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); 502e6f41633SJamie Pocas DEF_CONFIGFS_ATTRIB_SHOW(unmap_zeroes_data); 5032eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_SHOW(max_write_same_len); 5042eafd729SChristoph Hellwig 5052eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_U32(_name) \ 5062eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page,\ 5075873c4d1SChristoph Hellwig size_t count) \ 5085873c4d1SChristoph Hellwig { \ 5092eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); \ 5103effdb90SChristoph Hellwig u32 val; \ 5115873c4d1SChristoph Hellwig int ret; \ 5125873c4d1SChristoph Hellwig \ 5133effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); \ 5143effdb90SChristoph Hellwig if (ret < 0) \ 5153effdb90SChristoph Hellwig return ret; \ 5163effdb90SChristoph Hellwig da->_name = val; \ 5173effdb90SChristoph Hellwig return count; \ 5185873c4d1SChristoph Hellwig } 5195873c4d1SChristoph Hellwig 5202eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_lba_count); 5212eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_block_desc_count); 5222eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity); 5232eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity_alignment); 5242eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_U32(max_write_same_len); 5255873c4d1SChristoph Hellwig 5262eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_BOOL(_name) \ 5272eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page, \ 5283effdb90SChristoph Hellwig size_t count) \ 5293effdb90SChristoph Hellwig { \ 5302eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); \ 5313effdb90SChristoph Hellwig bool flag; \ 5323effdb90SChristoph Hellwig int ret; \ 5333effdb90SChristoph Hellwig \ 5343effdb90SChristoph Hellwig ret = strtobool(page, &flag); \ 5353effdb90SChristoph Hellwig if (ret < 0) \ 5363effdb90SChristoph Hellwig return ret; \ 5373effdb90SChristoph Hellwig da->_name = flag; \ 5383effdb90SChristoph Hellwig return count; \ 5393effdb90SChristoph Hellwig } 5403effdb90SChristoph Hellwig 5412eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_fua_write); 5422eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_caw); 5432eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_3pc); 5442eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(enforce_pr_isids); 5452eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_BOOL(is_nonrot); 5463effdb90SChristoph Hellwig 5472eafd729SChristoph Hellwig #define DEF_CONFIGFS_ATTRIB_STORE_STUB(_name) \ 5482eafd729SChristoph Hellwig static ssize_t _name##_store(struct config_item *item, const char *page,\ 5493effdb90SChristoph Hellwig size_t count) \ 5503effdb90SChristoph Hellwig { \ 5513effdb90SChristoph Hellwig printk_once(KERN_WARNING \ 5523effdb90SChristoph Hellwig "ignoring deprecated ##_name## attribute\n"); \ 5533effdb90SChristoph Hellwig return count; \ 5543effdb90SChristoph Hellwig } 5553effdb90SChristoph Hellwig 5562eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_dpo); 5572eafd729SChristoph Hellwig DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_fua_read); 5583effdb90SChristoph Hellwig 5593effdb90SChristoph Hellwig static void dev_set_t10_wwn_model_alias(struct se_device *dev) 5603effdb90SChristoph Hellwig { 5613effdb90SChristoph Hellwig const char *configname; 5623effdb90SChristoph Hellwig 5633effdb90SChristoph Hellwig configname = config_item_name(&dev->dev_group.cg_item); 5643effdb90SChristoph Hellwig if (strlen(configname) >= 16) { 5653effdb90SChristoph Hellwig pr_warn("dev[%p]: Backstore name '%s' is too long for " 5663effdb90SChristoph Hellwig "INQUIRY_MODEL, truncating to 16 bytes\n", dev, 5673effdb90SChristoph Hellwig configname); 5683effdb90SChristoph Hellwig } 5693effdb90SChristoph Hellwig snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); 5703effdb90SChristoph Hellwig } 5713effdb90SChristoph Hellwig 5722eafd729SChristoph Hellwig static ssize_t emulate_model_alias_store(struct config_item *item, 5733effdb90SChristoph Hellwig const char *page, size_t count) 5743effdb90SChristoph Hellwig { 5752eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 5763effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 5773effdb90SChristoph Hellwig bool flag; 5783effdb90SChristoph Hellwig int ret; 5793effdb90SChristoph Hellwig 5803effdb90SChristoph Hellwig if (dev->export_count) { 5813effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change model alias" 5823effdb90SChristoph Hellwig " while export_count is %d\n", 5833effdb90SChristoph Hellwig dev, dev->export_count); 5843effdb90SChristoph Hellwig return -EINVAL; 5853effdb90SChristoph Hellwig } 5863effdb90SChristoph Hellwig 5873effdb90SChristoph Hellwig ret = strtobool(page, &flag); 5883effdb90SChristoph Hellwig if (ret < 0) 5893effdb90SChristoph Hellwig return ret; 5903effdb90SChristoph Hellwig 5913effdb90SChristoph Hellwig if (flag) { 5923effdb90SChristoph Hellwig dev_set_t10_wwn_model_alias(dev); 5933effdb90SChristoph Hellwig } else { 5943effdb90SChristoph Hellwig strncpy(&dev->t10_wwn.model[0], 5953effdb90SChristoph Hellwig dev->transport->inquiry_prod, 16); 5963effdb90SChristoph Hellwig } 5973effdb90SChristoph Hellwig da->emulate_model_alias = flag; 5983effdb90SChristoph Hellwig return count; 5993effdb90SChristoph Hellwig } 6003effdb90SChristoph Hellwig 6012eafd729SChristoph Hellwig static ssize_t emulate_write_cache_store(struct config_item *item, 6023effdb90SChristoph Hellwig const char *page, size_t count) 6033effdb90SChristoph Hellwig { 6042eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6053effdb90SChristoph Hellwig bool flag; 6063effdb90SChristoph Hellwig int ret; 6073effdb90SChristoph Hellwig 6083effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6093effdb90SChristoph Hellwig if (ret < 0) 6103effdb90SChristoph Hellwig return ret; 6113effdb90SChristoph Hellwig 6123effdb90SChristoph Hellwig if (flag && da->da_dev->transport->get_write_cache) { 6133effdb90SChristoph Hellwig pr_err("emulate_write_cache not supported for this device\n"); 6143effdb90SChristoph Hellwig return -EINVAL; 6153effdb90SChristoph Hellwig } 6163effdb90SChristoph Hellwig 6173effdb90SChristoph Hellwig da->emulate_write_cache = flag; 6183effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", 6193effdb90SChristoph Hellwig da->da_dev, flag); 6203effdb90SChristoph Hellwig return count; 6213effdb90SChristoph Hellwig } 6223effdb90SChristoph Hellwig 6232eafd729SChristoph Hellwig static ssize_t emulate_ua_intlck_ctrl_store(struct config_item *item, 6243effdb90SChristoph Hellwig const char *page, size_t count) 6253effdb90SChristoph Hellwig { 6262eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6273effdb90SChristoph Hellwig u32 val; 6283effdb90SChristoph Hellwig int ret; 6293effdb90SChristoph Hellwig 6303effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 6313effdb90SChristoph Hellwig if (ret < 0) 6323effdb90SChristoph Hellwig return ret; 6333effdb90SChristoph Hellwig 6343effdb90SChristoph Hellwig if (val != 0 && val != 1 && val != 2) { 6353effdb90SChristoph Hellwig pr_err("Illegal value %d\n", val); 6363effdb90SChristoph Hellwig return -EINVAL; 6373effdb90SChristoph Hellwig } 6383effdb90SChristoph Hellwig 6393effdb90SChristoph Hellwig if (da->da_dev->export_count) { 6403effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device" 6413effdb90SChristoph Hellwig " UA_INTRLCK_CTRL while export_count is %d\n", 6423effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 6433effdb90SChristoph Hellwig return -EINVAL; 6443effdb90SChristoph Hellwig } 6453effdb90SChristoph Hellwig da->emulate_ua_intlck_ctrl = val; 6463effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", 6473effdb90SChristoph Hellwig da->da_dev, val); 6483effdb90SChristoph Hellwig return count; 6493effdb90SChristoph Hellwig } 6503effdb90SChristoph Hellwig 6512eafd729SChristoph Hellwig static ssize_t emulate_tas_store(struct config_item *item, 6523effdb90SChristoph Hellwig const char *page, size_t count) 6533effdb90SChristoph Hellwig { 6542eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6553effdb90SChristoph Hellwig bool flag; 6563effdb90SChristoph Hellwig int ret; 6573effdb90SChristoph Hellwig 6583effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6593effdb90SChristoph Hellwig if (ret < 0) 6603effdb90SChristoph Hellwig return ret; 6613effdb90SChristoph Hellwig 6623effdb90SChristoph Hellwig if (da->da_dev->export_count) { 6633effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device TAS while" 6643effdb90SChristoph Hellwig " export_count is %d\n", 6653effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 6663effdb90SChristoph Hellwig return -EINVAL; 6673effdb90SChristoph Hellwig } 6683effdb90SChristoph Hellwig da->emulate_tas = flag; 6693effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", 6703effdb90SChristoph Hellwig da->da_dev, flag ? "Enabled" : "Disabled"); 6713effdb90SChristoph Hellwig 6723effdb90SChristoph Hellwig return count; 6733effdb90SChristoph Hellwig } 6743effdb90SChristoph Hellwig 6752eafd729SChristoph Hellwig static ssize_t emulate_tpu_store(struct config_item *item, 6763effdb90SChristoph Hellwig const char *page, size_t count) 6773effdb90SChristoph Hellwig { 6782eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 6793effdb90SChristoph Hellwig bool flag; 6803effdb90SChristoph Hellwig int ret; 6813effdb90SChristoph Hellwig 6823effdb90SChristoph Hellwig ret = strtobool(page, &flag); 6833effdb90SChristoph Hellwig if (ret < 0) 6843effdb90SChristoph Hellwig return ret; 6853effdb90SChristoph Hellwig 6863effdb90SChristoph Hellwig /* 6873effdb90SChristoph Hellwig * We expect this value to be non-zero when generic Block Layer 6883effdb90SChristoph Hellwig * Discard supported is detected iblock_create_virtdevice(). 6893effdb90SChristoph Hellwig */ 6903effdb90SChristoph Hellwig if (flag && !da->max_unmap_block_desc_count) { 6913effdb90SChristoph Hellwig pr_err("Generic Block Discard not supported\n"); 6923effdb90SChristoph Hellwig return -ENOSYS; 6933effdb90SChristoph Hellwig } 6943effdb90SChristoph Hellwig 6953effdb90SChristoph Hellwig da->emulate_tpu = flag; 6963effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", 6973effdb90SChristoph Hellwig da->da_dev, flag); 6983effdb90SChristoph Hellwig return count; 6993effdb90SChristoph Hellwig } 7003effdb90SChristoph Hellwig 7012eafd729SChristoph Hellwig static ssize_t emulate_tpws_store(struct config_item *item, 7023effdb90SChristoph Hellwig const char *page, size_t count) 7033effdb90SChristoph Hellwig { 7042eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7053effdb90SChristoph Hellwig bool flag; 7063effdb90SChristoph Hellwig int ret; 7073effdb90SChristoph Hellwig 7083effdb90SChristoph Hellwig ret = strtobool(page, &flag); 7093effdb90SChristoph Hellwig if (ret < 0) 7103effdb90SChristoph Hellwig return ret; 7113effdb90SChristoph Hellwig 7123effdb90SChristoph Hellwig /* 7133effdb90SChristoph Hellwig * We expect this value to be non-zero when generic Block Layer 7143effdb90SChristoph Hellwig * Discard supported is detected iblock_create_virtdevice(). 7153effdb90SChristoph Hellwig */ 7163effdb90SChristoph Hellwig if (flag && !da->max_unmap_block_desc_count) { 7173effdb90SChristoph Hellwig pr_err("Generic Block Discard not supported\n"); 7183effdb90SChristoph Hellwig return -ENOSYS; 7193effdb90SChristoph Hellwig } 7203effdb90SChristoph Hellwig 7213effdb90SChristoph Hellwig da->emulate_tpws = flag; 7223effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", 7233effdb90SChristoph Hellwig da->da_dev, flag); 7243effdb90SChristoph Hellwig return count; 7253effdb90SChristoph Hellwig } 7263effdb90SChristoph Hellwig 7272eafd729SChristoph Hellwig static ssize_t pi_prot_type_store(struct config_item *item, 7283effdb90SChristoph Hellwig const char *page, size_t count) 7293effdb90SChristoph Hellwig { 7302eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7313effdb90SChristoph Hellwig int old_prot = da->pi_prot_type, ret; 7323effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 7333effdb90SChristoph Hellwig u32 flag; 7343effdb90SChristoph Hellwig 7353effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &flag); 7363effdb90SChristoph Hellwig if (ret < 0) 7373effdb90SChristoph Hellwig return ret; 7383effdb90SChristoph Hellwig 7393effdb90SChristoph Hellwig if (flag != 0 && flag != 1 && flag != 2 && flag != 3) { 7403effdb90SChristoph Hellwig pr_err("Illegal value %d for pi_prot_type\n", flag); 7413effdb90SChristoph Hellwig return -EINVAL; 7423effdb90SChristoph Hellwig } 7433effdb90SChristoph Hellwig if (flag == 2) { 7443effdb90SChristoph Hellwig pr_err("DIF TYPE2 protection currently not supported\n"); 7453effdb90SChristoph Hellwig return -ENOSYS; 7463effdb90SChristoph Hellwig } 7473effdb90SChristoph Hellwig if (da->hw_pi_prot_type) { 7483effdb90SChristoph Hellwig pr_warn("DIF protection enabled on underlying hardware," 7493effdb90SChristoph Hellwig " ignoring\n"); 7503effdb90SChristoph Hellwig return count; 7513effdb90SChristoph Hellwig } 7523effdb90SChristoph Hellwig if (!dev->transport->init_prot || !dev->transport->free_prot) { 7533effdb90SChristoph Hellwig /* 0 is only allowed value for non-supporting backends */ 7543effdb90SChristoph Hellwig if (flag == 0) 755bc1a7d6aSAndy Grover return count; 7563effdb90SChristoph Hellwig 7573effdb90SChristoph Hellwig pr_err("DIF protection not supported by backend: %s\n", 7583effdb90SChristoph Hellwig dev->transport->name); 7593effdb90SChristoph Hellwig return -ENOSYS; 7603effdb90SChristoph Hellwig } 7613effdb90SChristoph Hellwig if (!(dev->dev_flags & DF_CONFIGURED)) { 7623effdb90SChristoph Hellwig pr_err("DIF protection requires device to be configured\n"); 7633effdb90SChristoph Hellwig return -ENODEV; 7643effdb90SChristoph Hellwig } 7653effdb90SChristoph Hellwig if (dev->export_count) { 7663effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device PROT type while" 7673effdb90SChristoph Hellwig " export_count is %d\n", dev, dev->export_count); 7683effdb90SChristoph Hellwig return -EINVAL; 7693effdb90SChristoph Hellwig } 7703effdb90SChristoph Hellwig 7713effdb90SChristoph Hellwig da->pi_prot_type = flag; 7723effdb90SChristoph Hellwig 7733effdb90SChristoph Hellwig if (flag && !old_prot) { 7743effdb90SChristoph Hellwig ret = dev->transport->init_prot(dev); 7753effdb90SChristoph Hellwig if (ret) { 7763effdb90SChristoph Hellwig da->pi_prot_type = old_prot; 7773effdb90SChristoph Hellwig return ret; 7783effdb90SChristoph Hellwig } 7793effdb90SChristoph Hellwig 7803effdb90SChristoph Hellwig } else if (!flag && old_prot) { 7813effdb90SChristoph Hellwig dev->transport->free_prot(dev); 7823effdb90SChristoph Hellwig } 7833effdb90SChristoph Hellwig 7843effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag); 7853effdb90SChristoph Hellwig return count; 7863effdb90SChristoph Hellwig } 7873effdb90SChristoph Hellwig 7882eafd729SChristoph Hellwig static ssize_t pi_prot_format_store(struct config_item *item, 7893effdb90SChristoph Hellwig const char *page, size_t count) 7903effdb90SChristoph Hellwig { 7912eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 7923effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 7933effdb90SChristoph Hellwig bool flag; 7943effdb90SChristoph Hellwig int ret; 7953effdb90SChristoph Hellwig 7963effdb90SChristoph Hellwig ret = strtobool(page, &flag); 7973effdb90SChristoph Hellwig if (ret < 0) 7983effdb90SChristoph Hellwig return ret; 7993effdb90SChristoph Hellwig 8003effdb90SChristoph Hellwig if (!flag) 8013effdb90SChristoph Hellwig return count; 8023effdb90SChristoph Hellwig 8033effdb90SChristoph Hellwig if (!dev->transport->format_prot) { 8043effdb90SChristoph Hellwig pr_err("DIF protection format not supported by backend %s\n", 8053effdb90SChristoph Hellwig dev->transport->name); 8063effdb90SChristoph Hellwig return -ENOSYS; 8073effdb90SChristoph Hellwig } 8083effdb90SChristoph Hellwig if (!(dev->dev_flags & DF_CONFIGURED)) { 8093effdb90SChristoph Hellwig pr_err("DIF protection format requires device to be configured\n"); 8103effdb90SChristoph Hellwig return -ENODEV; 8113effdb90SChristoph Hellwig } 8123effdb90SChristoph Hellwig if (dev->export_count) { 8133effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to format SE Device PROT type while" 8143effdb90SChristoph Hellwig " export_count is %d\n", dev, dev->export_count); 8153effdb90SChristoph Hellwig return -EINVAL; 8163effdb90SChristoph Hellwig } 8173effdb90SChristoph Hellwig 8183effdb90SChristoph Hellwig ret = dev->transport->format_prot(dev); 8193effdb90SChristoph Hellwig if (ret) 8203effdb90SChristoph Hellwig return ret; 8213effdb90SChristoph Hellwig 8223effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device Protection Format complete\n", dev); 8233effdb90SChristoph Hellwig return count; 8243effdb90SChristoph Hellwig } 8253effdb90SChristoph Hellwig 8262eafd729SChristoph Hellwig static ssize_t force_pr_aptpl_store(struct config_item *item, 8273effdb90SChristoph Hellwig const char *page, size_t count) 8283effdb90SChristoph Hellwig { 8292eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 8303effdb90SChristoph Hellwig bool flag; 8313effdb90SChristoph Hellwig int ret; 8323effdb90SChristoph Hellwig 8333effdb90SChristoph Hellwig ret = strtobool(page, &flag); 8343effdb90SChristoph Hellwig if (ret < 0) 8353effdb90SChristoph Hellwig return ret; 8363effdb90SChristoph Hellwig if (da->da_dev->export_count) { 8373effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to set force_pr_aptpl while" 8383effdb90SChristoph Hellwig " export_count is %d\n", 8393effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 8403effdb90SChristoph Hellwig return -EINVAL; 8413effdb90SChristoph Hellwig } 8423effdb90SChristoph Hellwig 8433effdb90SChristoph Hellwig da->force_pr_aptpl = flag; 8443effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", da->da_dev, flag); 8453effdb90SChristoph Hellwig return count; 8463effdb90SChristoph Hellwig } 8473effdb90SChristoph Hellwig 8482eafd729SChristoph Hellwig static ssize_t emulate_rest_reord_store(struct config_item *item, 8493effdb90SChristoph Hellwig const char *page, size_t count) 8503effdb90SChristoph Hellwig { 8512eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 8523effdb90SChristoph Hellwig bool flag; 8533effdb90SChristoph Hellwig int ret; 8543effdb90SChristoph Hellwig 8553effdb90SChristoph Hellwig ret = strtobool(page, &flag); 8563effdb90SChristoph Hellwig if (ret < 0) 8573effdb90SChristoph Hellwig return ret; 8583effdb90SChristoph Hellwig 8593effdb90SChristoph Hellwig if (flag != 0) { 8603effdb90SChristoph Hellwig printk(KERN_ERR "dev[%p]: SE Device emulation of restricted" 8613effdb90SChristoph Hellwig " reordering not implemented\n", da->da_dev); 8623effdb90SChristoph Hellwig return -ENOSYS; 8633effdb90SChristoph Hellwig } 8643effdb90SChristoph Hellwig da->emulate_rest_reord = flag; 8653effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", 8663effdb90SChristoph Hellwig da->da_dev, flag); 8673effdb90SChristoph Hellwig return count; 8683effdb90SChristoph Hellwig } 8693effdb90SChristoph Hellwig 870e6f41633SJamie Pocas static ssize_t unmap_zeroes_data_store(struct config_item *item, 871e6f41633SJamie Pocas const char *page, size_t count) 872e6f41633SJamie Pocas { 873e6f41633SJamie Pocas struct se_dev_attrib *da = to_attrib(item); 874e6f41633SJamie Pocas bool flag; 875e6f41633SJamie Pocas int ret; 876e6f41633SJamie Pocas 877e6f41633SJamie Pocas ret = strtobool(page, &flag); 878e6f41633SJamie Pocas if (ret < 0) 879e6f41633SJamie Pocas return ret; 880e6f41633SJamie Pocas 881e6f41633SJamie Pocas if (da->da_dev->export_count) { 882e6f41633SJamie Pocas pr_err("dev[%p]: Unable to change SE Device" 883e6f41633SJamie Pocas " unmap_zeroes_data while export_count is %d\n", 884e6f41633SJamie Pocas da->da_dev, da->da_dev->export_count); 885e6f41633SJamie Pocas return -EINVAL; 886e6f41633SJamie Pocas } 887e6f41633SJamie Pocas /* 888e6f41633SJamie Pocas * We expect this value to be non-zero when generic Block Layer 889e6f41633SJamie Pocas * Discard supported is detected iblock_configure_device(). 