1
#ifndef ISCSI_TARGET_CORE_H
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#define ISCSI_TARGET_CORE_H
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#include <linux/configfs.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/iscsi_proto.h>
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#include <target/target_core_base.h>
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#define ISCSIT_VERSION "v4.1.0-rc1"
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#define ISCSI_MAX_DATASN_MISSING_COUNT 16
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#define ISCSI_TX_THREAD_TCP_TIMEOUT 2
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#define ISCSI_RX_THREAD_TCP_TIMEOUT 2
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#define SECONDS_FOR_ASYNC_LOGOUT 10
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#define SECONDS_FOR_ASYNC_TEXT 10
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#define SECONDS_FOR_LOGOUT_COMP 15
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#define WHITE_SPACE " \t\v\f\n\r"
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/* struct iscsi_node_attrib sanity values */
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#define NA_DATAOUT_TIMEOUT 3
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#define NA_DATAOUT_TIMEOUT_MAX 60
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#define NA_DATAOUT_TIMEOUT_MIX 2
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#define NA_DATAOUT_TIMEOUT_RETRIES 5
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#define NA_DATAOUT_TIMEOUT_RETRIES_MAX 15
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#define NA_DATAOUT_TIMEOUT_RETRIES_MIN 1
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#define NA_NOPIN_TIMEOUT 5
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#define NA_NOPIN_TIMEOUT_MAX 60
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#define NA_NOPIN_TIMEOUT_MIN 3
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#define NA_NOPIN_RESPONSE_TIMEOUT 5
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#define NA_NOPIN_RESPONSE_TIMEOUT_MAX 60
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#define NA_NOPIN_RESPONSE_TIMEOUT_MIN 3
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#define NA_RANDOM_DATAIN_PDU_OFFSETS 0
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#define NA_RANDOM_DATAIN_SEQ_OFFSETS 0
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#define NA_RANDOM_R2T_OFFSETS 0
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#define NA_DEFAULT_ERL 0
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#define NA_DEFAULT_ERL_MAX 2
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#define NA_DEFAULT_ERL_MIN 0
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/* struct iscsi_tpg_attrib sanity values */
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#define TA_AUTHENTICATION 1
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#define TA_LOGIN_TIMEOUT 15
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#define TA_LOGIN_TIMEOUT_MAX 30
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#define TA_LOGIN_TIMEOUT_MIN 5
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#define TA_NETIF_TIMEOUT 2
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#define TA_NETIF_TIMEOUT_MAX 15
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#define TA_NETIF_TIMEOUT_MIN 2
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#define TA_GENERATE_NODE_ACLS 0
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#define TA_DEFAULT_CMDSN_DEPTH 16
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#define TA_DEFAULT_CMDSN_DEPTH_MAX 512
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#define TA_DEFAULT_CMDSN_DEPTH_MIN 1
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#define TA_CACHE_DYNAMIC_ACLS 0
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/* Enabled by default in demo mode (generic_node_acls=1) */
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#define TA_DEMO_MODE_WRITE_PROTECT 1
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/* Disabled by default in production mode w/ explict ACLs */
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#define TA_PROD_MODE_WRITE_PROTECT 0
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#define TA_CACHE_CORE_NPS 0
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#define ISCSI_IOV_DATA_BUFFER 5
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enum tpg_np_network_transport_table {
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/* RFC-3720 7.1.4 Standard Connection State Diagram for a Target */
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enum target_conn_state_table {
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TARG_CONN_STATE_FREE = 0x1,
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TARG_CONN_STATE_XPT_UP = 0x3,
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TARG_CONN_STATE_IN_LOGIN = 0x4,
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TARG_CONN_STATE_LOGGED_IN = 0x5,
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TARG_CONN_STATE_IN_LOGOUT = 0x6,
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TARG_CONN_STATE_LOGOUT_REQUESTED = 0x7,
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TARG_CONN_STATE_CLEANUP_WAIT = 0x8,
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/* RFC-3720 7.3.2 Session State Diagram for a Target */
