![Jörn Engel](/assets/img/avatar_default.png)
A reader should spend an extra moment whenever noticing a cast, because either something special is going on that deserves extra attention or, as is all too often the case, the code is wrong. These casts, afaics, have all been useless. They cast a foo* to a foo*, cast a void* to the assigned type, cast a foo* to void*, before assigning it to a void* variable, etc. In a few cases I also removed an additional &...[0], which is equally useless. Lastly I added three FIXMEs where, to the best of my judgement, the code appears to have a bug. It would be good if someone could check these. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
758 lines
19 KiB
C
758 lines
19 KiB
C
/*******************************************************************************
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* This file contains iSCSI Target Portal Group related functions.
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*
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* \u00a9 Copyright 2007-2011 RisingTide Systems LLC.
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*
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* Licensed to the Linux Foundation under the General Public License (GPL) version 2.
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*
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* Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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******************************************************************************/
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#include <target/target_core_base.h>
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#include <target/target_core_fabric.h>
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#include <target/target_core_configfs.h>
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#include "iscsi_target_core.h"
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#include "iscsi_target_erl0.h"
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#include "iscsi_target_login.h"
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#include "iscsi_target_nodeattrib.h"
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#include "iscsi_target_tpg.h"
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#include "iscsi_target_util.h"
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#include "iscsi_target.h"
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#include "iscsi_target_parameters.h"
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struct iscsi_portal_group *iscsit_alloc_portal_group(struct iscsi_tiqn *tiqn, u16 tpgt)
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{
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struct iscsi_portal_group *tpg;
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tpg = kzalloc(sizeof(struct iscsi_portal_group), GFP_KERNEL);
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if (!tpg) {
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pr_err("Unable to allocate struct iscsi_portal_group\n");
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return NULL;
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}
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tpg->tpgt = tpgt;
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tpg->tpg_state = TPG_STATE_FREE;
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tpg->tpg_tiqn = tiqn;
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INIT_LIST_HEAD(&tpg->tpg_gnp_list);
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INIT_LIST_HEAD(&tpg->tpg_list);
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mutex_init(&tpg->tpg_access_lock);
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mutex_init(&tpg->np_login_lock);
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spin_lock_init(&tpg->tpg_state_lock);
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spin_lock_init(&tpg->tpg_np_lock);
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return tpg;
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}
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static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *);
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int iscsit_load_discovery_tpg(void)
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{
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struct iscsi_param *param;
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struct iscsi_portal_group *tpg;
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int ret;
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tpg = iscsit_alloc_portal_group(NULL, 1);
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if (!tpg) {
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pr_err("Unable to allocate struct iscsi_portal_group\n");
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return -1;
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}
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ret = core_tpg_register(
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&lio_target_fabric_configfs->tf_ops,
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NULL, &tpg->tpg_se_tpg, tpg,
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TRANSPORT_TPG_TYPE_DISCOVERY);
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if (ret < 0) {
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kfree(tpg);
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return -1;
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}
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tpg->sid = 1; /* First Assigned LIO Session ID */
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iscsit_set_default_tpg_attribs(tpg);
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if (iscsi_create_default_params(&tpg->param_list) < 0)
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goto out;
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/*
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* By default we disable authentication for discovery sessions,
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* this can be changed with:
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*
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* /sys/kernel/config/target/iscsi/discovery_auth/enforce_discovery_auth
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*/
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param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
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if (!param)
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goto out;
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if (iscsi_update_param_value(param, "CHAP,None") < 0)
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goto out;
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tpg->tpg_attrib.authentication = 0;
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_ACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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iscsit_global->discovery_tpg = tpg;
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pr_debug("CORE[0] - Allocated Discovery TPG\n");
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return 0;
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out:
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if (tpg->sid == 1)
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core_tpg_deregister(&tpg->tpg_se_tpg);
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kfree(tpg);
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return -1;
