Thomas Gleixner | c942fdd | 2019-05-27 08:55:06 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 2 | /******************************************************************************* |
| 3 | * This file contains the main functions related to Initiator Node Attributes. |
| 4 | * |
Nicholas Bellinger | 4c76251 | 2013-09-05 15:29:12 -0700 | [diff] [blame] | 5 | * (c) Copyright 2007-2013 Datera, Inc. |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 6 | * |
| 7 | * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> |
| 8 | * |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 9 | ******************************************************************************/ |
| 10 | |
| 11 | #include <target/target_core_base.h> |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 12 | |
Sagi Grimberg | 67f091f | 2015-01-07 14:57:31 +0200 | [diff] [blame] | 13 | #include <target/iscsi/iscsi_target_core.h> |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 14 | #include "iscsi_target_device.h" |
| 15 | #include "iscsi_target_tpg.h" |
| 16 | #include "iscsi_target_util.h" |
| 17 | #include "iscsi_target_nodeattrib.h" |
| 18 | |
| 19 | static inline char *iscsit_na_get_initiatorname( |
| 20 | struct iscsi_node_acl *nacl) |
| 21 | { |
| 22 | struct se_node_acl *se_nacl = &nacl->se_node_acl; |
| 23 | |
| 24 | return &se_nacl->initiatorname[0]; |
| 25 | } |
| 26 | |
| 27 | void iscsit_set_default_node_attribues( |
Nicholas Bellinger | d1fa7a1 | 2013-11-20 11:57:18 -0800 | [diff] [blame] | 28 | struct iscsi_node_acl *acl, |
| 29 | struct iscsi_portal_group *tpg) |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 30 | { |
| 31 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 32 | |
| 33 | a->dataout_timeout = NA_DATAOUT_TIMEOUT; |
| 34 | a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES; |
| 35 | a->nopin_timeout = NA_NOPIN_TIMEOUT; |
| 36 | a->nopin_response_timeout = NA_NOPIN_RESPONSE_TIMEOUT; |
| 37 | a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS; |
| 38 | a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS; |
| 39 | a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS; |
Nicholas Bellinger | d1fa7a1 | 2013-11-20 11:57:18 -0800 | [diff] [blame] | 40 | a->default_erl = tpg->tpg_attrib.default_erl; |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 41 | } |
| 42 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 43 | int iscsit_na_dataout_timeout( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 44 | struct iscsi_node_acl *acl, |
| 45 | u32 dataout_timeout) |
| 46 | { |
| 47 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 48 | |
| 49 | if (dataout_timeout > NA_DATAOUT_TIMEOUT_MAX) { |
| 50 | pr_err("Requested DataOut Timeout %u larger than" |
| 51 | " maximum %u\n", dataout_timeout, |
| 52 | NA_DATAOUT_TIMEOUT_MAX); |
| 53 | return -EINVAL; |
| 54 | } else if (dataout_timeout < NA_DATAOUT_TIMEOUT_MIX) { |
| 55 | pr_err("Requested DataOut Timeout %u smaller than" |
| 56 | " minimum %u\n", dataout_timeout, |
| 57 | NA_DATAOUT_TIMEOUT_MIX); |
| 58 | return -EINVAL; |
| 59 | } |
| 60 | |
| 61 | a->dataout_timeout = dataout_timeout; |
| 62 | pr_debug("Set DataOut Timeout to %u for Initiator Node" |
| 63 | " %s\n", a->dataout_timeout, iscsit_na_get_initiatorname(acl)); |
| 64 | |
| 65 | return 0; |
| 66 | } |
| 67 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 68 | int iscsit_na_dataout_timeout_retries( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 69 | struct iscsi_node_acl *acl, |
| 70 | u32 dataout_timeout_retries) |
| 71 | { |
| 72 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 73 | |
