1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 28dcf07beSBart Van Assche #include "iscsi_target_core.h" /* struct iscsi_cmd */ 38dcf07beSBart Van Assche 48dcf07beSBart Van Assche struct sockaddr_storage; 53f993063SNicholas Bellinger 63f993063SNicholas Bellinger struct iscsit_transport { 73f993063SNicholas Bellinger #define ISCSIT_TRANSPORT_NAME 16 83f993063SNicholas Bellinger char name[ISCSIT_TRANSPORT_NAME]; 93f993063SNicholas Bellinger int transport_type; 10bd027d85SNicholas Bellinger bool rdma_shutdown; 11d703ce2fSNicholas Bellinger int priv_size; 123f993063SNicholas Bellinger struct module *owner; 133f993063SNicholas Bellinger struct list_head t_node; 1413a3cf08SAndy Grover int (*iscsit_setup_np)(struct iscsi_np *, struct sockaddr_storage *); 153f993063SNicholas Bellinger int (*iscsit_accept_np)(struct iscsi_np *, struct iscsi_conn *); 163f993063SNicholas Bellinger void (*iscsit_free_np)(struct iscsi_np *); 17defd8848SNicholas Bellinger void (*iscsit_wait_conn)(struct iscsi_conn *); 183f993063SNicholas Bellinger void (*iscsit_free_conn)(struct iscsi_conn *); 193f993063SNicholas Bellinger int (*iscsit_get_login_rx)(struct iscsi_conn *, struct iscsi_login *); 203f993063SNicholas Bellinger int (*iscsit_put_login_tx)(struct iscsi_conn *, struct iscsi_login *, u32); 213f993063SNicholas Bellinger int (*iscsit_immediate_queue)(struct iscsi_conn *, struct iscsi_cmd *, int); 223f993063SNicholas Bellinger int (*iscsit_response_queue)(struct iscsi_conn *, struct iscsi_cmd *, int); 233f993063SNicholas Bellinger int (*iscsit_get_dataout)(struct iscsi_conn *, struct iscsi_cmd *, bool); 243f993063SNicholas Bellinger int (*iscsit_queue_data_in)(struct iscsi_conn *, struct iscsi_cmd *); 253f993063SNicholas Bellinger int (*iscsit_queue_status)(struct iscsi_conn *, struct iscsi_cmd *); 26131e6abcSNicholas Bellinger void (*iscsit_aborted_task)(struct iscsi_conn *, struct iscsi_cmd *); 272854bb23SVarun Prakash int (*iscsit_xmit_pdu)(struct iscsi_conn *, struct iscsi_cmd *, 282854bb23SVarun Prakash struct iscsi_datain_req *, const void *, u32); 291e65cc16SBart Van Assche void (*iscsit_unmap_cmd)(struct iscsi_conn *, struct iscsi_cmd *); 30187e84f7SVarun Prakash void (*iscsit_get_rx_pdu)(struct iscsi_conn *); 3142bc3e57SVarun Prakash int (*iscsit_validate_params)(struct iscsi_conn *); 328567270dSVarun Prakash void (*iscsit_get_r2t_ttt)(struct iscsi_conn *, struct iscsi_cmd *, 338567270dSVarun Prakash struct iscsi_r2t *); 34e70beee7SNicholas Bellinger enum target_prot_op (*iscsit_get_sup_prot_ops)(struct iscsi_conn *); 353f993063SNicholas Bellinger }; 363f993063SNicholas Bellinger 37d703ce2fSNicholas Bellinger static inline void *iscsit_priv_cmd(struct iscsi_cmd *cmd) 38d703ce2fSNicholas Bellinger { 39d703ce2fSNicholas Bellinger return (void *)(cmd + 1); 40d703ce2fSNicholas Bellinger } 41d703ce2fSNicholas Bellinger 423f993063SNicholas Bellinger /* 433f993063SNicholas Bellinger * From iscsi_target_transport.c 443f993063SNicholas Bellinger */ 453f993063SNicholas Bellinger 46a8ac7835SMax Gurtovoy extern void iscsit_register_transport(struct iscsit_transport *); 473f993063SNicholas Bellinger extern void iscsit_unregister_transport(struct iscsit_transport *); 483f993063SNicholas Bellinger extern struct iscsit_transport *iscsit_get_transport(int); 493f993063SNicholas Bellinger extern void iscsit_put_transport(struct iscsit_transport *); 503f993063SNicholas Bellinger 