| // SPDX-License-Identifier: GPL-2.0-or-later |
| /******************************************************************************* |
| * This file contains the main functions related to Initiator Node Attributes. |
| * |
| * (c) Copyright 2007-2013 Datera, Inc. |
| * |
| * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> |
| * |
| ******************************************************************************/ |
| |
| #include <target/target_core_base.h> |
| |
| #include <target/iscsi/iscsi_target_core.h> |
| #include "iscsi_target_device.h" |
| #include "iscsi_target_tpg.h" |
| #include "iscsi_target_util.h" |
| #include "iscsi_target_nodeattrib.h" |
| |
| static inline char *iscsit_na_get_initiatorname( |
| struct iscsi_node_acl *nacl) |
| { |
| struct se_node_acl *se_nacl = &nacl->se_node_acl; |
| |
| return &se_nacl->initiatorname[0]; |
| } |
| |
| void iscsit_set_default_node_attribues( |
| struct iscsi_node_acl *acl, |
| struct iscsi_portal_group *tpg) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| a->dataout_timeout = NA_DATAOUT_TIMEOUT; |
| a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES; |
| a->nopin_timeout = NA_NOPIN_TIMEOUT; |
| a->nopin_response_timeout = NA_NOPIN_RESPONSE_TIMEOUT; |
| a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS; |
| a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS; |
| a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS; |
| a->default_erl = tpg->tpg_attrib.default_erl; |
| } |
| |
| int iscsit_na_dataout_timeout( |
| struct iscsi_node_acl *acl, |
| u32 dataout_timeout) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| if (dataout_timeout > NA_DATAOUT_TIMEOUT_MAX) { |
| pr_err("Requested DataOut Timeout %u larger than" |
| " maximum %u\n", dataout_timeout, |
| NA_DATAOUT_TIMEOUT_MAX); |
| return -EINVAL; |
| } else if (dataout_timeout < NA_DATAOUT_TIMEOUT_MIX) { |
| pr_err("Requested DataOut Timeout %u smaller than" |
| " minimum %u\n", dataout_timeout, |
| NA_DATAOUT_TIMEOUT_MIX); |
| return -EINVAL; |
| } |
| |
| a->dataout_timeout = dataout_timeout; |
| pr_debug("Set DataOut Timeout to %u for Initiator Node" |
| " %s\n", a->dataout_timeout, iscsit_na_get_initiatorname(acl)); |
| |
| return 0; |
| } |
| |
| int iscsit_na_dataout_timeout_retries( |
| struct iscsi_node_acl *acl, |
| u32 dataout_timeout_retries) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| if (dataout_timeout_retries > NA_DATAOUT_TIMEOUT_RETRIES_MAX) { |
| pr_err("Requested DataOut Timeout Retries %u larger" |
| " than maximum %u", dataout_timeout_retries, |
| NA_DATAOUT_TIMEOUT_RETRIES_MAX); |
| return -EINVAL; |
| } else if (dataout_timeout_retries < NA_DATAOUT_TIMEOUT_RETRIES_MIN) { |
| pr_err("Requested DataOut Timeout Retries %u smaller" |
| " than minimum %u", dataout_timeout_retries, |
| NA_DATAOUT_TIMEOUT_RETRIES_MIN); |
| return -EINVAL; |
| } |
| |
| a->dataout_timeout_retries = dataout_timeout_retries; |
| pr_debug("Set DataOut Timeout Retries to %u for" |
| " Initiator Node %s\n", a->dataout_timeout_retries, |
| iscsit_na_get_initiatorname(acl)); |
| |
| return 0; |
| } |
| |
| int iscsit_na_nopin_timeout( |
| struct iscsi_node_acl *acl, |
| u32 nopin_timeout) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| struct iscsit_session *sess; |
| struct iscsit_conn *conn; |
| struct se_node_acl *se_nacl = &a->nacl->se_node_acl; |
| struct se_session *se_sess; |
| u32 orig_nopin_timeout = a->nopin_timeout; |
| |
| if (nopin_timeout > NA_NOPIN_TIMEOUT_MAX) { |
| pr_err("Requested NopIn Timeout %u larger than maximum" |
| " %u\n", nopin_timeout, NA_NOPIN_TIMEOUT_MAX); |
| return -EINVAL; |
| } else if ((nopin_timeout < NA_NOPIN_TIMEOUT_MIN) && |
| (nopin_timeout != 0)) { |
| pr_err("Requested NopIn Timeout %u smaller than" |
| " minimum %u and not 0\n", nopin_timeout, |
| NA_NOPIN_TIMEOUT_MIN); |
| return -EINVAL; |
| } |
| |
| a->nopin_timeout = nopin_timeout; |
