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drivers/target/target_core_fabric_configfs.c
34.4 KB
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/******************************************************************************* * Filename: target_core_fabric_configfs.c * * This file contains generic fabric module configfs infrastructure for * TCM v4.x code * |
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* Copyright (c) 2010,2011 Rising Tide Systems * Copyright (c) 2010,2011 Linux-iSCSI.org |
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* |
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* Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org> |
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* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. ****************************************************************************/ #include <linux/module.h> #include <linux/moduleparam.h> |
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#include <generated/utsrelease.h> #include <linux/utsname.h> #include <linux/init.h> #include <linux/fs.h> #include <linux/namei.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/delay.h> #include <linux/unistd.h> #include <linux/string.h> #include <linux/syscalls.h> #include <linux/configfs.h> #include <target/target_core_base.h> #include <target/target_core_device.h> #include <target/target_core_tpg.h> #include <target/target_core_transport.h> #include <target/target_core_fabric_ops.h> #include <target/target_core_fabric_configfs.h> #include <target/target_core_configfs.h> #include <target/configfs_macros.h> #include "target_core_alua.h" #include "target_core_hba.h" #include "target_core_pr.h" |
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#include "target_core_stat.h" |
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#define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ { \ struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ \ cit->ct_item_ops = _item_ops; \ cit->ct_group_ops = _group_ops; \ cit->ct_attrs = _attrs; \ cit->ct_owner = tf->tf_module; \ |
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pr_debug("Setup generic %s ", __stringify(_name)); \ |
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} /* Start of tfc_tpg_mappedlun_cit */ static int target_fabric_mappedlun_link( struct config_item *lun_acl_ci, struct config_item *lun_ci) { struct se_dev_entry *deve; struct se_lun *lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), struct se_lun_acl, se_lun_group); struct se_portal_group *se_tpg; struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; int ret = 0, lun_access; /* * Ensure that the source port exists */ |
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if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" |
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"_tpg does not exist "); return -EINVAL; } se_tpg = lun->lun_sep->sep_tpg; nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; tpg_ci = &nacl_ci->ci_group->cg_item; wwn_ci = &tpg_ci->ci_group->cg_item; tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; wwn_ci_s = &tpg_ci_s->ci_group->cg_item; /* * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT */ if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { |
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pr_err("Illegal Initiator ACL SymLink outside of %s ", |
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config_item_name(wwn_ci)); return -EINVAL; } if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { |
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pr_err("Illegal Initiator ACL Symlink outside of %s" |
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" TPGT: %s ", config_item_name(wwn_ci), config_item_name(tpg_ci)); return -EINVAL; } /* * If this struct se_node_acl was dynamically generated with * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, * which be will write protected (READ-ONLY) when * tpg_1/attrib/demo_mode_write_protect=1 */ spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); deve = &lacl->se_lun_nacl->device_list[lacl->mapped_lun]; if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) lun_access = deve->lun_flags; else lun_access = |
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(se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
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se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : TRANSPORT_LUNFLAGS_READ_WRITE; spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); /* * Determine the actual mapped LUN value user wants.. * * This value is what the SCSI Initiator actually sees the * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. */ ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun->unpacked_lun, lun_access); return (ret < 0) ? -EINVAL : 0; } static int target_fabric_mappedlun_unlink( struct config_item *lun_acl_ci, struct config_item *lun_ci) { struct se_lun *lun; struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), struct se_lun_acl, se_lun_group); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve = &nacl->device_list[lacl->mapped_lun]; struct se_portal_group *se_tpg; /* * Determine if the underlying MappedLUN has already been released.. */ |
