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 * 6c66ac9dbSNicholas Bellinger * Copyright (c) 2008-2010 Rising Tide Systems 7c66ac9dbSNicholas Bellinger * Copyright (c) 2008-2010 Linux-iSCSI.org 8c66ac9dbSNicholas Bellinger * 9c66ac9dbSNicholas Bellinger * Nicholas A. Bellinger <nab@kernel.org> 10c66ac9dbSNicholas Bellinger * 11c66ac9dbSNicholas Bellinger * based on configfs Copyright (C) 2005 Oracle. All rights reserved. 12c66ac9dbSNicholas Bellinger * 13c66ac9dbSNicholas Bellinger * This program is free software; you can redistribute it and/or modify 14c66ac9dbSNicholas Bellinger * it under the terms of the GNU General Public License as published by 15c66ac9dbSNicholas Bellinger * the Free Software Foundation; either version 2 of the License, or 16c66ac9dbSNicholas Bellinger * (at your option) any later version. 17c66ac9dbSNicholas Bellinger * 18c66ac9dbSNicholas Bellinger * This program is distributed in the hope that it will be useful, 19c66ac9dbSNicholas Bellinger * but WITHOUT ANY WARRANTY; without even the implied warranty of 20c66ac9dbSNicholas Bellinger * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21c66ac9dbSNicholas Bellinger * GNU General Public License for more details. 22c66ac9dbSNicholas Bellinger ****************************************************************************/ 23c66ac9dbSNicholas Bellinger 24c66ac9dbSNicholas Bellinger #include <linux/module.h> 25c66ac9dbSNicholas Bellinger #include <linux/moduleparam.h> 26c66ac9dbSNicholas Bellinger #include <linux/version.h> 27c66ac9dbSNicholas Bellinger #include <generated/utsrelease.h> 28c66ac9dbSNicholas Bellinger #include <linux/utsname.h> 29c66ac9dbSNicholas Bellinger #include <linux/init.h> 30c66ac9dbSNicholas Bellinger #include <linux/fs.h> 31c66ac9dbSNicholas Bellinger #include <linux/namei.h> 32c66ac9dbSNicholas Bellinger #include <linux/slab.h> 33c66ac9dbSNicholas Bellinger #include <linux/types.h> 34c66ac9dbSNicholas Bellinger #include <linux/delay.h> 35c66ac9dbSNicholas Bellinger #include <linux/unistd.h> 36c66ac9dbSNicholas Bellinger #include <linux/string.h> 37c66ac9dbSNicholas Bellinger #include <linux/parser.h> 38c66ac9dbSNicholas Bellinger #include <linux/syscalls.h> 39c66ac9dbSNicholas Bellinger #include <linux/configfs.h> 40c66ac9dbSNicholas Bellinger 41c66ac9dbSNicholas Bellinger #include <target/target_core_base.h> 42c66ac9dbSNicholas Bellinger #include <target/target_core_device.h> 43c66ac9dbSNicholas Bellinger #include <target/target_core_transport.h> 44c66ac9dbSNicholas Bellinger #include <target/target_core_fabric_ops.h> 45c66ac9dbSNicholas Bellinger #include <target/target_core_fabric_configfs.h> 46c66ac9dbSNicholas Bellinger #include <target/target_core_configfs.h> 47c66ac9dbSNicholas Bellinger #include <target/configfs_macros.h> 48c66ac9dbSNicholas Bellinger 49c66ac9dbSNicholas Bellinger #include "target_core_alua.h" 50c66ac9dbSNicholas Bellinger #include "target_core_hba.h" 51c66ac9dbSNicholas Bellinger #include "target_core_pr.h" 52c66ac9dbSNicholas Bellinger #include "target_core_rd.h" 53c66ac9dbSNicholas Bellinger 54c66ac9dbSNicholas Bellinger static struct list_head g_tf_list; 55c66ac9dbSNicholas Bellinger static struct mutex g_tf_lock; 56c66ac9dbSNicholas Bellinger 57c66ac9dbSNicholas Bellinger struct target_core_configfs_attribute { 58c66ac9dbSNicholas Bellinger struct configfs_attribute attr; 59c66ac9dbSNicholas Bellinger ssize_t (*show)(void *, char *); 60c66ac9dbSNicholas Bellinger ssize_t (*store)(void *, const char *, size_t); 61c66ac9dbSNicholas Bellinger }; 62c66ac9dbSNicholas Bellinger 63c66ac9dbSNicholas Bellinger static inline struct se_hba * 64c66ac9dbSNicholas Bellinger item_to_hba(struct config_item *item) 65c66ac9dbSNicholas Bellinger { 66c66ac9dbSNicholas Bellinger return container_of(to_config_group(item), struct se_hba, hba_group); 67c66ac9dbSNicholas Bellinger } 68c66ac9dbSNicholas Bellinger 69c66ac9dbSNicholas Bellinger /* 70c66ac9dbSNicholas Bellinger * Attributes for /sys/kernel/config/target/ 71c66ac9dbSNicholas Bellinger */ 72c66ac9dbSNicholas Bellinger static ssize_t target_core_attr_show(struct config_item *item, 73c66ac9dbSNicholas Bellinger struct configfs_attribute *attr, 74c66ac9dbSNicholas Bellinger char *page) 75c66ac9dbSNicholas Bellinger { 76c66ac9dbSNicholas Bellinger return sprintf(page, "Target Engine Core ConfigFS Infrastructure %s" 77c66ac9dbSNicholas Bellinger " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_CONFIGFS_VERSION, 78c66ac9dbSNicholas Bellinger utsname()->sysname, utsname()->machine); 79c66ac9dbSNicholas Bellinger } 80c66ac9dbSNicholas Bellinger 81c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_fabric_item_ops = { 82c66ac9dbSNicholas Bellinger .show_attribute = target_core_attr_show, 83c66ac9dbSNicholas Bellinger }; 84c66ac9dbSNicholas Bellinger 85c66ac9dbSNicholas Bellinger static struct configfs_attribute target_core_item_attr_version = { 86c66ac9dbSNicholas Bellinger .ca_owner = THIS_MODULE, 87c66ac9dbSNicholas Bellinger .ca_name = "version", 88c66ac9dbSNicholas Bellinger .ca_mode = S_IRUGO, 89c66ac9dbSNicholas Bellinger }; 90c66ac9dbSNicholas Bellinger 91c66ac9dbSNicholas Bellinger static struct target_fabric_configfs *target_core_get_fabric( 92c66ac9dbSNicholas Bellinger const char *name) 93c66ac9dbSNicholas Bellinger { 94c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf; 95c66ac9dbSNicholas Bellinger 96c66ac9dbSNicholas Bellinger if (!(name)) 97c66ac9dbSNicholas Bellinger return NULL; 98c66ac9dbSNicholas Bellinger 99c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 100c66ac9dbSNicholas Bellinger list_for_each_entry(tf, &g_tf_list, tf_list) { 101c66ac9dbSNicholas Bellinger if (!(strcmp(tf->tf_name, name))) { 102c66ac9dbSNicholas Bellinger atomic_inc(&tf->tf_access_cnt); 103c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 104c66ac9dbSNicholas Bellinger return tf; 105c66ac9dbSNicholas Bellinger } 106c66ac9dbSNicholas Bellinger } 107c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 108c66ac9dbSNicholas Bellinger 109c66ac9dbSNicholas Bellinger return NULL; 110c66ac9dbSNicholas Bellinger } 111c66ac9dbSNicholas Bellinger 112c66ac9dbSNicholas Bellinger /* 113c66ac9dbSNicholas Bellinger * Called from struct target_core_group_ops->make_group() 114c66ac9dbSNicholas Bellinger */ 115c66ac9dbSNicholas Bellinger static struct config_group *target_core_register_fabric( 116c66ac9dbSNicholas Bellinger struct config_group *group, 117c66ac9dbSNicholas Bellinger const char *name) 118c66ac9dbSNicholas Bellinger { 119c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf; 120c66ac9dbSNicholas Bellinger int ret; 121c66ac9dbSNicholas Bellinger 122c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: REGISTER -> group: %p name:" 123c66ac9dbSNicholas Bellinger " %s\n", group, name); 124c66ac9dbSNicholas Bellinger /* 125c66ac9dbSNicholas Bellinger * Ensure that TCM subsystem plugins are loaded at this point for 126c66ac9dbSNicholas Bellinger * using the RAMDISK_DR virtual LUN 0 and all other struct se_port 127c66ac9dbSNicholas Bellinger * LUN symlinks. 128c66ac9dbSNicholas Bellinger */ 129c66ac9dbSNicholas Bellinger if (transport_subsystem_check_init() < 0) 130c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 131c66ac9dbSNicholas Bellinger 132c66ac9dbSNicholas Bellinger /* 133c66ac9dbSNicholas Bellinger * Below are some hardcoded request_module() calls to automatically 134c66ac9dbSNicholas Bellinger * local fabric modules when the following is called: 135c66ac9dbSNicholas Bellinger * 136c66ac9dbSNicholas Bellinger * mkdir -p /sys/kernel/config/target/$MODULE_NAME 137c66ac9dbSNicholas Bellinger * 138c66ac9dbSNicholas Bellinger * Note that this does not limit which TCM fabric module can be 139c66ac9dbSNicholas Bellinger * registered, but simply provids auto loading logic for modules with 140c66ac9dbSNicholas Bellinger * mkdir(2) system calls with known TCM fabric modules. 141c66ac9dbSNicholas Bellinger */ 142c66ac9dbSNicholas Bellinger if (!(strncmp(name, "iscsi", 5))) { 143c66ac9dbSNicholas Bellinger /* 144c66ac9dbSNicholas Bellinger * Automatically load the LIO Target fabric module when the 145c66ac9dbSNicholas Bellinger * following is called: 146c66ac9dbSNicholas Bellinger * 147c66ac9dbSNicholas Bellinger * mkdir -p $CONFIGFS/target/iscsi 148c66ac9dbSNicholas Bellinger */ 149c66ac9dbSNicholas Bellinger ret = request_module("iscsi_target_mod"); 150c66ac9dbSNicholas Bellinger if (ret < 0) { 151c66ac9dbSNicholas Bellinger printk(KERN_ERR "request_module() failed for" 152c66ac9dbSNicholas Bellinger " iscsi_target_mod.ko: %d\n", ret); 153c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 154c66ac9dbSNicholas Bellinger } 155c66ac9dbSNicholas Bellinger } else if (!(strncmp(name, "loopback", 8))) { 156c66ac9dbSNicholas Bellinger /* 157c66ac9dbSNicholas Bellinger * Automatically load the tcm_loop fabric module when the 158c66ac9dbSNicholas Bellinger * following is called: 159c66ac9dbSNicholas Bellinger * 160c66ac9dbSNicholas Bellinger * mkdir -p $CONFIGFS/target/loopback 161c66ac9dbSNicholas Bellinger */ 162c66ac9dbSNicholas Bellinger ret = request_module("tcm_loop"); 163c66ac9dbSNicholas Bellinger if (ret < 0) { 164c66ac9dbSNicholas Bellinger printk(KERN_ERR "request_module() failed for" 165c66ac9dbSNicholas Bellinger " tcm_loop.ko: %d\n", ret); 166c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 167c66ac9dbSNicholas Bellinger } 168c66ac9dbSNicholas Bellinger } 169c66ac9dbSNicholas Bellinger 170c66ac9dbSNicholas Bellinger tf = target_core_get_fabric(name); 171c66ac9dbSNicholas Bellinger if (!(tf)) { 172c66ac9dbSNicholas Bellinger printk(KERN_ERR "target_core_get_fabric() failed for %s\n", 173c66ac9dbSNicholas Bellinger name); 174c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 175c66ac9dbSNicholas Bellinger } 176c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: REGISTER -> Located fabric:" 177c66ac9dbSNicholas Bellinger " %s\n", tf->tf_name); 178c66ac9dbSNicholas Bellinger /* 179c66ac9dbSNicholas Bellinger * On a successful target_core_get_fabric() look, the returned 180c66ac9dbSNicholas Bellinger * struct target_fabric_configfs *tf will contain a usage reference. 181c66ac9dbSNicholas Bellinger */ 182c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n", 183c66ac9dbSNicholas Bellinger &TF_CIT_TMPL(tf)->tfc_wwn_cit); 184c66ac9dbSNicholas Bellinger 185c66ac9dbSNicholas Bellinger tf->tf_group.default_groups = tf->tf_default_groups; 186c66ac9dbSNicholas Bellinger tf->tf_group.default_groups[0] = &tf->tf_disc_group; 187c66ac9dbSNicholas Bellinger tf->tf_group.default_groups[1] = NULL; 188c66ac9dbSNicholas Bellinger 189c66ac9dbSNicholas Bellinger config_group_init_type_name(&tf->tf_group, name, 190c66ac9dbSNicholas Bellinger &TF_CIT_TMPL(tf)->tfc_wwn_cit); 191c66ac9dbSNicholas Bellinger config_group_init_type_name(&tf->tf_disc_group, "discovery_auth", 192c66ac9dbSNicholas Bellinger &TF_CIT_TMPL(tf)->tfc_discovery_cit); 193c66ac9dbSNicholas Bellinger 194c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: REGISTER -> Allocated Fabric:" 195c66ac9dbSNicholas Bellinger " %s\n", tf->tf_group.cg_item.ci_name); 196c66ac9dbSNicholas Bellinger /* 197c66ac9dbSNicholas Bellinger * Setup tf_ops.tf_subsys pointer for usage with configfs_depend_item() 198c66ac9dbSNicholas Bellinger */ 199c66ac9dbSNicholas Bellinger tf->tf_ops.tf_subsys = tf->tf_subsys; 200c66ac9dbSNicholas Bellinger tf->tf_fabric = &tf->tf_group.cg_item; 201c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: REGISTER -> Set tf->tf_fabric" 202c66ac9dbSNicholas Bellinger " for %s\n", name); 203c66ac9dbSNicholas Bellinger 204c66ac9dbSNicholas Bellinger return &tf->tf_group; 205c66ac9dbSNicholas Bellinger } 206c66ac9dbSNicholas Bellinger 207c66ac9dbSNicholas Bellinger /* 208c66ac9dbSNicholas Bellinger * Called from struct target_core_group_ops->drop_item() 209c66ac9dbSNicholas Bellinger */ 210c66ac9dbSNicholas Bellinger static void target_core_deregister_fabric( 211c66ac9dbSNicholas Bellinger struct config_group *group, 212c66ac9dbSNicholas Bellinger struct config_item *item) 213c66ac9dbSNicholas Bellinger { 214c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf = container_of( 215c66ac9dbSNicholas Bellinger to_config_group(item), struct target_fabric_configfs, tf_group); 216c66ac9dbSNicholas Bellinger struct config_group *tf_group; 217c66ac9dbSNicholas Bellinger struct config_item *df_item; 218c66ac9dbSNicholas Bellinger int i; 219c66ac9dbSNicholas Bellinger 220c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: DEREGISTER -> Looking up %s in" 221c66ac9dbSNicholas Bellinger " tf list\n", config_item_name(item)); 222c66ac9dbSNicholas Bellinger 223c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: DEREGISTER -> located fabric:" 224c66ac9dbSNicholas Bellinger " %s\n", tf->tf_name); 225c66ac9dbSNicholas Bellinger atomic_dec(&tf->tf_access_cnt); 226c66ac9dbSNicholas Bellinger 227c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: DEREGISTER -> Releasing" 228c66ac9dbSNicholas Bellinger " tf->tf_fabric for %s\n", tf->tf_name); 229c66ac9dbSNicholas Bellinger tf->tf_fabric = NULL; 230c66ac9dbSNicholas Bellinger 231c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: DEREGISTER -> Releasing ci" 232c66ac9dbSNicholas Bellinger " %s\n", config_item_name(item)); 233c66ac9dbSNicholas Bellinger 234c66ac9dbSNicholas Bellinger tf_group = &tf->tf_group; 235c66ac9dbSNicholas Bellinger for (i = 0; tf_group->default_groups[i]; i++) { 236c66ac9dbSNicholas Bellinger df_item = &tf_group->default_groups[i]->cg_item; 237c66ac9dbSNicholas Bellinger tf_group->default_groups[i] = NULL; 238c66ac9dbSNicholas Bellinger config_item_put(df_item); 239c66ac9dbSNicholas Bellinger } 240c66ac9dbSNicholas Bellinger config_item_put(item); 241c66ac9dbSNicholas Bellinger } 242c66ac9dbSNicholas Bellinger 243c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_fabric_group_ops = { 244c66ac9dbSNicholas Bellinger .make_group = &target_core_register_fabric, 245c66ac9dbSNicholas Bellinger .drop_item = &target_core_deregister_fabric, 246c66ac9dbSNicholas Bellinger }; 247c66ac9dbSNicholas Bellinger 248c66ac9dbSNicholas Bellinger /* 249c66ac9dbSNicholas Bellinger * All item attributes appearing in /sys/kernel/target/ appear here. 250c66ac9dbSNicholas Bellinger */ 251c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_fabric_item_attrs[] = { 252c66ac9dbSNicholas Bellinger &target_core_item_attr_version, 253c66ac9dbSNicholas Bellinger NULL, 254c66ac9dbSNicholas Bellinger }; 255c66ac9dbSNicholas Bellinger 256c66ac9dbSNicholas Bellinger /* 257c66ac9dbSNicholas Bellinger * Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/ 258c66ac9dbSNicholas Bellinger */ 259c66ac9dbSNicholas Bellinger static struct config_item_type target_core_fabrics_item = { 260c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_fabric_item_ops, 261c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_fabric_group_ops, 262c66ac9dbSNicholas Bellinger .ct_attrs = target_core_fabric_item_attrs, 263c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 264c66ac9dbSNicholas Bellinger }; 265c66ac9dbSNicholas Bellinger 266c66ac9dbSNicholas Bellinger static struct configfs_subsystem target_core_fabrics = { 267c66ac9dbSNicholas Bellinger .su_group = { 268c66ac9dbSNicholas Bellinger .cg_item = { 269c66ac9dbSNicholas Bellinger .ci_namebuf = "target", 270c66ac9dbSNicholas Bellinger .ci_type = &target_core_fabrics_item, 271c66ac9dbSNicholas Bellinger }, 272c66ac9dbSNicholas Bellinger }, 273c66ac9dbSNicholas Bellinger }; 274c66ac9dbSNicholas Bellinger 275c66ac9dbSNicholas Bellinger static struct configfs_subsystem *target_core_subsystem[] = { 276c66ac9dbSNicholas Bellinger &target_core_fabrics, 277c66ac9dbSNicholas Bellinger NULL, 278c66ac9dbSNicholas Bellinger }; 279c66ac9dbSNicholas Bellinger 280c66ac9dbSNicholas Bellinger /*############################################################################## 281c66ac9dbSNicholas Bellinger // Start functions called by external Target Fabrics Modules 282c66ac9dbSNicholas Bellinger //############################################################################*/ 283c66ac9dbSNicholas Bellinger 284c66ac9dbSNicholas Bellinger /* 285c66ac9dbSNicholas Bellinger * First function called by fabric modules to: 286c66ac9dbSNicholas Bellinger * 287c66ac9dbSNicholas Bellinger * 1) Allocate a struct target_fabric_configfs and save the *fabric_cit pointer. 288c66ac9dbSNicholas Bellinger * 2) Add struct target_fabric_configfs to g_tf_list 289c66ac9dbSNicholas Bellinger * 3) Return struct target_fabric_configfs to fabric module to be passed 290c66ac9dbSNicholas Bellinger * into target_fabric_configfs_register(). 291c66ac9dbSNicholas Bellinger */ 292c66ac9dbSNicholas Bellinger struct target_fabric_configfs *target_fabric_configfs_init( 293c66ac9dbSNicholas Bellinger struct module *fabric_mod, 294c66ac9dbSNicholas Bellinger const char *name) 295c66ac9dbSNicholas Bellinger { 296c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf; 297c66ac9dbSNicholas Bellinger 298c66ac9dbSNicholas Bellinger if (!(fabric_mod)) { 299c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing struct module *fabric_mod pointer\n"); 300c66ac9dbSNicholas Bellinger return NULL; 301c66ac9dbSNicholas Bellinger } 302c66ac9dbSNicholas Bellinger if (!(name)) { 303c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate passed fabric name\n"); 304c66ac9dbSNicholas Bellinger return NULL; 305c66ac9dbSNicholas Bellinger } 306c66ac9dbSNicholas Bellinger if (strlen(name) > TARGET_FABRIC_NAME_SIZE) { 307c66ac9dbSNicholas Bellinger printk(KERN_ERR "Passed name: %s exceeds TARGET_FABRIC" 308c66ac9dbSNicholas Bellinger "_NAME_SIZE\n", name); 309c66ac9dbSNicholas Bellinger return NULL; 310c66ac9dbSNicholas Bellinger } 311c66ac9dbSNicholas Bellinger 312c66ac9dbSNicholas Bellinger tf = kzalloc(sizeof(struct target_fabric_configfs), GFP_KERNEL); 313c66ac9dbSNicholas Bellinger if (!(tf)) 314c66ac9dbSNicholas Bellinger return ERR_PTR(-ENOMEM); 315c66ac9dbSNicholas Bellinger 316c66ac9dbSNicholas Bellinger INIT_LIST_HEAD(&tf->tf_list); 317c66ac9dbSNicholas Bellinger atomic_set(&tf->tf_access_cnt, 0); 318c66ac9dbSNicholas Bellinger /* 319c66ac9dbSNicholas Bellinger * Setup the default generic struct config_item_type's (cits) in 320c66ac9dbSNicholas Bellinger * struct target_fabric_configfs->tf_cit_tmpl 321c66ac9dbSNicholas Bellinger */ 322c66ac9dbSNicholas Bellinger tf->tf_module = fabric_mod; 323c66ac9dbSNicholas Bellinger target_fabric_setup_cits(tf); 324c66ac9dbSNicholas Bellinger 325c66ac9dbSNicholas Bellinger tf->tf_subsys = target_core_subsystem[0]; 326c66ac9dbSNicholas Bellinger snprintf(tf->tf_name, TARGET_FABRIC_NAME_SIZE, "%s", name); 327c66ac9dbSNicholas Bellinger 328c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 329c66ac9dbSNicholas Bellinger list_add_tail(&tf->tf_list, &g_tf_list); 330c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 331c66ac9dbSNicholas Bellinger 332c66ac9dbSNicholas Bellinger printk(KERN_INFO "<<<<<<<<<<<<<<<<<<<<<< BEGIN FABRIC API >>>>>>>>" 333c66ac9dbSNicholas Bellinger ">>>>>>>>>>>>>>\n"); 334c66ac9dbSNicholas Bellinger printk(KERN_INFO "Initialized struct target_fabric_configfs: %p for" 335c66ac9dbSNicholas Bellinger " %s\n", tf, tf->tf_name); 336c66ac9dbSNicholas Bellinger return tf; 337c66ac9dbSNicholas Bellinger } 338c66ac9dbSNicholas Bellinger EXPORT_SYMBOL(target_fabric_configfs_init); 339c66ac9dbSNicholas Bellinger 340c66ac9dbSNicholas Bellinger /* 341c66ac9dbSNicholas Bellinger * Called by fabric plugins after FAILED target_fabric_configfs_register() call. 342c66ac9dbSNicholas Bellinger */ 343c66ac9dbSNicholas Bellinger void target_fabric_configfs_free( 344c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf) 345c66ac9dbSNicholas Bellinger { 346c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 347c66ac9dbSNicholas Bellinger list_del(&tf->tf_list); 348c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 349c66ac9dbSNicholas Bellinger 350c66ac9dbSNicholas Bellinger kfree(tf); 351c66ac9dbSNicholas Bellinger } 352c66ac9dbSNicholas Bellinger EXPORT_SYMBOL(target_fabric_configfs_free); 353c66ac9dbSNicholas Bellinger 354c66ac9dbSNicholas Bellinger /* 355c66ac9dbSNicholas Bellinger * Perform a sanity check of the passed tf->tf_ops before completing 356c66ac9dbSNicholas Bellinger * TCM fabric module registration. 357c66ac9dbSNicholas Bellinger */ 358c66ac9dbSNicholas Bellinger static int target_fabric_tf_ops_check( 359c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf) 360c66ac9dbSNicholas Bellinger { 361c66ac9dbSNicholas Bellinger struct target_core_fabric_ops *tfo = &tf->tf_ops; 362c66ac9dbSNicholas Bellinger 363c66ac9dbSNicholas Bellinger if (!(tfo->get_fabric_name)) { 364c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->get_fabric_name()\n"); 365c66ac9dbSNicholas Bellinger return -EINVAL; 366c66ac9dbSNicholas Bellinger } 367c66ac9dbSNicholas Bellinger if (!(tfo->get_fabric_proto_ident)) { 368c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->get_fabric_proto_ident()\n"); 369c66ac9dbSNicholas Bellinger return -EINVAL; 370c66ac9dbSNicholas Bellinger } 371c66ac9dbSNicholas Bellinger if (!(tfo->tpg_get_wwn)) { 372c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_get_wwn()\n"); 373c66ac9dbSNicholas Bellinger return -EINVAL; 374c66ac9dbSNicholas Bellinger } 375c66ac9dbSNicholas Bellinger if (!(tfo->tpg_get_tag)) { 376c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_get_tag()\n"); 377c66ac9dbSNicholas Bellinger return -EINVAL; 378c66ac9dbSNicholas Bellinger } 379c66ac9dbSNicholas Bellinger if (!(tfo->tpg_get_default_depth)) { 380c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_get_default_depth()\n"); 381c66ac9dbSNicholas Bellinger return -EINVAL; 382c66ac9dbSNicholas Bellinger } 383c66ac9dbSNicholas Bellinger if (!(tfo->tpg_get_pr_transport_id)) { 384c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_get_pr_transport_id()\n"); 385c66ac9dbSNicholas Bellinger return -EINVAL; 386c66ac9dbSNicholas Bellinger } 387c66ac9dbSNicholas Bellinger if (!(tfo->tpg_get_pr_transport_id_len)) { 388c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_get_pr_transport_id_len()\n"); 389c66ac9dbSNicholas Bellinger return -EINVAL; 390c66ac9dbSNicholas Bellinger } 391c66ac9dbSNicholas Bellinger if (!(tfo->tpg_check_demo_mode)) { 392c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_check_demo_mode()\n"); 393c66ac9dbSNicholas Bellinger return -EINVAL; 394c66ac9dbSNicholas Bellinger } 395c66ac9dbSNicholas Bellinger if (!(tfo->tpg_check_demo_mode_cache)) { 396c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_check_demo_mode_cache()\n"); 397c66ac9dbSNicholas Bellinger return -EINVAL; 398c66ac9dbSNicholas Bellinger } 399c66ac9dbSNicholas Bellinger if (!(tfo->tpg_check_demo_mode_write_protect)) { 400c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_check_demo_mode_write_protect()\n"); 401c66ac9dbSNicholas Bellinger return -EINVAL; 402c66ac9dbSNicholas Bellinger } 403c66ac9dbSNicholas Bellinger if (!(tfo->tpg_check_prod_mode_write_protect)) { 404c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_check_prod_mode_write_protect()\n"); 405c66ac9dbSNicholas Bellinger return -EINVAL; 406c66ac9dbSNicholas Bellinger } 407c66ac9dbSNicholas Bellinger if (!