| pr_debug("Set NopIn Timeout to %u for Initiator" |
| " Node %s\n", a->nopin_timeout, |
| iscsit_na_get_initiatorname(acl)); |
| /* |
| * Reenable disabled nopin_timeout timer for all iSCSI connections. |
| */ |
| if (!orig_nopin_timeout) { |
| spin_lock_bh(&se_nacl->nacl_sess_lock); |
| se_sess = se_nacl->nacl_sess; |
| if (se_sess) { |
| sess = se_sess->fabric_sess_ptr; |
| |
| spin_lock(&sess->conn_lock); |
| list_for_each_entry(conn, &sess->sess_conn_list, |
| conn_list) { |
| if (conn->conn_state != |
| TARG_CONN_STATE_LOGGED_IN) |
| continue; |
| |
| spin_lock(&conn->nopin_timer_lock); |
| __iscsit_start_nopin_timer(conn); |
| spin_unlock(&conn->nopin_timer_lock); |
| } |
| spin_unlock(&sess->conn_lock); |
| } |
| spin_unlock_bh(&se_nacl->nacl_sess_lock); |
| } |
| |
| return 0; |
| } |
| |
| int iscsit_na_nopin_response_timeout( |
| struct iscsi_node_acl *acl, |
| u32 nopin_response_timeout) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| if (nopin_response_timeout > NA_NOPIN_RESPONSE_TIMEOUT_MAX) { |
| pr_err("Requested NopIn Response Timeout %u larger" |
| " than maximum %u\n", nopin_response_timeout, |
| NA_NOPIN_RESPONSE_TIMEOUT_MAX); |
| return -EINVAL; |
| } else if (nopin_response_timeout < NA_NOPIN_RESPONSE_TIMEOUT_MIN) { |
| pr_err("Requested NopIn Response Timeout %u smaller" |
| " than minimum %u\n", nopin_response_timeout, |
| NA_NOPIN_RESPONSE_TIMEOUT_MIN); |
| return -EINVAL; |
| } |
| |
| a->nopin_response_timeout = nopin_response_timeout; |
| pr_debug("Set NopIn Response Timeout to %u for" |
| " Initiator Node %s\n", a->nopin_timeout, |
| iscsit_na_get_initiatorname(acl)); |
| |
| return 0; |
| } |
| |
| int iscsit_na_random_datain_pdu_offsets( |
| struct iscsi_node_acl *acl, |
| u32 random_datain_pdu_offsets) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| if (random_datain_pdu_offsets != 0 && random_datain_pdu_offsets != 1) { |
| pr_err("Requested Random DataIN PDU Offsets: %u not" |
| " 0 or 1\n", random_datain_pdu_offsets); |
| return -EINVAL; |
| } |
| |
| a->random_datain_pdu_offsets = random_datain_pdu_offsets; |
| pr_debug("Set Random DataIN PDU Offsets to %u for" |
| " Initiator Node %s\n", a->random_datain_pdu_offsets, |
| iscsit_na_get_initiatorname(acl)); |
| |
| return 0; |
| } |
| |
| int iscsit_na_random_datain_seq_offsets( |
| struct iscsi_node_acl *acl, |
| u32 random_datain_seq_offsets) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| if (random_datain_seq_offsets != 0 && random_datain_seq_offsets != 1) { |
| pr_err("Requested Random DataIN Sequence Offsets: %u" |
| " not 0 or 1\n", random_datain_seq_offsets); |
| return -EINVAL; |
| } |
| |
| a->random_datain_seq_offsets = random_datain_seq_offsets; |
| pr_debug("Set Random DataIN Sequence Offsets to %u for" |
| " Initiator Node %s\n", a->random_datain_seq_offsets, |
| iscsit_na_get_initiatorname(acl)); |
| |
| return 0; |
| } |
| |
| int iscsit_na_random_r2t_offsets( |
| struct iscsi_node_acl *acl, |
| u32 random_r2t_offsets) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| if (random_r2t_offsets != 0 && random_r2t_offsets != 1) { |
| pr_err("Requested Random R2T Offsets: %u not" |
| " 0 or 1\n", random_r2t_offsets); |
| return -EINVAL; |
| } |
| |
| a->random_r2t_offsets = random_r2t_offsets; |
| pr_debug("Set Random R2T Offsets to %u for" |
| " Initiator Node %s\n", a->random_r2t_offsets, |
| iscsit_na_get_initiatorname(acl)); |
| |
| return 0; |
| } |
| |
| int iscsit_na_default_erl( |
| struct iscsi_node_acl *acl, |
| u32 default_erl) |
| { |
| struct iscsi_node_attrib *a = &acl->node_attrib; |
| |
| if (default_erl != 0 && default_erl != 1 && default_erl != 2) { |
| pr_err("Requested default ERL: %u not 0, 1, or 2\n", |
| default_erl); |
| return -EINVAL; |
| } |
| |
| a->default_erl = default_erl; |
| pr_debug("Set use ERL0 flag to %u for Initiator" |
| " Node %s\n", a->default_erl, |
| iscsit_na_get_initiatorname(acl)); |
| |
| return 0; |
| } |
