c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2590c66ac9dbSNicholas Bellinger unsigned char buf[TG_PT_GROUP_NAME_BUF]; 2591c66ac9dbSNicholas Bellinger 2592c66ac9dbSNicholas Bellinger memset(buf, 0, TG_PT_GROUP_NAME_BUF); 2593c66ac9dbSNicholas Bellinger 2594c66ac9dbSNicholas Bellinger spin_lock(&tg_pt_gp->tg_pt_gp_lock); 2595adf653f9SChristoph Hellwig list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list, 2596adf653f9SChristoph Hellwig lun_tg_pt_gp_link) { 2597adf653f9SChristoph Hellwig struct se_portal_group *tpg = lun->lun_tpg; 2598c66ac9dbSNicholas Bellinger 2599c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu" 2600e3d6f909SAndy Grover "/%s\n", tpg->se_tpg_tfo->get_fabric_name(), 2601e3d6f909SAndy Grover tpg->se_tpg_tfo->tpg_get_wwn(tpg), 2602e3d6f909SAndy Grover tpg->se_tpg_tfo->tpg_get_tag(tpg), 2603c66ac9dbSNicholas Bellinger config_item_name(&lun->lun_group.cg_item)); 2604c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2605c66ac9dbSNicholas Bellinger 2606c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 26076708bb27SAndy Grover pr_warn("Ran out of lu_gp_show_attr" 2608c66ac9dbSNicholas Bellinger "_members buffer\n"); 2609c66ac9dbSNicholas Bellinger break; 2610c66ac9dbSNicholas Bellinger } 2611c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2612c66ac9dbSNicholas Bellinger len += cur_len; 2613c66ac9dbSNicholas Bellinger } 2614c66ac9dbSNicholas Bellinger spin_unlock(&tg_pt_gp->tg_pt_gp_lock); 2615c66ac9dbSNicholas Bellinger 2616c66ac9dbSNicholas Bellinger return len; 2617c66ac9dbSNicholas Bellinger } 2618c66ac9dbSNicholas Bellinger 26192eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_state); 26202eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_status); 26212eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_type); 26222eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_transitioning); 26232eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_offline); 26242eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_lba_dependent); 26252eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_unavailable); 26262eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_standby); 26272eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_optimized); 26282eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_nonoptimized); 26292eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_write_metadata); 26302eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, nonop_delay_msecs); 26312eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, trans_delay_msecs); 26322eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, implicit_trans_secs); 26332eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, preferred); 26342eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, tg_pt_gp_id); 26352eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_tg_pt_gp_, members); 2636c66ac9dbSNicholas Bellinger 2637c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = { 26382eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_state, 26392eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_status, 26402eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_type, 26412eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_transitioning, 26422eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_offline, 26432eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_lba_dependent, 26442eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_unavailable, 26452eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_standby, 26462eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_active_nonoptimized, 26472eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_active_optimized, 26482eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_write_metadata, 26492eafd729SChristoph Hellwig &target_tg_pt_gp_attr_nonop_delay_msecs, 26502eafd729SChristoph Hellwig &target_tg_pt_gp_attr_trans_delay_msecs, 26512eafd729SChristoph Hellwig &target_tg_pt_gp_attr_implicit_trans_secs, 26522eafd729SChristoph Hellwig &target_tg_pt_gp_attr_preferred, 26532eafd729SChristoph Hellwig &target_tg_pt_gp_attr_tg_pt_gp_id, 26542eafd729SChristoph Hellwig &target_tg_pt_gp_attr_members, 2655c66ac9dbSNicholas Bellinger NULL, 2656c66ac9dbSNicholas Bellinger }; 2657c66ac9dbSNicholas Bellinger 26581f6fe7cbSNicholas Bellinger static void target_core_alua_tg_pt_gp_release(struct config_item *item) 26591f6fe7cbSNicholas Bellinger { 26601f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 26611f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 26621f6fe7cbSNicholas Bellinger 26631f6fe7cbSNicholas Bellinger core_alua_free_tg_pt_gp(tg_pt_gp); 26641f6fe7cbSNicholas Bellinger } 26651f6fe7cbSNicholas Bellinger 2666c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = { 26671f6fe7cbSNicholas Bellinger .release = target_core_alua_tg_pt_gp_release, 2668c66ac9dbSNicholas Bellinger }; 2669c66ac9dbSNicholas Bellinger 2670c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_tg_pt_gp_cit = { 2671c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_tg_pt_gp_ops, 2672c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_tg_pt_gp_attrs, 