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if (!deve->se_lun) |
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return 0; lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); se_tpg = lun->lun_sep->sep_tpg; core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); return 0; } CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ __CONFIGFS_EATTR(_name, _mode, \ target_fabric_mappedlun_show_##_name, \ target_fabric_mappedlun_store_##_name); static ssize_t target_fabric_mappedlun_show_write_protect( struct se_lun_acl *lacl, char *page) { struct se_node_acl *se_nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t len; spin_lock_irq(&se_nacl->device_list_lock); deve = &se_nacl->device_list[lacl->mapped_lun]; len = sprintf(page, "%d ", (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0); spin_unlock_irq(&se_nacl->device_list_lock); return len; } static ssize_t target_fabric_mappedlun_store_write_protect( struct se_lun_acl *lacl, const char *page, size_t count) { struct se_node_acl *se_nacl = lacl->se_lun_nacl; struct se_portal_group *se_tpg = se_nacl->se_tpg; unsigned long op; if (strict_strtoul(page, 0, &op)) return -EINVAL; if ((op != 1) && (op != 0)) return -EINVAL; core_update_device_list_access(lacl->mapped_lun, (op) ? TRANSPORT_LUNFLAGS_READ_ONLY : TRANSPORT_LUNFLAGS_READ_WRITE, lacl->se_lun_nacl); |
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pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
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" Mapped LUN: %u Write Protect bit to %s ", |
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se_tpg->se_tpg_tfo->get_fabric_name(), |
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lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); return count; } TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); |
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static void target_fabric_mappedlun_release(struct config_item *item) { struct se_lun_acl *lacl = container_of(to_config_group(item), struct se_lun_acl, se_lun_group); struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; core_dev_free_initiator_node_lun_acl(se_tpg, lacl); } |
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static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { &target_fabric_mappedlun_write_protect.attr, NULL, }; static struct configfs_item_operations target_fabric_mappedlun_item_ops = { |
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.release = target_fabric_mappedlun_release, |
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.show_attribute = target_fabric_mappedlun_attr_show, .store_attribute = target_fabric_mappedlun_attr_store, .allow_link = target_fabric_mappedlun_link, .drop_link = target_fabric_mappedlun_unlink, }; TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, target_fabric_mappedlun_attrs); /* End of tfc_tpg_mappedlun_cit */ |
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/* Start of tfc_tpg_mappedlun_port_cit */ static struct config_group *target_core_mappedlun_stat_mkdir( struct config_group *group, const char *name) { return ERR_PTR(-ENOSYS); } static void target_core_mappedlun_stat_rmdir( struct config_group *group, struct config_item *item) { return; } static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { .make_group = target_core_mappedlun_stat_mkdir, .drop_item = target_core_mappedlun_stat_rmdir, }; TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, NULL); /* End of tfc_tpg_mappedlun_port_cit */ |
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/* Start of tfc_tpg_nacl_attrib_cit */ CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { .show_attribute = target_fabric_nacl_attrib_attr_show, .store_attribute = target_fabric_nacl_attrib_attr_store, }; TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL); /* End of tfc_tpg_nacl_attrib_cit */ /* Start of tfc_tpg_nacl_auth_cit */ CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { .show_attribute = target_fabric_nacl_auth_attr_show, .store_attribute = target_fabric_nacl_auth_attr_store, }; TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL); /* End of tfc_tpg_nacl_auth_cit */ /* Start of tfc_tpg_nacl_param_cit */ CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); static struct configfs_item_operations target_fabric_nacl_param_item_ops = { .show_attribute = target_fabric_nacl_param_attr_show, .store_attribute = target_fabric_nacl_param_attr_store, }; TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL); /* End of tfc_tpg_nacl_param_cit */ /* Start of tfc_tpg_nacl_base_cit */ CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); static struct config_group *target_fabric_make_mappedlun( struct config_group *group, const char *name) { struct se_node_acl *se_nacl = container_of(group, struct se_node_acl, acl_group); struct se_portal_group *se_tpg = se_nacl->se_tpg; struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; struct se_lun_acl *lacl; struct config_item *acl_ci; |