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}
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void iscsit_release_discovery_tpg(void)
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{
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struct iscsi_portal_group *tpg = iscsit_global->discovery_tpg;
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if (!tpg)
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return;
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core_tpg_deregister(&tpg->tpg_se_tpg);
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kfree(tpg);
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iscsit_global->discovery_tpg = NULL;
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}
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struct iscsi_portal_group *iscsit_get_tpg_from_np(
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struct iscsi_tiqn *tiqn,
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struct iscsi_np *np)
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{
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struct iscsi_portal_group *tpg = NULL;
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struct iscsi_tpg_np *tpg_np;
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spin_lock(&tiqn->tiqn_tpg_lock);
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list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
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spin_lock(&tpg->tpg_state_lock);
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if (tpg->tpg_state == TPG_STATE_FREE) {
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spin_unlock(&tpg->tpg_state_lock);
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continue;
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}
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tpg->tpg_np_lock);
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list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
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if (tpg_np->tpg_np == np) {
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spin_unlock(&tpg->tpg_np_lock);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return tpg;
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}
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}
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spin_unlock(&tpg->tpg_np_lock);
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}
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return NULL;
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}
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int iscsit_get_tpg(
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struct iscsi_portal_group *tpg)
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{
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int ret;
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ret = mutex_lock_interruptible(&tpg->tpg_access_lock);
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return ((ret != 0) || signal_pending(current)) ? -1 : 0;
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}
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void iscsit_put_tpg(struct iscsi_portal_group *tpg)
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{
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mutex_unlock(&tpg->tpg_access_lock);
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}
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static void iscsit_clear_tpg_np_login_thread(
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struct iscsi_tpg_np *tpg_np,
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struct iscsi_portal_group *tpg)
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{
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if (!tpg_np->tpg_np) {
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pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
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return;
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}
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iscsit_reset_np_thread(tpg_np->tpg_np, tpg_np, tpg);
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}
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void iscsit_clear_tpg_np_login_threads(
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struct iscsi_portal_group *tpg)
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{
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struct iscsi_tpg_np *tpg_np;
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spin_lock(&tpg->tpg_np_lock);
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list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
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if (!tpg_np->tpg_np) {
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pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
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continue;
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}
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spin_unlock(&tpg->tpg_np_lock);
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iscsit_clear_tpg_np_login_thread(tpg_np, tpg);
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spin_lock(&tpg->tpg_np_lock);
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}
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spin_unlock(&tpg->tpg_np_lock);
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}
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void iscsit_tpg_dump_params(struct iscsi_portal_group *tpg)
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{
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iscsi_print_params(tpg->param_list);
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}
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static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
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{
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struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
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a->authentication = TA_AUTHENTICATION;
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a->login_timeout = TA_LOGIN_TIMEOUT;
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a->netif_timeout = TA_NETIF_TIMEOUT;
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a->default_cmdsn_depth = TA_DEFAULT_CMDSN_DEPTH;
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a->generate_node_acls = TA_GENERATE_NODE_ACLS;
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a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS;
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a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
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a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
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}
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int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
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{
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if (tpg->tpg_state != TPG_STATE_FREE) {
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pr_err("Unable to add iSCSI Target Portal Group: %d"
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" while not in TPG_STATE_FREE state.\n", tpg->tpgt);
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return -EEXIST;
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}
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iscsit_set_default_tpg_attribs(tpg);
