#include <target/target_core_fabric.h>
#include <target/target_core_configfs.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_tq.h"
#include "iscsi_target_util.h"
#include "iscsi_target.h"
#include "iscsi_target_device.h"
-#include "iscsi_target_stat.h"
+#include <target/iscsi/iscsi_target_stat.h>
#include <target/iscsi/iscsi_transport.h>
#include <linux/err.h>
#include <linux/scatterlist.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_nego.h"
#include "iscsi_target_auth.h"
#include <target/configfs_macros.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_device.h"
#include "iscsi_target_erl0.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
#include "iscsi_target.h"
-#include "iscsi_target_stat.h"
+#include <target/iscsi/iscsi_target_stat.h>
#include "iscsi_target_configfs.h"
struct target_fabric_configfs *lio_target_fabric_configfs;
+++ /dev/null
-#ifndef ISCSI_TARGET_CORE_H
-#define ISCSI_TARGET_CORE_H
-
-#include <linux/in.h>
-#include <linux/configfs.h>
-#include <net/sock.h>
-#include <net/tcp.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/iscsi_proto.h>
-#include <target/target_core_base.h>
-
-#define ISCSIT_VERSION "v4.1.0"
-#define ISCSI_MAX_DATASN_MISSING_COUNT 16
-#define ISCSI_TX_THREAD_TCP_TIMEOUT 2
-#define ISCSI_RX_THREAD_TCP_TIMEOUT 2
-#define SECONDS_FOR_ASYNC_LOGOUT 10
-#define SECONDS_FOR_ASYNC_TEXT 10
-#define SECONDS_FOR_LOGOUT_COMP 15
-#define WHITE_SPACE " \t\v\f\n\r"
-#define ISCSIT_MIN_TAGS 16
-#define ISCSIT_EXTRA_TAGS 8
-#define ISCSIT_TCP_BACKLOG 256
-
-/* struct iscsi_node_attrib sanity values */
-#define NA_DATAOUT_TIMEOUT 3
-#define NA_DATAOUT_TIMEOUT_MAX 60
-#define NA_DATAOUT_TIMEOUT_MIX 2
-#define NA_DATAOUT_TIMEOUT_RETRIES 5
-#define NA_DATAOUT_TIMEOUT_RETRIES_MAX 15
-#define NA_DATAOUT_TIMEOUT_RETRIES_MIN 1
-#define NA_NOPIN_TIMEOUT 15
-#define NA_NOPIN_TIMEOUT_MAX 60
-#define NA_NOPIN_TIMEOUT_MIN 3
-#define NA_NOPIN_RESPONSE_TIMEOUT 30
-#define NA_NOPIN_RESPONSE_TIMEOUT_MAX 60
-#define NA_NOPIN_RESPONSE_TIMEOUT_MIN 3
-#define NA_RANDOM_DATAIN_PDU_OFFSETS 0
-#define NA_RANDOM_DATAIN_SEQ_OFFSETS 0
-#define NA_RANDOM_R2T_OFFSETS 0
-
-/* struct iscsi_tpg_attrib sanity values */
-#define TA_AUTHENTICATION 1
-#define TA_LOGIN_TIMEOUT 15
-#define TA_LOGIN_TIMEOUT_MAX 30
-#define TA_LOGIN_TIMEOUT_MIN 5
-#define TA_NETIF_TIMEOUT 2
-#define TA_NETIF_TIMEOUT_MAX 15
-#define TA_NETIF_TIMEOUT_MIN 2
-#define TA_GENERATE_NODE_ACLS 0
-#define TA_DEFAULT_CMDSN_DEPTH 64
-#define TA_DEFAULT_CMDSN_DEPTH_MAX 512
-#define TA_DEFAULT_CMDSN_DEPTH_MIN 1
-#define TA_CACHE_DYNAMIC_ACLS 0
-/* Enabled by default in demo mode (generic_node_acls=1) */
-#define TA_DEMO_MODE_WRITE_PROTECT 1
-/* Disabled by default in production mode w/ explict ACLs */
-#define TA_PROD_MODE_WRITE_PROTECT 0
-#define TA_DEMO_MODE_DISCOVERY 1
-#define TA_DEFAULT_ERL 0
-#define TA_CACHE_CORE_NPS 0
-/* T10 protection information disabled by default */
-#define TA_DEFAULT_T10_PI 0
-
-#define ISCSI_IOV_DATA_BUFFER 5
-
-enum iscsit_transport_type {
- ISCSI_TCP = 0,
- ISCSI_SCTP_TCP = 1,
- ISCSI_SCTP_UDP = 2,
- ISCSI_IWARP_TCP = 3,
- ISCSI_IWARP_SCTP = 4,
- ISCSI_INFINIBAND = 5,
-};
-
-/* RFC-3720 7.1.4 Standard Connection State Diagram for a Target */
-enum target_conn_state_table {
- TARG_CONN_STATE_FREE = 0x1,
- TARG_CONN_STATE_XPT_UP = 0x3,
- TARG_CONN_STATE_IN_LOGIN = 0x4,
- TARG_CONN_STATE_LOGGED_IN = 0x5,
- TARG_CONN_STATE_IN_LOGOUT = 0x6,
- TARG_CONN_STATE_LOGOUT_REQUESTED = 0x7,
- TARG_CONN_STATE_CLEANUP_WAIT = 0x8,
-};
-
-/* RFC-3720 7.3.2 Session State Diagram for a Target */
-enum target_sess_state_table {
- TARG_SESS_STATE_FREE = 0x1,
- TARG_SESS_STATE_ACTIVE = 0x2,
- TARG_SESS_STATE_LOGGED_IN = 0x3,
- TARG_SESS_STATE_FAILED = 0x4,
- TARG_SESS_STATE_IN_CONTINUE = 0x5,
-};
-
-/* struct iscsi_data_count->type */
-enum data_count_type {
- ISCSI_RX_DATA = 1,
- ISCSI_TX_DATA = 2,
-};
-
-/* struct iscsi_datain_req->dr_complete */
-enum datain_req_comp_table {
- DATAIN_COMPLETE_NORMAL = 1,
- DATAIN_COMPLETE_WITHIN_COMMAND_RECOVERY = 2,
- DATAIN_COMPLETE_CONNECTION_RECOVERY = 3,
-};
-
-/* struct iscsi_datain_req->recovery */
-enum datain_req_rec_table {
- DATAIN_WITHIN_COMMAND_RECOVERY = 1,
- DATAIN_CONNECTION_RECOVERY = 2,
-};
-
-/* struct iscsi_portal_group->state */
-enum tpg_state_table {
- TPG_STATE_FREE = 0,
- TPG_STATE_ACTIVE = 1,
- TPG_STATE_INACTIVE = 2,
- TPG_STATE_COLD_RESET = 3,
-};
-
-/* struct iscsi_tiqn->tiqn_state */
-enum tiqn_state_table {
- TIQN_STATE_ACTIVE = 1,
- TIQN_STATE_SHUTDOWN = 2,
-};
-
-/* struct iscsi_cmd->cmd_flags */
-enum cmd_flags_table {
- ICF_GOT_LAST_DATAOUT = 0x00000001,
- ICF_GOT_DATACK_SNACK = 0x00000002,
- ICF_NON_IMMEDIATE_UNSOLICITED_DATA = 0x00000004,
- ICF_SENT_LAST_R2T = 0x00000008,
- ICF_WITHIN_COMMAND_RECOVERY = 0x00000010,
- ICF_CONTIG_MEMORY = 0x00000020,
- ICF_ATTACHED_TO_RQUEUE = 0x00000040,
- ICF_OOO_CMDSN = 0x00000080,
- IFC_SENDTARGETS_ALL = 0x00000100,
- IFC_SENDTARGETS_SINGLE = 0x00000200,
-};
-
-/* struct iscsi_cmd->i_state */
-enum cmd_i_state_table {
- ISTATE_NO_STATE = 0,
- ISTATE_NEW_CMD = 1,
- ISTATE_DEFERRED_CMD = 2,
- ISTATE_UNSOLICITED_DATA = 3,
- ISTATE_RECEIVE_DATAOUT = 4,
- ISTATE_RECEIVE_DATAOUT_RECOVERY = 5,
- ISTATE_RECEIVED_LAST_DATAOUT = 6,
- ISTATE_WITHIN_DATAOUT_RECOVERY = 7,
- ISTATE_IN_CONNECTION_RECOVERY = 8,
- ISTATE_RECEIVED_TASKMGT = 9,
- ISTATE_SEND_ASYNCMSG = 10,
- ISTATE_SENT_ASYNCMSG = 11,
- ISTATE_SEND_DATAIN = 12,
- ISTATE_SEND_LAST_DATAIN = 13,
- ISTATE_SENT_LAST_DATAIN = 14,
- ISTATE_SEND_LOGOUTRSP = 15,
- ISTATE_SENT_LOGOUTRSP = 16,
- ISTATE_SEND_NOPIN = 17,
- ISTATE_SENT_NOPIN = 18,
- ISTATE_SEND_REJECT = 19,
- ISTATE_SENT_REJECT = 20,
- ISTATE_SEND_R2T = 21,
- ISTATE_SENT_R2T = 22,
- ISTATE_SEND_R2T_RECOVERY = 23,
- ISTATE_SENT_R2T_RECOVERY = 24,
- ISTATE_SEND_LAST_R2T = 25,
- ISTATE_SENT_LAST_R2T = 26,
- ISTATE_SEND_LAST_R2T_RECOVERY = 27,
- ISTATE_SENT_LAST_R2T_RECOVERY = 28,
- ISTATE_SEND_STATUS = 29,
- ISTATE_SEND_STATUS_BROKEN_PC = 30,
- ISTATE_SENT_STATUS = 31,
- ISTATE_SEND_STATUS_RECOVERY = 32,
- ISTATE_SENT_STATUS_RECOVERY = 33,
- ISTATE_SEND_TASKMGTRSP = 34,
- ISTATE_SENT_TASKMGTRSP = 35,
- ISTATE_SEND_TEXTRSP = 36,
- ISTATE_SENT_TEXTRSP = 37,
- ISTATE_SEND_NOPIN_WANT_RESPONSE = 38,
- ISTATE_SENT_NOPIN_WANT_RESPONSE = 39,
- ISTATE_SEND_NOPIN_NO_RESPONSE = 40,
- ISTATE_REMOVE = 41,
- ISTATE_FREE = 42,
-};
-
-/* Used for iscsi_recover_cmdsn() return values */
-enum recover_cmdsn_ret_table {
- CMDSN_ERROR_CANNOT_RECOVER = -1,
- CMDSN_NORMAL_OPERATION = 0,
- CMDSN_LOWER_THAN_EXP = 1,
- CMDSN_HIGHER_THAN_EXP = 2,
- CMDSN_MAXCMDSN_OVERRUN = 3,
-};
-
-/* Used for iscsi_handle_immediate_data() return values */
-enum immedate_data_ret_table {
- IMMEDIATE_DATA_CANNOT_RECOVER = -1,
- IMMEDIATE_DATA_NORMAL_OPERATION = 0,
- IMMEDIATE_DATA_ERL1_CRC_FAILURE = 1,
-};
-
-/* Used for iscsi_decide_dataout_action() return values */
-enum dataout_action_ret_table {
- DATAOUT_CANNOT_RECOVER = -1,
- DATAOUT_NORMAL = 0,
- DATAOUT_SEND_R2T = 1,
- DATAOUT_SEND_TO_TRANSPORT = 2,
- DATAOUT_WITHIN_COMMAND_RECOVERY = 3,
-};
-
-/* Used for struct iscsi_node_auth->naf_flags */
-enum naf_flags_table {
- NAF_USERID_SET = 0x01,
- NAF_PASSWORD_SET = 0x02,
- NAF_USERID_IN_SET = 0x04,
- NAF_PASSWORD_IN_SET = 0x08,
-};
-
-/* Used by various struct timer_list to manage iSCSI specific state */
-enum iscsi_timer_flags_table {
- ISCSI_TF_RUNNING = 0x01,
- ISCSI_TF_STOP = 0x02,
- ISCSI_TF_EXPIRED = 0x04,