(tfo->tpg_alloc_fabric_acl)) { 408c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_alloc_fabric_acl()\n"); 409c66ac9dbSNicholas Bellinger return -EINVAL; 410c66ac9dbSNicholas Bellinger } 411c66ac9dbSNicholas Bellinger if (!(tfo->tpg_release_fabric_acl)) { 412c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_release_fabric_acl()\n"); 413c66ac9dbSNicholas Bellinger return -EINVAL; 414c66ac9dbSNicholas Bellinger } 415c66ac9dbSNicholas Bellinger if (!(tfo->tpg_get_inst_index)) { 416c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->tpg_get_inst_index()\n"); 417c66ac9dbSNicholas Bellinger return -EINVAL; 418c66ac9dbSNicholas Bellinger } 419c66ac9dbSNicholas Bellinger if (!(tfo->release_cmd_to_pool)) { 420c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->release_cmd_to_pool()\n"); 421c66ac9dbSNicholas Bellinger return -EINVAL; 422c66ac9dbSNicholas Bellinger } 423c66ac9dbSNicholas Bellinger if (!(tfo->release_cmd_direct)) { 424c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->release_cmd_direct()\n"); 425c66ac9dbSNicholas Bellinger return -EINVAL; 426c66ac9dbSNicholas Bellinger } 427c66ac9dbSNicholas Bellinger if (!(tfo->shutdown_session)) { 428c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->shutdown_session()\n"); 429c66ac9dbSNicholas Bellinger return -EINVAL; 430c66ac9dbSNicholas Bellinger } 431c66ac9dbSNicholas Bellinger if (!(tfo->close_session)) { 432c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->close_session()\n"); 433c66ac9dbSNicholas Bellinger return -EINVAL; 434c66ac9dbSNicholas Bellinger } 435c66ac9dbSNicholas Bellinger if (!(tfo->stop_session)) { 436c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->stop_session()\n"); 437c66ac9dbSNicholas Bellinger return -EINVAL; 438c66ac9dbSNicholas Bellinger } 439c66ac9dbSNicholas Bellinger if (!(tfo->fall_back_to_erl0)) { 440c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->fall_back_to_erl0()\n"); 441c66ac9dbSNicholas Bellinger return -EINVAL; 442c66ac9dbSNicholas Bellinger } 443c66ac9dbSNicholas Bellinger if (!(tfo->sess_logged_in)) { 444c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->sess_logged_in()\n"); 445c66ac9dbSNicholas Bellinger return -EINVAL; 446c66ac9dbSNicholas Bellinger } 447c66ac9dbSNicholas Bellinger if (!(tfo->sess_get_index)) { 448c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->sess_get_index()\n"); 449c66ac9dbSNicholas Bellinger return -EINVAL; 450c66ac9dbSNicholas Bellinger } 451c66ac9dbSNicholas Bellinger if (!(tfo->write_pending)) { 452c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->write_pending()\n"); 453c66ac9dbSNicholas Bellinger return -EINVAL; 454c66ac9dbSNicholas Bellinger } 455c66ac9dbSNicholas Bellinger if (!(tfo->write_pending_status)) { 456c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->write_pending_status()\n"); 457c66ac9dbSNicholas Bellinger return -EINVAL; 458c66ac9dbSNicholas Bellinger } 459c66ac9dbSNicholas Bellinger if (!(tfo->set_default_node_attributes)) { 460c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->set_default_node_attributes()\n"); 461c66ac9dbSNicholas Bellinger return -EINVAL; 462c66ac9dbSNicholas Bellinger } 463c66ac9dbSNicholas Bellinger if (!(tfo->get_task_tag)) { 464c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->get_task_tag()\n"); 465c66ac9dbSNicholas Bellinger return -EINVAL; 466c66ac9dbSNicholas Bellinger } 467c66ac9dbSNicholas Bellinger if (!(tfo->get_cmd_state)) { 468c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->get_cmd_state()\n"); 469c66ac9dbSNicholas Bellinger return -EINVAL; 470c66ac9dbSNicholas Bellinger } 471c66ac9dbSNicholas Bellinger if (!(tfo->new_cmd_failure)) { 472c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->new_cmd_failure()\n"); 473c66ac9dbSNicholas Bellinger return -EINVAL; 474c66ac9dbSNicholas Bellinger } 475c66ac9dbSNicholas Bellinger if (!(tfo->queue_data_in)) { 476c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->queue_data_in()\n"); 477c66ac9dbSNicholas Bellinger return -EINVAL; 478c66ac9dbSNicholas Bellinger } 479c66ac9dbSNicholas Bellinger if (!(tfo->queue_status)) { 480c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->queue_status()\n"); 481c66ac9dbSNicholas Bellinger return -EINVAL; 482c66ac9dbSNicholas Bellinger } 483c66ac9dbSNicholas Bellinger if (!(tfo->queue_tm_rsp)) { 484c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->queue_tm_rsp()\n"); 485c66ac9dbSNicholas Bellinger return -EINVAL; 486c66ac9dbSNicholas Bellinger } 487c66ac9dbSNicholas Bellinger if (!(tfo->set_fabric_sense_len)) { 488c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->set_fabric_sense_len()\n"); 489c66ac9dbSNicholas Bellinger return -EINVAL; 490c66ac9dbSNicholas Bellinger } 491c66ac9dbSNicholas Bellinger if (!(tfo->get_fabric_sense_len)) { 492c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->get_fabric_sense_len()\n"); 493c66ac9dbSNicholas Bellinger return -EINVAL; 494c66ac9dbSNicholas Bellinger } 495c66ac9dbSNicholas Bellinger if (!(tfo->is_state_remove)) { 496c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->is_state_remove()\n"); 497c66ac9dbSNicholas Bellinger return -EINVAL; 498c66ac9dbSNicholas Bellinger } 499c66ac9dbSNicholas Bellinger if (!(tfo->pack_lun)) { 500c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->pack_lun()\n"); 501c66ac9dbSNicholas Bellinger return -EINVAL; 502c66ac9dbSNicholas Bellinger } 503c66ac9dbSNicholas Bellinger /* 504c66ac9dbSNicholas Bellinger * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn() 505c66ac9dbSNicholas Bellinger * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in 506c66ac9dbSNicholas Bellinger * target_core_fabric_configfs.c WWN+TPG group context code. 507c66ac9dbSNicholas Bellinger */ 508c66ac9dbSNicholas Bellinger if (!(tfo->fabric_make_wwn)) { 509c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->fabric_make_wwn()\n"); 510c66ac9dbSNicholas Bellinger return -EINVAL; 511c66ac9dbSNicholas Bellinger } 512c66ac9dbSNicholas Bellinger if (!(tfo->fabric_drop_wwn)) { 513c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->fabric_drop_wwn()\n"); 514c66ac9dbSNicholas Bellinger return -EINVAL; 515c66ac9dbSNicholas Bellinger } 516c66ac9dbSNicholas Bellinger if (!(tfo->fabric_make_tpg)) { 517c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->fabric_make_tpg()\n"); 518c66ac9dbSNicholas Bellinger return -EINVAL; 519c66ac9dbSNicholas Bellinger } 520c66ac9dbSNicholas Bellinger if (!(tfo->fabric_drop_tpg)) { 521c66ac9dbSNicholas Bellinger printk(KERN_ERR "Missing tfo->fabric_drop_tpg()\n"); 522c66ac9dbSNicholas Bellinger return -EINVAL; 523c66ac9dbSNicholas Bellinger } 524c66ac9dbSNicholas Bellinger 525c66ac9dbSNicholas Bellinger return 0; 526c66ac9dbSNicholas Bellinger } 527c66ac9dbSNicholas Bellinger 528c66ac9dbSNicholas Bellinger /* 529c66ac9dbSNicholas Bellinger * Called 2nd from fabric module with returned parameter of 530c66ac9dbSNicholas Bellinger * struct target_fabric_configfs * from target_fabric_configfs_init(). 531c66ac9dbSNicholas Bellinger * 532c66ac9dbSNicholas Bellinger * Upon a successful registration, the new fabric's struct config_item is 533c66ac9dbSNicholas Bellinger * return. Also, a pointer to this struct is set in the passed 534c66ac9dbSNicholas Bellinger * struct target_fabric_configfs. 535c66ac9dbSNicholas Bellinger */ 536c66ac9dbSNicholas Bellinger int target_fabric_configfs_register( 537c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf) 538c66ac9dbSNicholas Bellinger { 539c66ac9dbSNicholas Bellinger struct config_group *su_group; 540c66ac9dbSNicholas Bellinger int ret; 541c66ac9dbSNicholas Bellinger 542c66ac9dbSNicholas Bellinger if (!(tf)) { 543c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate target_fabric_configfs" 544c66ac9dbSNicholas Bellinger " pointer\n"); 545c66ac9dbSNicholas Bellinger return -EINVAL; 546c66ac9dbSNicholas Bellinger } 547c66ac9dbSNicholas Bellinger if (!(tf->tf_subsys)) { 548c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to target struct config_subsystem" 549c66ac9dbSNicholas Bellinger " pointer\n"); 550c66ac9dbSNicholas Bellinger return -EINVAL; 551c66ac9dbSNicholas Bellinger } 552c66ac9dbSNicholas Bellinger su_group = &tf->tf_subsys->su_group; 553c66ac9dbSNicholas Bellinger if (!(su_group)) { 554c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate target struct config_group" 555c66ac9dbSNicholas Bellinger " pointer\n"); 556c66ac9dbSNicholas Bellinger return -EINVAL; 557c66ac9dbSNicholas Bellinger } 558c66ac9dbSNicholas Bellinger ret = target_fabric_tf_ops_check(tf); 559c66ac9dbSNicholas Bellinger if (ret < 0) 560c66ac9dbSNicholas Bellinger return ret; 561c66ac9dbSNicholas Bellinger 562c66ac9dbSNicholas Bellinger printk(KERN_INFO "<<<<<<<<<<<<<<<<<<<<<< END FABRIC API >>>>>>>>>>>>" 563c66ac9dbSNicholas Bellinger ">>>>>>>>>>\n"); 564c66ac9dbSNicholas Bellinger return 0; 565c66ac9dbSNicholas Bellinger } 566c66ac9dbSNicholas Bellinger EXPORT_SYMBOL(target_fabric_configfs_register); 567c66ac9dbSNicholas Bellinger 568c66ac9dbSNicholas Bellinger void target_fabric_configfs_deregister( 569c66ac9dbSNicholas Bellinger struct target_fabric_configfs *tf) 570c66ac9dbSNicholas Bellinger { 571c66ac9dbSNicholas Bellinger struct config_group *su_group; 572c66ac9dbSNicholas Bellinger struct configfs_subsystem *su; 573c66ac9dbSNicholas Bellinger 574c66ac9dbSNicholas Bellinger if (!(tf)) { 575c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate passed target_fabric_" 576c66ac9dbSNicholas Bellinger "configfs\n"); 577c66ac9dbSNicholas Bellinger return; 578c66ac9dbSNicholas Bellinger } 579c66ac9dbSNicholas Bellinger su = tf->tf_subsys; 580c66ac9dbSNicholas Bellinger if (!(su)) { 581c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate passed tf->tf_subsys" 582c66ac9dbSNicholas Bellinger " pointer\n"); 583c66ac9dbSNicholas Bellinger return; 584c66ac9dbSNicholas Bellinger } 585c66ac9dbSNicholas Bellinger su_group = &tf->tf_subsys->su_group; 586c66ac9dbSNicholas Bellinger if (!(su_group)) { 587c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate target struct config_group" 588c66ac9dbSNicholas Bellinger " pointer\n"); 589c66ac9dbSNicholas Bellinger return; 590c66ac9dbSNicholas Bellinger } 591c66ac9dbSNicholas Bellinger 592c66ac9dbSNicholas Bellinger printk(KERN_INFO "<<<<<<<<<<<<<<<<<<<<<< BEGIN FABRIC API >>>>>>>>>>" 593c66ac9dbSNicholas Bellinger ">>>>>>>>>>>>\n"); 594c66ac9dbSNicholas Bellinger mutex_lock(&g_tf_lock); 595c66ac9dbSNicholas Bellinger if (atomic_read(&tf->tf_access_cnt)) { 596c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 597c66ac9dbSNicholas Bellinger printk(KERN_ERR "Non zero tf->tf_access_cnt for fabric %s\n", 598c66ac9dbSNicholas Bellinger tf->tf_name); 599c66ac9dbSNicholas Bellinger BUG(); 600c66ac9dbSNicholas Bellinger } 601c66ac9dbSNicholas Bellinger list_del(&tf->tf_list); 602c66ac9dbSNicholas Bellinger mutex_unlock(&g_tf_lock); 603c66ac9dbSNicholas Bellinger 604c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: DEREGISTER -> Releasing tf:" 605c66ac9dbSNicholas Bellinger " %s\n", tf->tf_name); 606c66ac9dbSNicholas Bellinger tf->tf_module = NULL; 607c66ac9dbSNicholas Bellinger tf->tf_subsys = NULL; 608c66ac9dbSNicholas Bellinger kfree(tf); 609c66ac9dbSNicholas Bellinger 610c66ac9dbSNicholas Bellinger printk("<<<<<<<<<<<<<<<<<<<<<< END FABRIC API >>>>>>>>>>>>>>>>>" 611c66ac9dbSNicholas Bellinger ">>>>>\n"); 612c66ac9dbSNicholas Bellinger return; 613c66ac9dbSNicholas Bellinger } 614c66ac9dbSNicholas Bellinger EXPORT_SYMBOL(target_fabric_configfs_deregister); 615c66ac9dbSNicholas Bellinger 616c66ac9dbSNicholas Bellinger /*############################################################################## 617c66ac9dbSNicholas Bellinger // Stop functions called by external Target Fabrics Modules 618c66ac9dbSNicholas Bellinger //############################################################################*/ 619c66ac9dbSNicholas Bellinger 620c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_dev_attrib_cit */ 621c66ac9dbSNicholas Bellinger 622c66ac9dbSNicholas Bellinger #define DEF_DEV_ATTRIB_SHOW(_name) \ 623c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_show_attr_##_name( \ 624c66ac9dbSNicholas Bellinger struct se_dev_attrib *da, \ 625c66ac9dbSNicholas Bellinger char *page) \ 626c66ac9dbSNicholas Bellinger { \ 627c66ac9dbSNicholas Bellinger struct se_device *dev; \ 628c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = da->da_sub_dev; \ 629c66ac9dbSNicholas Bellinger ssize_t rb; \ 630c66ac9dbSNicholas Bellinger \ 631c66ac9dbSNicholas Bellinger spin_lock(&se_dev->se_dev_lock); \ 632c66ac9dbSNicholas Bellinger dev = se_dev->se_dev_ptr; \ 633c66ac9dbSNicholas Bellinger if (!(dev)) { \ 634c66ac9dbSNicholas Bellinger spin_unlock(&se_dev->se_dev_lock); \ 635c66ac9dbSNicholas Bellinger return -ENODEV; \ 636c66ac9dbSNicholas Bellinger } \ 637c66ac9dbSNicholas Bellinger rb = snprintf(page, PAGE_SIZE, "%u\n", (u32)DEV_ATTRIB(dev)->_name); \ 638c66ac9dbSNicholas Bellinger spin_unlock(&se_dev->se_dev_lock); \ 639c66ac9dbSNicholas Bellinger \ 640c66ac9dbSNicholas Bellinger return rb; \ 641c66ac9dbSNicholas Bellinger } 642c66ac9dbSNicholas Bellinger 643c66ac9dbSNicholas Bellinger #define DEF_DEV_ATTRIB_STORE(_name) \ 644c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_store_attr_##_name( \ 645c66ac9dbSNicholas Bellinger struct se_dev_attrib *da, \ 646c66ac9dbSNicholas Bellinger const char *page, \ 647c66ac9dbSNicholas Bellinger size_t count) \ 648c66ac9dbSNicholas Bellinger { \ 649c66ac9dbSNicholas Bellinger struct se_device *dev; \ 650c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = da->da_sub_dev; \ 651c66ac9dbSNicholas Bellinger unsigned long val; \ 652c66ac9dbSNicholas Bellinger int ret; \ 653c66ac9dbSNicholas Bellinger \ 654c66ac9dbSNicholas Bellinger spin_lock(&se_dev->se_dev_lock); \ 655c66ac9dbSNicholas Bellinger dev = se_dev->se_dev_ptr; \ 656c66ac9dbSNicholas Bellinger if (!(dev)) { \ 657c66ac9dbSNicholas Bellinger spin_unlock(&se_dev->se_dev_lock); \ 658c66ac9dbSNicholas Bellinger return -ENODEV; \ 659c66ac9dbSNicholas Bellinger } \ 660c66ac9dbSNicholas Bellinger ret = strict_strtoul(page, 0, &val); \ 661c66ac9dbSNicholas Bellinger if (ret < 0) { \ 662c66ac9dbSNicholas Bellinger spin_unlock(&se_dev->se_dev_lock); \ 663c66ac9dbSNicholas Bellinger printk(KERN_ERR "strict_strtoul() failed with" \ 664c66ac9dbSNicholas Bellinger " ret: %d\n", ret); \ 665c66ac9dbSNicholas Bellinger return -EINVAL; \ 666c66ac9dbSNicholas Bellinger } \ 667c66ac9dbSNicholas Bellinger ret = se_dev_set_##_name(dev, (u32)val); \ 668c66ac9dbSNicholas Bellinger spin_unlock(&se_dev->se_dev_lock); \ 669c66ac9dbSNicholas Bellinger \ 670c66ac9dbSNicholas Bellinger return (!ret) ? count : -EINVAL; \ 671c66ac9dbSNicholas Bellinger } 672c66ac9dbSNicholas Bellinger 673c66ac9dbSNicholas Bellinger #define DEF_DEV_ATTRIB(_name) \ 674c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB_SHOW(_name); \ 675c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB_STORE(_name); 676c66ac9dbSNicholas Bellinger 677c66ac9dbSNicholas Bellinger #define DEF_DEV_ATTRIB_RO(_name) \ 678c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB_SHOW(_name); 679c66ac9dbSNicholas Bellinger 680c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_STRUCT(target_core_dev_attrib, se_dev_attrib); 681c66ac9dbSNicholas Bellinger #define SE_DEV_ATTR(_name, _mode) \ 682c66ac9dbSNicholas Bellinger static struct target_core_dev_attrib_attribute \ 683c66ac9dbSNicholas Bellinger target_core_dev_attrib_##_name = \ 684c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR(_name, _mode, \ 685c66ac9dbSNicholas Bellinger target_core_dev_show_attr_##_name, \ 686c66ac9dbSNicholas Bellinger target_core_dev_store_attr_##_name); 687c66ac9dbSNicholas Bellinger 688c66ac9dbSNicholas Bellinger #define SE_DEV_ATTR_RO(_name); \ 689c66ac9dbSNicholas Bellinger static struct target_core_dev_attrib_attribute \ 690c66ac9dbSNicholas Bellinger target_core_dev_attrib_##_name = \ 691c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR_RO(_name, \ 692c66ac9dbSNicholas Bellinger target_core_dev_show_attr_##_name); 693c66ac9dbSNicholas Bellinger 694c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_dpo); 695c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_dpo, S_IRUGO | S_IWUSR); 696c66ac9dbSNicholas Bellinger 697c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_fua_write); 698c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_fua_write, S_IRUGO | S_IWUSR); 699c66ac9dbSNicholas Bellinger 700c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_fua_read); 701c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_fua_read, S_IRUGO | S_IWUSR); 702c66ac9dbSNicholas Bellinger 703c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_write_cache); 704c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_write_cache, S_IRUGO | S_IWUSR); 705c66ac9dbSNicholas Bellinger 706c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_ua_intlck_ctrl); 707c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR); 708c66ac9dbSNicholas Bellinger 709c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_tas); 710c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_tas, S_IRUGO | S_IWUSR); 711c66ac9dbSNicholas Bellinger 712c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_tpu); 713c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_tpu, S_IRUGO | S_IWUSR); 714c66ac9dbSNicholas Bellinger 715c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(emulate_tpws); 716c66ac9dbSNicholas Bellinger SE_DEV_ATTR(emulate_tpws, S_IRUGO | S_IWUSR); 717c66ac9dbSNicholas Bellinger 718c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(enforce_pr_isids); 719c66ac9dbSNicholas Bellinger SE_DEV_ATTR(enforce_pr_isids, S_IRUGO | S_IWUSR); 720c66ac9dbSNicholas Bellinger 721c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB_RO(hw_block_size); 722c66ac9dbSNicholas Bellinger SE_DEV_ATTR_RO(hw_block_size); 723c66ac9dbSNicholas Bellinger 724c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(block_size); 725c66ac9dbSNicholas Bellinger SE_DEV_ATTR(block_size, S_IRUGO | S_IWUSR); 726c66ac9dbSNicholas Bellinger 727c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB_RO(hw_max_sectors); 728c66ac9dbSNicholas Bellinger SE_DEV_ATTR_RO(hw_max_sectors); 729c66ac9dbSNicholas Bellinger 730c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(max_sectors); 731c66ac9dbSNicholas Bellinger SE_DEV_ATTR(max_sectors, S_IRUGO | S_IWUSR); 732c66ac9dbSNicholas Bellinger 733c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(optimal_sectors); 734c66ac9dbSNicholas Bellinger SE_DEV_ATTR(optimal_sectors, S_IRUGO | S_IWUSR); 735c66ac9dbSNicholas Bellinger 736c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB_RO(hw_queue_depth); 737c66ac9dbSNicholas Bellinger SE_DEV_ATTR_RO(hw_queue_depth); 738c66ac9dbSNicholas Bellinger 739c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(queue_depth); 740c66ac9dbSNicholas Bellinger SE_DEV_ATTR(queue_depth, S_IRUGO | S_IWUSR); 741c66ac9dbSNicholas Bellinger 742c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(task_timeout); 743c66ac9dbSNicholas Bellinger SE_DEV_ATTR(task_timeout, S_IRUGO | S_IWUSR); 744c66ac9dbSNicholas Bellinger 745c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(max_unmap_lba_count); 746c66ac9dbSNicholas Bellinger SE_DEV_ATTR(max_unmap_lba_count, S_IRUGO | S_IWUSR); 747c66ac9dbSNicholas Bellinger 748c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(max_unmap_block_desc_count); 749c66ac9dbSNicholas Bellinger SE_DEV_ATTR(max_unmap_block_desc_count, S_IRUGO | S_IWUSR); 750c66ac9dbSNicholas Bellinger 751c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(unmap_granularity); 752c66ac9dbSNicholas Bellinger SE_DEV_ATTR(unmap_granularity, S_IRUGO | S_IWUSR); 753c66ac9dbSNicholas Bellinger 754c66ac9dbSNicholas Bellinger DEF_DEV_ATTRIB(unmap_granularity_alignment); 755c66ac9dbSNicholas Bellinger SE_DEV_ATTR(unmap_granularity_alignment, S_IRUGO | S_IWUSR); 756c66ac9dbSNicholas Bellinger 757c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_OPS(target_core_dev_attrib, se_dev_attrib, da_group); 758c66ac9dbSNicholas Bellinger 759c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_attrib_attrs[] = { 760c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_dpo.attr, 761c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_fua_write.attr, 762c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_fua_read.attr, 763c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_write_cache.attr, 764c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_ua_intlck_ctrl.attr, 765c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_tas.attr, 766c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_tpu.attr, 767c66ac9dbSNicholas Bellinger &target_core_dev_attrib_emulate_tpws.attr, 768c66ac9dbSNicholas Bellinger &target_core_dev_attrib_enforce_pr_isids.attr, 769c66ac9dbSNicholas Bellinger &target_core_dev_attrib_hw_block_size.attr, 770c66ac9dbSNicholas Bellinger &target_core_dev_attrib_block_size.attr, 771c66ac9dbSNicholas Bellinger &target_core_dev_attrib_hw_max_sectors.attr, 772c66ac9dbSNicholas Bellinger &target_core_dev_attrib_max_sectors.attr, 773c66ac9dbSNicholas Bellinger &target_core_dev_attrib_optimal_sectors.attr, 774c66ac9dbSNicholas Bellinger &target_core_dev_attrib_hw_queue_depth.attr, 775c66ac9dbSNicholas Bellinger &target_core_dev_attrib_queue_depth.attr, 776c66ac9dbSNicholas Bellinger &target_core_dev_attrib_task_timeout.attr, 777c66ac9dbSNicholas Bellinger &target_core_dev_attrib_max_unmap_lba_count.attr, 778c66ac9dbSNicholas Bellinger &target_core_dev_attrib_max_unmap_block_desc_count.attr, 779c66ac9dbSNicholas Bellinger &target_core_dev_attrib_unmap_granularity.attr, 780c66ac9dbSNicholas Bellinger &target_core_dev_attrib_unmap_granularity_alignment.attr, 781c66ac9dbSNicholas Bellinger NULL, 782c66ac9dbSNicholas Bellinger }; 783c66ac9dbSNicholas Bellinger 784c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_dev_attrib_ops = { 785c66ac9dbSNicholas Bellinger .show_attribute = target_core_dev_attrib_attr_show, 786c66ac9dbSNicholas Bellinger .store_attribute = target_core_dev_attrib_attr_store, 787c66ac9dbSNicholas Bellinger }; 788c66ac9dbSNicholas Bellinger 789c66ac9dbSNicholas Bellinger static struct config_item_type target_core_dev_attrib_cit = { 790c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_dev_attrib_ops, 791c66ac9dbSNicholas Bellinger .ct_attrs = target_core_dev_attrib_attrs, 792c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 793c66ac9dbSNicholas Bellinger }; 794c66ac9dbSNicholas Bellinger 795c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_dev_attrib_cit */ 796c66ac9dbSNicholas Bellinger 797c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_dev_wwn_cit */ 798c66ac9dbSNicholas Bellinger 799c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_STRUCT(target_core_dev_wwn, t10_wwn); 800c66ac9dbSNicholas Bellinger #define SE_DEV_WWN_ATTR(_name, _mode) \ 801c66ac9dbSNicholas Bellinger static struct target_core_dev_wwn_attribute target_core_dev_wwn_##_name = \ 802c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR(_name, _mode, \ 803c66ac9dbSNicholas Bellinger target_core_dev_wwn_show_attr_##_name, \ 804c66ac9dbSNicholas Bellinger target_core_dev_wwn_store_attr_##_name); 805c66ac9dbSNicholas Bellinger 806c66ac9dbSNicholas Bellinger #define SE_DEV_WWN_ATTR_RO(_name); \ 807c66ac9dbSNicholas Bellinger do { \ 808c66ac9dbSNicholas Bellinger static struct target_core_dev_wwn_attribute \ 809c66ac9dbSNicholas Bellinger target_core_dev_wwn_##_name = \ 810c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR_RO(_name, \ 811c66ac9dbSNicholas Bellinger target_core_dev_wwn_show_attr_##_name); \ 812c66ac9dbSNicholas Bellinger } while (0); 813c66ac9dbSNicholas Bellinger 814c66ac9dbSNicholas Bellinger /* 815c66ac9dbSNicholas Bellinger * VPD page 0x80 Unit serial 816c66ac9dbSNicholas Bellinger */ 817c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_show_attr_vpd_unit_serial( 818c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, 819c66ac9dbSNicholas Bellinger char *page) 820c66ac9dbSNicholas Bellinger { 821c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = t10_wwn->t10_sub_dev; 822c66ac9dbSNicholas Bellinger struct se_device *dev; 823c66ac9dbSNicholas Bellinger 824c66ac9dbSNicholas Bellinger dev = se_dev->se_dev_ptr; 825c66ac9dbSNicholas Bellinger if (!