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struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
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char *buf; unsigned long mapped_lun; int ret = 0; acl_ci = &group->cg_item; |
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if (!acl_ci) { pr_err("Unable to locatel acl_ci "); |
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return NULL; } buf = kzalloc(strlen(name) + 1, GFP_KERNEL); |
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if (!buf) { pr_err("Unable to allocate memory for name buf "); |
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return ERR_PTR(-ENOMEM); } snprintf(buf, strlen(name) + 1, "%s", name); /* * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. */ if (strstr(buf, "lun_") != buf) { |
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pr_err("Unable to locate \"lun_\" from buf: %s" |
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" name: %s ", buf, name); ret = -EINVAL; goto out; } /* * Determine the Mapped LUN value. This is what the SCSI Initiator * Port will actually see. */ if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) { ret = -EINVAL; goto out; } lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun, config_item_name(acl_ci), &ret); |
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if (!lacl) { |
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ret = -EINVAL; |
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goto out; |
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} lacl_cg = &lacl->se_lun_group; lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, GFP_KERNEL); if (!lacl_cg->default_groups) { |
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pr_err("Unable to allocate lacl_cg->default_groups "); |
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ret = -ENOMEM; goto out; } |
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config_group_init_type_name(&lacl->se_lun_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); |
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config_group_init_type_name(&lacl->ml_stat_grps.stat_group, "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; lacl_cg->default_groups[1] = NULL; |
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ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
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ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, GFP_KERNEL); if (!ml_stat_grp->default_groups) { |
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pr_err("Unable to allocate ml_stat_grp->default_groups "); |
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ret = -ENOMEM; goto out; } target_stat_setup_mappedlun_default_groups(lacl); |
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kfree(buf); return &lacl->se_lun_group; out: |
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if (lacl_cg) kfree(lacl_cg->default_groups); |
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kfree(buf); return ERR_PTR(ret); } static void target_fabric_drop_mappedlun( struct config_group *group, struct config_item *item) { |
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struct se_lun_acl *lacl = container_of(to_config_group(item), struct se_lun_acl, se_lun_group); struct config_item *df_item; struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; int i; |
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ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
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for (i = 0; ml_stat_grp->default_groups[i]; i++) { df_item = &ml_stat_grp->default_groups[i]->cg_item; ml_stat_grp->default_groups[i] = NULL; config_item_put(df_item); } kfree(ml_stat_grp->default_groups); lacl_cg = &lacl->se_lun_group; for (i = 0; lacl_cg->default_groups[i]; i++) { df_item = &lacl_cg->default_groups[i]->cg_item; lacl_cg->default_groups[i] = NULL; config_item_put(df_item); } kfree(lacl_cg->default_groups); |
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config_item_put(item); |
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} static void target_fabric_nacl_base_release(struct config_item *item) { struct se_node_acl *se_nacl = container_of(to_config_group(item), struct se_node_acl, acl_group); struct se_portal_group *se_tpg = se_nacl->se_tpg; struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; tf->tf_ops.fabric_drop_nodeacl(se_nacl); |
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} static struct configfs_item_operations target_fabric_nacl_base_item_ops = { |
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.release = target_fabric_nacl_base_release, |
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.show_attribute = target_fabric_nacl_base_attr_show, .store_attribute = target_fabric_nacl_base_attr_store, }; static struct configfs_group_operations target_fabric_nacl_base_group_ops = { .make_group = target_fabric_make_mappedlun, .drop_item = target_fabric_drop_mappedlun, }; TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, &target_fabric_nacl_base_group_ops, NULL); /* End of tfc_tpg_nacl_base_cit */ |
