1e48354ceSNicholas Bellinger /******************************************************************************* 2e48354ceSNicholas Bellinger * This file contains the main functions related to Initiator Node Attributes. 3e48354ceSNicholas Bellinger * 44c76251eSNicholas Bellinger * (c) Copyright 2007-2013 Datera, Inc. 5e48354ceSNicholas Bellinger * 6e48354ceSNicholas Bellinger * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> 7e48354ceSNicholas Bellinger * 8e48354ceSNicholas Bellinger * This program is free software; you can redistribute it and/or modify 9e48354ceSNicholas Bellinger * it under the terms of the GNU General Public License as published by 10e48354ceSNicholas Bellinger * the Free Software Foundation; either version 2 of the License, or 11e48354ceSNicholas Bellinger * (at your option) any later version. 12e48354ceSNicholas Bellinger * 13e48354ceSNicholas Bellinger * This program is distributed in the hope that it will be useful, 14e48354ceSNicholas Bellinger * but WITHOUT ANY WARRANTY; without even the implied warranty of 15e48354ceSNicholas Bellinger * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16e48354ceSNicholas Bellinger * GNU General Public License for more details. 17e48354ceSNicholas Bellinger ******************************************************************************/ 18e48354ceSNicholas Bellinger 19e48354ceSNicholas Bellinger #include <target/target_core_base.h> 20e48354ceSNicholas Bellinger 21e48354ceSNicholas Bellinger #include "iscsi_target_core.h" 22e48354ceSNicholas Bellinger #include "iscsi_target_device.h" 23e48354ceSNicholas Bellinger #include "iscsi_target_tpg.h" 24e48354ceSNicholas Bellinger #include "iscsi_target_util.h" 25e48354ceSNicholas Bellinger #include "iscsi_target_nodeattrib.h" 26e48354ceSNicholas Bellinger 27e48354ceSNicholas Bellinger static inline char *iscsit_na_get_initiatorname( 28e48354ceSNicholas Bellinger struct iscsi_node_acl *nacl) 29e48354ceSNicholas Bellinger { 30e48354ceSNicholas Bellinger struct se_node_acl *se_nacl = &nacl->se_node_acl; 31e48354ceSNicholas Bellinger 32e48354ceSNicholas Bellinger return &se_nacl->initiatorname[0]; 33e48354ceSNicholas Bellinger } 34e48354ceSNicholas Bellinger 35e48354ceSNicholas Bellinger void iscsit_set_default_node_attribues( 36*d1fa7a1dSNicholas Bellinger struct iscsi_node_acl *acl, 37*d1fa7a1dSNicholas Bellinger struct iscsi_portal_group *tpg) 38e48354ceSNicholas Bellinger { 39e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 40e48354ceSNicholas Bellinger 41e48354ceSNicholas Bellinger a->dataout_timeout = NA_DATAOUT_TIMEOUT; 42e48354ceSNicholas Bellinger a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES; 43e48354ceSNicholas Bellinger a->nopin_timeout = NA_NOPIN_TIMEOUT; 44e48354ceSNicholas Bellinger a->nopin_response_timeout = NA_NOPIN_RESPONSE_TIMEOUT; 45e48354ceSNicholas Bellinger a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS; 46e48354ceSNicholas Bellinger a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS; 47e48354ceSNicholas Bellinger a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS; 48*d1fa7a1dSNicholas Bellinger a->default_erl = tpg->tpg_attrib.default_erl; 49e48354ceSNicholas Bellinger } 50e48354ceSNicholas Bellinger 51f760903aSDan Carpenter int iscsit_na_dataout_timeout( 52e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 53e48354ceSNicholas Bellinger u32 dataout_timeout) 54e48354ceSNicholas Bellinger { 55e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 56e48354ceSNicholas Bellinger 57e48354ceSNicholas Bellinger if (dataout_timeout > NA_DATAOUT_TIMEOUT_MAX) { 58e48354ceSNicholas Bellinger pr_err("Requested DataOut Timeout %u larger than" 59e48354ceSNicholas Bellinger " maximum %u\n", dataout_timeout, 60e48354ceSNicholas Bellinger NA_DATAOUT_TIMEOUT_MAX); 