(dev)) 826c66ac9dbSNicholas Bellinger return -ENODEV; 827c66ac9dbSNicholas Bellinger 828c66ac9dbSNicholas Bellinger return sprintf(page, "T10 VPD Unit Serial Number: %s\n", 829c66ac9dbSNicholas Bellinger &t10_wwn->unit_serial[0]); 830c66ac9dbSNicholas Bellinger } 831c66ac9dbSNicholas Bellinger 832c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_store_attr_vpd_unit_serial( 833c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, 834c66ac9dbSNicholas Bellinger const char *page, 835c66ac9dbSNicholas Bellinger size_t count) 836c66ac9dbSNicholas Bellinger { 837c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev = t10_wwn->t10_sub_dev; 838c66ac9dbSNicholas Bellinger struct se_device *dev; 839c66ac9dbSNicholas Bellinger unsigned char buf[INQUIRY_VPD_SERIAL_LEN]; 840c66ac9dbSNicholas Bellinger 841c66ac9dbSNicholas Bellinger /* 842c66ac9dbSNicholas Bellinger * If Linux/SCSI subsystem_api_t plugin got a VPD Unit Serial 843c66ac9dbSNicholas Bellinger * from the struct scsi_device level firmware, do not allow 844c66ac9dbSNicholas Bellinger * VPD Unit Serial to be emulated. 845c66ac9dbSNicholas Bellinger * 846c66ac9dbSNicholas Bellinger * Note this struct scsi_device could also be emulating VPD 847c66ac9dbSNicholas Bellinger * information from its drivers/scsi LLD. But for now we assume 848c66ac9dbSNicholas Bellinger * it is doing 'the right thing' wrt a world wide unique 849c66ac9dbSNicholas Bellinger * VPD Unit Serial Number that OS dependent multipath can depend on. 850c66ac9dbSNicholas Bellinger */ 851c66ac9dbSNicholas Bellinger if (su_dev->su_dev_flags & SDF_FIRMWARE_VPD_UNIT_SERIAL) { 852c66ac9dbSNicholas Bellinger printk(KERN_ERR "Underlying SCSI device firmware provided VPD" 853c66ac9dbSNicholas Bellinger " Unit Serial, ignoring request\n"); 854c66ac9dbSNicholas Bellinger return -EOPNOTSUPP; 855c66ac9dbSNicholas Bellinger } 856c66ac9dbSNicholas Bellinger 857c66ac9dbSNicholas Bellinger if ((strlen(page) + 1) > INQUIRY_VPD_SERIAL_LEN) { 858c66ac9dbSNicholas Bellinger printk(KERN_ERR "Emulated VPD Unit Serial exceeds" 859c66ac9dbSNicholas Bellinger " INQUIRY_VPD_SERIAL_LEN: %d\n", INQUIRY_VPD_SERIAL_LEN); 860c66ac9dbSNicholas Bellinger return -EOVERFLOW; 861c66ac9dbSNicholas Bellinger } 862c66ac9dbSNicholas Bellinger /* 863c66ac9dbSNicholas Bellinger * Check to see if any active $FABRIC_MOD exports exist. If they 864c66ac9dbSNicholas Bellinger * do exist, fail here as changing this information on the fly 865c66ac9dbSNicholas Bellinger * (underneath the initiator side OS dependent multipath code) 866c66ac9dbSNicholas Bellinger * could cause negative effects. 867c66ac9dbSNicholas Bellinger */ 868c66ac9dbSNicholas Bellinger dev = su_dev->se_dev_ptr; 869c66ac9dbSNicholas Bellinger if ((dev)) { 870c66ac9dbSNicholas Bellinger if (atomic_read(&dev->dev_export_obj.obj_access_count)) { 871c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to set VPD Unit Serial while" 872c66ac9dbSNicholas Bellinger " active %d $FABRIC_MOD exports exist\n", 873c66ac9dbSNicholas Bellinger atomic_read(&dev->dev_export_obj.obj_access_count)); 874c66ac9dbSNicholas Bellinger return -EINVAL; 875c66ac9dbSNicholas Bellinger } 876c66ac9dbSNicholas Bellinger } 877c66ac9dbSNicholas Bellinger /* 878c66ac9dbSNicholas Bellinger * This currently assumes ASCII encoding for emulated VPD Unit Serial. 879c66ac9dbSNicholas Bellinger * 880c66ac9dbSNicholas Bellinger * Also, strip any newline added from the userspace 881c66ac9dbSNicholas Bellinger * echo $UUID > $TARGET/$HBA/$STORAGE_OBJECT/wwn/vpd_unit_serial 882c66ac9dbSNicholas Bellinger */ 883c66ac9dbSNicholas Bellinger memset(buf, 0, INQUIRY_VPD_SERIAL_LEN); 884c66ac9dbSNicholas Bellinger snprintf(buf, INQUIRY_VPD_SERIAL_LEN, "%s", page); 885c66ac9dbSNicholas Bellinger snprintf(su_dev->t10_wwn.unit_serial, INQUIRY_VPD_SERIAL_LEN, 886c66ac9dbSNicholas Bellinger "%s", strstrip(buf)); 887c66ac9dbSNicholas Bellinger su_dev->su_dev_flags |= SDF_EMULATED_VPD_UNIT_SERIAL; 888c66ac9dbSNicholas Bellinger 889c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Set emulated VPD Unit Serial:" 890c66ac9dbSNicholas Bellinger " %s\n", su_dev->t10_wwn.unit_serial); 891c66ac9dbSNicholas Bellinger 892c66ac9dbSNicholas Bellinger return count; 893c66ac9dbSNicholas Bellinger } 894c66ac9dbSNicholas Bellinger 895c66ac9dbSNicholas Bellinger SE_DEV_WWN_ATTR(vpd_unit_serial, S_IRUGO | S_IWUSR); 896c66ac9dbSNicholas Bellinger 897c66ac9dbSNicholas Bellinger /* 898c66ac9dbSNicholas Bellinger * VPD page 0x83 Protocol Identifier 899c66ac9dbSNicholas Bellinger */ 900c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_show_attr_vpd_protocol_identifier( 901c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, 902c66ac9dbSNicholas Bellinger char *page) 903c66ac9dbSNicholas Bellinger { 904c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = t10_wwn->t10_sub_dev; 905c66ac9dbSNicholas Bellinger struct se_device *dev; 906c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; 907c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; 908c66ac9dbSNicholas Bellinger ssize_t len = 0; 909c66ac9dbSNicholas Bellinger 910c66ac9dbSNicholas Bellinger dev = se_dev->se_dev_ptr; 911c66ac9dbSNicholas Bellinger if (!(dev)) 912c66ac9dbSNicholas Bellinger return -ENODEV; 913c66ac9dbSNicholas Bellinger 914c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); 915c66ac9dbSNicholas Bellinger 916c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); 917c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { 918c66ac9dbSNicholas Bellinger if (!(vpd->protocol_identifier_set)) 919c66ac9dbSNicholas Bellinger continue; 920c66ac9dbSNicholas Bellinger 921c66ac9dbSNicholas Bellinger transport_dump_vpd_proto_id(vpd, buf, VPD_TMP_BUF_SIZE); 922c66ac9dbSNicholas Bellinger 923c66ac9dbSNicholas Bellinger if ((len + strlen(buf) > PAGE_SIZE)) 924c66ac9dbSNicholas Bellinger break; 925c66ac9dbSNicholas Bellinger 926c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 927c66ac9dbSNicholas Bellinger } 928c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); 929c66ac9dbSNicholas Bellinger 930c66ac9dbSNicholas Bellinger return len; 931c66ac9dbSNicholas Bellinger } 932c66ac9dbSNicholas Bellinger 933c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_store_attr_vpd_protocol_identifier( 934c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, 935c66ac9dbSNicholas Bellinger const char *page, 936c66ac9dbSNicholas Bellinger size_t count) 937c66ac9dbSNicholas Bellinger { 938c66ac9dbSNicholas Bellinger return -ENOSYS; 939c66ac9dbSNicholas Bellinger } 940c66ac9dbSNicholas Bellinger 941c66ac9dbSNicholas Bellinger SE_DEV_WWN_ATTR(vpd_protocol_identifier, S_IRUGO | S_IWUSR); 942c66ac9dbSNicholas Bellinger 943c66ac9dbSNicholas Bellinger /* 944c66ac9dbSNicholas Bellinger * Generic wrapper for dumping VPD identifiers by association. 945c66ac9dbSNicholas Bellinger */ 946c66ac9dbSNicholas Bellinger #define DEF_DEV_WWN_ASSOC_SHOW(_name, _assoc) \ 947c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_show_attr_##_name( \ 948c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, \ 949c66ac9dbSNicholas Bellinger char *page) \ 950c66ac9dbSNicholas Bellinger { \ 951c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = t10_wwn->t10_sub_dev; \ 952c66ac9dbSNicholas Bellinger struct se_device *dev; \ 953c66ac9dbSNicholas Bellinger struct t10_vpd *vpd; \ 954c66ac9dbSNicholas Bellinger unsigned char buf[VPD_TMP_BUF_SIZE]; \ 955c66ac9dbSNicholas Bellinger ssize_t len = 0; \ 956c66ac9dbSNicholas Bellinger \ 957c66ac9dbSNicholas Bellinger dev = se_dev->se_dev_ptr; \ 958c66ac9dbSNicholas Bellinger if (!(dev)) \ 959c66ac9dbSNicholas Bellinger return -ENODEV; \ 960c66ac9dbSNicholas Bellinger \ 961c66ac9dbSNicholas Bellinger spin_lock(&t10_wwn->t10_vpd_lock); \ 962c66ac9dbSNicholas Bellinger list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { \ 963c66ac9dbSNicholas Bellinger if (vpd->association != _assoc) \ 964c66ac9dbSNicholas Bellinger continue; \ 965c66ac9dbSNicholas Bellinger \ 966c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 967c66ac9dbSNicholas Bellinger transport_dump_vpd_assoc(vpd, buf, VPD_TMP_BUF_SIZE); \ 968c66ac9dbSNicholas Bellinger if ((len + strlen(buf) > PAGE_SIZE)) \ 969c66ac9dbSNicholas Bellinger break; \ 970c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 971c66ac9dbSNicholas Bellinger \ 972c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 973c66ac9dbSNicholas Bellinger transport_dump_vpd_ident_type(vpd, buf, VPD_TMP_BUF_SIZE); \ 974c66ac9dbSNicholas Bellinger if ((len + strlen(buf) > PAGE_SIZE)) \ 975c66ac9dbSNicholas Bellinger break; \ 976c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 977c66ac9dbSNicholas Bellinger \ 978c66ac9dbSNicholas Bellinger memset(buf, 0, VPD_TMP_BUF_SIZE); \ 979c66ac9dbSNicholas Bellinger transport_dump_vpd_ident(vpd, buf, VPD_TMP_BUF_SIZE); \ 980c66ac9dbSNicholas Bellinger if ((len + strlen(buf) > PAGE_SIZE)) \ 981c66ac9dbSNicholas Bellinger break; \ 982c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); \ 983c66ac9dbSNicholas Bellinger } \ 984c66ac9dbSNicholas Bellinger spin_unlock(&t10_wwn->t10_vpd_lock); \ 985c66ac9dbSNicholas Bellinger \ 986c66ac9dbSNicholas Bellinger return len; \ 987c66ac9dbSNicholas Bellinger } 988c66ac9dbSNicholas Bellinger 989c66ac9dbSNicholas Bellinger /* 990c66ac9dbSNicholas Bellinger * VPD page 0x83 Assoication: Logical Unit 991c66ac9dbSNicholas Bellinger */ 992c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_logical_unit, 0x00); 993c66ac9dbSNicholas Bellinger 994c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_logical_unit( 995c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, 996c66ac9dbSNicholas Bellinger const char *page, 997c66ac9dbSNicholas Bellinger size_t count) 998c66ac9dbSNicholas Bellinger { 999c66ac9dbSNicholas Bellinger return -ENOSYS; 1000c66ac9dbSNicholas Bellinger } 1001c66ac9dbSNicholas Bellinger 1002c66ac9dbSNicholas Bellinger SE_DEV_WWN_ATTR(vpd_assoc_logical_unit, S_IRUGO | S_IWUSR); 1003c66ac9dbSNicholas Bellinger 1004c66ac9dbSNicholas Bellinger /* 1005c66ac9dbSNicholas Bellinger * VPD page 0x83 Association: Target Port 1006c66ac9dbSNicholas Bellinger */ 1007c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_target_port, 0x10); 1008c66ac9dbSNicholas Bellinger 1009c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_target_port( 1010c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, 1011c66ac9dbSNicholas Bellinger const char *page, 1012c66ac9dbSNicholas Bellinger size_t count) 1013c66ac9dbSNicholas Bellinger { 1014c66ac9dbSNicholas Bellinger return -ENOSYS; 1015c66ac9dbSNicholas Bellinger } 1016c66ac9dbSNicholas Bellinger 1017c66ac9dbSNicholas Bellinger SE_DEV_WWN_ATTR(vpd_assoc_target_port, S_IRUGO | S_IWUSR); 1018c66ac9dbSNicholas Bellinger 1019c66ac9dbSNicholas Bellinger /* 1020c66ac9dbSNicholas Bellinger * VPD page 0x83 Association: SCSI Target Device 1021c66ac9dbSNicholas Bellinger */ 1022c66ac9dbSNicholas Bellinger DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_scsi_target_device, 0x20); 1023c66ac9dbSNicholas Bellinger 1024c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_scsi_target_device( 1025c66ac9dbSNicholas Bellinger struct t10_wwn *t10_wwn, 1026c66ac9dbSNicholas Bellinger const char *page, 1027c66ac9dbSNicholas Bellinger size_t count) 1028c66ac9dbSNicholas Bellinger { 1029c66ac9dbSNicholas Bellinger return -ENOSYS; 1030c66ac9dbSNicholas Bellinger } 1031c66ac9dbSNicholas Bellinger 1032c66ac9dbSNicholas Bellinger SE_DEV_WWN_ATTR(vpd_assoc_scsi_target_device, S_IRUGO | S_IWUSR); 1033c66ac9dbSNicholas Bellinger 1034c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_OPS(target_core_dev_wwn, t10_wwn, t10_wwn_group); 1035c66ac9dbSNicholas Bellinger 1036c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_wwn_attrs[] = { 1037c66ac9dbSNicholas Bellinger &target_core_dev_wwn_vpd_unit_serial.attr, 1038c66ac9dbSNicholas Bellinger &target_core_dev_wwn_vpd_protocol_identifier.attr, 1039c66ac9dbSNicholas Bellinger &target_core_dev_wwn_vpd_assoc_logical_unit.attr, 1040c66ac9dbSNicholas Bellinger &target_core_dev_wwn_vpd_assoc_target_port.attr, 1041c66ac9dbSNicholas Bellinger &target_core_dev_wwn_vpd_assoc_scsi_target_device.attr, 1042c66ac9dbSNicholas Bellinger NULL, 1043c66ac9dbSNicholas Bellinger }; 1044c66ac9dbSNicholas Bellinger 1045c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_dev_wwn_ops = { 1046c66ac9dbSNicholas Bellinger .show_attribute = target_core_dev_wwn_attr_show, 1047c66ac9dbSNicholas Bellinger .store_attribute = target_core_dev_wwn_attr_store, 1048c66ac9dbSNicholas Bellinger }; 1049c66ac9dbSNicholas Bellinger 1050c66ac9dbSNicholas Bellinger static struct config_item_type target_core_dev_wwn_cit = { 1051c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_dev_wwn_ops, 1052c66ac9dbSNicholas Bellinger .ct_attrs = target_core_dev_wwn_attrs, 1053c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 1054c66ac9dbSNicholas Bellinger }; 1055c66ac9dbSNicholas Bellinger 1056c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_dev_wwn_cit */ 1057c66ac9dbSNicholas Bellinger 1058c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_dev_pr_cit */ 1059c66ac9dbSNicholas Bellinger 1060c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_STRUCT(target_core_dev_pr, se_subsystem_dev); 1061c66ac9dbSNicholas Bellinger #define SE_DEV_PR_ATTR(_name, _mode) \ 1062c66ac9dbSNicholas Bellinger static struct target_core_dev_pr_attribute target_core_dev_pr_##_name = \ 1063c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR(_name, _mode, \ 1064c66ac9dbSNicholas Bellinger target_core_dev_pr_show_attr_##_name, \ 1065c66ac9dbSNicholas Bellinger target_core_dev_pr_store_attr_##_name); 1066c66ac9dbSNicholas Bellinger 1067c66ac9dbSNicholas Bellinger #define SE_DEV_PR_ATTR_RO(_name); \ 1068c66ac9dbSNicholas Bellinger static struct target_core_dev_pr_attribute target_core_dev_pr_##_name = \ 1069c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR_RO(_name, \ 1070c66ac9dbSNicholas Bellinger target_core_dev_pr_show_attr_##_name); 1071c66ac9dbSNicholas Bellinger 1072c66ac9dbSNicholas Bellinger /* 1073c66ac9dbSNicholas Bellinger * res_holder 1074c66ac9dbSNicholas Bellinger */ 1075c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_spc3_res( 1076c66ac9dbSNicholas Bellinger struct se_device *dev, 1077c66ac9dbSNicholas Bellinger char *page, 1078c66ac9dbSNicholas Bellinger ssize_t *len) 1079c66ac9dbSNicholas Bellinger { 1080c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1081c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1082c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1083c66ac9dbSNicholas Bellinger int prf_isid; 1084c66ac9dbSNicholas Bellinger 1085c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1086c66ac9dbSNicholas Bellinger 1087c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1088c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1089c66ac9dbSNicholas Bellinger if (!(pr_reg)) { 1090c66ac9dbSNicholas Bellinger *len += sprintf(page + *len, "No SPC-3 Reservation holder\n"); 1091c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1092c66ac9dbSNicholas Bellinger return *len; 1093c66ac9dbSNicholas Bellinger } 1094c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1095c66ac9dbSNicholas Bellinger prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0], 1096c66ac9dbSNicholas Bellinger PR_REG_ISID_ID_LEN); 1097c66ac9dbSNicholas Bellinger 1098c66ac9dbSNicholas Bellinger *len += sprintf(page + *len, "SPC-3 Reservation: %s Initiator: %s%s\n", 1099c66ac9dbSNicholas Bellinger TPG_TFO(se_nacl->se_tpg)->get_fabric_name(), 1100c66ac9dbSNicholas Bellinger se_nacl->initiatorname, (prf_isid) ? &i_buf[0] : ""); 1101c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1102c66ac9dbSNicholas Bellinger 1103c66ac9dbSNicholas Bellinger return *len; 1104c66ac9dbSNicholas Bellinger } 1105c66ac9dbSNicholas Bellinger 1106c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_spc2_res( 1107c66ac9dbSNicholas Bellinger struct se_device *dev, 1108c66ac9dbSNicholas Bellinger char *page, 1109c66ac9dbSNicholas Bellinger ssize_t *len) 1110c66ac9dbSNicholas Bellinger { 1111c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1112c66ac9dbSNicholas Bellinger 1113c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1114c66ac9dbSNicholas Bellinger se_nacl = dev->dev_reserved_node_acl; 1115c66ac9dbSNicholas Bellinger if (!(se_nacl)) { 1116c66ac9dbSNicholas Bellinger *len += sprintf(page + *len, "No SPC-2 Reservation holder\n"); 1117c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1118c66ac9dbSNicholas Bellinger return *len; 1119c66ac9dbSNicholas Bellinger } 1120c66ac9dbSNicholas Bellinger *len += sprintf(page + *len, "SPC-2 Reservation: %s Initiator: %s\n", 1121c66ac9dbSNicholas Bellinger TPG_TFO(se_nacl->se_tpg)->get_fabric_name(), 1122c66ac9dbSNicholas Bellinger se_nacl->initiatorname); 1123c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1124c66ac9dbSNicholas Bellinger 1125c66ac9dbSNicholas Bellinger return *len; 1126c66ac9dbSNicholas Bellinger } 1127c66ac9dbSNicholas Bellinger 1128c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_holder( 1129c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1130c66ac9dbSNicholas Bellinger char *page) 1131c66ac9dbSNicholas Bellinger { 1132c66ac9dbSNicholas Bellinger ssize_t len = 0; 1133c66ac9dbSNicholas Bellinger 1134c66ac9dbSNicholas Bellinger if (!(su_dev->se_dev_ptr)) 1135c66ac9dbSNicholas Bellinger return -ENODEV; 1136c66ac9dbSNicholas Bellinger 1137c66ac9dbSNicholas Bellinger switch (T10_RES(su_dev)->res_type) { 1138c66ac9dbSNicholas Bellinger case SPC3_PERSISTENT_RESERVATIONS: 1139c66ac9dbSNicholas Bellinger target_core_dev_pr_show_spc3_res(su_dev->se_dev_ptr, 1140c66ac9dbSNicholas Bellinger page, &len); 1141c66ac9dbSNicholas Bellinger break; 1142c66ac9dbSNicholas Bellinger case SPC2_RESERVATIONS: 1143c66ac9dbSNicholas Bellinger target_core_dev_pr_show_spc2_res(su_dev->se_dev_ptr, 1144c66ac9dbSNicholas Bellinger page, &len); 1145c66ac9dbSNicholas Bellinger break; 1146c66ac9dbSNicholas Bellinger case SPC_PASSTHROUGH: 1147c66ac9dbSNicholas Bellinger len += sprintf(page+len, "Passthrough\n"); 1148c66ac9dbSNicholas Bellinger break; 1149c66ac9dbSNicholas Bellinger default: 1150c66ac9dbSNicholas Bellinger len += sprintf(page+len, "Unknown\n"); 1151c66ac9dbSNicholas Bellinger break; 1152c66ac9dbSNicholas Bellinger } 1153c66ac9dbSNicholas Bellinger 1154c66ac9dbSNicholas Bellinger return len; 1155c66ac9dbSNicholas Bellinger } 1156c66ac9dbSNicholas Bellinger 1157c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_holder); 1158c66ac9dbSNicholas Bellinger 1159c66ac9dbSNicholas Bellinger /* 1160c66ac9dbSNicholas Bellinger * res_pr_all_tgt_pts 1161c66ac9dbSNicholas Bellinger */ 1162c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_pr_all_tgt_pts( 1163c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1164c66ac9dbSNicholas Bellinger char *page) 1165c66ac9dbSNicholas Bellinger { 1166c66ac9dbSNicholas Bellinger struct se_device *dev; 1167c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1168c66ac9dbSNicholas Bellinger ssize_t len = 0; 1169c66ac9dbSNicholas Bellinger 1170c66ac9dbSNicholas Bellinger dev = su_dev->se_dev_ptr; 1171c66ac9dbSNicholas Bellinger if (!(dev)) 1172c66ac9dbSNicholas Bellinger return -ENODEV; 1173c66ac9dbSNicholas Bellinger 1174c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1175c66ac9dbSNicholas Bellinger return len; 1176c66ac9dbSNicholas Bellinger 1177c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1178c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1179c66ac9dbSNicholas Bellinger if (!(pr_reg)) { 1180c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1181c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1182c66ac9dbSNicholas Bellinger return len; 1183c66ac9dbSNicholas Bellinger } 1184c66ac9dbSNicholas Bellinger /* 1185c66ac9dbSNicholas Bellinger * See All Target Ports (ALL_TG_PT) bit in spcr17, section 6.14.3 1186c66ac9dbSNicholas Bellinger * Basic PERSISTENT RESERVER OUT parameter list, page 290 1187c66ac9dbSNicholas Bellinger */ 1188c66ac9dbSNicholas Bellinger if (pr_reg->pr_reg_all_tg_pt) 1189c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: All Target" 1190c66ac9dbSNicholas Bellinger " Ports registration\n"); 1191c66ac9dbSNicholas Bellinger else 1192c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation: Single" 1193c66ac9dbSNicholas Bellinger " Target Port registration\n"); 1194c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1195c66ac9dbSNicholas Bellinger 1196c66ac9dbSNicholas Bellinger return len; 1197c66ac9dbSNicholas Bellinger } 1198c66ac9dbSNicholas Bellinger 1199c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_pr_all_tgt_pts); 1200c66ac9dbSNicholas Bellinger 1201c66ac9dbSNicholas Bellinger /* 1202c66ac9dbSNicholas Bellinger * res_pr_generation 1203c66ac9dbSNicholas Bellinger */ 1204c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_pr_generation( 1205c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1206c66ac9dbSNicholas Bellinger char *page) 1207c66ac9dbSNicholas Bellinger { 1208c66ac9dbSNicholas Bellinger if (!(su_dev->se_dev_ptr)) 1209c66ac9dbSNicholas Bellinger return -ENODEV; 1210c66ac9dbSNicholas Bellinger 1211c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1212c66ac9dbSNicholas Bellinger return 0; 1213c66ac9dbSNicholas Bellinger 1214c66ac9dbSNicholas Bellinger return sprintf(page, "0x%08x\n", T10_RES(su_dev)->pr_generation); 1215c66ac9dbSNicholas Bellinger } 1216c66ac9dbSNicholas Bellinger 1217c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_pr_generation); 1218c66ac9dbSNicholas Bellinger 1219c66ac9dbSNicholas Bellinger /* 1220c66ac9dbSNicholas Bellinger * res_pr_holder_tg_port 1221c66ac9dbSNicholas Bellinger */ 1222c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( 1223c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1224c66ac9dbSNicholas Bellinger char *page) 1225c66ac9dbSNicholas Bellinger { 1226c66ac9dbSNicholas Bellinger struct se_device *dev; 1227c66ac9dbSNicholas Bellinger struct se_node_acl *se_nacl; 1228c66ac9dbSNicholas Bellinger struct se_lun *lun; 1229c66ac9dbSNicholas Bellinger struct se_portal_group *se_tpg; 1230c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1231c66ac9dbSNicholas Bellinger struct target_core_fabric_ops *tfo; 1232c66ac9dbSNicholas Bellinger ssize_t len = 0; 1233c66ac9dbSNicholas Bellinger 1234c66ac9dbSNicholas Bellinger dev = su_dev->se_dev_ptr; 1235c66ac9dbSNicholas Bellinger if (!