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enum target_sess_state_table {
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TARG_SESS_STATE_FREE = 0x1,
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TARG_SESS_STATE_ACTIVE = 0x2,
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TARG_SESS_STATE_LOGGED_IN = 0x3,
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TARG_SESS_STATE_FAILED = 0x4,
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TARG_SESS_STATE_IN_CONTINUE = 0x5,
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/* struct iscsi_data_count->type */
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enum data_count_type {
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/* struct iscsi_datain_req->dr_complete */
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enum datain_req_comp_table {
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DATAIN_COMPLETE_NORMAL = 1,
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DATAIN_COMPLETE_WITHIN_COMMAND_RECOVERY = 2,
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DATAIN_COMPLETE_CONNECTION_RECOVERY = 3,
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/* struct iscsi_datain_req->recovery */
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enum datain_req_rec_table {
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DATAIN_WITHIN_COMMAND_RECOVERY = 1,
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DATAIN_CONNECTION_RECOVERY = 2,
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/* struct iscsi_portal_group->state */
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enum tpg_state_table {
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TPG_STATE_ACTIVE = 1,
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TPG_STATE_INACTIVE = 2,
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TPG_STATE_COLD_RESET = 3,
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/* struct iscsi_tiqn->tiqn_state */
120
enum tiqn_state_table {
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TIQN_STATE_ACTIVE = 1,
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TIQN_STATE_SHUTDOWN = 2,
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/* struct iscsi_cmd->cmd_flags */
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enum cmd_flags_table {
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ICF_GOT_LAST_DATAOUT = 0x00000001,
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ICF_GOT_DATACK_SNACK = 0x00000002,
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ICF_NON_IMMEDIATE_UNSOLICITED_DATA = 0x00000004,
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ICF_SENT_LAST_R2T = 0x00000008,
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ICF_WITHIN_COMMAND_RECOVERY = 0x00000010,
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ICF_CONTIG_MEMORY = 0x00000020,
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ICF_ATTACHED_TO_RQUEUE = 0x00000040,
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ICF_OOO_CMDSN = 0x00000080,
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ICF_REJECT_FAIL_CONN = 0x00000100,
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/* struct iscsi_cmd->i_state */
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enum cmd_i_state_table {
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ISTATE_DEFERRED_CMD = 2,
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ISTATE_UNSOLICITED_DATA = 3,
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ISTATE_RECEIVE_DATAOUT = 4,
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ISTATE_RECEIVE_DATAOUT_RECOVERY = 5,
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ISTATE_RECEIVED_LAST_DATAOUT = 6,
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ISTATE_WITHIN_DATAOUT_RECOVERY = 7,
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ISTATE_IN_CONNECTION_RECOVERY = 8,
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ISTATE_RECEIVED_TASKMGT = 9,
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ISTATE_SEND_ASYNCMSG = 10,
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ISTATE_SENT_ASYNCMSG = 11,
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ISTATE_SEND_DATAIN = 12,
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ISTATE_SEND_LAST_DATAIN = 13,
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ISTATE_SENT_LAST_DATAIN = 14,
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ISTATE_SEND_LOGOUTRSP = 15,
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ISTATE_SENT_LOGOUTRSP = 16,
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ISTATE_SEND_NOPIN = 17,
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ISTATE_SENT_NOPIN = 18,
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ISTATE_SEND_REJECT = 19,
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ISTATE_SENT_REJECT = 20,
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ISTATE_SEND_R2T = 21,
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ISTATE_SENT_R2T = 22,
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ISTATE_SEND_R2T_RECOVERY = 23,
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ISTATE_SENT_R2T_RECOVERY = 24,
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ISTATE_SEND_LAST_R2T = 25,
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ISTATE_SENT_LAST_R2T = 26,
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ISTATE_SEND_LAST_R2T_RECOVERY = 27,
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ISTATE_SENT_LAST_R2T_RECOVERY = 28,