513f993063SNicholas Bellinger /* 523f993063SNicholas Bellinger * From iscsi_target.c 533f993063SNicholas Bellinger */ 543f993063SNicholas Bellinger extern int iscsit_setup_scsi_cmd(struct iscsi_conn *, struct iscsi_cmd *, 553f993063SNicholas Bellinger unsigned char *); 560300b114SBart Van Assche extern void iscsit_set_unsolicited_dataout(struct iscsi_cmd *); 573f993063SNicholas Bellinger extern int iscsit_process_scsi_cmd(struct iscsi_conn *, struct iscsi_cmd *, 583f993063SNicholas Bellinger struct iscsi_scsi_req *); 599a584bf9SVarun Prakash extern int 609a584bf9SVarun Prakash __iscsit_check_dataout_hdr(struct iscsi_conn *, void *, 619a584bf9SVarun Prakash struct iscsi_cmd *, u32, bool *); 629a584bf9SVarun Prakash extern int 639a584bf9SVarun Prakash iscsit_check_dataout_hdr(struct iscsi_conn *conn, void *buf, 649a584bf9SVarun Prakash struct iscsi_cmd **out_cmd); 653f993063SNicholas Bellinger extern int iscsit_check_dataout_payload(struct iscsi_cmd *, struct iscsi_data *, 663f993063SNicholas Bellinger bool); 67778de368SNicholas Bellinger extern int iscsit_setup_nop_out(struct iscsi_conn *, struct iscsi_cmd *, 68778de368SNicholas Bellinger struct iscsi_nopout *); 69778de368SNicholas Bellinger extern int iscsit_process_nop_out(struct iscsi_conn *, struct iscsi_cmd *, 70778de368SNicholas Bellinger struct iscsi_nopout *); 713f993063SNicholas Bellinger extern int iscsit_handle_logout_cmd(struct iscsi_conn *, struct iscsi_cmd *, 723f993063SNicholas Bellinger unsigned char *); 733f993063SNicholas Bellinger extern int iscsit_handle_task_mgt_cmd(struct iscsi_conn *, struct iscsi_cmd *, 743f993063SNicholas Bellinger unsigned char *); 7564534aa7SNicholas Bellinger extern int iscsit_setup_text_cmd(struct iscsi_conn *, struct iscsi_cmd *, 7664534aa7SNicholas Bellinger struct iscsi_text *); 7764534aa7SNicholas Bellinger extern int iscsit_process_text_cmd(struct iscsi_conn *, struct iscsi_cmd *, 7864534aa7SNicholas Bellinger struct iscsi_text *); 793f993063SNicholas Bellinger extern void iscsit_build_rsp_pdu(struct iscsi_cmd *, struct iscsi_conn *, 803f993063SNicholas Bellinger bool, struct iscsi_scsi_rsp *); 813f993063SNicholas Bellinger extern void iscsit_build_nopin_rsp(struct iscsi_cmd *, struct iscsi_conn *, 823f993063SNicholas Bellinger struct iscsi_nopin *, bool); 833f993063SNicholas Bellinger extern void iscsit_build_task_mgt_rsp(struct iscsi_cmd *, struct iscsi_conn *, 843f993063SNicholas Bellinger struct iscsi_tm_rsp *); 85889c8a68SNicholas Bellinger extern int iscsit_build_text_rsp(struct iscsi_cmd *, struct iscsi_conn *, 8622c7aaa5SSagi Grimberg struct iscsi_text_rsp *, 8722c7aaa5SSagi Grimberg enum iscsit_transport_type); 883f993063SNicholas Bellinger extern void iscsit_build_reject(struct iscsi_cmd *, struct iscsi_conn *, 893f993063SNicholas Bellinger struct iscsi_reject *); 903f993063SNicholas Bellinger extern int iscsit_build_logout_rsp(struct iscsi_cmd *, struct iscsi_conn *, 913f993063SNicholas Bellinger struct iscsi_logout_rsp *); 923f993063SNicholas Bellinger extern int iscsit_logout_post_handler(struct iscsi_cmd *, struct iscsi_conn *); 93d2faaefbSVarun Prakash extern int iscsit_queue_rsp(struct iscsi_conn *, struct iscsi_cmd *); 94d2faaefbSVarun Prakash extern void iscsit_aborted_task(struct iscsi_conn *, struct iscsi_cmd *); 95d2faaefbSVarun Prakash extern int iscsit_add_reject(struct iscsi_conn *, u8, unsigned char *); 96d2faaefbSVarun Prakash extern int