| 74 | if (dataout_timeout_retries > NA_DATAOUT_TIMEOUT_RETRIES_MAX) { |
| 75 | pr_err("Requested DataOut Timeout Retries %u larger" |
| 76 | " than maximum %u", dataout_timeout_retries, |
| 77 | NA_DATAOUT_TIMEOUT_RETRIES_MAX); |
| 78 | return -EINVAL; |
| 79 | } else if (dataout_timeout_retries < NA_DATAOUT_TIMEOUT_RETRIES_MIN) { |
| 80 | pr_err("Requested DataOut Timeout Retries %u smaller" |
| 81 | " than minimum %u", dataout_timeout_retries, |
| 82 | NA_DATAOUT_TIMEOUT_RETRIES_MIN); |
| 83 | return -EINVAL; |
| 84 | } |
| 85 | |
| 86 | a->dataout_timeout_retries = dataout_timeout_retries; |
| 87 | pr_debug("Set DataOut Timeout Retries to %u for" |
| 88 | " Initiator Node %s\n", a->dataout_timeout_retries, |
| 89 | iscsit_na_get_initiatorname(acl)); |
| 90 | |
| 91 | return 0; |
| 92 | } |
| 93 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 94 | int iscsit_na_nopin_timeout( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 95 | struct iscsi_node_acl *acl, |
| 96 | u32 nopin_timeout) |
| 97 | { |
| 98 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 99 | struct iscsi_session *sess; |
| 100 | struct iscsi_conn *conn; |
| 101 | struct se_node_acl *se_nacl = &a->nacl->se_node_acl; |
| 102 | struct se_session *se_sess; |
| 103 | u32 orig_nopin_timeout = a->nopin_timeout; |
| 104 | |
| 105 | if (nopin_timeout > NA_NOPIN_TIMEOUT_MAX) { |
| 106 | pr_err("Requested NopIn Timeout %u larger than maximum" |
| 107 | " %u\n", nopin_timeout, NA_NOPIN_TIMEOUT_MAX); |
| 108 | return -EINVAL; |
| 109 | } else if ((nopin_timeout < NA_NOPIN_TIMEOUT_MIN) && |
| 110 | (nopin_timeout != 0)) { |
| 111 | pr_err("Requested NopIn Timeout %u smaller than" |
| 112 | " minimum %u and not 0\n", nopin_timeout, |
| 113 | NA_NOPIN_TIMEOUT_MIN); |
| 114 | return -EINVAL; |
| 115 | } |
| 116 | |
| 117 | a->nopin_timeout = nopin_timeout; |
| 118 | pr_debug("Set NopIn Timeout to %u for Initiator" |
| 119 | " Node %s\n", a->nopin_timeout, |
| 120 | iscsit_na_get_initiatorname(acl)); |
| 121 | /* |
| 122 | * Reenable disabled nopin_timeout timer for all iSCSI connections. |
| 123 | */ |
| 124 | if (!orig_nopin_timeout) { |
| 125 | spin_lock_bh(&se_nacl->nacl_sess_lock); |
| 126 | se_sess = se_nacl->nacl_sess; |
| 127 | if (se_sess) { |
Jörn Engel | 8359cf4 | 2011-11-24 02:05:51 +0100 | [diff] [blame] | 128 | sess = se_sess->fabric_sess_ptr; |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 129 | |
| 130 | spin_lock(&sess->conn_lock); |
| 131 | list_for_each_entry(conn, &sess->sess_conn_list, |
| 132 | conn_list) { |
| 133 | if (conn->conn_state != |
| 134 | TARG_CONN_STATE_LOGGED_IN) |
| 135 | continue; |
| 136 | |
| 137 | spin_lock(&conn->nopin_timer_lock); |
| 138 | __iscsit_start_nopin_timer(conn); |
| 139 | spin_unlock(&conn->nopin_timer_lock); |
| 140 | } |
| 141 | spin_unlock(&sess->conn_lock); |
| 142 | } |
| 143 | spin_unlock_bh(&se_nacl->nacl_sess_lock); |
| 144 | } |
| 145 | |
| 146 | return 0; |
| 147 | } |
| 148 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 149 | int iscsit_na_nopin_response_timeout( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 150 | struct iscsi_node_acl *acl, |
| 151 | u32 nopin_response_timeout) |
| 152 | { |
| 153 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 154 | |
| 155 | if (nopin_response_timeout > NA_NOPIN_RESPONSE_TIMEOUT_MAX) { |
| 156 | pr_err("Requested NopIn Response Timeout %u larger" |
| 157 | " than maximum %u\n", nopin_response_timeout, |
| 158 | NA_NOPIN_RESPONSE_TIMEOUT_MAX); |
| 159 | return -EINVAL; |
| 160 | } else if (nopin_response_timeout < NA_NOPIN_RESPONSE_TIMEOUT_MIN) { |
| 161 | pr_err("Requested NopIn Response Timeout %u smaller" |