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if (iscsi_create_default_params(&tpg->param_list) < 0)
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goto err_out;
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ISCSI_TPG_ATTRIB(tpg)->tpg = tpg;
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_INACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tiqn->tiqn_tpg_lock);
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list_add_tail(&tpg->tpg_list, &tiqn->tiqn_tpg_list);
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tiqn->tiqn_ntpgs++;
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pr_debug("CORE[%s]_TPG[%hu] - Added iSCSI Target Portal Group\n",
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tiqn->tiqn, tpg->tpgt);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return 0;
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err_out:
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if (tpg->param_list) {
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iscsi_release_param_list(tpg->param_list);
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tpg->param_list = NULL;
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}
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kfree(tpg);
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return -ENOMEM;
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}
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int iscsit_tpg_del_portal_group(
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struct iscsi_tiqn *tiqn,
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struct iscsi_portal_group *tpg,
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int force)
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{
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u8 old_state = tpg->tpg_state;
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_INACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
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pr_err("Unable to delete iSCSI Target Portal Group:"
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" %hu while active sessions exist, and force=0\n",
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tpg->tpgt);
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tpg->tpg_state = old_state;
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return -EPERM;
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}
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core_tpg_clear_object_luns(&tpg->tpg_se_tpg);
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if (tpg->param_list) {
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iscsi_release_param_list(tpg->param_list);
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tpg->param_list = NULL;
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}
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core_tpg_deregister(&tpg->tpg_se_tpg);
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_FREE;
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tiqn->tiqn_tpg_lock);
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tiqn->tiqn_ntpgs--;
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list_del(&tpg->tpg_list);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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pr_debug("CORE[%s]_TPG[%hu] - Deleted iSCSI Target Portal Group\n",
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tiqn->tiqn, tpg->tpgt);
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kfree(tpg);
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return 0;
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}
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int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
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{
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struct iscsi_param *param;
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struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
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spin_lock(&tpg->tpg_state_lock);
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if (tpg->tpg_state == TPG_STATE_ACTIVE) {
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pr_err("iSCSI target portal group: %hu is already"
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" active, ignoring request.\n", tpg->tpgt);
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spin_unlock(&tpg->tpg_state_lock);
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return -EINVAL;
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}
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/*
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* Make sure that AuthMethod does not contain None as an option
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* unless explictly disabled. Set the default to CHAP if authentication
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* is enforced (as per default), and remove the NONE option.
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*/
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param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
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if (!param) {
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spin_unlock(&tpg->tpg_state_lock);
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return -ENOMEM;
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}
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if (ISCSI_TPG_ATTRIB(tpg)->authentication) {
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if (!strcmp(param->value, NONE))
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if (iscsi_update_param_value(param, CHAP) < 0) {
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spin_unlock(&tpg->tpg_state_lock);
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return -ENOMEM;
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}
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if (iscsit_ta_authentication(tpg, 1) < 0) {
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spin_unlock(&tpg->tpg_state_lock);
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return -ENOMEM;
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}
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}
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tpg->tpg_state = TPG_STATE_ACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tiqn->tiqn_tpg_lock);
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tiqn->tiqn_active_tpgs++;
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pr_debug("iSCSI_TPG[%hu] - Enabled iSCSI Target Portal Group\n",
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tpg->tpgt);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return 0;
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}
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int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *tpg, int force)
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{
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struct iscsi_tiqn *tiqn;
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u8 old_state = tpg->tpg_state;
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spin_lock(&tpg->tpg_state_lock);
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if (tpg->tpg_state == TPG_STATE_INACTIVE) {
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pr_err("iSCSI Target Portal Group: %hu is already"
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" inactive, ignoring request.\n", tpg->tpgt);
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spin_unlock(&tpg->tpg_state_lock);