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ISTATE_SEND_STATUS = 29,
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ISTATE_SEND_STATUS_BROKEN_PC = 30,
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ISTATE_SENT_STATUS = 31,
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ISTATE_SEND_STATUS_RECOVERY = 32,
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ISTATE_SENT_STATUS_RECOVERY = 33,
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ISTATE_SEND_TASKMGTRSP = 34,
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ISTATE_SENT_TASKMGTRSP = 35,
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ISTATE_SEND_TEXTRSP = 36,
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ISTATE_SENT_TEXTRSP = 37,
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ISTATE_SEND_NOPIN_WANT_RESPONSE = 38,
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ISTATE_SENT_NOPIN_WANT_RESPONSE = 39,
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ISTATE_SEND_NOPIN_NO_RESPONSE = 40,
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/* Used for iscsi_recover_cmdsn() return values */
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enum recover_cmdsn_ret_table {
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CMDSN_ERROR_CANNOT_RECOVER = -1,
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CMDSN_NORMAL_OPERATION = 0,
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CMDSN_LOWER_THAN_EXP = 1,
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CMDSN_HIGHER_THAN_EXP = 2,
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/* Used for iscsi_handle_immediate_data() return values */
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enum immedate_data_ret_table {
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IMMEDIATE_DATA_CANNOT_RECOVER = -1,
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IMMEDIATE_DATA_NORMAL_OPERATION = 0,
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IMMEDIATE_DATA_ERL1_CRC_FAILURE = 1,
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/* Used for iscsi_decide_dataout_action() return values */
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enum dataout_action_ret_table {
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DATAOUT_CANNOT_RECOVER = -1,
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DATAOUT_SEND_R2T = 1,
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DATAOUT_SEND_TO_TRANSPORT = 2,
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DATAOUT_WITHIN_COMMAND_RECOVERY = 3,
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/* Used for struct iscsi_node_auth->naf_flags */
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enum naf_flags_table {
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NAF_USERID_SET = 0x01,
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NAF_PASSWORD_SET = 0x02,
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NAF_USERID_IN_SET = 0x04,
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NAF_PASSWORD_IN_SET = 0x08,
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/* Used by various struct timer_list to manage iSCSI specific state */
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enum iscsi_timer_flags_table {
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ISCSI_TF_RUNNING = 0x01,
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ISCSI_TF_STOP = 0x02,
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ISCSI_TF_EXPIRED = 0x04,
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/* Used for struct iscsi_np->np_flags */
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enum np_flags_table {
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NPF_IP_NETWORK = 0x00,
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NPF_SCTP_STRUCT_FILE = 0x01 /* Bugfix */
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/* Used for struct iscsi_np->np_thread_state */
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enum np_thread_state_table {
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ISCSI_NP_THREAD_ACTIVE = 1,
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ISCSI_NP_THREAD_INACTIVE = 2,
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ISCSI_NP_THREAD_RESET = 3,
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ISCSI_NP_THREAD_SHUTDOWN = 4,
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ISCSI_NP_THREAD_EXIT = 5,
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struct iscsi_conn_ops {
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u8 HeaderDigest; /* [0,1] == [None,CRC32C] */
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u8 DataDigest; /* [0,1] == [None,CRC32C] */
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u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
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u8 OFMarker; /* [0,1] == [No,Yes] */
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u8 IFMarker; /* [0,1] == [No,Yes] */
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u32 OFMarkInt; /* [1..65535] */
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u32 IFMarkInt; /* [1..65535] */
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struct iscsi_sess_ops {
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char InitiatorName[224];
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char InitiatorAlias[256];
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char TargetName[224];
