/
iscsi_target_seq_pdu_list.h
86 lines (73 loc) · 2.07 KB
/
iscsi_target_seq_pdu_list.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
#ifndef ISCSI_SEQ_AND_PDU_LIST_H
#define ISCSI_SEQ_AND_PDU_LIST_H
/* struct iscsi_pdu->status */
#define DATAOUT_PDU_SENT 1
/* struct iscsi_seq->type */
#define SEQTYPE_IMMEDIATE 1
#define SEQTYPE_UNSOLICITED 2
#define SEQTYPE_NORMAL 3
/* struct iscsi_seq->status */
#define DATAOUT_SEQUENCE_GOT_R2T 1
#define DATAOUT_SEQUENCE_WITHIN_COMMAND_RECOVERY 2
#define DATAOUT_SEQUENCE_COMPLETE 3
/* iscsi_determine_counts_for_list() type */
#define PDULIST_NORMAL 1
#define PDULIST_IMMEDIATE 2
#define PDULIST_UNSOLICITED 3
#define PDULIST_IMMEDIATE_AND_UNSOLICITED 4
/* struct iscsi_pdu->type */
#define PDUTYPE_IMMEDIATE 1
#define PDUTYPE_UNSOLICITED 2
#define PDUTYPE_NORMAL 3
/* struct iscsi_pdu->status */
#define ISCSI_PDU_NOT_RECEIVED 0
#define ISCSI_PDU_RECEIVED_OK 1
#define ISCSI_PDU_CRC_FAILED 2
#define ISCSI_PDU_TIMED_OUT 3
/* struct iscsi_build_list->randomize */
#define RANDOM_DATAIN_PDU_OFFSETS 0x01
#define RANDOM_DATAIN_SEQ_OFFSETS 0x02
#define RANDOM_DATAOUT_PDU_OFFSETS 0x04
#define RANDOM_R2T_OFFSETS 0x08
/* struct iscsi_build_list->data_direction */
#define ISCSI_PDU_READ 0x01
#define ISCSI_PDU_WRITE 0x02
struct iscsi_build_list {
int data_direction;
int randomize;
int type;
int immediate_data_length;
};
struct iscsi_pdu {
int status;
int type;
u8 flags;
u32 data_sn;
u32 length;
u32 offset;
u32 pdu_send_order;
u32 seq_no;
} ____cacheline_aligned;
struct iscsi_seq {
int sent;
int status;
int type;
u32 data_sn;
u32 first_datasn;
u32 last_datasn;
u32 next_burst_len;
u32 pdu_start;
u32 pdu_count;
u32 offset;
u32 orig_offset;
u32 pdu_send_order;
u32 r2t_sn;
u32 seq_send_order;
u32 seq_no;
u32 xfer_len;
} ____cacheline_aligned;
extern int iscsit_build_pdu_and_seq_lists(struct iscsi_cmd *, u32);
extern struct iscsi_pdu *iscsit_get_pdu_holder(struct iscsi_cmd *, u32, u32);
extern struct iscsi_pdu *iscsit_get_pdu_holder_for_seq(struct iscsi_cmd *, struct iscsi_seq *);
extern struct iscsi_seq *iscsit_get_seq_holder(struct iscsi_cmd *, u32, u32);
#endif /* ISCSI_SEQ_AND_PDU_LIST_H */