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return -EINVAL;
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}
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tpg->tpg_state = TPG_STATE_INACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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iscsit_clear_tpg_np_login_threads(tpg);
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if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = old_state;
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spin_unlock(&tpg->tpg_state_lock);
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pr_err("Unable to disable iSCSI Target Portal Group:"
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" %hu while active sessions exist, and force=0\n",
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tpg->tpgt);
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return -EPERM;
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}
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tiqn = tpg->tpg_tiqn;
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if (!tiqn || (tpg == iscsit_global->discovery_tpg))
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return 0;
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spin_lock(&tiqn->tiqn_tpg_lock);
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tiqn->tiqn_active_tpgs--;
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pr_debug("iSCSI_TPG[%hu] - Disabled iSCSI Target Portal Group\n",
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tpg->tpgt);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return 0;
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}
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struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(
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struct iscsi_session *sess)
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{
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struct se_session *se_sess = sess->se_sess;
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struct se_node_acl *se_nacl = se_sess->se_node_acl;
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struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl,
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se_node_acl);
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return &acl->node_attrib;
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}
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struct iscsi_tpg_np *iscsit_tpg_locate_child_np(
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struct iscsi_tpg_np *tpg_np,
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int network_transport)
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{
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struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
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spin_lock(&tpg_np->tpg_np_parent_lock);
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list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
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&tpg_np->tpg_np_parent_list, tpg_np_child_list) {
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if (tpg_np_child->tpg_np->np_network_transport ==
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network_transport) {
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spin_unlock(&tpg_np->tpg_np_parent_lock);
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return tpg_np_child;
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}
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}
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spin_unlock(&tpg_np->tpg_np_parent_lock);
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return NULL;
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}
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struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
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struct iscsi_portal_group *tpg,
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struct __kernel_sockaddr_storage *sockaddr,
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char *ip_str,
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struct iscsi_tpg_np *tpg_np_parent,
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int network_transport)
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{
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struct iscsi_np *np;
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struct iscsi_tpg_np *tpg_np;
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tpg_np = kzalloc(sizeof(struct iscsi_tpg_np), GFP_KERNEL);
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if (!tpg_np) {
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pr_err("Unable to allocate memory for"
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" struct iscsi_tpg_np.\n");
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return ERR_PTR(-ENOMEM);
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}
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np = iscsit_add_np(sockaddr, ip_str, network_transport);
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if (IS_ERR(np)) {
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kfree(tpg_np);
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return ERR_CAST(np);
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}
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INIT_LIST_HEAD(&tpg_np->tpg_np_list);
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INIT_LIST_HEAD(&tpg_np->tpg_np_child_list);
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INIT_LIST_HEAD(&tpg_np->tpg_np_parent_list);
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spin_lock_init(&tpg_np->tpg_np_parent_lock);
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tpg_np->tpg_np = np;
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tpg_np->tpg = tpg;
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spin_lock(&tpg->tpg_np_lock);
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list_add_tail(&tpg_np->tpg_np_list, &tpg->tpg_gnp_list);
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tpg->num_tpg_nps++;
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if (tpg->tpg_tiqn)
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tpg->tpg_tiqn->tiqn_num_tpg_nps++;
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spin_unlock(&tpg->tpg_np_lock);
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if (tpg_np_parent) {
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tpg_np->tpg_np_parent = tpg_np_parent;
|
|
spin_lock(&tpg_np_parent->tpg_np_parent_lock);
|
|
list_add_tail(&tpg_np->tpg_np_child_list,
|
|
&tpg_np_parent->tpg_np_parent_list);
|
|
spin_unlock(&tpg_np_parent->tpg_np_parent_lock);
|
|
}
|
|
|
|
pr_debug("CORE[%s] - Added Network Portal: %s:%hu,%hu on %s\n",
|
|
tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt,
|
|
(np->np_network_transport == ISCSI_TCP) ? "TCP" : "SCTP");
|
|
|
|
return tpg_np;
|
|
}
|
|
|
|
static int iscsit_tpg_release_np(
|
|
struct iscsi_tpg_np *tpg_np,
|
|
struct iscsi_portal_group *tpg,
|
|
struct iscsi_np *np)
|
|
{
|
|
iscsit_clear_tpg_np_login_thread(tpg_np, tpg);
|
|
|
|
pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n",
|
|
tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt,
|
|
(np->np_network_transport == ISCSI_TCP) ? "TCP" : "SCTP");
|
|
|
|
tpg_np->tpg_np = NULL;
|
|
tpg_np->tpg = NULL;
|
|
kfree(tpg_np);
|
|
/*
|
|
* iscsit_del_np() will shutdown struct iscsi_np when last TPG reference is released.
