cregit-Linux how code gets into the kernel

Release 4.11 drivers/target/target_core_xcopy.h

Directory: drivers/target
#include <target/target_core_base.h>


#define XCOPY_HDR_LEN			16

#define XCOPY_TARGET_DESC_LEN		32

#define XCOPY_SEGMENT_DESC_LEN		28

#define XCOPY_NAA_IEEE_REGEX_LEN	16

#define XCOPY_MAX_SECTORS		1024

/*
 * SPC4r37 6.4.6.1
 * Table 150 — CSCD descriptor ID values
 */

#define XCOPY_CSCD_DESC_ID_LIST_OFF_MAX	0x07FF


enum xcopy_origin_list {
	
XCOL_SOURCE_RECV_OP = 0x01,
	
XCOL_DEST_RECV_OP = 0x02,
};

struct xcopy_pt_cmd;


struct xcopy_op {
	
int op_origin;

	
struct se_cmd *xop_se_cmd;
	
struct se_device *src_dev;
	
unsigned char src_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
	
struct se_device *dst_dev;
	
unsigned char dst_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
	
unsigned char local_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN];

	
sector_t src_lba;
	
sector_t dst_lba;
	
unsigned short stdi;
	
unsigned short dtdi;
	
unsigned short nolb;
	
unsigned int dbl;

	
struct xcopy_pt_cmd *src_pt_cmd;
	
struct xcopy_pt_cmd *dst_pt_cmd;

	
u32 xop_data_nents;
	
struct scatterlist *xop_data_sg;
	
struct work_struct xop_work;
};

/*
 * Receive Copy Results Sevice Actions
 */

#define RCR_SA_COPY_STATUS		0x00

#define RCR_SA_RECEIVE_DATA		0x01

#define RCR_SA_OPERATING_PARAMETERS	0x03

#define RCR_SA_FAILED_SEGMENT_DETAILS	0x04

/*
 * Receive Copy Results defs for Operating Parameters
 */

#define RCR_OP_MAX_TARGET_DESC_COUNT	0x2

#define RCR_OP_MAX_SG_DESC_COUNT	0x1

#define RCR_OP_MAX_DESC_LIST_LEN	1024

#define RCR_OP_MAX_SEGMENT_LEN		268435456 
/* 256 MB */

#define RCR_OP_TOTAL_CONCURR_COPIES	0x1 
/* Must be <= 16384 */

#define RCR_OP_MAX_CONCURR_COPIES	0x1 
/* Must be <= 255 */

#define RCR_OP_DATA_SEG_GRAN_LOG2	9 
/* 512 bytes in log 2 */

#define RCR_OP_INLINE_DATA_GRAN_LOG2	9 
/* 512 bytes in log 2 */

#define RCR_OP_HELD_DATA_GRAN_LOG2	9 
/* 512 bytes in log 2 */

extern int target_xcopy_setup_pt(void);
extern void target_xcopy_release_pt(void);
extern sense_reason_t target_do_xcopy(struct se_cmd *);
extern sense_reason_t target_do_receive_copy_results(struct se_cmd *);

Overall Contributors

PersonTokensPropCommitsCommitProp
Nicholas Bellinger21194.62%125.00%
David Disseldorp94.04%250.00%
Bart Van Assche31.35%125.00%
Total223100.00%4100.00%
Directory: drivers/target
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