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char TargetAlias[256];
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char TargetAddress[256];
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u16 TargetPortalGroupTag; /* [0..65535] */
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u16 MaxConnections; /* [1..65535] */
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u8 InitialR2T; /* [0,1] == [No,Yes] */
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u8 ImmediateData; /* [0,1] == [No,Yes] */
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u32 MaxBurstLength; /* [512..2**24-1] */
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u32 FirstBurstLength; /* [512..2**24-1] */
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u16 DefaultTime2Wait; /* [0..3600] */
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u16 DefaultTime2Retain; /* [0..3600] */
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u16 MaxOutstandingR2T; /* [1..65535] */
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u8 DataPDUInOrder; /* [0,1] == [No,Yes] */
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u8 DataSequenceInOrder; /* [0,1] == [No,Yes] */
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u8 ErrorRecoveryLevel; /* [0..2] */
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u8 SessionType; /* [0,1] == [Normal,Discovery]*/
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struct iscsi_queue_req {
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struct iscsi_cmd *cmd;
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struct list_head qr_list;
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struct iscsi_data_count {
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int sync_and_steering;
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enum data_count_type type;
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struct iscsi_param_list {
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struct list_head param_list;
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struct list_head extra_response_list;
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struct iscsi_datain_req {
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enum datain_req_comp_table dr_complete;
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int generate_recovery_values;
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enum datain_req_rec_table recovery;
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struct list_head dr_list;
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} ____cacheline_aligned;
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struct iscsi_ooo_cmdsn {
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struct iscsi_cmd *cmd;
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struct list_head ooo_list;
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} ____cacheline_aligned;
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struct iscsi_datain {
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} ____cacheline_aligned;
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struct list_head r2t_list;
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} ____cacheline_aligned;
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enum iscsi_timer_flags_table dataout_timer_flags;
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/* DataOUT timeout retries */
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u8 dataout_timeout_retries;
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/* Within command recovery count */
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u8 error_recovery_count;
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/* iSCSI dependent state for out or order CmdSNs */
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enum cmd_i_state_table deferred_i_state;
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/* iSCSI dependent state */
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enum cmd_i_state_table i_state;
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/* Command is an immediate command (ISCSI_OP_IMMEDIATE set) */
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/* Immediate data present */
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/* iSCSI Response Code */
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/* Logout reason when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
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/* Logout response code when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
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/* MaxCmdSN has been incremented */
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/* Immediate Unsolicited Dataout */
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/* CID contained in logout PDU when opcode == ISCSI_INIT_LOGOUT_CMND */
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enum cmd_flags_table cmd_flags;
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/* Initiator Task Tag assigned from Initiator */
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/* Target Transfer Tag assigned from Target */
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/* CmdSN assigned from Initiator */
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/* ExpStatSN assigned from Initiator */
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/* StatSN assigned to this ITT */