-};
-
-/* Used for struct iscsi_np->np_flags */
-enum np_flags_table {
- NPF_IP_NETWORK = 0x00,
-};
-
-/* Used for struct iscsi_np->np_thread_state */
-enum np_thread_state_table {
- ISCSI_NP_THREAD_ACTIVE = 1,
- ISCSI_NP_THREAD_INACTIVE = 2,
- ISCSI_NP_THREAD_RESET = 3,
- ISCSI_NP_THREAD_SHUTDOWN = 4,
- ISCSI_NP_THREAD_EXIT = 5,
-};
-
-struct iscsi_conn_ops {
- u8 HeaderDigest; /* [0,1] == [None,CRC32C] */
- u8 DataDigest; /* [0,1] == [None,CRC32C] */
- u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
- u32 MaxXmitDataSegmentLength; /* [512..2**24-1] */
- u8 OFMarker; /* [0,1] == [No,Yes] */
- u8 IFMarker; /* [0,1] == [No,Yes] */
- u32 OFMarkInt; /* [1..65535] */
- u32 IFMarkInt; /* [1..65535] */
- /*
- * iSER specific connection parameters
- */
- u32 InitiatorRecvDataSegmentLength; /* [512..2**24-1] */
- u32 TargetRecvDataSegmentLength; /* [512..2**24-1] */
-};
-
-struct iscsi_sess_ops {
- char InitiatorName[224];
- char InitiatorAlias[256];
- char TargetName[224];
- char TargetAlias[256];
- char TargetAddress[256];
- u16 TargetPortalGroupTag; /* [0..65535] */
- u16 MaxConnections; /* [1..65535] */
- u8 InitialR2T; /* [0,1] == [No,Yes] */
- u8 ImmediateData; /* [0,1] == [No,Yes] */
- u32 MaxBurstLength; /* [512..2**24-1] */
- u32 FirstBurstLength; /* [512..2**24-1] */
- u16 DefaultTime2Wait; /* [0..3600] */
- u16 DefaultTime2Retain; /* [0..3600] */
- u16 MaxOutstandingR2T; /* [1..65535] */
- u8 DataPDUInOrder; /* [0,1] == [No,Yes] */
- u8 DataSequenceInOrder; /* [0,1] == [No,Yes] */
- u8 ErrorRecoveryLevel; /* [0..2] */
- u8 SessionType; /* [0,1] == [Normal,Discovery]*/
- /*
- * iSER specific session parameters
- */
- u8 RDMAExtensions; /* [0,1] == [No,Yes] */
-};
-
-struct iscsi_queue_req {
- int state;
- struct iscsi_cmd *cmd;
- struct list_head qr_list;
-};
-
-struct iscsi_data_count {
- int data_length;
- int sync_and_steering;
- enum data_count_type type;
- u32 iov_count;
- u32 ss_iov_count;
- u32 ss_marker_count;
- struct kvec *iov;
-};
-
-struct iscsi_param_list {
- bool iser;
- struct list_head param_list;
- struct list_head extra_response_list;
-};
-
-struct iscsi_datain_req {
- enum datain_req_comp_table dr_complete;
- int generate_recovery_values;
- enum datain_req_rec_table recovery;
- u32 begrun;
- u32 runlength;
- u32 data_length;
- u32 data_offset;
- u32 data_sn;
- u32 next_burst_len;
- u32 read_data_done;
- u32 seq_send_order;
- struct list_head cmd_datain_node;
-} ____cacheline_aligned;
-
-struct iscsi_ooo_cmdsn {
- u16 cid;
- u32 batch_count;
- u32 cmdsn;
- u32 exp_cmdsn;
- struct iscsi_cmd *cmd;
- struct list_head ooo_list;
-} ____cacheline_aligned;
-
-struct iscsi_datain {
- u8 flags;
- u32 data_sn;
- u32 length;
- u32 offset;
-} ____cacheline_aligned;
-
-struct iscsi_r2t {
- int seq_complete;
- int recovery_r2t;
- int sent_r2t;
- u32 r2t_sn;
- u32 offset;
- u32 targ_xfer_tag;
- u32 xfer_len;
- struct list_head r2t_list;
-} ____cacheline_aligned;
-
-struct iscsi_cmd {
- enum iscsi_timer_flags_table dataout_timer_flags;
- /* DataOUT timeout retries */
- u8 dataout_timeout_retries;
- /* Within command recovery count */
- u8 error_recovery_count;
- /* iSCSI dependent state for out or order CmdSNs */
- enum cmd_i_state_table deferred_i_state;
- /* iSCSI dependent state */
- enum cmd_i_state_table i_state;
- /* Command is an immediate command (ISCSI_OP_IMMEDIATE set) */
- u8 immediate_cmd;
- /* Immediate data present */
- u8 immediate_data;
- /* iSCSI Opcode */
- u8 iscsi_opcode;
- /* iSCSI Response Code */
- u8 iscsi_response;
- /* Logout reason when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
- u8 logout_reason;
- /* Logout response code when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
- u8 logout_response;
- /* MaxCmdSN has been incremented */
- u8 maxcmdsn_inc;
- /* Immediate Unsolicited Dataout */
- u8 unsolicited_data;
- /* Reject reason code */
- u8 reject_reason;
- /* CID contained in logout PDU when opcode == ISCSI_INIT_LOGOUT_CMND */
- u16 logout_cid;
- /* Command flags */
- enum cmd_flags_table cmd_flags;
- /* Initiator Task Tag assigned from Initiator */
- itt_t init_task_tag;
- /* Target Transfer Tag assigned from Target */
- u32 targ_xfer_tag;
- /* CmdSN assigned from Initiator */
- u32 cmd_sn;
- /* ExpStatSN assigned from Initiator */
- u32 exp_stat_sn;
- /* StatSN assigned to this ITT */
- u32 stat_sn;
- /* DataSN Counter */
- u32 data_sn;
- /* R2TSN Counter */
- u32 r2t_sn;
- /* Last DataSN acknowledged via DataAck SNACK */
- u32 acked_data_sn;
- /* Used for echoing NOPOUT ping data */
- u32 buf_ptr_size;
- /* Used to store DataDigest */
- u32 data_crc;
- /* Counter for MaxOutstandingR2T */
- u32 outstanding_r2ts;
- /* Next R2T Offset when DataSequenceInOrder=Yes */
- u32 r2t_offset;
- /* Iovec current and orig count for iscsi_cmd->iov_data */
- u32 iov_data_count;
- u32 orig_iov_data_count;
- /* Number of miscellaneous iovecs used for IP stack calls */
- u32 iov_misc_count;
- /* Number of struct iscsi_pdu in struct iscsi_cmd->pdu_list */
- u32 pdu_count;
- /* Next struct iscsi_pdu to send in struct iscsi_cmd->pdu_list */
- u32 pdu_send_order;
- /* Current struct iscsi_pdu in struct iscsi_cmd->pdu_list */
- u32 pdu_start;
- /* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
- u32 seq_send_order;
- /* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
- u32 seq_count;
- /* Current struct iscsi_seq in struct iscsi_cmd->seq_list */
- u32 seq_no;
- /* Lowest offset in current DataOUT sequence */
- u32 seq_start_offset;
- /* Highest offset in current DataOUT sequence */
- u32 seq_end_offset;
- /* Total size in bytes received so far of READ data */
- u32 read_data_done;
- /* Total size in bytes received so far of WRITE data */
- u32 write_data_done;
- /* Counter for FirstBurstLength key */
- u32 first_burst_len;
- /* Counter for MaxBurstLength key */
- u32 next_burst_len;
- /* Transfer size used for IP stack calls */
- u32 tx_size;
- /* Buffer used for various purposes */
- void *buf_ptr;
- /* Used by SendTargets=[iqn.,eui.] discovery */
- void *text_in_ptr;
- /* See include/linux/dma-mapping.h */
- enum dma_data_direction data_direction;
- /* iSCSI PDU Header + CRC */
- unsigned char pdu[ISCSI_HDR_LEN + ISCSI_CRC_LEN];
- /* Number of times struct iscsi_cmd is present in immediate queue */
- atomic_t immed_queue_count;
- atomic_t response_queue_count;
- spinlock_t datain_lock;
- spinlock_t dataout_timeout_lock;
- /* spinlock for protecting struct iscsi_cmd->i_state */
- spinlock_t istate_lock;
- /* spinlock for adding within command recovery entries */
- spinlock_t error_lock;
- /* spinlock for adding R2Ts */
- spinlock_t r2t_lock;
- /* DataIN List */
- struct list_head datain_list;
- /* R2T List */
- struct list_head cmd_r2t_list;
- /* Timer for DataOUT */
- struct timer_list dataout_timer;
- /* Iovecs for SCSI data payload RX/TX w/ kernel level sockets */
- struct kvec *iov_data;
- /* Iovecs for miscellaneous purposes */
-#define ISCSI_MISC_IOVECS 5
- struct kvec iov_misc[ISCSI_MISC_IOVECS];
- /* Array of struct iscsi_pdu used for DataPDUInOrder=No */
- struct iscsi_pdu *pdu_list;
- /* Current struct iscsi_pdu used for DataPDUInOrder=No */
- struct iscsi_pdu *pdu_ptr;
- /* Array of struct iscsi_seq used for DataSequenceInOrder=No */
- struct iscsi_seq *seq_list;
- /* Current struct iscsi_seq used for DataSequenceInOrder=No */
- struct iscsi_seq *seq_ptr;
- /* TMR Request when iscsi_opcode == ISCSI_OP_SCSI_TMFUNC */