890e6f41633SJamie Pocas */ 891e6f41633SJamie Pocas if (flag && !da->max_unmap_block_desc_count) { 892e6f41633SJamie Pocas pr_err("dev[%p]: Thin Provisioning LBPRZ will not be set" 893e6f41633SJamie Pocas " because max_unmap_block_desc_count is zero\n", 894e6f41633SJamie Pocas da->da_dev); 895e6f41633SJamie Pocas return -ENOSYS; 896e6f41633SJamie Pocas } 897e6f41633SJamie Pocas da->unmap_zeroes_data = flag; 898e6f41633SJamie Pocas pr_debug("dev[%p]: SE Device Thin Provisioning LBPRZ bit: %d\n", 899e6f41633SJamie Pocas da->da_dev, flag); 900e6f41633SJamie Pocas return 0; 901e6f41633SJamie Pocas } 902e6f41633SJamie Pocas 9033effdb90SChristoph Hellwig /* 9043effdb90SChristoph Hellwig * Note, this can only be called on unexported SE Device Object. 9053effdb90SChristoph Hellwig */ 9062eafd729SChristoph Hellwig static ssize_t queue_depth_store(struct config_item *item, 9073effdb90SChristoph Hellwig const char *page, size_t count) 9083effdb90SChristoph Hellwig { 9092eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9103effdb90SChristoph Hellwig struct se_device *dev = da->da_dev; 9113effdb90SChristoph Hellwig u32 val; 9123effdb90SChristoph Hellwig int ret; 9133effdb90SChristoph Hellwig 9143effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 9153effdb90SChristoph Hellwig if (ret < 0) 9163effdb90SChristoph Hellwig return ret; 9173effdb90SChristoph Hellwig 9183effdb90SChristoph Hellwig if (dev->export_count) { 9193effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device TCQ while" 9203effdb90SChristoph Hellwig " export_count is %d\n", 9213effdb90SChristoph Hellwig dev, dev->export_count); 9223effdb90SChristoph Hellwig return -EINVAL; 9233effdb90SChristoph Hellwig } 9243effdb90SChristoph Hellwig if (!val) { 9253effdb90SChristoph Hellwig pr_err("dev[%p]: Illegal ZERO value for queue_depth\n", dev); 9263effdb90SChristoph Hellwig return -EINVAL; 9273effdb90SChristoph Hellwig } 9283effdb90SChristoph Hellwig 9293effdb90SChristoph Hellwig if (val > dev->dev_attrib.queue_depth) { 9303effdb90SChristoph Hellwig if (val > dev->dev_attrib.hw_queue_depth) { 9313effdb90SChristoph Hellwig pr_err("dev[%p]: Passed queue_depth:" 9323effdb90SChristoph Hellwig " %u exceeds TCM/SE_Device MAX" 9333effdb90SChristoph Hellwig " TCQ: %u\n", dev, val, 9343effdb90SChristoph Hellwig dev->dev_attrib.hw_queue_depth); 9353effdb90SChristoph Hellwig return -EINVAL; 9363effdb90SChristoph Hellwig } 9373effdb90SChristoph Hellwig } 9383effdb90SChristoph Hellwig da->queue_depth = dev->queue_depth = val; 9393effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", dev, val); 9403effdb90SChristoph Hellwig return count; 9413effdb90SChristoph Hellwig } 9423effdb90SChristoph Hellwig 9432eafd729SChristoph Hellwig static ssize_t optimal_sectors_store(struct config_item *item, 9443effdb90SChristoph Hellwig const char *page, size_t count) 9453effdb90SChristoph Hellwig { 9462eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9473effdb90SChristoph Hellwig u32 val; 9483effdb90SChristoph Hellwig int ret; 9493effdb90SChristoph Hellwig 9503effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 9513effdb90SChristoph Hellwig if (ret < 0) 9523effdb90SChristoph Hellwig return ret; 9533effdb90SChristoph Hellwig 9543effdb90SChristoph Hellwig if (da->da_dev->export_count) { 9553effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device" 9563effdb90SChristoph Hellwig " optimal_sectors while export_count is %d\n", 9573effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 9583effdb90SChristoph Hellwig return -EINVAL; 9593effdb90SChristoph Hellwig } 9603effdb90SChristoph Hellwig if (val > da->hw_max_sectors) { 9613effdb90SChristoph Hellwig pr_err("dev[%p]: Passed optimal_sectors %u cannot be" 9623effdb90SChristoph Hellwig " greater than hw_max_sectors: %u\n", 9633effdb90SChristoph Hellwig da->da_dev, val, da->hw_max_sectors); 9643effdb90SChristoph Hellwig return -EINVAL; 9653effdb90SChristoph Hellwig } 9663effdb90SChristoph Hellwig 9673effdb90SChristoph Hellwig da->optimal_sectors = val; 9683effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", 9693effdb90SChristoph Hellwig da->da_dev, val); 9703effdb90SChristoph Hellwig return count; 9713effdb90SChristoph Hellwig } 9723effdb90SChristoph Hellwig 9732eafd729SChristoph Hellwig static ssize_t block_size_store(struct config_item *item, 9743effdb90SChristoph Hellwig const char *page, size_t count) 9753effdb90SChristoph Hellwig { 9762eafd729SChristoph Hellwig struct se_dev_attrib *da = to_attrib(item); 9773effdb90SChristoph Hellwig u32 val; 9783effdb90SChristoph Hellwig int ret; 9793effdb90SChristoph Hellwig 9803effdb90SChristoph Hellwig ret = kstrtou32(page, 0, &val); 9813effdb90SChristoph Hellwig if (ret < 0) 9823effdb90SChristoph Hellwig return ret; 9833effdb90SChristoph Hellwig 9843effdb90SChristoph Hellwig if (da->da_dev->export_count) { 9853effdb90SChristoph Hellwig pr_err("dev[%p]: Unable to change SE Device block_size" 9863effdb90SChristoph Hellwig " while export_count is %d\n", 9873effdb90SChristoph Hellwig da->da_dev, da->da_dev->export_count); 9883effdb90SChristoph Hellwig return -EINVAL; 9893effdb90SChristoph Hellwig } 9903effdb90SChristoph Hellwig 9913effdb90SChristoph Hellwig if (val != 512 && val != 1024 && val != 2048 && val != 4096) { 9923effdb90SChristoph Hellwig pr_err("dev[%p]: Illegal value for block_device: %u" 9933effdb90SChristoph Hellwig " for SE device, must be 512, 1024, 2048 or 4096\n", 9943effdb90SChristoph Hellwig da->da_dev, val); 9953effdb90SChristoph Hellwig return -EINVAL; 9963effdb90SChristoph Hellwig } 9973effdb90SChristoph Hellwig 9983effdb90SChristoph Hellwig da->block_size = val; 9993effdb90SChristoph Hellwig if (da->max_bytes_per_io) 10003effdb90SChristoph Hellwig da->hw_max_sectors = da->max_bytes_per_io / val; 10013effdb90SChristoph Hellwig 10023effdb90SChristoph Hellwig pr_debug("dev[%p]: SE Device block_size changed to %u\n", 10033effdb90SChristoph Hellwig da->da_dev, val); 10043effdb90SChristoph Hellwig return count; 10053effdb90SChristoph Hellwig } 10065873c4d1SChristoph Hellwig 10072eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_model_alias); 10082eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_dpo); 10092eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_fua_write); 10102eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_fua_read); 10112eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_write_cache); 10122eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_ua_intlck_ctrl); 10132eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tas); 10142eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tpu); 10152eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_tpws); 10162eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_caw); 10172eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_3pc); 10182eafd729SChristoph Hellwig CONFIGFS_ATTR(, pi_prot_type); 10192eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_pi_prot_type); 10202eafd729SChristoph Hellwig CONFIGFS_ATTR(, pi_prot_format); 10212eafd729SChristoph Hellwig CONFIGFS_ATTR(, enforce_pr_isids); 10222eafd729SChristoph Hellwig CONFIGFS_ATTR(, is_nonrot); 10232eafd729SChristoph Hellwig CONFIGFS_ATTR(, emulate_rest_reord); 10242eafd729SChristoph Hellwig CONFIGFS_ATTR(, force_pr_aptpl); 10252eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_block_size); 10262eafd729SChristoph Hellwig CONFIGFS_ATTR(, block_size); 10272eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_max_sectors); 10282eafd729SChristoph Hellwig CONFIGFS_ATTR(, optimal_sectors); 10292eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(, hw_queue_depth); 10302eafd729SChristoph Hellwig CONFIGFS_ATTR(, queue_depth); 10312eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_unmap_lba_count); 10322eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_unmap_block_desc_count); 10332eafd729SChristoph Hellwig CONFIGFS_ATTR(, unmap_granularity); 10342eafd729SChristoph Hellwig CONFIGFS_ATTR(, unmap_granularity_alignment); 1035e6f41633SJamie Pocas CONFIGFS_ATTR(, unmap_zeroes_data); 10362eafd729SChristoph Hellwig CONFIGFS_ATTR(, max_write_same_len); 1037c66ac9dbSNicholas Bellinger 10385873c4d1SChristoph Hellwig /* 10395873c4d1SChristoph Hellwig * dev_attrib attributes for devices using the target core SBC/SPC 10405873c4d1SChristoph Hellwig * interpreter. Any backend using spc_parse_cdb should be using 10415873c4d1SChristoph Hellwig * these. 10425873c4d1SChristoph Hellwig */ 10435873c4d1SChristoph Hellwig struct configfs_attribute *sbc_attrib_attrs[] = { 10442eafd729SChristoph Hellwig &attr_emulate_model_alias, 10452eafd729SChristoph Hellwig &attr_emulate_dpo, 10462eafd729SChristoph Hellwig &attr_emulate_fua_write, 10472eafd729SChristoph Hellwig &attr_emulate_fua_read, 10482eafd729SChristoph Hellwig &attr_emulate_write_cache, 10492eafd729SChristoph Hellwig &attr_emulate_ua_intlck_ctrl, 10502eafd729SChristoph Hellwig &attr_emulate_tas, 10512eafd729SChristoph Hellwig &attr_emulate_tpu, 10522eafd729SChristoph Hellwig &attr_emulate_tpws, 10532eafd729SChristoph Hellwig &attr_emulate_caw, 10542eafd729SChristoph Hellwig &attr_emulate_3pc, 10552eafd729SChristoph Hellwig &attr_pi_prot_type, 10562eafd729SChristoph Hellwig &attr_hw_pi_prot_type, 10572eafd729SChristoph Hellwig &attr_pi_prot_format, 10582eafd729SChristoph Hellwig &attr_enforce_pr_isids, 10592eafd729SChristoph Hellwig &attr_is_nonrot, 10602eafd729SChristoph Hellwig &attr_emulate_rest_reord, 10612eafd729SChristoph Hellwig &attr_force_pr_aptpl, 10622eafd729SChristoph Hellwig &attr_hw_block_size, 10632eafd729SChristoph Hellwig &attr_block_size, 10642eafd729SChristoph Hellwig &attr_hw_max_sectors, 10652eafd729SChristoph Hellwig &attr_optimal_sectors, 10662eafd729SChristoph Hellwig &attr_hw_queue_depth, 10672eafd729SChristoph Hellwig &attr_queue_depth, 10682eafd729SChristoph Hellwig &attr_max_unmap_lba_count, 10692eafd729SChristoph Hellwig &attr_max_unmap_block_desc_count, 10702eafd729SChristoph Hellwig &attr_unmap_granularity, 10712eafd729SChristoph Hellwig &attr_unmap_granularity_alignment, 1072e6f41633SJamie Pocas &attr_unmap_zeroes_data, 10732eafd729SChristoph Hellwig &attr_max_write_same_len, 10745873c4d1SChristoph Hellwig NULL, 10755873c4d1SChristoph Hellwig }; 10765873c4d1SChristoph Hellwig EXPORT_SYMBOL(sbc_attrib_attrs); 10775873c4d1SChristoph Hellwig 10785873c4d1SChristoph Hellwig /* 10795873c4d1SChristoph Hellwig * Minimal dev_attrib attributes for devices passing through CDBs. 10805873c4d1SChristoph Hellwig * In this case we only provide a few read-only attributes for 10815873c4d1SChristoph Hellwig * backwards compatibility. 10825873c4d1SChristoph Hellwig */ 10835873c4d1SChristoph Hellwig struct configfs_attribute *passthrough_attrib_attrs[] = { 10842eafd729SChristoph Hellwig &attr_hw_pi_prot_type, 10852eafd729SChristoph Hellwig &attr_hw_block_size, 10862eafd729SChristoph Hellwig &attr_hw_max_sectors, 10872eafd729SChristoph Hellwig &attr_hw_queue_depth, 10885873c4d1SChristoph Hellwig NULL, 10895873c4d1SChristoph Hellwig }; 10905873c4d1SChristoph Hellwig EXPORT_SYMBOL(passthrough_attrib_attrs); 10915873c4d1SChristoph Hellwig 10922eafd729SChristoph Hellwig TB_CIT_SETUP_DRV(dev_attrib, NULL, NULL); 1093c66ac9dbSNicholas Bellinger 1094f79a897eSNicholas Bellinger /* End functions for struct config_item_type tb_dev_attrib_cit */ 1095c66ac9dbSNicholas Bellinger 1096f8d389c6SNicholas Bellinger /* Start functions for struct config_item_type tb_dev_wwn_cit */ 1097c66ac9dbSNicholas Bellinger 10982eafd729SChristoph Hellwig static struct t10_wwn *to_t10_wwn(struct config_item *item) 10992eafd729SChristoph Hellwig { 11002eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_wwn, t10_wwn_group); 11012eafd729SChristoph Hellwig } 1102c66ac9dbSNicholas Bellinger 1103c66ac9dbSNicholas Bellinger /* 1104c66ac9dbSNicholas Bellinger * VPD page 0x80 Unit serial 1105c66ac9dbSNicholas Bellinger */ 11062eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_unit_serial_show(struct config_item *item, 1107c66ac9dbSNicholas Bellinger char *page) 1108c66ac9dbSNicholas Bellinger { 1109c66ac9dbSNicholas Bellinger return sprintf(page, "T10 VPD Unit Serial Number: %s\n", 11102eafd729SChristoph Hellwig &to_t10_wwn(item)->unit_serial[0]); 1111c66ac9dbSNicholas Bellinger } 1112c66ac9dbSNicholas Bellinger 11132eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_unit_serial_store(struct config_item *item, 11142eafd729SChristoph Hellwig const char *page, size_t count) 1115c66ac9dbSNicholas Bellinger { 11162eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); 11170fd97ccfSChristoph Hellwig struct se_device *dev = t10_wwn->t10_dev; 1118c66ac9dbSNicholas Bellinger unsigned char buf[INQUIRY_VPD_SERIAL_LEN]; 1119c66ac9dbSNicholas Bellinger 1120c66ac9dbSNicholas Bellinger /* 1121c66ac9dbSNicholas Bellinger * If Linux/SCSI subsystem_api_t plugin got a VPD Unit Serial 1122c66ac9dbSNicholas Bellinger * from the struct scsi_device level firmware, do not allow 1123c66ac9dbSNicholas Bellinger * VPD Unit Serial to be emulated. 1124c66ac9dbSNicholas Bellinger * 1125c66ac9dbSNicholas Bellinger * Note this struct scsi_device could also be emulating VPD 1126c66ac9dbSNicholas Bellinger * information from its drivers/scsi LLD. But for now we assume 1127c66ac9dbSNicholas Bellinger * it is doing 'the right thing' wrt a world wide unique 1128c66ac9dbSNicholas Bellinger * VPD Unit Serial Number that OS dependent multipath can depend on. 1129c66ac9dbSNicholas Bellinger */ 11300fd97ccfSChristoph Hellwig if (dev->dev_flags & DF_FIRMWARE_VPD_UNIT_SERIAL) { 11316708bb27SAndy Grover pr_err("Underlying SCSI device firmware provided VPD" 1132c66ac9dbSNicholas Bellinger " Unit Serial, ignoring request\n"); 1133c66ac9dbSNicholas Bellinger return -EOPNOTSUPP; 1134c66ac9dbSNicholas Bellinger } 1135c66ac9dbSNicholas Bellinger 113660d645a4SDan Carpenter if (strlen(page) >= INQUIRY_VPD_SERIAL_LEN) { 11376708bb27SAndy Grover pr_err("Emulated VPD Unit Serial exceeds" 1138c66ac9dbSNicholas Bellinger " INQUIRY_VPD_SERIAL_LEN: %d\n", INQUIRY_VPD_SERIAL_LEN); 1139c66ac9dbSNicholas Bellinger return -EOVERFLOW; 1140c66ac9dbSNicholas Bellinger } 1141c66ac9dbSNicholas Bellinger /* 1142c66ac9dbSNicholas Bellinger * Check to see if any active $FABRIC_MOD exports exist. If they 1143c66ac9dbSNicholas Bellinger * do exist, fail here as changing this information on the fly 1144c66ac9dbSNicholas Bellinger * (underneath the initiator side OS dependent multipath code) 1145c66ac9dbSNicholas Bellinger * could cause negative effects. 1146c66ac9dbSNicholas Bellinger */ 11470fd97ccfSChristoph Hellwig if (dev->export_count) { 11486708bb27SAndy Grover pr_err("Unable to set VPD Unit Serial while" 1149c66ac9dbSNicholas Bellinger " active %d $FABRIC_MOD exports exist\n", 11500fd97ccfSChristoph Hellwig dev->export_count); 1151c66ac9dbSNicholas Bellinger return -EINVAL; 1152c66ac9dbSNicholas Bellinger } 11530fd97ccfSChristoph Hellwig 1154c66ac9dbSNicholas Bellinger /* 1155c66ac9dbSNicholas Bellinger * This currently assumes ASCII encoding for emulated VPD Unit Serial. 1156c66ac9dbSNicholas Bellinger * 1157c66ac9dbSNicholas Bellinger * Also, strip any newline added from the userspace 1158c66ac9dbSNicholas Bellinger * echo $UUID > $TARGET/$HBA/$STORAGE_OBJECT/wwn/vpd_unit_serial 1159c66ac9dbSNicholas Bellinger */ 1160c66ac9dbSNicholas Bellinger memset(buf, 0, INQUIRY_VPD_SERIAL_LEN); 1161c66ac9dbSNicholas Bellinger snprintf(buf, INQUIRY_VPD_SERIAL_LEN, "%s", page); 11620fd97ccfSChristoph Hellwig snprintf(dev->t10_wwn.unit_serial, INQUIRY_VPD_SERIAL_LEN, 1163c66ac9dbSNicholas Bellinger "%s", strstrip(buf)); 11640fd97ccfSChristoph Hellwig dev->dev_flags |= DF_EMULATED_VPD_UNIT_SERIAL; 1165c66ac9dbSNicholas Bellinger 11666708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set emulated VPD Unit Serial:" 11670fd97ccfSChristoph Hellwig " %s\n", dev->t10_wwn.unit_serial); 1168c66ac9dbSNicholas Bellinger 1169c66ac9dbSNicholas Bellinger return count; 1170c66ac9dbSNicholas Bellinger } 1171c66ac9dbSNicholas Bellinger 1172c66ac9dbSNicholas Bellinger /* 1173c66ac9dbSNicholas Bellinger * VPD page 0x83 Protocol Identifier 1174c66ac9dbSNicholas Bellinger */ 11752eafd729SChristoph Hellwig static ssize_t target_wwn_vpd_protocol_identifier_show(struct config_item *item, 1176c66ac9dbSNicholas Bellinger char *page) 1177c66ac9dbSNicholas Bellinger { 11782eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); 1179c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; 1180c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; 1181c66ac9dbSNicholas Bellinger ssize_t len = 0; 1182c66ac9dbSNicholas Bellinger 1183c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); 1184c66ac9dbSNicholas Bellinger 1185c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); 1186c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { 11876708bb27SAndy Grover if (!vpd->protocol_identifier_set) 1188c66ac9dbSNicholas Bellinger continue; 1189c66ac9dbSNicholas Bellinger 1190c66ac9dbSNicholas Bellinger transport_dump_vpd_proto_id(vpd, buf, VPD_TMP_BUF_SIZE); 1191c66ac9dbSNicholas Bellinger 11926708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) 1193c66ac9dbSNicholas Bellinger break; 1194c66ac9dbSNicholas Bellinger 1195c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 1196c66ac9dbSNicholas Bellinger } 1197c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); 1198c66ac9dbSNicholas Bellinger 1199c66ac9dbSNicholas Bellinger return len; 1200c66ac9dbSNicholas Bellinger } 1201c66ac9dbSNicholas Bellinger 1202c66ac9dbSNicholas Bellinger /* 1203c66ac9dbSNicholas Bellinger * Generic wrapper for dumping VPD identifiers by association. 