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/* Start of tfc_node_fabric_stats_cit */ /* * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] */ TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); /* End of tfc_wwn_fabric_stats_cit */ |
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/* Start of tfc_tpg_nacl_cit */ static struct config_group *target_fabric_make_nodeacl( struct config_group *group, const char *name) { struct se_portal_group *se_tpg = container_of(group, struct se_portal_group, tpg_acl_group); struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; struct se_node_acl *se_nacl; struct config_group *nacl_cg; |
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if (!tf->tf_ops.fabric_make_nodeacl) { pr_err("tf->tf_ops.fabric_make_nodeacl is NULL "); |
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return ERR_PTR(-ENOSYS); } se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); if (IS_ERR(se_nacl)) |
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return ERR_CAST(se_nacl); |
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nacl_cg = &se_nacl->acl_group; nacl_cg->default_groups = se_nacl->acl_default_groups; nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; nacl_cg->default_groups[2] = &se_nacl->acl_param_group; |
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nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; nacl_cg->default_groups[4] = NULL; |
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config_group_init_type_name(&se_nacl->acl_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", &TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit); config_group_init_type_name(&se_nacl->acl_auth_group, "auth", &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); config_group_init_type_name(&se_nacl->acl_param_group, "param", &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); |
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config_group_init_type_name(&se_nacl->acl_fabric_stat_group, "fabric_statistics", &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); |
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return &se_nacl->acl_group; } static void target_fabric_drop_nodeacl( struct config_group *group, struct config_item *item) { |
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struct se_node_acl *se_nacl = container_of(to_config_group(item), struct se_node_acl, acl_group); struct config_item *df_item; struct config_group *nacl_cg; int i; nacl_cg = &se_nacl->acl_group; for (i = 0; nacl_cg->default_groups[i]; i++) { df_item = &nacl_cg->default_groups[i]->cg_item; nacl_cg->default_groups[i] = NULL; config_item_put(df_item); } |
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/* * struct se_node_acl free is done in target_fabric_nacl_base_release() */ |
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config_item_put(item); |
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} static struct configfs_group_operations target_fabric_nacl_group_ops = { .make_group = target_fabric_make_nodeacl, .drop_item = target_fabric_drop_nodeacl, }; TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); /* End of tfc_tpg_nacl_cit */ /* Start of tfc_tpg_np_base_cit */ CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); |
1f6fe7cba [SCSI] target: fi... |
543 544 545 546 547 548 549 550 551 |
static void target_fabric_np_base_release(struct config_item *item) { struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), struct se_tpg_np, tpg_np_group); struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; tf->tf_ops.fabric_drop_np(se_tpg_np); } |
c66ac9db8 [SCSI] target: Ad... |
552 |
static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cba [SCSI] target: fi... |
553 |
.release = target_fabric_np_base_release, |
c66ac9db8 [SCSI] target: Ad... |
554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 |
.show_attribute = target_fabric_np_base_attr_show, .store_attribute = target_fabric_np_base_attr_store, }; TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL); /* End of tfc_tpg_np_base_cit */ /* Start of tfc_tpg_np_cit */ static struct config_group *target_fabric_make_np( struct config_group *group, const char *name) { struct se_portal_group *se_tpg = container_of(group, struct se_portal_group, tpg_np_group); struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; struct se_tpg_np *se_tpg_np; |
6708bb27b target: Follow up... |
572 573 574 |
if (!tf->tf_ops.fabric_make_np) { pr_err("tf->tf_ops.fabric_make_np is NULL "); |
c66ac9db8 [SCSI] target: Ad... |
575 576 577 578 |
return ERR_PTR(-ENOSYS); } se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); |
6708bb27b target: Follow up... |
579 |
if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db8 [SCSI] target: Ad... |
580 |
return ERR_PTR(-EINVAL); |
1f6fe7cba [SCSI] target: fi... |
581 |
se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db8 [SCSI] target: Ad... |
582 583 584 585 586 587 588 589 590 591 |
config_group_init_type_name(&se_tpg_np->tpg_np_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit); return &se_tpg_np->tpg_np_group; } static void target_fabric_drop_np( struct config_group *group, struct config_item *item) { |
1f6fe7cba [SCSI] target: fi... |
592 593 594 |
/* * struct se_tpg_np is released via target_fabric_np_base_release() */ |
c66ac9db8 [SCSI] target: Ad... |
595 |
config_item_put(item); |
c66ac9db8 [SCSI] target: Ad... |
596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 |
} static struct configfs_group_operations target_fabric_np_group_ops = { .make_group = &target_fabric_make_np, .drop_item = &target_fabric_drop_np, }; TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); /* End of tfc_tpg_np_cit */ /* Start of tfc_tpg_port_cit */ CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); #define TCM_PORT_ATTR(_name, _mode) \ static struct target_fabric_port_attribute target_fabric_port_##_name = \ __CONFIGFS_EATTR(_name, _mode, \ target_fabric_port_show_attr_##_name, \ target_fabric_port_store_attr_##_name); #define TCM_PORT_ATTOR_RO(_name) \ __CONFIGFS_EATTR_RO(_name, \ target_fabric_port_show_attr_##_name); /* * alua_tg_pt_gp */ static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( struct se_lun *lun, char *page) { |
6708bb27b target: Follow up... |
627 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
628 629 630 631 632 633 634 635 636 637 |
return -ENODEV; return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); } static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( struct se_lun *lun, const char *page, size_t count) { |
6708bb27b target: Follow up... |
638 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
639 640 641 642 643 644 645 646 647 648 649 650 651 652 |
return -ENODEV; return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); } TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); /* * alua_tg_pt_offline */ static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( struct se_lun *lun, char *page) { |
6708bb27b target: Follow up... |
653 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
654 655 656 657 658 659 660 661 662 663 |
return -ENODEV; return core_alua_show_offline_bit(lun, page); } static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( struct se_lun *lun, const char *page, size_t count) { |
6708bb27b target: Follow up... |
664 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
665 666 667 668 669 670 671 672 673 674 675 676 677 678 |
return -ENODEV; return core_alua_store_offline_bit(lun, page, count); } TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); /* * alua_tg_pt_status */ static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( struct se_lun *lun, char *page) { |
6708bb27b target: Follow up... |
679 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
680 681 682 683 684 685 686 687 688 689 |
return -ENODEV; return core_alua_show_secondary_status(lun, page); } static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( struct se_lun *lun, const char *page, size_t count) { |
6708bb27b target: Follow up... |
690 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
691 692 693 694 695 696 697 698 699 700 701 702 703 704 |
return -ENODEV; return core_alua_store_secondary_status(lun, page, count); } TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); /* * alua_tg_pt_write_md */ static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( struct se_lun *lun, char *page) { |
6708bb27b target: Follow up... |
705 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
706 707 708 709 710 711 712 713 714 715 |
return -ENODEV; return core_alua_show_secondary_write_metadata(lun, page); } static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( struct se_lun *lun, const char *page, size_t count) { |
6708bb27b target: Follow up... |
716 |
if (!lun || !lun->lun_sep) |
c66ac9db8 [SCSI] target: Ad... |
717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 |
return -ENODEV; return core_alua_store_secondary_write_metadata(lun, page, count); } TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); static struct configfs_attribute *target_fabric_port_attrs[] = { &target_fabric_port_alua_tg_pt_gp.attr, &target_fabric_port_alua_tg_pt_offline.attr, &target_fabric_port_alua_tg_pt_status.attr, &target_fabric_port_alua_tg_pt_write_md.attr, NULL, }; CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); static int target_fabric_port_link( struct config_item *lun_ci, struct config_item *se_dev_ci) { struct config_item *tpg_ci; struct se_device *dev; struct se_lun *lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); struct se_lun *lun_p; struct se_portal_group *se_tpg; struct se_subsystem_dev *se_dev = container_of( to_config_group(se_dev_ci), struct se_subsystem_dev, se_dev_group); struct target_fabric_configfs *tf; int ret; tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; se_tpg = container_of(to_config_group(tpg_ci), struct se_portal_group, tpg_group); tf = se_tpg->se_tpg_wwn->wwn_tf; if (lun->lun_se_dev != NULL) { |
6708bb27b target: Follow up... |
757 758 |
pr_err("Port Symlink already exists "); |
c66ac9db8 [SCSI] target: Ad... |
759 760 761 762 |
return -EEXIST; } dev = se_dev->se_dev_ptr; |
6708bb27b target: Follow up... |
763 764 |
if (!dev) { pr_err("Unable to locate struct se_device pointer from" |
