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		4096
 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_op {
22	int op_origin;
23
24	struct se_cmd *xop_se_cmd;
25	struct se_device *src_dev;
26	unsigned char src_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
27	struct se_device *dst_dev;
28	unsigned char dst_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
29	unsigned char local_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
30
31	sector_t src_lba;
32	sector_t dst_lba;
33	unsigned short stdi;
34	unsigned short dtdi;
35	unsigned short nolb;
 
 
 
 
36
37	u32 xop_data_bytes;
38	u32 xop_data_nents;
39	struct scatterlist *xop_data_sg;
40	struct work_struct xop_work;
41};
42
43/*
44 * Receive Copy Results Sevice Actions
45 */
46#define RCR_SA_COPY_STATUS		0x00
47#define RCR_SA_RECEIVE_DATA		0x01
48#define RCR_SA_OPERATING_PARAMETERS	0x03
49#define RCR_SA_FAILED_SEGMENT_DETAILS	0x04
50
51/*
52 * Receive Copy Results defs for Operating Parameters
53 */
54#define RCR_OP_MAX_TARGET_DESC_COUNT	0x2
55#define RCR_OP_MAX_SG_DESC_COUNT	0x1
56#define RCR_OP_MAX_DESC_LIST_LEN	1024
57#define RCR_OP_MAX_SEGMENT_LEN		268435456 /* 256 MB */
58#define RCR_OP_TOTAL_CONCURR_COPIES	0x1 /* Must be <= 16384 */
59#define RCR_OP_MAX_CONCURR_COPIES	0x1 /* Must be <= 255 */
60#define RCR_OP_DATA_SEG_GRAN_LOG2	9 /* 512 bytes in log 2 */
61#define RCR_OP_INLINE_DATA_GRAN_LOG2	9 /* 512 bytes in log 2 */
62#define RCR_OP_HELD_DATA_GRAN_LOG2	9 /* 512 bytes in log 2 */
63
64extern int target_xcopy_setup_pt(void);
65extern void target_xcopy_release_pt(void);
66extern sense_reason_t target_do_xcopy(struct se_cmd *);
67extern sense_reason_t target_do_receive_copy_results(struct se_cmd *);

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