61e48354ceSNicholas Bellinger return -EINVAL; 62e48354ceSNicholas Bellinger } else if (dataout_timeout < NA_DATAOUT_TIMEOUT_MIX) { 63e48354ceSNicholas Bellinger pr_err("Requested DataOut Timeout %u smaller than" 64e48354ceSNicholas Bellinger " minimum %u\n", dataout_timeout, 65e48354ceSNicholas Bellinger NA_DATAOUT_TIMEOUT_MIX); 66e48354ceSNicholas Bellinger return -EINVAL; 67e48354ceSNicholas Bellinger } 68e48354ceSNicholas Bellinger 69e48354ceSNicholas Bellinger a->dataout_timeout = dataout_timeout; 70e48354ceSNicholas Bellinger pr_debug("Set DataOut Timeout to %u for Initiator Node" 71e48354ceSNicholas Bellinger " %s\n", a->dataout_timeout, iscsit_na_get_initiatorname(acl)); 72e48354ceSNicholas Bellinger 73e48354ceSNicholas Bellinger return 0; 74e48354ceSNicholas Bellinger } 75e48354ceSNicholas Bellinger 76f760903aSDan Carpenter int iscsit_na_dataout_timeout_retries( 77e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 78e48354ceSNicholas Bellinger u32 dataout_timeout_retries) 79e48354ceSNicholas Bellinger { 80e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 81e48354ceSNicholas Bellinger 82e48354ceSNicholas Bellinger if (dataout_timeout_retries > NA_DATAOUT_TIMEOUT_RETRIES_MAX) { 83e48354ceSNicholas Bellinger pr_err("Requested DataOut Timeout Retries %u larger" 84e48354ceSNicholas Bellinger " than maximum %u", dataout_timeout_retries, 85e48354ceSNicholas Bellinger NA_DATAOUT_TIMEOUT_RETRIES_MAX); 86e48354ceSNicholas Bellinger return -EINVAL; 87e48354ceSNicholas Bellinger } else if (dataout_timeout_retries < NA_DATAOUT_TIMEOUT_RETRIES_MIN) { 88e48354ceSNicholas Bellinger pr_err("Requested DataOut Timeout Retries %u smaller" 89e48354ceSNicholas Bellinger " than minimum %u", dataout_timeout_retries, 90e48354ceSNicholas Bellinger NA_DATAOUT_TIMEOUT_RETRIES_MIN); 91e48354ceSNicholas Bellinger return -EINVAL; 92e48354ceSNicholas Bellinger } 93e48354ceSNicholas Bellinger 94e48354ceSNicholas Bellinger a->dataout_timeout_retries = dataout_timeout_retries; 95e48354ceSNicholas Bellinger pr_debug("Set DataOut Timeout Retries to %u for" 96e48354ceSNicholas Bellinger " Initiator Node %s\n", a->dataout_timeout_retries, 97e48354ceSNicholas Bellinger iscsit_na_get_initiatorname(acl)); 98e48354ceSNicholas Bellinger 99e48354ceSNicholas Bellinger return 0; 100e48354ceSNicholas Bellinger } 101e48354ceSNicholas Bellinger 102f760903aSDan Carpenter int iscsit_na_nopin_timeout( 103e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 104e48354ceSNicholas Bellinger u32 nopin_timeout) 105e48354ceSNicholas Bellinger { 106e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 107e48354ceSNicholas Bellinger struct iscsi_session *sess; 108e48354ceSNicholas Bellinger struct iscsi_conn *conn; 109e48354ceSNicholas Bellinger struct se_node_acl *se_nacl = &a->nacl->se_node_acl; 110e48354ceSNicholas Bellinger struct se_session *se_sess; 111e48354ceSNicholas Bellinger u32 orig_nopin_timeout = a->nopin_timeout; 112e48354ceSNicholas Bellinger 113e48354ceSNicholas Bellinger if (nopin_timeout > NA_NOPIN_TIMEOUT_MAX) { 114e48354ceSNicholas Bellinger pr_err("Requested NopIn Timeout %u larger than maximum" 115e48354ceSNicholas Bellinger " %u\n", nopin_timeout, NA_NOPIN_TIMEOUT_MAX); 116e48354ceSNicholas Bellinger return -EINVAL; 117e48354ceSNicholas Bellinger } else if ((nopin_timeout < NA_NOPIN_TIMEOUT_MIN) && 118e48354ceSNicholas Bellinger (nopin_timeout != 0)) { 119e48354ceSNicholas Bellinger pr_err("Requested NopIn Timeout %u smaller than" 120e48354ceSNicholas Bellinger " minimum %u and not 0\n", nopin_timeout, 121e48354ceSNicholas Bellinger NA_NOPIN_TIMEOUT_MIN); 122e48354ceSNicholas Bellinger return -EINVAL; 123e48354ceSNicholas Bellinger } 124e48354ceSNicholas Bellinger 125e48354ceSNicholas Bellinger a->nopin_timeout = nopin_timeout; 126e48354ceSNicholas Bellinger pr_debug("Set NopIn Timeout to %u for Initiator" 127e48354ceSNicholas Bellinger " Node %s\n", a->nopin_timeout, 128e48354ceSNicholas Bellinger iscsit_na_get_initiatorname(acl)); 129e48354ceSNicholas Bellinger /* 130e48354ceSNicholas Bellinger * Reenable disabled nopin_timeout timer for all iSCSI connections. 