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linux/drivers/target/iscsi/iscsi_target_nodeattrib.c
Thomas Gleixner c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
Based on 3 normalized pattern(s):

  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

  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 [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] 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

  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 [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] 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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00

254 lines
7.1 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*******************************************************************************
* This file contains the main functions related to Initiator Node Attributes.
*
* (c) Copyright 2007-2013 Datera, Inc.
*
* Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
*
******************************************************************************/
#include <target/target_core_base.h>
#include <target/iscsi/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_portal_group *tpg)
{
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 = tpg->tpg_attrib.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;
}