2673c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2674c66ac9dbSNicholas Bellinger }; 2675c66ac9dbSNicholas Bellinger 2676c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2677c66ac9dbSNicholas Bellinger 267872aca57bSNicholas Bellinger /* Start functions for struct config_item_type tb_alua_tg_pt_gps_cit */ 2679c66ac9dbSNicholas Bellinger 2680c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_tg_pt_gp( 2681c66ac9dbSNicholas Bellinger struct config_group *group, 2682c66ac9dbSNicholas Bellinger const char *name) 2683c66ac9dbSNicholas Bellinger { 2684c66ac9dbSNicholas Bellinger struct t10_alua *alua = container_of(group, struct t10_alua, 2685c66ac9dbSNicholas Bellinger alua_tg_pt_gps_group); 2686c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2687c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = NULL; 2688c66ac9dbSNicholas Bellinger struct config_item *alua_tg_pt_gp_ci = NULL; 2689c66ac9dbSNicholas Bellinger 26900fd97ccfSChristoph Hellwig tg_pt_gp = core_alua_allocate_tg_pt_gp(alua->t10_dev, name, 0); 26916708bb27SAndy Grover if (!tg_pt_gp) 2692c66ac9dbSNicholas Bellinger return NULL; 2693c66ac9dbSNicholas Bellinger 2694c66ac9dbSNicholas Bellinger alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2695c66ac9dbSNicholas Bellinger alua_tg_pt_gp_ci = &alua_tg_pt_gp_cg->cg_item; 2696c66ac9dbSNicholas Bellinger 2697c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_tg_pt_gp_cg, name, 2698c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_cit); 2699c66ac9dbSNicholas Bellinger 27006708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Allocated ALUA Target Port" 2701c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s\n", 2702c66ac9dbSNicholas Bellinger config_item_name(alua_tg_pt_gp_ci)); 2703c66ac9dbSNicholas Bellinger 2704c66ac9dbSNicholas Bellinger return alua_tg_pt_gp_cg; 2705c66ac9dbSNicholas Bellinger } 2706c66ac9dbSNicholas Bellinger 2707c66ac9dbSNicholas Bellinger static void target_core_alua_drop_tg_pt_gp( 2708c66ac9dbSNicholas Bellinger struct config_group *group, 2709c66ac9dbSNicholas Bellinger struct config_item *item) 2710c66ac9dbSNicholas Bellinger { 2711c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 2712c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 2713c66ac9dbSNicholas Bellinger 27146708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing ALUA Target Port" 2715c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s, ID: %hu\n", 2716c66ac9dbSNicholas Bellinger config_item_name(item), tg_pt_gp->tg_pt_gp_id); 27171f6fe7cbSNicholas Bellinger /* 27181f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from target_core_alua_tg_pt_gp_ops->release() 27191f6fe7cbSNicholas Bellinger * -> target_core_alua_tg_pt_gp_release(). 27201f6fe7cbSNicholas Bellinger */ 2721c66ac9dbSNicholas Bellinger config_item_put(item); 2722c66ac9dbSNicholas Bellinger } 2723c66ac9dbSNicholas Bellinger 2724c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_tg_pt_gps_group_ops = { 2725c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_tg_pt_gp, 2726c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_tg_pt_gp, 2727c66ac9dbSNicholas Bellinger }; 2728c66ac9dbSNicholas Bellinger 272972aca57bSNicholas Bellinger TB_CIT_SETUP(dev_alua_tg_pt_gps, NULL, &target_core_alua_tg_pt_gps_group_ops, NULL); 2730c66ac9dbSNicholas Bellinger 273172aca57bSNicholas Bellinger /* End functions for struct config_item_type tb_alua_tg_pt_gps_cit */ 2732c66ac9dbSNicholas Bellinger 2733c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_cit */ 2734c66ac9dbSNicholas Bellinger 2735c66ac9dbSNicholas Bellinger /* 2736c66ac9dbSNicholas Bellinger * target_core_alua_cit is a ConfigFS group that lives under 2737c66ac9dbSNicholas Bellinger * /sys/kernel/config/target/core/alua. There are default groups 2738c66ac9dbSNicholas Bellinger * core/alua/lu_gps and core/alua/tg_pt_gps that are attached to 2739c66ac9dbSNicholas Bellinger * target_core_alua_cit in target_core_init_configfs() below. 2740c66ac9dbSNicholas Bellinger */ 2741c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_cit = { 2742c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2743c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 2744c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2745c66ac9dbSNicholas Bellinger }; 2746c66ac9dbSNicholas Bellinger 2747c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_cit */ 2748c66ac9dbSNicholas Bellinger 2749d23ab570SNicholas Bellinger /* Start functions for struct config_item_type tb_dev_stat_cit */ 275012d23384SNicholas Bellinger 275112d23384SNicholas Bellinger static struct config_group *target_core_stat_mkdir( 275212d23384SNicholas Bellinger struct config_group *group, 275312d23384SNicholas Bellinger const char *name) 275412d23384SNicholas Bellinger { 275512d23384SNicholas Bellinger return ERR_PTR(-ENOSYS); 275612d23384SNicholas Bellinger } 275712d23384SNicholas Bellinger 275812d23384SNicholas Bellinger static void target_core_stat_rmdir( 275912d23384SNicholas Bellinger struct config_group *group, 276012d23384SNicholas Bellinger struct config_item *item) 276112d23384SNicholas Bellinger { 276212d23384SNicholas Bellinger return; 