| 162 | " than minimum %u\n", nopin_response_timeout, |
| 163 | NA_NOPIN_RESPONSE_TIMEOUT_MIN); |
| 164 | return -EINVAL; |
| 165 | } |
| 166 | |
| 167 | a->nopin_response_timeout = nopin_response_timeout; |
| 168 | pr_debug("Set NopIn Response Timeout to %u for" |
| 169 | " Initiator Node %s\n", a->nopin_timeout, |
| 170 | iscsit_na_get_initiatorname(acl)); |
| 171 | |
| 172 | return 0; |
| 173 | } |
| 174 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 175 | int iscsit_na_random_datain_pdu_offsets( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 176 | struct iscsi_node_acl *acl, |
| 177 | u32 random_datain_pdu_offsets) |
| 178 | { |
| 179 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 180 | |
| 181 | if (random_datain_pdu_offsets != 0 && random_datain_pdu_offsets != 1) { |
| 182 | pr_err("Requested Random DataIN PDU Offsets: %u not" |
| 183 | " 0 or 1\n", random_datain_pdu_offsets); |
| 184 | return -EINVAL; |
| 185 | } |
| 186 | |
| 187 | a->random_datain_pdu_offsets = random_datain_pdu_offsets; |
| 188 | pr_debug("Set Random DataIN PDU Offsets to %u for" |
| 189 | " Initiator Node %s\n", a->random_datain_pdu_offsets, |
| 190 | iscsit_na_get_initiatorname(acl)); |
| 191 | |
| 192 | return 0; |
| 193 | } |
| 194 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 195 | int iscsit_na_random_datain_seq_offsets( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 196 | struct iscsi_node_acl *acl, |
| 197 | u32 random_datain_seq_offsets) |
| 198 | { |
| 199 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 200 | |
| 201 | if (random_datain_seq_offsets != 0 && random_datain_seq_offsets != 1) { |
| 202 | pr_err("Requested Random DataIN Sequence Offsets: %u" |
| 203 | " not 0 or 1\n", random_datain_seq_offsets); |
| 204 | return -EINVAL; |
| 205 | } |
| 206 | |
| 207 | a->random_datain_seq_offsets = random_datain_seq_offsets; |
| 208 | pr_debug("Set Random DataIN Sequence Offsets to %u for" |
| 209 | " Initiator Node %s\n", a->random_datain_seq_offsets, |
| 210 | iscsit_na_get_initiatorname(acl)); |
| 211 | |
| 212 | return 0; |
| 213 | } |
| 214 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 215 | int iscsit_na_random_r2t_offsets( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 216 | struct iscsi_node_acl *acl, |
| 217 | u32 random_r2t_offsets) |
| 218 | { |
| 219 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 220 | |
| 221 | if (random_r2t_offsets != 0 && random_r2t_offsets != 1) { |
| 222 | pr_err("Requested Random R2T Offsets: %u not" |
| 223 | " 0 or 1\n", random_r2t_offsets); |
| 224 | return -EINVAL; |
| 225 | } |
| 226 | |
| 227 | a->random_r2t_offsets = random_r2t_offsets; |
| 228 | pr_debug("Set Random R2T Offsets to %u for" |
| 229 | " Initiator Node %s\n", a->random_r2t_offsets, |
| 230 | iscsit_na_get_initiatorname(acl)); |
| 231 | |
| 232 | return 0; |
| 233 | } |
| 234 | |
Dan Carpenter | f760903 | 2012-03-17 16:11:52 +0300 | [diff] [blame] | 235 | int iscsit_na_default_erl( |
Nicholas Bellinger | e48354c | 2011-07-23 06:43:04 +0000 | [diff] [blame] | 236 | struct iscsi_node_acl *acl, |
| 237 | u32 default_erl) |
| 238 | { |
| 239 | struct iscsi_node_attrib *a = &acl->node_attrib; |
| 240 | |
| 241 | if (default_erl != 0 && default_erl != 1 && default_erl != 2) { |
| 242 | pr_err("Requested default ERL: %u not 0, 1, or 2\n", |
| 243 | default_erl); |
| 244 | return -EINVAL; |
| 245 | } |
| 246 | |
| 247 | a->default_erl = default_erl; |
| 248 | pr_debug("Set use ERL0 flag to %u for Initiator" |
| 249 | " Node %s\n", a->default_erl, |
| 250 | iscsit_na_get_initiatorname(acl)); |
| 251 | |
| 252 | return 0; |
| 253 | } |