(dev)) 1236c66ac9dbSNicholas Bellinger return -ENODEV; 1237c66ac9dbSNicholas Bellinger 1238c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1239c66ac9dbSNicholas Bellinger return len; 1240c66ac9dbSNicholas Bellinger 1241c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1242c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1243c66ac9dbSNicholas Bellinger if (!(pr_reg)) { 1244c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1245c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1246c66ac9dbSNicholas Bellinger return len; 1247c66ac9dbSNicholas Bellinger } 1248c66ac9dbSNicholas Bellinger se_nacl = pr_reg->pr_reg_nacl; 1249c66ac9dbSNicholas Bellinger se_tpg = se_nacl->se_tpg; 1250c66ac9dbSNicholas Bellinger lun = pr_reg->pr_reg_tg_pt_lun; 1251c66ac9dbSNicholas Bellinger tfo = TPG_TFO(se_tpg); 1252c66ac9dbSNicholas Bellinger 1253c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: %s" 1254c66ac9dbSNicholas Bellinger " Target Node Endpoint: %s\n", tfo->get_fabric_name(), 1255c66ac9dbSNicholas Bellinger tfo->tpg_get_wwn(se_tpg)); 1256c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 Reservation: Relative Port" 1257c66ac9dbSNicholas Bellinger " Identifer Tag: %hu %s Portal Group Tag: %hu" 1258c66ac9dbSNicholas Bellinger " %s Logical Unit: %u\n", lun->lun_sep->sep_rtpi, 1259c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg), 1260c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), lun->unpacked_lun); 1261c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1262c66ac9dbSNicholas Bellinger 1263c66ac9dbSNicholas Bellinger return len; 1264c66ac9dbSNicholas Bellinger } 1265c66ac9dbSNicholas Bellinger 1266c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_pr_holder_tg_port); 1267c66ac9dbSNicholas Bellinger 1268c66ac9dbSNicholas Bellinger /* 1269c66ac9dbSNicholas Bellinger * res_pr_registered_i_pts 1270c66ac9dbSNicholas Bellinger */ 1271c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_pr_registered_i_pts( 1272c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1273c66ac9dbSNicholas Bellinger char *page) 1274c66ac9dbSNicholas Bellinger { 1275c66ac9dbSNicholas Bellinger struct target_core_fabric_ops *tfo; 1276c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1277c66ac9dbSNicholas Bellinger unsigned char buf[384]; 1278c66ac9dbSNicholas Bellinger char i_buf[PR_REG_ISID_ID_LEN]; 1279c66ac9dbSNicholas Bellinger ssize_t len = 0; 1280c66ac9dbSNicholas Bellinger int reg_count = 0, prf_isid; 1281c66ac9dbSNicholas Bellinger 1282c66ac9dbSNicholas Bellinger if (!(su_dev->se_dev_ptr)) 1283c66ac9dbSNicholas Bellinger return -ENODEV; 1284c66ac9dbSNicholas Bellinger 1285c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1286c66ac9dbSNicholas Bellinger return len; 1287c66ac9dbSNicholas Bellinger 1288c66ac9dbSNicholas Bellinger len += sprintf(page+len, "SPC-3 PR Registrations:\n"); 1289c66ac9dbSNicholas Bellinger 1290c66ac9dbSNicholas Bellinger spin_lock(&T10_RES(su_dev)->registration_lock); 1291c66ac9dbSNicholas Bellinger list_for_each_entry(pr_reg, &T10_RES(su_dev)->registration_list, 1292c66ac9dbSNicholas Bellinger pr_reg_list) { 1293c66ac9dbSNicholas Bellinger 1294c66ac9dbSNicholas Bellinger memset(buf, 0, 384); 1295c66ac9dbSNicholas Bellinger memset(i_buf, 0, PR_REG_ISID_ID_LEN); 1296c66ac9dbSNicholas Bellinger tfo = pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo; 1297c66ac9dbSNicholas Bellinger prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0], 1298c66ac9dbSNicholas Bellinger PR_REG_ISID_ID_LEN); 1299c66ac9dbSNicholas Bellinger sprintf(buf, "%s Node: %s%s Key: 0x%016Lx PRgen: 0x%08x\n", 1300c66ac9dbSNicholas Bellinger tfo->get_fabric_name(), 1301c66ac9dbSNicholas Bellinger pr_reg->pr_reg_nacl->initiatorname, (prf_isid) ? 1302c66ac9dbSNicholas Bellinger &i_buf[0] : "", pr_reg->pr_res_key, 1303c66ac9dbSNicholas Bellinger pr_reg->pr_res_generation); 1304c66ac9dbSNicholas Bellinger 1305c66ac9dbSNicholas Bellinger if ((len + strlen(buf) > PAGE_SIZE)) 1306c66ac9dbSNicholas Bellinger break; 1307c66ac9dbSNicholas Bellinger 1308c66ac9dbSNicholas Bellinger len += sprintf(page+len, "%s", buf); 1309c66ac9dbSNicholas Bellinger reg_count++; 1310c66ac9dbSNicholas Bellinger } 1311c66ac9dbSNicholas Bellinger spin_unlock(&T10_RES(su_dev)->registration_lock); 1312c66ac9dbSNicholas Bellinger 1313c66ac9dbSNicholas Bellinger if (!(reg_count)) 1314c66ac9dbSNicholas Bellinger len += sprintf(page+len, "None\n"); 1315c66ac9dbSNicholas Bellinger 1316c66ac9dbSNicholas Bellinger return len; 1317c66ac9dbSNicholas Bellinger } 1318c66ac9dbSNicholas Bellinger 1319c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_pr_registered_i_pts); 1320c66ac9dbSNicholas Bellinger 1321c66ac9dbSNicholas Bellinger /* 1322c66ac9dbSNicholas Bellinger * res_pr_type 1323c66ac9dbSNicholas Bellinger */ 1324c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_pr_type( 1325c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1326c66ac9dbSNicholas Bellinger char *page) 1327c66ac9dbSNicholas Bellinger { 1328c66ac9dbSNicholas Bellinger struct se_device *dev; 1329c66ac9dbSNicholas Bellinger struct t10_pr_registration *pr_reg; 1330c66ac9dbSNicholas Bellinger ssize_t len = 0; 1331c66ac9dbSNicholas Bellinger 1332c66ac9dbSNicholas Bellinger dev = su_dev->se_dev_ptr; 1333c66ac9dbSNicholas Bellinger if (!(dev)) 1334c66ac9dbSNicholas Bellinger return -ENODEV; 1335c66ac9dbSNicholas Bellinger 1336c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1337c66ac9dbSNicholas Bellinger return len; 1338c66ac9dbSNicholas Bellinger 1339c66ac9dbSNicholas Bellinger spin_lock(&dev->dev_reservation_lock); 1340c66ac9dbSNicholas Bellinger pr_reg = dev->dev_pr_res_holder; 1341c66ac9dbSNicholas Bellinger if (!(pr_reg)) { 1342c66ac9dbSNicholas Bellinger len = sprintf(page, "No SPC-3 Reservation holder\n"); 1343c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1344c66ac9dbSNicholas Bellinger return len; 1345c66ac9dbSNicholas Bellinger } 1346c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC-3 Reservation Type: %s\n", 1347c66ac9dbSNicholas Bellinger core_scsi3_pr_dump_type(pr_reg->pr_res_type)); 1348c66ac9dbSNicholas Bellinger spin_unlock(&dev->dev_reservation_lock); 1349c66ac9dbSNicholas Bellinger 1350c66ac9dbSNicholas Bellinger return len; 1351c66ac9dbSNicholas Bellinger } 1352c66ac9dbSNicholas Bellinger 1353c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_pr_type); 1354c66ac9dbSNicholas Bellinger 1355c66ac9dbSNicholas Bellinger /* 1356c66ac9dbSNicholas Bellinger * res_type 1357c66ac9dbSNicholas Bellinger */ 1358c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_type( 1359c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1360c66ac9dbSNicholas Bellinger char *page) 1361c66ac9dbSNicholas Bellinger { 1362c66ac9dbSNicholas Bellinger ssize_t len = 0; 1363c66ac9dbSNicholas Bellinger 1364c66ac9dbSNicholas Bellinger if (!(su_dev->se_dev_ptr)) 1365c66ac9dbSNicholas Bellinger return -ENODEV; 1366c66ac9dbSNicholas Bellinger 1367c66ac9dbSNicholas Bellinger switch (T10_RES(su_dev)->res_type) { 1368c66ac9dbSNicholas Bellinger case SPC3_PERSISTENT_RESERVATIONS: 1369c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC3_PERSISTENT_RESERVATIONS\n"); 1370c66ac9dbSNicholas Bellinger break; 1371c66ac9dbSNicholas Bellinger case SPC2_RESERVATIONS: 1372c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC2_RESERVATIONS\n"); 1373c66ac9dbSNicholas Bellinger break; 1374c66ac9dbSNicholas Bellinger case SPC_PASSTHROUGH: 1375c66ac9dbSNicholas Bellinger len = sprintf(page, "SPC_PASSTHROUGH\n"); 1376c66ac9dbSNicholas Bellinger break; 1377c66ac9dbSNicholas Bellinger default: 1378c66ac9dbSNicholas Bellinger len = sprintf(page, "UNKNOWN\n"); 1379c66ac9dbSNicholas Bellinger break; 1380c66ac9dbSNicholas Bellinger } 1381c66ac9dbSNicholas Bellinger 1382c66ac9dbSNicholas Bellinger return len; 1383c66ac9dbSNicholas Bellinger } 1384c66ac9dbSNicholas Bellinger 1385c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_type); 1386c66ac9dbSNicholas Bellinger 1387c66ac9dbSNicholas Bellinger /* 1388c66ac9dbSNicholas Bellinger * res_aptpl_active 1389c66ac9dbSNicholas Bellinger */ 1390c66ac9dbSNicholas Bellinger 1391c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_aptpl_active( 1392c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1393c66ac9dbSNicholas Bellinger char *page) 1394c66ac9dbSNicholas Bellinger { 1395c66ac9dbSNicholas Bellinger if (!(su_dev->se_dev_ptr)) 1396c66ac9dbSNicholas Bellinger return -ENODEV; 1397c66ac9dbSNicholas Bellinger 1398c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1399c66ac9dbSNicholas Bellinger return 0; 1400c66ac9dbSNicholas Bellinger 1401c66ac9dbSNicholas Bellinger return sprintf(page, "APTPL Bit Status: %s\n", 1402c66ac9dbSNicholas Bellinger (T10_RES(su_dev)->pr_aptpl_active) ? "Activated" : "Disabled"); 1403c66ac9dbSNicholas Bellinger } 1404c66ac9dbSNicholas Bellinger 1405c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR_RO(res_aptpl_active); 1406c66ac9dbSNicholas Bellinger 1407c66ac9dbSNicholas Bellinger /* 1408c66ac9dbSNicholas Bellinger * res_aptpl_metadata 1409c66ac9dbSNicholas Bellinger */ 1410c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_show_attr_res_aptpl_metadata( 1411c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1412c66ac9dbSNicholas Bellinger char *page) 1413c66ac9dbSNicholas Bellinger { 1414c66ac9dbSNicholas Bellinger if (!(su_dev->se_dev_ptr)) 1415c66ac9dbSNicholas Bellinger return -ENODEV; 1416c66ac9dbSNicholas Bellinger 1417c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1418c66ac9dbSNicholas Bellinger return 0; 1419c66ac9dbSNicholas Bellinger 1420c66ac9dbSNicholas Bellinger return sprintf(page, "Ready to process PR APTPL metadata..\n"); 1421c66ac9dbSNicholas Bellinger } 1422c66ac9dbSNicholas Bellinger 1423c66ac9dbSNicholas Bellinger enum { 1424c66ac9dbSNicholas Bellinger Opt_initiator_fabric, Opt_initiator_node, Opt_initiator_sid, 1425c66ac9dbSNicholas Bellinger Opt_sa_res_key, Opt_res_holder, Opt_res_type, Opt_res_scope, 1426c66ac9dbSNicholas Bellinger Opt_res_all_tg_pt, Opt_mapped_lun, Opt_target_fabric, 1427c66ac9dbSNicholas Bellinger Opt_target_node, Opt_tpgt, Opt_port_rtpi, Opt_target_lun, Opt_err 1428c66ac9dbSNicholas Bellinger }; 1429c66ac9dbSNicholas Bellinger 1430c66ac9dbSNicholas Bellinger static match_table_t tokens = { 1431c66ac9dbSNicholas Bellinger {Opt_initiator_fabric, "initiator_fabric=%s"}, 1432c66ac9dbSNicholas Bellinger {Opt_initiator_node, "initiator_node=%s"}, 1433c66ac9dbSNicholas Bellinger {Opt_initiator_sid, "initiator_sid=%s"}, 1434c66ac9dbSNicholas Bellinger {Opt_sa_res_key, "sa_res_key=%s"}, 1435c66ac9dbSNicholas Bellinger {Opt_res_holder, "res_holder=%d"}, 1436c66ac9dbSNicholas Bellinger {Opt_res_type, "res_type=%d"}, 1437c66ac9dbSNicholas Bellinger {Opt_res_scope, "res_scope=%d"}, 1438c66ac9dbSNicholas Bellinger {Opt_res_all_tg_pt, "res_all_tg_pt=%d"}, 1439c66ac9dbSNicholas Bellinger {Opt_mapped_lun, "mapped_lun=%d"}, 1440c66ac9dbSNicholas Bellinger {Opt_target_fabric, "target_fabric=%s"}, 1441c66ac9dbSNicholas Bellinger {Opt_target_node, "target_node=%s"}, 1442c66ac9dbSNicholas Bellinger {Opt_tpgt, "tpgt=%d"}, 1443c66ac9dbSNicholas Bellinger {Opt_port_rtpi, "port_rtpi=%d"}, 1444c66ac9dbSNicholas Bellinger {Opt_target_lun, "target_lun=%d"}, 1445c66ac9dbSNicholas Bellinger {Opt_err, NULL} 1446c66ac9dbSNicholas Bellinger }; 1447c66ac9dbSNicholas Bellinger 1448c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( 1449c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev, 1450c66ac9dbSNicholas Bellinger const char *page, 1451c66ac9dbSNicholas Bellinger size_t count) 1452c66ac9dbSNicholas Bellinger { 1453c66ac9dbSNicholas Bellinger struct se_device *dev; 14546d180253SJesper Juhl unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; 14556d180253SJesper Juhl unsigned char *t_fabric = NULL, *t_port = NULL; 1456c66ac9dbSNicholas Bellinger char *orig, *ptr, *arg_p, *opts; 1457c66ac9dbSNicholas Bellinger substring_t args[MAX_OPT_ARGS]; 1458c66ac9dbSNicholas Bellinger unsigned long long tmp_ll; 1459c66ac9dbSNicholas Bellinger u64 sa_res_key = 0; 1460c66ac9dbSNicholas Bellinger u32 mapped_lun = 0, target_lun = 0; 1461c66ac9dbSNicholas Bellinger int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token; 1462c66ac9dbSNicholas Bellinger u16 port_rpti = 0, tpgt = 0; 1463c66ac9dbSNicholas Bellinger u8 type = 0, scope; 1464c66ac9dbSNicholas Bellinger 1465c66ac9dbSNicholas Bellinger dev = su_dev->se_dev_ptr; 1466c66ac9dbSNicholas Bellinger if (!(dev)) 1467c66ac9dbSNicholas Bellinger return -ENODEV; 1468c66ac9dbSNicholas Bellinger 1469c66ac9dbSNicholas Bellinger if (T10_RES(su_dev)->res_type != SPC3_PERSISTENT_RESERVATIONS) 1470c66ac9dbSNicholas Bellinger return 0; 1471c66ac9dbSNicholas Bellinger 1472c66ac9dbSNicholas Bellinger if (atomic_read(&dev->dev_export_obj.obj_access_count)) { 1473c66ac9dbSNicholas Bellinger printk(KERN_INFO "Unable to process APTPL metadata while" 1474c66ac9dbSNicholas Bellinger " active fabric exports exist\n"); 1475c66ac9dbSNicholas Bellinger return -EINVAL; 1476c66ac9dbSNicholas Bellinger } 1477c66ac9dbSNicholas Bellinger 1478c66ac9dbSNicholas Bellinger opts = kstrdup(page, GFP_KERNEL); 1479c66ac9dbSNicholas Bellinger if (!opts) 1480c66ac9dbSNicholas Bellinger return -ENOMEM; 1481c66ac9dbSNicholas Bellinger 1482c66ac9dbSNicholas Bellinger orig = opts; 1483c66ac9dbSNicholas Bellinger while ((ptr = strsep(&opts, ",")) != NULL) { 1484c66ac9dbSNicholas Bellinger if (!*ptr) 1485c66ac9dbSNicholas Bellinger continue; 1486c66ac9dbSNicholas Bellinger 1487c66ac9dbSNicholas Bellinger token = match_token(ptr, tokens, args); 1488c66ac9dbSNicholas Bellinger switch (token) { 1489c66ac9dbSNicholas Bellinger case Opt_initiator_fabric: 1490c66ac9dbSNicholas Bellinger i_fabric = match_strdup(&args[0]); 14916d180253SJesper Juhl if (!i_fabric) { 14926d180253SJesper Juhl ret = -ENOMEM; 14936d180253SJesper Juhl goto out; 14946d180253SJesper Juhl } 1495c66ac9dbSNicholas Bellinger break; 1496c66ac9dbSNicholas Bellinger case Opt_initiator_node: 1497c66ac9dbSNicholas Bellinger i_port = match_strdup(&args[0]); 14986d180253SJesper Juhl if (!i_port) { 14996d180253SJesper Juhl ret = -ENOMEM; 15006d180253SJesper Juhl goto out; 15016d180253SJesper Juhl } 1502c66ac9dbSNicholas Bellinger if (strlen(i_port) > PR_APTPL_MAX_IPORT_LEN) { 1503c66ac9dbSNicholas Bellinger printk(KERN_ERR "APTPL metadata initiator_node=" 1504c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_IPORT_LEN: %d\n", 1505c66ac9dbSNicholas Bellinger PR_APTPL_MAX_IPORT_LEN); 1506c66ac9dbSNicholas Bellinger ret = -EINVAL; 1507c66ac9dbSNicholas Bellinger break; 1508c66ac9dbSNicholas Bellinger } 1509c66ac9dbSNicholas Bellinger break; 1510c66ac9dbSNicholas Bellinger case Opt_initiator_sid: 1511c66ac9dbSNicholas Bellinger isid = match_strdup(&args[0]); 15126d180253SJesper Juhl if (!isid) { 15136d180253SJesper Juhl ret = -ENOMEM; 15146d180253SJesper Juhl goto out; 15156d180253SJesper Juhl } 1516c66ac9dbSNicholas Bellinger if (strlen(isid) > PR_REG_ISID_LEN) { 1517c66ac9dbSNicholas Bellinger printk(KERN_ERR "APTPL metadata initiator_isid" 1518c66ac9dbSNicholas Bellinger "= exceeds PR_REG_ISID_LEN: %d\n", 1519c66ac9dbSNicholas Bellinger PR_REG_ISID_LEN); 1520c66ac9dbSNicholas Bellinger ret = -EINVAL; 1521c66ac9dbSNicholas Bellinger break; 1522c66ac9dbSNicholas Bellinger } 1523c66ac9dbSNicholas Bellinger break; 1524c66ac9dbSNicholas Bellinger case Opt_sa_res_key: 1525c66ac9dbSNicholas Bellinger arg_p = match_strdup(&args[0]); 15266d180253SJesper Juhl if (!arg_p) { 15276d180253SJesper Juhl ret = -ENOMEM; 15286d180253SJesper Juhl goto out; 15296d180253SJesper Juhl } 1530c66ac9dbSNicholas Bellinger ret = strict_strtoull(arg_p, 0, &tmp_ll); 1531c66ac9dbSNicholas Bellinger if (ret < 0) { 1532c66ac9dbSNicholas Bellinger printk(KERN_ERR "strict_strtoull() failed for" 1533c66ac9dbSNicholas Bellinger " sa_res_key=\n"); 1534c66ac9dbSNicholas Bellinger goto out; 1535c66ac9dbSNicholas Bellinger } 1536c66ac9dbSNicholas Bellinger sa_res_key = (u64)tmp_ll; 1537c66ac9dbSNicholas Bellinger break; 1538c66ac9dbSNicholas Bellinger /* 1539c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Reservation 1540c66ac9dbSNicholas Bellinger */ 1541c66ac9dbSNicholas Bellinger case Opt_res_holder: 1542c66ac9dbSNicholas Bellinger match_int(args, &arg); 1543c66ac9dbSNicholas Bellinger res_holder = arg; 1544c66ac9dbSNicholas Bellinger break; 1545c66ac9dbSNicholas Bellinger case Opt_res_type: 1546c66ac9dbSNicholas Bellinger match_int(args, &arg); 1547c66ac9dbSNicholas Bellinger type = (u8)arg; 1548c66ac9dbSNicholas Bellinger break; 1549c66ac9dbSNicholas Bellinger case Opt_res_scope: 1550c66ac9dbSNicholas Bellinger match_int(args, &arg); 1551c66ac9dbSNicholas Bellinger scope = (u8)arg; 1552c66ac9dbSNicholas Bellinger break; 1553c66ac9dbSNicholas Bellinger case Opt_res_all_tg_pt: 1554c66ac9dbSNicholas Bellinger match_int(args, &arg); 1555c66ac9dbSNicholas Bellinger all_tg_pt = (int)arg; 1556c66ac9dbSNicholas Bellinger break; 1557c66ac9dbSNicholas Bellinger case Opt_mapped_lun: 1558c66ac9dbSNicholas Bellinger match_int(args, &arg); 1559c66ac9dbSNicholas Bellinger mapped_lun = (u32)arg; 1560c66ac9dbSNicholas Bellinger break; 1561c66ac9dbSNicholas Bellinger /* 1562c66ac9dbSNicholas Bellinger * PR APTPL Metadata for Target Port 1563c66ac9dbSNicholas Bellinger */ 1564c66ac9dbSNicholas Bellinger case Opt_target_fabric: 1565c66ac9dbSNicholas Bellinger t_fabric = match_strdup(&args[0]); 15666d180253SJesper Juhl if (!t_fabric) { 15676d180253SJesper Juhl ret = -ENOMEM; 15686d180253SJesper Juhl goto out; 15696d180253SJesper Juhl } 1570c66ac9dbSNicholas Bellinger break; 1571c66ac9dbSNicholas Bellinger case Opt_target_node: 1572c66ac9dbSNicholas Bellinger t_port = match_strdup(&args[0]); 15736d180253SJesper Juhl if (!t_port) { 15746d180253SJesper Juhl ret = -ENOMEM; 15756d180253SJesper Juhl goto out; 15766d180253SJesper Juhl } 1577c66ac9dbSNicholas Bellinger if (strlen(t_port) > PR_APTPL_MAX_TPORT_LEN) { 1578c66ac9dbSNicholas Bellinger printk(KERN_ERR "APTPL metadata target_node=" 1579c66ac9dbSNicholas Bellinger " exceeds PR_APTPL_MAX_TPORT_LEN: %d\n", 1580c66ac9dbSNicholas Bellinger PR_APTPL_MAX_TPORT_LEN); 1581c66ac9dbSNicholas Bellinger ret = -EINVAL; 1582c66ac9dbSNicholas Bellinger break; 1583c66ac9dbSNicholas Bellinger } 1584c66ac9dbSNicholas Bellinger break; 1585c66ac9dbSNicholas Bellinger case Opt_tpgt: 1586c66ac9dbSNicholas Bellinger match_int(args, &arg); 1587c66ac9dbSNicholas Bellinger tpgt = (u16)arg; 1588c66ac9dbSNicholas Bellinger break; 1589c66ac9dbSNicholas Bellinger case Opt_port_rtpi: 1590c66ac9dbSNicholas Bellinger match_int(args, &arg); 1591c66ac9dbSNicholas Bellinger port_rpti = (u16)arg; 1592c66ac9dbSNicholas Bellinger break; 1593c66ac9dbSNicholas Bellinger case Opt_target_lun: 1594c66ac9dbSNicholas Bellinger match_int(args, &arg); 1595c66ac9dbSNicholas Bellinger target_lun = (u32)arg; 1596c66ac9dbSNicholas Bellinger break; 1597c66ac9dbSNicholas Bellinger default: 1598c66ac9dbSNicholas Bellinger break; 1599c66ac9dbSNicholas Bellinger } 1600c66ac9dbSNicholas Bellinger } 1601c66ac9dbSNicholas Bellinger 1602c66ac9dbSNicholas Bellinger if (!(i_port) || !(t_port) || !(sa_res_key)) { 1603c66ac9dbSNicholas Bellinger printk(KERN_ERR "Illegal parameters for APTPL registration\n"); 1604c66ac9dbSNicholas Bellinger ret = -EINVAL; 1605c66ac9dbSNicholas Bellinger goto out; 1606c66ac9dbSNicholas Bellinger } 1607c66ac9dbSNicholas Bellinger 1608c66ac9dbSNicholas Bellinger if (res_holder && !(type)) { 1609c66ac9dbSNicholas Bellinger printk(KERN_ERR "Illegal PR type: 0x%02x for reservation" 1610c66ac9dbSNicholas Bellinger " holder\n", type); 1611c66ac9dbSNicholas Bellinger ret = -EINVAL; 1612c66ac9dbSNicholas Bellinger goto out; 1613c66ac9dbSNicholas Bellinger } 1614c66ac9dbSNicholas Bellinger 1615c66ac9dbSNicholas Bellinger ret = core_scsi3_alloc_aptpl_registration(T10_RES(su_dev), sa_res_key, 1616c66ac9dbSNicholas Bellinger i_port, isid, mapped_lun, t_port, tpgt, target_lun, 1617c66ac9dbSNicholas Bellinger res_holder, all_tg_pt, type); 1618c66ac9dbSNicholas Bellinger out: 16196d180253SJesper Juhl kfree(i_fabric); 16206d180253SJesper Juhl kfree(i_port); 16216d180253SJesper Juhl kfree(isid); 16226d180253SJesper Juhl kfree(t_fabric); 16236d180253SJesper Juhl kfree(t_port); 1624c66ac9dbSNicholas Bellinger kfree(orig); 1625c66ac9dbSNicholas Bellinger return (ret == 0) ? count : ret; 1626c66ac9dbSNicholas Bellinger } 1627c66ac9dbSNicholas Bellinger 1628c66ac9dbSNicholas Bellinger SE_DEV_PR_ATTR(res_aptpl_metadata, S_IRUGO | S_IWUSR); 1629c66ac9dbSNicholas Bellinger 1630c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_OPS(target_core_dev_pr, se_subsystem_dev, se_dev_pr_group); 1631c66ac9dbSNicholas Bellinger 1632c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_dev_pr_attrs[] = { 1633c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_holder.attr, 1634c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_pr_all_tgt_pts.attr, 1635c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_pr_generation.attr, 1636c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_pr_holder_tg_port.attr, 1637c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_pr_registered_i_pts.attr, 1638c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_pr_type.attr, 1639c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_type.attr, 1640c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_aptpl_active.attr, 1641c66ac9dbSNicholas Bellinger &target_core_dev_pr_res_aptpl_metadata.attr, 1642c66ac9dbSNicholas Bellinger NULL, 1643c66ac9dbSNicholas Bellinger }; 1644c66ac9dbSNicholas Bellinger 1645c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_dev_pr_ops = { 1646c66ac9dbSNicholas Bellinger .show_attribute = target_core_dev_pr_attr_show, 1647c66ac9dbSNicholas Bellinger .store_attribute = target_core_dev_pr_attr_store, 1648c66ac9dbSNicholas Bellinger }; 1649c66ac9dbSNicholas Bellinger 1650c66ac9dbSNicholas Bellinger static struct config_item_type target_core_dev_pr_cit = { 1651c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_dev_pr_ops, 1652c66ac9dbSNicholas Bellinger .ct_attrs = target_core_dev_pr_attrs, 1653c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 1654c66ac9dbSNicholas Bellinger }; 1655c66ac9dbSNicholas Bellinger 1656c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_dev_pr_cit */ 1657c66ac9dbSNicholas Bellinger 1658c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_dev_cit */ 1659c66ac9dbSNicholas Bellinger 1660c66ac9dbSNicholas Bellinger static ssize_t target_core_show_dev_info(void *p, char *page) 1661c66ac9dbSNicholas Bellinger { 1662c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = (struct se_subsystem_dev *)p; 1663c66ac9dbSNicholas Bellinger struct se_hba *hba = se_dev->se_dev_hba; 1664c66ac9dbSNicholas Bellinger struct se_subsystem_api *t = hba->transport; 1665c66ac9dbSNicholas Bellinger int bl = 0; 1666c66ac9dbSNicholas Bellinger ssize_t read_bytes = 0; 1667c66ac9dbSNicholas Bellinger 1668c66ac9dbSNicholas Bellinger if (!