1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #include "iscsi_target_core.h" /* struct iscsi_cmd */
3*4882a593Smuzhiyun
4*4882a593Smuzhiyun struct sockaddr_storage;
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun struct iscsit_transport {
7*4882a593Smuzhiyun #define ISCSIT_TRANSPORT_NAME 16
8*4882a593Smuzhiyun char name[ISCSIT_TRANSPORT_NAME];
9*4882a593Smuzhiyun int transport_type;
10*4882a593Smuzhiyun bool rdma_shutdown;
11*4882a593Smuzhiyun int priv_size;
12*4882a593Smuzhiyun struct module *owner;
13*4882a593Smuzhiyun struct list_head t_node;
14*4882a593Smuzhiyun int (*iscsit_setup_np)(struct iscsi_np *, struct sockaddr_storage *);
15*4882a593Smuzhiyun int (*iscsit_accept_np)(struct iscsi_np *, struct iscsi_conn *);
16*4882a593Smuzhiyun void (*iscsit_free_np)(struct iscsi_np *);
17*4882a593Smuzhiyun void (*iscsit_wait_conn)(struct iscsi_conn *);
18*4882a593Smuzhiyun void (*iscsit_free_conn)(struct iscsi_conn *);
19*4882a593Smuzhiyun int (*iscsit_get_login_rx)(struct iscsi_conn *, struct iscsi_login *);
20*4882a593Smuzhiyun int (*iscsit_put_login_tx)(struct iscsi_conn *, struct iscsi_login *, u32);
21*4882a593Smuzhiyun int (*iscsit_immediate_queue)(struct iscsi_conn *, struct iscsi_cmd *, int);
22*4882a593Smuzhiyun int (*iscsit_response_queue)(struct iscsi_conn *, struct iscsi_cmd *, int);
23*4882a593Smuzhiyun int (*iscsit_get_dataout)(struct iscsi_conn *, struct iscsi_cmd *, bool);
24*4882a593Smuzhiyun int (*iscsit_queue_data_in)(struct iscsi_conn *, struct iscsi_cmd *);
25*4882a593Smuzhiyun int (*iscsit_queue_status)(struct iscsi_conn *, struct iscsi_cmd *);
26*4882a593Smuzhiyun void (*iscsit_aborted_task)(struct iscsi_conn *, struct iscsi_cmd *);
27*4882a593Smuzhiyun int (*iscsit_xmit_pdu)(struct iscsi_conn *, struct iscsi_cmd *,
28*4882a593Smuzhiyun struct iscsi_datain_req *, const void *, u32);
29*4882a593Smuzhiyun void (*iscsit_unmap_cmd)(struct iscsi_conn *, struct iscsi_cmd *);
30*4882a593Smuzhiyun void (*iscsit_get_rx_pdu)(struct iscsi_conn *);
31*4882a593Smuzhiyun int (*iscsit_validate_params)(struct iscsi_conn *);
32*4882a593Smuzhiyun void (*iscsit_get_r2t_ttt)(struct iscsi_conn *, struct iscsi_cmd *,
33*4882a593Smuzhiyun struct iscsi_r2t *);
34*4882a593Smuzhiyun enum target_prot_op (*iscsit_get_sup_prot_ops)(struct iscsi_conn *);
35*4882a593Smuzhiyun };
36*4882a593Smuzhiyun
iscsit_priv_cmd(struct iscsi_cmd * cmd)37*4882a593Smuzhiyun static inline void *iscsit_priv_cmd(struct iscsi_cmd *cmd)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun return (void *)(cmd + 1);
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun /*
43*4882a593Smuzhiyun * From iscsi_target_transport.c
44*4882a593Smuzhiyun */
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun extern void iscsit_register_transport(struct iscsit_transport *);
47*4882a593Smuzhiyun extern void iscsit_unregister_transport(struct iscsit_transport *);
48*4882a593Smuzhiyun extern struct iscsit_transport *iscsit_get_transport(int);
49*4882a593Smuzhiyun extern void iscsit_put_transport(struct iscsit_transport *);
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun /*
