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e48354ce NB |
1 | /******************************************************************************* |
2 | * This file contains the main functions related to Initiator Node Attributes. | |
3 | * | |
4c76251e | 4 | * (c) Copyright 2007-2013 Datera, Inc. |
e48354ce NB |
5 | * |
6 | * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | ******************************************************************************/ | |
18 | ||
19 | #include <target/target_core_base.h> | |
e48354ce | 20 | |
67f091f2 | 21 | #include <target/iscsi/iscsi_target_core.h> |
e48354ce NB |
22 | #include "iscsi_target_device.h" |
23 | #include "iscsi_target_tpg.h" | |
24 | #include "iscsi_target_util.h" | |
25 | #include "iscsi_target_nodeattrib.h" | |
26 | ||
27 | static inline char *iscsit_na_get_initiatorname( | |
28 | struct iscsi_node_acl *nacl) | |
29 | { | |
30 | struct se_node_acl *se_nacl = &nacl->se_node_acl; | |
31 | ||
32 | return &se_nacl->initiatorname[0]; | |
33 | } | |
34 | ||
35 | void iscsit_set_default_node_attribues( | |
d1fa7a1d NB |
36 | struct iscsi_node_acl *acl, |
37 | struct iscsi_portal_group *tpg) | |
e48354ce NB |
38 | { |
39 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
40 | ||
41 | a->dataout_timeout = NA_DATAOUT_TIMEOUT; | |
42 | a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES; | |
43 | a->nopin_timeout = NA_NOPIN_TIMEOUT; | |
44 | a->nopin_response_timeout = NA_NOPIN_RESPONSE_TIMEOUT; | |
45 | a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS; | |
46 | a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS; | |
47 | a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS; | |
d1fa7a1d | 48 | a->default_erl = tpg->tpg_attrib.default_erl; |
e48354ce NB |
49 | } |
50 | ||
f760903a | 51 | int iscsit_na_dataout_timeout( |
e48354ce NB |
52 | struct iscsi_node_acl *acl, |
53 | u32 dataout_timeout) | |
54 | { | |
55 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
56 | ||
57 | if (dataout_timeout > NA_DATAOUT_TIMEOUT_MAX) { | |
58 | pr_err("Requested DataOut Timeout %u larger than" | |
59 | " maximum %u\n", dataout_timeout, | |
60 | NA_DATAOUT_TIMEOUT_MAX); | |
61 | return -EINVAL; | |
62 | } else if (dataout_timeout < NA_DATAOUT_TIMEOUT_MIX) { | |
63 | pr_err("Requested DataOut Timeout %u smaller than" | |
64 | " minimum %u\n", dataout_timeout, | |
65 | NA_DATAOUT_TIMEOUT_MIX); | |
66 | return -EINVAL; | |
67 | } | |
68 | ||
69 | a->dataout_timeout = dataout_timeout; | |
70 | pr_debug("Set DataOut Timeout to %u for Initiator Node" | |
71 | " %s\n", a->dataout_timeout, iscsit_na_get_initiatorname(acl)); | |
72 | ||
73 | return 0; | |
74 | } | |
75 | ||
f760903a | 76 | int iscsit_na_dataout_timeout_retries( |
e48354ce NB |
77 | struct iscsi_node_acl *acl, |
78 | u32 dataout_timeout_retries) | |
79 | { | |
80 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
81 | ||
82 | if (dataout_timeout_retries > NA_DATAOUT_TIMEOUT_RETRIES_MAX) { | |
83 | pr_err("Requested DataOut Timeout Retries %u larger" | |
84 | " than maximum %u", dataout_timeout_retries, | |
85 | NA_DATAOUT_TIMEOUT_RETRIES_MAX); | |
86 | return -EINVAL; | |
87 | } else if (dataout_timeout_retries < NA_DATAOUT_TIMEOUT_RETRIES_MIN) { | |
88 | pr_err("Requested DataOut Timeout Retries %u smaller" | |
89 | " than minimum %u", dataout_timeout_retries, | |
90 | NA_DATAOUT_TIMEOUT_RETRIES_MIN); | |
91 | return -EINVAL; | |
92 | } | |
93 | ||
94 | a->dataout_timeout_retries = dataout_timeout_retries; | |
95 | pr_debug("Set DataOut Timeout Retries to %u for" | |
96 | " Initiator Node %s\n", a->dataout_timeout_retries, | |
97 | iscsit_na_get_initiatorname(acl)); | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
f760903a | 102 | int iscsit_na_nopin_timeout( |
e48354ce NB |
103 | struct iscsi_node_acl *acl, |
104 | u32 nopin_timeout) | |
105 | { | |
106 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
107 | struct iscsi_session *sess; | |
108 | struct iscsi_conn *conn; | |
109 | struct se_node_acl *se_nacl = &a->nacl->se_node_acl; | |
110 | struct se_session *se_sess; | |
111 | u32 orig_nopin_timeout = a->nopin_timeout; | |
112 | ||
113 | if (nopin_timeout > NA_NOPIN_TIMEOUT_MAX) { | |
114 | pr_err("Requested NopIn Timeout %u larger than maximum" | |
115 | " %u\n", nopin_timeout, NA_NOPIN_TIMEOUT_MAX); | |
116 | return -EINVAL; | |
117 | } else if ((nopin_timeout < NA_NOPIN_TIMEOUT_MIN) && | |
118 | (nopin_timeout != 0)) { | |
119 | pr_err("Requested NopIn Timeout %u smaller than" | |
120 | " minimum %u and not 0\n", nopin_timeout, | |
121 | NA_NOPIN_TIMEOUT_MIN); | |
122 | return -EINVAL; | |
123 | } | |
124 | ||
125 | a->nopin_timeout = nopin_timeout; | |
126 | pr_debug("Set NopIn Timeout to %u for Initiator" | |
127 | " Node %s\n", a->nopin_timeout, | |
128 | iscsit_na_get_initiatorname(acl)); | |
129 | /* | |
130 | * Reenable disabled nopin_timeout timer for all iSCSI connections. | |
131 | */ | |
132 | if (!orig_nopin_timeout) { | |
133 | spin_lock_bh(&se_nacl->nacl_sess_lock); | |
134 | se_sess = se_nacl->nacl_sess; | |
135 | if (se_sess) { | |
8359cf43 | 136 | sess = se_sess->fabric_sess_ptr; |
e48354ce NB |
137 | |
138 | spin_lock(&sess->conn_lock); | |
139 | list_for_each_entry(conn, &sess->sess_conn_list, | |
140 | conn_list) { | |
141 | if (conn->conn_state != | |
142 | TARG_CONN_STATE_LOGGED_IN) | |
143 | continue; | |
144 | ||
145 | spin_lock(&conn->nopin_timer_lock); | |
146 | __iscsit_start_nopin_timer(conn); | |
147 | spin_unlock(&conn->nopin_timer_lock); | |
148 | } | |
149 | spin_unlock(&sess->conn_lock); | |
150 | } | |
151 | spin_unlock_bh(&se_nacl->nacl_sess_lock); | |
152 | } | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
f760903a | 157 | int iscsit_na_nopin_response_timeout( |
e48354ce NB |
158 | struct iscsi_node_acl *acl, |
159 | u32 nopin_response_timeout) | |
160 | { | |
161 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
162 | ||
163 | if (nopin_response_timeout > NA_NOPIN_RESPONSE_TIMEOUT_MAX) { | |
164 | pr_err("Requested NopIn Response Timeout %u larger" | |
165 | " than maximum %u\n", nopin_response_timeout, | |
166 | NA_NOPIN_RESPONSE_TIMEOUT_MAX); | |
167 | return -EINVAL; | |
168 | } else if (nopin_response_timeout < NA_NOPIN_RESPONSE_TIMEOUT_MIN) { | |
169 | pr_err("Requested NopIn Response Timeout %u smaller" | |
170 | " than minimum %u\n", nopin_response_timeout, | |
171 | NA_NOPIN_RESPONSE_TIMEOUT_MIN); | |
172 | return -EINVAL; | |
173 | } | |
174 | ||
175 | a->nopin_response_timeout = nopin_response_timeout; | |
176 | pr_debug("Set NopIn Response Timeout to %u for" | |
177 | " Initiator Node %s\n", a->nopin_timeout, | |
178 | iscsit_na_get_initiatorname(acl)); | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
f760903a | 183 | int iscsit_na_random_datain_pdu_offsets( |
e48354ce NB |
184 | struct iscsi_node_acl *acl, |
185 | u32 random_datain_pdu_offsets) | |
186 | { | |
187 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
188 | ||
189 | if (random_datain_pdu_offsets != 0 && random_datain_pdu_offsets != 1) { | |
190 | pr_err("Requested Random DataIN PDU Offsets: %u not" | |
191 | " 0 or 1\n", random_datain_pdu_offsets); | |
192 | return -EINVAL; | |
193 | } | |
194 | ||
195 | a->random_datain_pdu_offsets = random_datain_pdu_offsets; | |
196 | pr_debug("Set Random DataIN PDU Offsets to %u for" | |
197 | " Initiator Node %s\n", a->random_datain_pdu_offsets, | |
198 | iscsit_na_get_initiatorname(acl)); | |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
f760903a | 203 | int iscsit_na_random_datain_seq_offsets( |
e48354ce NB |
204 | struct iscsi_node_acl *acl, |
205 | u32 random_datain_seq_offsets) | |
206 | { | |
207 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
208 | ||
209 | if (random_datain_seq_offsets != 0 && random_datain_seq_offsets != 1) { | |
210 | pr_err("Requested Random DataIN Sequence Offsets: %u" | |
211 | " not 0 or 1\n", random_datain_seq_offsets); | |
212 | return -EINVAL; | |
213 | } | |
214 | ||
215 | a->random_datain_seq_offsets = random_datain_seq_offsets; | |
216 | pr_debug("Set Random DataIN Sequence Offsets to %u for" | |
217 | " Initiator Node %s\n", a->random_datain_seq_offsets, | |
218 | iscsit_na_get_initiatorname(acl)); | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
f760903a | 223 | int iscsit_na_random_r2t_offsets( |
e48354ce NB |
224 | struct iscsi_node_acl *acl, |
225 | u32 random_r2t_offsets) | |
226 | { | |
227 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
228 | ||
229 | if (random_r2t_offsets != 0 && random_r2t_offsets != 1) { | |
230 | pr_err("Requested Random R2T Offsets: %u not" | |
231 | " 0 or 1\n", random_r2t_offsets); | |
232 | return -EINVAL; | |
233 | } | |
234 | ||
235 | a->random_r2t_offsets = random_r2t_offsets; | |
236 | pr_debug("Set Random R2T Offsets to %u for" | |
237 | " Initiator Node %s\n", a->random_r2t_offsets, | |
238 | iscsit_na_get_initiatorname(acl)); | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
f760903a | 243 | int iscsit_na_default_erl( |
e48354ce NB |
244 | struct iscsi_node_acl *acl, |
245 | u32 default_erl) | |
246 | { | |
247 | struct iscsi_node_attrib *a = &acl->node_attrib; | |
248 | ||
249 | if (default_erl != 0 && default_erl != 1 && default_erl != 2) { | |
250 | pr_err("Requested default ERL: %u not 0, 1, or 2\n", | |
251 | default_erl); | |
252 | return -EINVAL; | |
253 | } | |
254 | ||
255 | a->default_erl = default_erl; | |
256 | pr_debug("Set use ERL0 flag to %u for Initiator" | |
257 | " Node %s\n", a->default_erl, | |
258 | iscsit_na_get_initiatorname(acl)); | |
259 | ||
260 | return 0; | |
261 | } |