(se_dev->se_dev_ptr)) 1669c66ac9dbSNicholas Bellinger return -ENODEV; 1670c66ac9dbSNicholas Bellinger 1671c66ac9dbSNicholas Bellinger transport_dump_dev_state(se_dev->se_dev_ptr, page, &bl); 1672c66ac9dbSNicholas Bellinger read_bytes += bl; 1673c66ac9dbSNicholas Bellinger read_bytes += t->show_configfs_dev_params(hba, se_dev, page+read_bytes); 1674c66ac9dbSNicholas Bellinger return read_bytes; 1675c66ac9dbSNicholas Bellinger } 1676c66ac9dbSNicholas Bellinger 1677c66ac9dbSNicholas Bellinger static struct target_core_configfs_attribute target_core_attr_dev_info = { 1678c66ac9dbSNicholas Bellinger .attr = { .ca_owner = THIS_MODULE, 1679c66ac9dbSNicholas Bellinger .ca_name = "info", 1680c66ac9dbSNicholas Bellinger .ca_mode = S_IRUGO }, 1681c66ac9dbSNicholas Bellinger .show = target_core_show_dev_info, 1682c66ac9dbSNicholas Bellinger .store = NULL, 1683c66ac9dbSNicholas Bellinger }; 1684c66ac9dbSNicholas Bellinger 1685c66ac9dbSNicholas Bellinger static ssize_t target_core_store_dev_control( 1686c66ac9dbSNicholas Bellinger void *p, 1687c66ac9dbSNicholas Bellinger const char *page, 1688c66ac9dbSNicholas Bellinger size_t count) 1689c66ac9dbSNicholas Bellinger { 1690c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = (struct se_subsystem_dev *)p; 1691c66ac9dbSNicholas Bellinger struct se_hba *hba = se_dev->se_dev_hba; 1692c66ac9dbSNicholas Bellinger struct se_subsystem_api *t = hba->transport; 1693c66ac9dbSNicholas Bellinger 1694c66ac9dbSNicholas Bellinger if (!(se_dev->se_dev_su_ptr)) { 1695c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate struct se_subsystem_dev>se" 1696c66ac9dbSNicholas Bellinger "_dev_su_ptr\n"); 1697c66ac9dbSNicholas Bellinger return -EINVAL; 1698c66ac9dbSNicholas Bellinger } 1699c66ac9dbSNicholas Bellinger 1700c66ac9dbSNicholas Bellinger return t->set_configfs_dev_params(hba, se_dev, page, count); 1701c66ac9dbSNicholas Bellinger } 1702c66ac9dbSNicholas Bellinger 1703c66ac9dbSNicholas Bellinger static struct target_core_configfs_attribute target_core_attr_dev_control = { 1704c66ac9dbSNicholas Bellinger .attr = { .ca_owner = THIS_MODULE, 1705c66ac9dbSNicholas Bellinger .ca_name = "control", 1706c66ac9dbSNicholas Bellinger .ca_mode = S_IWUSR }, 1707c66ac9dbSNicholas Bellinger .show = NULL, 1708c66ac9dbSNicholas Bellinger .store = target_core_store_dev_control, 1709c66ac9dbSNicholas Bellinger }; 1710c66ac9dbSNicholas Bellinger 1711c66ac9dbSNicholas Bellinger static ssize_t target_core_show_dev_alias(void *p, char *page) 1712c66ac9dbSNicholas Bellinger { 1713c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = (struct se_subsystem_dev *)p; 1714c66ac9dbSNicholas Bellinger 1715c66ac9dbSNicholas Bellinger if (!(se_dev->su_dev_flags & SDF_USING_ALIAS)) 1716c66ac9dbSNicholas Bellinger return 0; 1717c66ac9dbSNicholas Bellinger 1718c66ac9dbSNicholas Bellinger return snprintf(page, PAGE_SIZE, "%s\n", se_dev->se_dev_alias); 1719c66ac9dbSNicholas Bellinger } 1720c66ac9dbSNicholas Bellinger 1721c66ac9dbSNicholas Bellinger static ssize_t target_core_store_dev_alias( 1722c66ac9dbSNicholas Bellinger void *p, 1723c66ac9dbSNicholas Bellinger const char *page, 1724c66ac9dbSNicholas Bellinger size_t count) 1725c66ac9dbSNicholas Bellinger { 1726c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = (struct se_subsystem_dev *)p; 1727c66ac9dbSNicholas Bellinger struct se_hba *hba = se_dev->se_dev_hba; 1728c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1729c66ac9dbSNicholas Bellinger 1730c66ac9dbSNicholas Bellinger if (count > (SE_DEV_ALIAS_LEN-1)) { 1731c66ac9dbSNicholas Bellinger printk(KERN_ERR "alias count: %d exceeds" 1732c66ac9dbSNicholas Bellinger " SE_DEV_ALIAS_LEN-1: %u\n", (int)count, 1733c66ac9dbSNicholas Bellinger SE_DEV_ALIAS_LEN-1); 1734c66ac9dbSNicholas Bellinger return -EINVAL; 1735c66ac9dbSNicholas Bellinger } 1736c66ac9dbSNicholas Bellinger 1737c66ac9dbSNicholas Bellinger se_dev->su_dev_flags |= SDF_USING_ALIAS; 1738c66ac9dbSNicholas Bellinger read_bytes = snprintf(&se_dev->se_dev_alias[0], SE_DEV_ALIAS_LEN, 1739c66ac9dbSNicholas Bellinger "%s", page); 1740c66ac9dbSNicholas Bellinger 1741c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: %s/%s set alias: %s\n", 1742c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 1743c66ac9dbSNicholas Bellinger config_item_name(&se_dev->se_dev_group.cg_item), 1744c66ac9dbSNicholas Bellinger se_dev->se_dev_alias); 1745c66ac9dbSNicholas Bellinger 1746c66ac9dbSNicholas Bellinger return read_bytes; 1747c66ac9dbSNicholas Bellinger } 1748c66ac9dbSNicholas Bellinger 1749c66ac9dbSNicholas Bellinger static struct target_core_configfs_attribute target_core_attr_dev_alias = { 1750c66ac9dbSNicholas Bellinger .attr = { .ca_owner = THIS_MODULE, 1751c66ac9dbSNicholas Bellinger .ca_name = "alias", 1752c66ac9dbSNicholas Bellinger .ca_mode = S_IRUGO | S_IWUSR }, 1753c66ac9dbSNicholas Bellinger .show = target_core_show_dev_alias, 1754c66ac9dbSNicholas Bellinger .store = target_core_store_dev_alias, 1755c66ac9dbSNicholas Bellinger }; 1756c66ac9dbSNicholas Bellinger 1757c66ac9dbSNicholas Bellinger static ssize_t target_core_show_dev_udev_path(void *p, char *page) 1758c66ac9dbSNicholas Bellinger { 1759c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = (struct se_subsystem_dev *)p; 1760c66ac9dbSNicholas Bellinger 1761c66ac9dbSNicholas Bellinger if (!(se_dev->su_dev_flags & SDF_USING_UDEV_PATH)) 1762c66ac9dbSNicholas Bellinger return 0; 1763c66ac9dbSNicholas Bellinger 1764c66ac9dbSNicholas Bellinger return snprintf(page, PAGE_SIZE, "%s\n", se_dev->se_dev_udev_path); 1765c66ac9dbSNicholas Bellinger } 1766c66ac9dbSNicholas Bellinger 1767c66ac9dbSNicholas Bellinger static ssize_t target_core_store_dev_udev_path( 1768c66ac9dbSNicholas Bellinger void *p, 1769c66ac9dbSNicholas Bellinger const char *page, 1770c66ac9dbSNicholas Bellinger size_t count) 1771c66ac9dbSNicholas Bellinger { 1772c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = (struct se_subsystem_dev *)p; 1773c66ac9dbSNicholas Bellinger struct se_hba *hba = se_dev->se_dev_hba; 1774c66ac9dbSNicholas Bellinger ssize_t read_bytes; 1775c66ac9dbSNicholas Bellinger 1776c66ac9dbSNicholas Bellinger if (count > (SE_UDEV_PATH_LEN-1)) { 1777c66ac9dbSNicholas Bellinger printk(KERN_ERR "udev_path count: %d exceeds" 1778c66ac9dbSNicholas Bellinger " SE_UDEV_PATH_LEN-1: %u\n", (int)count, 1779c66ac9dbSNicholas Bellinger SE_UDEV_PATH_LEN-1); 1780c66ac9dbSNicholas Bellinger return -EINVAL; 1781c66ac9dbSNicholas Bellinger } 1782c66ac9dbSNicholas Bellinger 1783c66ac9dbSNicholas Bellinger se_dev->su_dev_flags |= SDF_USING_UDEV_PATH; 1784c66ac9dbSNicholas Bellinger read_bytes = snprintf(&se_dev->se_dev_udev_path[0], SE_UDEV_PATH_LEN, 1785c66ac9dbSNicholas Bellinger "%s", page); 1786c66ac9dbSNicholas Bellinger 1787c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: %s/%s set udev_path: %s\n", 1788c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 1789c66ac9dbSNicholas Bellinger config_item_name(&se_dev->se_dev_group.cg_item), 1790c66ac9dbSNicholas Bellinger se_dev->se_dev_udev_path); 1791c66ac9dbSNicholas Bellinger 1792c66ac9dbSNicholas Bellinger return read_bytes; 1793c66ac9dbSNicholas Bellinger } 1794c66ac9dbSNicholas Bellinger 1795c66ac9dbSNicholas Bellinger static struct target_core_configfs_attribute target_core_attr_dev_udev_path = { 1796c66ac9dbSNicholas Bellinger .attr = { .ca_owner = THIS_MODULE, 1797c66ac9dbSNicholas Bellinger .ca_name = "udev_path", 1798c66ac9dbSNicholas Bellinger .ca_mode = S_IRUGO | S_IWUSR }, 1799c66ac9dbSNicholas Bellinger .show = target_core_show_dev_udev_path, 1800c66ac9dbSNicholas Bellinger .store = target_core_store_dev_udev_path, 1801c66ac9dbSNicholas Bellinger }; 1802c66ac9dbSNicholas Bellinger 1803c66ac9dbSNicholas Bellinger static ssize_t target_core_store_dev_enable( 1804c66ac9dbSNicholas Bellinger void *p, 1805c66ac9dbSNicholas Bellinger const char *page, 1806c66ac9dbSNicholas Bellinger size_t count) 1807c66ac9dbSNicholas Bellinger { 1808c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = (struct se_subsystem_dev *)p; 1809c66ac9dbSNicholas Bellinger struct se_device *dev; 1810c66ac9dbSNicholas Bellinger struct se_hba *hba = se_dev->se_dev_hba; 1811c66ac9dbSNicholas Bellinger struct se_subsystem_api *t = hba->transport; 1812c66ac9dbSNicholas Bellinger char *ptr; 1813c66ac9dbSNicholas Bellinger 1814c66ac9dbSNicholas Bellinger ptr = strstr(page, "1"); 1815c66ac9dbSNicholas Bellinger if (!(ptr)) { 1816c66ac9dbSNicholas Bellinger printk(KERN_ERR "For dev_enable ops, only valid value" 1817c66ac9dbSNicholas Bellinger " is \"1\"\n"); 1818c66ac9dbSNicholas Bellinger return -EINVAL; 1819c66ac9dbSNicholas Bellinger } 1820c66ac9dbSNicholas Bellinger if ((se_dev->se_dev_ptr)) { 1821c66ac9dbSNicholas Bellinger printk(KERN_ERR "se_dev->se_dev_ptr already set for storage" 1822c66ac9dbSNicholas Bellinger " object\n"); 1823c66ac9dbSNicholas Bellinger return -EEXIST; 1824c66ac9dbSNicholas Bellinger } 1825c66ac9dbSNicholas Bellinger 1826c66ac9dbSNicholas Bellinger if (t->check_configfs_dev_params(hba, se_dev) < 0) 1827c66ac9dbSNicholas Bellinger return -EINVAL; 1828c66ac9dbSNicholas Bellinger 1829c66ac9dbSNicholas Bellinger dev = t->create_virtdevice(hba, se_dev, se_dev->se_dev_su_ptr); 1830613640e4SNicholas Bellinger if (IS_ERR(dev)) 1831613640e4SNicholas Bellinger return PTR_ERR(dev); 1832613640e4SNicholas Bellinger else if (!dev) 1833c66ac9dbSNicholas Bellinger return -EINVAL; 1834c66ac9dbSNicholas Bellinger 1835c66ac9dbSNicholas Bellinger se_dev->se_dev_ptr = dev; 1836c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Registered se_dev->se_dev_ptr:" 1837c66ac9dbSNicholas Bellinger " %p\n", se_dev->se_dev_ptr); 1838c66ac9dbSNicholas Bellinger 1839c66ac9dbSNicholas Bellinger return count; 1840c66ac9dbSNicholas Bellinger } 1841c66ac9dbSNicholas Bellinger 1842c66ac9dbSNicholas Bellinger static struct target_core_configfs_attribute target_core_attr_dev_enable = { 1843c66ac9dbSNicholas Bellinger .attr = { .ca_owner = THIS_MODULE, 1844c66ac9dbSNicholas Bellinger .ca_name = "enable", 1845c66ac9dbSNicholas Bellinger .ca_mode = S_IWUSR }, 1846c66ac9dbSNicholas Bellinger .show = NULL, 1847c66ac9dbSNicholas Bellinger .store = target_core_store_dev_enable, 1848c66ac9dbSNicholas Bellinger }; 1849c66ac9dbSNicholas Bellinger 1850c66ac9dbSNicholas Bellinger static ssize_t target_core_show_alua_lu_gp(void *p, char *page) 1851c66ac9dbSNicholas Bellinger { 1852c66ac9dbSNicholas Bellinger struct se_device *dev; 1853c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev = (struct se_subsystem_dev *)p; 1854c66ac9dbSNicholas Bellinger struct config_item *lu_ci; 1855c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 1856c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 1857c66ac9dbSNicholas Bellinger ssize_t len = 0; 1858c66ac9dbSNicholas Bellinger 1859c66ac9dbSNicholas Bellinger dev = su_dev->se_dev_ptr; 1860c66ac9dbSNicholas Bellinger if (!(dev)) 1861c66ac9dbSNicholas Bellinger return -ENODEV; 1862c66ac9dbSNicholas Bellinger 1863c66ac9dbSNicholas Bellinger if (T10_ALUA(su_dev)->alua_type != SPC3_ALUA_EMULATED) 1864c66ac9dbSNicholas Bellinger return len; 1865c66ac9dbSNicholas Bellinger 1866c66ac9dbSNicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 1867c66ac9dbSNicholas Bellinger if (!(lu_gp_mem)) { 1868c66ac9dbSNicholas Bellinger printk(KERN_ERR "NULL struct se_device->dev_alua_lu_gp_mem" 1869c66ac9dbSNicholas Bellinger " pointer\n"); 1870c66ac9dbSNicholas Bellinger return -EINVAL; 1871c66ac9dbSNicholas Bellinger } 1872c66ac9dbSNicholas Bellinger 1873c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 1874c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 1875c66ac9dbSNicholas Bellinger if ((lu_gp)) { 1876c66ac9dbSNicholas Bellinger lu_ci = &lu_gp->lu_gp_group.cg_item; 1877c66ac9dbSNicholas Bellinger len += sprintf(page, "LU Group Alias: %s\nLU Group ID: %hu\n", 1878c66ac9dbSNicholas Bellinger config_item_name(lu_ci), lu_gp->lu_gp_id); 1879c66ac9dbSNicholas Bellinger } 1880c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1881c66ac9dbSNicholas Bellinger 1882c66ac9dbSNicholas Bellinger return len; 1883c66ac9dbSNicholas Bellinger } 1884c66ac9dbSNicholas Bellinger 1885c66ac9dbSNicholas Bellinger static ssize_t target_core_store_alua_lu_gp( 1886c66ac9dbSNicholas Bellinger void *p, 1887c66ac9dbSNicholas Bellinger const char *page, 1888c66ac9dbSNicholas Bellinger size_t count) 1889c66ac9dbSNicholas Bellinger { 1890c66ac9dbSNicholas Bellinger struct se_device *dev; 1891c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev = (struct se_subsystem_dev *)p; 1892c66ac9dbSNicholas Bellinger struct se_hba *hba = su_dev->se_dev_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 1898c66ac9dbSNicholas Bellinger dev = su_dev->se_dev_ptr; 1899c66ac9dbSNicholas Bellinger if (!(dev)) 1900c66ac9dbSNicholas Bellinger return -ENODEV; 1901c66ac9dbSNicholas Bellinger 1902c66ac9dbSNicholas Bellinger if (T10_ALUA(su_dev)->alua_type != SPC3_ALUA_EMULATED) { 1903c66ac9dbSNicholas Bellinger printk(KERN_WARNING "SPC3_ALUA_EMULATED not enabled for %s/%s\n", 1904c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 1905c66ac9dbSNicholas Bellinger config_item_name(&su_dev->se_dev_group.cg_item)); 1906c66ac9dbSNicholas Bellinger return -EINVAL; 1907c66ac9dbSNicholas Bellinger } 1908c66ac9dbSNicholas Bellinger if (count > LU_GROUP_NAME_BUF) { 1909c66ac9dbSNicholas Bellinger printk(KERN_ERR "ALUA LU Group Alias too large!\n"); 1910c66ac9dbSNicholas Bellinger return -EINVAL; 1911c66ac9dbSNicholas Bellinger } 1912c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 1913c66ac9dbSNicholas Bellinger memcpy(buf, page, count); 1914c66ac9dbSNicholas Bellinger /* 1915c66ac9dbSNicholas Bellinger * Any ALUA logical unit alias besides "NULL" means we will be 1916c66ac9dbSNicholas Bellinger * making a new group association. 1917c66ac9dbSNicholas Bellinger */ 1918c66ac9dbSNicholas Bellinger if (strcmp(strstrip(buf), "NULL")) { 1919c66ac9dbSNicholas Bellinger /* 1920c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name() will increment reference to 1921c66ac9dbSNicholas Bellinger * struct t10_alua_lu_gp. This reference is released with 1922c66ac9dbSNicholas Bellinger * core_alua_get_lu_gp_by_name below(). 1923c66ac9dbSNicholas Bellinger */ 1924c66ac9dbSNicholas Bellinger lu_gp_new = core_alua_get_lu_gp_by_name(strstrip(buf)); 1925c66ac9dbSNicholas Bellinger if (!(lu_gp_new)) 1926c66ac9dbSNicholas Bellinger return -ENODEV; 1927c66ac9dbSNicholas Bellinger } 1928c66ac9dbSNicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 1929c66ac9dbSNicholas Bellinger if (!(lu_gp_mem)) { 1930c66ac9dbSNicholas Bellinger if (lu_gp_new) 1931c66ac9dbSNicholas Bellinger core_alua_put_lu_gp_from_name(lu_gp_new); 1932c66ac9dbSNicholas Bellinger printk(KERN_ERR "NULL struct se_device->dev_alua_lu_gp_mem" 1933c66ac9dbSNicholas Bellinger " pointer\n"); 1934c66ac9dbSNicholas Bellinger return -EINVAL; 1935c66ac9dbSNicholas Bellinger } 1936c66ac9dbSNicholas Bellinger 1937c66ac9dbSNicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 1938c66ac9dbSNicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 1939c66ac9dbSNicholas Bellinger if ((lu_gp)) { 1940c66ac9dbSNicholas Bellinger /* 1941c66ac9dbSNicholas Bellinger * Clearing an existing lu_gp association, and replacing 1942c66ac9dbSNicholas Bellinger * with NULL 1943c66ac9dbSNicholas Bellinger */ 1944c66ac9dbSNicholas Bellinger if (!(lu_gp_new)) { 1945c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Releasing %s/%s" 1946c66ac9dbSNicholas Bellinger " from ALUA LU Group: core/alua/lu_gps/%s, ID:" 1947c66ac9dbSNicholas Bellinger " %hu\n", 1948c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 1949c66ac9dbSNicholas Bellinger config_item_name(&su_dev->se_dev_group.cg_item), 1950c66ac9dbSNicholas Bellinger config_item_name(&lu_gp->lu_gp_group.cg_item), 1951c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 1952c66ac9dbSNicholas Bellinger 1953c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 1954c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1955c66ac9dbSNicholas Bellinger 1956c66ac9dbSNicholas Bellinger return count; 1957c66ac9dbSNicholas Bellinger } 1958c66ac9dbSNicholas Bellinger /* 1959c66ac9dbSNicholas Bellinger * Removing existing association of lu_gp_mem with lu_gp 1960c66ac9dbSNicholas Bellinger */ 1961c66ac9dbSNicholas Bellinger __core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp); 1962c66ac9dbSNicholas Bellinger move = 1; 1963c66ac9dbSNicholas Bellinger } 1964c66ac9dbSNicholas Bellinger /* 1965c66ac9dbSNicholas Bellinger * Associate lu_gp_mem with lu_gp_new. 1966c66ac9dbSNicholas Bellinger */ 1967c66ac9dbSNicholas Bellinger __core_alua_attach_lu_gp_mem(lu_gp_mem, lu_gp_new); 1968c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 1969c66ac9dbSNicholas Bellinger 1970c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: %s %s/%s to ALUA LU Group:" 1971c66ac9dbSNicholas Bellinger " core/alua/lu_gps/%s, ID: %hu\n", 1972c66ac9dbSNicholas Bellinger (move) ? "Moving" : "Adding", 1973c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 1974c66ac9dbSNicholas Bellinger config_item_name(&su_dev->se_dev_group.cg_item), 1975c66ac9dbSNicholas Bellinger config_item_name(&lu_gp_new->lu_gp_group.cg_item), 1976c66ac9dbSNicholas Bellinger lu_gp_new->lu_gp_id); 1977c66ac9dbSNicholas Bellinger 1978c66ac9dbSNicholas Bellinger core_alua_put_lu_gp_from_name(lu_gp_new); 1979c66ac9dbSNicholas Bellinger return count; 1980c66ac9dbSNicholas Bellinger } 1981c66ac9dbSNicholas Bellinger 1982c66ac9dbSNicholas Bellinger static struct target_core_configfs_attribute target_core_attr_dev_alua_lu_gp = { 1983c66ac9dbSNicholas Bellinger .attr = { .ca_owner = THIS_MODULE, 1984c66ac9dbSNicholas Bellinger .ca_name = "alua_lu_gp", 1985c66ac9dbSNicholas Bellinger .ca_mode = S_IRUGO | S_IWUSR }, 1986c66ac9dbSNicholas Bellinger .show = target_core_show_alua_lu_gp, 1987c66ac9dbSNicholas Bellinger .store = target_core_store_alua_lu_gp, 1988c66ac9dbSNicholas Bellinger }; 1989c66ac9dbSNicholas Bellinger 1990c66ac9dbSNicholas Bellinger static struct configfs_attribute *lio_core_dev_attrs[] = { 1991c66ac9dbSNicholas Bellinger &target_core_attr_dev_info.attr, 1992c66ac9dbSNicholas Bellinger &target_core_attr_dev_control.attr, 1993c66ac9dbSNicholas Bellinger &target_core_attr_dev_alias.attr, 1994c66ac9dbSNicholas Bellinger &target_core_attr_dev_udev_path.attr, 1995c66ac9dbSNicholas Bellinger &target_core_attr_dev_enable.attr, 1996c66ac9dbSNicholas Bellinger &target_core_attr_dev_alua_lu_gp.attr, 1997c66ac9dbSNicholas Bellinger NULL, 1998c66ac9dbSNicholas Bellinger }; 1999c66ac9dbSNicholas Bellinger 2000c66ac9dbSNicholas Bellinger static void target_core_dev_release(struct config_item *item) 2001c66ac9dbSNicholas Bellinger { 2002c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = container_of(to_config_group(item), 2003c66ac9dbSNicholas Bellinger struct se_subsystem_dev, se_dev_group); 20041f6fe7cbSNicholas Bellinger struct se_hba *hba = item_to_hba(&se_dev->se_dev_hba->hba_group.cg_item); 20051f6fe7cbSNicholas Bellinger struct se_subsystem_api *t = hba->transport; 20061f6fe7cbSNicholas Bellinger struct config_group *dev_cg = &se_dev->se_dev_group; 2007c66ac9dbSNicholas Bellinger 2008c66ac9dbSNicholas Bellinger kfree(dev_cg->default_groups); 20091f6fe7cbSNicholas Bellinger /* 20101f6fe7cbSNicholas Bellinger * This pointer will set when the storage is enabled with: 20111f6fe7cbSNicholas Bellinger *`echo 1 > $CONFIGFS/core/$HBA/$DEV/dev_enable` 20121f6fe7cbSNicholas Bellinger */ 20131f6fe7cbSNicholas Bellinger if (se_dev->se_dev_ptr) { 20141f6fe7cbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Calling se_free_" 20151f6fe7cbSNicholas Bellinger "virtual_device() for se_dev_ptr: %p\n", 20161f6fe7cbSNicholas Bellinger se_dev->se_dev_ptr); 20171f6fe7cbSNicholas Bellinger 20181f6fe7cbSNicholas Bellinger se_free_virtual_device(se_dev->se_dev_ptr, hba); 20191f6fe7cbSNicholas Bellinger } else { 20201f6fe7cbSNicholas Bellinger /* 20211f6fe7cbSNicholas Bellinger * Release struct se_subsystem_dev->se_dev_su_ptr.. 20221f6fe7cbSNicholas Bellinger */ 20231f6fe7cbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Calling t->free_" 20241f6fe7cbSNicholas Bellinger "device() for se_dev_su_ptr: %p\n", 20251f6fe7cbSNicholas Bellinger se_dev->se_dev_su_ptr); 20261f6fe7cbSNicholas Bellinger 20271f6fe7cbSNicholas Bellinger t->free_device(se_dev->se_dev_su_ptr); 20281f6fe7cbSNicholas Bellinger } 20291f6fe7cbSNicholas Bellinger 20301f6fe7cbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Deallocating se_subsystem" 20311f6fe7cbSNicholas Bellinger "_dev_t: %p\n", se_dev); 20321f6fe7cbSNicholas Bellinger kfree(se_dev); 2033c66ac9dbSNicholas Bellinger } 2034c66ac9dbSNicholas Bellinger 2035c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_show(struct config_item *item, 2036c66ac9dbSNicholas Bellinger struct configfs_attribute *attr, 2037c66ac9dbSNicholas Bellinger char *page) 2038c66ac9dbSNicholas Bellinger { 2039c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = container_of( 2040c66ac9dbSNicholas Bellinger to_config_group(item), struct se_subsystem_dev, 2041c66ac9dbSNicholas Bellinger se_dev_group); 2042c66ac9dbSNicholas Bellinger struct target_core_configfs_attribute *tc_attr = container_of( 2043c66ac9dbSNicholas Bellinger attr, struct target_core_configfs_attribute, attr); 2044c66ac9dbSNicholas Bellinger 2045c66ac9dbSNicholas Bellinger if (!(tc_attr->show)) 2046c66ac9dbSNicholas Bellinger return -EINVAL; 2047c66ac9dbSNicholas Bellinger 2048c66ac9dbSNicholas Bellinger return tc_attr->show((void *)se_dev, page); 2049c66ac9dbSNicholas Bellinger } 2050c66ac9dbSNicholas Bellinger 2051c66ac9dbSNicholas Bellinger static ssize_t target_core_dev_store(struct config_item *item, 2052c66ac9dbSNicholas Bellinger struct configfs_attribute *attr, 2053c66ac9dbSNicholas Bellinger const char *page, size_t count) 2054c66ac9dbSNicholas Bellinger { 2055c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = container_of( 2056c66ac9dbSNicholas Bellinger to_config_group(item), struct se_subsystem_dev, 2057c66ac9dbSNicholas Bellinger se_dev_group); 2058c66ac9dbSNicholas Bellinger struct target_core_configfs_attribute *tc_attr = container_of( 2059c66ac9dbSNicholas Bellinger attr, struct target_core_configfs_attribute, attr); 2060c66ac9dbSNicholas Bellinger 2061c66ac9dbSNicholas Bellinger if (!