52*4882a593Smuzhiyun * From iscsi_target.c
53*4882a593Smuzhiyun */
54*4882a593Smuzhiyun extern int iscsit_setup_scsi_cmd(struct iscsi_conn *, struct iscsi_cmd *,
55*4882a593Smuzhiyun unsigned char *);
56*4882a593Smuzhiyun extern void iscsit_set_unsolicited_dataout(struct iscsi_cmd *);
57*4882a593Smuzhiyun extern int iscsit_process_scsi_cmd(struct iscsi_conn *, struct iscsi_cmd *,
58*4882a593Smuzhiyun struct iscsi_scsi_req *);
59*4882a593Smuzhiyun extern int
60*4882a593Smuzhiyun __iscsit_check_dataout_hdr(struct iscsi_conn *, void *,
61*4882a593Smuzhiyun struct iscsi_cmd *, u32, bool *);
62*4882a593Smuzhiyun extern int
63*4882a593Smuzhiyun iscsit_check_dataout_hdr(struct iscsi_conn *conn, void *buf,
64*4882a593Smuzhiyun struct iscsi_cmd **out_cmd);
65*4882a593Smuzhiyun extern int iscsit_check_dataout_payload(struct iscsi_cmd *, struct iscsi_data *,
66*4882a593Smuzhiyun bool);
67*4882a593Smuzhiyun extern int iscsit_setup_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
68*4882a593Smuzhiyun struct iscsi_nopout *);
69*4882a593Smuzhiyun extern int iscsit_process_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
70*4882a593Smuzhiyun struct iscsi_nopout *);
71*4882a593Smuzhiyun extern int iscsit_handle_logout_cmd(struct iscsi_conn *, struct iscsi_cmd *,
72*4882a593Smuzhiyun unsigned char *);
73*4882a593Smuzhiyun extern int iscsit_handle_task_mgt_cmd(struct iscsi_conn *, struct iscsi_cmd *,
74*4882a593Smuzhiyun unsigned char *);
75*4882a593Smuzhiyun extern int iscsit_setup_text_cmd(struct iscsi_conn *, struct iscsi_cmd *,
76*4882a593Smuzhiyun struct iscsi_text *);
77*4882a593Smuzhiyun extern int iscsit_process_text_cmd(struct iscsi_conn *, struct iscsi_cmd *,
78*4882a593Smuzhiyun struct iscsi_text *);
79*4882a593Smuzhiyun extern void iscsit_build_rsp_pdu(struct iscsi_cmd *, struct iscsi_conn *,
80*4882a593Smuzhiyun bool, struct iscsi_scsi_rsp *);
81*4882a593Smuzhiyun extern void iscsit_build_nopin_rsp(struct iscsi_cmd *, struct iscsi_conn *,
82*4882a593Smuzhiyun struct iscsi_nopin *, bool);
83*4882a593Smuzhiyun extern void iscsit_build_task_mgt_rsp(struct iscsi_cmd *, struct iscsi_conn *,
84*4882a593Smuzhiyun struct iscsi_tm_rsp *);
85*4882a593Smuzhiyun extern int iscsit_build_text_rsp(struct iscsi_cmd *, struct iscsi_conn *,
86*4882a593Smuzhiyun struct iscsi_text_rsp *,
87*4882a593Smuzhiyun enum iscsit_transport_type);
88*4882a593Smuzhiyun extern void iscsit_build_reject(struct iscsi_cmd *, struct iscsi_conn *,
89*4882a593Smuzhiyun struct iscsi_reject *);
90*4882a593Smuzhiyun extern int iscsit_build_logout_rsp(struct iscsi_cmd *, struct iscsi_conn *,
91*4882a593Smuzhiyun struct iscsi_logout_rsp *);
92*4882a593Smuzhiyun extern int iscsit_logout_post_handler(struct iscsi_cmd *, struct iscsi_conn *);
93*4882a593Smuzhiyun extern int iscsit_queue_rsp(struct iscsi_conn *, struct iscsi_cmd *);
94*4882a593Smuzhiyun extern void iscsit_aborted_task(struct iscsi_conn *, struct iscsi_cmd *);
95*4882a593Smuzhiyun extern int iscsit_add_reject(struct iscsi_conn *, u8, unsigned char *);
