Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * This file contains the main functions related to Initiator Node Attributes. |
| 3 | * |
Nicholas Bellinger | 4c76251 | 2013-09-05 15:29:12 -0700 | [diff] [blame] | 4 | * (c) Copyright 2007-2013 Datera, Inc. |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 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> |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 20 | |
| 21 | #include "iscsi_target_core.h" |
| 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( |
| 36 | struct iscsi_node_acl *acl) |
| 37 | { |
| 38 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 39 | |
| 40 | a->dataout_timeout = NA_DATAOUT_TIMEOUT; |
| 41 | a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES; |
| 42 | a->nopin_timeout = NA_NOPIN_TIMEOUT; |
| 43 | a->nopin_response_timeout = NA_NOPIN_RESPONSE_TIMEOUT; |
| 44 | a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS; |
| 45 | a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS; |
| 46 | a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS; |
| 47 | a->default_erl = NA_DEFAULT_ERL; |
| 48 | } |
| 49 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 50 | int iscsit_na_dataout_timeout( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 51 | struct iscsi_node_acl *acl, |
| 52 | u32 dataout_timeout) |
| 53 | { |
| 54 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 55 | |
| 56 | if (dataout_timeout > NA_DATAOUT_TIMEOUT_MAX) { |
| 57 | pr_err("Requested DataOut Timeout %u larger than" |
| 58 | " maximum %u\n", dataout_timeout, |
| 59 | NA_DATAOUT_TIMEOUT_MAX); |
| 60 | return -EINVAL; |
| 61 | } else if (dataout_timeout < NA_DATAOUT_TIMEOUT_MIX) { |
| 62 | pr_err("Requested DataOut Timeout %u smaller than" |
| 63 | " minimum %u\n", dataout_timeout, |
| 64 | NA_DATAOUT_TIMEOUT_MIX); |
| 65 | return -EINVAL; |
| 66 | } |
| 67 | |
| 68 | a->dataout_timeout = dataout_timeout; |
| 69 | pr_debug("Set DataOut Timeout to %u for Initiator Node" |
| 70 | " %s\n", a->dataout_timeout, iscsit_na_get_initiatorname(acl)); |
| 71 | |
| 72 | return 0; |
| 73 | } |
| 74 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 75 | int iscsit_na_dataout_timeout_retries( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 76 | struct iscsi_node_acl *acl, |
| 77 | u32 dataout_timeout_retries) |
| 78 | { |
| 79 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 80 | |
| 81 | if (dataout_timeout_retries > NA_DATAOUT_TIMEOUT_RETRIES_MAX) { |
| 82 | pr_err("Requested DataOut Timeout Retries %u larger" |
| 83 | " than maximum %u", dataout_timeout_retries, |
| 84 | NA_DATAOUT_TIMEOUT_RETRIES_MAX); |
| 85 | return -EINVAL; |
| 86 | } else if (dataout_timeout_retries < NA_DATAOUT_TIMEOUT_RETRIES_MIN) { |
| 87 | pr_err("Requested DataOut Timeout Retries %u smaller" |
| 88 | " than minimum %u", dataout_timeout_retries, |
| 89 | NA_DATAOUT_TIMEOUT_RETRIES_MIN); |
| 90 | return -EINVAL; |
| 91 | } |
| 92 | |
| 93 | a->dataout_timeout_retries = dataout_timeout_retries; |
| 94 | pr_debug("Set DataOut Timeout Retries to %u for" |
| 95 | " Initiator Node %s\n", a->dataout_timeout_retries, |
| 96 | iscsit_na_get_initiatorname(acl)); |
| 97 | |
| 98 | return 0; |
| 99 | } |
| 100 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 101 | int iscsit_na_nopin_timeout( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 102 | struct iscsi_node_acl *acl, |
| 103 | u32 nopin_timeout) |
| 104 | { |
| 105 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 106 | struct iscsi_session *sess; |
| 107 | struct iscsi_conn *conn; |
| 108 | struct se_node_acl *se_nacl = &a->nacl->se_node_acl; |
| 109 | struct se_session *se_sess; |
| 110 | u32 orig_nopin_timeout = a->nopin_timeout; |
| 111 | |
| 112 | if (nopin_timeout > NA_NOPIN_TIMEOUT_MAX) { |
| 113 | pr_err("Requested NopIn Timeout %u larger than maximum" |
| 114 | " %u\n", nopin_timeout, NA_NOPIN_TIMEOUT_MAX); |
| 115 | return -EINVAL; |
| 116 | } else if ((nopin_timeout < NA_NOPIN_TIMEOUT_MIN) && |
| 117 | (nopin_timeout != 0)) { |
| 118 | pr_err("Requested NopIn Timeout %u smaller than" |
| 119 | " minimum %u and not 0\n", nopin_timeout, |
| 120 | NA_NOPIN_TIMEOUT_MIN); |
| 121 | return -EINVAL; |
| 122 | } |
| 123 | |
| 124 | a->nopin_timeout = nopin_timeout; |
| 125 | pr_debug("Set NopIn Timeout to %u for Initiator" |
| 126 | " Node %s\n", a->nopin_timeout, |
| 127 | iscsit_na_get_initiatorname(acl)); |
| 128 | /* |
| 129 | * Reenable disabled nopin_timeout timer for all iSCSI connections. |
| 130 | */ |
| 131 | if (!orig_nopin_timeout) { |
| 132 | spin_lock_bh(&se_nacl->nacl_sess_lock); |
| 133 | se_sess = se_nacl->nacl_sess; |
| 134 | if (se_sess) { |
Jörn Engel | 8359cf4 | 2011-11-24 02:05:51 +0100 | [diff] [blame] | 135 | sess = se_sess->fabric_sess_ptr; |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 136 | |