276312d23384SNicholas Bellinger } 276412d23384SNicholas Bellinger 276512d23384SNicholas Bellinger static struct configfs_group_operations target_core_stat_group_ops = { 276612d23384SNicholas Bellinger .make_group = &target_core_stat_mkdir, 276712d23384SNicholas Bellinger .drop_item = &target_core_stat_rmdir, 276812d23384SNicholas Bellinger }; 276912d23384SNicholas Bellinger 2770d23ab570SNicholas Bellinger TB_CIT_SETUP(dev_stat, NULL, &target_core_stat_group_ops, NULL); 277112d23384SNicholas Bellinger 2772d23ab570SNicholas Bellinger /* End functions for struct config_item_type tb_dev_stat_cit */ 277312d23384SNicholas Bellinger 2774c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_hba_cit */ 2775c66ac9dbSNicholas Bellinger 2776c66ac9dbSNicholas Bellinger static struct config_group *target_core_make_subdev( 2777c66ac9dbSNicholas Bellinger struct config_group *group, 2778c66ac9dbSNicholas Bellinger const char *name) 2779c66ac9dbSNicholas Bellinger { 2780c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2781c66ac9dbSNicholas Bellinger struct config_item *hba_ci = &group->cg_item; 2782c66ac9dbSNicholas Bellinger struct se_hba *hba = item_to_hba(hba_ci); 27830a06d430SChristoph Hellwig struct target_backend *tb = hba->backend; 27840fd97ccfSChristoph Hellwig struct se_device *dev; 2785c66ac9dbSNicholas Bellinger struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL; 278612d23384SNicholas Bellinger struct config_group *dev_stat_grp = NULL; 278712d23384SNicholas Bellinger int errno = -ENOMEM, ret; 2788c66ac9dbSNicholas Bellinger 278912d23384SNicholas Bellinger ret = mutex_lock_interruptible(&hba->hba_access_mutex); 279012d23384SNicholas Bellinger if (ret) 279112d23384SNicholas Bellinger return ERR_PTR(ret); 2792c66ac9dbSNicholas Bellinger 27930fd97ccfSChristoph Hellwig dev = target_alloc_device(hba, name); 27940fd97ccfSChristoph Hellwig if (!dev) 27950fd97ccfSChristoph Hellwig goto out_unlock; 2796c66ac9dbSNicholas Bellinger 27970fd97ccfSChristoph Hellwig dev_cg = &dev->dev_group; 2798c66ac9dbSNicholas Bellinger 279913f6a914SSebastian Andrzej Siewior dev_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6, 2800c66ac9dbSNicholas Bellinger GFP_KERNEL); 28016708bb27SAndy Grover if (!dev_cg->default_groups) 28020fd97ccfSChristoph Hellwig goto out_free_device; 2803c66ac9dbSNicholas Bellinger 28040a06d430SChristoph Hellwig config_group_init_type_name(dev_cg, name, &tb->tb_dev_cit); 28050fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_attrib.da_group, "attrib", 28060a06d430SChristoph Hellwig &tb->tb_dev_attrib_cit); 28070fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_pr_group, "pr", 28080a06d430SChristoph Hellwig &tb->tb_dev_pr_cit); 28090fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->t10_wwn.t10_wwn_group, "wwn", 28100a06d430SChristoph Hellwig &tb->tb_dev_wwn_cit); 28110fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->t10_alua.alua_tg_pt_gps_group, 28120a06d430SChristoph Hellwig "alua", &tb->tb_dev_alua_tg_pt_gps_cit); 28130fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_stat_grps.stat_group, 28140a06d430SChristoph Hellwig "statistics", &tb->tb_dev_stat_cit); 281512d23384SNicholas Bellinger 28160fd97ccfSChristoph Hellwig dev_cg->default_groups[0] = &dev->dev_attrib.da_group; 28170fd97ccfSChristoph Hellwig dev_cg->default_groups[1] = &dev->dev_pr_group; 28180fd97ccfSChristoph Hellwig dev_cg->default_groups[2] = &dev->t10_wwn.t10_wwn_group; 28190fd97ccfSChristoph Hellwig dev_cg->default_groups[3] = &dev->t10_alua.alua_tg_pt_gps_group; 28200fd97ccfSChristoph Hellwig dev_cg->default_groups[4] = &dev->dev_stat_grps.stat_group; 282112d23384SNicholas Bellinger dev_cg->default_groups[5] = NULL; 2822c66ac9dbSNicholas Bellinger /* 282312d23384SNicholas Bellinger * Add core/$HBA/$DEV/alua/default_tg_pt_gp 2824c66ac9dbSNicholas Bellinger */ 28250fd97ccfSChristoph Hellwig tg_pt_gp = core_alua_allocate_tg_pt_gp(dev, "default_tg_pt_gp", 1); 28266708bb27SAndy Grover if (!tg_pt_gp) 28270fd97ccfSChristoph Hellwig goto out_free_dev_cg_default_groups; 28280fd97ccfSChristoph Hellwig dev->t10_alua.default_tg_pt_gp = tg_pt_gp; 2829c66ac9dbSNicholas Bellinger 28300fd97ccfSChristoph Hellwig tg_pt_gp_cg = &dev->t10_alua.alua_tg_pt_gps_group; 283113f6a914SSebastian Andrzej Siewior tg_pt_gp_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 2832c66ac9dbSNicholas Bellinger GFP_KERNEL); 28336708bb27SAndy Grover if (!tg_pt_gp_cg->default_groups) { 28346708bb27SAndy Grover pr_err("Unable to allocate tg_pt_gp_cg->" 2835c66ac9dbSNicholas Bellinger "default_groups\n"); 28360fd97ccfSChristoph Hellwig goto out_free_tg_pt_gp; 2837c66ac9dbSNicholas Bellinger } 2838c66ac9dbSNicholas Bellinger 2839c66ac9dbSNicholas Bellinger config_group_init_type_name(&tg_pt_gp->tg_pt_gp_group, 2840c66ac9dbSNicholas Bellinger "default_tg_pt_gp", &target_core_alua_tg_pt_gp_cit); 2841c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[0] = &tg_pt_gp->tg_pt_gp_group; 2842c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[1] = NULL; 284312d23384SNicholas Bellinger /* 284412d23384SNicholas Bellinger * Add core/$HBA/$DEV/statistics/ default groups 284512d23384SNicholas Bellinger */ 28460fd97ccfSChristoph Hellwig dev_stat_grp = &dev->dev_stat_grps.stat_group; 284713f6a914SSebastian Andrzej Siewior dev_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 4, 284812d23384SNicholas Bellinger GFP_KERNEL); 284912d23384SNicholas Bellinger if (!dev_stat_grp->default_groups) { 28506708bb27SAndy Grover pr_err("Unable to allocate dev_stat_grp->default_groups\n"); 28510fd97ccfSChristoph Hellwig goto out_free_tg_pt_gp_cg_default_groups; 285212d23384SNicholas Bellinger } 28530fd97ccfSChristoph Hellwig target_stat_setup_dev_default_groups(dev); 2854c66ac9dbSNicholas Bellinger 2855c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 28560fd97ccfSChristoph Hellwig return dev_cg; 28570fd97ccfSChristoph Hellwig 28580fd97ccfSChristoph Hellwig out_free_tg_pt_gp_cg_default_groups: 2859c66ac9dbSNicholas Bellinger kfree(tg_pt_gp_cg->default_groups); 28600fd97ccfSChristoph Hellwig out_free_tg_pt_gp: 28610fd97ccfSChristoph Hellwig core_alua_free_tg_pt_gp(tg_pt_gp); 28620fd97ccfSChristoph Hellwig out_free_dev_cg_default_groups: 2863c66ac9dbSNicholas Bellinger kfree(dev_cg->default_groups); 28640fd97ccfSChristoph Hellwig out_free_device: 28650fd97ccfSChristoph Hellwig target_free_device(dev); 28660fd97ccfSChristoph Hellwig out_unlock: 2867c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 286812d23384SNicholas Bellinger return ERR_PTR(errno); 2869c66ac9dbSNicholas Bellinger } 2870c66ac9dbSNicholas Bellinger 2871c66ac9dbSNicholas Bellinger static void target_core_drop_subdev( 2872c66ac9dbSNicholas Bellinger struct config_group *group, 2873c66ac9dbSNicholas Bellinger struct config_item *item) 2874c66ac9dbSNicholas Bellinger { 28750fd97ccfSChristoph Hellwig struct config_group *dev_cg = to_config_group(item); 28760fd97ccfSChristoph Hellwig struct se_device *dev = 28770fd97ccfSChristoph Hellwig container_of(dev_cg, struct se_device, dev_group); 2878c66ac9dbSNicholas Bellinger struct se_hba *hba; 2879c66ac9dbSNicholas Bellinger struct config_item *df_item; 28800fd97ccfSChristoph Hellwig struct config_group *tg_pt_gp_cg, *dev_stat_grp; 28811f6fe7cbSNicholas Bellinger int i; 2882c66ac9dbSNicholas Bellinger 28830fd97ccfSChristoph Hellwig hba = item_to_hba(&dev->se_hba->hba_group.cg_item); 2884c66ac9dbSNicholas Bellinger 28851f6fe7cbSNicholas Bellinger mutex_lock(&hba->hba_access_mutex); 2886c66ac9dbSNicholas Bellinger 28870fd97ccfSChristoph Hellwig dev_stat_grp = &dev->dev_stat_grps.stat_group; 288812d23384SNicholas Bellinger for (i = 0; dev_stat_grp->default_groups[i]; i++) { 288912d23384SNicholas Bellinger df_item = &dev_stat_grp->default_groups[i]->cg_item; 289012d23384SNicholas Bellinger dev_stat_grp->default_groups[i] = NULL; 289112d23384SNicholas Bellinger config_item_put(df_item); 289212d23384SNicholas Bellinger } 289312d23384SNicholas Bellinger kfree(dev_stat_grp->default_groups); 289412d23384SNicholas Bellinger 28950fd97ccfSChristoph Hellwig tg_pt_gp_cg = &dev->t10_alua.alua_tg_pt_gps_group; 2896c66ac9dbSNicholas Bellinger for (i = 0; tg_pt_gp_cg->default_groups[i]; i++) { 2897c66ac9dbSNicholas Bellinger df_item = &tg_pt_gp_cg->default_groups[i]->cg_item; 2898c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[i] = NULL; 2899c66ac9dbSNicholas Bellinger config_item_put(df_item); 2900c66ac9dbSNicholas Bellinger } 2901c66ac9dbSNicholas Bellinger kfree(tg_pt_gp_cg->default_groups); 29021f6fe7cbSNicholas Bellinger /* 29031f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from ->default_tg_pt_gp 29041f6fe7cbSNicholas Bellinger * directly from target_core_alua_tg_pt_gp_release(). 29051f6fe7cbSNicholas Bellinger */ 29060fd97ccfSChristoph Hellwig dev->t10_alua.default_tg_pt_gp = NULL; 2907c66ac9dbSNicholas Bellinger 2908c66ac9dbSNicholas Bellinger for (i = 0; dev_cg->default_groups[i]; i++) { 2909c66ac9dbSNicholas Bellinger df_item = &dev_cg->default_groups[i]->cg_item; 2910c66ac9dbSNicholas Bellinger dev_cg->default_groups[i] = NULL; 2911c66ac9dbSNicholas Bellinger config_item_put(df_item); 2912c66ac9dbSNicholas Bellinger } 29131f6fe7cbSNicholas Bellinger /* 29140fd97ccfSChristoph Hellwig * se_dev is released from target_core_dev_item_ops->release() 29151f6fe7cbSNicholas Bellinger */ 2916c66ac9dbSNicholas Bellinger config_item_put(item); 2917c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 2918c66ac9dbSNicholas Bellinger } 2919c66ac9dbSNicholas Bellinger 2920c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_hba_group_ops = { 2921c66ac9dbSNicholas Bellinger .make_group = target_core_make_subdev, 2922c66ac9dbSNicholas Bellinger .drop_item = target_core_drop_subdev, 2923c66ac9dbSNicholas Bellinger }; 2924c66ac9dbSNicholas Bellinger 2925c66ac9dbSNicholas Bellinger 29262eafd729SChristoph Hellwig static inline struct se_hba *to_hba(struct config_item *item) 2927c66ac9dbSNicholas Bellinger { 29282eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_hba, hba_group); 29292eafd729SChristoph Hellwig } 29302eafd729SChristoph Hellwig 29312eafd729SChristoph Hellwig static ssize_t target_hba_info_show(struct config_item *item, char *page) 29322eafd729SChristoph Hellwig { 29332eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 29342eafd729SChristoph