263 lines
7.6 KiB
C
263 lines
7.6 KiB
C
/*******************************************************************************
|
|
* This file contains the main functions related to Initiator Node Attributes.
|
|
*
|
|
* \u00a9 Copyright 2007-2011 RisingTide Systems LLC.
|
|
*
|
|
* Licensed to the Linux Foundation under the General Public License (GPL) version 2.
|
|
*
|
|
* Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
|
|
*
|
|
* 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 <target/target_core_base.h>
|
|
|
|
#include "iscsi_target_core.h"
|
|
#include "iscsi_target_device.h"
|
|
#include "iscsi_target_tpg.h"
|
|
#include "iscsi_target_util.h"
|
|
#include "iscsi_target_nodeattrib.h"
|
|
|
|
static inline char *iscsit_na_get_initiatorname(
|
|
struct iscsi_node_acl *nacl)
|
|
{
|
|
struct se_node_acl *se_nacl = &nacl->se_node_acl;
|
|
|
|
return &se_nacl->initiatorname[0];
|
|
}
|
|
|
|
void iscsit_set_default_node_attribues(
|
|
struct iscsi_node_acl *acl)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
a->dataout_timeout = NA_DATAOUT_TIMEOUT;
|
|
a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES;
|
|
a->nopin_timeout = NA_NOPIN_TIMEOUT;
|
|
a->nopin_response_timeout = NA_NOPIN_RESPONSE_TIMEOUT;
|
|
a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS;
|
|
a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS;
|
|
a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS;
|
|
a->default_erl = NA_DEFAULT_ERL;
|
|
}
|
|
|
|
int iscsit_na_dataout_timeout(
|
|
struct iscsi_node_acl *acl,
|
|
u32 dataout_timeout)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
if (dataout_timeout > NA_DATAOUT_TIMEOUT_MAX) {
|
|
pr_err("Requested DataOut Timeout %u larger than"
|
|
" maximum %u\n", dataout_timeout,
|
|
NA_DATAOUT_TIMEOUT_MAX);
|
|
return -EINVAL;
|
|
} else if (dataout_timeout < NA_DATAOUT_TIMEOUT_MIX) {
|
|
pr_err("Requested DataOut Timeout %u smaller than"
|
|
" minimum %u\n", dataout_timeout,
|
|
NA_DATAOUT_TIMEOUT_MIX);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->dataout_timeout = dataout_timeout;
|
|
pr_debug("Set DataOut Timeout to %u for Initiator Node"
|
|
" %s\n", a->dataout_timeout, iscsit_na_get_initiatorname(acl));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_na_dataout_timeout_retries(
|
|
struct iscsi_node_acl *acl,
|
|
u32 dataout_timeout_retries)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
if (dataout_timeout_retries > NA_DATAOUT_TIMEOUT_RETRIES_MAX) {
|
|
pr_err("Requested DataOut Timeout Retries %u larger"
|
|
" than maximum %u", dataout_timeout_retries,
|
|
NA_DATAOUT_TIMEOUT_RETRIES_MAX);
|
|
return -EINVAL;
|
|
} else if (dataout_timeout_retries < NA_DATAOUT_TIMEOUT_RETRIES_MIN) {
|
|
pr_err("Requested DataOut Timeout Retries %u smaller"
|
|
" than minimum %u", dataout_timeout_retries,
|
|
NA_DATAOUT_TIMEOUT_RETRIES_MIN);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->dataout_timeout_retries = dataout_timeout_retries;
|
|
pr_debug("Set DataOut Timeout Retries to %u for"
|
|
" Initiator Node %s\n", a->dataout_timeout_retries,
|
|
iscsit_na_get_initiatorname(acl));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_na_nopin_timeout(
|
|
struct iscsi_node_acl *acl,
|
|
u32 nopin_timeout)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
struct iscsi_session *sess;
|
|
struct iscsi_conn *conn;
|
|
struct se_node_acl *se_nacl = &a->nacl->se_node_acl;
|
|
struct se_session *se_sess;
|
|
u32 orig_nopin_timeout = a->nopin_timeout;
|
|
|
|
if (nopin_timeout > NA_NOPIN_TIMEOUT_MAX) {
|
|
pr_err("Requested NopIn Timeout %u larger than maximum"
|
|
" %u\n", nopin_timeout, NA_NOPIN_TIMEOUT_MAX);
|
|
return -EINVAL;
|
|
} else if ((nopin_timeout < NA_NOPIN_TIMEOUT_MIN) &&
|
|
(nopin_timeout != 0)) {
|
|
pr_err("Requested NopIn Timeout %u smaller than"
|
|
" minimum %u and not 0\n", nopin_timeout,
|
|
NA_NOPIN_TIMEOUT_MIN);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->nopin_timeout = nopin_timeout;
|
|
pr_debug("Set NopIn Timeout to %u for Initiator"
|
|
" Node %s\n", a->nopin_timeout,
|
|
iscsit_na_get_initiatorname(acl));
|
|
/*
|
|
* Reenable disabled nopin_timeout timer for all iSCSI connections.