- struct iscsi_tmr_req *tmr_req;
- /* Connection this command is alligient to */
- struct iscsi_conn *conn;
- /* Pointer to connection recovery entry */
- struct iscsi_conn_recovery *cr;
- /* Session the command is part of, used for connection recovery */
- struct iscsi_session *sess;
- /* list_head for connection list */
- struct list_head i_conn_node;
- /* The TCM I/O descriptor that is accessed via container_of() */
- struct se_cmd se_cmd;
- /* Sense buffer that will be mapped into outgoing status */
-#define ISCSI_SENSE_BUFFER_LEN (TRANSPORT_SENSE_BUFFER + 2)
- unsigned char sense_buffer[ISCSI_SENSE_BUFFER_LEN];
-
- u32 padding;
- u8 pad_bytes[4];
-
- struct scatterlist *first_data_sg;
- u32 first_data_sg_off;
- u32 kmapped_nents;
- sense_reason_t sense_reason;
-} ____cacheline_aligned;
-
-struct iscsi_tmr_req {
- bool task_reassign:1;
- u32 exp_data_sn;
- struct iscsi_cmd *ref_cmd;
- struct iscsi_conn_recovery *conn_recovery;
- struct se_tmr_req *se_tmr_req;
-};
-
-struct iscsi_conn {
- wait_queue_head_t queues_wq;
- /* Authentication Successful for this connection */
- u8 auth_complete;
- /* State connection is currently in */
- u8 conn_state;
- u8 conn_logout_reason;
- u8 network_transport;
- enum iscsi_timer_flags_table nopin_timer_flags;
- enum iscsi_timer_flags_table nopin_response_timer_flags;
- /* Used to know what thread encountered a transport failure */
- u8 which_thread;
- /* connection id assigned by the Initiator */
- u16 cid;
- /* Remote TCP Port */
- u16 login_port;
- u16 local_port;
- int net_size;
- int login_family;
- u32 auth_id;
- u32 conn_flags;
- /* Used for iscsi_tx_login_rsp() */
- itt_t login_itt;
- u32 exp_statsn;
- /* Per connection status sequence number */
- u32 stat_sn;
- /* IFMarkInt's Current Value */
- u32 if_marker;
- /* OFMarkInt's Current Value */
- u32 of_marker;
- /* Used for calculating OFMarker offset to next PDU */
- u32 of_marker_offset;
-#define IPV6_ADDRESS_SPACE 48
- unsigned char login_ip[IPV6_ADDRESS_SPACE];
- unsigned char local_ip[IPV6_ADDRESS_SPACE];
- int conn_usage_count;
- int conn_waiting_on_uc;
- atomic_t check_immediate_queue;
- atomic_t conn_logout_remove;
- atomic_t connection_exit;
- atomic_t connection_recovery;
- atomic_t connection_reinstatement;
- atomic_t connection_wait_rcfr;
- atomic_t sleep_on_conn_wait_comp;
- atomic_t transport_failed;
- struct completion conn_post_wait_comp;
- struct completion conn_wait_comp;
- struct completion conn_wait_rcfr_comp;
- struct completion conn_waiting_on_uc_comp;
- struct completion conn_logout_comp;
- struct completion tx_half_close_comp;
- struct completion rx_half_close_comp;
- /* socket used by this connection */
- struct socket *sock;
- void (*orig_data_ready)(struct sock *);
- void (*orig_state_change)(struct sock *);
-#define LOGIN_FLAGS_READ_ACTIVE 1
-#define LOGIN_FLAGS_CLOSED 2
-#define LOGIN_FLAGS_READY 4
- unsigned long login_flags;
- struct delayed_work login_work;
- struct delayed_work login_cleanup_work;
- struct iscsi_login *login;
- struct timer_list nopin_timer;
- struct timer_list nopin_response_timer;
- struct timer_list transport_timer;
- struct task_struct *login_kworker;
- /* Spinlock used for add/deleting cmd's from conn_cmd_list */
- spinlock_t cmd_lock;
- spinlock_t conn_usage_lock;
- spinlock_t immed_queue_lock;
- spinlock_t nopin_timer_lock;
- spinlock_t response_queue_lock;
- spinlock_t state_lock;
- /* libcrypto RX and TX contexts for crc32c */
- struct hash_desc conn_rx_hash;
- struct hash_desc conn_tx_hash;
- /* Used for scheduling TX and RX connection kthreads */
- cpumask_var_t conn_cpumask;
- unsigned int conn_rx_reset_cpumask:1;
- unsigned int conn_tx_reset_cpumask:1;
- /* list_head of struct iscsi_cmd for this connection */
- struct list_head conn_cmd_list;
- struct list_head immed_queue_list;
- struct list_head response_queue_list;
- struct iscsi_conn_ops *conn_ops;
- struct iscsi_login *conn_login;
- struct iscsit_transport *conn_transport;
- struct iscsi_param_list *param_list;
- /* Used for per connection auth state machine */
- void *auth_protocol;
- void *context;
- struct iscsi_login_thread_s *login_thread;
- struct iscsi_portal_group *tpg;
- struct iscsi_tpg_np *tpg_np;
- /* Pointer to parent session */
- struct iscsi_session *sess;
- /* Pointer to thread_set in use for this conn's threads */
- struct iscsi_thread_set *thread_set;
- /* list_head for session connection list */
- struct list_head conn_list;
-} ____cacheline_aligned;
-
-struct iscsi_conn_recovery {
- u16 cid;
- u32 cmd_count;
- u32 maxrecvdatasegmentlength;
- u32 maxxmitdatasegmentlength;
- int ready_for_reallegiance;
- struct list_head conn_recovery_cmd_list;
- spinlock_t conn_recovery_cmd_lock;
- struct timer_list time2retain_timer;
- struct iscsi_session *sess;
- struct list_head cr_list;
-} ____cacheline_aligned;
-
-struct iscsi_session {
- u8 initiator_vendor;
- u8 isid[6];
- enum iscsi_timer_flags_table time2retain_timer_flags;
- u8 version_active;
- u16 cid_called;
- u16 conn_recovery_count;
- u16 tsih;
- /* state session is currently in */
- u32 session_state;
- /* session wide counter: initiator assigned task tag */
- itt_t init_task_tag;
- /* session wide counter: target assigned task tag */
- u32 targ_xfer_tag;
- u32 cmdsn_window;
-
- /* protects cmdsn values */
- struct mutex cmdsn_mutex;
- /* session wide counter: expected command sequence number */
- u32 exp_cmd_sn;
- /* session wide counter: maximum allowed command sequence number */
- u32 max_cmd_sn;
- struct list_head sess_ooo_cmdsn_list;
-
- /* LIO specific session ID */
- u32 sid;
- char auth_type[8];
- /* unique within the target */
- int session_index;
- /* Used for session reference counting */
- int session_usage_count;
- int session_waiting_on_uc;
- atomic_long_t cmd_pdus;
- atomic_long_t rsp_pdus;
- atomic_long_t tx_data_octets;
- atomic_long_t rx_data_octets;
- atomic_long_t conn_digest_errors;
- atomic_long_t conn_timeout_errors;
- u64 creation_time;
- /* Number of active connections */
- atomic_t nconn;
- atomic_t session_continuation;
- atomic_t session_fall_back_to_erl0;
- atomic_t session_logout;
- atomic_t session_reinstatement;
- atomic_t session_stop_active;
- atomic_t sleep_on_sess_wait_comp;
- /* connection list */
- struct list_head sess_conn_list;
- struct list_head cr_active_list;
- struct list_head cr_inactive_list;
- spinlock_t conn_lock;
- spinlock_t cr_a_lock;
- spinlock_t cr_i_lock;
- spinlock_t session_usage_lock;
- spinlock_t ttt_lock;
- struct completion async_msg_comp;
- struct completion reinstatement_comp;
- struct completion session_wait_comp;
- struct completion session_waiting_on_uc_comp;
- struct timer_list time2retain_timer;
- struct iscsi_sess_ops *sess_ops;
- struct se_session *se_sess;
- struct iscsi_portal_group *tpg;
-} ____cacheline_aligned;
-
-struct iscsi_login {
- u8 auth_complete;
- u8 checked_for_existing;
- u8 current_stage;
- u8 leading_connection;
- u8 first_request;
- u8 version_min;
- u8 version_max;
- u8 login_complete;
- u8 login_failed;
- bool zero_tsih;
- char isid[6];
- u32 cmd_sn;
- itt_t init_task_tag;
- u32 initial_exp_statsn;
- u32 rsp_length;
- u16 cid;
- u16 tsih;
- char req[ISCSI_HDR_LEN];
- char rsp[ISCSI_HDR_LEN];
- char *req_buf;
- char *rsp_buf;
- struct iscsi_conn *conn;
- struct iscsi_np *np;
-} ____cacheline_aligned;
-
-struct iscsi_node_attrib {
- u32 dataout_timeout;
- u32 dataout_timeout_retries;
- u32 default_erl;