Hellwig 2935c66ac9dbSNicholas Bellinger return sprintf(page, "HBA Index: %d plugin: %s version: %s\n", 29360a06d430SChristoph Hellwig hba->hba_id, hba->backend->ops->name, 2937ce8dd25dSChristoph Hellwig TARGET_CORE_VERSION); 2938c66ac9dbSNicholas Bellinger } 2939c66ac9dbSNicholas Bellinger 29402eafd729SChristoph Hellwig static ssize_t target_hba_mode_show(struct config_item *item, char *page) 2941c66ac9dbSNicholas Bellinger { 29422eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 2943c66ac9dbSNicholas Bellinger int hba_mode = 0; 2944c66ac9dbSNicholas Bellinger 2945c66ac9dbSNicholas Bellinger if (hba->hba_flags & HBA_FLAGS_PSCSI_MODE) 2946c66ac9dbSNicholas Bellinger hba_mode = 1; 2947c66ac9dbSNicholas Bellinger 2948c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", hba_mode); 2949c66ac9dbSNicholas Bellinger } 2950c66ac9dbSNicholas Bellinger 29512eafd729SChristoph Hellwig static ssize_t target_hba_mode_store(struct config_item *item, 2952c66ac9dbSNicholas Bellinger const char *page, size_t count) 2953c66ac9dbSNicholas Bellinger { 29542eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 2955c66ac9dbSNicholas Bellinger unsigned long mode_flag; 2956c66ac9dbSNicholas Bellinger int ret; 2957c66ac9dbSNicholas Bellinger 29580a06d430SChristoph Hellwig if (hba->backend->ops->pmode_enable_hba == NULL) 2959c66ac9dbSNicholas Bellinger return -EINVAL; 2960c66ac9dbSNicholas Bellinger 296157103d7fSJingoo Han ret = kstrtoul(page, 0, &mode_flag); 2962c66ac9dbSNicholas Bellinger if (ret < 0) { 29636708bb27SAndy Grover pr_err("Unable to extract hba mode flag: %d\n", ret); 296457103d7fSJingoo Han return ret; 2965c66ac9dbSNicholas Bellinger } 2966c66ac9dbSNicholas Bellinger 29670fd97ccfSChristoph Hellwig if (hba->dev_count) { 29686708bb27SAndy Grover pr_err("Unable to set hba_mode with active devices\n"); 2969c66ac9dbSNicholas Bellinger return -EINVAL; 2970c66ac9dbSNicholas Bellinger } 2971c66ac9dbSNicholas Bellinger 29720a06d430SChristoph Hellwig ret = hba->backend->ops->pmode_enable_hba(hba, mode_flag); 2973c66ac9dbSNicholas Bellinger if (ret < 0) 2974c66ac9dbSNicholas Bellinger return -EINVAL; 2975c66ac9dbSNicholas Bellinger if (ret > 0) 2976c66ac9dbSNicholas Bellinger hba->hba_flags |= HBA_FLAGS_PSCSI_MODE; 2977c66ac9dbSNicholas Bellinger else if (ret == 0) 2978c66ac9dbSNicholas Bellinger hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; 2979c66ac9dbSNicholas Bellinger 2980c66ac9dbSNicholas Bellinger return count; 2981c66ac9dbSNicholas Bellinger } 2982c66ac9dbSNicholas Bellinger 29832eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_, hba_info); 29842eafd729SChristoph Hellwig CONFIGFS_ATTR(target_, hba_mode); 2985c66ac9dbSNicholas Bellinger 29861f6fe7cbSNicholas Bellinger static void target_core_hba_release(struct config_item *item) 29871f6fe7cbSNicholas Bellinger { 29881f6fe7cbSNicholas Bellinger struct se_hba *hba = container_of(to_config_group(item), 29891f6fe7cbSNicholas Bellinger struct se_hba, hba_group); 29901f6fe7cbSNicholas Bellinger core_delete_hba(hba); 29911f6fe7cbSNicholas Bellinger } 29921f6fe7cbSNicholas Bellinger 2993c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_hba_attrs[] = { 29942eafd729SChristoph Hellwig &target_attr_hba_info, 29952eafd729SChristoph Hellwig &target_attr_hba_mode, 2996c66ac9dbSNicholas Bellinger NULL, 2997c66ac9dbSNicholas Bellinger }; 2998c66ac9dbSNicholas Bellinger 2999c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_hba_item_ops = { 30001f6fe7cbSNicholas Bellinger .release = target_core_hba_release, 3001c66ac9dbSNicholas Bellinger }; 3002c66ac9dbSNicholas Bellinger 3003c66ac9dbSNicholas Bellinger static struct config_item_type target_core_hba_cit = { 3004c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_hba_item_ops, 3005c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_hba_group_ops, 3006c66ac9dbSNicholas Bellinger .ct_attrs = target_core_hba_attrs, 3007c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 3008c66ac9dbSNicholas Bellinger }; 3009c66ac9dbSNicholas Bellinger 3010c66ac9dbSNicholas Bellinger static struct config_group *target_core_call_addhbatotarget( 3011c66ac9dbSNicholas Bellinger struct config_group *group, 3012c66ac9dbSNicholas Bellinger const char *name) 3013c66ac9dbSNicholas Bellinger { 3014c66ac9dbSNicholas Bellinger char *se_plugin_str, *str, *str2; 3015c66ac9dbSNicholas Bellinger struct se_hba *hba; 3016c66ac9dbSNicholas Bellinger char buf[TARGET_CORE_NAME_MAX_LEN]; 3017c66ac9dbSNicholas Bellinger unsigned long plugin_dep_id = 0; 3018c66ac9dbSNicholas Bellinger int ret; 3019c66ac9dbSNicholas Bellinger 3020c66ac9dbSNicholas Bellinger memset(buf, 0, TARGET_CORE_NAME_MAX_LEN); 302160d645a4SDan Carpenter if (strlen(name) >= TARGET_CORE_NAME_MAX_LEN) { 30226708bb27SAndy Grover pr_err("Passed *name strlen(): %d exceeds" 3023c66ac9dbSNicholas Bellinger " TARGET_CORE_NAME_MAX_LEN: %d\n", (int)strlen(name), 3024c66ac9dbSNicholas Bellinger TARGET_CORE_NAME_MAX_LEN); 3025c66ac9dbSNicholas Bellinger return ERR_PTR(-ENAMETOOLONG); 3026c66ac9dbSNicholas Bellinger } 3027c66ac9dbSNicholas Bellinger snprintf(buf, TARGET_CORE_NAME_MAX_LEN, "%s", name); 3028c66ac9dbSNicholas Bellinger 3029c66ac9dbSNicholas Bellinger str = strstr(buf, "_"); 30306708bb27SAndy Grover if (!str) { 30316708bb27SAndy Grover pr_err("Unable to locate \"_\" for $SUBSYSTEM_PLUGIN_$HOST_ID\n"); 3032c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 3033c66ac9dbSNicholas Bellinger } 3034c66ac9dbSNicholas Bellinger se_plugin_str = buf; 3035c66ac9dbSNicholas Bellinger /* 3036c66ac9dbSNicholas Bellinger * Special case for subsystem plugins that have "_" in their names. 