(tc_attr->store)) 2062c66ac9dbSNicholas Bellinger return -EINVAL; 2063c66ac9dbSNicholas Bellinger 2064c66ac9dbSNicholas Bellinger return tc_attr->store((void *)se_dev, page, count); 2065c66ac9dbSNicholas Bellinger } 2066c66ac9dbSNicholas Bellinger 2067c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_dev_item_ops = { 2068c66ac9dbSNicholas Bellinger .release = target_core_dev_release, 2069c66ac9dbSNicholas Bellinger .show_attribute = target_core_dev_show, 2070c66ac9dbSNicholas Bellinger .store_attribute = target_core_dev_store, 2071c66ac9dbSNicholas Bellinger }; 2072c66ac9dbSNicholas Bellinger 2073c66ac9dbSNicholas Bellinger static struct config_item_type target_core_dev_cit = { 2074c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_dev_item_ops, 2075c66ac9dbSNicholas Bellinger .ct_attrs = lio_core_dev_attrs, 2076c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2077c66ac9dbSNicholas Bellinger }; 2078c66ac9dbSNicholas Bellinger 2079c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_dev_cit */ 2080c66ac9dbSNicholas Bellinger 2081c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gp_cit */ 2082c66ac9dbSNicholas Bellinger 2083c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_STRUCT(target_core_alua_lu_gp, t10_alua_lu_gp); 2084c66ac9dbSNicholas Bellinger #define SE_DEV_ALUA_LU_ATTR(_name, _mode) \ 2085c66ac9dbSNicholas Bellinger static struct target_core_alua_lu_gp_attribute \ 2086c66ac9dbSNicholas Bellinger target_core_alua_lu_gp_##_name = \ 2087c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR(_name, _mode, \ 2088c66ac9dbSNicholas Bellinger target_core_alua_lu_gp_show_attr_##_name, \ 2089c66ac9dbSNicholas Bellinger target_core_alua_lu_gp_store_attr_##_name); 2090c66ac9dbSNicholas Bellinger 2091c66ac9dbSNicholas Bellinger #define SE_DEV_ALUA_LU_ATTR_RO(_name) \ 2092c66ac9dbSNicholas Bellinger static struct target_core_alua_lu_gp_attribute \ 2093c66ac9dbSNicholas Bellinger target_core_alua_lu_gp_##_name = \ 2094c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR_RO(_name, \ 2095c66ac9dbSNicholas Bellinger target_core_alua_lu_gp_show_attr_##_name); 2096c66ac9dbSNicholas Bellinger 2097c66ac9dbSNicholas Bellinger /* 2098c66ac9dbSNicholas Bellinger * lu_gp_id 2099c66ac9dbSNicholas Bellinger */ 2100c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_lu_gp_show_attr_lu_gp_id( 2101c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp, 2102c66ac9dbSNicholas Bellinger char *page) 2103c66ac9dbSNicholas Bellinger { 2104c66ac9dbSNicholas Bellinger if (!(lu_gp->lu_gp_valid_id)) 2105c66ac9dbSNicholas Bellinger return 0; 2106c66ac9dbSNicholas Bellinger 2107c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", lu_gp->lu_gp_id); 2108c66ac9dbSNicholas Bellinger } 2109c66ac9dbSNicholas Bellinger 2110c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_lu_gp_store_attr_lu_gp_id( 2111c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp, 2112c66ac9dbSNicholas Bellinger const char *page, 2113c66ac9dbSNicholas Bellinger size_t count) 2114c66ac9dbSNicholas Bellinger { 2115c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = &lu_gp->lu_gp_group; 2116c66ac9dbSNicholas Bellinger unsigned long lu_gp_id; 2117c66ac9dbSNicholas Bellinger int ret; 2118c66ac9dbSNicholas Bellinger 2119c66ac9dbSNicholas Bellinger ret = strict_strtoul(page, 0, &lu_gp_id); 2120c66ac9dbSNicholas Bellinger if (ret < 0) { 2121c66ac9dbSNicholas Bellinger printk(KERN_ERR "strict_strtoul() returned %d for" 2122c66ac9dbSNicholas Bellinger " lu_gp_id\n", ret); 2123c66ac9dbSNicholas Bellinger return -EINVAL; 2124c66ac9dbSNicholas Bellinger } 2125c66ac9dbSNicholas Bellinger if (lu_gp_id > 0x0000ffff) { 2126c66ac9dbSNicholas Bellinger printk(KERN_ERR "ALUA lu_gp_id: %lu exceeds maximum:" 2127c66ac9dbSNicholas Bellinger " 0x0000ffff\n", lu_gp_id); 2128c66ac9dbSNicholas Bellinger return -EINVAL; 2129c66ac9dbSNicholas Bellinger } 2130c66ac9dbSNicholas Bellinger 2131c66ac9dbSNicholas Bellinger ret = core_alua_set_lu_gp_id(lu_gp, (u16)lu_gp_id); 2132c66ac9dbSNicholas Bellinger if (ret < 0) 2133c66ac9dbSNicholas Bellinger return -EINVAL; 2134c66ac9dbSNicholas Bellinger 2135c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Set ALUA Logical Unit" 2136c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s to ID: %hu\n", 2137c66ac9dbSNicholas Bellinger config_item_name(&alua_lu_gp_cg->cg_item), 2138c66ac9dbSNicholas Bellinger lu_gp->lu_gp_id); 2139c66ac9dbSNicholas Bellinger 2140c66ac9dbSNicholas Bellinger return count; 2141c66ac9dbSNicholas Bellinger } 2142c66ac9dbSNicholas Bellinger 2143c66ac9dbSNicholas Bellinger SE_DEV_ALUA_LU_ATTR(lu_gp_id, S_IRUGO | S_IWUSR); 2144c66ac9dbSNicholas Bellinger 2145c66ac9dbSNicholas Bellinger /* 2146c66ac9dbSNicholas Bellinger * members 2147c66ac9dbSNicholas Bellinger */ 2148c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_lu_gp_show_attr_members( 2149c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp, 2150c66ac9dbSNicholas Bellinger char *page) 2151c66ac9dbSNicholas Bellinger { 2152c66ac9dbSNicholas Bellinger struct se_device *dev; 2153c66ac9dbSNicholas Bellinger struct se_hba *hba; 2154c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev; 2155c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 2156c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2157c66ac9dbSNicholas Bellinger unsigned char buf[LU_GROUP_NAME_BUF]; 2158c66ac9dbSNicholas Bellinger 2159c66ac9dbSNicholas Bellinger memset(buf, 0, LU_GROUP_NAME_BUF); 2160c66ac9dbSNicholas Bellinger 2161c66ac9dbSNicholas Bellinger spin_lock(&lu_gp->lu_gp_lock); 2162c66ac9dbSNicholas Bellinger list_for_each_entry(lu_gp_mem, &lu_gp->lu_gp_mem_list, lu_gp_mem_list) { 2163c66ac9dbSNicholas Bellinger dev = lu_gp_mem->lu_gp_mem_dev; 2164c66ac9dbSNicholas Bellinger su_dev = dev->se_sub_dev; 2165c66ac9dbSNicholas Bellinger hba = su_dev->se_dev_hba; 2166c66ac9dbSNicholas Bellinger 2167c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, LU_GROUP_NAME_BUF, "%s/%s\n", 2168c66ac9dbSNicholas Bellinger config_item_name(&hba->hba_group.cg_item), 2169c66ac9dbSNicholas Bellinger config_item_name(&su_dev->se_dev_group.cg_item)); 2170c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2171c66ac9dbSNicholas Bellinger 2172c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 2173c66ac9dbSNicholas Bellinger printk(KERN_WARNING "Ran out of lu_gp_show_attr" 2174c66ac9dbSNicholas Bellinger "_members buffer\n"); 2175c66ac9dbSNicholas Bellinger break; 2176c66ac9dbSNicholas Bellinger } 2177c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2178c66ac9dbSNicholas Bellinger len += cur_len; 2179c66ac9dbSNicholas Bellinger } 2180c66ac9dbSNicholas Bellinger spin_unlock(&lu_gp->lu_gp_lock); 2181c66ac9dbSNicholas Bellinger 2182c66ac9dbSNicholas Bellinger return len; 2183c66ac9dbSNicholas Bellinger } 2184c66ac9dbSNicholas Bellinger 2185c66ac9dbSNicholas Bellinger SE_DEV_ALUA_LU_ATTR_RO(members); 2186c66ac9dbSNicholas Bellinger 2187c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_OPS(target_core_alua_lu_gp, t10_alua_lu_gp, lu_gp_group); 2188c66ac9dbSNicholas Bellinger 2189c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_lu_gp_attrs[] = { 2190c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_lu_gp_id.attr, 2191c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_members.attr, 2192c66ac9dbSNicholas Bellinger NULL, 2193c66ac9dbSNicholas Bellinger }; 2194c66ac9dbSNicholas Bellinger 21951f6fe7cbSNicholas Bellinger static void target_core_alua_lu_gp_release(struct config_item *item) 21961f6fe7cbSNicholas Bellinger { 21971f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 21981f6fe7cbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 21991f6fe7cbSNicholas Bellinger 22001f6fe7cbSNicholas Bellinger core_alua_free_lu_gp(lu_gp); 22011f6fe7cbSNicholas Bellinger } 22021f6fe7cbSNicholas Bellinger 2203c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_lu_gp_ops = { 22041f6fe7cbSNicholas Bellinger .release = target_core_alua_lu_gp_release, 2205c66ac9dbSNicholas Bellinger .show_attribute = target_core_alua_lu_gp_attr_show, 2206c66ac9dbSNicholas Bellinger .store_attribute = target_core_alua_lu_gp_attr_store, 2207c66ac9dbSNicholas Bellinger }; 2208c66ac9dbSNicholas Bellinger 2209c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gp_cit = { 2210c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_lu_gp_ops, 2211c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_lu_gp_attrs, 2212c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2213c66ac9dbSNicholas Bellinger }; 2214c66ac9dbSNicholas Bellinger 2215c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gp_cit */ 2216c66ac9dbSNicholas Bellinger 2217c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_lu_gps_cit */ 2218c66ac9dbSNicholas Bellinger 2219c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_lu_gp( 2220c66ac9dbSNicholas Bellinger struct config_group *group, 2221c66ac9dbSNicholas Bellinger const char *name) 2222c66ac9dbSNicholas Bellinger { 2223c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 2224c66ac9dbSNicholas Bellinger struct config_group *alua_lu_gp_cg = NULL; 2225c66ac9dbSNicholas Bellinger struct config_item *alua_lu_gp_ci = NULL; 2226c66ac9dbSNicholas Bellinger 2227c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp(name, 0); 2228c66ac9dbSNicholas Bellinger if (IS_ERR(lu_gp)) 2229c66ac9dbSNicholas Bellinger return NULL; 2230c66ac9dbSNicholas Bellinger 2231c66ac9dbSNicholas Bellinger alua_lu_gp_cg = &lu_gp->lu_gp_group; 2232c66ac9dbSNicholas Bellinger alua_lu_gp_ci = &alua_lu_gp_cg->cg_item; 2233c66ac9dbSNicholas Bellinger 2234c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_lu_gp_cg, name, 2235c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 2236c66ac9dbSNicholas Bellinger 2237c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Allocated ALUA Logical Unit" 2238c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s\n", 2239c66ac9dbSNicholas Bellinger config_item_name(alua_lu_gp_ci)); 2240c66ac9dbSNicholas Bellinger 2241c66ac9dbSNicholas Bellinger return alua_lu_gp_cg; 2242c66ac9dbSNicholas Bellinger 2243c66ac9dbSNicholas Bellinger } 2244c66ac9dbSNicholas Bellinger 2245c66ac9dbSNicholas Bellinger static void target_core_alua_drop_lu_gp( 2246c66ac9dbSNicholas Bellinger struct config_group *group, 2247c66ac9dbSNicholas Bellinger struct config_item *item) 2248c66ac9dbSNicholas Bellinger { 2249c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item), 2250c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp, lu_gp_group); 2251c66ac9dbSNicholas Bellinger 2252c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Releasing ALUA Logical Unit" 2253c66ac9dbSNicholas Bellinger " Group: core/alua/lu_gps/%s, ID: %hu\n", 2254c66ac9dbSNicholas Bellinger config_item_name(item), lu_gp->lu_gp_id); 22551f6fe7cbSNicholas Bellinger /* 22561f6fe7cbSNicholas Bellinger * core_alua_free_lu_gp() is called from target_core_alua_lu_gp_ops->release() 22571f6fe7cbSNicholas Bellinger * -> target_core_alua_lu_gp_release() 22581f6fe7cbSNicholas Bellinger */ 2259c66ac9dbSNicholas Bellinger config_item_put(item); 2260c66ac9dbSNicholas Bellinger } 2261c66ac9dbSNicholas Bellinger 2262c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_lu_gps_group_ops = { 2263c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_lu_gp, 2264c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_lu_gp, 2265c66ac9dbSNicholas Bellinger }; 2266c66ac9dbSNicholas Bellinger 2267c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_lu_gps_cit = { 2268c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2269c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_alua_lu_gps_group_ops, 2270c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2271c66ac9dbSNicholas Bellinger }; 2272c66ac9dbSNicholas Bellinger 2273c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_lu_gps_cit */ 2274c66ac9dbSNicholas Bellinger 2275c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2276c66ac9dbSNicholas Bellinger 2277c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_STRUCT(target_core_alua_tg_pt_gp, t10_alua_tg_pt_gp); 2278c66ac9dbSNicholas Bellinger #define SE_DEV_ALUA_TG_PT_ATTR(_name, _mode) \ 2279c66ac9dbSNicholas Bellinger static struct target_core_alua_tg_pt_gp_attribute \ 2280c66ac9dbSNicholas Bellinger target_core_alua_tg_pt_gp_##_name = \ 2281c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR(_name, _mode, \ 2282c66ac9dbSNicholas Bellinger target_core_alua_tg_pt_gp_show_attr_##_name, \ 2283c66ac9dbSNicholas Bellinger target_core_alua_tg_pt_gp_store_attr_##_name); 2284c66ac9dbSNicholas Bellinger 2285c66ac9dbSNicholas Bellinger #define SE_DEV_ALUA_TG_PT_ATTR_RO(_name) \ 2286c66ac9dbSNicholas Bellinger static struct target_core_alua_tg_pt_gp_attribute \ 2287c66ac9dbSNicholas Bellinger target_core_alua_tg_pt_gp_##_name = \ 2288c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR_RO(_name, \ 2289c66ac9dbSNicholas Bellinger target_core_alua_tg_pt_gp_show_attr_##_name); 2290c66ac9dbSNicholas Bellinger 2291c66ac9dbSNicholas Bellinger /* 2292c66ac9dbSNicholas Bellinger * alua_access_state 2293c66ac9dbSNicholas Bellinger */ 2294c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_state( 2295c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2296c66ac9dbSNicholas Bellinger char *page) 2297c66ac9dbSNicholas Bellinger { 2298c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", 2299c66ac9dbSNicholas Bellinger atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state)); 2300c66ac9dbSNicholas Bellinger } 2301c66ac9dbSNicholas Bellinger 2302c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( 2303c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2304c66ac9dbSNicholas Bellinger const char *page, 2305c66ac9dbSNicholas Bellinger size_t count) 2306c66ac9dbSNicholas Bellinger { 2307c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev = tg_pt_gp->tg_pt_gp_su_dev; 2308c66ac9dbSNicholas Bellinger unsigned long tmp; 2309c66ac9dbSNicholas Bellinger int new_state, ret; 2310c66ac9dbSNicholas Bellinger 2311c66ac9dbSNicholas Bellinger if (!(tg_pt_gp->tg_pt_gp_valid_id)) { 2312c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to do implict ALUA on non valid" 2313c66ac9dbSNicholas Bellinger " tg_pt_gp ID: %hu\n", tg_pt_gp->tg_pt_gp_valid_id); 2314c66ac9dbSNicholas Bellinger return -EINVAL; 2315c66ac9dbSNicholas Bellinger } 2316c66ac9dbSNicholas Bellinger 2317c66ac9dbSNicholas Bellinger ret = strict_strtoul(page, 0, &tmp); 2318c66ac9dbSNicholas Bellinger if (ret < 0) { 2319c66ac9dbSNicholas Bellinger printk("Unable to extract new ALUA access state from" 2320c66ac9dbSNicholas Bellinger " %s\n", page); 2321c66ac9dbSNicholas Bellinger return -EINVAL; 2322c66ac9dbSNicholas Bellinger } 2323c66ac9dbSNicholas Bellinger new_state = (int)tmp; 2324c66ac9dbSNicholas Bellinger 2325c66ac9dbSNicholas Bellinger if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA)) { 2326c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to process implict configfs ALUA" 2327c66ac9dbSNicholas Bellinger " transition while TPGS_IMPLICT_ALUA is diabled\n"); 2328c66ac9dbSNicholas Bellinger return -EINVAL; 2329c66ac9dbSNicholas Bellinger } 2330c66ac9dbSNicholas Bellinger 2331c66ac9dbSNicholas Bellinger ret = core_alua_do_port_transition(tg_pt_gp, su_dev->se_dev_ptr, 2332c66ac9dbSNicholas Bellinger NULL, NULL, new_state, 0); 2333c66ac9dbSNicholas Bellinger return (!ret) ? count : -EINVAL; 2334c66ac9dbSNicholas Bellinger } 2335c66ac9dbSNicholas Bellinger 2336c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(alua_access_state, S_IRUGO | S_IWUSR); 2337c66ac9dbSNicholas Bellinger 2338c66ac9dbSNicholas Bellinger /* 2339c66ac9dbSNicholas Bellinger * alua_access_status 2340c66ac9dbSNicholas Bellinger */ 2341c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_status( 2342c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2343c66ac9dbSNicholas Bellinger char *page) 2344c66ac9dbSNicholas Bellinger { 2345c66ac9dbSNicholas Bellinger return sprintf(page, "%s\n", 2346c66ac9dbSNicholas Bellinger core_alua_dump_status(tg_pt_gp->tg_pt_gp_alua_access_status)); 2347c66ac9dbSNicholas Bellinger } 2348c66ac9dbSNicholas Bellinger 2349c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_status( 2350c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2351c66ac9dbSNicholas Bellinger const char *page, 2352c66ac9dbSNicholas Bellinger size_t count) 2353c66ac9dbSNicholas Bellinger { 2354c66ac9dbSNicholas Bellinger unsigned long tmp; 2355c66ac9dbSNicholas Bellinger int new_status, ret; 2356c66ac9dbSNicholas Bellinger 2357c66ac9dbSNicholas Bellinger if (!(tg_pt_gp->tg_pt_gp_valid_id)) { 2358c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to do set ALUA access status on non" 2359c66ac9dbSNicholas Bellinger " valid tg_pt_gp ID: %hu\n", 2360c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_valid_id); 2361c66ac9dbSNicholas Bellinger return -EINVAL; 2362c66ac9dbSNicholas Bellinger } 2363c66ac9dbSNicholas Bellinger 2364c66ac9dbSNicholas Bellinger ret = strict_strtoul(page, 0, &tmp); 2365c66ac9dbSNicholas Bellinger if (ret < 0) { 2366c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to extract new ALUA access status" 2367c66ac9dbSNicholas Bellinger " from %s\n", page); 2368c66ac9dbSNicholas Bellinger return -EINVAL; 2369c66ac9dbSNicholas Bellinger } 2370c66ac9dbSNicholas Bellinger new_status = (int)tmp; 2371c66ac9dbSNicholas Bellinger 2372c66ac9dbSNicholas Bellinger if ((new_status != ALUA_STATUS_NONE) && 2373c66ac9dbSNicholas Bellinger (new_status != ALUA_STATUS_ALTERED_BY_EXPLICT_STPG) && 2374c66ac9dbSNicholas Bellinger (new_status != ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA)) { 2375c66ac9dbSNicholas Bellinger printk(KERN_ERR "Illegal ALUA access status: 0x%02x\n", 2376c66ac9dbSNicholas Bellinger new_status); 2377c66ac9dbSNicholas Bellinger return -EINVAL; 2378c66ac9dbSNicholas Bellinger } 2379c66ac9dbSNicholas Bellinger 2380c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_alua_access_status = new_status; 2381c66ac9dbSNicholas Bellinger return count; 2382c66ac9dbSNicholas Bellinger } 2383c66ac9dbSNicholas Bellinger 2384c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(alua_access_status, S_IRUGO | S_IWUSR); 2385c66ac9dbSNicholas Bellinger 2386c66ac9dbSNicholas Bellinger /* 2387c66ac9dbSNicholas Bellinger * alua_access_type 2388c66ac9dbSNicholas Bellinger */ 2389c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_type( 2390c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2391c66ac9dbSNicholas Bellinger char *page) 2392c66ac9dbSNicholas Bellinger { 2393c66ac9dbSNicholas Bellinger return core_alua_show_access_type(tg_pt_gp, page); 2394c66ac9dbSNicholas Bellinger } 2395c66ac9dbSNicholas Bellinger 2396c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_type( 2397c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2398c66ac9dbSNicholas Bellinger const char *page, 2399c66ac9dbSNicholas Bellinger size_t count) 2400c66ac9dbSNicholas Bellinger { 2401c66ac9dbSNicholas Bellinger return core_alua_store_access_type(tg_pt_gp, page, count); 2402c66ac9dbSNicholas Bellinger } 2403c66ac9dbSNicholas Bellinger 2404c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(alua_access_type, S_IRUGO | S_IWUSR); 2405c66ac9dbSNicholas Bellinger 2406c66ac9dbSNicholas Bellinger /* 2407c66ac9dbSNicholas Bellinger * alua_write_metadata 2408c66ac9dbSNicholas Bellinger */ 2409c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_write_metadata( 2410c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2411c66ac9dbSNicholas Bellinger char *page) 2412c66ac9dbSNicholas Bellinger { 2413c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_write_metadata); 2414c66ac9dbSNicholas Bellinger } 2415c66ac9dbSNicholas Bellinger 2416c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_write_metadata( 2417c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2418c66ac9dbSNicholas Bellinger const char *page, 2419c66ac9dbSNicholas Bellinger size_t count) 2420c66ac9dbSNicholas Bellinger { 2421c66ac9dbSNicholas Bellinger unsigned long tmp; 2422c66ac9dbSNicholas Bellinger int ret; 2423c66ac9dbSNicholas Bellinger 2424c66ac9dbSNicholas Bellinger ret = strict_strtoul(page, 0, &tmp); 2425c66ac9dbSNicholas Bellinger if (ret < 0) { 2426c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to extract alua_write_metadata\n"); 2427c66ac9dbSNicholas Bellinger return -EINVAL; 2428c66ac9dbSNicholas Bellinger } 2429c66ac9dbSNicholas Bellinger 2430c66ac9dbSNicholas Bellinger if ((tmp != 0) && (tmp != 1)) { 2431c66ac9dbSNicholas Bellinger printk(KERN_ERR "Illegal value for alua_write_metadata:" 2432c66ac9dbSNicholas Bellinger " %lu\n", tmp); 2433c66ac9dbSNicholas Bellinger return -EINVAL; 2434c66ac9dbSNicholas Bellinger } 2435c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_write_metadata = (int)tmp; 2436c66ac9dbSNicholas Bellinger 2437c66ac9dbSNicholas Bellinger return count; 2438c66ac9dbSNicholas Bellinger } 2439c66ac9dbSNicholas Bellinger 2440c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(alua_write_metadata, S_IRUGO | S_IWUSR); 2441c66ac9dbSNicholas Bellinger 2442c66ac9dbSNicholas Bellinger 2443c66ac9dbSNicholas Bellinger 2444c66ac9dbSNicholas Bellinger /* 2445c66ac9dbSNicholas Bellinger * nonop_delay_msecs 2446c66ac9dbSNicholas Bellinger */ 2447c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_nonop_delay_msecs( 2448c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2449c66ac9dbSNicholas Bellinger char *page) 2450c66ac9dbSNicholas Bellinger { 2451c66ac9dbSNicholas Bellinger return core_alua_show_nonop_delay_msecs(tg_pt_gp, page); 2452c66ac9dbSNicholas Bellinger 2453c66ac9dbSNicholas Bellinger } 2454c66ac9dbSNicholas Bellinger 2455c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_nonop_delay_msecs( 2456c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2457c66ac9dbSNicholas Bellinger const char *page, 2458c66ac9dbSNicholas Bellinger size_t count) 2459c66ac9dbSNicholas Bellinger { 2460c66ac9dbSNicholas Bellinger return core_alua_store_nonop_delay_msecs(tg_pt_gp, page, count); 2461c66ac9dbSNicholas Bellinger } 2462c66ac9dbSNicholas Bellinger 2463c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(nonop_delay_msecs, S_IRUGO | S_IWUSR); 2464c66ac9dbSNicholas Bellinger 2465c66ac9dbSNicholas Bellinger /* 2466c66ac9dbSNicholas Bellinger * trans_delay_msecs 2467c66ac9dbSNicholas Bellinger */ 2468c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_trans_delay_msecs( 2469c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2470c66ac9dbSNicholas Bellinger char *page) 2471c66ac9dbSNicholas Bellinger { 2472c66ac9dbSNicholas Bellinger return core_alua_show_trans_delay_msecs(tg_pt_gp, page); 2473c66ac9dbSNicholas Bellinger } 2474c66ac9dbSNicholas Bellinger 2475c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_trans_delay_msecs( 2476c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2477c66ac9dbSNicholas Bellinger const char *page, 2478c66ac9dbSNicholas Bellinger size_t count) 2479c66ac9dbSNicholas Bellinger { 2480c66ac9dbSNicholas Bellinger return core_alua_store_trans_delay_msecs(tg_pt_gp, page, count); 2481c66ac9dbSNicholas Bellinger } 2482c66ac9dbSNicholas Bellinger 2483c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(trans_delay_msecs, S_IRUGO | S_IWUSR); 2484c66ac9dbSNicholas Bellinger 2485c66ac9dbSNicholas Bellinger /* 2486c66ac9dbSNicholas Bellinger * preferred 2487c66ac9dbSNicholas Bellinger */ 2488c66ac9dbSNicholas Bellinger 2489c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_preferred( 2490c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2491c66ac9dbSNicholas Bellinger char *page) 2492c66ac9dbSNicholas Bellinger { 2493c66ac9dbSNicholas Bellinger return core_alua_show_preferred_bit(tg_pt_gp, page); 2494c66ac9dbSNicholas Bellinger } 2495c66ac9dbSNicholas Bellinger 2496c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_preferred( 2497c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2498c66ac9dbSNicholas Bellinger const char *page, 2499c66ac9dbSNicholas Bellinger size_t count) 2500c66ac9dbSNicholas Bellinger { 2501c66ac9dbSNicholas Bellinger return core_alua_store_preferred_bit(tg_pt_gp, page, count); 2502c66ac9dbSNicholas Bellinger } 2503c66ac9dbSNicholas Bellinger 2504c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(preferred, S_IRUGO | S_IWUSR); 2505c66ac9dbSNicholas Bellinger 2506c66ac9dbSNicholas Bellinger /* 2507c66ac9dbSNicholas Bellinger * tg_pt_gp_id 2508c66ac9dbSNicholas Bellinger */ 2509c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_tg_pt_gp_id( 2510c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2511c66ac9dbSNicholas Bellinger char *page) 2512c66ac9dbSNicholas Bellinger { 2513c66ac9dbSNicholas Bellinger if (!