- u32 nopin_timeout;
- u32 nopin_response_timeout;
- u32 random_datain_pdu_offsets;
- u32 random_datain_seq_offsets;
- u32 random_r2t_offsets;
- u32 tmr_cold_reset;
- u32 tmr_warm_reset;
- struct iscsi_node_acl *nacl;
-};
-
-struct se_dev_entry_s;
-
-struct iscsi_node_auth {
- enum naf_flags_table naf_flags;
- int authenticate_target;
- /* Used for iscsit_global->discovery_auth,
- * set to zero (auth disabled) by default */
- int enforce_discovery_auth;
-#define MAX_USER_LEN 256
-#define MAX_PASS_LEN 256
- char userid[MAX_USER_LEN];
- char password[MAX_PASS_LEN];
- char userid_mutual[MAX_USER_LEN];
- char password_mutual[MAX_PASS_LEN];
-};
-
-#include "iscsi_target_stat.h"
-
-struct iscsi_node_stat_grps {
- struct config_group iscsi_sess_stats_group;
- struct config_group iscsi_conn_stats_group;
-};
-
-struct iscsi_node_acl {
- struct iscsi_node_attrib node_attrib;
- struct iscsi_node_auth node_auth;
- struct iscsi_node_stat_grps node_stat_grps;
- struct se_node_acl se_node_acl;
-};
-
-struct iscsi_tpg_attrib {
- u32 authentication;
- u32 login_timeout;
- u32 netif_timeout;
- u32 generate_node_acls;
- u32 cache_dynamic_acls;
- u32 default_cmdsn_depth;
- u32 demo_mode_write_protect;
- u32 prod_mode_write_protect;
- u32 demo_mode_discovery;
- u32 default_erl;
- u8 t10_pi;
- struct iscsi_portal_group *tpg;
-};
-
-struct iscsi_np {
- int np_network_transport;
- int np_ip_proto;
- int np_sock_type;
- enum np_thread_state_table np_thread_state;
- bool enabled;
- enum iscsi_timer_flags_table np_login_timer_flags;
- u32 np_exports;
- enum np_flags_table np_flags;
- unsigned char np_ip[IPV6_ADDRESS_SPACE];
- u16 np_port;
- spinlock_t np_thread_lock;
- struct completion np_restart_comp;
- struct socket *np_socket;
- struct __kernel_sockaddr_storage np_sockaddr;
- struct task_struct *np_thread;
- struct timer_list np_login_timer;
- void *np_context;
- struct iscsit_transport *np_transport;
- struct list_head np_list;
-} ____cacheline_aligned;
-
-struct iscsi_tpg_np {
- struct iscsi_np *tpg_np;
- struct iscsi_portal_group *tpg;
- struct iscsi_tpg_np *tpg_np_parent;
- struct list_head tpg_np_list;
- struct list_head tpg_np_child_list;
- struct list_head tpg_np_parent_list;
- struct se_tpg_np se_tpg_np;
- spinlock_t tpg_np_parent_lock;
- struct completion tpg_np_comp;
- struct kref tpg_np_kref;
-};
-
-struct iscsi_portal_group {
- unsigned char tpg_chap_id;
- /* TPG State */
- enum tpg_state_table tpg_state;
- /* Target Portal Group Tag */
- u16 tpgt;
- /* Id assigned to target sessions */
- u16 ntsih;
- /* Number of active sessions */
- u32 nsessions;
- /* Number of Network Portals available for this TPG */
- u32 num_tpg_nps;
- /* Per TPG LIO specific session ID. */
- u32 sid;
- /* Spinlock for adding/removing Network Portals */
- spinlock_t tpg_np_lock;
- spinlock_t tpg_state_lock;
- struct se_portal_group tpg_se_tpg;
- struct mutex tpg_access_lock;
- struct semaphore np_login_sem;
- struct iscsi_tpg_attrib tpg_attrib;
- struct iscsi_node_auth tpg_demo_auth;
- /* Pointer to default list of iSCSI parameters for TPG */
- struct iscsi_param_list *param_list;
- struct iscsi_tiqn *tpg_tiqn;
- struct list_head tpg_gnp_list;
- struct list_head tpg_list;
-} ____cacheline_aligned;
-
-struct iscsi_wwn_stat_grps {
- struct config_group iscsi_stat_group;
- struct config_group iscsi_instance_group;
- struct config_group iscsi_sess_err_group;
- struct config_group iscsi_tgt_attr_group;
- struct config_group iscsi_login_stats_group;
- struct config_group iscsi_logout_stats_group;
-};
-
-struct iscsi_tiqn {
-#define ISCSI_IQN_LEN 224
- unsigned char tiqn[ISCSI_IQN_LEN];
- enum tiqn_state_table tiqn_state;
- int tiqn_access_count;
- u32 tiqn_active_tpgs;
- u32 tiqn_ntpgs;
- u32 tiqn_num_tpg_nps;
- u32 tiqn_nsessions;
- struct list_head tiqn_list;
- struct list_head tiqn_tpg_list;
- spinlock_t tiqn_state_lock;
- spinlock_t tiqn_tpg_lock;
- struct se_wwn tiqn_wwn;
- struct iscsi_wwn_stat_grps tiqn_stat_grps;
- int tiqn_index;
- struct iscsi_sess_err_stats sess_err_stats;
- struct iscsi_login_stats login_stats;
- struct iscsi_logout_stats logout_stats;
-} ____cacheline_aligned;
-
-struct iscsit_global {
- /* In core shutdown */
- u32 in_shutdown;
- u32 active_ts;
- /* Unique identifier used for the authentication daemon */
- u32 auth_id;
- u32 inactive_ts;
- /* Thread Set bitmap count */
- int ts_bitmap_count;
- /* Thread Set bitmap pointer */
- unsigned long *ts_bitmap;
- /* Used for iSCSI discovery session authentication */
- struct iscsi_node_acl discovery_acl;
- struct iscsi_portal_group *discovery_tpg;
-};
-
-#endif /* ISCSI_TARGET_CORE_H */
#include <scsi/iscsi_proto.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_erl1.h"
#include "iscsi_target_util.h"
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_device.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_tq.h"
#include "iscsi_target_erl0.h"
#include <target/target_core_fabric.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_datain_values.h"
#include "iscsi_target_device.h"
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_datain_values.h"
#include "iscsi_target_util.h"
#include "iscsi_target_erl0.h"
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
+#include <target/iscsi/iscsi_target_stat.h>
#include "iscsi_target_tq.h"
#include "iscsi_target_device.h"
#include "iscsi_target_nego.h"
#include "iscsi_target_erl0.h"
#include "iscsi_target_erl2.h"
#include "iscsi_target_login.h"
-#include "iscsi_target_stat.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
#include "iscsi_target.h"
#include <target/target_core_fabric.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_login.h"
#include "iscsi_target_nego.h"
#include <target/target_core_base.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_device.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
#include <linux/slab.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_util.h"
#include "iscsi_target_parameters.h"
#include <linux/slab.h>
#include <linux/random.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_util.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_seq_pdu_list.h"
#include <target/target_core_base.h>
#include <target/configfs_macros.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_device.h"
#include "iscsi_target_tpg.h"
#include "iscsi_target_util.h"
-#include "iscsi_target_stat.h"
+#include <target/iscsi/iscsi_target_stat.h>
#ifndef INITIAL_JIFFIES
#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ))
+++ /dev/null
-#ifndef ISCSI_TARGET_STAT_H
-#define ISCSI_TARGET_STAT_H
-
-/*
- * For struct iscsi_tiqn->tiqn_wwn default groups
- */
-extern struct config_item_type iscsi_stat_instance_cit;
-extern struct config_item_type iscsi_stat_sess_err_cit;
-extern struct config_item_type iscsi_stat_tgt_attr_cit;
-extern struct config_item_type iscsi_stat_login_cit;
-extern struct config_item_type iscsi_stat_logout_cit;
-
-/*
- * For struct iscsi_session->se_sess default groups
- */
-extern struct config_item_type iscsi_stat_sess_cit;
-
-/* iSCSI session error types */
-#define ISCSI_SESS_ERR_UNKNOWN 0
-#define ISCSI_SESS_ERR_DIGEST 1
-#define ISCSI_SESS_ERR_CXN_TIMEOUT 2
-#define ISCSI_SESS_ERR_PDU_FORMAT 3
-
-/* iSCSI session error stats */
-struct iscsi_sess_err_stats {
- spinlock_t lock;
- u32 digest_errors;
- u32 cxn_timeout_errors;
- u32 pdu_format_errors;
- u32 last_sess_failure_type;
- char last_sess_fail_rem_name[224];