|
|
*/
|
|
return iscsit_del_np(np);
|
|
}
|
|
|
|
int iscsit_tpg_del_network_portal(
|
|
struct iscsi_portal_group *tpg,
|
|
struct iscsi_tpg_np *tpg_np)
|
|
{
|
|
struct iscsi_np *np;
|
|
struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
|
|
int ret = 0;
|
|
|
|
np = tpg_np->tpg_np;
|
|
if (!np) {
|
|
pr_err("Unable to locate struct iscsi_np from"
|
|
" struct iscsi_tpg_np\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!tpg_np->tpg_np_parent) {
|
|
/*
|
|
* We are the parent tpg network portal. Release all of the
|
|
* child tpg_np's (eg: the non ISCSI_TCP ones) on our parent
|
|
* list first.
|
|
*/
|
|
list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
|
|
&tpg_np->tpg_np_parent_list,
|
|
tpg_np_child_list) {
|
|
ret = iscsit_tpg_del_network_portal(tpg, tpg_np_child);
|
|
if (ret < 0)
|
|
pr_err("iscsit_tpg_del_network_portal()"
|
|
" failed: %d\n", ret);
|
|
}
|
|
} else {
|
|
/*
|
|
* We are not the parent ISCSI_TCP tpg network portal. Release
|
|
* our own network portals from the child list.
|
|
*/
|
|
spin_lock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
|
|
list_del(&tpg_np->tpg_np_child_list);
|
|
spin_unlock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
|
|
}
|
|
|
|
spin_lock(&tpg->tpg_np_lock);
|
|
list_del(&tpg_np->tpg_np_list);
|
|
tpg->num_tpg_nps--;
|
|
if (tpg->tpg_tiqn)
|
|
tpg->tpg_tiqn->tiqn_num_tpg_nps--;
|
|
spin_unlock(&tpg->tpg_np_lock);
|
|
|
|
return iscsit_tpg_release_np(tpg_np, tpg, np);
|
|
}
|
|
|
|
int iscsit_tpg_set_initiator_node_queue_depth(
|
|
struct iscsi_portal_group *tpg,
|
|
unsigned char *initiatorname,
|
|
u32 queue_depth,
|
|
int force)
|
|
{
|
|
return core_tpg_set_initiator_node_queue_depth(&tpg->tpg_se_tpg,
|
|
initiatorname, queue_depth, force);
|
|
}
|
|
|
|
int iscsit_ta_authentication(struct iscsi_portal_group *tpg, u32 authentication)
|
|
{
|
|
unsigned char buf1[256], buf2[256], *none = NULL;
|
|
int len;
|
|
struct iscsi_param *param;
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if ((authentication != 1) && (authentication != 0)) {
|
|
pr_err("Illegal value for authentication parameter:"
|
|
" %u, ignoring request.\n", authentication);
|
|
return -1;
|
|
}
|
|
|
|
memset(buf1, 0, sizeof(buf1));
|
|
memset(buf2, 0, sizeof(buf2));
|
|
|
|
param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
|
|
if (!param)
|
|
return -EINVAL;
|
|
|
|
if (authentication) {
|
|
snprintf(buf1, sizeof(buf1), "%s", param->value);
|
|
none = strstr(buf1, NONE);
|
|
if (!none)
|
|
goto out;
|
|
if (!strncmp(none + 4, ",", 1)) {
|
|
if (!strcmp(buf1, none))
|
|
sprintf(buf2, "%s", none+5);
|
|
else {
|
|
none--;
|
|
*none = '\0';
|
|
len = sprintf(buf2, "%s", buf1);
|
|
none += 5;
|
|
sprintf(buf2 + len, "%s", none);
|
|
}
|
|
} else {
|
|
none--;
|
|
*none = '\0';
|
|
sprintf(buf2, "%s", buf1);
|
|
}
|
|
if (iscsi_update_param_value(param, buf2) < 0)
|
|
return -EINVAL;
|
|
} else {
|
|
snprintf(buf1, sizeof(buf1), "%s", param->value);
|
|
none = strstr(buf1, NONE);
|
|
if ((none))
|
|
goto out;
|
|
strncat(buf1, ",", strlen(","));
|
|
strncat(buf1, NONE, strlen(NONE));
|
|
if (iscsi_update_param_value(param, buf1) < 0)
|
|
return -EINVAL;
|
|
}
|
|
|
|
out:
|
|
a->authentication = authentication;
|
|
pr_debug("%s iSCSI Authentication Methods for TPG: %hu.\n",
|
|
a->authentication ? "Enforcing" : "Disabling", tpg->tpgt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_login_timeout(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 login_timeout)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if (login_timeout > TA_LOGIN_TIMEOUT_MAX) {
|
|
pr_err("Requested Login Timeout %u larger than maximum"
|
|
" %u\n", login_timeout, TA_LOGIN_TIMEOUT_MAX);
|
|
return -EINVAL;
|
|
} else if (login_timeout < TA_LOGIN_TIMEOUT_MIN) {