3037c66ac9dbSNicholas Bellinger * Namely rd_direct and rd_mcp.. 3038c66ac9dbSNicholas Bellinger */ 3039c66ac9dbSNicholas Bellinger str2 = strstr(str+1, "_"); 30406708bb27SAndy Grover if (str2) { 3041c66ac9dbSNicholas Bellinger *str2 = '\0'; /* Terminate for *se_plugin_str */ 3042c66ac9dbSNicholas Bellinger str2++; /* Skip to start of plugin dependent ID */ 3043c66ac9dbSNicholas Bellinger str = str2; 3044c66ac9dbSNicholas Bellinger } else { 3045c66ac9dbSNicholas Bellinger *str = '\0'; /* Terminate for *se_plugin_str */ 3046c66ac9dbSNicholas Bellinger str++; /* Skip to start of plugin dependent ID */ 3047c66ac9dbSNicholas Bellinger } 3048c66ac9dbSNicholas Bellinger 304957103d7fSJingoo Han ret = kstrtoul(str, 0, &plugin_dep_id); 3050c66ac9dbSNicholas Bellinger if (ret < 0) { 305157103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 3052c66ac9dbSNicholas Bellinger " plugin_dep_id\n", ret); 305357103d7fSJingoo Han return ERR_PTR(ret); 3054c66ac9dbSNicholas Bellinger } 3055c66ac9dbSNicholas Bellinger /* 3056c66ac9dbSNicholas Bellinger * Load up TCM subsystem plugins if they have not already been loaded. 3057c66ac9dbSNicholas Bellinger */ 3058dbc5623eSNicholas Bellinger transport_subsystem_check_init(); 3059c66ac9dbSNicholas Bellinger 3060c66ac9dbSNicholas Bellinger hba = core_alloc_hba(se_plugin_str, plugin_dep_id, 0); 3061c66ac9dbSNicholas Bellinger if (IS_ERR(hba)) 3062c66ac9dbSNicholas Bellinger return ERR_CAST(hba); 3063c66ac9dbSNicholas Bellinger 3064c66ac9dbSNicholas Bellinger config_group_init_type_name(&hba->hba_group, name, 3065c66ac9dbSNicholas Bellinger &target_core_hba_cit); 3066c66ac9dbSNicholas Bellinger 3067c66ac9dbSNicholas Bellinger return &hba->hba_group; 3068c66ac9dbSNicholas Bellinger } 3069c66ac9dbSNicholas Bellinger 3070c66ac9dbSNicholas Bellinger static void target_core_call_delhbafromtarget( 3071c66ac9dbSNicholas Bellinger struct config_group *group, 3072c66ac9dbSNicholas Bellinger struct config_item *item) 3073c66ac9dbSNicholas Bellinger { 30741f6fe7cbSNicholas Bellinger /* 30751f6fe7cbSNicholas Bellinger * core_delete_hba() is called from target_core_hba_item_ops->release() 30761f6fe7cbSNicholas Bellinger * -> target_core_hba_release() 30771f6fe7cbSNicholas Bellinger */ 3078c66ac9dbSNicholas Bellinger config_item_put(item); 3079c66ac9dbSNicholas Bellinger } 3080c66ac9dbSNicholas Bellinger 3081c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_group_ops = { 3082c66ac9dbSNicholas Bellinger .make_group = target_core_call_addhbatotarget, 3083c66ac9dbSNicholas Bellinger .drop_item = target_core_call_delhbafromtarget, 3084c66ac9dbSNicholas Bellinger }; 3085c66ac9dbSNicholas Bellinger 3086c66ac9dbSNicholas Bellinger static struct config_item_type target_core_cit = { 3087c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 3088c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_group_ops, 3089c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 3090c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 3091c66ac9dbSNicholas Bellinger }; 3092c66ac9dbSNicholas Bellinger 3093c66ac9dbSNicholas Bellinger /* Stop functions for struct config_item_type target_core_hba_cit */ 3094c66ac9dbSNicholas Bellinger 30950a06d430SChristoph Hellwig void target_setup_backend_cits(struct target_backend *tb) 309673112edcSNicholas Bellinger { 30970a06d430SChristoph Hellwig target_core_setup_dev_cit(tb); 30980a06d430SChristoph Hellwig target_core_setup_dev_attrib_cit(tb); 30990a06d430SChristoph Hellwig target_core_setup_dev_pr_cit(tb); 31000a06d430SChristoph Hellwig target_core_setup_dev_wwn_cit(tb); 31010a06d430SChristoph Hellwig target_core_setup_dev_alua_tg_pt_gps_cit(tb); 31020a06d430SChristoph Hellwig target_core_setup_dev_stat_cit(tb); 310373112edcSNicholas Bellinger } 310473112edcSNicholas Bellinger 310554550fabSAxel Lin static int __init target_core_init_configfs(void) 3106c66ac9dbSNicholas Bellinger { 3107c66ac9dbSNicholas Bellinger struct config_group *target_cg, *hba_cg = NULL, *alua_cg = NULL; 3108c66ac9dbSNicholas Bellinger struct config_group *lu_gp_cg = NULL; 3109d588cf8fSChristoph Hellwig struct configfs_subsystem *subsys = &target_core_fabrics; 3110c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 3111c66ac9dbSNicholas Bellinger int ret; 3112c66ac9dbSNicholas Bellinger 31136708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Loading Generic Kernel Storage" 3114c66ac9dbSNicholas Bellinger " Engine: %s on %s/%s on "UTS_RELEASE"\n", 3115c66ac9dbSNicholas Bellinger TARGET_CORE_VERSION, utsname()->sysname, utsname()->machine); 3116c66ac9dbSNicholas Bellinger 3117c66ac9dbSNicholas Bellinger config_group_init(&subsys->su_group); 3118c66ac9dbSNicholas Bellinger mutex_init(&subsys->su_mutex); 3119c66ac9dbSNicholas Bellinger 3120e3d6f909SAndy Grover ret = init_se_kmem_caches(); 3121c66ac9dbSNicholas Bellinger if (ret < 0) 3122e3d6f909SAndy Grover return ret; 3123c66ac9dbSNicholas Bellinger /* 3124c66ac9dbSNicholas Bellinger * Create $CONFIGFS/target/core default group for HBA <-> Storage Object 3125c66ac9dbSNicholas Bellinger * and ALUA Logical Unit Group and Target Port Group infrastructure. 