(tg_pt_gp->tg_pt_gp_valid_id)) 2514c66ac9dbSNicholas Bellinger return 0; 2515c66ac9dbSNicholas Bellinger 2516c66ac9dbSNicholas Bellinger return sprintf(page, "%hu\n", tg_pt_gp->tg_pt_gp_id); 2517c66ac9dbSNicholas Bellinger } 2518c66ac9dbSNicholas Bellinger 2519c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_store_attr_tg_pt_gp_id( 2520c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2521c66ac9dbSNicholas Bellinger const char *page, 2522c66ac9dbSNicholas Bellinger size_t count) 2523c66ac9dbSNicholas Bellinger { 2524c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2525c66ac9dbSNicholas Bellinger unsigned long tg_pt_gp_id; 2526c66ac9dbSNicholas Bellinger int ret; 2527c66ac9dbSNicholas Bellinger 2528c66ac9dbSNicholas Bellinger ret = strict_strtoul(page, 0, &tg_pt_gp_id); 2529c66ac9dbSNicholas Bellinger if (ret < 0) { 2530c66ac9dbSNicholas Bellinger printk(KERN_ERR "strict_strtoul() returned %d for" 2531c66ac9dbSNicholas Bellinger " tg_pt_gp_id\n", ret); 2532c66ac9dbSNicholas Bellinger return -EINVAL; 2533c66ac9dbSNicholas Bellinger } 2534c66ac9dbSNicholas Bellinger if (tg_pt_gp_id > 0x0000ffff) { 2535c66ac9dbSNicholas Bellinger printk(KERN_ERR "ALUA tg_pt_gp_id: %lu exceeds maximum:" 2536c66ac9dbSNicholas Bellinger " 0x0000ffff\n", tg_pt_gp_id); 2537c66ac9dbSNicholas Bellinger return -EINVAL; 2538c66ac9dbSNicholas Bellinger } 2539c66ac9dbSNicholas Bellinger 2540c66ac9dbSNicholas Bellinger ret = core_alua_set_tg_pt_gp_id(tg_pt_gp, (u16)tg_pt_gp_id); 2541c66ac9dbSNicholas Bellinger if (ret < 0) 2542c66ac9dbSNicholas Bellinger return -EINVAL; 2543c66ac9dbSNicholas Bellinger 2544c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Set ALUA Target Port Group: " 2545c66ac9dbSNicholas Bellinger "core/alua/tg_pt_gps/%s to ID: %hu\n", 2546c66ac9dbSNicholas Bellinger config_item_name(&alua_tg_pt_gp_cg->cg_item), 2547c66ac9dbSNicholas Bellinger tg_pt_gp->tg_pt_gp_id); 2548c66ac9dbSNicholas Bellinger 2549c66ac9dbSNicholas Bellinger return count; 2550c66ac9dbSNicholas Bellinger } 2551c66ac9dbSNicholas Bellinger 2552c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR(tg_pt_gp_id, S_IRUGO | S_IWUSR); 2553c66ac9dbSNicholas Bellinger 2554c66ac9dbSNicholas Bellinger /* 2555c66ac9dbSNicholas Bellinger * members 2556c66ac9dbSNicholas Bellinger */ 2557c66ac9dbSNicholas Bellinger static ssize_t target_core_alua_tg_pt_gp_show_attr_members( 2558c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp, 2559c66ac9dbSNicholas Bellinger char *page) 2560c66ac9dbSNicholas Bellinger { 2561c66ac9dbSNicholas Bellinger struct se_port *port; 2562c66ac9dbSNicholas Bellinger struct se_portal_group *tpg; 2563c66ac9dbSNicholas Bellinger struct se_lun *lun; 2564c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; 2565c66ac9dbSNicholas Bellinger ssize_t len = 0, cur_len; 2566c66ac9dbSNicholas Bellinger unsigned char buf[TG_PT_GROUP_NAME_BUF]; 2567c66ac9dbSNicholas Bellinger 2568c66ac9dbSNicholas Bellinger memset(buf, 0, TG_PT_GROUP_NAME_BUF); 2569c66ac9dbSNicholas Bellinger 2570c66ac9dbSNicholas Bellinger spin_lock(&tg_pt_gp->tg_pt_gp_lock); 2571c66ac9dbSNicholas Bellinger list_for_each_entry(tg_pt_gp_mem, &tg_pt_gp->tg_pt_gp_mem_list, 2572c66ac9dbSNicholas Bellinger tg_pt_gp_mem_list) { 2573c66ac9dbSNicholas Bellinger port = tg_pt_gp_mem->tg_pt; 2574c66ac9dbSNicholas Bellinger tpg = port->sep_tpg; 2575c66ac9dbSNicholas Bellinger lun = port->sep_lun; 2576c66ac9dbSNicholas Bellinger 2577c66ac9dbSNicholas Bellinger cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu" 2578c66ac9dbSNicholas Bellinger "/%s\n", TPG_TFO(tpg)->get_fabric_name(), 2579c66ac9dbSNicholas Bellinger TPG_TFO(tpg)->tpg_get_wwn(tpg), 2580c66ac9dbSNicholas Bellinger TPG_TFO(tpg)->tpg_get_tag(tpg), 2581c66ac9dbSNicholas Bellinger config_item_name(&lun->lun_group.cg_item)); 2582c66ac9dbSNicholas Bellinger cur_len++; /* Extra byte for NULL terminator */ 2583c66ac9dbSNicholas Bellinger 2584c66ac9dbSNicholas Bellinger if ((cur_len + len) > PAGE_SIZE) { 2585c66ac9dbSNicholas Bellinger printk(KERN_WARNING "Ran out of lu_gp_show_attr" 2586c66ac9dbSNicholas Bellinger "_members buffer\n"); 2587c66ac9dbSNicholas Bellinger break; 2588c66ac9dbSNicholas Bellinger } 2589c66ac9dbSNicholas Bellinger memcpy(page+len, buf, cur_len); 2590c66ac9dbSNicholas Bellinger len += cur_len; 2591c66ac9dbSNicholas Bellinger } 2592c66ac9dbSNicholas Bellinger spin_unlock(&tg_pt_gp->tg_pt_gp_lock); 2593c66ac9dbSNicholas Bellinger 2594c66ac9dbSNicholas Bellinger return len; 2595c66ac9dbSNicholas Bellinger } 2596c66ac9dbSNicholas Bellinger 2597c66ac9dbSNicholas Bellinger SE_DEV_ALUA_TG_PT_ATTR_RO(members); 2598c66ac9dbSNicholas Bellinger 2599c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_OPS(target_core_alua_tg_pt_gp, t10_alua_tg_pt_gp, 2600c66ac9dbSNicholas Bellinger tg_pt_gp_group); 2601c66ac9dbSNicholas Bellinger 2602c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = { 2603c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_alua_access_state.attr, 2604c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_alua_access_status.attr, 2605c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_alua_access_type.attr, 2606c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_alua_write_metadata.attr, 2607c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_nonop_delay_msecs.attr, 2608c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_trans_delay_msecs.attr, 2609c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_preferred.attr, 2610c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_tg_pt_gp_id.attr, 2611c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_members.attr, 2612c66ac9dbSNicholas Bellinger NULL, 2613c66ac9dbSNicholas Bellinger }; 2614c66ac9dbSNicholas Bellinger 26151f6fe7cbSNicholas Bellinger static void target_core_alua_tg_pt_gp_release(struct config_item *item) 26161f6fe7cbSNicholas Bellinger { 26171f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 26181f6fe7cbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 26191f6fe7cbSNicholas Bellinger 26201f6fe7cbSNicholas Bellinger core_alua_free_tg_pt_gp(tg_pt_gp); 26211f6fe7cbSNicholas Bellinger } 26221f6fe7cbSNicholas Bellinger 2623c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = { 26241f6fe7cbSNicholas Bellinger .release = target_core_alua_tg_pt_gp_release, 2625c66ac9dbSNicholas Bellinger .show_attribute = target_core_alua_tg_pt_gp_attr_show, 2626c66ac9dbSNicholas Bellinger .store_attribute = target_core_alua_tg_pt_gp_attr_store, 2627c66ac9dbSNicholas Bellinger }; 2628c66ac9dbSNicholas Bellinger 2629c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_tg_pt_gp_cit = { 2630c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_alua_tg_pt_gp_ops, 2631c66ac9dbSNicholas Bellinger .ct_attrs = target_core_alua_tg_pt_gp_attrs, 2632c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2633c66ac9dbSNicholas Bellinger }; 2634c66ac9dbSNicholas Bellinger 2635c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ 2636c66ac9dbSNicholas Bellinger 2637c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_tg_pt_gps_cit */ 2638c66ac9dbSNicholas Bellinger 2639c66ac9dbSNicholas Bellinger static struct config_group *target_core_alua_create_tg_pt_gp( 2640c66ac9dbSNicholas Bellinger struct config_group *group, 2641c66ac9dbSNicholas Bellinger const char *name) 2642c66ac9dbSNicholas Bellinger { 2643c66ac9dbSNicholas Bellinger struct t10_alua *alua = container_of(group, struct t10_alua, 2644c66ac9dbSNicholas Bellinger alua_tg_pt_gps_group); 2645c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2646c66ac9dbSNicholas Bellinger struct se_subsystem_dev *su_dev = alua->t10_sub_dev; 2647c66ac9dbSNicholas Bellinger struct config_group *alua_tg_pt_gp_cg = NULL; 2648c66ac9dbSNicholas Bellinger struct config_item *alua_tg_pt_gp_ci = NULL; 2649c66ac9dbSNicholas Bellinger 2650c66ac9dbSNicholas Bellinger tg_pt_gp = core_alua_allocate_tg_pt_gp(su_dev, name, 0); 2651c66ac9dbSNicholas Bellinger if (!(tg_pt_gp)) 2652c66ac9dbSNicholas Bellinger return NULL; 2653c66ac9dbSNicholas Bellinger 2654c66ac9dbSNicholas Bellinger alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; 2655c66ac9dbSNicholas Bellinger alua_tg_pt_gp_ci = &alua_tg_pt_gp_cg->cg_item; 2656c66ac9dbSNicholas Bellinger 2657c66ac9dbSNicholas Bellinger config_group_init_type_name(alua_tg_pt_gp_cg, name, 2658c66ac9dbSNicholas Bellinger &target_core_alua_tg_pt_gp_cit); 2659c66ac9dbSNicholas Bellinger 2660c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Allocated ALUA Target Port" 2661c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s\n", 2662c66ac9dbSNicholas Bellinger config_item_name(alua_tg_pt_gp_ci)); 2663c66ac9dbSNicholas Bellinger 2664c66ac9dbSNicholas Bellinger return alua_tg_pt_gp_cg; 2665c66ac9dbSNicholas Bellinger } 2666c66ac9dbSNicholas Bellinger 2667c66ac9dbSNicholas Bellinger static void target_core_alua_drop_tg_pt_gp( 2668c66ac9dbSNicholas Bellinger struct config_group *group, 2669c66ac9dbSNicholas Bellinger struct config_item *item) 2670c66ac9dbSNicholas Bellinger { 2671c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item), 2672c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp, tg_pt_gp_group); 2673c66ac9dbSNicholas Bellinger 2674c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Releasing ALUA Target Port" 2675c66ac9dbSNicholas Bellinger " Group: alua/tg_pt_gps/%s, ID: %hu\n", 2676c66ac9dbSNicholas Bellinger config_item_name(item), tg_pt_gp->tg_pt_gp_id); 26771f6fe7cbSNicholas Bellinger /* 26781f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from target_core_alua_tg_pt_gp_ops->release() 26791f6fe7cbSNicholas Bellinger * -> target_core_alua_tg_pt_gp_release(). 26801f6fe7cbSNicholas Bellinger */ 2681c66ac9dbSNicholas Bellinger config_item_put(item); 2682c66ac9dbSNicholas Bellinger } 2683c66ac9dbSNicholas Bellinger 2684c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_alua_tg_pt_gps_group_ops = { 2685c66ac9dbSNicholas Bellinger .make_group = &target_core_alua_create_tg_pt_gp, 2686c66ac9dbSNicholas Bellinger .drop_item = &target_core_alua_drop_tg_pt_gp, 2687c66ac9dbSNicholas Bellinger }; 2688c66ac9dbSNicholas Bellinger 2689c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_tg_pt_gps_cit = { 2690c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_alua_tg_pt_gps_group_ops, 2691c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2692c66ac9dbSNicholas Bellinger }; 2693c66ac9dbSNicholas Bellinger 2694c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_tg_pt_gps_cit */ 2695c66ac9dbSNicholas Bellinger 2696c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_alua_cit */ 2697c66ac9dbSNicholas Bellinger 2698c66ac9dbSNicholas Bellinger /* 2699c66ac9dbSNicholas Bellinger * target_core_alua_cit is a ConfigFS group that lives under 2700c66ac9dbSNicholas Bellinger * /sys/kernel/config/target/core/alua. There are default groups 2701c66ac9dbSNicholas Bellinger * core/alua/lu_gps and core/alua/tg_pt_gps that are attached to 2702c66ac9dbSNicholas Bellinger * target_core_alua_cit in target_core_init_configfs() below. 2703c66ac9dbSNicholas Bellinger */ 2704c66ac9dbSNicholas Bellinger static struct config_item_type target_core_alua_cit = { 2705c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 2706c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 2707c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2708c66ac9dbSNicholas Bellinger }; 2709c66ac9dbSNicholas Bellinger 2710c66ac9dbSNicholas Bellinger /* End functions for struct config_item_type target_core_alua_cit */ 2711c66ac9dbSNicholas Bellinger 2712c66ac9dbSNicholas Bellinger /* Start functions for struct config_item_type target_core_hba_cit */ 2713c66ac9dbSNicholas Bellinger 2714c66ac9dbSNicholas Bellinger static struct config_group *target_core_make_subdev( 2715c66ac9dbSNicholas Bellinger struct config_group *group, 2716c66ac9dbSNicholas Bellinger const char *name) 2717c66ac9dbSNicholas Bellinger { 2718c66ac9dbSNicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 2719c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev; 2720c66ac9dbSNicholas Bellinger struct se_subsystem_api *t; 2721c66ac9dbSNicholas Bellinger struct config_item *hba_ci = &group->cg_item; 2722c66ac9dbSNicholas Bellinger struct se_hba *hba = item_to_hba(hba_ci); 2723c66ac9dbSNicholas Bellinger struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL; 2724c66ac9dbSNicholas Bellinger 2725c66ac9dbSNicholas Bellinger if (mutex_lock_interruptible(&hba->hba_access_mutex)) 2726c66ac9dbSNicholas Bellinger return NULL; 2727c66ac9dbSNicholas Bellinger 2728c66ac9dbSNicholas Bellinger /* 2729c66ac9dbSNicholas Bellinger * Locate the struct se_subsystem_api from parent's struct se_hba. 2730c66ac9dbSNicholas Bellinger */ 2731c66ac9dbSNicholas Bellinger t = hba->transport; 2732c66ac9dbSNicholas Bellinger 2733c66ac9dbSNicholas Bellinger se_dev = kzalloc(sizeof(struct se_subsystem_dev), GFP_KERNEL); 2734c66ac9dbSNicholas Bellinger if (!se_dev) { 2735c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to allocate memory for" 2736c66ac9dbSNicholas Bellinger " struct se_subsystem_dev\n"); 2737c66ac9dbSNicholas Bellinger goto unlock; 2738c66ac9dbSNicholas Bellinger } 2739c66ac9dbSNicholas Bellinger INIT_LIST_HEAD(&se_dev->g_se_dev_list); 2740c66ac9dbSNicholas Bellinger INIT_LIST_HEAD(&se_dev->t10_wwn.t10_vpd_list); 2741c66ac9dbSNicholas Bellinger spin_lock_init(&se_dev->t10_wwn.t10_vpd_lock); 2742c66ac9dbSNicholas Bellinger INIT_LIST_HEAD(&se_dev->t10_reservation.registration_list); 2743c66ac9dbSNicholas Bellinger INIT_LIST_HEAD(&se_dev->t10_reservation.aptpl_reg_list); 2744c66ac9dbSNicholas Bellinger spin_lock_init(&se_dev->t10_reservation.registration_lock); 2745c66ac9dbSNicholas Bellinger spin_lock_init(&se_dev->t10_reservation.aptpl_reg_lock); 2746c66ac9dbSNicholas Bellinger INIT_LIST_HEAD(&se_dev->t10_alua.tg_pt_gps_list); 2747c66ac9dbSNicholas Bellinger spin_lock_init(&se_dev->t10_alua.tg_pt_gps_lock); 2748c66ac9dbSNicholas Bellinger spin_lock_init(&se_dev->se_dev_lock); 2749c66ac9dbSNicholas Bellinger se_dev->t10_reservation.pr_aptpl_buf_len = PR_APTPL_BUF_LEN; 2750c66ac9dbSNicholas Bellinger se_dev->t10_wwn.t10_sub_dev = se_dev; 2751c66ac9dbSNicholas Bellinger se_dev->t10_alua.t10_sub_dev = se_dev; 2752c66ac9dbSNicholas Bellinger se_dev->se_dev_attrib.da_sub_dev = se_dev; 2753c66ac9dbSNicholas Bellinger 2754c66ac9dbSNicholas Bellinger se_dev->se_dev_hba = hba; 2755c66ac9dbSNicholas Bellinger dev_cg = &se_dev->se_dev_group; 2756c66ac9dbSNicholas Bellinger 2757c66ac9dbSNicholas Bellinger dev_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, 2758c66ac9dbSNicholas Bellinger GFP_KERNEL); 2759c66ac9dbSNicholas Bellinger if (!(dev_cg->default_groups)) 2760c66ac9dbSNicholas Bellinger goto out; 2761c66ac9dbSNicholas Bellinger /* 2762c66ac9dbSNicholas Bellinger * Set se_dev_su_ptr from struct se_subsystem_api returned void ptr 2763c66ac9dbSNicholas Bellinger * for ->allocate_virtdevice() 2764c66ac9dbSNicholas Bellinger * 2765c66ac9dbSNicholas Bellinger * se_dev->se_dev_ptr will be set after ->create_virtdev() 2766c66ac9dbSNicholas Bellinger * has been called successfully in the next level up in the 2767c66ac9dbSNicholas Bellinger * configfs tree for device object's struct config_group. 2768c66ac9dbSNicholas Bellinger */ 2769c66ac9dbSNicholas Bellinger se_dev->se_dev_su_ptr = t->allocate_virtdevice(hba, name); 2770c66ac9dbSNicholas Bellinger if (!(se_dev->se_dev_su_ptr)) { 2771c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate subsystem dependent pointer" 2772c66ac9dbSNicholas Bellinger " from allocate_virtdevice()\n"); 2773c66ac9dbSNicholas Bellinger goto out; 2774c66ac9dbSNicholas Bellinger } 2775c66ac9dbSNicholas Bellinger spin_lock(&se_global->g_device_lock); 2776c66ac9dbSNicholas Bellinger list_add_tail(&se_dev->g_se_dev_list, &se_global->g_se_dev_list); 2777c66ac9dbSNicholas Bellinger spin_unlock(&se_global->g_device_lock); 2778c66ac9dbSNicholas Bellinger 2779c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_dev->se_dev_group, name, 2780c66ac9dbSNicholas Bellinger &target_core_dev_cit); 2781c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_dev->se_dev_attrib.da_group, "attrib", 2782c66ac9dbSNicholas Bellinger &target_core_dev_attrib_cit); 2783c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_dev->se_dev_pr_group, "pr", 2784c66ac9dbSNicholas Bellinger &target_core_dev_pr_cit); 2785c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_dev->t10_wwn.t10_wwn_group, "wwn", 2786c66ac9dbSNicholas Bellinger &target_core_dev_wwn_cit); 2787c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_dev->t10_alua.alua_tg_pt_gps_group, 2788c66ac9dbSNicholas Bellinger "alua", &target_core_alua_tg_pt_gps_cit); 2789c66ac9dbSNicholas Bellinger dev_cg->default_groups[0] = &se_dev->se_dev_attrib.da_group; 2790c66ac9dbSNicholas Bellinger dev_cg->default_groups[1] = &se_dev->se_dev_pr_group; 2791c66ac9dbSNicholas Bellinger dev_cg->default_groups[2] = &se_dev->t10_wwn.t10_wwn_group; 2792c66ac9dbSNicholas Bellinger dev_cg->default_groups[3] = &se_dev->t10_alua.alua_tg_pt_gps_group; 2793c66ac9dbSNicholas Bellinger dev_cg->default_groups[4] = NULL; 2794c66ac9dbSNicholas Bellinger /* 2795c66ac9dbSNicholas Bellinger * Add core/$HBA/$DEV/alua/tg_pt_gps/default_tg_pt_gp 2796c66ac9dbSNicholas Bellinger */ 2797c66ac9dbSNicholas Bellinger tg_pt_gp = core_alua_allocate_tg_pt_gp(se_dev, "default_tg_pt_gp", 1); 2798c66ac9dbSNicholas Bellinger if (!(tg_pt_gp)) 2799c66ac9dbSNicholas Bellinger goto out; 2800c66ac9dbSNicholas Bellinger 2801c66ac9dbSNicholas Bellinger tg_pt_gp_cg = &T10_ALUA(se_dev)->alua_tg_pt_gps_group; 2802c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 2803c66ac9dbSNicholas Bellinger GFP_KERNEL); 2804c66ac9dbSNicholas Bellinger if (!(tg_pt_gp_cg->default_groups)) { 2805c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to allocate tg_pt_gp_cg->" 2806c66ac9dbSNicholas Bellinger "default_groups\n"); 2807c66ac9dbSNicholas Bellinger goto out; 2808c66ac9dbSNicholas Bellinger } 2809c66ac9dbSNicholas Bellinger 2810c66ac9dbSNicholas Bellinger config_group_init_type_name(&tg_pt_gp->tg_pt_gp_group, 2811c66ac9dbSNicholas Bellinger "default_tg_pt_gp", &target_core_alua_tg_pt_gp_cit); 2812c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[0] = &tg_pt_gp->tg_pt_gp_group; 2813c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[1] = NULL; 2814c66ac9dbSNicholas Bellinger T10_ALUA(se_dev)->default_tg_pt_gp = tg_pt_gp; 2815c66ac9dbSNicholas Bellinger 2816c66ac9dbSNicholas Bellinger printk(KERN_INFO "Target_Core_ConfigFS: Allocated struct se_subsystem_dev:" 2817c66ac9dbSNicholas Bellinger " %p se_dev_su_ptr: %p\n", se_dev, se_dev->se_dev_su_ptr); 2818c66ac9dbSNicholas Bellinger 2819c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 2820c66ac9dbSNicholas Bellinger return &se_dev->se_dev_group; 2821c66ac9dbSNicholas Bellinger out: 2822c66ac9dbSNicholas Bellinger if (T10_ALUA(se_dev)->default_tg_pt_gp) { 2823c66ac9dbSNicholas Bellinger core_alua_free_tg_pt_gp(T10_ALUA(se_dev)->default_tg_pt_gp); 2824c66ac9dbSNicholas Bellinger T10_ALUA(se_dev)->default_tg_pt_gp = NULL; 2825c66ac9dbSNicholas Bellinger } 2826c66ac9dbSNicholas Bellinger if (tg_pt_gp_cg) 2827c66ac9dbSNicholas Bellinger kfree(tg_pt_gp_cg->default_groups); 2828c66ac9dbSNicholas Bellinger if (dev_cg) 2829c66ac9dbSNicholas Bellinger kfree(dev_cg->default_groups); 2830c66ac9dbSNicholas Bellinger if (se_dev->se_dev_su_ptr) 2831c66ac9dbSNicholas Bellinger t->free_device(se_dev->se_dev_su_ptr); 2832c66ac9dbSNicholas Bellinger kfree(se_dev); 2833c66ac9dbSNicholas Bellinger unlock: 2834c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 2835c66ac9dbSNicholas Bellinger return NULL; 2836c66ac9dbSNicholas Bellinger } 2837c66ac9dbSNicholas Bellinger 2838c66ac9dbSNicholas Bellinger static void target_core_drop_subdev( 2839c66ac9dbSNicholas Bellinger struct config_group *group, 2840c66ac9dbSNicholas Bellinger struct config_item *item) 2841c66ac9dbSNicholas Bellinger { 2842c66ac9dbSNicholas Bellinger struct se_subsystem_dev *se_dev = container_of(to_config_group(item), 2843c66ac9dbSNicholas Bellinger struct se_subsystem_dev, se_dev_group); 2844c66ac9dbSNicholas Bellinger struct se_hba *hba; 2845c66ac9dbSNicholas Bellinger struct se_subsystem_api *t; 2846c66ac9dbSNicholas Bellinger struct config_item *df_item; 2847c66ac9dbSNicholas Bellinger struct config_group *dev_cg, *tg_pt_gp_cg; 28481f6fe7cbSNicholas Bellinger int i; 2849c66ac9dbSNicholas Bellinger 2850c66ac9dbSNicholas Bellinger hba = item_to_hba(&se_dev->se_dev_hba->hba_group.cg_item); 2851c66ac9dbSNicholas Bellinger 28521f6fe7cbSNicholas Bellinger mutex_lock(&hba->hba_access_mutex); 2853c66ac9dbSNicholas Bellinger t = hba->transport; 2854c66ac9dbSNicholas Bellinger 2855c66ac9dbSNicholas Bellinger spin_lock(&se_global->g_device_lock); 2856c66ac9dbSNicholas Bellinger list_del(&se_dev->g_se_dev_list); 2857c66ac9dbSNicholas Bellinger spin_unlock(&se_global->g_device_lock); 2858c66ac9dbSNicholas Bellinger 2859c66ac9dbSNicholas Bellinger tg_pt_gp_cg = &T10_ALUA(se_dev)->alua_tg_pt_gps_group; 2860c66ac9dbSNicholas Bellinger for (i = 0; tg_pt_gp_cg->default_groups[i]; i++) { 2861c66ac9dbSNicholas Bellinger df_item = &tg_pt_gp_cg->default_groups[i]->cg_item; 2862c66ac9dbSNicholas Bellinger tg_pt_gp_cg->default_groups[i] = NULL; 2863c66ac9dbSNicholas Bellinger config_item_put(df_item); 2864c66ac9dbSNicholas Bellinger } 2865c66ac9dbSNicholas Bellinger kfree(tg_pt_gp_cg->default_groups); 28661f6fe7cbSNicholas Bellinger /* 28671f6fe7cbSNicholas Bellinger * core_alua_free_tg_pt_gp() is called from ->default_tg_pt_gp 28681f6fe7cbSNicholas Bellinger * directly from target_core_alua_tg_pt_gp_release(). 28691f6fe7cbSNicholas Bellinger */ 2870c66ac9dbSNicholas Bellinger T10_ALUA(se_dev)->default_tg_pt_gp = NULL; 2871c66ac9dbSNicholas Bellinger 2872c66ac9dbSNicholas Bellinger dev_cg = &se_dev->se_dev_group; 2873c66ac9dbSNicholas Bellinger for (i = 0; dev_cg->default_groups[i]; i++) { 2874c66ac9dbSNicholas Bellinger df_item = &dev_cg->default_groups[i]->cg_item; 2875c66ac9dbSNicholas Bellinger dev_cg->default_groups[i] = NULL; 2876c66ac9dbSNicholas Bellinger config_item_put(df_item); 2877c66ac9dbSNicholas Bellinger } 28781f6fe7cbSNicholas Bellinger /* 28791f6fe7cbSNicholas Bellinger * The releasing of se_dev and associated se_dev->se_dev_ptr is done 28801f6fe7cbSNicholas Bellinger * from target_core_dev_item_ops->release() ->target_core_dev_release(). 