1204c66ac9dbSNicholas Bellinger */ 1205c66ac9dbSNicholas Bellinger #define DEF_DEV_WWN_ASSOC_SHOW(_name, _assoc) \ 12062eafd729SChristoph Hellwig static ssize_t target_wwn_##_name##_show(struct config_item *item, \ 1207c66ac9dbSNicholas Bellinger char *page) \ 1208c66ac9dbSNicholas Bellinger { \ 12092eafd729SChristoph Hellwig struct t10_wwn *t10_wwn = to_t10_wwn(item); \ 1210c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; \ 1211c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; \ 1212c66ac9dbSNicholas Bellinger ssize_t len = 0; \ 1213c66ac9dbSNicholas Bellinger \ 1214c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); \ 1215c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { \ 1216c66ac9dbSNicholas Bellinger if (vpd->association != _assoc) \ 1217c66ac9dbSNicholas Bellinger continue; \ 1218c66ac9dbSNicholas Bellinger \ 1219c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1220c66ac9dbSNicholas Bellinger transport_dump_vpd_assoc(vpd, buf, VPD_TMP_BUF_SIZE); \ 12216708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1222c66ac9dbSNicholas Bellinger break; \ 1223c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1224c66ac9dbSNicholas Bellinger \ 1225c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1226c66ac9dbSNicholas Bellinger transport_dump_vpd_ident_type(vpd, buf, VPD_TMP_BUF_SIZE); \ 12276708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1228c66ac9dbSNicholas Bellinger break; \ 1229c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1230c66ac9dbSNicholas Bellinger \ 1231c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 1232c66ac9dbSNicholas Bellinger transport_dump_vpd_ident(vpd, buf, VPD_TMP_BUF_SIZE); \ 12336708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) \ 1234c66ac9dbSNicholas Bellinger break; \ 1235c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 1236c66ac9dbSNicholas Bellinger } \ 1237c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); \ 1238c66ac9dbSNicholas Bellinger \ 1239c66ac9dbSNicholas Bellinger return len; \ 1240c66ac9dbSNicholas Bellinger } 1241c66ac9dbSNicholas Bellinger 12422eafd729SChristoph Hellwig /* VPD page 0x83 Association: Logical Unit */ 1243c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_logical_unit, 0x00); 12442eafd729SChristoph Hellwig /* VPD page 0x83 Association: Target Port */ 1245c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_target_port, 0x10); 12462eafd729SChristoph Hellwig /* VPD page 0x83 Association: SCSI Target Device */ 1247c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_scsi_target_device, 0x20); 1248c66ac9dbSNicholas Bellinger 12492eafd729SChristoph Hellwig CONFIGFS_ATTR(target_wwn_, vpd_unit_serial); 12502eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_protocol_identifier); 12512eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_logical_unit); 12522eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_target_port); 12532eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_scsi_target_device); 1254c66ac9dbSNicholas Bellinger 1255c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_wwn_attrs[] = { 12562eafd729SChristoph Hellwig &target_wwn_attr_vpd_unit_serial, 12572eafd729SChristoph Hellwig &target_wwn_attr_vpd_protocol_identifier, 12582eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_logical_unit, 12592eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_target_port, 12602eafd729SChristoph Hellwig &target_wwn_attr_vpd_assoc_scsi_target_device, 1261c66ac9dbSNicholas Bellinger NULL, 1262c66ac9dbSNicholas Bellinger }; 1263c66ac9dbSNicholas Bellinger 12642eafd729SChristoph Hellwig TB_CIT_SETUP(dev_wwn, NULL, NULL, target_core_dev_wwn_attrs); 1265c66ac9dbSNicholas Bellinger 1266f8d389c6SNicholas Bellinger /* End functions for struct config_item_type tb_dev_wwn_cit */ 1267c66ac9dbSNicholas Bellinger 126891e2e39bSNicholas Bellinger /* Start functions for struct config_item_type tb_dev_pr_cit */ 1269c66ac9dbSNicholas Bellinger 12702eafd729SChristoph Hellwig static struct se_device *pr_to_dev(struct config_item *item) 12712eafd729SChristoph Hellwig { 12722eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_device, 12732eafd729SChristoph Hellwig dev_pr_group); 12742eafd729SChristoph Hellwig } 1275c66ac9dbSNicholas Bellinger 1276d977f437SChristoph Hellwig static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev, 1277d977f437SChristoph Hellwig char *page) 1278c66ac9dbSNicholas Bellinger { 1279c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1280c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1281c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1282c66ac9dbSNicholas Bellinger 1283c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1284c66ac9dbSNicholas Bellinger 1285c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1286d977f437SChristoph Hellwig if (!pr_reg) 1287d977f437SChristoph Hellwig return sprintf(page, "No SPC-3 Reservation holder\n"); 1288d977f437SChristoph Hellwig 1289c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1290d2843c17SAndy Grover core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); 1291c66ac9dbSNicholas Bellinger 1292d977f437SChristoph Hellwig return sprintf(page, "SPC-3 Reservation: %s Initiator: %s%s\n", 1293e3d6f909SAndy Grover se_nacl->se_tpg->se_tpg_tfo->get_fabric_name(), 1294d2843c17SAndy Grover se_nacl->initiatorname, i_buf); 1295c66ac9dbSNicholas Bellinger } 1296c66ac9dbSNicholas Bellinger 1297d977f437SChristoph Hellwig static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev, 1298d977f437SChristoph Hellwig char *page) 1299c66ac9dbSNicholas Bellinger { 1300c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1301d977f437SChristoph Hellwig ssize_t len; 1302c66ac9dbSNicholas Bellinger 1303c66ac9dbSNicholas Bellinger se_nacl = dev->dev_reserved_node_acl; 1304d977f437SChristoph Hellwig if (se_nacl) { 1305d977f437SChristoph Hellwig len = sprintf(page, 1306d977f437SChristoph Hellwig "SPC-2 Reservation: %s Initiator: %s\n", 1307e3d6f909SAndy Grover se_nacl->se_tpg->se_tpg_tfo->get_fabric_name(), 1308c66ac9dbSNicholas Bellinger se_nacl->initiatorname); 1309d977f437SChristoph Hellwig } else { 1310d977f437SChristoph Hellwig len = sprintf(page, "No SPC-2 Reservation holder\n"); 1311d977f437SChristoph Hellwig } 1312d977f437SChristoph Hellwig return len; 1313c66ac9dbSNicholas Bellinger } 1314c66ac9dbSNicholas Bellinger 13152eafd729SChristoph Hellwig static ssize_t target_pr_res_holder_show(struct config_item *item, char *page) 1316c66ac9dbSNicholas Bellinger { 13172eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1318d977f437SChristoph Hellwig int ret; 1319c66ac9dbSNicholas Bellinger 1320a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1321d977f437SChristoph Hellwig return sprintf(page, "Passthrough\n"); 1322c66ac9dbSNicholas Bellinger 1323d977f437SChristoph Hellwig spin_lock(&dev->dev_reservation_lock); 1324d977f437SChristoph Hellwig if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 1325d977f437SChristoph Hellwig ret = target_core_dev_pr_show_spc2_res(dev, page); 1326d977f437SChristoph Hellwig else 1327d977f437SChristoph Hellwig ret = target_core_dev_pr_show_spc3_res(dev, page); 1328d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1329d977f437SChristoph Hellwig return ret; 1330c66ac9dbSNicholas Bellinger } 1331c66ac9dbSNicholas Bellinger 13322eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_all_tgt_pts_show(struct config_item *item, 13332eafd729SChristoph Hellwig char *page) 1334c66ac9dbSNicholas Bellinger { 13352eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1336c66ac9dbSNicholas Bellinger ssize_t len = 0; 1337c66ac9dbSNicholas Bellinger 1338c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1339d977f437SChristoph Hellwig if (!dev->dev_pr_res_holder) { 1340c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1341d977f437SChristoph Hellwig } else if (dev->dev_pr_res_holder->pr_reg_all_tg_pt) { 1342c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: All Target" 1343c66ac9dbSNicholas Bellinger " Ports registration\n"); 1344d977f437SChristoph Hellwig } else { 1345c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: Single" 1346c66ac9dbSNicholas Bellinger " Target Port registration\n"); 1347d977f437SChristoph Hellwig } 1348c66ac9dbSNicholas Bellinger 1349d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1350c66ac9dbSNicholas Bellinger return len; 1351c66ac9dbSNicholas Bellinger } 1352c66ac9dbSNicholas Bellinger 13532eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_generation_show(struct config_item *item, 13542eafd729SChristoph Hellwig char *page) 1355c66ac9dbSNicholas Bellinger { 13562eafd729SChristoph Hellwig return sprintf(page, "0x%08x\n", pr_to_dev(item)->t10_pr.pr_generation); 1357c66ac9dbSNicholas Bellinger } 1358c66ac9dbSNicholas Bellinger 1359c66ac9dbSNicholas Bellinger 13602eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_holder_tg_port_show(struct config_item *item, 13612eafd729SChristoph Hellwig char *page) 1362c66ac9dbSNicholas Bellinger { 13632eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1364c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1365c66ac9dbSNicholas Bellinger struct se_portal_group *se_tpg; 1366c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 13679ac8928eSChristoph Hellwig const struct target_core_fabric_ops *tfo; 1368c66ac9dbSNicholas Bellinger ssize_t len = 0; 1369c66ac9dbSNicholas Bellinger 1370c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1371c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 13726708bb27SAndy Grover if (!pr_reg) { 1373c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1374d977f437SChristoph Hellwig goto out_unlock; 1375c66ac9dbSNicholas Bellinger } 1376d977f437SChristoph Hellwig 1377c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1378c66ac9dbSNicholas Bellinger se_tpg = se_nacl->se_tpg; 1379e3d6f909SAndy Grover tfo = se_tpg->se_tpg_tfo; 1380c66ac9dbSNicholas Bellinger 1381c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: %s" 1382c66ac9dbSNicholas Bellinger " Target Node Endpoint: %s\n", tfo->get_fabric_name(), 1383c66ac9dbSNicholas Bellinger tfo->tpg_get_wwn(se_tpg)); 1384c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: Relative Port" 138535d1efe8SMasanari Iida " Identifier Tag: %hu %s Portal Group Tag: %hu" 1386f2d30680SHannes Reinecke " %s Logical Unit: %llu\n", pr_reg->tg_pt_sep_rtpi, 1387c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg), 138879dc9c9eSNicholas Bellinger tfo->get_fabric_name(), pr_reg->pr_aptpl_target_lun); 1389c66ac9dbSNicholas Bellinger 1390d977f437SChristoph Hellwig out_unlock: 1391d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1392c66ac9dbSNicholas Bellinger return len; 1393c66ac9dbSNicholas Bellinger } 1394c66ac9dbSNicholas Bellinger 1395c66ac9dbSNicholas Bellinger 13962eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_registered_i_pts_show(struct config_item *item, 13972eafd729SChristoph Hellwig char *page) 1398c66ac9dbSNicholas Bellinger { 13992eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14009ac8928eSChristoph Hellwig const struct target_core_fabric_ops *tfo; 1401c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1402c66ac9dbSNicholas Bellinger unsigned char buf[384]; 1403c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1404c66ac9dbSNicholas Bellinger ssize_t len = 0; 1405d2843c17SAndy Grover int reg_count = 0; 1406c66ac9dbSNicholas Bellinger 1407c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 PR Registrations:\n"); 1408c66ac9dbSNicholas Bellinger 14090fd97ccfSChristoph Hellwig spin_lock(&dev->t10_pr.registration_lock); 14100fd97ccfSChristoph Hellwig list_for_each_entry(pr_reg, &dev->t10_pr.registration_list, 1411c66ac9dbSNicholas Bellinger pr_reg_list) { 1412c66ac9dbSNicholas Bellinger 1413c66ac9dbSNicholas Bellinger memset(buf, 0, 384); 1414c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1415c66ac9dbSNicholas Bellinger tfo = pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo; 1416d2843c17SAndy Grover core_pr_dump_initiator_port(pr_reg, i_buf, 1417c66ac9dbSNicholas Bellinger PR_REG_ISID_ID_LEN); 1418c66ac9dbSNicholas Bellinger sprintf(buf, "%s Node: %s%s Key: 0x%016Lx PRgen: 0x%08x\n", 1419c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), 1420d2843c17SAndy Grover pr_reg->pr_reg_nacl->initiatorname, i_buf, pr_reg->pr_res_key, 1421c66ac9dbSNicholas Bellinger pr_reg->pr_res_generation); 1422c66ac9dbSNicholas Bellinger 14236708bb27SAndy Grover if (len + strlen(buf) >= PAGE_SIZE) 1424c66ac9dbSNicholas Bellinger break; 1425c66ac9dbSNicholas Bellinger 1426c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 1427c66ac9dbSNicholas Bellinger reg_count++; 1428c66ac9dbSNicholas Bellinger } 14290fd97ccfSChristoph Hellwig spin_unlock(&dev->t10_pr.registration_lock); 1430c66ac9dbSNicholas Bellinger 14316708bb27SAndy Grover if (!reg_count) 1432c66ac9dbSNicholas Bellinger len += sprintf(page+len, "None\n"); 1433c66ac9dbSNicholas Bellinger 1434c66ac9dbSNicholas Bellinger return len; 1435c66ac9dbSNicholas Bellinger } 1436c66ac9dbSNicholas Bellinger 14372eafd729SChristoph Hellwig static ssize_t target_pr_res_pr_type_show(struct config_item *item, char *page) 1438c66ac9dbSNicholas Bellinger { 14392eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 1440c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1441c66ac9dbSNicholas Bellinger ssize_t len = 0; 1442c66ac9dbSNicholas Bellinger 1443c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1444c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1445d977f437SChristoph Hellwig if (pr_reg) { 1446c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation Type: %s\n", 1447c66ac9dbSNicholas Bellinger core_scsi3_pr_dump_type(pr_reg->pr_res_type)); 1448d977f437SChristoph Hellwig } else { 1449d977f437SChristoph Hellwig len = sprintf(page, "No SPC-3 Reservation holder\n"); 1450d977f437SChristoph Hellwig } 1451c66ac9dbSNicholas Bellinger 1452d977f437SChristoph Hellwig spin_unlock(&dev->dev_reservation_lock); 1453c66ac9dbSNicholas Bellinger return len; 1454c66ac9dbSNicholas Bellinger } 1455c66ac9dbSNicholas Bellinger 14562eafd729SChristoph Hellwig static ssize_t target_pr_res_type_show(struct config_item *item, char *page) 1457c66ac9dbSNicholas Bellinger { 14582eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14592eafd729SChristoph Hellwig 1460a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1461d977f437SChristoph Hellwig return sprintf(page, "SPC_PASSTHROUGH\n"); 1462d977f437SChristoph Hellwig else if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 1463d977f437SChristoph Hellwig return sprintf(page, "SPC2_RESERVATIONS\n"); 1464d977f437SChristoph Hellwig else 1465d977f437SChristoph Hellwig return sprintf(page, "SPC3_PERSISTENT_RESERVATIONS\n"); 1466c66ac9dbSNicholas Bellinger } 1467c66ac9dbSNicholas Bellinger 14682eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_active_show(struct config_item *item, 14692eafd729SChristoph Hellwig char *page) 1470c66ac9dbSNicholas Bellinger { 14712eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14722eafd729SChristoph Hellwig 1473a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1474c66ac9dbSNicholas Bellinger return 0; 1475c66ac9dbSNicholas Bellinger 1476c66ac9dbSNicholas Bellinger return sprintf(page, "APTPL Bit Status: %s\n", 14770fd97ccfSChristoph Hellwig (dev->t10_pr.pr_aptpl_active) ? "Activated" : "Disabled"); 1478c66ac9dbSNicholas Bellinger } 1479c66ac9dbSNicholas Bellinger 14802eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_metadata_show(struct config_item *item, 14812eafd729SChristoph Hellwig char *page) 1482c66ac9dbSNicholas Bellinger { 14832eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 14842eafd729SChristoph Hellwig 1485a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 1486c66ac9dbSNicholas Bellinger return 0; 1487c66ac9dbSNicholas Bellinger 1488c66ac9dbSNicholas Bellinger return sprintf(page, "Ready to process PR APTPL metadata..\n"); 1489c66ac9dbSNicholas Bellinger } 1490c66ac9dbSNicholas Bellinger 1491c66ac9dbSNicholas Bellinger enum { 1492c66ac9dbSNicholas Bellinger Opt_initiator_fabric, Opt_initiator_node, Opt_initiator_sid, 1493c66ac9dbSNicholas Bellinger Opt_sa_res_key, Opt_res_holder, Opt_res_type, Opt_res_scope, 1494c66ac9dbSNicholas Bellinger Opt_res_all_tg_pt, Opt_mapped_lun, Opt_target_fabric, 1495c66ac9dbSNicholas Bellinger Opt_target_node, Opt_tpgt, Opt_port_rtpi, Opt_target_lun, Opt_err 1496c66ac9dbSNicholas Bellinger }; 1497c66ac9dbSNicholas Bellinger 1498c66ac9dbSNicholas Bellinger static match_table_t tokens = { 1499c66ac9dbSNicholas Bellinger {Opt_initiator_fabric, "initiator_fabric=%s"}, 1500c66ac9dbSNicholas Bellinger {Opt_initiator_node, "initiator_node=%s"}, 1501c66ac9dbSNicholas Bellinger {Opt_initiator_sid, "initiator_sid=%s"}, 1502c66ac9dbSNicholas Bellinger {Opt_sa_res_key, "sa_res_key=%s"}, 1503c66ac9dbSNicholas Bellinger {Opt_res_holder, "res_holder=%d"}, 1504c66ac9dbSNicholas Bellinger {Opt_res_type, "res_type=%d"}, 1505c66ac9dbSNicholas Bellinger {Opt_res_scope, "res_scope=%d"}, 1506c66ac9dbSNicholas Bellinger {Opt_res_all_tg_pt, "res_all_tg_pt=%d"}, 1507f2d30680SHannes Reinecke {Opt_mapped_lun, "mapped_lun=%lld"}, 1508c66ac9dbSNicholas Bellinger {Opt_target_fabric, "target_fabric=%s"}, 1509c66ac9dbSNicholas Bellinger {Opt_target_node, "target_node=%s"}, 1510c66ac9dbSNicholas Bellinger {Opt_tpgt, "tpgt=%d"}, 1511c66ac9dbSNicholas Bellinger {Opt_port_rtpi, "port_rtpi=%d"}, 1512f2d30680SHannes Reinecke {Opt_target_lun, "target_lun=%lld"}, 1513c66ac9dbSNicholas Bellinger {Opt_err, NULL} 1514c66ac9dbSNicholas Bellinger }; 1515c66ac9dbSNicholas Bellinger 15162eafd729SChristoph Hellwig static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, 15172eafd729SChristoph Hellwig const char *page, size_t count) 1518c66ac9dbSNicholas Bellinger { 15192eafd729SChristoph Hellwig struct se_device *dev = pr_to_dev(item); 15206d180253SJesper Juhl unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; 15216d180253SJesper Juhl unsigned char *t_fabric = NULL, *t_port = NULL; 15228d213559SJoern Engel char *orig, *ptr, *opts; 1523c66ac9dbSNicholas Bellinger substring_t args[MAX_OPT_ARGS]; 1524c66ac9dbSNicholas Bellinger unsigned long long tmp_ll; 1525c66ac9dbSNicholas Bellinger u64 sa_res_key = 0; 1526f2d30680SHannes Reinecke u64 mapped_lun = 0, target_lun = 0; 1527c66ac9dbSNicholas Bellinger int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token; 152845fb94c2SBart Van Assche u16 tpgt = 0; 152945fb94c2SBart Van Assche u8 type = 0; 1530c66ac9dbSNicholas Bellinger 1531a3541703SAndy Grover if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) 15329105bfc0SAndy Grover return count; 1533d977f437SChristoph Hellwig if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) 15349105bfc0SAndy Grover return count; 1535c66ac9dbSNicholas Bellinger 15360fd97ccfSChristoph Hellwig if (dev->export_count) { 15376708bb27SAndy Grover pr_debug("Unable to process APTPL metadata while" 1538c66ac9dbSNicholas Bellinger " active fabric exports exist\n"); 1539c66ac9dbSNicholas Bellinger return -EINVAL; 1540c66ac9dbSNicholas Bellinger } 1541c66ac9dbSNicholas Bellinger 1542c66ac9dbSNicholas Bellinger opts = kstrdup(page, GFP_KERNEL); 1543c66ac9dbSNicholas Bellinger if (!opts) 1544c66ac9dbSNicholas Bellinger return -ENOMEM; 1545c66ac9dbSNicholas Bellinger 1546c66ac9dbSNicholas Bellinger orig = opts; 154790c161b6SSebastian Andrzej Siewior while ((ptr = strsep(&opts, ",\n")) != NULL) { 1548c66ac9dbSNicholas Bellinger if (!