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/* Last DataSN acknowledged via DataAck SNACK */
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/* Used for echoing NOPOUT ping data */
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/* Used to store DataDigest */
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/* Total size in bytes associated with command */
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/* Counter for MaxOutstandingR2T */
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u32 outstanding_r2ts;
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/* Next R2T Offset when DataSequenceInOrder=Yes */
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/* Iovec current and orig count for iscsi_cmd->iov_data */
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u32 orig_iov_data_count;
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/* Number of miscellaneous iovecs used for IP stack calls */
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/* Number of struct iscsi_pdu in struct iscsi_cmd->pdu_list */
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/* Next struct iscsi_pdu to send in struct iscsi_cmd->pdu_list */
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/* Current struct iscsi_pdu in struct iscsi_cmd->pdu_list */
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/* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
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/* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
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/* Current struct iscsi_seq in struct iscsi_cmd->seq_list */
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/* Lowest offset in current DataOUT sequence */
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u32 seq_start_offset;
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/* Highest offset in current DataOUT sequence */
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/* Total size in bytes received so far of READ data */
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/* Total size in bytes received so far of WRITE data */
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/* Counter for FirstBurstLength key */
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/* Counter for MaxBurstLength key */
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/* Transfer size used for IP stack calls */
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/* Buffer used for various purposes */
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/* See include/linux/dma-mapping.h */
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enum dma_data_direction data_direction;
426
/* iSCSI PDU Header + CRC */
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unsigned char pdu[ISCSI_HDR_LEN + ISCSI_CRC_LEN];
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/* Number of times struct iscsi_cmd is present in immediate queue */
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atomic_t immed_queue_count;
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atomic_t response_queue_count;
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spinlock_t datain_lock;
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spinlock_t dataout_timeout_lock;
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/* spinlock for protecting struct iscsi_cmd->i_state */
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spinlock_t istate_lock;
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/* spinlock for adding within command recovery entries */
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spinlock_t error_lock;
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/* spinlock for adding R2Ts */
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struct list_head datain_list;
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struct list_head cmd_r2t_list;
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struct completion reject_comp;
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/* Timer for DataOUT */
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struct timer_list dataout_timer;
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/* Iovecs for SCSI data payload RX/TX w/ kernel level sockets */
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struct kvec *iov_data;
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/* Iovecs for miscellaneous purposes */
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#define ISCSI_MISC_IOVECS 5
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struct kvec iov_misc[ISCSI_MISC_IOVECS];
451
/* Array of struct iscsi_pdu used for DataPDUInOrder=No */
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struct iscsi_pdu *pdu_list;
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/* Current struct iscsi_pdu used for DataPDUInOrder=No */
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struct iscsi_pdu *pdu_ptr;
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/* Array of struct iscsi_seq used for DataSequenceInOrder=No */
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struct iscsi_seq *seq_list;
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/* Current struct iscsi_seq used for DataSequenceInOrder=No */
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struct iscsi_seq *seq_ptr;
459
/* TMR Request when iscsi_opcode == ISCSI_OP_SCSI_TMFUNC */
460
struct iscsi_tmr_req *tmr_req;
461
/* Connection this command is alligient to */
462
struct iscsi_conn *conn;