3126c66ac9dbSNicholas Bellinger */ 3127c66ac9dbSNicholas Bellinger target_cg = &subsys->su_group; 3128ab6dae82SAndy Grover target_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3129c66ac9dbSNicholas Bellinger GFP_KERNEL); 31306708bb27SAndy Grover if (!target_cg->default_groups) { 31316708bb27SAndy Grover pr_err("Unable to allocate target_cg->default_groups\n"); 313237bb7899SPeter Senna Tschudin ret = -ENOMEM; 3133c66ac9dbSNicholas Bellinger goto out_global; 3134c66ac9dbSNicholas Bellinger } 3135c66ac9dbSNicholas Bellinger 3136e3d6f909SAndy Grover config_group_init_type_name(&target_core_hbagroup, 3137c66ac9dbSNicholas Bellinger "core", &target_core_cit); 3138e3d6f909SAndy Grover target_cg->default_groups[0] = &target_core_hbagroup; 3139c66ac9dbSNicholas Bellinger target_cg->default_groups[1] = NULL; 3140c66ac9dbSNicholas Bellinger /* 3141c66ac9dbSNicholas Bellinger * Create ALUA infrastructure under /sys/kernel/config/target/core/alua/ 3142c66ac9dbSNicholas Bellinger */ 3143e3d6f909SAndy Grover hba_cg = &target_core_hbagroup; 314413f6a914SSebastian Andrzej Siewior hba_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3145c66ac9dbSNicholas Bellinger GFP_KERNEL); 31466708bb27SAndy Grover if (!hba_cg->default_groups) { 31476708bb27SAndy Grover pr_err("Unable to allocate hba_cg->default_groups\n"); 314837bb7899SPeter Senna Tschudin ret = -ENOMEM; 3149c66ac9dbSNicholas Bellinger goto out_global; 3150c66ac9dbSNicholas Bellinger } 3151e3d6f909SAndy Grover config_group_init_type_name(&alua_group, 3152c66ac9dbSNicholas Bellinger "alua", &target_core_alua_cit); 3153e3d6f909SAndy Grover hba_cg->default_groups[0] = &alua_group; 3154c66ac9dbSNicholas Bellinger hba_cg->default_groups[1] = NULL; 3155c66ac9dbSNicholas Bellinger /* 3156c66ac9dbSNicholas Bellinger * Add ALUA Logical Unit Group and Target Port Group ConfigFS 3157c66ac9dbSNicholas Bellinger * groups under /sys/kernel/config/target/core/alua/ 3158c66ac9dbSNicholas Bellinger */ 3159e3d6f909SAndy Grover alua_cg = &alua_group; 316013f6a914SSebastian Andrzej Siewior alua_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3161c66ac9dbSNicholas Bellinger GFP_KERNEL); 31626708bb27SAndy Grover if (!alua_cg->default_groups) { 31636708bb27SAndy Grover pr_err("Unable to allocate alua_cg->default_groups\n"); 316437bb7899SPeter Senna Tschudin ret = -ENOMEM; 3165c66ac9dbSNicholas Bellinger goto out_global; 3166c66ac9dbSNicholas Bellinger } 3167c66ac9dbSNicholas Bellinger 3168e3d6f909SAndy Grover config_group_init_type_name(&alua_lu_gps_group, 3169c66ac9dbSNicholas Bellinger "lu_gps", &target_core_alua_lu_gps_cit); 3170e3d6f909SAndy Grover alua_cg->default_groups[0] = &alua_lu_gps_group; 3171c66ac9dbSNicholas Bellinger alua_cg->default_groups[1] = NULL; 3172c66ac9dbSNicholas Bellinger /* 3173c66ac9dbSNicholas Bellinger * Add core/alua/lu_gps/default_lu_gp 3174c66ac9dbSNicholas Bellinger */ 3175c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1); 317637bb7899SPeter Senna Tschudin if (IS_ERR(lu_gp)) { 317737bb7899SPeter Senna Tschudin ret = -ENOMEM; 3178c66ac9dbSNicholas Bellinger goto out_global; 317937bb7899SPeter Senna Tschudin } 3180c66ac9dbSNicholas Bellinger 3181e3d6f909SAndy Grover lu_gp_cg = &alua_lu_gps_group; 318213f6a914SSebastian Andrzej Siewior lu_gp_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3183c66ac9dbSNicholas Bellinger GFP_KERNEL); 31846708bb27SAndy Grover if (!lu_gp_cg->default_groups) { 31856708bb27SAndy Grover pr_err("Unable to allocate lu_gp_cg->default_groups\n"); 318637bb7899SPeter Senna Tschudin ret = -ENOMEM; 3187c66ac9dbSNicholas Bellinger goto out_global; 3188c66ac9dbSNicholas Bellinger } 3189c66ac9dbSNicholas Bellinger 3190c66ac9dbSNicholas Bellinger config_group_init_type_name(&lu_gp->lu_gp_group, "default_lu_gp", 3191c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 3192c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[0] = &lu_gp->lu_gp_group; 3193c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[1] = NULL; 3194e3d6f909SAndy Grover default_lu_gp = lu_gp; 3195c66ac9dbSNicholas Bellinger /* 3196c66ac9dbSNicholas Bellinger * Register the target_core_mod subsystem with configfs. 