96*4882a593Smuzhiyun extern int iscsit_reject_cmd(struct iscsi_cmd *, u8, unsigned char *);
97*4882a593Smuzhiyun extern int iscsit_handle_snack(struct iscsi_conn *, unsigned char *);
98*4882a593Smuzhiyun extern void iscsit_build_datain_pdu(struct iscsi_cmd *, struct iscsi_conn *,
99*4882a593Smuzhiyun struct iscsi_datain *,
100*4882a593Smuzhiyun struct iscsi_data_rsp *, bool);
101*4882a593Smuzhiyun extern int iscsit_build_r2ts_for_cmd(struct iscsi_conn *, struct iscsi_cmd *,
102*4882a593Smuzhiyun bool);
103*4882a593Smuzhiyun extern int iscsit_immediate_queue(struct iscsi_conn *, struct iscsi_cmd *, int);
104*4882a593Smuzhiyun extern int iscsit_response_queue(struct iscsi_conn *, struct iscsi_cmd *, int);
105*4882a593Smuzhiyun /*
106*4882a593Smuzhiyun * From iscsi_target_device.c
107*4882a593Smuzhiyun */
108*4882a593Smuzhiyun extern void iscsit_increment_maxcmdsn(struct iscsi_cmd *, struct iscsi_session *);
109*4882a593Smuzhiyun /*
110*4882a593Smuzhiyun * From iscsi_target_erl0.c
111*4882a593Smuzhiyun */
112*4882a593Smuzhiyun extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int);
113*4882a593Smuzhiyun /*
114*4882a593Smuzhiyun * From iscsi_target_erl1.c
115*4882a593Smuzhiyun */
116*4882a593Smuzhiyun extern void iscsit_stop_dataout_timer(struct iscsi_cmd *);
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun /*
119*4882a593Smuzhiyun * From iscsi_target_tmr.c
120*4882a593Smuzhiyun */
121*4882a593Smuzhiyun extern int iscsit_tmr_post_handler(struct iscsi_cmd *, struct iscsi_conn *);
122*4882a593Smuzhiyun
123*4882a593Smuzhiyun /*
124*4882a593Smuzhiyun * From iscsi_target_util.c
125*4882a593Smuzhiyun */
126*4882a593Smuzhiyun extern struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *, int);
127*4882a593Smuzhiyun extern int iscsit_sequence_cmd(struct iscsi_conn *, struct iscsi_cmd *,
128*4882a593Smuzhiyun unsigned char *, __be32);
129*4882a593Smuzhiyun extern void iscsit_release_cmd(struct iscsi_cmd *);
130*4882a593Smuzhiyun extern void iscsit_free_cmd(struct iscsi_cmd *, bool);
131*4882a593Smuzhiyun extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *,
132*4882a593Smuzhiyun struct iscsi_conn *, u8);
133*4882a593Smuzhiyun extern struct iscsi_cmd *
134*4882a593Smuzhiyun iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *conn,
135*4882a593Smuzhiyun itt_t init_task_tag, u32 length);
136*4882a593Smuzhiyun
137*4882a593Smuzhiyun /*
138*4882a593Smuzhiyun * From iscsi_target_nego.c
139*4882a593Smuzhiyun */
140*4882a593Smuzhiyun extern int iscsi_target_check_login_request(struct iscsi_conn *,
141*4882a593Smuzhiyun struct iscsi_login *);
142*4882a593Smuzhiyun
143*4882a593Smuzhiyun /*
144*4882a593Smuzhiyun * From iscsi_target_login.c
145*4882a593Smuzhiyun */
146*4882a593Smuzhiyun extern __printf(2, 3) int iscsi_change_param_sprintf(
147*4882a593Smuzhiyun struct iscsi_conn *, const char *, ...);
148*4882a593Smuzhiyun
149*4882a593Smuzhiyun /*
150*4882a593Smuzhiyun * From iscsi_target_parameters.c
151*4882a593Smuzhiyun */
152*4882a593Smuzhiyun extern struct iscsi_param *iscsi_find_param_from_key(
153*4882a593Smuzhiyun char *, struct iscsi_param_list *);
154