463
/* Pointer to connection recovery entry */
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struct iscsi_conn_recovery *cr;
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/* Session the command is part of, used for connection recovery */
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struct iscsi_session *sess;
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/* list_head for connection list */
468
struct list_head i_list;
469
/* The TCM I/O descriptor that is accessed via container_of() */
470
struct se_cmd se_cmd;
471
/* Sense buffer that will be mapped into outgoing status */
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#define ISCSI_SENSE_BUFFER_LEN (TRANSPORT_SENSE_BUFFER + 2)
473
unsigned char sense_buffer[ISCSI_SENSE_BUFFER_LEN];
475
struct scatterlist *t_mem_sg;
481
struct scatterlist *first_data_sg;
482
u32 first_data_sg_off;
485
} ____cacheline_aligned;
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struct iscsi_tmr_req {
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bool task_reassign:1;
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struct iscsi_conn_recovery *conn_recovery;
492
struct se_tmr_req *se_tmr_req;
496
/* Authentication Successful for this connection */
498
/* State connection is currently in */
500
u8 conn_logout_reason;
501
u8 network_transport;
502
enum iscsi_timer_flags_table nopin_timer_flags;
503
enum iscsi_timer_flags_table nopin_response_timer_flags;
504
u8 tx_immediate_queue;
505
u8 tx_response_queue;
506
/* Used to know what thread encountered a transport failure */
508
/* connection id assigned by the Initiator */
510
/* Remote TCP Port */
514
#define CONNFLAG_SCTP_STRUCT_FILE 0x01
516
/* Used for iscsi_tx_login_rsp() */
519
/* Per connection status sequence number */
521
/* IFMarkInt's Current Value */
523
/* OFMarkInt's Current Value */
525
/* Used for calculating OFMarker offset to next PDU */
526
u32 of_marker_offset;
527
/* Complete Bad PDU for sending reject */
528
unsigned char bad_hdr[ISCSI_HDR_LEN];
529
#define IPV6_ADDRESS_SPACE 48
530
unsigned char login_ip[IPV6_ADDRESS_SPACE];
531
int conn_usage_count;
532
int conn_waiting_on_uc;
533
atomic_t check_immediate_queue;
534
atomic_t conn_logout_remove;
535
atomic_t connection_exit;
536
atomic_t connection_recovery;
537
atomic_t connection_reinstatement;
538
atomic_t connection_wait;
539
atomic_t connection_wait_rcfr;
540
atomic_t sleep_on_conn_wait_comp;
541
atomic_t transport_failed;
542
struct completion conn_post_wait_comp;
543
struct completion conn_wait_comp;
544
struct completion conn_wait_rcfr_comp;
545
struct completion conn_waiting_on_uc_comp;
546
struct completion conn_logout_comp;
547
struct completion tx_half_close_comp;
548
struct completion rx_half_close_comp;
549
/* socket used by this connection */
551
struct timer_list nopin_timer;
552
struct timer_list nopin_response_timer;
553
struct timer_list transport_timer;
554
/* Spinlock used for add/deleting cmd's from conn_cmd_list */
556
spinlock_t conn_usage_lock;
557
spinlock_t immed_queue_lock;
558
spinlock_t nopin_timer_lock;
559
spinlock_t response_queue_lock;
560
spinlock_t state_lock;
561
/* libcrypto RX and TX contexts for crc32c */
562
struct hash_desc conn_rx_hash;
563
struct hash_desc conn_tx_hash;
564
/* Used for scheduling TX and RX connection kthreads */
565
cpumask_var_t conn_cpumask;
566
int conn_rx_reset_cpumask:1;
567
int conn_tx_reset_cpumask:1;
568
/* list_head of struct iscsi_cmd for this connection */
569
struct list_head conn_cmd_list;
570
struct list_head immed_queue_list;
571
struct list_head response_queue_list;
572
struct iscsi_conn_ops *conn_ops;
573
struct iscsi_param_list *param_list;
574
/* Used for per connection auth state machine */
576
struct iscsi_login_thread_s *login_thread;
577
struct iscsi_portal_group *tpg;
578
/* Pointer to parent session */
579
struct iscsi_session *sess;
580
/* Pointer to thread_set in use for this conn's threads */
581
struct iscsi_thread_set *thread_set;
582
/* list_head for session connection list */
583
struct list_head conn_list;
584
} ____cacheline_aligned;
586
struct iscsi_conn_recovery {
589
u32 maxrecvdatasegmentlength;
590
int ready_for_reallegiance;
591
struct list_head conn_recovery_cmd_list;
592
spinlock_t conn_recovery_cmd_lock;
593
struct timer_list time2retain_timer;
594
struct iscsi_session *sess;
595
struct list_head cr_list;
596
} ____cacheline_aligned;
598
struct iscsi_session {
601
enum iscsi_timer_flags_table time2retain_timer_flags;
604
u16 conn_recovery_count;
606
/* state session is currently in */
608
/* session wide counter: initiator assigned task tag */
610
/* session wide counter: target assigned task tag */
614
/* protects cmdsn values */
615
struct mutex cmdsn_mutex;
616
/* session wide counter: expected command sequence number */
618
/* session wide counter: maximum allowed command sequence number */
620
struct list_head sess_ooo_cmdsn_list;
622
/* LIO specific session ID */
625
/* unique within the target */
627
/* Used for session reference counting */
628
int session_usage_count;
629
int session_waiting_on_uc;
634
u32 conn_digest_errors;
635
u32 conn_timeout_errors;
637
spinlock_t session_stats_lock;
638
/* Number of active connections */
640
atomic_t session_continuation;
641
atomic_t session_fall_back_to_erl0;
642
atomic_t session_logout;
643
atomic_t session_reinstatement;
644
atomic_t session_stop_active;
645
atomic_t sleep_on_sess_wait_comp;