-} ____cacheline_aligned;
-
-/* iSCSI login failure types (sub oids) */
-#define ISCSI_LOGIN_FAIL_OTHER 2
-#define ISCSI_LOGIN_FAIL_REDIRECT 3
-#define ISCSI_LOGIN_FAIL_AUTHORIZE 4
-#define ISCSI_LOGIN_FAIL_AUTHENTICATE 5
-#define ISCSI_LOGIN_FAIL_NEGOTIATE 6
-
-/* iSCSI login stats */
-struct iscsi_login_stats {
- spinlock_t lock;
- u32 accepts;
- u32 other_fails;
- u32 redirects;
- u32 authorize_fails;
- u32 authenticate_fails;
- u32 negotiate_fails; /* used for notifications */
- u64 last_fail_time; /* time stamp (jiffies) */
- u32 last_fail_type;
- int last_intr_fail_ip_family;
- unsigned char last_intr_fail_ip_addr[IPV6_ADDRESS_SPACE];
- char last_intr_fail_name[224];
-} ____cacheline_aligned;
-
-/* iSCSI logout stats */
-struct iscsi_logout_stats {
- spinlock_t lock;
- u32 normal_logouts;
- u32 abnormal_logouts;
-} ____cacheline_aligned;
-
-#endif /*** ISCSI_TARGET_STAT_H ***/
#include <target/target_core_fabric.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_datain_values.h"
#include "iscsi_target_device.h"
#include <target/target_core_fabric.h>
#include <target/target_core_configfs.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_erl0.h"
#include "iscsi_target_login.h"
#include "iscsi_target_nodeattrib.h"
#include <linux/list.h>
#include <linux/bitmap.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_tq.h"
#include "iscsi_target.h"
#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_transport.h>
-#include "iscsi_target_core.h"
+#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
#include "iscsi_target_seq_pdu_list.h"
#include "iscsi_target_datain_values.h"
--- /dev/null
+#ifndef ISCSI_TARGET_CORE_H
+#define ISCSI_TARGET_CORE_H
+
+#include <linux/in.h>
+#include <linux/configfs.h>
+#include <net/sock.h>
+#include <net/tcp.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/iscsi_proto.h>
+#include <target/target_core_base.h>
+
+#define ISCSIT_VERSION "v4.1.0"
+#define ISCSI_MAX_DATASN_MISSING_COUNT 16
+#define ISCSI_TX_THREAD_TCP_TIMEOUT 2
+#define ISCSI_RX_THREAD_TCP_TIMEOUT 2
+#define SECONDS_FOR_ASYNC_LOGOUT 10
+#define SECONDS_FOR_ASYNC_TEXT 10
+#define SECONDS_FOR_LOGOUT_COMP 15
+#define WHITE_SPACE " \t\v\f\n\r"
+#define ISCSIT_MIN_TAGS 16
+#define ISCSIT_EXTRA_TAGS 8
+#define ISCSIT_TCP_BACKLOG 256
+
+/* struct iscsi_node_attrib sanity values */
+#define NA_DATAOUT_TIMEOUT 3
+#define NA_DATAOUT_TIMEOUT_MAX 60
+#define NA_DATAOUT_TIMEOUT_MIX 2
+#define NA_DATAOUT_TIMEOUT_RETRIES 5
+#define NA_DATAOUT_TIMEOUT_RETRIES_MAX 15
+#define NA_DATAOUT_TIMEOUT_RETRIES_MIN 1
+#define NA_NOPIN_TIMEOUT 15
+#define NA_NOPIN_TIMEOUT_MAX 60
+#define NA_NOPIN_TIMEOUT_MIN 3
+#define NA_NOPIN_RESPONSE_TIMEOUT 30
+#define NA_NOPIN_RESPONSE_TIMEOUT_MAX 60
+#define NA_NOPIN_RESPONSE_TIMEOUT_MIN 3
+#define NA_RANDOM_DATAIN_PDU_OFFSETS 0
+#define NA_RANDOM_DATAIN_SEQ_OFFSETS 0
+#define NA_RANDOM_R2T_OFFSETS 0
+
+/* struct iscsi_tpg_attrib sanity values */
+#define TA_AUTHENTICATION 1
+#define TA_LOGIN_TIMEOUT 15
+#define TA_LOGIN_TIMEOUT_MAX 30
+#define TA_LOGIN_TIMEOUT_MIN 5
+#define TA_NETIF_TIMEOUT 2
+#define TA_NETIF_TIMEOUT_MAX 15
+#define TA_NETIF_TIMEOUT_MIN 2
+#define TA_GENERATE_NODE_ACLS 0
+#define TA_DEFAULT_CMDSN_DEPTH 64
+#define TA_DEFAULT_CMDSN_DEPTH_MAX 512
+#define TA_DEFAULT_CMDSN_DEPTH_MIN 1
+#define TA_CACHE_DYNAMIC_ACLS 0
+/* Enabled by default in demo mode (generic_node_acls=1) */
+#define TA_DEMO_MODE_WRITE_PROTECT 1
+/* Disabled by default in production mode w/ explict ACLs */
+#define TA_PROD_MODE_WRITE_PROTECT 0
+#define TA_DEMO_MODE_DISCOVERY 1
+#define TA_DEFAULT_ERL 0
+#define TA_CACHE_CORE_NPS 0
+/* T10 protection information disabled by default */
+#define TA_DEFAULT_T10_PI 0
+
+#define ISCSI_IOV_DATA_BUFFER 5
+
+enum iscsit_transport_type {
+ ISCSI_TCP = 0,
+ ISCSI_SCTP_TCP = 1,
+ ISCSI_SCTP_UDP = 2,
+ ISCSI_IWARP_TCP = 3,
+ ISCSI_IWARP_SCTP = 4,
+ ISCSI_INFINIBAND = 5,
+};
+
+/* RFC-3720 7.1.4 Standard Connection State Diagram for a Target */
+enum target_conn_state_table {
+ TARG_CONN_STATE_FREE = 0x1,
+ TARG_CONN_STATE_XPT_UP = 0x3,
+ TARG_CONN_STATE_IN_LOGIN = 0x4,
+ TARG_CONN_STATE_LOGGED_IN = 0x5,
+ TARG_CONN_STATE_IN_LOGOUT = 0x6,
+ TARG_CONN_STATE_LOGOUT_REQUESTED = 0x7,
+ TARG_CONN_STATE_CLEANUP_WAIT = 0x8,
+};
+
+/* RFC-3720 7.3.2 Session State Diagram for a Target */
+enum target_sess_state_table {
+ TARG_SESS_STATE_FREE = 0x1,
+ TARG_SESS_STATE_ACTIVE = 0x2,
+ TARG_SESS_STATE_LOGGED_IN = 0x3,
+ TARG_SESS_STATE_FAILED = 0x4,
+ TARG_SESS_STATE_IN_CONTINUE = 0x5,
+};
+
+/* struct iscsi_data_count->type */
+enum data_count_type {
+ ISCSI_RX_DATA = 1,
+ ISCSI_TX_DATA = 2,
+};
+
+/* struct iscsi_datain_req->dr_complete */
+enum datain_req_comp_table {
+ DATAIN_COMPLETE_NORMAL = 1,
+ DATAIN_COMPLETE_WITHIN_COMMAND_RECOVERY = 2,
+ DATAIN_COMPLETE_CONNECTION_RECOVERY = 3,
+};
+
+/* struct iscsi_datain_req->recovery */
+enum datain_req_rec_table {
+ DATAIN_WITHIN_COMMAND_RECOVERY = 1,
+ DATAIN_CONNECTION_RECOVERY = 2,
+};
+
+/* struct iscsi_portal_group->state */
+enum tpg_state_table {
+ TPG_STATE_FREE = 0,
+ TPG_STATE_ACTIVE = 1,
+ TPG_STATE_INACTIVE = 2,
+ TPG_STATE_COLD_RESET = 3,
+};
+
+/* struct iscsi_tiqn->tiqn_state */
+enum tiqn_state_table {
+ TIQN_STATE_ACTIVE = 1,
+ TIQN_STATE_SHUTDOWN = 2,
+};
+
+/* struct iscsi_cmd->cmd_flags */
+enum cmd_flags_table {
+ ICF_GOT_LAST_DATAOUT = 0x00000001,
+ ICF_GOT_DATACK_SNACK = 0x00000002,
+ ICF_NON_IMMEDIATE_UNSOLICITED_DATA = 0x00000004,
+ ICF_SENT_LAST_R2T = 0x00000008,
+ ICF_WITHIN_COMMAND_RECOVERY = 0x00000010,
+ ICF_CONTIG_MEMORY = 0x00000020,
+ ICF_ATTACHED_TO_RQUEUE = 0x00000040,
+ ICF_OOO_CMDSN = 0x00000080,
+ IFC_SENDTARGETS_ALL = 0x00000100,
+ IFC_SENDTARGETS_SINGLE = 0x00000200,
+};
+
+/* struct iscsi_cmd->i_state */
+enum cmd_i_state_table {
+ ISTATE_NO_STATE = 0,
+ ISTATE_NEW_CMD = 1,
+ ISTATE_DEFERRED_CMD = 2,
+ ISTATE_UNSOLICITED_DATA = 3,
+ ISTATE_RECEIVE_DATAOUT = 4,
+ ISTATE_RECEIVE_DATAOUT_RECOVERY = 5,
+ ISTATE_RECEIVED_LAST_DATAOUT = 6,
+ ISTATE_WITHIN_DATAOUT_RECOVERY = 7,
+ ISTATE_IN_CONNECTION_RECOVERY = 8,
+ ISTATE_RECEIVED_TASKMGT = 9,
+ ISTATE_SEND_ASYNCMSG = 10,
+ ISTATE_SENT_ASYNCMSG = 11,
+ ISTATE_SEND_DATAIN = 12,
+ ISTATE_SEND_LAST_DATAIN = 13,
+ ISTATE_SENT_LAST_DATAIN = 14,
+ ISTATE_SEND_LOGOUTRSP = 15,
+ ISTATE_SENT_LOGOUTRSP = 16,
+ ISTATE_SEND_NOPIN = 17,
+ ISTATE_SENT_NOPIN = 18,
+ ISTATE_SEND_REJECT = 19,
+ ISTATE_SENT_REJECT = 20,
+ ISTATE_SEND_R2T = 21,
+ ISTATE_SENT_R2T = 22,
+ ISTATE_SEND_R2T_RECOVERY = 23,
+ ISTATE_SENT_R2T_RECOVERY = 24,
+ ISTATE_SEND_LAST_R2T = 25,
+ ISTATE_SENT_LAST_R2T = 26,
+ ISTATE_SEND_LAST_R2T_RECOVERY = 27,
+ ISTATE_SENT_LAST_R2T_RECOVERY = 28,
+ ISTATE_SEND_STATUS = 29,
+ ISTATE_SEND_STATUS_BROKEN_PC = 30,
+ ISTATE_SENT_STATUS = 31,
+ ISTATE_SEND_STATUS_RECOVERY = 32,
+ ISTATE_SENT_STATUS_RECOVERY = 33,
+ ISTATE_SEND_TASKMGTRSP = 34,
+ ISTATE_SENT_TASKMGTRSP = 35,
+ ISTATE_SEND_TEXTRSP = 36,
+ ISTATE_SENT_TEXTRSP = 37,
+ ISTATE_SEND_NOPIN_WANT_RESPONSE = 38,
+ ISTATE_SENT_NOPIN_WANT_RESPONSE = 39,
+ ISTATE_SEND_NOPIN_NO_RESPONSE = 40,
+ ISTATE_REMOVE = 41,
+ ISTATE_FREE = 42,
+};
+
+/* Used for iscsi_recover_cmdsn() return values */
+enum recover_cmdsn_ret_table {
+ CMDSN_ERROR_CANNOT_RECOVER = -1,
+ CMDSN_NORMAL_OPERATION = 0,
+ CMDSN_LOWER_THAN_EXP = 1,
+ CMDSN_HIGHER_THAN_EXP = 2,
+ CMDSN_MAXCMDSN_OVERRUN = 3,
+};
+
+/* Used for iscsi_handle_immediate_data() return values */
+enum immedate_data_ret_table {