131e48354ceSNicholas Bellinger */ 132e48354ceSNicholas Bellinger if (!orig_nopin_timeout) { 133e48354ceSNicholas Bellinger spin_lock_bh(&se_nacl->nacl_sess_lock); 134e48354ceSNicholas Bellinger se_sess = se_nacl->nacl_sess; 135e48354ceSNicholas Bellinger if (se_sess) { 1368359cf43SJörn Engel sess = se_sess->fabric_sess_ptr; 137e48354ceSNicholas Bellinger 138e48354ceSNicholas Bellinger spin_lock(&sess->conn_lock); 139e48354ceSNicholas Bellinger list_for_each_entry(conn, &sess->sess_conn_list, 140e48354ceSNicholas Bellinger conn_list) { 141e48354ceSNicholas Bellinger if (conn->conn_state != 142e48354ceSNicholas Bellinger TARG_CONN_STATE_LOGGED_IN) 143e48354ceSNicholas Bellinger continue; 144e48354ceSNicholas Bellinger 145e48354ceSNicholas Bellinger spin_lock(&conn->nopin_timer_lock); 146e48354ceSNicholas Bellinger __iscsit_start_nopin_timer(conn); 147e48354ceSNicholas Bellinger spin_unlock(&conn->nopin_timer_lock); 148e48354ceSNicholas Bellinger } 149e48354ceSNicholas Bellinger spin_unlock(&sess->conn_lock); 150e48354ceSNicholas Bellinger } 151e48354ceSNicholas Bellinger spin_unlock_bh(&se_nacl->nacl_sess_lock); 152e48354ceSNicholas Bellinger } 153e48354ceSNicholas Bellinger 154e48354ceSNicholas Bellinger return 0; 155e48354ceSNicholas Bellinger } 156e48354ceSNicholas Bellinger 157f760903aSDan Carpenter int iscsit_na_nopin_response_timeout( 158e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 159e48354ceSNicholas Bellinger u32 nopin_response_timeout) 160e48354ceSNicholas Bellinger { 161e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 162e48354ceSNicholas Bellinger 163e48354ceSNicholas Bellinger if (nopin_response_timeout > NA_NOPIN_RESPONSE_TIMEOUT_MAX) { 164e48354ceSNicholas Bellinger pr_err("Requested NopIn Response Timeout %u larger" 165e48354ceSNicholas Bellinger " than maximum %u\n", nopin_response_timeout, 166e48354ceSNicholas Bellinger NA_NOPIN_RESPONSE_TIMEOUT_MAX); 167e48354ceSNicholas Bellinger return -EINVAL; 168e48354ceSNicholas Bellinger } else if (nopin_response_timeout < NA_NOPIN_RESPONSE_TIMEOUT_MIN) { 169e48354ceSNicholas Bellinger pr_err("Requested NopIn Response Timeout %u smaller" 170e48354ceSNicholas Bellinger " than minimum %u\n", nopin_response_timeout, 171e48354ceSNicholas Bellinger NA_NOPIN_RESPONSE_TIMEOUT_MIN); 172e48354ceSNicholas Bellinger return -EINVAL; 173e48354ceSNicholas Bellinger } 174e48354ceSNicholas Bellinger 175e48354ceSNicholas Bellinger a->nopin_response_timeout = nopin_response_timeout; 176e48354ceSNicholas Bellinger pr_debug("Set NopIn Response Timeout to %u for" 177e48354ceSNicholas Bellinger " Initiator Node %s\n", a->nopin_timeout, 178e48354ceSNicholas Bellinger iscsit_na_get_initiatorname(acl)); 179e48354ceSNicholas Bellinger 180e48354ceSNicholas Bellinger return 0; 181e48354ceSNicholas Bellinger } 182e48354ceSNicholas Bellinger 183f760903aSDan Carpenter int iscsit_na_random_datain_pdu_offsets( 184e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 185e48354ceSNicholas Bellinger u32 random_datain_pdu_offsets) 186e48354ceSNicholas Bellinger { 187e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 188e48354ceSNicholas Bellinger 189e48354ceSNicholas Bellinger if (random_datain_pdu_offsets != 0 && random_datain_pdu_offsets != 1) { 190e48354ceSNicholas Bellinger pr_err("Requested Random DataIN PDU Offsets: %u not" 191e48354ceSNicholas Bellinger " 0 or 1\n", random_datain_pdu_offsets); 192e48354ceSNicholas