28811f6fe7cbSNicholas Bellinger */ 2882c66ac9dbSNicholas Bellinger config_item_put(item); 2883c66ac9dbSNicholas Bellinger mutex_unlock(&hba->hba_access_mutex); 2884c66ac9dbSNicholas Bellinger } 2885c66ac9dbSNicholas Bellinger 2886c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_hba_group_ops = { 2887c66ac9dbSNicholas Bellinger .make_group = target_core_make_subdev, 2888c66ac9dbSNicholas Bellinger .drop_item = target_core_drop_subdev, 2889c66ac9dbSNicholas Bellinger }; 2890c66ac9dbSNicholas Bellinger 2891c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_STRUCT(target_core_hba, se_hba); 2892c66ac9dbSNicholas Bellinger #define SE_HBA_ATTR(_name, _mode) \ 2893c66ac9dbSNicholas Bellinger static struct target_core_hba_attribute \ 2894c66ac9dbSNicholas Bellinger target_core_hba_##_name = \ 2895c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR(_name, _mode, \ 2896c66ac9dbSNicholas Bellinger target_core_hba_show_attr_##_name, \ 2897c66ac9dbSNicholas Bellinger target_core_hba_store_attr_##_name); 2898c66ac9dbSNicholas Bellinger 2899c66ac9dbSNicholas Bellinger #define SE_HBA_ATTR_RO(_name) \ 2900c66ac9dbSNicholas Bellinger static struct target_core_hba_attribute \ 2901c66ac9dbSNicholas Bellinger target_core_hba_##_name = \ 2902c66ac9dbSNicholas Bellinger __CONFIGFS_EATTR_RO(_name, \ 2903c66ac9dbSNicholas Bellinger target_core_hba_show_attr_##_name); 2904c66ac9dbSNicholas Bellinger 2905c66ac9dbSNicholas Bellinger static ssize_t target_core_hba_show_attr_hba_info( 2906c66ac9dbSNicholas Bellinger struct se_hba *hba, 2907c66ac9dbSNicholas Bellinger char *page) 2908c66ac9dbSNicholas Bellinger { 2909c66ac9dbSNicholas Bellinger return sprintf(page, "HBA Index: %d plugin: %s version: %s\n", 2910c66ac9dbSNicholas Bellinger hba->hba_id, hba->transport->name, 2911c66ac9dbSNicholas Bellinger TARGET_CORE_CONFIGFS_VERSION); 2912c66ac9dbSNicholas Bellinger } 2913c66ac9dbSNicholas Bellinger 2914c66ac9dbSNicholas Bellinger SE_HBA_ATTR_RO(hba_info); 2915c66ac9dbSNicholas Bellinger 2916c66ac9dbSNicholas Bellinger static ssize_t target_core_hba_show_attr_hba_mode(struct se_hba *hba, 2917c66ac9dbSNicholas Bellinger char *page) 2918c66ac9dbSNicholas Bellinger { 2919c66ac9dbSNicholas Bellinger int hba_mode = 0; 2920c66ac9dbSNicholas Bellinger 2921c66ac9dbSNicholas Bellinger if (hba->hba_flags & HBA_FLAGS_PSCSI_MODE) 2922c66ac9dbSNicholas Bellinger hba_mode = 1; 2923c66ac9dbSNicholas Bellinger 2924c66ac9dbSNicholas Bellinger return sprintf(page, "%d\n", hba_mode); 2925c66ac9dbSNicholas Bellinger } 2926c66ac9dbSNicholas Bellinger 2927c66ac9dbSNicholas Bellinger static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba, 2928c66ac9dbSNicholas Bellinger const char *page, size_t count) 2929c66ac9dbSNicholas Bellinger { 2930c66ac9dbSNicholas Bellinger struct se_subsystem_api *transport = hba->transport; 2931c66ac9dbSNicholas Bellinger unsigned long mode_flag; 2932c66ac9dbSNicholas Bellinger int ret; 2933c66ac9dbSNicholas Bellinger 2934c66ac9dbSNicholas Bellinger if (transport->pmode_enable_hba == NULL) 2935c66ac9dbSNicholas Bellinger return -EINVAL; 2936c66ac9dbSNicholas Bellinger 2937c66ac9dbSNicholas Bellinger ret = strict_strtoul(page, 0, &mode_flag); 2938c66ac9dbSNicholas Bellinger if (ret < 0) { 2939c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to extract hba mode flag: %d\n", ret); 2940c66ac9dbSNicholas Bellinger return -EINVAL; 2941c66ac9dbSNicholas Bellinger } 2942c66ac9dbSNicholas Bellinger 2943c66ac9dbSNicholas Bellinger spin_lock(&hba->device_lock); 2944c66ac9dbSNicholas Bellinger if (!(list_empty(&hba->hba_dev_list))) { 2945c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to set hba_mode with active devices\n"); 2946c66ac9dbSNicholas Bellinger spin_unlock(&hba->device_lock); 2947c66ac9dbSNicholas Bellinger return -EINVAL; 2948c66ac9dbSNicholas Bellinger } 2949c66ac9dbSNicholas Bellinger spin_unlock(&hba->device_lock); 2950c66ac9dbSNicholas Bellinger 2951c66ac9dbSNicholas Bellinger ret = transport->pmode_enable_hba(hba, mode_flag); 2952c66ac9dbSNicholas Bellinger if (ret < 0) 2953c66ac9dbSNicholas Bellinger return -EINVAL; 2954c66ac9dbSNicholas Bellinger if (ret > 0) 2955c66ac9dbSNicholas Bellinger hba->hba_flags |= HBA_FLAGS_PSCSI_MODE; 2956c66ac9dbSNicholas Bellinger else if (ret == 0) 2957c66ac9dbSNicholas Bellinger hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; 2958c66ac9dbSNicholas Bellinger 2959c66ac9dbSNicholas Bellinger return count; 2960c66ac9dbSNicholas Bellinger } 2961c66ac9dbSNicholas Bellinger 2962c66ac9dbSNicholas Bellinger SE_HBA_ATTR(hba_mode, S_IRUGO | S_IWUSR); 2963c66ac9dbSNicholas Bellinger 2964c66ac9dbSNicholas Bellinger CONFIGFS_EATTR_OPS(target_core_hba, se_hba, hba_group); 2965c66ac9dbSNicholas Bellinger 29661f6fe7cbSNicholas Bellinger static void target_core_hba_release(struct config_item *item) 29671f6fe7cbSNicholas Bellinger { 29681f6fe7cbSNicholas Bellinger struct se_hba *hba = container_of(to_config_group(item), 29691f6fe7cbSNicholas Bellinger struct se_hba, hba_group); 29701f6fe7cbSNicholas Bellinger core_delete_hba(hba); 29711f6fe7cbSNicholas Bellinger } 29721f6fe7cbSNicholas Bellinger 2973c66ac9dbSNicholas Bellinger static struct configfs_attribute *target_core_hba_attrs[] = { 2974c66ac9dbSNicholas Bellinger &target_core_hba_hba_info.attr, 2975c66ac9dbSNicholas Bellinger &target_core_hba_hba_mode.attr, 2976c66ac9dbSNicholas Bellinger NULL, 2977c66ac9dbSNicholas Bellinger }; 2978c66ac9dbSNicholas Bellinger 2979c66ac9dbSNicholas Bellinger static struct configfs_item_operations target_core_hba_item_ops = { 29801f6fe7cbSNicholas Bellinger .release = target_core_hba_release, 2981c66ac9dbSNicholas Bellinger .show_attribute = target_core_hba_attr_show, 2982c66ac9dbSNicholas Bellinger .store_attribute = target_core_hba_attr_store, 2983c66ac9dbSNicholas Bellinger }; 2984c66ac9dbSNicholas Bellinger 2985c66ac9dbSNicholas Bellinger static struct config_item_type target_core_hba_cit = { 2986c66ac9dbSNicholas Bellinger .ct_item_ops = &target_core_hba_item_ops, 2987c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_hba_group_ops, 2988c66ac9dbSNicholas Bellinger .ct_attrs = target_core_hba_attrs, 2989c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 2990c66ac9dbSNicholas Bellinger }; 2991c66ac9dbSNicholas Bellinger 2992c66ac9dbSNicholas Bellinger static struct config_group *target_core_call_addhbatotarget( 2993c66ac9dbSNicholas Bellinger struct config_group *group, 2994c66ac9dbSNicholas Bellinger const char *name) 2995c66ac9dbSNicholas Bellinger { 2996c66ac9dbSNicholas Bellinger char *se_plugin_str, *str, *str2; 2997c66ac9dbSNicholas Bellinger struct se_hba *hba; 2998c66ac9dbSNicholas Bellinger char buf[TARGET_CORE_NAME_MAX_LEN]; 2999c66ac9dbSNicholas Bellinger unsigned long plugin_dep_id = 0; 3000c66ac9dbSNicholas Bellinger int ret; 3001c66ac9dbSNicholas Bellinger 3002c66ac9dbSNicholas Bellinger memset(buf, 0, TARGET_CORE_NAME_MAX_LEN); 3003c66ac9dbSNicholas Bellinger if (strlen(name) > TARGET_CORE_NAME_MAX_LEN) { 3004c66ac9dbSNicholas Bellinger printk(KERN_ERR "Passed *name strlen(): %d exceeds" 3005c66ac9dbSNicholas Bellinger " TARGET_CORE_NAME_MAX_LEN: %d\n", (int)strlen(name), 3006c66ac9dbSNicholas Bellinger TARGET_CORE_NAME_MAX_LEN); 3007c66ac9dbSNicholas Bellinger return ERR_PTR(-ENAMETOOLONG); 3008c66ac9dbSNicholas Bellinger } 3009c66ac9dbSNicholas Bellinger snprintf(buf, TARGET_CORE_NAME_MAX_LEN, "%s", name); 3010c66ac9dbSNicholas Bellinger 3011c66ac9dbSNicholas Bellinger str = strstr(buf, "_"); 3012c66ac9dbSNicholas Bellinger if (!(str)) { 3013c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to locate \"_\" for $SUBSYSTEM_PLUGIN_$HOST_ID\n"); 3014c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 3015c66ac9dbSNicholas Bellinger } 3016c66ac9dbSNicholas Bellinger se_plugin_str = buf; 3017c66ac9dbSNicholas Bellinger /* 3018c66ac9dbSNicholas Bellinger * Special case for subsystem plugins that have "_" in their names. 3019c66ac9dbSNicholas Bellinger * Namely rd_direct and rd_mcp.. 3020c66ac9dbSNicholas Bellinger */ 3021c66ac9dbSNicholas Bellinger str2 = strstr(str+1, "_"); 3022c66ac9dbSNicholas Bellinger if ((str2)) { 3023c66ac9dbSNicholas Bellinger *str2 = '\0'; /* Terminate for *se_plugin_str */ 3024c66ac9dbSNicholas Bellinger str2++; /* Skip to start of plugin dependent ID */ 3025c66ac9dbSNicholas Bellinger str = str2; 3026c66ac9dbSNicholas Bellinger } else { 3027c66ac9dbSNicholas Bellinger *str = '\0'; /* Terminate for *se_plugin_str */ 3028c66ac9dbSNicholas Bellinger str++; /* Skip to start of plugin dependent ID */ 3029c66ac9dbSNicholas Bellinger } 3030c66ac9dbSNicholas Bellinger 3031c66ac9dbSNicholas Bellinger ret = strict_strtoul(str, 0, &plugin_dep_id); 3032c66ac9dbSNicholas Bellinger if (ret < 0) { 3033c66ac9dbSNicholas Bellinger printk(KERN_ERR "strict_strtoul() returned %d for" 3034c66ac9dbSNicholas Bellinger " plugin_dep_id\n", ret); 3035c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 3036c66ac9dbSNicholas Bellinger } 3037c66ac9dbSNicholas Bellinger /* 3038c66ac9dbSNicholas Bellinger * Load up TCM subsystem plugins if they have not already been loaded. 3039c66ac9dbSNicholas Bellinger */ 3040c66ac9dbSNicholas Bellinger if (transport_subsystem_check_init() < 0) 3041c66ac9dbSNicholas Bellinger return ERR_PTR(-EINVAL); 3042c66ac9dbSNicholas Bellinger 3043c66ac9dbSNicholas Bellinger hba = core_alloc_hba(se_plugin_str, plugin_dep_id, 0); 3044c66ac9dbSNicholas Bellinger if (IS_ERR(hba)) 3045c66ac9dbSNicholas Bellinger return ERR_CAST(hba); 3046c66ac9dbSNicholas Bellinger 3047c66ac9dbSNicholas Bellinger config_group_init_type_name(&hba->hba_group, name, 3048c66ac9dbSNicholas Bellinger &target_core_hba_cit); 3049c66ac9dbSNicholas Bellinger 3050c66ac9dbSNicholas Bellinger return &hba->hba_group; 3051c66ac9dbSNicholas Bellinger } 3052c66ac9dbSNicholas Bellinger 3053c66ac9dbSNicholas Bellinger static void target_core_call_delhbafromtarget( 3054c66ac9dbSNicholas Bellinger struct config_group *group, 3055c66ac9dbSNicholas Bellinger struct config_item *item) 3056c66ac9dbSNicholas Bellinger { 30571f6fe7cbSNicholas Bellinger /* 30581f6fe7cbSNicholas Bellinger * core_delete_hba() is called from target_core_hba_item_ops->release() 30591f6fe7cbSNicholas Bellinger * -> target_core_hba_release() 30601f6fe7cbSNicholas Bellinger */ 3061c66ac9dbSNicholas Bellinger config_item_put(item); 3062c66ac9dbSNicholas Bellinger } 3063c66ac9dbSNicholas Bellinger 3064c66ac9dbSNicholas Bellinger static struct configfs_group_operations target_core_group_ops = { 3065c66ac9dbSNicholas Bellinger .make_group = target_core_call_addhbatotarget, 3066c66ac9dbSNicholas Bellinger .drop_item = target_core_call_delhbafromtarget, 3067c66ac9dbSNicholas Bellinger }; 3068c66ac9dbSNicholas Bellinger 3069c66ac9dbSNicholas Bellinger static struct config_item_type target_core_cit = { 3070c66ac9dbSNicholas Bellinger .ct_item_ops = NULL, 3071c66ac9dbSNicholas Bellinger .ct_group_ops = &target_core_group_ops, 3072c66ac9dbSNicholas Bellinger .ct_attrs = NULL, 3073c66ac9dbSNicholas Bellinger .ct_owner = THIS_MODULE, 3074c66ac9dbSNicholas Bellinger }; 3075c66ac9dbSNicholas Bellinger 3076c66ac9dbSNicholas Bellinger /* Stop functions for struct config_item_type target_core_hba_cit */ 3077c66ac9dbSNicholas Bellinger 307854550fabSAxel Lin static int __init target_core_init_configfs(void) 3079c66ac9dbSNicholas Bellinger { 3080c66ac9dbSNicholas Bellinger struct config_group *target_cg, *hba_cg = NULL, *alua_cg = NULL; 3081c66ac9dbSNicholas Bellinger struct config_group *lu_gp_cg = NULL; 3082c66ac9dbSNicholas Bellinger struct configfs_subsystem *subsys; 3083c66ac9dbSNicholas Bellinger struct t10_alua_lu_gp *lu_gp; 3084c66ac9dbSNicholas Bellinger int ret; 3085c66ac9dbSNicholas Bellinger 3086c66ac9dbSNicholas Bellinger printk(KERN_INFO "TARGET_CORE[0]: Loading Generic Kernel Storage" 3087c66ac9dbSNicholas Bellinger " Engine: %s on %s/%s on "UTS_RELEASE"\n", 3088c66ac9dbSNicholas Bellinger TARGET_CORE_VERSION, utsname()->sysname, utsname()->machine); 3089c66ac9dbSNicholas Bellinger 3090c66ac9dbSNicholas Bellinger subsys = target_core_subsystem[0]; 3091c66ac9dbSNicholas Bellinger config_group_init(&subsys->su_group); 3092c66ac9dbSNicholas Bellinger mutex_init(&subsys->su_mutex); 3093c66ac9dbSNicholas Bellinger 3094c66ac9dbSNicholas Bellinger INIT_LIST_HEAD(&g_tf_list); 3095c66ac9dbSNicholas Bellinger mutex_init(&g_tf_lock); 3096c66ac9dbSNicholas Bellinger init_scsi_index_table(); 3097c66ac9dbSNicholas Bellinger ret = init_se_global(); 3098c66ac9dbSNicholas Bellinger if (ret < 0) 3099c66ac9dbSNicholas Bellinger return -1; 3100c66ac9dbSNicholas Bellinger /* 3101c66ac9dbSNicholas Bellinger * Create $CONFIGFS/target/core default group for HBA <-> Storage Object 3102c66ac9dbSNicholas Bellinger * and ALUA Logical Unit Group and Target Port Group infrastructure. 3103c66ac9dbSNicholas Bellinger */ 3104c66ac9dbSNicholas Bellinger target_cg = &subsys->su_group; 3105c66ac9dbSNicholas Bellinger target_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 3106c66ac9dbSNicholas Bellinger GFP_KERNEL); 3107c66ac9dbSNicholas Bellinger if (!(target_cg->default_groups)) { 3108c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to allocate target_cg->default_groups\n"); 3109c66ac9dbSNicholas Bellinger goto out_global; 3110c66ac9dbSNicholas Bellinger } 3111c66ac9dbSNicholas Bellinger 3112c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_global->target_core_hbagroup, 3113c66ac9dbSNicholas Bellinger "core", &target_core_cit); 3114c66ac9dbSNicholas Bellinger target_cg->default_groups[0] = &se_global->target_core_hbagroup; 3115c66ac9dbSNicholas Bellinger target_cg->default_groups[1] = NULL; 3116c66ac9dbSNicholas Bellinger /* 3117c66ac9dbSNicholas Bellinger * Create ALUA infrastructure under /sys/kernel/config/target/core/alua/ 3118c66ac9dbSNicholas Bellinger */ 3119c66ac9dbSNicholas Bellinger hba_cg = &se_global->target_core_hbagroup; 3120c66ac9dbSNicholas Bellinger hba_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 3121c66ac9dbSNicholas Bellinger GFP_KERNEL); 3122c66ac9dbSNicholas Bellinger if (!(hba_cg->default_groups)) { 3123c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to allocate hba_cg->default_groups\n"); 3124c66ac9dbSNicholas Bellinger goto out_global; 3125c66ac9dbSNicholas Bellinger } 3126c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_global->alua_group, 3127c66ac9dbSNicholas Bellinger "alua", &target_core_alua_cit); 3128c66ac9dbSNicholas Bellinger hba_cg->default_groups[0] = &se_global->alua_group; 3129c66ac9dbSNicholas Bellinger hba_cg->default_groups[1] = NULL; 3130c66ac9dbSNicholas Bellinger /* 3131c66ac9dbSNicholas Bellinger * Add ALUA Logical Unit Group and Target Port Group ConfigFS 3132c66ac9dbSNicholas Bellinger * groups under /sys/kernel/config/target/core/alua/ 3133c66ac9dbSNicholas Bellinger */ 3134c66ac9dbSNicholas Bellinger alua_cg = &se_global->alua_group; 3135c66ac9dbSNicholas Bellinger alua_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 3136c66ac9dbSNicholas Bellinger GFP_KERNEL); 3137c66ac9dbSNicholas Bellinger if (!(alua_cg->default_groups)) { 3138c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to allocate alua_cg->default_groups\n"); 3139c66ac9dbSNicholas Bellinger goto out_global; 3140c66ac9dbSNicholas Bellinger } 3141c66ac9dbSNicholas Bellinger 3142c66ac9dbSNicholas Bellinger config_group_init_type_name(&se_global->alua_lu_gps_group, 3143c66ac9dbSNicholas Bellinger "lu_gps", &target_core_alua_lu_gps_cit); 3144c66ac9dbSNicholas Bellinger alua_cg->default_groups[0] = &se_global->alua_lu_gps_group; 3145c66ac9dbSNicholas Bellinger alua_cg->default_groups[1] = NULL; 3146c66ac9dbSNicholas Bellinger /* 3147c66ac9dbSNicholas Bellinger * Add core/alua/lu_gps/default_lu_gp 3148c66ac9dbSNicholas Bellinger */ 3149c66ac9dbSNicholas Bellinger lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1); 3150c66ac9dbSNicholas Bellinger if (IS_ERR(lu_gp)) 3151c66ac9dbSNicholas Bellinger goto out_global; 3152c66ac9dbSNicholas Bellinger 3153c66ac9dbSNicholas Bellinger lu_gp_cg = &se_global->alua_lu_gps_group; 3154c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 3155c66ac9dbSNicholas Bellinger GFP_KERNEL); 3156c66ac9dbSNicholas Bellinger if (!(lu_gp_cg->default_groups)) { 3157c66ac9dbSNicholas Bellinger printk(KERN_ERR "Unable to allocate lu_gp_cg->default_groups\n"); 3158c66ac9dbSNicholas Bellinger goto out_global; 3159c66ac9dbSNicholas Bellinger } 3160c66ac9dbSNicholas Bellinger 3161c66ac9dbSNicholas Bellinger config_group_init_type_name(&lu_gp->lu_gp_group, "default_lu_gp", 3162c66ac9dbSNicholas Bellinger &target_core_alua_lu_gp_cit); 3163c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[0] = &lu_gp->lu_gp_group; 3164c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[1] = NULL; 3165c66ac9dbSNicholas Bellinger se_global->default_lu_gp = lu_gp; 3166c66ac9dbSNicholas Bellinger /* 3167c66ac9dbSNicholas Bellinger * Register the target_core_mod subsystem with configfs. 3168c66ac9dbSNicholas Bellinger */ 3169c66ac9dbSNicholas Bellinger ret = configfs_register_subsystem(subsys); 3170c66ac9dbSNicholas Bellinger if (ret < 0) { 3171c66ac9dbSNicholas Bellinger printk(KERN_ERR "Error %d while registering subsystem %s\n", 3172c66ac9dbSNicholas Bellinger ret, subsys->su_group.cg_item.ci_namebuf); 3173c66ac9dbSNicholas Bellinger goto out_global; 3174c66ac9dbSNicholas Bellinger } 3175c66ac9dbSNicholas Bellinger printk(KERN_INFO "TARGET_CORE[0]: Initialized ConfigFS Fabric" 3176c66ac9dbSNicholas Bellinger " Infrastructure: "TARGET_CORE_CONFIGFS_VERSION" on %s/%s" 3177c66ac9dbSNicholas Bellinger " on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); 3178c66ac9dbSNicholas Bellinger /* 3179c66ac9dbSNicholas Bellinger * Register built-in RAMDISK subsystem logic for virtual LUN 0 3180c66ac9dbSNicholas Bellinger */ 3181c66ac9dbSNicholas Bellinger ret = rd_module_init(); 3182c66ac9dbSNicholas Bellinger if (ret < 0) 3183c66ac9dbSNicholas Bellinger goto out; 3184c66ac9dbSNicholas Bellinger 3185c66ac9dbSNicholas Bellinger if (core_dev_setup_virtual_lun0() < 0) 3186c66ac9dbSNicholas Bellinger goto out; 3187c66ac9dbSNicholas Bellinger 3188c66ac9dbSNicholas Bellinger return 0; 3189c66ac9dbSNicholas Bellinger 3190c66ac9dbSNicholas Bellinger out: 3191c66ac9dbSNicholas Bellinger configfs_unregister_subsystem(subsys); 3192c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3193c66ac9dbSNicholas Bellinger rd_module_exit(); 3194c66ac9dbSNicholas Bellinger out_global: 3195c66ac9dbSNicholas Bellinger if (se_global->default_lu_gp) { 3196c66ac9dbSNicholas Bellinger core_alua_free_lu_gp(se_global->default_lu_gp); 3197c66ac9dbSNicholas Bellinger se_global->default_lu_gp = NULL; 3198c66ac9dbSNicholas Bellinger } 3199c66ac9dbSNicholas Bellinger if (lu_gp_cg) 3200c66ac9dbSNicholas Bellinger kfree(lu_gp_cg->default_groups); 3201c66ac9dbSNicholas Bellinger if (alua_cg) 3202c66ac9dbSNicholas Bellinger kfree(alua_cg->default_groups); 3203c66ac9dbSNicholas Bellinger if (hba_cg) 3204c66ac9dbSNicholas Bellinger kfree(hba_cg->default_groups); 3205c66ac9dbSNicholas Bellinger kfree(target_cg->default_groups); 3206c66ac9dbSNicholas Bellinger release_se_global(); 3207c66ac9dbSNicholas Bellinger return -1; 3208c66ac9dbSNicholas Bellinger } 3209c66ac9dbSNicholas Bellinger 321054550fabSAxel Lin static void __exit target_core_exit_configfs(void) 3211c66ac9dbSNicholas Bellinger { 3212c66ac9dbSNicholas Bellinger struct configfs_subsystem *subsys; 3213c66ac9dbSNicholas Bellinger struct config_group *hba_cg, *alua_cg, *lu_gp_cg; 3214c66ac9dbSNicholas Bellinger struct config_item *item; 3215c66ac9dbSNicholas Bellinger int i; 3216c66ac9dbSNicholas Bellinger 3217c66ac9dbSNicholas Bellinger se_global->in_shutdown = 1; 3218c66ac9dbSNicholas Bellinger subsys = target_core_subsystem[0]; 3219c66ac9dbSNicholas Bellinger 3220c66ac9dbSNicholas Bellinger lu_gp_cg = &se_global->alua_lu_gps_group; 3221c66ac9dbSNicholas Bellinger for (i = 0; lu_gp_cg->default_groups[i]; i++) { 3222c66ac9dbSNicholas Bellinger item = &lu_gp_cg->default_groups[i]->cg_item; 3223c66ac9dbSNicholas Bellinger lu_gp_cg->default_groups[i] = NULL; 3224c66ac9dbSNicholas Bellinger config_item_put(item); 3225c66ac9dbSNicholas Bellinger } 3226c66ac9dbSNicholas Bellinger kfree(lu_gp_cg->default_groups); 32277c2bf6e9SNicholas Bellinger lu_gp_cg->default_groups = NULL; 3228c66ac9dbSNicholas Bellinger 3229c66ac9dbSNicholas Bellinger alua_cg = &se_global->alua_group; 3230c66ac9dbSNicholas Bellinger for (i = 0; alua_cg->default_groups[i]; i++) { 3231c66ac9dbSNicholas Bellinger item = &alua_cg->default_groups[i]->cg_item; 3232c66ac9dbSNicholas Bellinger alua_cg->default_groups[i] = NULL; 3233c66ac9dbSNicholas Bellinger config_item_put(item); 3234c66ac9dbSNicholas Bellinger } 3235c66ac9dbSNicholas Bellinger kfree(alua_cg->default_groups); 32367c2bf6e9SNicholas Bellinger alua_cg->default_groups = NULL; 3237c66ac9dbSNicholas Bellinger 3238c66ac9dbSNicholas Bellinger hba_cg = &se_global->target_core_hbagroup; 3239c66ac9dbSNicholas Bellinger for (i = 0; hba_cg->default_groups[i]; i++) { 3240c66ac9dbSNicholas Bellinger item = &hba_cg->default_groups[i]->cg_item; 3241c66ac9dbSNicholas Bellinger hba_cg->default_groups[i] = NULL; 3242c66ac9dbSNicholas Bellinger config_item_put(item); 3243c66ac9dbSNicholas Bellinger } 3244c66ac9dbSNicholas Bellinger kfree(hba_cg->default_groups); 32457c2bf6e9SNicholas Bellinger hba_cg->default_groups = NULL; 32467c2bf6e9SNicholas Bellinger /* 32477c2bf6e9SNicholas Bellinger * We expect subsys->su_group.default_groups to be released 32487c2bf6e9SNicholas Bellinger * by configfs subsystem provider logic.. 32497c2bf6e9SNicholas Bellinger */ 32507c2bf6e9SNicholas Bellinger configfs_unregister_subsystem(subsys); 3251c66ac9dbSNicholas Bellinger kfree(subsys->su_group.default_groups); 3252c66ac9dbSNicholas Bellinger 32537c2bf6e9SNicholas Bellinger core_alua_free_lu_gp(se_global->default_lu_gp); 32547c2bf6e9SNicholas Bellinger se_global->default_lu_gp = NULL; 32557c2bf6e9SNicholas Bellinger 3256c66ac9dbSNicholas Bellinger printk(KERN_INFO "TARGET_CORE[0]: Released ConfigFS Fabric" 3257c66ac9dbSNicholas Bellinger " Infrastructure\n"); 3258c66ac9dbSNicholas Bellinger 3259c66ac9dbSNicholas Bellinger core_dev_release_virtual_lun0(); 3260c66ac9dbSNicholas Bellinger rd_module_exit(); 3261c66ac9dbSNicholas Bellinger release_se_global(); 3262c66ac9dbSNicholas Bellinger 3263c66ac9dbSNicholas Bellinger return; 3264c66ac9dbSNicholas Bellinger } 3265c66ac9dbSNicholas Bellinger 3266c66ac9dbSNicholas Bellinger MODULE_DESCRIPTION("Target_Core_Mod/ConfigFS"); 3267c66ac9dbSNicholas Bellinger MODULE_AUTHOR("nab@Linux-iSCSI.org"); 3268c66ac9dbSNicholas Bellinger MODULE_LICENSE("GPL"); 3269c66ac9dbSNicholas Bellinger 3270c66ac9dbSNicholas Bellinger module_init(target_core_init_configfs); 3271c66ac9dbSNicholas Bellinger module_exit(target_core_exit_configfs); 3272