*ptr) 1549c66ac9dbSNicholas Bellinger continue; 1550c66ac9dbSNicholas Bellinger 1551c66ac9dbSNicholas Bellinger token = match_token(ptr, tokens, args); 1552c66ac9dbSNicholas Bellinger switch (token) { 1553c66ac9dbSNicholas Bellinger case Opt_initiator_fabric: 15548d213559SJoern Engel i_fabric = match_strdup(args); 15556d180253SJesper Juhl if (!i_fabric) { 15566d180253SJesper Juhl ret = -ENOMEM; 15576d180253SJesper Juhl goto out; 15586d180253SJesper Juhl } 1559c66ac9dbSNicholas Bellinger break; 1560c66ac9dbSNicholas Bellinger case Opt_initiator_node: 15618d213559SJoern Engel i_port = match_strdup(args); 15626d180253SJesper Juhl if (!i_port) { 15636d180253SJesper Juhl ret = -ENOMEM; 15646d180253SJesper Juhl goto out; 15656d180253SJesper Juhl } 156660d645a4SDan Carpenter if (strlen(i_port) >= PR_APTPL_MAX_IPORT_LEN) { 15676708bb27SAndy Grover pr_err("APTPL metadata initiator_node=" 1568c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_IPORT_LEN: %d\n", 1569c66ac9dbSNicholas Bellinger PR_APTPL_MAX_IPORT_LEN); 1570c66ac9dbSNicholas Bellinger ret = -EINVAL; 1571c66ac9dbSNicholas Bellinger break; 1572c66ac9dbSNicholas Bellinger } 1573c66ac9dbSNicholas Bellinger break; 1574c66ac9dbSNicholas Bellinger case Opt_initiator_sid: 15758d213559SJoern Engel isid = match_strdup(args); 15766d180253SJesper Juhl if (!isid) { 15776d180253SJesper Juhl ret = -ENOMEM; 15786d180253SJesper Juhl goto out; 15796d180253SJesper Juhl } 158060d645a4SDan Carpenter if (strlen(isid) >= PR_REG_ISID_LEN) { 15816708bb27SAndy Grover pr_err("APTPL metadata initiator_isid" 1582c66ac9dbSNicholas Bellinger "= exceeds PR_REG_ISID_LEN: %d\n", 1583c66ac9dbSNicholas Bellinger PR_REG_ISID_LEN); 1584c66ac9dbSNicholas Bellinger ret = -EINVAL; 1585c66ac9dbSNicholas Bellinger break; 1586c66ac9dbSNicholas Bellinger } 1587c66ac9dbSNicholas Bellinger break; 1588c66ac9dbSNicholas Bellinger case Opt_sa_res_key: 15898d213559SJoern Engel ret = kstrtoull(args->from, 0, &tmp_ll); 1590c66ac9dbSNicholas Bellinger if (ret < 0) { 15918d213559SJoern Engel pr_err("kstrtoull() failed for sa_res_key=\n"); 1592c66ac9dbSNicholas Bellinger goto out; 1593c66ac9dbSNicholas Bellinger } 1594c66ac9dbSNicholas Bellinger sa_res_key = (u64)tmp_ll; 1595c66ac9dbSNicholas Bellinger break; 1596c66ac9dbSNicholas Bellinger /* 1597c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Reservation 1598c66ac9dbSNicholas Bellinger */ 1599c66ac9dbSNicholas Bellinger case Opt_res_holder: 1600c2091026SDavid Disseldorp ret = match_int(args, &arg); 1601c2091026SDavid Disseldorp if (ret) 1602c2091026SDavid Disseldorp goto out; 1603c66ac9dbSNicholas Bellinger res_holder = arg; 1604c66ac9dbSNicholas Bellinger break; 1605c66ac9dbSNicholas Bellinger case Opt_res_type: 1606c2091026SDavid Disseldorp ret = match_int(args, &arg); 1607c2091026SDavid Disseldorp if (ret) 1608c2091026SDavid Disseldorp goto out; 1609c66ac9dbSNicholas Bellinger type = (u8)arg; 1610c66ac9dbSNicholas Bellinger break; 1611c66ac9dbSNicholas Bellinger case Opt_res_scope: 1612c2091026SDavid Disseldorp ret = match_int(args, &arg); 1613c2091026SDavid Disseldorp if (ret) 1614c2091026SDavid Disseldorp goto out; 1615c66ac9dbSNicholas Bellinger break; 1616c66ac9dbSNicholas Bellinger case Opt_res_all_tg_pt: 1617c2091026SDavid Disseldorp ret = match_int(args, &arg); 1618c2091026SDavid Disseldorp if (ret) 1619c2091026SDavid Disseldorp goto out; 1620c66ac9dbSNicholas Bellinger all_tg_pt = (int)arg; 1621c66ac9dbSNicholas Bellinger break; 1622c66ac9dbSNicholas Bellinger case Opt_mapped_lun: 1623c2091026SDavid Disseldorp ret = match_int(args, &arg); 1624c2091026SDavid Disseldorp if (ret) 1625c2091026SDavid Disseldorp goto out; 1626f2d30680SHannes Reinecke mapped_lun = (u64)arg; 1627c66ac9dbSNicholas Bellinger break; 1628c66ac9dbSNicholas Bellinger /* 1629c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Target Port 1630c66ac9dbSNicholas Bellinger */ 1631c66ac9dbSNicholas Bellinger case Opt_target_fabric: 16328d213559SJoern Engel t_fabric = match_strdup(args); 16336d180253SJesper Juhl if (!t_fabric) { 16346d180253SJesper Juhl ret = -ENOMEM; 16356d180253SJesper Juhl goto out; 16366d180253SJesper Juhl } 1637c66ac9dbSNicholas Bellinger break; 1638c66ac9dbSNicholas Bellinger case Opt_target_node: 16398d213559SJoern Engel t_port = match_strdup(args); 16406d180253SJesper Juhl if (!t_port) { 16416d180253SJesper Juhl ret = -ENOMEM; 16426d180253SJesper Juhl goto out; 16436d180253SJesper Juhl } 164460d645a4SDan Carpenter if (strlen(t_port) >= PR_APTPL_MAX_TPORT_LEN) { 16456708bb27SAndy Grover pr_err("APTPL metadata target_node=" 1646c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_TPORT_LEN: %d\n", 1647c66ac9dbSNicholas Bellinger PR_APTPL_MAX_TPORT_LEN); 1648c66ac9dbSNicholas Bellinger ret = -EINVAL; 1649c66ac9dbSNicholas Bellinger break; 1650c66ac9dbSNicholas Bellinger } 1651c66ac9dbSNicholas Bellinger break; 1652c66ac9dbSNicholas Bellinger case Opt_tpgt: 1653c2091026SDavid Disseldorp ret = match_int(args, &arg); 1654c2091026SDavid Disseldorp if (ret) 1655c2091026SDavid Disseldorp goto out; 1656c66ac9dbSNicholas Bellinger tpgt = (u16)arg; 1657c66ac9dbSNicholas Bellinger break; 1658c66ac9dbSNicholas Bellinger case Opt_port_rtpi: 1659c2091026SDavid Disseldorp ret = match_int(args, &arg); 1660c2091026SDavid Disseldorp if (ret) 1661c2091026SDavid Disseldorp goto out; 1662c66ac9dbSNicholas Bellinger break; 1663c66ac9dbSNicholas Bellinger case Opt_target_lun: 1664c2091026SDavid Disseldorp ret = match_int(args, &arg); 1665c2091026SDavid Disseldorp if (ret) 1666c2091026SDavid Disseldorp goto out; 1667f2d30680SHannes Reinecke target_lun = (u64)arg; 1668c66ac9dbSNicholas Bellinger break; 1669c66ac9dbSNicholas Bellinger default: 1670c66ac9dbSNicholas Bellinger break; 1671c66ac9dbSNicholas Bellinger } 1672c66ac9dbSNicholas Bellinger } 1673c66ac9dbSNicholas Bellinger 16746708bb27SAndy Grover if (!i_port || !t_port || !sa_res_key) { 16756708bb27SAndy Grover pr_err("Illegal parameters for APTPL registration\n"); 1676c66ac9dbSNicholas Bellinger ret = -EINVAL; 1677c66ac9dbSNicholas Bellinger goto out; 1678c66ac9dbSNicholas Bellinger } 1679c66ac9dbSNicholas Bellinger 1680c66ac9dbSNicholas Bellinger if (res_holder && !(type)) { 16816708bb27SAndy Grover pr_err("Illegal PR type: 0x%02x for reservation" 1682c66ac9dbSNicholas Bellinger " holder\n", type); 1683c66ac9dbSNicholas Bellinger ret = -EINVAL; 1684c66ac9dbSNicholas Bellinger goto out; 1685c66ac9dbSNicholas Bellinger } 1686c66ac9dbSNicholas Bellinger 16870fd97ccfSChristoph Hellwig ret = core_scsi3_alloc_aptpl_registration(&dev->t10_pr, sa_res_key, 1688c66ac9dbSNicholas Bellinger i_port, isid, mapped_lun, t_port, tpgt, target_lun, 1689c66ac9dbSNicholas Bellinger res_holder, all_tg_pt, type); 1690c66ac9dbSNicholas Bellinger out: 16916d180253SJesper Juhl kfree(i_fabric); 16926d180253SJesper Juhl kfree(i_port); 16936d180253SJesper Juhl kfree(isid); 16946d180253SJesper Juhl kfree(t_fabric); 16956d180253SJesper Juhl kfree(t_port); 1696c66ac9dbSNicholas Bellinger kfree(orig); 1697c66ac9dbSNicholas Bellinger return (ret == 0) ? count : ret; 1698c66ac9dbSNicholas Bellinger } 1699c66ac9dbSNicholas Bellinger 1700c66ac9dbSNicholas Bellinger 17012eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_holder); 17022eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_all_tgt_pts); 17032eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_generation); 17042eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_holder_tg_port); 17052eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_registered_i_pts); 17062eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_pr_type); 17072eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_type); 17082eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_pr_, res_aptpl_active); 17092eafd729SChristoph Hellwig CONFIGFS_ATTR(target_pr_, res_aptpl_metadata); 1710c66ac9dbSNicholas Bellinger 1711c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_pr_attrs[] = { 17122eafd729SChristoph Hellwig &target_pr_attr_res_holder, 17132eafd729SChristoph Hellwig &target_pr_attr_res_pr_all_tgt_pts, 17142eafd729SChristoph Hellwig &target_pr_attr_res_pr_generation, 17152eafd729SChristoph Hellwig &target_pr_attr_res_pr_holder_tg_port, 17162eafd729SChristoph Hellwig &target_pr_attr_res_pr_registered_i_pts, 17172eafd729SChristoph Hellwig &target_pr_attr_res_pr_type, 17182eafd729SChristoph Hellwig &target_pr_attr_res_type, 17192eafd729SChristoph Hellwig &target_pr_attr_res_aptpl_active, 17202eafd729SChristoph Hellwig &target_pr_attr_res_aptpl_metadata, 1721c66ac9dbSNicholas Bellinger NULL, 1722c66ac9dbSNicholas Bellinger }; 1723c66ac9dbSNicholas Bellinger 17242eafd729SChristoph Hellwig TB_CIT_SETUP(dev_pr, NULL, NULL, target_core_dev_pr_attrs); 1725c66ac9dbSNicholas Bellinger 172691e2e39bSNicholas Bellinger /* End functions for struct config_item_type tb_dev_pr_cit */ 1727c66ac9dbSNicholas Bellinger 172873112edcSNicholas Bellinger /* Start functions for struct config_item_type tb_dev_cit */ 1729c66ac9dbSNicholas Bellinger 17302eafd729SChristoph Hellwig static inline struct se_device *to_device(struct config_item *item) 1731c66ac9dbSNicholas Bellinger { 17322eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_device, dev_group); 17332eafd729SChristoph Hellwig } 17342eafd729SChristoph Hellwig 17352eafd729SChristoph Hellwig static ssize_t target_dev_info_show(struct config_item *item, char *page) 17362eafd729SChristoph Hellwig { 17372eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1738c66ac9dbSNicholas Bellinger int bl = 0; 1739c66ac9dbSNicholas Bellinger ssize_t read_bytes = 0; 1740c66ac9dbSNicholas Bellinger 17410fd97ccfSChristoph Hellwig transport_dump_dev_state(dev, page, &bl); 1742c66ac9dbSNicholas Bellinger read_bytes += bl; 17430a06d430SChristoph Hellwig read_bytes += dev->transport->show_configfs_dev_params(dev, 17440a06d430SChristoph Hellwig page+read_bytes); 1745c66ac9dbSNicholas Bellinger return read_bytes; 1746c66ac9dbSNicholas Bellinger } 1747c66ac9dbSNicholas Bellinger 17482eafd729SChristoph Hellwig static ssize_t target_dev_control_store(struct config_item *item, 17492eafd729SChristoph Hellwig const char *page, size_t count) 1750c66ac9dbSNicholas Bellinger { 17512eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1752c66ac9dbSNicholas Bellinger 17530a06d430SChristoph Hellwig return dev->transport->set_configfs_dev_params(dev, page, count); 1754c66ac9dbSNicholas Bellinger } 1755c66ac9dbSNicholas Bellinger 17562eafd729SChristoph Hellwig static ssize_t target_dev_alias_show(struct config_item *item, char *page) 1757c66ac9dbSNicholas Bellinger { 17582eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1759c66ac9dbSNicholas Bellinger 17600fd97ccfSChristoph Hellwig if (!(dev->dev_flags & DF_USING_ALIAS)) 1761c66ac9dbSNicholas Bellinger return 0; 1762c66ac9dbSNicholas Bellinger 17630fd97ccfSChristoph Hellwig return snprintf(page, PAGE_SIZE, "%s\n", dev->dev_alias); 1764c66ac9dbSNicholas Bellinger } 1765c66ac9dbSNicholas Bellinger 17662eafd729SChristoph Hellwig static ssize_t target_dev_alias_store(struct config_item *item, 17672eafd729SChristoph Hellwig const char *page, size_t count) 1768c66ac9dbSNicholas Bellinger { 17692eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 17700fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1771c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1772c66ac9dbSNicholas Bellinger 1773c66ac9dbSNicholas Bellinger if (count > (SE_DEV_ALIAS_LEN-1)) { 17746708bb27SAndy Grover pr_err("alias count: %d exceeds" 1775c66ac9dbSNicholas Bellinger " SE_DEV_ALIAS_LEN-1: %u\n", (int)count, 1776c66ac9dbSNicholas Bellinger SE_DEV_ALIAS_LEN-1); 1777c66ac9dbSNicholas Bellinger return -EINVAL; 1778c66ac9dbSNicholas Bellinger } 1779c66ac9dbSNicholas Bellinger 17800fd97ccfSChristoph Hellwig read_bytes = snprintf(&dev->dev_alias[0], SE_DEV_ALIAS_LEN, "%s", page); 17813011684cSDan Carpenter if (!read_bytes) 17823011684cSDan Carpenter return -EINVAL; 17830fd97ccfSChristoph Hellwig if (dev->dev_alias[read_bytes - 1] == '\n') 17840fd97ccfSChristoph Hellwig dev->dev_alias[read_bytes - 1] = '\0'; 17850877eafdSSebastian Andrzej Siewior 17860fd97ccfSChristoph Hellwig dev->dev_flags |= DF_USING_ALIAS; 17873011684cSDan Carpenter 17886708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s/%s set alias: %s\n", 1789c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 17900fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 17910fd97ccfSChristoph Hellwig dev->dev_alias); 1792c66ac9dbSNicholas Bellinger 1793c66ac9dbSNicholas Bellinger return read_bytes; 1794c66ac9dbSNicholas Bellinger } 1795c66ac9dbSNicholas Bellinger 17962eafd729SChristoph Hellwig static ssize_t target_dev_udev_path_show(struct config_item *item, char *page) 1797c66ac9dbSNicholas Bellinger { 17982eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1799c66ac9dbSNicholas Bellinger 18000fd97ccfSChristoph Hellwig if (!(dev->dev_flags & DF_USING_UDEV_PATH)) 1801c66ac9dbSNicholas Bellinger return 0; 1802c66ac9dbSNicholas Bellinger 18030fd97ccfSChristoph Hellwig return snprintf(page, PAGE_SIZE, "%s\n", dev->udev_path); 1804c66ac9dbSNicholas Bellinger } 1805c66ac9dbSNicholas Bellinger 18062eafd729SChristoph Hellwig static ssize_t target_dev_udev_path_store(struct config_item *item, 18072eafd729SChristoph Hellwig const char *page, size_t count) 1808c66ac9dbSNicholas Bellinger { 18092eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 18100fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1811c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1812c66ac9dbSNicholas Bellinger 1813c66ac9dbSNicholas Bellinger if (count > (SE_UDEV_PATH_LEN-1)) { 18146708bb27SAndy Grover pr_err("udev_path count: %d exceeds" 1815c66ac9dbSNicholas Bellinger " SE_UDEV_PATH_LEN-1: %u\n", (int)count, 1816c66ac9dbSNicholas Bellinger SE_UDEV_PATH_LEN-1); 1817c66ac9dbSNicholas Bellinger return -EINVAL; 1818c66ac9dbSNicholas Bellinger } 1819c66ac9dbSNicholas Bellinger 18200fd97ccfSChristoph Hellwig read_bytes = snprintf(&dev->udev_path[0], SE_UDEV_PATH_LEN, 1821c66ac9dbSNicholas Bellinger "%s", page); 18223011684cSDan Carpenter if (!read_bytes) 18233011684cSDan Carpenter return -EINVAL; 18240fd97ccfSChristoph Hellwig if (dev->udev_path[read_bytes - 1] == '\n') 18250fd97ccfSChristoph Hellwig dev->udev_path[read_bytes - 1] = '\0'; 18260877eafdSSebastian Andrzej Siewior 18270fd97ccfSChristoph Hellwig dev->dev_flags |= DF_USING_UDEV_PATH; 18283011684cSDan Carpenter 18296708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s/%s set udev_path: %s\n", 1830c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 18310fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 18320fd97ccfSChristoph Hellwig dev->udev_path); 1833c66ac9dbSNicholas Bellinger 1834c66ac9dbSNicholas Bellinger return read_bytes; 1835c66ac9dbSNicholas Bellinger } 1836c66ac9dbSNicholas Bellinger 18372eafd729SChristoph Hellwig static ssize_t target_dev_enable_show(struct config_item *item, char *page) 183864146db7SAndy Grover { 18392eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 184064146db7SAndy Grover 184164146db7SAndy Grover return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED)); 184264146db7SAndy Grover } 184364146db7SAndy Grover 18442eafd729SChristoph Hellwig static ssize_t target_dev_enable_store(struct config_item *item, 18452eafd729SChristoph Hellwig const char *page, size_t count) 1846c66ac9dbSNicholas Bellinger { 18472eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1848c66ac9dbSNicholas Bellinger char *ptr; 18490fd97ccfSChristoph Hellwig int ret; 1850c66ac9dbSNicholas Bellinger 1851c66ac9dbSNicholas Bellinger ptr = strstr(page, "1"); 18526708bb27SAndy Grover if (!ptr) { 18536708bb27SAndy Grover pr_err("For dev_enable ops, only valid value" 1854c66ac9dbSNicholas Bellinger " is \"1\"\n"); 1855c66ac9dbSNicholas Bellinger return -EINVAL; 1856c66ac9dbSNicholas Bellinger } 1857c66ac9dbSNicholas Bellinger 18580fd97ccfSChristoph Hellwig ret = target_configure_device(dev); 18590fd97ccfSChristoph Hellwig if (ret) 18600fd97ccfSChristoph Hellwig return ret; 1861c66ac9dbSNicholas Bellinger return count; 1862c66ac9dbSNicholas Bellinger } 1863c66ac9dbSNicholas Bellinger 18642eafd729SChristoph Hellwig static ssize_t target_dev_alua_lu_gp_show(struct config_item *item, char *page) 1865c66ac9dbSNicholas Bellinger { 18662eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1867c66ac9dbSNicholas Bellinger struct config_item *lu_ci; 1868c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 1869c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 1870c66ac9dbSNicholas Bellinger ssize_t len = 0; 1871c66ac9dbSNicholas Bellinger 1872c66ac9dbSNicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 1873c87fbd56SChristoph Hellwig if (!lu_gp_mem) 1874c87fbd56SChristoph Hellwig return 0; 1875c66ac9dbSNicholas Bellinger 1876c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 1877c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 18786708bb27SAndy Grover if (lu_gp) { 1879c66ac9dbSNicholas Bellinger lu_ci = &lu_gp->lu_gp_group.cg_item; 1880c66ac9dbSNicholas Bellinger len += sprintf(page, "LU Group Alias: %s\nLU Group ID: %hu\n", 1881c66ac9dbSNicholas Bellinger config_item_name(lu_ci), lu_gp->lu_gp_id); 1882c66ac9dbSNicholas Bellinger } 1883c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1884c66ac9dbSNicholas Bellinger 1885c66ac9dbSNicholas Bellinger return len; 1886c66ac9dbSNicholas Bellinger } 1887c66ac9dbSNicholas Bellinger 18882eafd729SChristoph Hellwig static ssize_t target_dev_alua_lu_gp_store(struct config_item *item, 18892eafd729SChristoph Hellwig const char *page, size_t count) 1890c66ac9dbSNicholas Bellinger { 18912eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 18920fd97ccfSChristoph Hellwig struct se_hba *hba = dev->se_hba; 1893c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = NULL, *lu_gp_new = NULL; 1894c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 1895c66ac9dbSNicholas Bellinger unsigned char buf[LU_GROUP_NAME_BUF]; 1896c66ac9dbSNicholas Bellinger int move = 0; 1897c66ac9dbSNicholas Bellinger 1898c87fbd56SChristoph Hellwig lu_gp_mem = dev->dev_alua_lu_gp_mem; 1899c87fbd56SChristoph Hellwig if (!lu_gp_mem) 19009105bfc0SAndy Grover return count; 1901c87fbd56SChristoph Hellwig 1902c66ac9dbSNicholas Bellinger if (count > LU_GROUP_NAME_BUF) { 19036708bb27SAndy Grover pr_err("ALUA LU Group Alias too large!\n"); 1904c66ac9dbSNicholas Bellinger return -EINVAL; 1905c66ac9dbSNicholas Bellinger } 1906c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 1907c66ac9dbSNicholas Bellinger memcpy(buf, page, count); 1908c66ac9dbSNicholas Bellinger /* 1909c66ac9dbSNicholas Bellinger * Any ALUA logical unit alias besides "NULL" means we will be 1910c66ac9dbSNicholas Bellinger * making a new group association. 1911c66ac9dbSNicholas Bellinger */ 1912c66ac9dbSNicholas Bellinger if (strcmp(strstrip(buf), "NULL")) { 1913c66ac9dbSNicholas Bellinger /* 1914c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name() will increment reference to 1915c66ac9dbSNicholas Bellinger * struct t10_alua_lu_gp. This reference is released with 1916c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name below(). 