Bellinger return -EINVAL; 193e48354ceSNicholas Bellinger } 194e48354ceSNicholas Bellinger 195e48354ceSNicholas Bellinger a->random_datain_pdu_offsets = random_datain_pdu_offsets; 196e48354ceSNicholas Bellinger pr_debug("Set Random DataIN PDU Offsets to %u for" 197e48354ceSNicholas Bellinger " Initiator Node %s\n", a->random_datain_pdu_offsets, 198e48354ceSNicholas Bellinger iscsit_na_get_initiatorname(acl)); 199e48354ceSNicholas Bellinger 200e48354ceSNicholas Bellinger return 0; 201e48354ceSNicholas Bellinger } 202e48354ceSNicholas Bellinger 203f760903aSDan Carpenter int iscsit_na_random_datain_seq_offsets( 204e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 205e48354ceSNicholas Bellinger u32 random_datain_seq_offsets) 206e48354ceSNicholas Bellinger { 207e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 208e48354ceSNicholas Bellinger 209e48354ceSNicholas Bellinger if (random_datain_seq_offsets != 0 && random_datain_seq_offsets != 1) { 210e48354ceSNicholas Bellinger pr_err("Requested Random DataIN Sequence Offsets: %u" 211e48354ceSNicholas Bellinger " not 0 or 1\n", random_datain_seq_offsets); 212e48354ceSNicholas Bellinger return -EINVAL; 213e48354ceSNicholas Bellinger } 214e48354ceSNicholas Bellinger 215e48354ceSNicholas Bellinger a->random_datain_seq_offsets = random_datain_seq_offsets; 216e48354ceSNicholas Bellinger pr_debug("Set Random DataIN Sequence Offsets to %u for" 217e48354ceSNicholas Bellinger " Initiator Node %s\n", a->random_datain_seq_offsets, 218e48354ceSNicholas Bellinger iscsit_na_get_initiatorname(acl)); 219e48354ceSNicholas Bellinger 220e48354ceSNicholas Bellinger return 0; 221e48354ceSNicholas Bellinger } 222e48354ceSNicholas Bellinger 223f760903aSDan Carpenter int iscsit_na_random_r2t_offsets( 224e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 225e48354ceSNicholas Bellinger u32 random_r2t_offsets) 226e48354ceSNicholas Bellinger { 227e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 228e48354ceSNicholas Bellinger 229e48354ceSNicholas Bellinger if (random_r2t_offsets != 0 && random_r2t_offsets != 1) { 230e48354ceSNicholas Bellinger pr_err("Requested Random R2T Offsets: %u not" 231e48354ceSNicholas Bellinger " 0 or 1\n", random_r2t_offsets); 232e48354ceSNicholas Bellinger return -EINVAL; 233e48354ceSNicholas Bellinger } 234e48354ceSNicholas Bellinger 235e48354ceSNicholas Bellinger a->random_r2t_offsets = random_r2t_offsets; 236e48354ceSNicholas Bellinger pr_debug("Set Random R2T Offsets to %u for" 237e48354ceSNicholas Bellinger " Initiator Node %s\n", a->random_r2t_offsets, 238e48354ceSNicholas Bellinger iscsit_na_get_initiatorname(acl)); 239e48354ceSNicholas Bellinger 240e48354ceSNicholas Bellinger return 0; 241e48354ceSNicholas Bellinger } 242e48354ceSNicholas Bellinger 243f760903aSDan Carpenter int iscsit_na_default_erl( 244e48354ceSNicholas Bellinger struct iscsi_node_acl *acl, 245e48354ceSNicholas Bellinger u32 default_erl) 246e48354ceSNicholas Bellinger { 247e48354ceSNicholas Bellinger struct iscsi_node_attrib *a = &acl->node_attrib; 248e48354ceSNicholas Bellinger 249e48354ceSNicholas Bellinger if (default_erl != 0 && default_erl != 1 && default_erl != 2) { 250e48354ceSNicholas Bellinger pr_err("Requested default ERL: %u not 0, 1, or 2\n", 251e48354ceSNicholas Bellinger default_erl); 252e48354ceSNicholas Bellinger return -EINVAL; 253e48354ceSNicholas Bellinger } 254e48354ceSNicholas Bellinger 255e48354ceSNicholas Bellinger a->default_erl = default_erl; 256e48354ceSNicholas Bellinger pr_debug("Set use ERL0 flag to %u for Initiator" 257e48354ceSNicholas Bellinger " Node %s\n", a->default_erl, 258e48354ceSNicholas Bellinger iscsit_na_get_initiatorname(acl)); 259e48354ceSNicholas Bellinger 260e48354ceSNicholas Bellinger return 0; 261e48354ceSNicholas Bellinger } 262