646
atomic_t transport_wait_cmds;
647
/* connection list */
648
struct list_head sess_conn_list;
649
struct list_head cr_active_list;
650
struct list_head cr_inactive_list;
651
spinlock_t conn_lock;
652
spinlock_t cr_a_lock;
653
spinlock_t cr_i_lock;
654
spinlock_t session_usage_lock;
656
struct completion async_msg_comp;
657
struct completion reinstatement_comp;
658
struct completion session_wait_comp;
659
struct completion session_waiting_on_uc_comp;
660
struct timer_list time2retain_timer;
661
struct iscsi_sess_ops *sess_ops;
662
struct se_session *se_sess;
663
struct iscsi_portal_group *tpg;
664
} ____cacheline_aligned;
668
u8 checked_for_existing;
670
u8 leading_connection;
677
u32 initial_exp_statsn;
685
} ____cacheline_aligned;
687
struct iscsi_node_attrib {
689
u32 dataout_timeout_retries;
692
u32 nopin_response_timeout;
693
u32 random_datain_pdu_offsets;
694
u32 random_datain_seq_offsets;
695
u32 random_r2t_offsets;
698
struct iscsi_node_acl *nacl;
701
struct se_dev_entry_s;
703
struct iscsi_node_auth {
704
enum naf_flags_table naf_flags;
705
int authenticate_target;
706
/* Used for iscsit_global->discovery_auth,
707
* set to zero (auth disabled) by default */
708
int enforce_discovery_auth;
709
#define MAX_USER_LEN 256
710
#define MAX_PASS_LEN 256
711
char userid[MAX_USER_LEN];
712
char password[MAX_PASS_LEN];
713
char userid_mutual[MAX_USER_LEN];
714
char password_mutual[MAX_PASS_LEN];
717
#include "iscsi_target_stat.h"
719
struct iscsi_node_stat_grps {
720
struct config_group iscsi_sess_stats_group;
721
struct config_group iscsi_conn_stats_group;
724
struct iscsi_node_acl {
725
struct iscsi_node_attrib node_attrib;
726
struct iscsi_node_auth node_auth;
727
struct iscsi_node_stat_grps node_stat_grps;
728
struct se_node_acl se_node_acl;
731
#define NODE_STAT_GRPS(nacl) (&(nacl)->node_stat_grps)
733
#define ISCSI_NODE_ATTRIB(t) (&(t)->node_attrib)
734
#define ISCSI_NODE_AUTH(t) (&(t)->node_auth)
736
struct iscsi_tpg_attrib {
740
u32 generate_node_acls;
741
u32 cache_dynamic_acls;
742
u32 default_cmdsn_depth;
743
u32 demo_mode_write_protect;
744
u32 prod_mode_write_protect;
745
struct iscsi_portal_group *tpg;
749
int np_network_transport;
752
enum np_thread_state_table np_thread_state;
753
enum iscsi_timer_flags_table np_login_timer_flags;
755
enum np_flags_table np_flags;
756
unsigned char np_ip[IPV6_ADDRESS_SPACE];
758
spinlock_t np_thread_lock;
759
struct completion np_restart_comp;
760
struct socket *np_socket;
761
struct __kernel_sockaddr_storage np_sockaddr;
762
struct task_struct *np_thread;
763
struct timer_list np_login_timer;
764
struct iscsi_portal_group *np_login_tpg;
765
struct list_head np_list;
766
} ____cacheline_aligned;
768
struct iscsi_tpg_np {
769
struct iscsi_np *tpg_np;
770
struct iscsi_portal_group *tpg;
771
struct iscsi_tpg_np *tpg_np_parent;
772
struct list_head tpg_np_list;
773
struct list_head tpg_np_child_list;
774
struct list_head tpg_np_parent_list;
775
struct se_tpg_np se_tpg_np;
776
spinlock_t tpg_np_parent_lock;
779
struct iscsi_portal_group {
780
unsigned char tpg_chap_id;
782
enum tpg_state_table tpg_state;
783
/* Target Portal Group Tag */
785
/* Id assigned to target sessions */
787
/* Number of active sessions */
789
/* Number of Network Portals available for this TPG */
791
/* Per TPG LIO specific session ID. */
793
/* Spinlock for adding/removing Network Portals */
794
spinlock_t tpg_np_lock;
795
spinlock_t tpg_state_lock;
796
struct se_portal_group tpg_se_tpg;
797
struct mutex tpg_access_lock;
798
struct mutex np_login_lock;
799
struct iscsi_tpg_attrib tpg_attrib;
800
/* Pointer to default list of iSCSI parameters for TPG */
801
struct iscsi_param_list *param_list;
802
struct iscsi_tiqn *tpg_tiqn;
803
struct list_head tpg_gnp_list;
804
struct list_head tpg_list;
805
} ____cacheline_aligned;
807
#define ISCSI_TPG_C(c) ((struct iscsi_portal_group *)(c)->tpg)
808
#define ISCSI_TPG_LUN(c, l) ((iscsi_tpg_list_t *)(c)->tpg->tpg_lun_list_t[l])
809
#define ISCSI_TPG_S(s) ((struct iscsi_portal_group *)(s)->tpg)
810
#define ISCSI_TPG_ATTRIB(t) (&(t)->tpg_attrib)
811
#define SE_TPG(tpg) (&(tpg)->tpg_se_tpg)
813
struct iscsi_wwn_stat_grps {
814
struct config_group iscsi_stat_group;
815
struct config_group iscsi_instance_group;
816
struct config_group iscsi_sess_err_group;
817
struct config_group iscsi_tgt_attr_group;
818
struct config_group iscsi_login_stats_group;
819
struct config_group iscsi_logout_stats_group;
823
#define ISCSI_IQN_LEN 224
824
unsigned char tiqn[ISCSI_IQN_LEN];
825
enum tiqn_state_table tiqn_state;
826
int tiqn_access_count;
827
u32 tiqn_active_tpgs;
829
u32 tiqn_num_tpg_nps;
831
struct list_head tiqn_list;
832
struct list_head tiqn_tpg_list;
833
spinlock_t tiqn_state_lock;
834
spinlock_t tiqn_tpg_lock;
835
struct se_wwn tiqn_wwn;
836
struct iscsi_wwn_stat_grps tiqn_stat_grps;
838
struct iscsi_sess_err_stats sess_err_stats;
839
struct iscsi_login_stats login_stats;
840
struct iscsi_logout_stats logout_stats;
841
} ____cacheline_aligned;
843
#define WWN_STAT_GRPS(tiqn) (&(tiqn)->tiqn_stat_grps)
845
struct iscsit_global {
846
/* In core shutdown */
849
/* Unique identifier used for the authentication daemon */
852
/* Thread Set bitmap count */
854
/* Thread Set bitmap pointer */
855
unsigned long *ts_bitmap;
856
/* Used for iSCSI discovery session authentication */
857
struct iscsi_node_acl discovery_acl;
858
struct iscsi_portal_group *discovery_tpg;
861
#endif /* ISCSI_TARGET_CORE_H */