+ IMMEDIATE_DATA_CANNOT_RECOVER = -1,
+ IMMEDIATE_DATA_NORMAL_OPERATION = 0,
+ IMMEDIATE_DATA_ERL1_CRC_FAILURE = 1,
+};
+
+/* Used for iscsi_decide_dataout_action() return values */
+enum dataout_action_ret_table {
+ DATAOUT_CANNOT_RECOVER = -1,
+ DATAOUT_NORMAL = 0,
+ DATAOUT_SEND_R2T = 1,
+ DATAOUT_SEND_TO_TRANSPORT = 2,
+ DATAOUT_WITHIN_COMMAND_RECOVERY = 3,
+};
+
+/* Used for struct iscsi_node_auth->naf_flags */
+enum naf_flags_table {
+ NAF_USERID_SET = 0x01,
+ NAF_PASSWORD_SET = 0x02,
+ NAF_USERID_IN_SET = 0x04,
+ NAF_PASSWORD_IN_SET = 0x08,
+};
+
+/* Used by various struct timer_list to manage iSCSI specific state */
+enum iscsi_timer_flags_table {
+ ISCSI_TF_RUNNING = 0x01,
+ ISCSI_TF_STOP = 0x02,
+ ISCSI_TF_EXPIRED = 0x04,
+};
+
+/* Used for struct iscsi_np->np_flags */
+enum np_flags_table {
+ NPF_IP_NETWORK = 0x00,
+};
+
+/* Used for struct iscsi_np->np_thread_state */
+enum np_thread_state_table {
+ ISCSI_NP_THREAD_ACTIVE = 1,
+ ISCSI_NP_THREAD_INACTIVE = 2,
+ ISCSI_NP_THREAD_RESET = 3,
+ ISCSI_NP_THREAD_SHUTDOWN = 4,
+ ISCSI_NP_THREAD_EXIT = 5,
+};
+
+struct iscsi_conn_ops {
+ u8 HeaderDigest; /* [0,1] == [None,CRC32C] */
+ u8 DataDigest; /* [0,1] == [None,CRC32C] */
+ u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
+ u32 MaxXmitDataSegmentLength; /* [512..2**24-1] */
+ u8 OFMarker; /* [0,1] == [No,Yes] */
+ u8 IFMarker; /* [0,1] == [No,Yes] */
+ u32 OFMarkInt; /* [1..65535] */
+ u32 IFMarkInt; /* [1..65535] */
+ /*
+ * iSER specific connection parameters
+ */
+ u32 InitiatorRecvDataSegmentLength; /* [512..2**24-1] */
+ u32 TargetRecvDataSegmentLength; /* [512..2**24-1] */
+};
+
+struct iscsi_sess_ops {
+ char InitiatorName[224];
+ char InitiatorAlias[256];
+ char TargetName[224];
+ char TargetAlias[256];
+ char TargetAddress[256];
+ u16 TargetPortalGroupTag; /* [0..65535] */
+ u16 MaxConnections; /* [1..65535] */
+ u8 InitialR2T; /* [0,1] == [No,Yes] */
+ u8 ImmediateData; /* [0,1] == [No,Yes] */
+ u32 MaxBurstLength; /* [512..2**24-1] */
+ u32 FirstBurstLength; /* [512..2**24-1] */
+ u16 DefaultTime2Wait; /* [0..3600] */
+ u16 DefaultTime2Retain; /* [0..3600] */
+ u16 MaxOutstandingR2T; /* [1..65535] */
+ u8 DataPDUInOrder; /* [0,1] == [No,Yes] */
+ u8 DataSequenceInOrder; /* [0,1] == [No,Yes] */
+ u8 ErrorRecoveryLevel; /* [0..2] */
+ u8 SessionType; /* [0,1] == [Normal,Discovery]*/
+ /*
+ * iSER specific session parameters
+ */
+ u8 RDMAExtensions; /* [0,1] == [No,Yes] */
+};
+
+struct iscsi_queue_req {
+ int state;
+ struct iscsi_cmd *cmd;
+ struct list_head qr_list;
+};
+
+struct iscsi_data_count {
+ int data_length;
+ int sync_and_steering;
+ enum data_count_type type;
+ u32 iov_count;
+ u32 ss_iov_count;
+ u32 ss_marker_count;
+ struct kvec *iov;
+};
+
+struct iscsi_param_list {
+ bool iser;
+ struct list_head param_list;
+ struct list_head extra_response_list;
+};
+
+struct iscsi_datain_req {
+ enum datain_req_comp_table dr_complete;
+ int generate_recovery_values;
+ enum datain_req_rec_table recovery;
+ u32 begrun;
+ u32 runlength;
+ u32 data_length;
+ u32 data_offset;
+ u32 data_sn;
+ u32 next_burst_len;
+ u32 read_data_done;
+ u32 seq_send_order;
+ struct list_head cmd_datain_node;
+} ____cacheline_aligned;
+
+struct iscsi_ooo_cmdsn {
+ u16 cid;
+ u32 batch_count;
+ u32 cmdsn;
+ u32 exp_cmdsn;
+ struct iscsi_cmd *cmd;
+ struct list_head ooo_list;
+} ____cacheline_aligned;
+
+struct iscsi_datain {
+ u8 flags;
+ u32 data_sn;
+ u32 length;
+ u32 offset;
+} ____cacheline_aligned;
+
+struct iscsi_r2t {
+ int seq_complete;
+ int recovery_r2t;
+ int sent_r2t;
+ u32 r2t_sn;
+ u32 offset;
+ u32 targ_xfer_tag;
+ u32 xfer_len;
+ struct list_head r2t_list;
+} ____cacheline_aligned;
+
+struct iscsi_cmd {
+ enum iscsi_timer_flags_table dataout_timer_flags;
+ /* DataOUT timeout retries */
+ u8 dataout_timeout_retries;
+ /* Within command recovery count */
+ u8 error_recovery_count;
+ /* iSCSI dependent state for out or order CmdSNs */
+ enum cmd_i_state_table deferred_i_state;
+ /* iSCSI dependent state */
+ enum cmd_i_state_table i_state;
+ /* Command is an immediate command (ISCSI_OP_IMMEDIATE set) */
+ u8 immediate_cmd;
+ /* Immediate data present */
+ u8 immediate_data;
+ /* iSCSI Opcode */
+ u8 iscsi_opcode;
+ /* iSCSI Response Code */
+ u8 iscsi_response;
+ /* Logout reason when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
+ u8 logout_reason;
+ /* Logout response code when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
+ u8 logout_response;
+ /* MaxCmdSN has been incremented */
+ u8 maxcmdsn_inc;
+ /* Immediate Unsolicited Dataout */
+ u8 unsolicited_data;
+ /* Reject reason code */
+ u8 reject_reason;
+ /* CID contained in logout PDU when opcode == ISCSI_INIT_LOGOUT_CMND */
+ u16 logout_cid;
+ /* Command flags */
+ enum cmd_flags_table cmd_flags;
+ /* Initiator Task Tag assigned from Initiator */
+ itt_t init_task_tag;
+ /* Target Transfer Tag assigned from Target */
+ u32 targ_xfer_tag;
+ /* CmdSN assigned from Initiator */
+ u32 cmd_sn;
+ /* ExpStatSN assigned from Initiator */
+ u32 exp_stat_sn;
+ /* StatSN assigned to this ITT */
+ u32 stat_sn;
+ /* DataSN Counter */
+ u32 data_sn;
+ /* R2TSN Counter */
+ u32 r2t_sn;
+ /* Last DataSN acknowledged via DataAck SNACK */
+ u32 acked_data_sn;
+ /* Used for echoing NOPOUT ping data */
+ u32 buf_ptr_size;
+ /* Used to store DataDigest */
+ u32 data_crc;
+ /* Counter for MaxOutstandingR2T */
+ u32 outstanding_r2ts;
+ /* Next R2T Offset when DataSequenceInOrder=Yes */
+ u32 r2t_offset;
+ /* Iovec current and orig count for iscsi_cmd->iov_data */
+ u32 iov_data_count;
+ u32 orig_iov_data_count;
+ /* Number of miscellaneous iovecs used for IP stack calls */
+ u32 iov_misc_count;
+ /* Number of struct iscsi_pdu in struct iscsi_cmd->pdu_list */
+ u32 pdu_count;
+ /* Next struct iscsi_pdu to send in struct iscsi_cmd->pdu_list */
+ u32 pdu_send_order;
+ /* Current struct iscsi_pdu in struct iscsi_cmd->pdu_list */
+ u32 pdu_start;
+ /* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
+ u32 seq_send_order;
+ /* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
+ u32 seq_count;
+ /* Current struct iscsi_seq in struct iscsi_cmd->seq_list */
+ u32 seq_no;
+ /* Lowest offset in current DataOUT sequence */
+ u32 seq_start_offset;
+ /* Highest offset in current DataOUT sequence */
+ u32 seq_end_offset;
+ /* Total size in bytes received so far of READ data */
+ u32 read_data_done;
+ /* Total size in bytes received so far of WRITE data */
+ u32 write_data_done;
+ /* Counter for FirstBurstLength key */
+ u32 first_burst_len;
+ /* Counter for MaxBurstLength key */
+ u32 next_burst_len;
+ /* Transfer size used for IP stack calls */
+ u32 tx_size;
+ /* Buffer used for various purposes */
+ void *buf_ptr;
+ /* Used by SendTargets=[iqn.,eui.] discovery */
+ void *text_in_ptr;
+ /* See include/linux/dma-mapping.h */
+ enum dma_data_direction data_direction;
+ /* iSCSI PDU Header + CRC */
+ unsigned char pdu[ISCSI_HDR_LEN + ISCSI_CRC_LEN];
+ /* Number of times struct iscsi_cmd is present in immediate queue */
+ atomic_t immed_queue_count;
+ atomic_t response_queue_count;
+ spinlock_t datain_lock;
+ spinlock_t dataout_timeout_lock;
+ /* spinlock for protecting struct iscsi_cmd->i_state */
+ spinlock_t istate_lock;
+ /* spinlock for adding within command recovery entries */
+ spinlock_t error_lock;
+ /* spinlock for adding R2Ts */
+ spinlock_t r2t_lock;
+ /* DataIN List */
+ struct list_head datain_list;