3197c66ac9dbSNicholas Bellinger */ 3198c66ac9dbSNicholas Bellinger ret = configfs_register_subsystem(subsys); 3199c66ac9dbSNicholas Bellinger if (ret < 0) { 32006708bb27SAndy Grover pr_err("Error %d while registering subsystem %s\n", 3201c66ac9dbSNicholas Bellinger ret, subsys->su_group.cg_item.ci_namebuf); 3202c66ac9dbSNicholas Bellinger goto out_global; 3203c66ac9dbSNicholas Bellinger } 32046708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Initialized ConfigFS Fabric" 3205ce8dd25dSChristoph Hellwig " Infrastructure: "TARGET_CORE_VERSION" on %s/%s" 3206c66ac9dbSNicholas Bellinger " on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); 3207c66ac9dbSNicholas Bellinger /* 3208c66ac9dbSNicholas Bellinger * Register built-in RAMDISK subsystem logic for virtual LUN 0 3209c66ac9dbSNicholas Bellinger */ 3210c66ac9dbSNicholas Bellinger ret = rd_module_init(); 3211c66ac9dbSNicholas Bellinger if (ret < 0) 3212c66ac9dbSNicholas Bellinger goto out; 3213c66ac9dbSNicholas Bellinger 32140d0f9dfbSRoland Dreier ret = core_dev_setup_virtual_lun0(); 32150d0f9dfbSRoland Dreier if (ret < 0) 3216c66ac9dbSNicholas Bellinger goto out; 3217c66ac9dbSNicholas Bellinger 3218f99715acSNicholas Bellinger ret = target_xcopy_setup_pt(); 3219f99715acSNicholas Bellinger if (ret < 0) 3220f99715acSNicholas Bellinger goto out; 3221f99715acSNicholas Bellinger 3222c66ac9dbSNicholas Bellinger return 0; 3223c66ac9dbSNicholas Bellinger 3224c66ac9dbSNicholas Bellinger out: 3225c66ac9dbSNicholas Bellinger configfs_unregister_subsystem(subsys); 3226c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3227c66ac9dbSNicholas Bellinger rd_module_exit(); 3228c66ac9dbSNicholas Bellinger out_global: 3229e3d6f909SAndy Grover if (default_lu_gp) { 3230e3d6f909SAndy Grover core_alua_free_lu_gp(default_lu_gp); 3231e3d6f909SAndy Grover default_lu_gp = NULL; 3232c66ac9dbSNicholas Bellinger } 3233c66ac9dbSNicholas Bellinger if (lu_gp_cg) 3234c66ac9dbSNicholas Bellinger kfree(lu_gp_cg->default_groups); 3235c66ac9dbSNicholas Bellinger if (alua_cg) 3236c66ac9dbSNicholas Bellinger kfree(alua_cg->default_groups); 3237c66ac9dbSNicholas Bellinger if (hba_cg) 3238c66ac9dbSNicholas Bellinger kfree(hba_cg->default_groups); 3239c66ac9dbSNicholas Bellinger kfree(target_cg->default_groups); 3240e3d6f909SAndy Grover release_se_kmem_caches(); 3241e3d6f909SAndy Grover return ret; 3242c66ac9dbSNicholas Bellinger } 3243c66ac9dbSNicholas Bellinger 324454550fabSAxel Lin static void __exit target_core_exit_configfs(void) 3245c66ac9dbSNicholas Bellinger { 3246c66ac9dbSNicholas Bellinger struct config_group *hba_cg, *alua_cg, *lu_gp_cg; 3247c66ac9dbSNicholas Bellinger struct config_item *item; 3248c66ac9dbSNicholas Bellinger int i; 3249c66ac9dbSNicholas Bellinger 3250e3d6f909SAndy Grover lu_gp_cg = &alua_lu_gps_group; 3251c66ac9dbSNicholas Bellinger for (i = 0; lu_gp_cg->default_groups[i]; i++) { 3252c66ac9dbSNicholas Bellinger item = &lu_gp_cg->default_groups[i]->cg_item; 3253c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[i] = NULL; 3254c66ac9dbSNicholas Bellinger config_item_put(item); 3255c66ac9dbSNicholas Bellinger } 3256c66ac9dbSNicholas Bellinger kfree(lu_gp_cg->default_groups); 32577c2bf6e9SNicholas Bellinger lu_gp_cg->default_groups = NULL; 3258c66ac9dbSNicholas Bellinger 3259e3d6f909SAndy Grover alua_cg = &alua_group; 3260c66ac9dbSNicholas Bellinger for (i = 0; alua_cg->default_groups[i]; i++) { 3261c66ac9dbSNicholas Bellinger item = &alua_cg->default_groups[i]->cg_item; 3262c66ac9dbSNicholas Bellinger alua_cg->default_groups[i] = NULL; 3263c66ac9dbSNicholas Bellinger config_item_put(item); 3264c66ac9dbSNicholas Bellinger } 3265c66ac9dbSNicholas Bellinger kfree(alua_cg->default_groups); 32667c2bf6e9SNicholas Bellinger alua_cg->default_groups = NULL; 3267c66ac9dbSNicholas Bellinger 3268e3d6f909SAndy Grover hba_cg = &target_core_hbagroup; 3269c66ac9dbSNicholas Bellinger for (i = 0; hba_cg->default_groups[i]; i++) { 3270c66ac9dbSNicholas Bellinger item = &hba_cg->default_groups[i]->cg_item; 3271c66ac9dbSNicholas Bellinger hba_cg->default_groups[i] = NULL; 3272c66ac9dbSNicholas Bellinger config_item_put(item); 3273c66ac9dbSNicholas Bellinger } 3274c66ac9dbSNicholas Bellinger kfree(hba_cg->default_groups); 32757c2bf6e9SNicholas Bellinger hba_cg->default_groups = NULL; 32767c2bf6e9SNicholas Bellinger /* 32777c2bf6e9SNicholas Bellinger * We expect subsys->su_group.default_groups to be released 32787c2bf6e9SNicholas Bellinger * by configfs subsystem provider logic.. 32797c2bf6e9SNicholas Bellinger */ 3280d588cf8fSChristoph Hellwig configfs_unregister_subsystem(&target_core_fabrics); 3281d588cf8fSChristoph Hellwig kfree(target_core_fabrics.su_group.default_groups); 3282c66ac9dbSNicholas Bellinger 3283e3d6f909SAndy Grover core_alua_free_lu_gp(default_lu_gp); 3284e3d6f909SAndy Grover default_lu_gp = NULL; 32857c2bf6e9SNicholas Bellinger 32866708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Released ConfigFS Fabric" 3287c66ac9dbSNicholas Bellinger " Infrastructure\n"); 3288c66ac9dbSNicholas Bellinger 3289c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3290c66ac9dbSNicholas Bellinger rd_module_exit(); 3291f99715acSNicholas Bellinger target_xcopy_release_pt(); 3292e3d6f909SAndy Grover release_se_kmem_caches(); 3293c66ac9dbSNicholas Bellinger } 3294c66ac9dbSNicholas Bellinger 3295c66ac9dbSNicholas Bellinger MODULE_DESCRIPTION("Target_Core_Mod/ConfigFS"); 3296c66ac9dbSNicholas Bellinger MODULE_AUTHOR("nab@Linux-iSCSI.org"); 3297c66ac9dbSNicholas Bellinger MODULE_LICENSE("GPL"); 3298c66ac9dbSNicholas Bellinger 3299c66ac9dbSNicholas Bellinger module_init(target_core_init_configfs); 3300c66ac9dbSNicholas Bellinger module_exit(target_core_exit_configfs); 3301