1917c66ac9dbSNicholas Bellinger */ 1918c66ac9dbSNicholas Bellinger lu_gp_new = core_alua_get_lu_gp_by_name(strstrip(buf)); 19196708bb27SAndy Grover if (!lu_gp_new) 1920c66ac9dbSNicholas Bellinger return -ENODEV; 1921c66ac9dbSNicholas Bellinger } 1922c66ac9dbSNicholas Bellinger 1923c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 1924c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 19256708bb27SAndy Grover if (lu_gp) { 1926c66ac9dbSNicholas Bellinger /* 1927c66ac9dbSNicholas Bellinger * Clearing an existing lu_gp association, and replacing 1928c66ac9dbSNicholas Bellinger * with NULL 1929c66ac9dbSNicholas Bellinger */ 19306708bb27SAndy Grover if (!lu_gp_new) { 19316708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing %s/%s" 1932c66ac9dbSNicholas Bellinger " from ALUA LU Group: core/alua/lu_gps/%s, ID:" 1933c66ac9dbSNicholas Bellinger " %hu\n", 1934c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 19350fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 1936c66ac9dbSNicholas Bellinger config_item_name(&lu_gp->lu_gp_group.cg_item), 1937c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 1938c66ac9dbSNicholas Bellinger 1939c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 1940c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1941c66ac9dbSNicholas Bellinger 1942c66ac9dbSNicholas Bellinger return count; 1943c66ac9dbSNicholas Bellinger } 1944c66ac9dbSNicholas Bellinger /* 1945c66ac9dbSNicholas Bellinger * Removing existing association of lu_gp_mem with lu_gp 1946c66ac9dbSNicholas Bellinger */ 1947c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 1948c66ac9dbSNicholas Bellinger move = 1; 1949c66ac9dbSNicholas Bellinger } 1950c66ac9dbSNicholas Bellinger /* 1951c66ac9dbSNicholas Bellinger * Associate lu_gp_mem with lu_gp_new. 1952c66ac9dbSNicholas Bellinger */ 1953c66ac9dbSNicholas Bellinger __core_alua_attach_lu_gp_mem(lu_gp_mem, lu_gp_new); 1954c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1955c66ac9dbSNicholas Bellinger 19566708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: %s %s/%s to ALUA LU Group:" 1957c66ac9dbSNicholas Bellinger " core/alua/lu_gps/%s, ID: %hu\n", 1958c66ac9dbSNicholas Bellinger (move) ? "Moving" : "Adding", 1959c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 19600fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item), 1961c66ac9dbSNicholas Bellinger config_item_name(&lu_gp_new->lu_gp_group.cg_item), 1962c66ac9dbSNicholas Bellinger lu_gp_new->lu_gp_id); 1963c66ac9dbSNicholas Bellinger 1964c66ac9dbSNicholas Bellinger core_alua_put_lu_gp_from_name(lu_gp_new); 1965c66ac9dbSNicholas Bellinger return count; 1966c66ac9dbSNicholas Bellinger } 1967c66ac9dbSNicholas Bellinger 19682eafd729SChristoph Hellwig static ssize_t target_dev_lba_map_show(struct config_item *item, char *page) 1969229d4f11SHannes Reinecke { 19702eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 1971229d4f11SHannes Reinecke struct t10_alua_lba_map *map; 1972229d4f11SHannes Reinecke struct t10_alua_lba_map_member *mem; 1973229d4f11SHannes Reinecke char *b = page; 1974229d4f11SHannes Reinecke int bl = 0; 1975229d4f11SHannes Reinecke char state; 1976229d4f11SHannes Reinecke 1977229d4f11SHannes Reinecke spin_lock(&dev->t10_alua.lba_map_lock); 1978229d4f11SHannes Reinecke if (!list_empty(&dev->t10_alua.lba_map_list)) 1979229d4f11SHannes Reinecke bl += sprintf(b + bl, "%u %u\n", 1980229d4f11SHannes Reinecke dev->t10_alua.lba_map_segment_size, 1981229d4f11SHannes Reinecke dev->t10_alua.lba_map_segment_multiplier); 1982229d4f11SHannes Reinecke list_for_each_entry(map, &dev->t10_alua.lba_map_list, lba_map_list) { 1983229d4f11SHannes Reinecke bl += sprintf(b + bl, "%llu %llu", 1984229d4f11SHannes Reinecke map->lba_map_first_lba, map->lba_map_last_lba); 1985229d4f11SHannes Reinecke list_for_each_entry(mem, &map->lba_map_mem_list, 1986229d4f11SHannes Reinecke lba_map_mem_list) { 1987229d4f11SHannes Reinecke switch (mem->lba_map_mem_alua_state) { 1988229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED: 1989229d4f11SHannes Reinecke state = 'O'; 1990229d4f11SHannes Reinecke break; 1991229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED: 1992229d4f11SHannes Reinecke state = 'A'; 1993229d4f11SHannes Reinecke break; 1994229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_STANDBY: 1995229d4f11SHannes Reinecke state = 'S'; 1996229d4f11SHannes Reinecke break; 1997229d4f11SHannes Reinecke case ALUA_ACCESS_STATE_UNAVAILABLE: 1998229d4f11SHannes Reinecke state = 'U'; 1999229d4f11SHannes Reinecke break; 2000229d4f11SHannes Reinecke default: 2001229d4f11SHannes Reinecke state = '.'; 2002229d4f11SHannes Reinecke break; 2003229d4f11SHannes Reinecke } 2004229d4f11SHannes Reinecke bl += sprintf(b + bl, " %d:%c", 2005229d4f11SHannes Reinecke mem->lba_map_mem_alua_pg_id, state); 2006229d4f11SHannes Reinecke } 2007229d4f11SHannes Reinecke bl += sprintf(b + bl, "\n"); 2008229d4f11SHannes Reinecke } 2009229d4f11SHannes Reinecke spin_unlock(&dev->t10_alua.lba_map_lock); 2010229d4f11SHannes Reinecke return bl; 2011229d4f11SHannes Reinecke } 2012229d4f11SHannes Reinecke 20132eafd729SChristoph Hellwig static ssize_t target_dev_lba_map_store(struct config_item *item, 20142eafd729SChristoph Hellwig const char *page, size_t count) 2015229d4f11SHannes Reinecke { 20162eafd729SChristoph Hellwig struct se_device *dev = to_device(item); 2017229d4f11SHannes Reinecke struct t10_alua_lba_map *lba_map = NULL; 2018229d4f11SHannes Reinecke struct list_head lba_list; 2019229d4f11SHannes Reinecke char *map_entries, *ptr; 2020229d4f11SHannes Reinecke char state; 2021229d4f11SHannes Reinecke int pg_num = -1, pg; 2022229d4f11SHannes Reinecke int ret = 0, num = 0, pg_id, alua_state; 2023229d4f11SHannes Reinecke unsigned long start_lba = -1, end_lba = -1; 2024229d4f11SHannes Reinecke unsigned long segment_size = -1, segment_mult = -1; 2025229d4f11SHannes Reinecke 2026229d4f11SHannes Reinecke map_entries = kstrdup(page, GFP_KERNEL); 2027229d4f11SHannes Reinecke if (!map_entries) 2028229d4f11SHannes Reinecke return -ENOMEM; 2029229d4f11SHannes Reinecke 2030229d4f11SHannes Reinecke INIT_LIST_HEAD(&lba_list); 2031229d4f11SHannes Reinecke while ((ptr = strsep(&map_entries, "\n")) != NULL) { 2032229d4f11SHannes Reinecke if (!*ptr) 2033229d4f11SHannes Reinecke continue; 2034229d4f11SHannes Reinecke 2035229d4f11SHannes Reinecke if (num == 0) { 2036229d4f11SHannes Reinecke if (sscanf(ptr, "%lu %lu\n", 2037229d4f11SHannes Reinecke &segment_size, &segment_mult) != 2) { 2038229d4f11SHannes Reinecke pr_err("Invalid line %d\n", num); 2039229d4f11SHannes Reinecke ret = -EINVAL; 2040229d4f11SHannes Reinecke break; 2041229d4f11SHannes Reinecke } 2042229d4f11SHannes Reinecke num++; 2043229d4f11SHannes Reinecke continue; 2044229d4f11SHannes Reinecke } 2045229d4f11SHannes Reinecke if (sscanf(ptr, "%lu %lu", &start_lba, &end_lba) != 2) { 2046229d4f11SHannes Reinecke pr_err("Invalid line %d\n", num); 2047229d4f11SHannes Reinecke ret = -EINVAL; 2048229d4f11SHannes Reinecke break; 2049229d4f11SHannes Reinecke } 2050229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2051229d4f11SHannes Reinecke if (!ptr) { 2052229d4f11SHannes Reinecke pr_err("Invalid line %d, missing end lba\n", num); 2053229d4f11SHannes Reinecke ret = -EINVAL; 2054229d4f11SHannes Reinecke break; 2055229d4f11SHannes Reinecke } 2056229d4f11SHannes Reinecke ptr++; 2057229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2058229d4f11SHannes Reinecke if (!ptr) { 2059229d4f11SHannes Reinecke pr_err("Invalid line %d, missing state definitions\n", 2060229d4f11SHannes Reinecke num); 2061229d4f11SHannes Reinecke ret = -EINVAL; 2062229d4f11SHannes Reinecke break; 2063229d4f11SHannes Reinecke } 2064229d4f11SHannes Reinecke ptr++; 2065229d4f11SHannes Reinecke lba_map = core_alua_allocate_lba_map(&lba_list, 2066229d4f11SHannes Reinecke start_lba, end_lba); 2067229d4f11SHannes Reinecke if (IS_ERR(lba_map)) { 2068229d4f11SHannes Reinecke ret = PTR_ERR(lba_map); 2069229d4f11SHannes Reinecke break; 2070229d4f11SHannes Reinecke } 2071229d4f11SHannes Reinecke pg = 0; 2072229d4f11SHannes Reinecke while (sscanf(ptr, "%d:%c", &pg_id, &state) == 2) { 2073229d4f11SHannes Reinecke switch (state) { 2074229d4f11SHannes Reinecke case 'O': 2075229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED; 2076229d4f11SHannes Reinecke break; 2077229d4f11SHannes Reinecke case 'A': 2078229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED; 2079229d4f11SHannes Reinecke break; 2080229d4f11SHannes Reinecke case 'S': 2081229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_STANDBY; 2082229d4f11SHannes Reinecke break; 2083229d4f11SHannes Reinecke case 'U': 2084229d4f11SHannes Reinecke alua_state = ALUA_ACCESS_STATE_UNAVAILABLE; 2085229d4f11SHannes Reinecke break; 2086229d4f11SHannes Reinecke default: 2087229d4f11SHannes Reinecke pr_err("Invalid ALUA state '%c'\n", state); 2088229d4f11SHannes Reinecke ret = -EINVAL; 2089229d4f11SHannes Reinecke goto out; 2090229d4f11SHannes Reinecke } 2091229d4f11SHannes Reinecke 2092229d4f11SHannes Reinecke ret = core_alua_allocate_lba_map_mem(lba_map, 2093229d4f11SHannes Reinecke pg_id, alua_state); 2094229d4f11SHannes Reinecke if (ret) { 2095229d4f11SHannes Reinecke pr_err("Invalid target descriptor %d:%c " 2096229d4f11SHannes Reinecke "at line %d\n", 2097229d4f11SHannes Reinecke pg_id, state, num); 2098229d4f11SHannes Reinecke break; 2099229d4f11SHannes Reinecke } 2100229d4f11SHannes Reinecke pg++; 2101229d4f11SHannes Reinecke ptr = strchr(ptr, ' '); 2102229d4f11SHannes Reinecke if (ptr) 2103229d4f11SHannes Reinecke ptr++; 2104229d4f11SHannes Reinecke else 2105229d4f11SHannes Reinecke break; 2106229d4f11SHannes Reinecke } 2107229d4f11SHannes Reinecke if (pg_num == -1) 2108229d4f11SHannes Reinecke pg_num = pg; 2109229d4f11SHannes Reinecke else if (pg != pg_num) { 2110229d4f11SHannes Reinecke pr_err("Only %d from %d port groups definitions " 2111229d4f11SHannes Reinecke "at line %d\n", pg, pg_num, num); 2112229d4f11SHannes Reinecke ret = -EINVAL; 2113229d4f11SHannes Reinecke break; 2114229d4f11SHannes Reinecke } 2115229d4f11SHannes Reinecke num++; 2116229d4f11SHannes Reinecke } 2117229d4f11SHannes Reinecke out: 2118229d4f11SHannes Reinecke if (ret) { 2119229d4f11SHannes Reinecke core_alua_free_lba_map(&lba_list); 2120229d4f11SHannes Reinecke count = ret; 2121229d4f11SHannes Reinecke } else 2122229d4f11SHannes Reinecke core_alua_set_lba_map(dev, &lba_list, 2123229d4f11SHannes Reinecke segment_size, segment_mult); 2124229d4f11SHannes Reinecke kfree(map_entries); 2125229d4f11SHannes Reinecke return count; 2126229d4f11SHannes Reinecke } 2127229d4f11SHannes Reinecke 21282eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_dev_, info); 21292eafd729SChristoph Hellwig CONFIGFS_ATTR_WO(target_dev_, control); 21302eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, alias); 21312eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, udev_path); 21322eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, enable); 21332eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, alua_lu_gp); 21342eafd729SChristoph Hellwig CONFIGFS_ATTR(target_dev_, lba_map); 2135229d4f11SHannes Reinecke 213673112edcSNicholas Bellinger static struct configfs_attribute *target_core_dev_attrs[] = { 21372eafd729SChristoph Hellwig &target_dev_attr_info, 21382eafd729SChristoph Hellwig &target_dev_attr_control, 21392eafd729SChristoph Hellwig &target_dev_attr_alias, 21402eafd729SChristoph Hellwig &target_dev_attr_udev_path, 21412eafd729SChristoph Hellwig &target_dev_attr_enable, 21422eafd729SChristoph Hellwig &target_dev_attr_alua_lu_gp, 21432eafd729SChristoph Hellwig &target_dev_attr_lba_map, 2144c66ac9dbSNicholas Bellinger NULL, 2145c66ac9dbSNicholas Bellinger }; 2146c66ac9dbSNicholas Bellinger 2147c66ac9dbSNicholas Bellinger static void target_core_dev_release(struct config_item *item) 2148c66ac9dbSNicholas Bellinger { 21490fd97ccfSChristoph Hellwig struct config_group *dev_cg = to_config_group(item); 21500fd97ccfSChristoph Hellwig struct se_device *dev = 21510fd97ccfSChristoph Hellwig container_of(dev_cg, struct se_device, dev_group); 2152c66ac9dbSNicholas Bellinger 2153c66ac9dbSNicholas Bellinger kfree(dev_cg->default_groups); 21540fd97ccfSChristoph Hellwig target_free_device(dev); 2155c66ac9dbSNicholas Bellinger } 2156c66ac9dbSNicholas Bellinger 2157c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_dev_item_ops = { 2158c66ac9dbSNicholas Bellinger .release = target_core_dev_release, 2159c66ac9dbSNicholas Bellinger }; 2160c66ac9dbSNicholas Bellinger 216173112edcSNicholas Bellinger TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs); 2162c66ac9dbSNicholas Bellinger 216373112edcSNicholas Bellinger /* End functions for struct config_item_type tb_dev_cit */ 2164c66ac9dbSNicholas Bellinger 2165c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gp_cit */ 2166c66ac9dbSNicholas Bellinger 21672eafd729SChristoph Hellwig static inline struct t10_alua_lu_gp *to_lu_gp(struct config_item *item) 2168c66ac9dbSNicholas Bellinger { 21692eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_alua_lu_gp, 21702eafd729SChristoph Hellwig lu_gp_group); 21712eafd729SChristoph Hellwig } 21722eafd729SChristoph Hellwig 21732eafd729SChristoph Hellwig static ssize_t target_lu_gp_lu_gp_id_show(struct config_item *item, char *page) 21742eafd729SChristoph Hellwig { 21752eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 21762eafd729SChristoph Hellwig 21776708bb27SAndy Grover if (!lu_gp->lu_gp_valid_id) 2178c66ac9dbSNicholas Bellinger return 0; 2179c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", lu_gp->lu_gp_id); 2180c66ac9dbSNicholas Bellinger } 2181c66ac9dbSNicholas Bellinger 21822eafd729SChristoph Hellwig static ssize_t target_lu_gp_lu_gp_id_store(struct config_item *item, 21832eafd729SChristoph Hellwig const char *page, size_t count) 2184c66ac9dbSNicholas Bellinger { 21852eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 2186c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = &lu_gp->lu_gp_group; 2187c66ac9dbSNicholas Bellinger unsigned long lu_gp_id; 2188c66ac9dbSNicholas Bellinger int ret; 2189c66ac9dbSNicholas Bellinger 219057103d7fSJingoo Han ret = kstrtoul(page, 0, &lu_gp_id); 2191c66ac9dbSNicholas Bellinger if (ret < 0) { 219257103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 2193c66ac9dbSNicholas Bellinger " lu_gp_id\n", ret); 219457103d7fSJingoo Han return ret; 2195c66ac9dbSNicholas Bellinger } 2196c66ac9dbSNicholas Bellinger if (lu_gp_id > 0x0000ffff) { 21976708bb27SAndy Grover pr_err("ALUA lu_gp_id: %lu exceeds maximum:" 2198c66ac9dbSNicholas Bellinger " 0x0000ffff\n", lu_gp_id); 2199c66ac9dbSNicholas Bellinger return -EINVAL; 2200c66ac9dbSNicholas Bellinger } 2201c66ac9dbSNicholas Bellinger 2202c66ac9dbSNicholas Bellinger ret = core_alua_set_lu_gp_id(lu_gp, (u16)lu_gp_id); 2203c66ac9dbSNicholas Bellinger if (ret < 0) 2204c66ac9dbSNicholas Bellinger return -EINVAL; 2205c66ac9dbSNicholas Bellinger 22066708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set ALUA Logical Unit" 2207c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s to ID: %hu\n", 2208c66ac9dbSNicholas Bellinger config_item_name(&alua_lu_gp_cg->cg_item), 2209c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 2210c66ac9dbSNicholas Bellinger 2211c66ac9dbSNicholas Bellinger return count; 2212c66ac9dbSNicholas Bellinger } 2213c66ac9dbSNicholas Bellinger 22142eafd729SChristoph Hellwig static ssize_t target_lu_gp_members_show(struct config_item *item, char *page) 2215c66ac9dbSNicholas Bellinger { 22162eafd729SChristoph Hellwig struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); 2217c66ac9dbSNicholas Bellinger struct se_device *dev; 2218c66ac9dbSNicholas Bellinger struct se_hba *hba; 2219c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 2220c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2221c66ac9dbSNicholas Bellinger unsigned char buf[LU_GROUP_NAME_BUF]; 2222c66ac9dbSNicholas Bellinger 2223c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 2224c66ac9dbSNicholas Bellinger 2225c66ac9dbSNicholas Bellinger spin_lock(&lu_gp->lu_gp_lock); 2226c66ac9dbSNicholas Bellinger list_for_each_entry(lu_gp_mem, &lu_gp->lu_gp_mem_list, lu_gp_mem_list) { 2227c66ac9dbSNicholas Bellinger dev = lu_gp_mem->lu_gp_mem_dev; 22280fd97ccfSChristoph Hellwig hba = dev->se_hba; 2229c66ac9dbSNicholas Bellinger 2230c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, LU_GROUP_NAME_BUF, "%s/%s\n", 2231c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 22320fd97ccfSChristoph Hellwig config_item_name(&dev->dev_group.cg_item)); 2233c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2234c66ac9dbSNicholas Bellinger 2235c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 22366708bb27SAndy Grover pr_warn("Ran out of lu_gp_show_attr" 2237c66ac9dbSNicholas Bellinger "_members buffer\n"); 2238c66ac9dbSNicholas Bellinger break; 2239c66ac9dbSNicholas Bellinger } 2240c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2241c66ac9dbSNicholas Bellinger len += cur_len; 2242c66ac9dbSNicholas Bellinger } 2243c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp->lu_gp_lock); 2244c66ac9dbSNicholas Bellinger 2245c66ac9dbSNicholas Bellinger return len; 2246c66ac9dbSNicholas Bellinger } 2247c66ac9dbSNicholas Bellinger 22482eafd729SChristoph Hellwig CONFIGFS_ATTR(target_lu_gp_, lu_gp_id); 22492eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_lu_gp_, members); 2250c66ac9dbSNicholas Bellinger 2251c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_lu_gp_attrs[] = { 22522eafd729SChristoph Hellwig &target_lu_gp_attr_lu_gp_id, 22532eafd729SChristoph Hellwig &target_lu_gp_attr_members, 2254c66ac9dbSNicholas Bellinger NULL, 2255c66ac9dbSNicholas Bellinger }; 2256c66ac9dbSNicholas Bellinger 22571f6fe7cbSNicholas Bellinger static void target_core_alua_lu_gp_release(struct config_item *item) 22581f6fe7cbSNicholas Bellinger { 22591f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 22601f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 22611f6fe7cbSNicholas Bellinger 22621f6fe7cbSNicholas Bellinger core_alua_free_lu_gp(lu_gp); 22631f6fe7cbSNicholas Bellinger } 22641f6fe7cbSNicholas Bellinger 2265c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_lu_gp_ops = { 22661f6fe7cbSNicholas Bellinger .release = target_core_alua_lu_gp_release, 2267c66ac9dbSNicholas Bellinger }; 2268c66ac9dbSNicholas Bellinger 2269c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gp_cit = { 2270c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_lu_gp_ops, 2271c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_lu_gp_attrs, 2272c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2273c66ac9dbSNicholas Bellinger }; 2274c66ac9dbSNicholas Bellinger 2275c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gp_cit */ 2276c66ac9dbSNicholas Bellinger 2277c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gps_cit */ 2278c66ac9dbSNicholas Bellinger 2279c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_lu_gp( 2280c66ac9dbSNicholas Bellinger struct config_group *group, 2281c66ac9dbSNicholas Bellinger const char *name) 2282c66ac9dbSNicholas Bellinger { 2283c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 2284c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = NULL; 2285c66ac9dbSNicholas Bellinger struct config_item *alua_lu_gp_ci = NULL; 2286c66ac9dbSNicholas Bellinger 2287c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp(name, 0); 2288c66ac9dbSNicholas Bellinger if (IS_ERR(lu_gp)) 2289c66ac9dbSNicholas Bellinger return NULL; 2290c66ac9dbSNicholas Bellinger 2291c66ac9dbSNicholas Bellinger alua_lu_gp_cg = &lu_gp->lu_gp_group; 2292c66ac9dbSNicholas Bellinger alua_lu_gp_ci = &alua_lu_gp_cg->cg_item; 2293c66ac9dbSNicholas Bellinger 2294c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_lu_gp_cg, name, 2295c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 2296c66ac9dbSNicholas Bellinger 22976708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Allocated ALUA Logical Unit" 2298c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s\n", 2299c66ac9dbSNicholas Bellinger config_item_name(alua_lu_gp_ci)); 2300c66ac9dbSNicholas Bellinger 2301c66ac9dbSNicholas Bellinger return alua_lu_gp_cg; 2302c66ac9dbSNicholas Bellinger 2303c66ac9dbSNicholas Bellinger } 2304c66ac9dbSNicholas Bellinger 2305c66ac9dbSNicholas Bellinger static void target_core_alua_drop_lu_gp( 2306c66ac9dbSNicholas Bellinger struct config_group *group, 2307c66ac9dbSNicholas Bellinger struct config_item *item) 2308c66ac9dbSNicholas Bellinger { 2309c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 2310c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 2311c66ac9dbSNicholas Bellinger 23126708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing ALUA Logical Unit" 2313c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s, ID: %hu\n", 2314c66ac9dbSNicholas Bellinger config_item_name(item), lu_gp->lu_gp_id); 23151f6fe7cbSNicholas Bellinger /* 23161f6fe7cbSNicholas Bellinger * core_alua_free_lu_gp() is called from target_core_alua_lu_gp_ops->release() 23171f6fe7cbSNicholas Bellinger * -> target_core_alua_lu_gp_release() 23181f6fe7cbSNicholas Bellinger */ 2319c66ac9dbSNicholas Bellinger config_item_put(item); 2320c66ac9dbSNicholas Bellinger } 2321c66ac9dbSNicholas Bellinger 2322c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_lu_gps_group_ops = { 2323c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_lu_gp, 2324c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_lu_gp, 2325c66ac9dbSNicholas Bellinger }; 2326c66ac9dbSNicholas Bellinger 2327c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gps_cit = { 2328c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2329c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_alua_lu_gps_group_ops, 2330c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2331c66ac9dbSNicholas Bellinger }; 2332c66ac9dbSNicholas Bellinger 2333c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gps_cit */ 2334c66ac9dbSNicholas Bellinger 2335c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2336c66ac9dbSNicholas Bellinger 23372eafd729SChristoph Hellwig static inline struct t10_alua_tg_pt_gp *to_tg_pt_gp(struct config_item *item) 23382eafd729SChristoph Hellwig { 23392eafd729SChristoph Hellwig return container_of(to_config_group(item), struct t10_alua_tg_pt_gp, 23402eafd729SChristoph Hellwig tg_pt_gp_group); 23412eafd729SChristoph Hellwig } 2342c66ac9dbSNicholas Bellinger 23432eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item, 2344c66ac9dbSNicholas Bellinger char *page) 2345c66ac9dbSNicholas Bellinger { 2346c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", 23472eafd729SChristoph Hellwig atomic_read(&to_tg_pt_gp(item)->tg_pt_gp_alua_access_state)); 2348c66ac9dbSNicholas Bellinger } 2349c66ac9dbSNicholas Bellinger 23502eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item, 23512eafd729SChristoph Hellwig const char *page, size_t count) 2352c66ac9dbSNicholas Bellinger { 23532eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 23540fd97ccfSChristoph Hellwig struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; 2355c66ac9dbSNicholas Bellinger unsigned long tmp; 2356c66ac9dbSNicholas Bellinger int new_state, ret; 2357c66ac9dbSNicholas Bellinger 23586708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) { 2359125d0119SHannes Reinecke pr_err("Unable to do implicit ALUA on non valid" 2360c66ac9dbSNicholas Bellinger " tg_pt_gp ID: %hu\n", tg_pt_gp->tg_pt_gp_valid_id); 2361c66ac9dbSNicholas Bellinger return -EINVAL; 2362c66ac9dbSNicholas Bellinger } 2363f1453773SNicholas Bellinger if (!