+ /* R2T List */
+ struct list_head cmd_r2t_list;
+ /* Timer for DataOUT */
+ struct timer_list dataout_timer;
+ /* Iovecs for SCSI data payload RX/TX w/ kernel level sockets */
+ struct kvec *iov_data;
+ /* Iovecs for miscellaneous purposes */
+#define ISCSI_MISC_IOVECS 5
+ struct kvec iov_misc[ISCSI_MISC_IOVECS];
+ /* Array of struct iscsi_pdu used for DataPDUInOrder=No */
+ struct iscsi_pdu *pdu_list;
+ /* Current struct iscsi_pdu used for DataPDUInOrder=No */
+ struct iscsi_pdu *pdu_ptr;
+ /* Array of struct iscsi_seq used for DataSequenceInOrder=No */
+ struct iscsi_seq *seq_list;
+ /* Current struct iscsi_seq used for DataSequenceInOrder=No */
+ struct iscsi_seq *seq_ptr;
+ /* TMR Request when iscsi_opcode == ISCSI_OP_SCSI_TMFUNC */
+ struct iscsi_tmr_req *tmr_req;
+ /* Connection this command is alligient to */
+ struct iscsi_conn *conn;
+ /* Pointer to connection recovery entry */
+ struct iscsi_conn_recovery *cr;
+ /* Session the command is part of, used for connection recovery */
+ struct iscsi_session *sess;
+ /* list_head for connection list */
+ struct list_head i_conn_node;
+ /* The TCM I/O descriptor that is accessed via container_of() */
+ struct se_cmd se_cmd;
+ /* Sense buffer that will be mapped into outgoing status */
+#define ISCSI_SENSE_BUFFER_LEN (TRANSPORT_SENSE_BUFFER + 2)
+ unsigned char sense_buffer[ISCSI_SENSE_BUFFER_LEN];
+
+ u32 padding;
+ u8 pad_bytes[4];
+
+ struct scatterlist *first_data_sg;
+ u32 first_data_sg_off;
+ u32 kmapped_nents;
+ sense_reason_t sense_reason;
+} ____cacheline_aligned;
+
+struct iscsi_tmr_req {
+ bool task_reassign:1;
+ u32 exp_data_sn;
+ struct iscsi_cmd *ref_cmd;
+ struct iscsi_conn_recovery *conn_recovery;
+ struct se_tmr_req *se_tmr_req;
+};
+
+struct iscsi_conn {
+ wait_queue_head_t queues_wq;
+ /* Authentication Successful for this connection */
+ u8 auth_complete;
+ /* State connection is currently in */
+ u8 conn_state;
+ u8 conn_logout_reason;
+ u8 network_transport;
+ enum iscsi_timer_flags_table nopin_timer_flags;
+ enum iscsi_timer_flags_table nopin_response_timer_flags;
+ /* Used to know what thread encountered a transport failure */
+ u8 which_thread;
+ /* connection id assigned by the Initiator */
+ u16 cid;
+ /* Remote TCP Port */
+ u16 login_port;
+ u16 local_port;
+ int net_size;
+ int login_family;
+ u32 auth_id;
+ u32 conn_flags;
+ /* Used for iscsi_tx_login_rsp() */
+ itt_t login_itt;
+ u32 exp_statsn;
+ /* Per connection status sequence number */
+ u32 stat_sn;
+ /* IFMarkInt's Current Value */
+ u32 if_marker;
+ /* OFMarkInt's Current Value */
+ u32 of_marker;
+ /* Used for calculating OFMarker offset to next PDU */
+ u32 of_marker_offset;
+#define IPV6_ADDRESS_SPACE 48
+ unsigned char login_ip[IPV6_ADDRESS_SPACE];
+ unsigned char local_ip[IPV6_ADDRESS_SPACE];
+ int conn_usage_count;
+ int conn_waiting_on_uc;
+ atomic_t check_immediate_queue;
+ atomic_t conn_logout_remove;
+ atomic_t connection_exit;
+ atomic_t connection_recovery;
+ atomic_t connection_reinstatement;
+ atomic_t connection_wait_rcfr;
+ atomic_t sleep_on_conn_wait_comp;
+ atomic_t transport_failed;
+ struct completion conn_post_wait_comp;
+ struct completion conn_wait_comp;
+ struct completion conn_wait_rcfr_comp;
+ struct completion conn_waiting_on_uc_comp;
+ struct completion conn_logout_comp;
+ struct completion tx_half_close_comp;
+ struct completion rx_half_close_comp;
+ /* socket used by this connection */
+ struct socket *sock;
+ void (*orig_data_ready)(struct sock *);
+ void (*orig_state_change)(struct sock *);
+#define LOGIN_FLAGS_READ_ACTIVE 1
+#define LOGIN_FLAGS_CLOSED 2
+#define LOGIN_FLAGS_READY 4
+ unsigned long login_flags;
+ struct delayed_work login_work;
+ struct delayed_work login_cleanup_work;
+ struct iscsi_login *login;
+ struct timer_list nopin_timer;
+ struct timer_list nopin_response_timer;
+ struct timer_list transport_timer;
+ struct task_struct *login_kworker;
+ /* Spinlock used for add/deleting cmd's from conn_cmd_list */
+ spinlock_t cmd_lock;
+ spinlock_t conn_usage_lock;
+ spinlock_t immed_queue_lock;
+ spinlock_t nopin_timer_lock;
+ spinlock_t response_queue_lock;
+ spinlock_t state_lock;
+ /* libcrypto RX and TX contexts for crc32c */
+ struct hash_desc conn_rx_hash;
+ struct hash_desc conn_tx_hash;
+ /* Used for scheduling TX and RX connection kthreads */
+ cpumask_var_t conn_cpumask;
+ unsigned int conn_rx_reset_cpumask:1;
+ unsigned int conn_tx_reset_cpumask:1;
+ /* list_head of struct iscsi_cmd for this connection */
+ struct list_head conn_cmd_list;
+ struct list_head immed_queue_list;
+ struct list_head response_queue_list;
+ struct iscsi_conn_ops *conn_ops;
+ struct iscsi_login *conn_login;
+ struct iscsit_transport *conn_transport;
+ struct iscsi_param_list *param_list;
+ /* Used for per connection auth state machine */
+ void *auth_protocol;
+ void *context;
+ struct iscsi_login_thread_s *login_thread;
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np;
+ /* Pointer to parent session */
+ struct iscsi_session *sess;
+ /* Pointer to thread_set in use for this conn's threads */
+ struct iscsi_thread_set *thread_set;
+ /* list_head for session connection list */
+ struct list_head conn_list;
+} ____cacheline_aligned;
+
+struct iscsi_conn_recovery {
+ u16 cid;
+ u32 cmd_count;
+ u32 maxrecvdatasegmentlength;
+ u32 maxxmitdatasegmentlength;
+ int ready_for_reallegiance;
+ struct list_head conn_recovery_cmd_list;
+ spinlock_t conn_recovery_cmd_lock;
+ struct timer_list time2retain_timer;
+ struct iscsi_session *sess;
+ struct list_head cr_list;
+} ____cacheline_aligned;
+
+struct iscsi_session {
+ u8 initiator_vendor;
+ u8 isid[6];
+ enum iscsi_timer_flags_table time2retain_timer_flags;
+ u8 version_active;
+ u16 cid_called;
+ u16 conn_recovery_count;
+ u16 tsih;
+ /* state session is currently in */
+ u32 session_state;
+ /* session wide counter: initiator assigned task tag */
+ itt_t init_task_tag;
+ /* session wide counter: target assigned task tag */
+ u32 targ_xfer_tag;
+ u32 cmdsn_window;
+
+ /* protects cmdsn values */
+ struct mutex cmdsn_mutex;
+ /* session wide counter: expected command sequence number */
+ u32 exp_cmd_sn;
+ /* session wide counter: maximum allowed command sequence number */
+ u32 max_cmd_sn;
+ struct list_head sess_ooo_cmdsn_list;
+
+ /* LIO specific session ID */
+ u32 sid;
+ char auth_type[8];
+ /* unique within the target */
+ int session_index;
+ /* Used for session reference counting */
+ int session_usage_count;
+ int session_waiting_on_uc;
+ atomic_long_t cmd_pdus;
+ atomic_long_t rsp_pdus;
+ atomic_long_t tx_data_octets;
+ atomic_long_t rx_data_octets;
+ atomic_long_t conn_digest_errors;
+ atomic_long_t conn_timeout_errors;
+ u64 creation_time;
+ /* Number of active connections */
+ atomic_t nconn;
+ atomic_t session_continuation;
+ atomic_t session_fall_back_to_erl0;
+ atomic_t session_logout;
+ atomic_t session_reinstatement;
+ atomic_t session_stop_active;
+ atomic_t sleep_on_sess_wait_comp;
+ /* connection list */
+ struct list_head sess_conn_list;
+ struct list_head cr_active_list;
+ struct list_head cr_inactive_list;
+ spinlock_t conn_lock;
+ spinlock_t cr_a_lock;
+ spinlock_t cr_i_lock;
+ spinlock_t session_usage_lock;
+ spinlock_t ttt_lock;
+ struct completion async_msg_comp;
+ struct completion reinstatement_comp;
+ struct completion session_wait_comp;
+ struct completion session_waiting_on_uc_comp;
+ struct timer_list time2retain_timer;
