From: Sagi Grimberg Date: Wed, 7 Jan 2015 12:57:31 +0000 (+0200) Subject: iscsi-target: Move iscsi_target_[core,stat].h under linux include X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=67f091f290d055441db28045703d9b075a2ae051;p=openwrt%2Fstaging%2Fblogic.git iscsi-target: Move iscsi_target_[core,stat].h under linux include Seems strange to see in include/target/iscsi/iscsi_transport.h: include "../../../drivers/target/iscsi/iscsi_target_core.h" Move it to it's natural location. Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 55f6774f706f..dd646c43d16d 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -30,7 +30,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_parameters.h" #include "iscsi_target_seq_pdu_list.h" #include "iscsi_target_tq.h" @@ -45,7 +45,7 @@ #include "iscsi_target_util.h" #include "iscsi_target.h" #include "iscsi_target_device.h" -#include "iscsi_target_stat.h" +#include #include diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index ab4915c0d933..47e249dccb5f 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -22,7 +22,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_nego.h" #include "iscsi_target_auth.h" diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index 526becd763cf..48384b675e62 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -28,7 +28,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_parameters.h" #include "iscsi_target_device.h" #include "iscsi_target_erl0.h" @@ -36,7 +36,7 @@ #include "iscsi_target_tpg.h" #include "iscsi_target_util.h" #include "iscsi_target.h" -#include "iscsi_target_stat.h" +#include #include "iscsi_target_configfs.h" struct target_fabric_configfs *lio_target_fabric_configfs; diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h deleted file mode 100644 index 09a522bae222..000000000000 --- a/drivers/target/iscsi/iscsi_target_core.h +++ /dev/null @@ -1,883 +0,0 @@ -#ifndef ISCSI_TARGET_CORE_H -#define ISCSI_TARGET_CORE_H - -#include -#include -#include -#include -#include -#include -#include - -#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 */ diff --git a/drivers/target/iscsi/iscsi_target_datain_values.c b/drivers/target/iscsi/iscsi_target_datain_values.c index e93d5a7a3f81..fb3b52b124ac 100644 --- a/drivers/target/iscsi/iscsi_target_datain_values.c +++ b/drivers/target/iscsi/iscsi_target_datain_values.c @@ -18,7 +18,7 @@ #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_seq_pdu_list.h" #include "iscsi_target_erl1.h" #include "iscsi_target_util.h" diff --git a/drivers/target/iscsi/iscsi_target_device.c b/drivers/target/iscsi/iscsi_target_device.c index 7087c736daa5..34c3cd1b05ce 100644 --- a/drivers/target/iscsi/iscsi_target_device.c +++ b/drivers/target/iscsi/iscsi_target_device.c @@ -21,7 +21,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_device.h" #include "iscsi_target_tpg.h" #include "iscsi_target_util.h" diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c index a0ae5fc0ad75..bdd8731a4daa 100644 --- a/drivers/target/iscsi/iscsi_target_erl0.c +++ b/drivers/target/iscsi/iscsi_target_erl0.c @@ -21,7 +21,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_seq_pdu_list.h" #include "iscsi_target_tq.h" #include "iscsi_target_erl0.h" diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c index cda4d80cfaef..2e561deb30a2 100644 --- a/drivers/target/iscsi/iscsi_target_erl1.c +++ b/drivers/target/iscsi/iscsi_target_erl1.c @@ -22,7 +22,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_seq_pdu_list.h" #include "iscsi_target_datain_values.h" #include "iscsi_target_device.h" diff --git a/drivers/target/iscsi/iscsi_target_erl2.c b/drivers/target/iscsi/iscsi_target_erl2.c index 4ca8fd2a70db..e24f1c7c5862 100644 --- a/drivers/target/iscsi/iscsi_target_erl2.c +++ b/drivers/target/iscsi/iscsi_target_erl2.c @@ -21,7 +21,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_datain_values.h" #include "iscsi_target_util.h" #include "iscsi_target_erl0.h" diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 713c0c1877ab..153fb66ac1b8 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -24,14 +24,14 @@ #include #include -#include "iscsi_target_core.h" +#include +#include #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" diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index 62a095f36bf2..8c02fa34716f 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -22,7 +22,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_parameters.h" #include "iscsi_target_login.h" #include "iscsi_target_nego.h" diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.c b/drivers/target/iscsi/iscsi_target_nodeattrib.c index 16454a922e2b..208cca8a363c 100644 --- a/drivers/target/iscsi/iscsi_target_nodeattrib.c +++ b/drivers/target/iscsi/iscsi_target_nodeattrib.c @@ -18,7 +18,7 @@ #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_device.h" #include "iscsi_target_tpg.h" #include "iscsi_target_util.h" diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c index 18c29260b4a2..d4f9e9645697 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.c +++ b/drivers/target/iscsi/iscsi_target_parameters.c @@ -18,7 +18,7 @@ #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_util.h" #include "iscsi_target_parameters.h" diff --git a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c index ca41b583f2f6..e446a09c886b 100644 --- a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c +++ b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c @@ -20,7 +20,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_util.h" #include "iscsi_target_tpg.h" #include "iscsi_target_seq_pdu_list.h" diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c index 103395510307..5e1349a3b143 100644 --- a/drivers/target/iscsi/iscsi_target_stat.c +++ b/drivers/target/iscsi/iscsi_target_stat.c @@ -23,12 +23,12 @@ #include #include -#include "iscsi_target_core.h" +#include #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 #ifndef INITIAL_JIFFIES #define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) diff --git a/drivers/target/iscsi/iscsi_target_stat.h b/drivers/target/iscsi/iscsi_target_stat.h deleted file mode 100644 index 3ff76b4faad3..000000000000 --- a/drivers/target/iscsi/iscsi_target_stat.h +++ /dev/null @@ -1,64 +0,0 @@ -#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 ***/ diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c index 78404b1cc0bf..b0224a77e26d 100644 --- a/drivers/target/iscsi/iscsi_target_tmr.c +++ b/drivers/target/iscsi/iscsi_target_tmr.c @@ -23,7 +23,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_seq_pdu_list.h" #include "iscsi_target_datain_values.h" #include "iscsi_target_device.h" diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 9053a3c0c6e5..bdd127c0e3ae 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -20,7 +20,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_erl0.h" #include "iscsi_target_login.h" #include "iscsi_target_nodeattrib.h" diff --git a/drivers/target/iscsi/iscsi_target_tq.c b/drivers/target/iscsi/iscsi_target_tq.c index 601e9cc61e98..18e1971b54f8 100644 --- a/drivers/target/iscsi/iscsi_target_tq.c +++ b/drivers/target/iscsi/iscsi_target_tq.c @@ -20,7 +20,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_tq.h" #include "iscsi_target.h" diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index bcd88ec99793..70f57c192415 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -25,7 +25,7 @@ #include #include -#include "iscsi_target_core.h" +#include #include "iscsi_target_parameters.h" #include "iscsi_target_seq_pdu_list.h" #include "iscsi_target_datain_values.h" diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h new file mode 100644 index 000000000000..09a522bae222 --- /dev/null +++ b/include/target/iscsi/iscsi_target_core.h @@ -0,0 +1,883 @@ +#ifndef ISCSI_TARGET_CORE_H +#define ISCSI_TARGET_CORE_H + +#include +#include +#include +#include +#include +#include +#include + +#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 */ diff --git a/include/target/iscsi/iscsi_target_stat.h b/include/target/iscsi/iscsi_target_stat.h new file mode 100644 index 000000000000..3ff76b4faad3 --- /dev/null +++ b/include/target/iscsi/iscsi_target_stat.h @@ -0,0 +1,64 @@ +#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 ***/ diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h index daef9daa500c..e6bb166f12c2 100644 --- a/include/target/iscsi/iscsi_transport.h +++ b/include/target/iscsi/iscsi_transport.h @@ -1,6 +1,6 @@ #include #include -#include "../../../drivers/target/iscsi/iscsi_target_core.h" +#include "iscsi_target_core.h" struct iscsit_transport { #define ISCSIT_TRANSPORT_NAME 16