(dev->dev_flags & DF_CONFIGURED)) { 2364f1453773SNicholas Bellinger pr_err("Unable to set alua_access_state while device is" 2365f1453773SNicholas Bellinger " not configured\n"); 2366f1453773SNicholas Bellinger return -ENODEV; 2367f1453773SNicholas Bellinger } 2368c66ac9dbSNicholas Bellinger 236957103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2370c66ac9dbSNicholas Bellinger if (ret < 0) { 23716708bb27SAndy Grover pr_err("Unable to extract new ALUA access state from" 2372c66ac9dbSNicholas Bellinger " %s\n", page); 237357103d7fSJingoo Han return ret; 2374c66ac9dbSNicholas Bellinger } 2375c66ac9dbSNicholas Bellinger new_state = (int)tmp; 2376c66ac9dbSNicholas Bellinger 2377125d0119SHannes Reinecke if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)) { 2378125d0119SHannes Reinecke pr_err("Unable to process implicit configfs ALUA" 2379125d0119SHannes Reinecke " transition while TPGS_IMPLICIT_ALUA is disabled\n"); 2380c66ac9dbSNicholas Bellinger return -EINVAL; 2381c66ac9dbSNicholas Bellinger } 2382c66094bfSHannes Reinecke if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA && 2383c66094bfSHannes Reinecke new_state == ALUA_ACCESS_STATE_LBA_DEPENDENT) { 2384c66094bfSHannes Reinecke /* LBA DEPENDENT is only allowed with implicit ALUA */ 2385c66094bfSHannes Reinecke pr_err("Unable to process implicit configfs ALUA transition" 2386c66094bfSHannes Reinecke " while explicit ALUA management is enabled\n"); 2387c66094bfSHannes Reinecke return -EINVAL; 2388c66094bfSHannes Reinecke } 2389c66ac9dbSNicholas Bellinger 23900fd97ccfSChristoph Hellwig ret = core_alua_do_port_transition(tg_pt_gp, dev, 2391c66ac9dbSNicholas Bellinger NULL, NULL, new_state, 0); 2392c66ac9dbSNicholas Bellinger return (!ret) ? count : -EINVAL; 2393c66ac9dbSNicholas Bellinger } 2394c66ac9dbSNicholas Bellinger 23952eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_status_show(struct config_item *item, 2396c66ac9dbSNicholas Bellinger char *page) 2397c66ac9dbSNicholas Bellinger { 23982eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2399c66ac9dbSNicholas Bellinger return sprintf(page, "%s\n", 2400c66ac9dbSNicholas Bellinger core_alua_dump_status(tg_pt_gp->tg_pt_gp_alua_access_status)); 2401c66ac9dbSNicholas Bellinger } 2402c66ac9dbSNicholas Bellinger 24032eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_status_store( 24042eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 2405c66ac9dbSNicholas Bellinger { 24062eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2407c66ac9dbSNicholas Bellinger unsigned long tmp; 2408c66ac9dbSNicholas Bellinger int new_status, ret; 2409c66ac9dbSNicholas Bellinger 24106708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) { 24116708bb27SAndy Grover pr_err("Unable to do set ALUA access status on non" 2412c66ac9dbSNicholas Bellinger " valid tg_pt_gp ID: %hu\n", 2413c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_valid_id); 2414c66ac9dbSNicholas Bellinger return -EINVAL; 2415c66ac9dbSNicholas Bellinger } 2416c66ac9dbSNicholas Bellinger 241757103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2418c66ac9dbSNicholas Bellinger if (ret < 0) { 24196708bb27SAndy Grover pr_err("Unable to extract new ALUA access status" 2420c66ac9dbSNicholas Bellinger " from %s\n", page); 242157103d7fSJingoo Han return ret; 2422c66ac9dbSNicholas Bellinger } 2423c66ac9dbSNicholas Bellinger new_status = (int)tmp; 2424c66ac9dbSNicholas Bellinger 2425c66ac9dbSNicholas Bellinger if ((new_status != ALUA_STATUS_NONE) && 2426125d0119SHannes Reinecke (new_status != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) && 2427125d0119SHannes Reinecke (new_status != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) { 24286708bb27SAndy Grover pr_err("Illegal ALUA access status: 0x%02x\n", 2429c66ac9dbSNicholas Bellinger new_status); 2430c66ac9dbSNicholas Bellinger return -EINVAL; 2431c66ac9dbSNicholas Bellinger } 2432c66ac9dbSNicholas Bellinger 2433c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_alua_access_status = new_status; 2434c66ac9dbSNicholas Bellinger return count; 2435c66ac9dbSNicholas Bellinger } 2436c66ac9dbSNicholas Bellinger 24372eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_type_show(struct config_item *item, 2438c66ac9dbSNicholas Bellinger char *page) 2439c66ac9dbSNicholas Bellinger { 24402eafd729SChristoph Hellwig return core_alua_show_access_type(to_tg_pt_gp(item), page); 2441c66ac9dbSNicholas Bellinger } 2442c66ac9dbSNicholas Bellinger 24432eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_access_type_store(struct config_item *item, 24442eafd729SChristoph Hellwig const char *page, size_t count) 2445c66ac9dbSNicholas Bellinger { 24462eafd729SChristoph Hellwig return core_alua_store_access_type(to_tg_pt_gp(item), page, count); 2447c66ac9dbSNicholas Bellinger } 2448c66ac9dbSNicholas Bellinger 24492eafd729SChristoph Hellwig #define ALUA_SUPPORTED_STATE_ATTR(_name, _bit) \ 24502eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_support_##_name##_show( \ 24512eafd729SChristoph Hellwig struct config_item *item, char *p) \ 2452b0a382c5SHannes Reinecke { \ 24532eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ 24542eafd729SChristoph Hellwig return sprintf(p, "%d\n", \ 24552eafd729SChristoph Hellwig !!(t->tg_pt_gp_alua_supported_states & _bit)); \ 24562eafd729SChristoph Hellwig } \ 24572eafd729SChristoph Hellwig \ 24582eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_support_##_name##_store( \ 24592eafd729SChristoph Hellwig struct config_item *item, const char *p, size_t c) \ 2460b0a382c5SHannes Reinecke { \ 24612eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ 2462b0a382c5SHannes Reinecke unsigned long tmp; \ 2463b0a382c5SHannes Reinecke int ret; \ 2464b0a382c5SHannes Reinecke \ 2465b0a382c5SHannes Reinecke if (!t->tg_pt_gp_valid_id) { \ 2466b0a382c5SHannes Reinecke pr_err("Unable to do set ##_name ALUA state on non" \ 2467b0a382c5SHannes Reinecke " valid tg_pt_gp ID: %hu\n", \ 2468b0a382c5SHannes Reinecke t->tg_pt_gp_valid_id); \ 2469b0a382c5SHannes Reinecke return -EINVAL; \ 2470b0a382c5SHannes Reinecke } \ 2471b0a382c5SHannes Reinecke \ 2472b0a382c5SHannes Reinecke ret = kstrtoul(p, 0, &tmp); \ 2473b0a382c5SHannes Reinecke if (ret < 0) { \ 2474b0a382c5SHannes Reinecke pr_err("Invalid value '%s', must be '0' or '1'\n", p); \ 2475b0a382c5SHannes Reinecke return -EINVAL; \ 2476b0a382c5SHannes Reinecke } \ 2477b0a382c5SHannes Reinecke if (tmp > 1) { \ 2478b0a382c5SHannes Reinecke pr_err("Invalid value '%ld', must be '0' or '1'\n", tmp); \ 2479b0a382c5SHannes Reinecke return -EINVAL; \ 2480b0a382c5SHannes Reinecke } \ 24811f0b030cSSebastian Herbszt if (tmp) \ 24822eafd729SChristoph Hellwig t->tg_pt_gp_alua_supported_states |= _bit; \ 2483b0a382c5SHannes Reinecke else \ 24842eafd729SChristoph Hellwig t->tg_pt_gp_alua_supported_states &= ~_bit; \ 2485b0a382c5SHannes Reinecke \ 2486b0a382c5SHannes Reinecke return c; \ 24876be526c4SHannes Reinecke } 24886be526c4SHannes Reinecke 24892eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(transitioning, ALUA_T_SUP); 24902eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(offline, ALUA_O_SUP); 24912eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(lba_dependent, ALUA_LBD_SUP); 24922eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(unavailable, ALUA_U_SUP); 24932eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(standby, ALUA_S_SUP); 24942eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(active_optimized, ALUA_AO_SUP); 24952eafd729SChristoph Hellwig ALUA_SUPPORTED_STATE_ATTR(active_nonoptimized, ALUA_AN_SUP); 24966be526c4SHannes Reinecke 24972eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_write_metadata_show( 24982eafd729SChristoph Hellwig struct config_item *item, char *page) 2499c66ac9dbSNicholas Bellinger { 25002eafd729SChristoph Hellwig return sprintf(page, "%d\n", 25012eafd729SChristoph Hellwig to_tg_pt_gp(item)->tg_pt_gp_write_metadata); 2502c66ac9dbSNicholas Bellinger } 2503c66ac9dbSNicholas Bellinger 25042eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_alua_write_metadata_store( 25052eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 2506c66ac9dbSNicholas Bellinger { 25072eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2508c66ac9dbSNicholas Bellinger unsigned long tmp; 2509c66ac9dbSNicholas Bellinger int ret; 2510c66ac9dbSNicholas Bellinger 251157103d7fSJingoo Han ret = kstrtoul(page, 0, &tmp); 2512c66ac9dbSNicholas Bellinger if (ret < 0) { 25136708bb27SAndy Grover pr_err("Unable to extract alua_write_metadata\n"); 251457103d7fSJingoo Han return ret; 2515c66ac9dbSNicholas Bellinger } 2516c66ac9dbSNicholas Bellinger 2517c66ac9dbSNicholas Bellinger if ((tmp != 0) && (tmp != 1)) { 25186708bb27SAndy Grover pr_err("Illegal value for alua_write_metadata:" 2519c66ac9dbSNicholas Bellinger " %lu\n", tmp); 2520c66ac9dbSNicholas Bellinger return -EINVAL; 2521c66ac9dbSNicholas Bellinger } 2522c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_write_metadata = (int)tmp; 2523c66ac9dbSNicholas Bellinger 2524c66ac9dbSNicholas Bellinger return count; 2525c66ac9dbSNicholas Bellinger } 2526c66ac9dbSNicholas Bellinger 25272eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_nonop_delay_msecs_show(struct config_item *item, 2528c66ac9dbSNicholas Bellinger char *page) 2529c66ac9dbSNicholas Bellinger { 25302eafd729SChristoph Hellwig return core_alua_show_nonop_delay_msecs(to_tg_pt_gp(item), page); 2531c66ac9dbSNicholas Bellinger } 2532c66ac9dbSNicholas Bellinger 25332eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_nonop_delay_msecs_store(struct config_item *item, 25342eafd729SChristoph Hellwig const char *page, size_t count) 2535c66ac9dbSNicholas Bellinger { 25362eafd729SChristoph Hellwig return core_alua_store_nonop_delay_msecs(to_tg_pt_gp(item), page, 25372eafd729SChristoph Hellwig count); 2538c66ac9dbSNicholas Bellinger } 2539c66ac9dbSNicholas Bellinger 25402eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_trans_delay_msecs_show(struct config_item *item, 2541c66ac9dbSNicholas Bellinger char *page) 2542c66ac9dbSNicholas Bellinger { 25432eafd729SChristoph Hellwig return core_alua_show_trans_delay_msecs(to_tg_pt_gp(item), page); 2544c66ac9dbSNicholas Bellinger } 2545c66ac9dbSNicholas Bellinger 25462eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_trans_delay_msecs_store(struct config_item *item, 25472eafd729SChristoph Hellwig const char *page, size_t count) 2548c66ac9dbSNicholas Bellinger { 25492eafd729SChristoph Hellwig return core_alua_store_trans_delay_msecs(to_tg_pt_gp(item), page, 25502eafd729SChristoph Hellwig count); 2551c66ac9dbSNicholas Bellinger } 2552c66ac9dbSNicholas Bellinger 25532eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_implicit_trans_secs_show( 25542eafd729SChristoph Hellwig struct config_item *item, char *page) 25552eafd729SChristoph Hellwig { 25562eafd729SChristoph Hellwig return core_alua_show_implicit_trans_secs(to_tg_pt_gp(item), page); 25572eafd729SChristoph Hellwig } 2558c66ac9dbSNicholas Bellinger 25592eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_implicit_trans_secs_store( 25602eafd729SChristoph Hellwig struct config_item *item, const char *page, size_t count) 25612eafd729SChristoph Hellwig { 25622eafd729SChristoph Hellwig return core_alua_store_implicit_trans_secs(to_tg_pt_gp(item), page, 25632eafd729SChristoph Hellwig count); 25642eafd729SChristoph Hellwig } 25652eafd729SChristoph Hellwig 25662eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_preferred_show(struct config_item *item, 25675b9a4d72SNicholas Bellinger char *page) 25685b9a4d72SNicholas Bellinger { 25692eafd729SChristoph Hellwig return core_alua_show_preferred_bit(to_tg_pt_gp(item), page); 25705b9a4d72SNicholas Bellinger } 25715b9a4d72SNicholas Bellinger 25722eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_preferred_store(struct config_item *item, 25732eafd729SChristoph Hellwig const char *page, size_t count) 25745b9a4d72SNicholas Bellinger { 25752eafd729SChristoph Hellwig return core_alua_store_preferred_bit(to_tg_pt_gp(item), page, count); 25765b9a4d72SNicholas Bellinger } 25775b9a4d72SNicholas Bellinger 25782eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_tg_pt_gp_id_show(struct config_item *item, 2579c66ac9dbSNicholas Bellinger char *page) 2580c66ac9dbSNicholas Bellinger { 25812eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2582c66ac9dbSNicholas Bellinger 25836708bb27SAndy Grover if (!tg_pt_gp->tg_pt_gp_valid_id) 2584c66ac9dbSNicholas Bellinger return 0; 2585c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", tg_pt_gp->tg_pt_gp_id); 2586c66ac9dbSNicholas Bellinger } 2587c66ac9dbSNicholas Bellinger 25882eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_tg_pt_gp_id_store(struct config_item *item, 25892eafd729SChristoph Hellwig const char *page, size_t count) 2590c66ac9dbSNicholas Bellinger { 25912eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2592c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2593c66ac9dbSNicholas Bellinger unsigned long tg_pt_gp_id; 2594c66ac9dbSNicholas Bellinger int ret; 2595c66ac9dbSNicholas Bellinger 259657103d7fSJingoo Han ret = kstrtoul(page, 0, &tg_pt_gp_id); 2597c66ac9dbSNicholas Bellinger if (ret < 0) { 259857103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 2599c66ac9dbSNicholas Bellinger " tg_pt_gp_id\n", ret); 260057103d7fSJingoo Han return ret; 2601c66ac9dbSNicholas Bellinger } 2602c66ac9dbSNicholas Bellinger if (tg_pt_gp_id > 0x0000ffff) { 26036708bb27SAndy Grover pr_err("ALUA tg_pt_gp_id: %lu exceeds maximum:" 2604c66ac9dbSNicholas Bellinger " 0x0000ffff\n", tg_pt_gp_id); 2605c66ac9dbSNicholas Bellinger return -EINVAL; 2606c66ac9dbSNicholas Bellinger } 2607c66ac9dbSNicholas Bellinger 2608c66ac9dbSNicholas Bellinger ret = core_alua_set_tg_pt_gp_id(tg_pt_gp, (u16)tg_pt_gp_id); 2609c66ac9dbSNicholas Bellinger if (ret < 0) 2610c66ac9dbSNicholas Bellinger return -EINVAL; 2611c66ac9dbSNicholas Bellinger 26126708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Set ALUA Target Port Group: " 2613c66ac9dbSNicholas Bellinger "core/alua/tg_pt_gps/%s to ID: %hu\n", 2614c66ac9dbSNicholas Bellinger config_item_name(&alua_tg_pt_gp_cg->cg_item), 2615c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_id); 2616c66ac9dbSNicholas Bellinger 2617c66ac9dbSNicholas Bellinger return count; 2618c66ac9dbSNicholas Bellinger } 2619c66ac9dbSNicholas Bellinger 26202eafd729SChristoph Hellwig static ssize_t target_tg_pt_gp_members_show(struct config_item *item, 2621c66ac9dbSNicholas Bellinger char *page) 2622c66ac9dbSNicholas Bellinger { 26232eafd729SChristoph Hellwig struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); 2624c66ac9dbSNicholas Bellinger struct se_lun *lun; 2625c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2626c66ac9dbSNicholas Bellinger unsigned char buf[TG_PT_GROUP_NAME_BUF]; 2627c66ac9dbSNicholas Bellinger 2628c66ac9dbSNicholas Bellinger memset(buf, 0, TG_PT_GROUP_NAME_BUF); 2629c66ac9dbSNicholas Bellinger 2630c66ac9dbSNicholas Bellinger spin_lock(&tg_pt_gp->tg_pt_gp_lock); 2631adf653f9SChristoph Hellwig list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list, 2632adf653f9SChristoph Hellwig lun_tg_pt_gp_link) { 2633adf653f9SChristoph Hellwig struct se_portal_group *tpg = lun->lun_tpg; 2634c66ac9dbSNicholas Bellinger 2635c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu" 2636e3d6f909SAndy Grover "/%s\n", tpg->se_tpg_tfo->get_fabric_name(), 2637e3d6f909SAndy Grover tpg->se_tpg_tfo->tpg_get_wwn(tpg), 2638e3d6f909SAndy Grover tpg->se_tpg_tfo->tpg_get_tag(tpg), 2639c66ac9dbSNicholas Bellinger config_item_name(&lun->lun_group.cg_item)); 2640c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2641c66ac9dbSNicholas Bellinger 2642c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 26436708bb27SAndy Grover pr_warn("Ran out of lu_gp_show_attr" 2644c66ac9dbSNicholas Bellinger "_members buffer\n"); 2645c66ac9dbSNicholas Bellinger break; 2646c66ac9dbSNicholas Bellinger } 2647c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2648c66ac9dbSNicholas Bellinger len += cur_len; 2649c66ac9dbSNicholas Bellinger } 2650c66ac9dbSNicholas Bellinger spin_unlock(&tg_pt_gp->tg_pt_gp_lock); 2651c66ac9dbSNicholas Bellinger 2652c66ac9dbSNicholas Bellinger return len; 2653c66ac9dbSNicholas Bellinger } 2654c66ac9dbSNicholas Bellinger 26552eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_state); 26562eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_status); 26572eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_type); 26582eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_transitioning); 26592eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_offline); 26602eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_lba_dependent); 26612eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_unavailable); 26622eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_standby); 26632eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_optimized); 26642eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_nonoptimized); 26652eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, alua_write_metadata); 26662eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, nonop_delay_msecs); 26672eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, trans_delay_msecs); 26682eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, implicit_trans_secs); 26692eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, preferred); 26702eafd729SChristoph Hellwig CONFIGFS_ATTR(target_tg_pt_gp_, tg_pt_gp_id); 26712eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_tg_pt_gp_, members); 2672c66ac9dbSNicholas Bellinger 2673c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = { 26742eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_state, 26752eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_status, 26762eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_access_type, 26772eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_transitioning, 26782eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_offline, 26792eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_lba_dependent, 26802eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_unavailable, 26812eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_standby, 26822eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_active_nonoptimized, 26832eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_support_active_optimized, 26842eafd729SChristoph Hellwig &target_tg_pt_gp_attr_alua_write_metadata, 26852eafd729SChristoph Hellwig &target_tg_pt_gp_attr_nonop_delay_msecs, 26862eafd729SChristoph Hellwig &target_tg_pt_gp_attr_trans_delay_msecs, 26872eafd729SChristoph Hellwig &target_tg_pt_gp_attr_implicit_trans_secs, 26882eafd729SChristoph Hellwig &target_tg_pt_gp_attr_preferred, 26892eafd729SChristoph Hellwig &target_tg_pt_gp_attr_tg_pt_gp_id, 26902eafd729SChristoph Hellwig &target_tg_pt_gp_attr_members, 2691c66ac9dbSNicholas Bellinger NULL, 2692c66ac9dbSNicholas Bellinger }; 2693c66ac9dbSNicholas Bellinger 26941f6fe7cbSNicholas Bellinger static void target_core_alua_tg_pt_gp_release(struct config_item *item) 26951f6fe7cbSNicholas Bellinger { 26961f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 26971f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 26981f6fe7cbSNicholas Bellinger 26991f6fe7cbSNicholas Bellinger core_alua_free_tg_pt_gp(tg_pt_gp); 27001f6fe7cbSNicholas Bellinger } 27011f6fe7cbSNicholas Bellinger 2702c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = { 27031f6fe7cbSNicholas Bellinger .release = target_core_alua_tg_pt_gp_release, 2704c66ac9dbSNicholas Bellinger }; 2705c66ac9dbSNicholas Bellinger 2706c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_tg_pt_gp_cit = { 2707c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_tg_pt_gp_ops, 2708c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_tg_pt_gp_attrs, 2709c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2710c66ac9dbSNicholas Bellinger }; 2711c66ac9dbSNicholas Bellinger 2712c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2713c66ac9dbSNicholas Bellinger 271472aca57bSNicholas Bellinger /* Start functions for struct config_item_type tb_alua_tg_pt_gps_cit */ 2715c66ac9dbSNicholas Bellinger 2716c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_tg_pt_gp( 2717c66ac9dbSNicholas Bellinger struct config_group *group, 2718c66ac9dbSNicholas Bellinger const char *name) 2719c66ac9dbSNicholas Bellinger { 2720c66ac9dbSNicholas Bellinger struct t10_alua *alua = container_of(group, struct t10_alua, 2721c66ac9dbSNicholas Bellinger alua_tg_pt_gps_group); 2722c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2723c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = NULL; 2724c66ac9dbSNicholas Bellinger struct config_item *alua_tg_pt_gp_ci = NULL; 2725c66ac9dbSNicholas Bellinger 27260fd97ccfSChristoph Hellwig tg_pt_gp = core_alua_allocate_tg_pt_gp(alua->t10_dev, name, 0); 27276708bb27SAndy Grover if (!tg_pt_gp) 2728c66ac9dbSNicholas Bellinger return NULL; 2729c66ac9dbSNicholas Bellinger 2730c66ac9dbSNicholas Bellinger alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2731c66ac9dbSNicholas Bellinger alua_tg_pt_gp_ci = &alua_tg_pt_gp_cg->cg_item; 2732c66ac9dbSNicholas Bellinger 2733c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_tg_pt_gp_cg, name, 2734c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_cit); 2735c66ac9dbSNicholas Bellinger 27366708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Allocated ALUA Target Port" 2737c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s\n", 2738c66ac9dbSNicholas Bellinger config_item_name(alua_tg_pt_gp_ci)); 2739c66ac9dbSNicholas Bellinger 2740c66ac9dbSNicholas Bellinger return alua_tg_pt_gp_cg; 2741c66ac9dbSNicholas Bellinger } 2742c66ac9dbSNicholas Bellinger 2743c66ac9dbSNicholas Bellinger static void target_core_alua_drop_tg_pt_gp( 2744c66ac9dbSNicholas Bellinger struct config_group *group, 2745c66ac9dbSNicholas Bellinger struct config_item *item) 2746c66ac9dbSNicholas Bellinger { 2747c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 2748c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 2749c66ac9dbSNicholas Bellinger 27506708bb27SAndy Grover pr_debug("Target_Core_ConfigFS: Releasing ALUA Target Port" 2751c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s, ID: %hu\n", 2752c66ac9dbSNicholas Bellinger config_item_name(item), tg_pt_gp->tg_pt_gp_id); 27531f6fe7cbSNicholas Bellinger /* 27541f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from target_core_alua_tg_pt_gp_ops->release() 27551f6fe7cbSNicholas Bellinger * -> target_core_alua_tg_pt_gp_release(). 27561f6fe7cbSNicholas Bellinger */ 2757c66ac9dbSNicholas Bellinger config_item_put(item); 2758c66ac9dbSNicholas Bellinger } 2759c66ac9dbSNicholas Bellinger 2760c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_tg_pt_gps_group_ops = { 2761c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_tg_pt_gp, 2762c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_tg_pt_gp, 2763c66ac9dbSNicholas Bellinger }; 2764c66ac9dbSNicholas Bellinger 276572aca57bSNicholas Bellinger TB_CIT_SETUP(dev_alua_tg_pt_gps, NULL, &target_core_alua_tg_pt_gps_group_ops, NULL); 2766c66ac9dbSNicholas Bellinger 276772aca57bSNicholas Bellinger /* End functions for struct config_item_type tb_alua_tg_pt_gps_cit */ 2768c66ac9dbSNicholas Bellinger 2769c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_cit */ 2770c66ac9dbSNicholas Bellinger 2771c66ac9dbSNicholas Bellinger /* 2772c66ac9dbSNicholas Bellinger * target_core_alua_cit is a ConfigFS group that lives under 2773c66ac9dbSNicholas Bellinger * /sys/kernel/config/target/core/alua. There are default groups 2774c66ac9dbSNicholas Bellinger * core/alua/lu_gps and core/alua/tg_pt_gps that are attached to 2775c66ac9dbSNicholas Bellinger * target_core_alua_cit in target_core_init_configfs() below. 2776c66ac9dbSNicholas Bellinger */ 2777c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_cit = { 2778c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2779c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 2780c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2781c66ac9dbSNicholas Bellinger }; 2782c66ac9dbSNicholas Bellinger 2783c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_cit */ 2784c66ac9dbSNicholas Bellinger 2785d23ab570SNicholas Bellinger /* Start functions for struct config_item_type tb_dev_stat_cit */ 278612d23384SNicholas Bellinger 278712d23384SNicholas Bellinger static struct config_group *target_core_stat_mkdir( 278812d23384SNicholas Bellinger struct config_group *group, 278912d23384SNicholas Bellinger const char *name) 279012d23384SNicholas Bellinger { 279112d23384SNicholas Bellinger return ERR_PTR(-ENOSYS); 279212d23384SNicholas Bellinger } 279312d23384SNicholas Bellinger 279412d23384SNicholas Bellinger static void target_core_stat_rmdir( 279512d23384SNicholas Bellinger struct config_group *group, 279612d23384SNicholas Bellinger struct config_item *item) 279712d23384SNicholas Bellinger { 279812d23384SNicholas Bellinger return; 279912d23384SNicholas Bellinger } 280012d23384SNicholas Bellinger 280112d23384SNicholas Bellinger static struct configfs_group_operations target_core_stat_group_ops = { 280212d23384SNicholas Bellinger .make_group = &target_core_stat_mkdir, 280312d23384SNicholas Bellinger .drop_item = &target_core_stat_rmdir, 280412d23384SNicholas Bellinger }; 280512d23384SNicholas Bellinger 2806d23ab570SNicholas Bellinger TB_CIT_SETUP(dev_stat, NULL, &target_core_stat_group_ops, NULL); 280712d23384SNicholas Bellinger 2808d23ab570SNicholas Bellinger /* End functions for struct config_item_type tb_dev_stat_cit */ 280912d23384SNicholas Bellinger 2810c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_hba_cit */ 2811c66ac9dbSNicholas Bellinger 2812c66ac9dbSNicholas Bellinger static struct config_group *target_core_make_subdev( 2813c66ac9dbSNicholas Bellinger struct config_group *group, 2814c66ac9dbSNicholas Bellinger const char *name) 2815c66ac9dbSNicholas Bellinger { 2816c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2817c66ac9dbSNicholas Bellinger struct config_item *hba_ci = &group->cg_item; 2818c66ac9dbSNicholas Bellinger struct se_hba *hba = item_to_hba(hba_ci); 28190a06d430SChristoph Hellwig struct target_backend *tb = hba->backend; 28200fd97ccfSChristoph Hellwig struct se_device *dev; 2821c66ac9dbSNicholas Bellinger struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL; 282212d23384SNicholas Bellinger struct config_group *dev_stat_grp = NULL; 282312d23384SNicholas Bellinger int errno = -ENOMEM, ret; 2824c66ac9dbSNicholas Bellinger 282512d23384SNicholas Bellinger ret = mutex_lock_interruptible(&hba->hba_access_mutex); 282612d23384SNicholas Bellinger if (ret) 282712d23384SNicholas Bellinger return ERR_PTR(ret); 2828c66ac9dbSNicholas Bellinger 28290fd97ccfSChristoph Hellwig dev = target_alloc_device(hba, name); 28300fd97ccfSChristoph Hellwig if (!dev) 28310fd97ccfSChristoph Hellwig goto out_unlock; 2832c66ac9dbSNicholas Bellinger 28330fd97ccfSChristoph Hellwig dev_cg = &dev->dev_group; 2834c66ac9dbSNicholas Bellinger 283513f6a914SSebastian Andrzej Siewior dev_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6, 2836c66ac9dbSNicholas Bellinger GFP_KERNEL); 28376708bb27SAndy Grover if (!dev_cg->default_groups) 28380fd97ccfSChristoph Hellwig goto out_free_device; 2839c66ac9dbSNicholas Bellinger 28400a06d430SChristoph Hellwig config_group_init_type_name(dev_cg, name, &tb->tb_dev_cit); 28410fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_attrib.da_group, "attrib", 28420a06d430SChristoph Hellwig &tb->tb_dev_attrib_cit); 28430fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_pr_group, "pr", 28440a06d430SChristoph Hellwig &tb->tb_dev_pr_cit); 28450fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->t10_wwn.t10_wwn_group, "wwn", 28460a06d430SChristoph Hellwig &tb->tb_dev_wwn_cit); 28470fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->t10_alua.alua_tg_pt_gps_group, 28480a06d430SChristoph Hellwig "alua", &tb->tb_dev_alua_tg_pt_gps_cit); 28490fd97ccfSChristoph Hellwig config_group_init_type_name(&dev->dev_stat_grps.stat_group, 28500a06d430SChristoph Hellwig "statistics", &tb->tb_dev_stat_cit); 285112d23384SNicholas Bellinger 28520fd97ccfSChristoph Hellwig dev_cg->default_groups[0] = &dev->dev_attrib.da_group; 28530fd97ccfSChristoph Hellwig dev_cg->default_groups[1] = &dev->dev_pr_group; 28540fd97ccfSChristoph Hellwig dev_cg->default_groups[2] = &dev->t10_wwn.t10_wwn_group; 28550fd97ccfSChristoph Hellwig dev_cg->default_groups[3] = &dev->t10_alua.alua_tg_pt_gps_group; 28560fd97ccfSChristoph Hellwig dev_cg->default_groups[4] = &dev->dev_stat_grps.stat_group; 285712d23384SNicholas Bellinger dev_cg->default_groups[5] = NULL; 2858c66ac9dbSNicholas Bellinger /* 285912d23384SNicholas Bellinger * Add core/$HBA/$DEV/alua/default_tg_pt_gp 2860c66ac9dbSNicholas Bellinger */ 28610fd97ccfSChristoph Hellwig tg_pt_gp = core_alua_allocate_tg_pt_gp(dev, "default_tg_pt_gp", 1); 28626708bb27SAndy Grover if (!tg_pt_gp) 28630fd97ccfSChristoph Hellwig goto out_free_dev_cg_default_groups; 28640fd97ccfSChristoph Hellwig dev->t10_alua.default_tg_pt_gp = tg_pt_gp; 2865c66ac9dbSNicholas Bellinger 28660fd97ccfSChristoph Hellwig tg_pt_gp_cg = &dev->t10_alua.alua_tg_pt_gps_group; 286713f6a914SSebastian Andrzej Siewior tg_pt_gp_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 2868c66ac9dbSNicholas Bellinger GFP_KERNEL); 28696708bb27SAndy Grover if (!tg_pt_gp_cg->default_groups) { 28706708bb27SAndy Grover pr_err("Unable to allocate tg_pt_gp_cg->" 2871c66ac9dbSNicholas Bellinger "default_groups\n"); 28720fd97ccfSChristoph Hellwig goto out_free_tg_pt_gp; 2873c66ac9dbSNicholas Bellinger } 2874c66ac9dbSNicholas Bellinger 2875c66ac9dbSNicholas Bellinger config_group_init_type_name(&tg_pt_gp->tg_pt_gp_group, 2876c66ac9dbSNicholas Bellinger "default_tg_pt_gp", &target_core_alua_tg_pt_gp_cit); 2877c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[0] = &tg_pt_gp->tg_pt_gp_group; 2878c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[1] = NULL; 287912d23384SNicholas Bellinger /* 288012d23384SNicholas Bellinger * Add core/$HBA/$DEV/statistics/ default groups 288112d23384SNicholas Bellinger */ 28820fd97ccfSChristoph Hellwig dev_stat_grp = &dev->dev_stat_grps.stat_group; 288313f6a914SSebastian Andrzej Siewior dev_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 4, 288412d23384SNicholas Bellinger GFP_KERNEL); 288512d23384SNicholas Bellinger if (!dev_stat_grp->default_groups) { 28866708bb27SAndy Grover pr_err("Unable to allocate dev_stat_grp->default_groups\n"); 28870fd97ccfSChristoph Hellwig goto out_free_tg_pt_gp_cg_default_groups; 288812d23384SNicholas Bellinger } 28890fd97ccfSChristoph Hellwig target_stat_setup_dev_default_groups(dev); 2890c66ac9dbSNicholas Bellinger 2891c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 28920fd97ccfSChristoph Hellwig return dev_cg; 28930fd97ccfSChristoph Hellwig 28940fd97ccfSChristoph Hellwig out_free_tg_pt_gp_cg_default_groups: 2895c66ac9dbSNicholas Bellinger kfree(tg_pt_gp_cg->default_groups); 28960fd97ccfSChristoph Hellwig out_free_tg_pt_gp: 28970fd97ccfSChristoph Hellwig core_alua_free_tg_pt_gp(tg_pt_gp); 28980fd97ccfSChristoph Hellwig out_free_dev_cg_default_groups: 2899c66ac9dbSNicholas Bellinger kfree(dev_cg->default_groups); 29000fd97ccfSChristoph Hellwig out_free_device: 29010fd97ccfSChristoph Hellwig target_free_device(dev); 29020fd97ccfSChristoph Hellwig out_unlock: 2903c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 290412d23384SNicholas Bellinger return ERR_PTR(errno); 2905c66ac9dbSNicholas Bellinger } 2906c66ac9dbSNicholas Bellinger 2907c66ac9dbSNicholas Bellinger static void target_core_drop_subdev( 2908c66ac9dbSNicholas Bellinger struct config_group *group, 2909c66ac9dbSNicholas Bellinger struct config_item *item) 2910c66ac9dbSNicholas Bellinger { 29110fd97ccfSChristoph Hellwig struct config_group *dev_cg = to_config_group(item); 29120fd97ccfSChristoph Hellwig struct se_device *dev = 29130fd97ccfSChristoph Hellwig container_of(dev_cg, struct se_device, dev_group); 2914c66ac9dbSNicholas Bellinger struct se_hba *hba; 2915c66ac9dbSNicholas Bellinger struct config_item *df_item; 29160fd97ccfSChristoph Hellwig struct config_group *tg_pt_gp_cg, *dev_stat_grp; 29171f6fe7cbSNicholas Bellinger int i; 2918c66ac9dbSNicholas Bellinger 29190fd97ccfSChristoph Hellwig hba = item_to_hba(&dev->se_hba->hba_group.cg_item); 2920c66ac9dbSNicholas Bellinger 29211f6fe7cbSNicholas Bellinger mutex_lock(&hba->hba_access_mutex); 2922c66ac9dbSNicholas Bellinger 29230fd97ccfSChristoph Hellwig dev_stat_grp = &dev->dev_stat_grps.stat_group; 292412d23384SNicholas Bellinger for (i = 0; dev_stat_grp->default_groups[i]; i++) { 292512d23384SNicholas Bellinger df_item = &dev_stat_grp->default_groups[i]->cg_item; 292612d23384SNicholas Bellinger dev_stat_grp->default_groups[i] = NULL; 292712d23384SNicholas Bellinger config_item_put(df_item); 292812d23384SNicholas Bellinger } 292912d23384SNicholas Bellinger kfree(dev_stat_grp->default_groups); 293012d23384SNicholas Bellinger 29310fd97ccfSChristoph Hellwig tg_pt_gp_cg = &dev->t10_alua.alua_tg_pt_gps_group; 2932c66ac9dbSNicholas Bellinger for (i = 0; tg_pt_gp_cg->default_groups[i]; i++) { 2933c66ac9dbSNicholas Bellinger df_item = &tg_pt_gp_cg->default_groups[i]->cg_item; 2934c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[i] = NULL; 2935c66ac9dbSNicholas Bellinger config_item_put(df_item); 2936c66ac9dbSNicholas Bellinger } 2937c66ac9dbSNicholas Bellinger kfree(tg_pt_gp_cg->default_groups); 29381f6fe7cbSNicholas Bellinger /* 29391f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from ->default_tg_pt_gp 29401f6fe7cbSNicholas Bellinger * directly from target_core_alua_tg_pt_gp_release(). 