+ struct iscsi_sess_ops *sess_ops;
+ struct se_session *se_sess;
+ struct iscsi_portal_group *tpg;
+} ____cacheline_aligned;
+
+struct iscsi_login {
+ u8 auth_complete;
+ u8 checked_for_existing;
+ u8 current_stage;
+ u8 leading_connection;
+ u8 first_request;
+ u8 version_min;
+ u8 version_max;
+ u8 login_complete;
+ u8 login_failed;
+ bool zero_tsih;
+ char isid[6];
+ u32 cmd_sn;
+ itt_t init_task_tag;
+ u32 initial_exp_statsn;
+ u32 rsp_length;
+ u16 cid;
+ u16 tsih;
+ char req[ISCSI_HDR_LEN];
+ char rsp[ISCSI_HDR_LEN];
+ char *req_buf;
+ char *rsp_buf;
+ struct iscsi_conn *conn;
+ struct iscsi_np *np;
+} ____cacheline_aligned;
+
+struct iscsi_node_attrib {
+ u32 dataout_timeout;
+ u32 dataout_timeout_retries;
+ u32 default_erl;
+ u32 nopin_timeout;
+ u32 nopin_response_timeout;
+ u32 random_datain_pdu_offsets;
+ u32 random_datain_seq_offsets;
+ u32 random_r2t_offsets;
+ u32 tmr_cold_reset;
+ u32 tmr_warm_reset;
+ struct iscsi_node_acl *nacl;
+};
+
+struct se_dev_entry_s;
+
+struct iscsi_node_auth {
+ enum naf_flags_table naf_flags;
+ int authenticate_target;
+ /* Used for iscsit_global->discovery_auth,
+ * set to zero (auth disabled) by default */
+ int enforce_discovery_auth;
+#define MAX_USER_LEN 256
+#define MAX_PASS_LEN 256
+ char userid[MAX_USER_LEN];
+ char password[MAX_PASS_LEN];
+ char userid_mutual[MAX_USER_LEN];
+ char password_mutual[MAX_PASS_LEN];
+};
+
+#include "iscsi_target_stat.h"
+
+struct iscsi_node_stat_grps {
+ struct config_group iscsi_sess_stats_group;
+ struct config_group iscsi_conn_stats_group;
+};
+
+struct iscsi_node_acl {
+ struct iscsi_node_attrib node_attrib;
+ struct iscsi_node_auth node_auth;
+ struct iscsi_node_stat_grps node_stat_grps;
+ struct se_node_acl se_node_acl;
+};
+
+struct iscsi_tpg_attrib {
+ u32 authentication;
+ u32 login_timeout;
+ u32 netif_timeout;
+ u32 generate_node_acls;
+ u32 cache_dynamic_acls;
+ u32 default_cmdsn_depth;
+ u32 demo_mode_write_protect;
+ u32 prod_mode_write_protect;
+ u32 demo_mode_discovery;
+ u32 default_erl;
+ u8 t10_pi;
+ struct iscsi_portal_group *tpg;
+};
+
+struct iscsi_np {
+ int np_network_transport;
+ int np_ip_proto;
+ int np_sock_type;
+ enum np_thread_state_table np_thread_state;
+ bool enabled;
+ enum iscsi_timer_flags_table np_login_timer_flags;
+ u32 np_exports;
+ enum np_flags_table np_flags;
+ unsigned char np_ip[IPV6_ADDRESS_SPACE];
+ u16 np_port;
+ spinlock_t np_thread_lock;
+ struct completion np_restart_comp;
+ struct socket *np_socket;
+ struct __kernel_sockaddr_storage np_sockaddr;
+ struct task_struct *np_thread;
+ struct timer_list np_login_timer;
+ void *np_context;
+ struct iscsit_transport *np_transport;
+ struct list_head np_list;
+} ____cacheline_aligned;
+
+struct iscsi_tpg_np {
+ struct iscsi_np *tpg_np;
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np_parent;
+ struct list_head tpg_np_list;
+ struct list_head tpg_np_child_list;
+ struct list_head tpg_np_parent_list;
+ struct se_tpg_np se_tpg_np;
+ spinlock_t tpg_np_parent_lock;
+ struct completion tpg_np_comp;
+ struct kref tpg_np_kref;
+};
+
+struct iscsi_portal_group {
+ unsigned char tpg_chap_id;
+ /* TPG State */
+ enum tpg_state_table tpg_state;
+ /* Target Portal Group Tag */
+ u16 tpgt;
+ /* Id assigned to target sessions */
+ u16 ntsih;
+ /* Number of active sessions */
+ u32 nsessions;
+ /* Number of Network Portals available for this TPG */
+ u32 num_tpg_nps;
+ /* Per TPG LIO specific session ID. */
+ u32 sid;
+ /* Spinlock for adding/removing Network Portals */
+ spinlock_t tpg_np_lock;
+ spinlock_t tpg_state_lock;
+ struct se_portal_group tpg_se_tpg;
+ struct mutex tpg_access_lock;
+ struct semaphore np_login_sem;
+ struct iscsi_tpg_attrib tpg_attrib;
+ struct iscsi_node_auth tpg_demo_auth;
+ /* Pointer to default list of iSCSI parameters for TPG */
+ struct iscsi_param_list *param_list;
+ struct iscsi_tiqn *tpg_tiqn;
+ struct list_head tpg_gnp_list;
+ struct list_head tpg_list;
+} ____cacheline_aligned;
+
+struct iscsi_wwn_stat_grps {
+ struct config_group iscsi_stat_group;
+ struct config_group iscsi_instance_group;
+ struct config_group iscsi_sess_err_group;
+ struct config_group iscsi_tgt_attr_group;
+ struct config_group iscsi_login_stats_group;
+ struct config_group iscsi_logout_stats_group;
+};
+
+struct iscsi_tiqn {
+#define ISCSI_IQN_LEN 224
+ unsigned char tiqn[ISCSI_IQN_LEN];
+ enum tiqn_state_table tiqn_state;
+ int tiqn_access_count;
+ u32 tiqn_active_tpgs;
+ u32 tiqn_ntpgs;
+ u32 tiqn_num_tpg_nps;
+ u32 tiqn_nsessions;
+ struct list_head tiqn_list;
+ struct list_head tiqn_tpg_list;
+ spinlock_t tiqn_state_lock;
+ spinlock_t tiqn_tpg_lock;
+ struct se_wwn tiqn_wwn;
+ struct iscsi_wwn_stat_grps tiqn_stat_grps;
+ int tiqn_index;
+ struct iscsi_sess_err_stats sess_err_stats;
+ struct iscsi_login_stats login_stats;
+ struct iscsi_logout_stats logout_stats;
+} ____cacheline_aligned;
+
+struct iscsit_global {
+ /* In core shutdown */
+ u32 in_shutdown;
+ u32 active_ts;
+ /* Unique identifier used for the authentication daemon */
+ u32 auth_id;
+ u32 inactive_ts;
+ /* Thread Set bitmap count */
+ int ts_bitmap_count;
+ /* Thread Set bitmap pointer */
+ unsigned long *ts_bitmap;
+ /* Used for iSCSI discovery session authentication */
+ struct iscsi_node_acl discovery_acl;
+ struct iscsi_portal_group *discovery_tpg;
+};
+
+#endif /* ISCSI_TARGET_CORE_H */
--- /dev/null
+#ifndef ISCSI_TARGET_STAT_H
+#define ISCSI_TARGET_STAT_H
+
+/*
+ * For struct iscsi_tiqn->tiqn_wwn default groups
+ */
+extern struct config_item_type iscsi_stat_instance_cit;
+extern struct config_item_type iscsi_stat_sess_err_cit;
+extern struct config_item_type iscsi_stat_tgt_attr_cit;
+extern struct config_item_type iscsi_stat_login_cit;
+extern struct config_item_type iscsi_stat_logout_cit;
+
+/*
+ * For struct iscsi_session->se_sess default groups
+ */
+extern struct config_item_type iscsi_stat_sess_cit;
+
+/* iSCSI session error types */
+#define ISCSI_SESS_ERR_UNKNOWN 0
+#define ISCSI_SESS_ERR_DIGEST 1
+#define ISCSI_SESS_ERR_CXN_TIMEOUT 2
+#define ISCSI_SESS_ERR_PDU_FORMAT 3
+
+/* iSCSI session error stats */
+struct iscsi_sess_err_stats {
+ spinlock_t lock;
+ u32 digest_errors;
+ u32 cxn_timeout_errors;
+ u32 pdu_format_errors;
+ u32 last_sess_failure_type;
+ char last_sess_fail_rem_name[224];
+} ____cacheline_aligned;
+
+/* iSCSI login failure types (sub oids) */
+#define ISCSI_LOGIN_FAIL_OTHER 2
+#define ISCSI_LOGIN_FAIL_REDIRECT 3
+#define ISCSI_LOGIN_FAIL_AUTHORIZE 4
+#define ISCSI_LOGIN_FAIL_AUTHENTICATE 5
+#define ISCSI_LOGIN_FAIL_NEGOTIATE 6
+
+/* iSCSI login stats */
+struct iscsi_login_stats {
+ spinlock_t lock;
+ u32 accepts;
+ u32 other_fails;
+ u32 redirects;
+ u32 authorize_fails;
+ u32 authenticate_fails;
+ u32 negotiate_fails; /* used for notifications */
+ u64 last_fail_time; /* time stamp (jiffies) */
+ u32 last_fail_type;
+ int last_intr_fail_ip_family;
+ unsigned char last_intr_fail_ip_addr[IPV6_ADDRESS_SPACE];
+ char last_intr_fail_name[224];
+} ____cacheline_aligned;
+
+/* iSCSI logout stats */
+struct iscsi_logout_stats {
+ spinlock_t lock;
+ u32 normal_logouts;
+ u32 abnormal_logouts;
+} ____cacheline_aligned;
+
+#endif /*** ISCSI_TARGET_STAT_H ***/
#include <linux/module.h>
#include <linux/list.h>
-#include "../../../drivers/target/iscsi/iscsi_target_core.h"
+#include "iscsi_target_core.h"
struct iscsit_transport {
#define ISCSIT_TRANSPORT_NAME 16
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff