1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*******************************************************************************
3 * This file contains the main functions related to Initiator Node Attributes.
5 * (c) Copyright 2007-2013 Datera, Inc.
7 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
9 ******************************************************************************/
11 #include <target/target_core_base.h>
13 #include <target/iscsi/iscsi_target_core.h>
14 #include "iscsi_target_device.h"
15 #include "iscsi_target_tpg.h"
16 #include "iscsi_target_util.h"
17 #include "iscsi_target_nodeattrib.h"
19 static inline char *iscsit_na_get_initiatorname(
20 struct iscsi_node_acl *nacl)
22 struct se_node_acl *se_nacl = &nacl->se_node_acl;
24 return &se_nacl->initiatorname[0];
27 void iscsit_set_default_node_attribues(
28 struct iscsi_node_acl *acl,
29 struct iscsi_portal_group *tpg)
31 struct iscsi_node_attrib *a = &acl->node_attrib;
33 a->authentication = NA_AUTHENTICATION_INHERITED;
34 a->dataout_timeout = NA_DATAOUT_TIMEOUT;
35 a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES;
36 a->nopin_timeout = NA_NOPIN_TIMEOUT;
37 a->nopin_response_timeout = NA_NOPIN_RESPONSE_TIMEOUT;
38 a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS;
39 a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS;
40 a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS;
41 a->default_erl = tpg->tpg_attrib.default_erl;
44 int iscsit_na_dataout_timeout(
45 struct iscsi_node_acl *acl,
48 struct iscsi_node_attrib *a = &acl->node_attrib;
50 if (dataout_timeout > NA_DATAOUT_TIMEOUT_MAX) {
51 pr_err("Requested DataOut Timeout %u larger than"
52 " maximum %u\n", dataout_timeout,
53 NA_DATAOUT_TIMEOUT_MAX);
55 } else if (dataout_timeout < NA_DATAOUT_TIMEOUT_MIX) {
56 pr_err("Requested DataOut Timeout %u smaller than"
57 " minimum %u\n", dataout_timeout,
58 NA_DATAOUT_TIMEOUT_MIX);
62 a->dataout_timeout = dataout_timeout;
63 pr_debug("Set DataOut Timeout to %u for Initiator Node"
64 " %s\n", a->dataout_timeout, iscsit_na_get_initiatorname(acl));
69 int iscsit_na_dataout_timeout_retries(
70 struct iscsi_node_acl *acl,
71 u32 dataout_timeout_retries)
73 struct iscsi_node_attrib *a = &acl->node_attrib;
75 if (dataout_timeout_retries > NA_DATAOUT_TIMEOUT_RETRIES_MAX) {
76 pr_err("Requested DataOut Timeout Retries %u larger"
77 " than maximum %u", dataout_timeout_retries,
78 NA_DATAOUT_TIMEOUT_RETRIES_MAX);
80 } else if (dataout_timeout_retries < NA_DATAOUT_TIMEOUT_RETRIES_MIN) {
81 pr_err("Requested DataOut Timeout Retries %u smaller"
82 " than minimum %u", dataout_timeout_retries,
83 NA_DATAOUT_TIMEOUT_RETRIES_MIN);
87 a->dataout_timeout_retries = dataout_timeout_retries;
88 pr_debug("Set DataOut Timeout Retries to %u for"
89 " Initiator Node %s\n", a->dataout_timeout_retries,
90 iscsit_na_get_initiatorname(acl));
95 int iscsit_na_nopin_timeout(
96 struct iscsi_node_acl *acl,
99 struct iscsi_node_attrib *a = &acl->node_attrib;
100 struct iscsit_session *sess;
101 struct iscsit_conn *conn;
102 struct se_node_acl *se_nacl = &a->nacl->se_node_acl;
103 struct se_session *se_sess;
104 u32 orig_nopin_timeout = a->nopin_timeout;
106 if (nopin_timeout > NA_NOPIN_TIMEOUT_MAX) {
107 pr_err("Requested NopIn Timeout %u larger than maximum"
108 " %u\n", nopin_timeout, NA_NOPIN_TIMEOUT_MAX);
110 } else if ((nopin_timeout < NA_NOPIN_TIMEOUT_MIN) &&
111 (nopin_timeout != 0)) {
112 pr_err("Requested NopIn Timeout %u smaller than"
113 " minimum %u and not 0\n", nopin_timeout,
114 NA_NOPIN_TIMEOUT_MIN);
118 a->nopin_timeout = nopin_timeout;
119 pr_debug("Set NopIn Timeout to %u for Initiator"
120 " Node %s\n", a->nopin_timeout,
121 iscsit_na_get_initiatorname(acl));
123 * Reenable disabled nopin_timeout timer for all iSCSI connections.
125 if (!orig_nopin_timeout) {
126 spin_lock_bh(&se_nacl->nacl_sess_lock);
127 se_sess = se_nacl->nacl_sess;
129 sess = se_sess->fabric_sess_ptr;
131 spin_lock(&sess->conn_lock);
132 list_for_each_entry(conn, &sess->sess_conn_list,
134 if (conn->conn_state !=
135 TARG_CONN_STATE_LOGGED_IN)
138 spin_lock(&conn->nopin_timer_lock);
139 __iscsit_start_nopin_timer(conn);
140 spin_unlock(&conn->nopin_timer_lock);
142 spin_unlock(&sess->conn_lock);
144 spin_unlock_bh(&se_nacl->nacl_sess_lock);
150 int iscsit_na_nopin_response_timeout(
151 struct iscsi_node_acl *acl,
152 u32 nopin_response_timeout)
154 struct iscsi_node_attrib *a = &acl->node_attrib;
156 if (nopin_response_timeout > NA_NOPIN_RESPONSE_TIMEOUT_MAX) {
157 pr_err("Requested NopIn Response Timeout %u larger"
158 " than maximum %u\n", nopin_response_timeout,
159 NA_NOPIN_RESPONSE_TIMEOUT_MAX);
161 } else if (nopin_response_timeout < NA_NOPIN_RESPONSE_TIMEOUT_MIN) {
162 pr_err("Requested NopIn Response Timeout %u smaller"
163 " than minimum %u\n", nopin_response_timeout,
164 NA_NOPIN_RESPONSE_TIMEOUT_MIN);
168 a->nopin_response_timeout = nopin_response_timeout;
169 pr_debug("Set NopIn Response Timeout to %u for"
170 " Initiator Node %s\n", a->nopin_timeout,
171 iscsit_na_get_initiatorname(acl));
176 int iscsit_na_random_datain_pdu_offsets(
177 struct iscsi_node_acl *acl,
178 u32 random_datain_pdu_offsets)
180 struct iscsi_node_attrib *a = &acl->node_attrib;
182 if (random_datain_pdu_offsets != 0 && random_datain_pdu_offsets != 1) {
183 pr_err("Requested Random DataIN PDU Offsets: %u not"
184 " 0 or 1\n", random_datain_pdu_offsets);
188 a->random_datain_pdu_offsets = random_datain_pdu_offsets;
189 pr_debug("Set Random DataIN PDU Offsets to %u for"
190 " Initiator Node %s\n", a->random_datain_pdu_offsets,
191 iscsit_na_get_initiatorname(acl));
196 int iscsit_na_random_datain_seq_offsets(
197 struct iscsi_node_acl *acl,
198 u32 random_datain_seq_offsets)
200 struct iscsi_node_attrib *a = &acl->node_attrib;
202 if (random_datain_seq_offsets != 0 && random_datain_seq_offsets != 1) {
203 pr_err("Requested Random DataIN Sequence Offsets: %u"
204 " not 0 or 1\n", random_datain_seq_offsets);
208 a->random_datain_seq_offsets = random_datain_seq_offsets;
209 pr_debug("Set Random DataIN Sequence Offsets to %u for"
210 " Initiator Node %s\n", a->random_datain_seq_offsets,
211 iscsit_na_get_initiatorname(acl));
216 int iscsit_na_random_r2t_offsets(
217 struct iscsi_node_acl *acl,
218 u32 random_r2t_offsets)
220 struct iscsi_node_attrib *a = &acl->node_attrib;
222 if (random_r2t_offsets != 0 && random_r2t_offsets != 1) {
223 pr_err("Requested Random R2T Offsets: %u not"
224 " 0 or 1\n", random_r2t_offsets);
228 a->random_r2t_offsets = random_r2t_offsets;
229 pr_debug("Set Random R2T Offsets to %u for"
230 " Initiator Node %s\n", a->random_r2t_offsets,
231 iscsit_na_get_initiatorname(acl));
236 int iscsit_na_default_erl(
237 struct iscsi_node_acl *acl,
240 struct iscsi_node_attrib *a = &acl->node_attrib;
242 if (default_erl != 0 && default_erl != 1 && default_erl != 2) {
243 pr_err("Requested default ERL: %u not 0, 1, or 2\n",
248 a->default_erl = default_erl;
249 pr_debug("Set use ERL0 flag to %u for Initiator"
250 " Node %s\n", a->default_erl,
251 iscsit_na_get_initiatorname(acl));