iscsit_reject_cmd(struct iscsi_cmd *, u8, unsigned char *); 97d2faaefbSVarun Prakash extern int iscsit_handle_snack(struct iscsi_conn *, unsigned char *); 98d2faaefbSVarun Prakash extern void iscsit_build_datain_pdu(struct iscsi_cmd *, struct iscsi_conn *, 99d2faaefbSVarun Prakash struct iscsi_datain *, 100d2faaefbSVarun Prakash struct iscsi_data_rsp *, bool); 101d2faaefbSVarun Prakash extern int iscsit_build_r2ts_for_cmd(struct iscsi_conn *, struct iscsi_cmd *, 102d2faaefbSVarun Prakash bool); 103d2faaefbSVarun Prakash extern int iscsit_immediate_queue(struct iscsi_conn *, struct iscsi_cmd *, int); 104d2faaefbSVarun Prakash extern int iscsit_response_queue(struct iscsi_conn *, struct iscsi_cmd *, int); 1053f993063SNicholas Bellinger /* 1063f993063SNicholas Bellinger * From iscsi_target_device.c 1073f993063SNicholas Bellinger */ 1083f993063SNicholas Bellinger extern void iscsit_increment_maxcmdsn(struct iscsi_cmd *, struct iscsi_session *); 1093f993063SNicholas Bellinger /* 110b2cb9649SNicholas Bellinger * From iscsi_target_erl0.c 111b2cb9649SNicholas Bellinger */ 112b2cb9649SNicholas Bellinger extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int); 113b2cb9649SNicholas Bellinger /* 1143f993063SNicholas Bellinger * From iscsi_target_erl1.c 1153f993063SNicholas Bellinger */ 1163f993063SNicholas Bellinger extern void iscsit_stop_dataout_timer(struct iscsi_cmd *); 1173f993063SNicholas Bellinger 1183f993063SNicholas Bellinger /* 1193f993063SNicholas Bellinger * From iscsi_target_tmr.c 1203f993063SNicholas Bellinger */ 1213f993063SNicholas Bellinger extern int iscsit_tmr_post_handler(struct iscsi_cmd *, struct iscsi_conn *); 1223f993063SNicholas Bellinger 1233f993063SNicholas Bellinger /* 1243f993063SNicholas Bellinger * From iscsi_target_util.c 1253f993063SNicholas Bellinger */ 126676687c6SNicholas Bellinger extern struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *, int); 127561bf158SNicholas Bellinger extern int iscsit_sequence_cmd(struct iscsi_conn *, struct iscsi_cmd *, 128561bf158SNicholas Bellinger unsigned char *, __be32); 129d703ce2fSNicholas Bellinger extern void iscsit_release_cmd(struct iscsi_cmd *); 130d2faaefbSVarun Prakash extern void iscsit_free_cmd(struct iscsi_cmd *, bool); 131d2faaefbSVarun Prakash extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *, 132d2faaefbSVarun Prakash struct iscsi_conn *, u8); 1339a584bf9SVarun Prakash extern struct iscsi_cmd * 1349a584bf9SVarun Prakash iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *conn, 1359a584bf9SVarun Prakash itt_t init_task_tag, u32 length); 136d2faaefbSVarun Prakash 137d2faaefbSVarun Prakash /* 138d2faaefbSVarun Prakash * From iscsi_target_nego.c 139d2faaefbSVarun Prakash */ 140d2faaefbSVarun Prakash extern int iscsi_target_check_login_request(struct iscsi_conn *, 141d2faaefbSVarun Prakash struct iscsi_login *); 142d2faaefbSVarun Prakash 143d2faaefbSVarun Prakash /* 144d2faaefbSVarun Prakash * From iscsi_target_login.c 145d2faaefbSVarun Prakash */ 146d2faaefbSVarun Prakash extern __printf(2, 3) int iscsi_change_param_sprintf( 147d2faaefbSVarun Prakash struct iscsi_conn *, const char *, ...); 148d2faaefbSVarun Prakash 149d2faaefbSVarun Prakash /* 150d2faaefbSVarun Prakash * From iscsi_target_parameters.c 151d2faaefbSVarun Prakash */ 152d2faaefbSVarun Prakash extern struct iscsi_param *iscsi_find_param_from_key( 153d2faaefbSVarun Prakash char *, struct iscsi_param_list *); 154