|
|
pr_err("Requested Logout Timeout %u smaller than"
|
|
" minimum %u\n", login_timeout, TA_LOGIN_TIMEOUT_MIN);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->login_timeout = login_timeout;
|
|
pr_debug("Set Logout Timeout to %u for Target Portal Group"
|
|
" %hu\n", a->login_timeout, tpg->tpgt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_netif_timeout(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 netif_timeout)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if (netif_timeout > TA_NETIF_TIMEOUT_MAX) {
|
|
pr_err("Requested Network Interface Timeout %u larger"
|
|
" than maximum %u\n", netif_timeout,
|
|
TA_NETIF_TIMEOUT_MAX);
|
|
return -EINVAL;
|
|
} else if (netif_timeout < TA_NETIF_TIMEOUT_MIN) {
|
|
pr_err("Requested Network Interface Timeout %u smaller"
|
|
" than minimum %u\n", netif_timeout,
|
|
TA_NETIF_TIMEOUT_MIN);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->netif_timeout = netif_timeout;
|
|
pr_debug("Set Network Interface Timeout to %u for"
|
|
" Target Portal Group %hu\n", a->netif_timeout, tpg->tpgt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_generate_node_acls(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 flag)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if ((flag != 0) && (flag != 1)) {
|
|
pr_err("Illegal value %d\n", flag);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->generate_node_acls = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n",
|
|
tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_default_cmdsn_depth(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 tcq_depth)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if (tcq_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
|
|
pr_err("Requested Default Queue Depth: %u larger"
|
|
" than maximum %u\n", tcq_depth,
|
|
TA_DEFAULT_CMDSN_DEPTH_MAX);
|
|
return -EINVAL;
|
|
} else if (tcq_depth < TA_DEFAULT_CMDSN_DEPTH_MIN) {
|
|
pr_err("Requested Default Queue Depth: %u smaller"
|
|
" than minimum %u\n", tcq_depth,
|
|
TA_DEFAULT_CMDSN_DEPTH_MIN);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->default_cmdsn_depth = tcq_depth;
|
|
pr_debug("iSCSI_TPG[%hu] - Set Default CmdSN TCQ Depth to %u\n",
|
|
tpg->tpgt, a->default_cmdsn_depth);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_cache_dynamic_acls(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 flag)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if ((flag != 0) && (flag != 1)) {
|
|
pr_err("Illegal value %d\n", flag);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->cache_dynamic_acls = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group"
|
|
" ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ?
|
|
"Enabled" : "Disabled");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_demo_mode_write_protect(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 flag)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if ((flag != 0) && (flag != 1)) {
|
|
pr_err("Illegal value %d\n", flag);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->demo_mode_write_protect = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - Demo Mode Write Protect bit: %s\n",
|
|
tpg->tpgt, (a->demo_mode_write_protect) ? "ON" : "OFF");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_prod_mode_write_protect(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 flag)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if ((flag != 0) && (flag != 1)) {
|
|
pr_err("Illegal value %d\n", flag);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->prod_mode_write_protect = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - Production Mode Write Protect bit:"
|
|
" %s\n", tpg->tpgt, (a->prod_mode_write_protect) ?
|
|
"ON" : "OFF");
|
|
|
|
return 0;
|
|
}
|