|
|
*/
|
|
if (!orig_nopin_timeout) {
|
|
spin_lock_bh(&se_nacl->nacl_sess_lock);
|
|
se_sess = se_nacl->nacl_sess;
|
|
if (se_sess) {
|
|
sess = se_sess->fabric_sess_ptr;
|
|
|
|
spin_lock(&sess->conn_lock);
|
|
list_for_each_entry(conn, &sess->sess_conn_list,
|
|
conn_list) {
|
|
if (conn->conn_state !=
|
|
TARG_CONN_STATE_LOGGED_IN)
|
|
continue;
|
|
|
|
spin_lock(&conn->nopin_timer_lock);
|
|
__iscsit_start_nopin_timer(conn);
|
|
spin_unlock(&conn->nopin_timer_lock);
|
|
}
|
|
spin_unlock(&sess->conn_lock);
|
|
}
|
|
spin_unlock_bh(&se_nacl->nacl_sess_lock);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_na_nopin_response_timeout(
|
|
struct iscsi_node_acl *acl,
|
|
u32 nopin_response_timeout)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
if (nopin_response_timeout > NA_NOPIN_RESPONSE_TIMEOUT_MAX) {
|
|
pr_err("Requested NopIn Response Timeout %u larger"
|
|
" than maximum %u\n", nopin_response_timeout,
|
|
NA_NOPIN_RESPONSE_TIMEOUT_MAX);
|
|
return -EINVAL;
|
|
} else if (nopin_response_timeout < NA_NOPIN_RESPONSE_TIMEOUT_MIN) {
|
|
pr_err("Requested NopIn Response Timeout %u smaller"
|
|
" than minimum %u\n", nopin_response_timeout,
|
|
NA_NOPIN_RESPONSE_TIMEOUT_MIN);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->nopin_response_timeout = nopin_response_timeout;
|
|
pr_debug("Set NopIn Response Timeout to %u for"
|
|
" Initiator Node %s\n", a->nopin_timeout,
|
|
iscsit_na_get_initiatorname(acl));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_na_random_datain_pdu_offsets(
|
|
struct iscsi_node_acl *acl,
|
|
u32 random_datain_pdu_offsets)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
if (random_datain_pdu_offsets != 0 && random_datain_pdu_offsets != 1) {
|
|
pr_err("Requested Random DataIN PDU Offsets: %u not"
|
|
" 0 or 1\n", random_datain_pdu_offsets);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->random_datain_pdu_offsets = random_datain_pdu_offsets;
|
|
pr_debug("Set Random DataIN PDU Offsets to %u for"
|
|
" Initiator Node %s\n", a->random_datain_pdu_offsets,
|
|
iscsit_na_get_initiatorname(acl));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_na_random_datain_seq_offsets(
|
|
struct iscsi_node_acl *acl,
|
|
u32 random_datain_seq_offsets)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
if (random_datain_seq_offsets != 0 && random_datain_seq_offsets != 1) {
|
|
pr_err("Requested Random DataIN Sequence Offsets: %u"
|
|
" not 0 or 1\n", random_datain_seq_offsets);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->random_datain_seq_offsets = random_datain_seq_offsets;
|
|
pr_debug("Set Random DataIN Sequence Offsets to %u for"
|
|
" Initiator Node %s\n", a->random_datain_seq_offsets,
|
|
iscsit_na_get_initiatorname(acl));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_na_random_r2t_offsets(
|
|
struct iscsi_node_acl *acl,
|
|
u32 random_r2t_offsets)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
if (random_r2t_offsets != 0 && random_r2t_offsets != 1) {
|
|
pr_err("Requested Random R2T Offsets: %u not"
|
|
" 0 or 1\n", random_r2t_offsets);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->random_r2t_offsets = random_r2t_offsets;
|
|
pr_debug("Set Random R2T Offsets to %u for"
|
|
" Initiator Node %s\n", a->random_r2t_offsets,
|
|
iscsit_na_get_initiatorname(acl));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_na_default_erl(
|
|
struct iscsi_node_acl *acl,
|
|
u32 default_erl)
|
|
{
|
|
struct iscsi_node_attrib *a = &acl->node_attrib;
|
|
|
|
if (default_erl != 0 && default_erl != 1 && default_erl != 2) {
|
|
pr_err("Requested default ERL: %u not 0, 1, or 2\n",
|
|
default_erl);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->default_erl = default_erl;
|
|
pr_debug("Set use ERL0 flag to %u for Initiator"
|
|
" Node %s\n", a->default_erl,
|
|
iscsit_na_get_initiatorname(acl));
|
|
|
|
return 0;
|
|
}
|