| 137 | spin_lock(&sess->conn_lock); |
| 138 | list_for_each_entry(conn, &sess->sess_conn_list, |
| 139 | conn_list) { |
| 140 | if (conn->conn_state != |
| 141 | TARG_CONN_STATE_LOGGED_IN) |
| 142 | continue; |
| 143 | |
| 144 | spin_lock(&conn->nopin_timer_lock); |
| 145 | __iscsit_start_nopin_timer(conn); |
| 146 | spin_unlock(&conn->nopin_timer_lock); |
| 147 | } |
| 148 | spin_unlock(&sess->conn_lock); |
| 149 | } |
| 150 | spin_unlock_bh(&se_nacl->nacl_sess_lock); |
| 151 | } |
| 152 | |
| 153 | return 0; |
| 154 | } |
| 155 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 156 | int iscsit_na_nopin_response_timeout( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 157 | struct iscsi_node_acl *acl, |
| 158 | u32 nopin_response_timeout) |
| 159 | { |
| 160 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 161 | |
| 162 | if (nopin_response_timeout > NA_NOPIN_RESPONSE_TIMEOUT_MAX) { |
| 163 | pr_err("Requested NopIn Response Timeout %u larger" |
| 164 | " than maximum %u\n", nopin_response_timeout, |
| 165 | NA_NOPIN_RESPONSE_TIMEOUT_MAX); |
| 166 | return -EINVAL; |
| 167 | } else if (nopin_response_timeout < NA_NOPIN_RESPONSE_TIMEOUT_MIN) { |
| 168 | pr_err("Requested NopIn Response Timeout %u smaller" |
| 169 | " than minimum %u\n", nopin_response_timeout, |
| 170 | NA_NOPIN_RESPONSE_TIMEOUT_MIN); |
| 171 | return -EINVAL; |
| 172 | } |
| 173 | |
| 174 | a->nopin_response_timeout = nopin_response_timeout; |
| 175 | pr_debug("Set NopIn Response Timeout to %u for" |
| 176 | " Initiator Node %s\n", a->nopin_timeout, |
| 177 | iscsit_na_get_initiatorname(acl)); |
| 178 | |
| 179 | return 0; |
| 180 | } |
| 181 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 182 | int iscsit_na_random_datain_pdu_offsets( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 183 | struct iscsi_node_acl *acl, |
| 184 | u32 random_datain_pdu_offsets) |
| 185 | { |
| 186 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 187 | |
| 188 | if (random_datain_pdu_offsets != 0 && random_datain_pdu_offsets != 1) { |
| 189 | pr_err("Requested Random DataIN PDU Offsets: %u not" |
| 190 | " 0 or 1\n", random_datain_pdu_offsets); |
| 191 | return -EINVAL; |
| 192 | } |
| 193 | |
| 194 | a->random_datain_pdu_offsets = random_datain_pdu_offsets; |
| 195 | pr_debug("Set Random DataIN PDU Offsets to %u for" |
| 196 | " Initiator Node %s\n", a->random_datain_pdu_offsets, |
| 197 | iscsit_na_get_initiatorname(acl)); |
| 198 | |
| 199 | return 0; |
| 200 | } |
| 201 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 202 | int iscsit_na_random_datain_seq_offsets( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 203 | struct iscsi_node_acl *acl, |
| 204 | u32 random_datain_seq_offsets) |
| 205 | { |
| 206 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 207 | |
| 208 | if (random_datain_seq_offsets != 0 && random_datain_seq_offsets != 1) { |
| 209 | pr_err("Requested Random DataIN Sequence Offsets: %u" |
| 210 | " not 0 or 1\n", random_datain_seq_offsets); |
| 211 | return -EINVAL; |
| 212 | } |
| 213 | |
| 214 | a->random_datain_seq_offsets = random_datain_seq_offsets; |
| 215 | pr_debug("Set Random DataIN Sequence Offsets to %u for" |
| 216 | " Initiator Node %s\n", a->random_datain_seq_offsets, |
| 217 | iscsit_na_get_initiatorname(acl)); |
| 218 | |
| 219 | return 0; |
| 220 | } |
| 221 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 222 | int iscsit_na_random_r2t_offsets( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 223 | struct iscsi_node_acl *acl, |
| 224 | u32 random_r2t_offsets) |
| 225 | { |
| 226 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 227 | |
| 228 | if (random_r2t_offsets != 0 && random_r2t_offsets != 1) { |
| 229 | pr_err("Requested Random R2T Offsets: %u not" |
| 230 | " 0 or 1\n", random_r2t_offsets); |
| 231 | return -EINVAL; |
| 232 | } |
| 233 | |
| 234 | a->random_r2t_offsets = random_r2t_offsets; |
| 235 | pr_debug("Set Random R2T Offsets to %u for" |
| 236 | " Initiator Node %s\n", a->random_r2t_offsets, |
| 237 | iscsit_na_get_initiatorname(acl)); |
| 238 | |
| 239 | return 0; |
| 240 | } |
| 241 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 242 | int iscsit_na_default_erl( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 243 | struct iscsi_node_acl *acl, |
| 244 | u32 default_erl) |
| 245 | { |
| 246 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 247 | |
| 248 | if (default_erl != 0 && default_erl != 1 && default_erl != 2) { |
| 249 | pr_err("Requested default ERL: %u not 0, 1, or 2\n", |
| 250 | default_erl); |
| 251 | return -EINVAL; |
| 252 | } |
| 253 | |
| 254 | a->default_erl = default_erl; |
| 255 | pr_debug("Set use ERL0 flag to %u for Initiator" |
| 256 | " Node %s\n", a->default_erl, |
| 257 | iscsit_na_get_initiatorname(acl)); |
| 258 | |
| 259 | return 0; |
| 260 | } |