1/* SPDX-License-Identifier: GPL-2.0 */
2#include <target/target_core_base.h>
3
4#define XCOPY_HDR_LEN 16
5#define XCOPY_TARGET_DESC_LEN 32
6#define XCOPY_SEGMENT_DESC_LEN 28
7#define XCOPY_NAA_IEEE_REGEX_LEN 16
8#define XCOPY_MAX_SECTORS 1024
9
10/*
11 * SPC4r37 6.4.6.1
12 * Table 150 — CSCD descriptor ID values
13 */
14#define XCOPY_CSCD_DESC_ID_LIST_OFF_MAX 0x07FF
15
16enum xcopy_origin_list {
17 XCOL_SOURCE_RECV_OP = 0x01,
18 XCOL_DEST_RECV_OP = 0x02,
19};
20
21struct xcopy_pt_cmd;
22
23struct xcopy_op {
24 int op_origin;
25
26 struct se_cmd *xop_se_cmd;
27 struct se_device *src_dev;
28 unsigned char src_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
29 struct se_device *dst_dev;
30 unsigned char dst_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
31 unsigned char local_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
32
33 sector_t src_lba;
34 sector_t dst_lba;
35 unsigned short stdi;
36 unsigned short dtdi;
37 unsigned short nolb;
38 unsigned int dbl;
39
40 struct xcopy_pt_cmd *src_pt_cmd;
41 struct xcopy_pt_cmd *dst_pt_cmd;
42
43 u32 xop_data_nents;
44 struct scatterlist *xop_data_sg;
45 struct work_struct xop_work;
46};
47
48/*
49 * Receive Copy Results Sevice Actions
50 */
51#define RCR_SA_COPY_STATUS 0x00
52#define RCR_SA_RECEIVE_DATA 0x01
53#define RCR_SA_OPERATING_PARAMETERS 0x03
54#define RCR_SA_FAILED_SEGMENT_DETAILS 0x04
55
56/*
57 * Receive Copy Results defs for Operating Parameters
58 */
59#define RCR_OP_MAX_TARGET_DESC_COUNT 0x2
60#define RCR_OP_MAX_SG_DESC_COUNT 0x1
61#define RCR_OP_MAX_DESC_LIST_LEN 1024
62#define RCR_OP_MAX_SEGMENT_LEN 268435456 /* 256 MB */
63#define RCR_OP_TOTAL_CONCURR_COPIES 0x1 /* Must be <= 16384 */
64#define RCR_OP_MAX_CONCURR_COPIES 0x1 /* Must be <= 255 */
65#define RCR_OP_DATA_SEG_GRAN_LOG2 9 /* 512 bytes in log 2 */
66#define RCR_OP_INLINE_DATA_GRAN_LOG2 9 /* 512 bytes in log 2 */
67#define RCR_OP_HELD_DATA_GRAN_LOG2 9 /* 512 bytes in log 2 */
68
69extern int target_xcopy_setup_pt(void);
70extern void target_xcopy_release_pt(void);
71extern sense_reason_t target_do_xcopy(struct se_cmd *);
72extern sense_reason_t target_do_receive_copy_results(struct se_cmd *);
73