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 
16 enum xcopy_origin_list {
17 	XCOL_SOURCE_RECV_OP = 0x01,
18 	XCOL_DEST_RECV_OP = 0x02,
19 };
20 
21 struct xcopy_pt_cmd;
22 
23 struct 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 
69 extern int target_xcopy_setup_pt(void);
70 extern void target_xcopy_release_pt(void);
71 extern sense_reason_t target_do_xcopy(struct se_cmd *);
72 extern sense_reason_t target_do_receive_copy_results(struct se_cmd *);
73