c66ac9db8 [SCSI] target: Ad... |
765 766 767 768 769 770 771 772 |
" %s ", config_item_name(se_dev_ci)); ret = -ENODEV; goto out; } lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev, lun->unpacked_lun); |
6708bb27b target: Follow up... |
773 774 775 |
if (IS_ERR(lun_p) || !lun_p) { pr_err("core_dev_add_lun() failed "); |
c66ac9db8 [SCSI] target: Ad... |
776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 |
ret = -EINVAL; goto out; } if (tf->tf_ops.fabric_post_link) { /* * Call the optional fabric_post_link() to allow a * fabric module to setup any additional state once * core_dev_add_lun() has been called.. */ tf->tf_ops.fabric_post_link(se_tpg, lun); } return 0; out: return ret; } static int target_fabric_port_unlink( struct config_item *lun_ci, struct config_item *se_dev_ci) { struct se_lun *lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; if (tf->tf_ops.fabric_pre_unlink) { /* * Call the optional fabric_pre_unlink() to allow a * fabric module to release any additional stat before * core_dev_del_lun() is called. */ tf->tf_ops.fabric_pre_unlink(se_tpg, lun); } core_dev_del_lun(se_tpg, lun->unpacked_lun); return 0; } static struct configfs_item_operations target_fabric_port_item_ops = { .show_attribute = target_fabric_port_attr_show, .store_attribute = target_fabric_port_attr_store, .allow_link = target_fabric_port_link, .drop_link = target_fabric_port_unlink, }; TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); /* End of tfc_tpg_port_cit */ |
12d233842 [SCSI] target: ad... |
826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 |
/* Start of tfc_tpg_port_stat_cit */ static struct config_group *target_core_port_stat_mkdir( struct config_group *group, const char *name) { return ERR_PTR(-ENOSYS); } static void target_core_port_stat_rmdir( struct config_group *group, struct config_item *item) { return; } static struct configfs_group_operations target_fabric_port_stat_group_ops = { .make_group = target_core_port_stat_mkdir, .drop_item = target_core_port_stat_rmdir, }; TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); /* End of tfc_tpg_port_stat_cit */ |
c66ac9db8 [SCSI] target: Ad... |
850 851 852 853 854 855 856 857 858 859 |
/* Start of tfc_tpg_lun_cit */ static struct config_group *target_fabric_make_lun( struct config_group *group, const char *name) { struct se_lun *lun; struct se_portal_group *se_tpg = container_of(group, struct se_portal_group, tpg_lun_group); struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
12d233842 [SCSI] target: ad... |
860 |
struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db8 [SCSI] target: Ad... |
861 |
unsigned long unpacked_lun; |
12d233842 [SCSI] target: ad... |
862 |
int errno; |
c66ac9db8 [SCSI] target: Ad... |
863 864 |
if (strstr(name, "lun_") != name) { |
6708bb27b target: Follow up... |
865 |
pr_err("Unable to locate \'_\" in" |
c66ac9db8 [SCSI] target: Ad... |
866 867 868 869 870 871 872 873 |
" \"lun_$LUN_NUMBER\" "); return ERR_PTR(-EINVAL); } if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX) return ERR_PTR(-EINVAL); lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); |
6708bb27b target: Follow up... |
874 |
if (!lun) |
c66ac9db8 [SCSI] target: Ad... |
875 |
return ERR_PTR(-EINVAL); |
12d233842 [SCSI] target: ad... |
876 877 878 879 |
lun_cg = &lun->lun_group; lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, GFP_KERNEL); if (!lun_cg->default_groups) { |
6708bb27b target: Follow up... |
880 881 |
pr_err("Unable to allocate lun_cg->default_groups "); |
12d233842 [SCSI] target: ad... |
882 883 |
return ERR_PTR(-ENOMEM); } |
c66ac9db8 [SCSI] target: Ad... |
884 885 |
config_group_init_type_name(&lun->lun_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); |
12d233842 [SCSI] target: ad... |
886 887 888 889 |
config_group_init_type_name(&lun->port_stat_grps.stat_group, "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; lun_cg->default_groups[1] = NULL; |
e3d6f909e target: Core clea... |
890 |
port_stat_grp = &lun->port_stat_grps.stat_group; |
12d233842 [SCSI] target: ad... |
891 892 893 |
port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, GFP_KERNEL); if (!port_stat_grp->default_groups) { |
6708bb27b target: Follow up... |
894 895 |
pr_err("Unable to allocate port_stat_grp->default_groups "); |
12d233842 [SCSI] target: ad... |
896 897 898 899 |
errno = -ENOMEM; goto out; } target_stat_setup_port_default_groups(lun); |
c66ac9db8 [SCSI] target: Ad... |
900 901 |
return &lun->lun_group; |
12d233842 [SCSI] target: ad... |
902 903 904 905 |
out: if (lun_cg) kfree(lun_cg->default_groups); return ERR_PTR(errno); |
c66ac9db8 [SCSI] target: Ad... |
906 907 908 909 910 911 |
} static void target_fabric_drop_lun( struct config_group *group, struct config_item *item) { |
12d233842 [SCSI] target: ad... |
912 913 914 915 916 |
struct se_lun *lun = container_of(to_config_group(item), struct se_lun, lun_group); struct config_item *df_item; struct config_group *lun_cg, *port_stat_grp; int i; |
e3d6f909e target: Core clea... |
917 |
port_stat_grp = &lun->port_stat_grps.stat_group; |
12d233842 [SCSI] target: ad... |