29411f6fe7cbSNicholas Bellinger */ 29420fd97ccfSChristoph Hellwig dev->t10_alua.default_tg_pt_gp = NULL; 2943c66ac9dbSNicholas Bellinger 2944c66ac9dbSNicholas Bellinger for (i = 0; dev_cg->default_groups[i]; i++) { 2945c66ac9dbSNicholas Bellinger df_item = &dev_cg->default_groups[i]->cg_item; 2946c66ac9dbSNicholas Bellinger dev_cg->default_groups[i] = NULL; 2947c66ac9dbSNicholas Bellinger config_item_put(df_item); 2948c66ac9dbSNicholas Bellinger } 29491f6fe7cbSNicholas Bellinger /* 29500fd97ccfSChristoph Hellwig * se_dev is released from target_core_dev_item_ops->release() 29511f6fe7cbSNicholas Bellinger */ 2952c66ac9dbSNicholas Bellinger config_item_put(item); 2953c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 2954c66ac9dbSNicholas Bellinger } 2955c66ac9dbSNicholas Bellinger 2956c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_hba_group_ops = { 2957c66ac9dbSNicholas Bellinger .make_group = target_core_make_subdev, 2958c66ac9dbSNicholas Bellinger .drop_item = target_core_drop_subdev, 2959c66ac9dbSNicholas Bellinger }; 2960c66ac9dbSNicholas Bellinger 2961c66ac9dbSNicholas Bellinger 29622eafd729SChristoph Hellwig static inline struct se_hba *to_hba(struct config_item *item) 2963c66ac9dbSNicholas Bellinger { 29642eafd729SChristoph Hellwig return container_of(to_config_group(item), struct se_hba, hba_group); 29652eafd729SChristoph Hellwig } 29662eafd729SChristoph Hellwig 29672eafd729SChristoph Hellwig static ssize_t target_hba_info_show(struct config_item *item, char *page) 29682eafd729SChristoph Hellwig { 29692eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 29702eafd729SChristoph Hellwig 2971c66ac9dbSNicholas Bellinger return sprintf(page, "HBA Index: %d plugin: %s version: %s\n", 29720a06d430SChristoph Hellwig hba->hba_id, hba->backend->ops->name, 2973ce8dd25dSChristoph Hellwig TARGET_CORE_VERSION); 2974c66ac9dbSNicholas Bellinger } 2975c66ac9dbSNicholas Bellinger 29762eafd729SChristoph Hellwig static ssize_t target_hba_mode_show(struct config_item *item, char *page) 2977c66ac9dbSNicholas Bellinger { 29782eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 2979c66ac9dbSNicholas Bellinger int hba_mode = 0; 2980c66ac9dbSNicholas Bellinger 2981c66ac9dbSNicholas Bellinger if (hba->hba_flags & HBA_FLAGS_PSCSI_MODE) 2982c66ac9dbSNicholas Bellinger hba_mode = 1; 2983c66ac9dbSNicholas Bellinger 2984c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", hba_mode); 2985c66ac9dbSNicholas Bellinger } 2986c66ac9dbSNicholas Bellinger 29872eafd729SChristoph Hellwig static ssize_t target_hba_mode_store(struct config_item *item, 2988c66ac9dbSNicholas Bellinger const char *page, size_t count) 2989c66ac9dbSNicholas Bellinger { 29902eafd729SChristoph Hellwig struct se_hba *hba = to_hba(item); 2991c66ac9dbSNicholas Bellinger unsigned long mode_flag; 2992c66ac9dbSNicholas Bellinger int ret; 2993c66ac9dbSNicholas Bellinger 29940a06d430SChristoph Hellwig if (hba->backend->ops->pmode_enable_hba == NULL) 2995c66ac9dbSNicholas Bellinger return -EINVAL; 2996c66ac9dbSNicholas Bellinger 299757103d7fSJingoo Han ret = kstrtoul(page, 0, &mode_flag); 2998c66ac9dbSNicholas Bellinger if (ret < 0) { 29996708bb27SAndy Grover pr_err("Unable to extract hba mode flag: %d\n", ret); 300057103d7fSJingoo Han return ret; 3001c66ac9dbSNicholas Bellinger } 3002c66ac9dbSNicholas Bellinger 30030fd97ccfSChristoph Hellwig if (hba->dev_count) { 30046708bb27SAndy Grover pr_err("Unable to set hba_mode with active devices\n"); 3005c66ac9dbSNicholas Bellinger return -EINVAL; 3006c66ac9dbSNicholas Bellinger } 3007c66ac9dbSNicholas Bellinger 30080a06d430SChristoph Hellwig ret = hba->backend->ops->pmode_enable_hba(hba, mode_flag); 3009c66ac9dbSNicholas Bellinger if (ret < 0) 3010c66ac9dbSNicholas Bellinger return -EINVAL; 3011c66ac9dbSNicholas Bellinger if (ret > 0) 3012c66ac9dbSNicholas Bellinger hba->hba_flags |= HBA_FLAGS_PSCSI_MODE; 3013c66ac9dbSNicholas Bellinger else if (ret == 0) 3014c66ac9dbSNicholas Bellinger hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; 3015c66ac9dbSNicholas Bellinger 3016c66ac9dbSNicholas Bellinger return count; 3017c66ac9dbSNicholas Bellinger } 3018c66ac9dbSNicholas Bellinger 30192eafd729SChristoph Hellwig CONFIGFS_ATTR_RO(target_, hba_info); 30202eafd729SChristoph Hellwig CONFIGFS_ATTR(target_, hba_mode); 3021c66ac9dbSNicholas Bellinger 30221f6fe7cbSNicholas Bellinger static void target_core_hba_release(struct config_item *item) 30231f6fe7cbSNicholas Bellinger { 30241f6fe7cbSNicholas Bellinger struct se_hba *hba = container_of(to_config_group(item), 30251f6fe7cbSNicholas Bellinger struct se_hba, hba_group); 30261f6fe7cbSNicholas Bellinger core_delete_hba(hba); 30271f6fe7cbSNicholas Bellinger } 30281f6fe7cbSNicholas Bellinger 3029c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_hba_attrs[] = { 30302eafd729SChristoph Hellwig &target_attr_hba_info, 30312eafd729SChristoph Hellwig &target_attr_hba_mode, 3032c66ac9dbSNicholas Bellinger NULL, 3033c66ac9dbSNicholas Bellinger }; 3034c66ac9dbSNicholas Bellinger 3035c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_hba_item_ops = { 30361f6fe7cbSNicholas Bellinger .release = target_core_hba_release, 3037c66ac9dbSNicholas Bellinger }; 3038c66ac9dbSNicholas Bellinger 3039c66ac9dbSNicholas Bellinger static struct config_item_type target_core_hba_cit = { 3040c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_hba_item_ops, 3041c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_hba_group_ops, 3042c66ac9dbSNicholas Bellinger .ct_attrs = target_core_hba_attrs, 3043c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 3044c66ac9dbSNicholas Bellinger }; 3045c66ac9dbSNicholas Bellinger 3046c66ac9dbSNicholas Bellinger static struct config_group *target_core_call_addhbatotarget( 3047c66ac9dbSNicholas Bellinger struct config_group *group, 3048c66ac9dbSNicholas Bellinger const char *name) 3049c66ac9dbSNicholas Bellinger { 3050c66ac9dbSNicholas Bellinger char *se_plugin_str, *str, *str2; 3051c66ac9dbSNicholas Bellinger struct se_hba *hba; 3052c66ac9dbSNicholas Bellinger char buf[TARGET_CORE_NAME_MAX_LEN]; 3053c66ac9dbSNicholas Bellinger unsigned long plugin_dep_id = 0; 3054c66ac9dbSNicholas Bellinger int ret; 3055c66ac9dbSNicholas Bellinger 3056c66ac9dbSNicholas Bellinger memset(buf, 0, TARGET_CORE_NAME_MAX_LEN); 305760d645a4SDan Carpenter if (strlen(name) >= TARGET_CORE_NAME_MAX_LEN) { 30586708bb27SAndy Grover pr_err("Passed *name strlen(): %d exceeds" 3059c66ac9dbSNicholas Bellinger " TARGET_CORE_NAME_MAX_LEN: %d\n", (int)strlen(name), 3060c66ac9dbSNicholas Bellinger TARGET_CORE_NAME_MAX_LEN); 3061c66ac9dbSNicholas Bellinger return ERR_PTR(-ENAMETOOLONG); 3062c66ac9dbSNicholas Bellinger } 3063c66ac9dbSNicholas Bellinger snprintf(buf, TARGET_CORE_NAME_MAX_LEN, "%s", name); 3064c66ac9dbSNicholas Bellinger 3065c66ac9dbSNicholas Bellinger str = strstr(buf, "_"); 30666708bb27SAndy Grover if (!str) { 30676708bb27SAndy Grover pr_err("Unable to locate \"_\" for $SUBSYSTEM_PLUGIN_$HOST_ID\n"); 3068c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 3069c66ac9dbSNicholas Bellinger } 3070c66ac9dbSNicholas Bellinger se_plugin_str = buf; 3071c66ac9dbSNicholas Bellinger /* 3072c66ac9dbSNicholas Bellinger * Special case for subsystem plugins that have "_" in their names. 3073c66ac9dbSNicholas Bellinger * Namely rd_direct and rd_mcp.. 3074c66ac9dbSNicholas Bellinger */ 3075c66ac9dbSNicholas Bellinger str2 = strstr(str+1, "_"); 30766708bb27SAndy Grover if (str2) { 3077c66ac9dbSNicholas Bellinger *str2 = '\0'; /* Terminate for *se_plugin_str */ 3078c66ac9dbSNicholas Bellinger str2++; /* Skip to start of plugin dependent ID */ 3079c66ac9dbSNicholas Bellinger str = str2; 3080c66ac9dbSNicholas Bellinger } else { 3081c66ac9dbSNicholas Bellinger *str = '\0'; /* Terminate for *se_plugin_str */ 3082c66ac9dbSNicholas Bellinger str++; /* Skip to start of plugin dependent ID */ 3083c66ac9dbSNicholas Bellinger } 3084c66ac9dbSNicholas Bellinger 308557103d7fSJingoo Han ret = kstrtoul(str, 0, &plugin_dep_id); 3086c66ac9dbSNicholas Bellinger if (ret < 0) { 308757103d7fSJingoo Han pr_err("kstrtoul() returned %d for" 3088c66ac9dbSNicholas Bellinger " plugin_dep_id\n", ret); 308957103d7fSJingoo Han return ERR_PTR(ret); 3090c66ac9dbSNicholas Bellinger } 3091c66ac9dbSNicholas Bellinger /* 3092c66ac9dbSNicholas Bellinger * Load up TCM subsystem plugins if they have not already been loaded. 3093c66ac9dbSNicholas Bellinger */ 3094dbc5623eSNicholas Bellinger transport_subsystem_check_init(); 3095c66ac9dbSNicholas Bellinger 3096c66ac9dbSNicholas Bellinger hba = core_alloc_hba(se_plugin_str, plugin_dep_id, 0); 3097c66ac9dbSNicholas Bellinger if (IS_ERR(hba)) 3098c66ac9dbSNicholas Bellinger return ERR_CAST(hba); 3099c66ac9dbSNicholas Bellinger 3100c66ac9dbSNicholas Bellinger config_group_init_type_name(&hba->hba_group, name, 3101c66ac9dbSNicholas Bellinger &target_core_hba_cit); 3102c66ac9dbSNicholas Bellinger 3103c66ac9dbSNicholas Bellinger return &hba->hba_group; 3104c66ac9dbSNicholas Bellinger } 3105c66ac9dbSNicholas Bellinger 3106c66ac9dbSNicholas Bellinger static void target_core_call_delhbafromtarget( 3107c66ac9dbSNicholas Bellinger struct config_group *group, 3108c66ac9dbSNicholas Bellinger struct config_item *item) 3109c66ac9dbSNicholas Bellinger { 31101f6fe7cbSNicholas Bellinger /* 31111f6fe7cbSNicholas Bellinger * core_delete_hba() is called from target_core_hba_item_ops->release() 31121f6fe7cbSNicholas Bellinger * -> target_core_hba_release() 31131f6fe7cbSNicholas Bellinger */ 3114c66ac9dbSNicholas Bellinger config_item_put(item); 3115c66ac9dbSNicholas Bellinger } 3116c66ac9dbSNicholas Bellinger 3117c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_group_ops = { 3118c66ac9dbSNicholas Bellinger .make_group = target_core_call_addhbatotarget, 3119c66ac9dbSNicholas Bellinger .drop_item = target_core_call_delhbafromtarget, 3120c66ac9dbSNicholas Bellinger }; 3121c66ac9dbSNicholas Bellinger 3122c66ac9dbSNicholas Bellinger static struct config_item_type target_core_cit = { 3123c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 3124c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_group_ops, 3125c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 3126c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 3127c66ac9dbSNicholas Bellinger }; 3128c66ac9dbSNicholas Bellinger 3129c66ac9dbSNicholas Bellinger /* Stop functions for struct config_item_type target_core_hba_cit */ 3130c66ac9dbSNicholas Bellinger 31310a06d430SChristoph Hellwig void target_setup_backend_cits(struct target_backend *tb) 313273112edcSNicholas Bellinger { 31330a06d430SChristoph Hellwig target_core_setup_dev_cit(tb); 31340a06d430SChristoph Hellwig target_core_setup_dev_attrib_cit(tb); 31350a06d430SChristoph Hellwig target_core_setup_dev_pr_cit(tb); 31360a06d430SChristoph Hellwig target_core_setup_dev_wwn_cit(tb); 31370a06d430SChristoph Hellwig target_core_setup_dev_alua_tg_pt_gps_cit(tb); 31380a06d430SChristoph Hellwig target_core_setup_dev_stat_cit(tb); 313973112edcSNicholas Bellinger } 314073112edcSNicholas Bellinger 314154550fabSAxel Lin static int __init target_core_init_configfs(void) 3142c66ac9dbSNicholas Bellinger { 3143c66ac9dbSNicholas Bellinger struct config_group *target_cg, *hba_cg = NULL, *alua_cg = NULL; 3144c66ac9dbSNicholas Bellinger struct config_group *lu_gp_cg = NULL; 3145d588cf8fSChristoph Hellwig struct configfs_subsystem *subsys = &target_core_fabrics; 3146c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 3147c66ac9dbSNicholas Bellinger int ret; 3148c66ac9dbSNicholas Bellinger 31496708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Loading Generic Kernel Storage" 3150c66ac9dbSNicholas Bellinger " Engine: %s on %s/%s on "UTS_RELEASE"\n", 3151c66ac9dbSNicholas Bellinger TARGET_CORE_VERSION, utsname()->sysname, utsname()->machine); 3152c66ac9dbSNicholas Bellinger 3153c66ac9dbSNicholas Bellinger config_group_init(&subsys->su_group); 3154c66ac9dbSNicholas Bellinger mutex_init(&subsys->su_mutex); 3155c66ac9dbSNicholas Bellinger 3156e3d6f909SAndy Grover ret = init_se_kmem_caches(); 3157c66ac9dbSNicholas Bellinger if (ret < 0) 3158e3d6f909SAndy Grover return ret; 3159c66ac9dbSNicholas Bellinger /* 3160c66ac9dbSNicholas Bellinger * Create $CONFIGFS/target/core default group for HBA <-> Storage Object 3161c66ac9dbSNicholas Bellinger * and ALUA Logical Unit Group and Target Port Group infrastructure. 3162c66ac9dbSNicholas Bellinger */ 3163c66ac9dbSNicholas Bellinger target_cg = &subsys->su_group; 3164ab6dae82SAndy Grover target_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3165c66ac9dbSNicholas Bellinger GFP_KERNEL); 31666708bb27SAndy Grover if (!target_cg->default_groups) { 31676708bb27SAndy Grover pr_err("Unable to allocate target_cg->default_groups\n"); 316837bb7899SPeter Senna Tschudin ret = -ENOMEM; 3169c66ac9dbSNicholas Bellinger goto out_global; 3170c66ac9dbSNicholas Bellinger } 3171c66ac9dbSNicholas Bellinger 3172e3d6f909SAndy Grover config_group_init_type_name(&target_core_hbagroup, 3173c66ac9dbSNicholas Bellinger "core", &target_core_cit); 3174e3d6f909SAndy Grover target_cg->default_groups[0] = &target_core_hbagroup; 3175c66ac9dbSNicholas Bellinger target_cg->default_groups[1] = NULL; 3176c66ac9dbSNicholas Bellinger /* 3177c66ac9dbSNicholas Bellinger * Create ALUA infrastructure under /sys/kernel/config/target/core/alua/ 3178c66ac9dbSNicholas Bellinger */ 3179e3d6f909SAndy Grover hba_cg = &target_core_hbagroup; 318013f6a914SSebastian Andrzej Siewior hba_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3181c66ac9dbSNicholas Bellinger GFP_KERNEL); 31826708bb27SAndy Grover if (!hba_cg->default_groups) { 31836708bb27SAndy Grover pr_err("Unable to allocate hba_cg->default_groups\n"); 318437bb7899SPeter Senna Tschudin ret = -ENOMEM; 3185c66ac9dbSNicholas Bellinger goto out_global; 3186c66ac9dbSNicholas Bellinger } 3187e3d6f909SAndy Grover config_group_init_type_name(&alua_group, 3188c66ac9dbSNicholas Bellinger "alua", &target_core_alua_cit); 3189e3d6f909SAndy Grover hba_cg->default_groups[0] = &alua_group; 3190c66ac9dbSNicholas Bellinger hba_cg->default_groups[1] = NULL; 3191c66ac9dbSNicholas Bellinger /* 3192c66ac9dbSNicholas Bellinger * Add ALUA Logical Unit Group and Target Port Group ConfigFS 3193c66ac9dbSNicholas Bellinger * groups under /sys/kernel/config/target/core/alua/ 3194c66ac9dbSNicholas Bellinger */ 3195e3d6f909SAndy Grover alua_cg = &alua_group; 319613f6a914SSebastian Andrzej Siewior alua_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3197c66ac9dbSNicholas Bellinger GFP_KERNEL); 31986708bb27SAndy Grover if (!alua_cg->default_groups) { 31996708bb27SAndy Grover pr_err("Unable to allocate alua_cg->default_groups\n"); 320037bb7899SPeter Senna Tschudin ret = -ENOMEM; 3201c66ac9dbSNicholas Bellinger goto out_global; 3202c66ac9dbSNicholas Bellinger } 3203c66ac9dbSNicholas Bellinger 3204e3d6f909SAndy Grover config_group_init_type_name(&alua_lu_gps_group, 3205c66ac9dbSNicholas Bellinger "lu_gps", &target_core_alua_lu_gps_cit); 3206e3d6f909SAndy Grover alua_cg->default_groups[0] = &alua_lu_gps_group; 3207c66ac9dbSNicholas Bellinger alua_cg->default_groups[1] = NULL; 3208c66ac9dbSNicholas Bellinger /* 3209c66ac9dbSNicholas Bellinger * Add core/alua/lu_gps/default_lu_gp 3210c66ac9dbSNicholas Bellinger */ 3211c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1); 321237bb7899SPeter Senna Tschudin if (IS_ERR(lu_gp)) { 321337bb7899SPeter Senna Tschudin ret = -ENOMEM; 3214c66ac9dbSNicholas Bellinger goto out_global; 321537bb7899SPeter Senna Tschudin } 3216c66ac9dbSNicholas Bellinger 3217e3d6f909SAndy Grover lu_gp_cg = &alua_lu_gps_group; 321813f6a914SSebastian Andrzej Siewior lu_gp_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 3219c66ac9dbSNicholas Bellinger GFP_KERNEL); 32206708bb27SAndy Grover if (!lu_gp_cg->default_groups) { 32216708bb27SAndy Grover pr_err("Unable to allocate lu_gp_cg->default_groups\n"); 322237bb7899SPeter Senna Tschudin ret = -ENOMEM; 3223c66ac9dbSNicholas Bellinger goto out_global; 3224c66ac9dbSNicholas Bellinger } 3225c66ac9dbSNicholas Bellinger 3226c66ac9dbSNicholas Bellinger config_group_init_type_name(&lu_gp->lu_gp_group, "default_lu_gp", 3227c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 3228c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[0] = &lu_gp->lu_gp_group; 3229c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[1] = NULL; 3230e3d6f909SAndy Grover default_lu_gp = lu_gp; 3231c66ac9dbSNicholas Bellinger /* 3232c66ac9dbSNicholas Bellinger * Register the target_core_mod subsystem with configfs. 3233c66ac9dbSNicholas Bellinger */ 3234c66ac9dbSNicholas Bellinger ret = configfs_register_subsystem(subsys); 3235c66ac9dbSNicholas Bellinger if (ret < 0) { 32366708bb27SAndy Grover pr_err("Error %d while registering subsystem %s\n", 3237c66ac9dbSNicholas Bellinger ret, subsys->su_group.cg_item.ci_namebuf); 3238c66ac9dbSNicholas Bellinger goto out_global; 3239c66ac9dbSNicholas Bellinger } 32406708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Initialized ConfigFS Fabric" 3241ce8dd25dSChristoph Hellwig " Infrastructure: "TARGET_CORE_VERSION" on %s/%s" 3242c66ac9dbSNicholas Bellinger " on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); 3243c66ac9dbSNicholas Bellinger /* 3244c66ac9dbSNicholas Bellinger * Register built-in RAMDISK subsystem logic for virtual LUN 0 3245c66ac9dbSNicholas Bellinger */ 3246c66ac9dbSNicholas Bellinger ret = rd_module_init(); 3247c66ac9dbSNicholas Bellinger if (ret < 0) 3248c66ac9dbSNicholas Bellinger goto out; 3249c66ac9dbSNicholas Bellinger 32500d0f9dfbSRoland Dreier ret = core_dev_setup_virtual_lun0(); 32510d0f9dfbSRoland Dreier if (ret < 0) 3252c66ac9dbSNicholas Bellinger goto out; 3253c66ac9dbSNicholas Bellinger 3254f99715acSNicholas Bellinger ret = target_xcopy_setup_pt(); 3255f99715acSNicholas Bellinger if (ret < 0) 3256f99715acSNicholas Bellinger goto out; 3257f99715acSNicholas Bellinger 3258c66ac9dbSNicholas Bellinger return 0; 3259c66ac9dbSNicholas Bellinger 3260c66ac9dbSNicholas Bellinger out: 3261c66ac9dbSNicholas Bellinger configfs_unregister_subsystem(subsys); 3262c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3263c66ac9dbSNicholas Bellinger rd_module_exit(); 3264c66ac9dbSNicholas Bellinger out_global: 3265e3d6f909SAndy Grover if (default_lu_gp) { 3266e3d6f909SAndy Grover core_alua_free_lu_gp(default_lu_gp); 3267e3d6f909SAndy Grover default_lu_gp = NULL; 3268c66ac9dbSNicholas Bellinger } 3269c66ac9dbSNicholas Bellinger if (lu_gp_cg) 3270c66ac9dbSNicholas Bellinger kfree(lu_gp_cg->default_groups); 3271c66ac9dbSNicholas Bellinger if (alua_cg) 3272c66ac9dbSNicholas Bellinger kfree(alua_cg->default_groups); 3273c66ac9dbSNicholas Bellinger if (hba_cg) 3274c66ac9dbSNicholas Bellinger kfree(hba_cg->default_groups); 3275c66ac9dbSNicholas Bellinger kfree(target_cg->default_groups); 3276e3d6f909SAndy Grover release_se_kmem_caches(); 3277e3d6f909SAndy Grover return ret; 3278c66ac9dbSNicholas Bellinger } 3279c66ac9dbSNicholas Bellinger 328054550fabSAxel Lin static void __exit target_core_exit_configfs(void) 3281c66ac9dbSNicholas Bellinger { 3282c66ac9dbSNicholas Bellinger struct config_group *hba_cg, *alua_cg, *lu_gp_cg; 3283c66ac9dbSNicholas Bellinger struct config_item *item; 3284c66ac9dbSNicholas Bellinger int i; 3285c66ac9dbSNicholas Bellinger 3286e3d6f909SAndy Grover lu_gp_cg = &alua_lu_gps_group; 3287c66ac9dbSNicholas Bellinger for (i = 0; lu_gp_cg->default_groups[i]; i++) { 3288c66ac9dbSNicholas Bellinger item = &lu_gp_cg->default_groups[i]->cg_item; 3289c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[i] = NULL; 3290c66ac9dbSNicholas Bellinger config_item_put(item); 3291c66ac9dbSNicholas Bellinger } 3292c66ac9dbSNicholas Bellinger kfree(lu_gp_cg->default_groups); 32937c2bf6e9SNicholas Bellinger lu_gp_cg->default_groups = NULL; 3294c66ac9dbSNicholas Bellinger 3295e3d6f909SAndy Grover alua_cg = &alua_group; 3296c66ac9dbSNicholas Bellinger for (i = 0; alua_cg->default_groups[i]; i++) { 3297c66ac9dbSNicholas Bellinger item = &alua_cg->default_groups[i]->cg_item; 3298c66ac9dbSNicholas Bellinger alua_cg->default_groups[i] = NULL; 3299c66ac9dbSNicholas Bellinger config_item_put(item); 3300c66ac9dbSNicholas Bellinger } 3301c66ac9dbSNicholas Bellinger kfree(alua_cg->default_groups); 33027c2bf6e9SNicholas Bellinger alua_cg->default_groups = NULL; 3303c66ac9dbSNicholas Bellinger 3304e3d6f909SAndy Grover hba_cg = &target_core_hbagroup; 3305c66ac9dbSNicholas Bellinger for (i = 0; hba_cg->default_groups[i]; i++) { 3306c66ac9dbSNicholas Bellinger item = &hba_cg->default_groups[i]->cg_item; 3307c66ac9dbSNicholas Bellinger hba_cg->default_groups[i] = NULL; 3308c66ac9dbSNicholas Bellinger config_item_put(item); 3309c66ac9dbSNicholas Bellinger } 3310c66ac9dbSNicholas Bellinger kfree(hba_cg->default_groups); 33117c2bf6e9SNicholas Bellinger hba_cg->default_groups = NULL; 33127c2bf6e9SNicholas Bellinger /* 33137c2bf6e9SNicholas Bellinger * We expect subsys->su_group.default_groups to be released 33147c2bf6e9SNicholas Bellinger * by configfs subsystem provider logic.. 33157c2bf6e9SNicholas Bellinger */ 3316d588cf8fSChristoph Hellwig configfs_unregister_subsystem(&target_core_fabrics); 3317d588cf8fSChristoph Hellwig kfree(target_core_fabrics.su_group.default_groups); 3318c66ac9dbSNicholas Bellinger 3319e3d6f909SAndy Grover core_alua_free_lu_gp(default_lu_gp); 3320e3d6f909SAndy Grover default_lu_gp = NULL; 33217c2bf6e9SNicholas Bellinger 33226708bb27SAndy Grover pr_debug("TARGET_CORE[0]: Released ConfigFS Fabric" 3323c66ac9dbSNicholas Bellinger " Infrastructure\n"); 3324c66ac9dbSNicholas Bellinger 3325c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3326c66ac9dbSNicholas Bellinger rd_module_exit(); 3327f99715acSNicholas Bellinger target_xcopy_release_pt(); 3328e3d6f909SAndy Grover release_se_kmem_caches(); 3329c66ac9dbSNicholas Bellinger } 3330c66ac9dbSNicholas Bellinger 3331c66ac9dbSNicholas Bellinger MODULE_DESCRIPTION("Target_Core_Mod/ConfigFS"); 3332c66ac9dbSNicholas Bellinger MODULE_AUTHOR("nab@Linux-iSCSI.org"); 3333c66ac9dbSNicholas Bellinger MODULE_LICENSE("GPL"); 3334c66ac9dbSNicholas Bellinger 3335c66ac9dbSNicholas Bellinger module_init(target_core_init_configfs); 3336c66ac9dbSNicholas Bellinger module_exit(target_core_exit_configfs); 3337