918 919 920 921 922 923 924 925 926 927 928 929 930 931 |
for (i = 0; port_stat_grp->default_groups[i]; i++) { df_item = &port_stat_grp->default_groups[i]->cg_item; port_stat_grp->default_groups[i] = NULL; config_item_put(df_item); } kfree(port_stat_grp->default_groups); lun_cg = &lun->lun_group; for (i = 0; lun_cg->default_groups[i]; i++) { df_item = &lun_cg->default_groups[i]->cg_item; lun_cg->default_groups[i] = NULL; config_item_put(df_item); } kfree(lun_cg->default_groups); |
c66ac9db8 [SCSI] target: Ad... |
932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 |
config_item_put(item); } static struct configfs_group_operations target_fabric_lun_group_ops = { .make_group = &target_fabric_make_lun, .drop_item = &target_fabric_drop_lun, }; TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); /* End of tfc_tpg_lun_cit */ /* Start of tfc_tpg_attrib_cit */ CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { .show_attribute = target_fabric_tpg_attrib_attr_show, .store_attribute = target_fabric_tpg_attrib_attr_store, }; TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL); /* End of tfc_tpg_attrib_cit */ /* Start of tfc_tpg_param_cit */ CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); static struct configfs_item_operations target_fabric_tpg_param_item_ops = { .show_attribute = target_fabric_tpg_param_attr_show, .store_attribute = target_fabric_tpg_param_attr_store, }; TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL); /* End of tfc_tpg_param_cit */ /* Start of tfc_tpg_base_cit */ /* * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() */ CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); |
1f6fe7cba [SCSI] target: fi... |
975 976 977 978 979 980 981 982 983 |
static void target_fabric_tpg_release(struct config_item *item) { struct se_portal_group *se_tpg = container_of(to_config_group(item), struct se_portal_group, tpg_group); struct se_wwn *wwn = se_tpg->se_tpg_wwn; struct target_fabric_configfs *tf = wwn->wwn_tf; tf->tf_ops.fabric_drop_tpg(se_tpg); } |
c66ac9db8 [SCSI] target: Ad... |
984 |
static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cba [SCSI] target: fi... |
985 |
.release = target_fabric_tpg_release, |
c66ac9db8 [SCSI] target: Ad... |
986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 |
.show_attribute = target_fabric_tpg_attr_show, .store_attribute = target_fabric_tpg_attr_store, }; TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL); /* End of tfc_tpg_base_cit */ /* Start of tfc_tpg_cit */ static struct config_group *target_fabric_make_tpg( struct config_group *group, const char *name) { struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); struct target_fabric_configfs *tf = wwn->wwn_tf; struct se_portal_group *se_tpg; |
6708bb27b target: Follow up... |
1003 1004 1005 |
if (!tf->tf_ops.fabric_make_tpg) { pr_err("tf->tf_ops.fabric_make_tpg is NULL "); |
c66ac9db8 [SCSI] target: Ad... |
1006 1007 1008 1009 |
return ERR_PTR(-ENOSYS); } se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); |
6708bb27b target: Follow up... |
1010 |
if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db8 [SCSI] target: Ad... |
1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 |
return ERR_PTR(-EINVAL); /* * Setup default groups from pre-allocated se_tpg->tpg_default_groups */ se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group; se_tpg->tpg_group.default_groups[5] = NULL; config_group_init_type_name(&se_tpg->tpg_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_base_cit); config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit); config_group_init_type_name(&se_tpg->tpg_np_group, "np", &TF_CIT_TMPL(tf)->tfc_tpg_np_cit); config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit); config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit); config_group_init_type_name(&se_tpg->tpg_param_group, "param", &TF_CIT_TMPL(tf)->tfc_tpg_param_cit); return &se_tpg->tpg_group; } static void target_fabric_drop_tpg( struct config_group *group, struct config_item *item) { |
c66ac9db8 [SCSI] target: Ad... |
1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 |
struct se_portal_group *se_tpg = container_of(to_config_group(item), struct se_portal_group, tpg_group); struct config_group *tpg_cg = &se_tpg->tpg_group; struct config_item *df_item; int i; /* * Release default groups, but do not release tpg_cg->default_groups * memory as it is statically allocated at se_tpg->tpg_default_groups. */ for (i = 0; tpg_cg->default_groups[i]; i++) { df_item = &tpg_cg->default_groups[i]->cg_item; tpg_cg->default_groups[i] = NULL; config_item_put(df_item); } config_item_put(item); |
c66ac9db8 [SCSI] target: Ad... |
1059 |
} |
1f6fe7cba [SCSI] target: fi... |
1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 |
static void target_fabric_release_wwn(struct config_item *item) { struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, wwn_group); struct target_fabric_configfs *tf = wwn->wwn_tf; tf->tf_ops.fabric_drop_wwn(wwn); } static struct configfs_item_operations target_fabric_tpg_item_ops = { .release = target_fabric_release_wwn, }; |
c66ac9db8 [SCSI] target: Ad... |
1072 1073 1074 1075 |
static struct configfs_group_operations target_fabric_tpg_group_ops = { .make_group = target_fabric_make_tpg, .drop_item = target_fabric_drop_tpg, }; |
1f6fe7cba [SCSI] target: fi... |
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TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, NULL); |
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1078 1079 |
/* End of tfc_tpg_cit */ |
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/* Start of tfc_wwn_fabric_stats_cit */ /* * This is used as a placeholder for struct se_wwn->fabric_stat_group * to allow fabrics access to ->fabric_stat_group->default_groups[] */ TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); /* End of tfc_wwn_fabric_stats_cit */ |
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/* Start of tfc_wwn_cit */ static struct config_group *target_fabric_make_wwn( struct config_group *group, const char *name) { struct target_fabric_configfs *tf = container_of(group, struct target_fabric_configfs, tf_group); struct se_wwn *wwn; |
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if (!tf->tf_ops.fabric_make_wwn) { pr_err("tf->tf_ops.fabric_make_wwn is NULL "); |
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return ERR_PTR(-ENOSYS); } wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); |
6708bb27b target: Follow up... |
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if (!wwn || IS_ERR(wwn)) |
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return ERR_PTR(-EINVAL); wwn->wwn_tf = tf; |
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/* * Setup default groups from pre-allocated wwn->wwn_default_groups */ wwn->wwn_group.default_groups = wwn->wwn_default_groups; wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; wwn->wwn_group.default_groups[1] = NULL; |
c66ac9db8 [SCSI] target: Ad... |
1114 1115 |
config_group_init_type_name(&wwn->wwn_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_cit); |
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1116 1117 |
config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); |
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return &wwn->wwn_group; } static void target_fabric_drop_wwn( struct config_group *group, struct config_item *item) { |
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struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, wwn_group); struct config_item *df_item; struct config_group *cg = &wwn->wwn_group; int i; for (i = 0; cg->default_groups[i]; i++) { df_item = &cg->default_groups[i]->cg_item; cg->default_groups[i] = NULL; config_item_put(df_item); } |
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config_item_put(item); |
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1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 |
} static struct configfs_group_operations target_fabric_wwn_group_ops = { .make_group = target_fabric_make_wwn, .drop_item = target_fabric_drop_wwn, }; /* * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() */ CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); static struct configfs_item_operations target_fabric_wwn_item_ops = { .show_attribute = target_fabric_wwn_attr_show, .store_attribute = target_fabric_wwn_attr_store, }; TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL); /* End of tfc_wwn_cit */ /* Start of tfc_discovery_cit */ CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, tf_disc_group); static struct configfs_item_operations target_fabric_discovery_item_ops = { .show_attribute = target_fabric_discovery_attr_show, .store_attribute = target_fabric_discovery_attr_store, }; TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL); /* End of tfc_discovery_cit */ int target_fabric_setup_cits(struct target_fabric_configfs *tf) { target_fabric_setup_discovery_cit(tf); target_fabric_setup_wwn_cit(tf); |
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1176 |
target_fabric_setup_wwn_fabric_stats_cit(tf); |
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target_fabric_setup_tpg_cit(tf); target_fabric_setup_tpg_base_cit(tf); target_fabric_setup_tpg_port_cit(tf); |
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1180 |
target_fabric_setup_tpg_port_stat_cit(tf); |
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1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 |
target_fabric_setup_tpg_lun_cit(tf); target_fabric_setup_tpg_np_cit(tf); target_fabric_setup_tpg_np_base_cit(tf); target_fabric_setup_tpg_attrib_cit(tf); target_fabric_setup_tpg_param_cit(tf); target_fabric_setup_tpg_nacl_cit(tf); target_fabric_setup_tpg_nacl_base_cit(tf); target_fabric_setup_tpg_nacl_attrib_cit(tf); target_fabric_setup_tpg_nacl_auth_cit(tf); target_fabric_setup_tpg_nacl_param_cit(tf); |
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1191 |
target_fabric_setup_tpg_nacl_stat_cit(tf); |
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1192 |
target_fabric_setup_tpg_mappedlun_cit(tf); |
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target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
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return 0; } |