[linux-2.6-block.git] / drivers / target / target_core_xcopy.h

#define XCOPY_TARGET_DESC_LEN		32
#define XCOPY_SEGMENT_DESC_LEN		28
#define XCOPY_NAA_IEEE_REGEX_LEN	16
#define XCOPY_MAX_SECTORS		1024

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 *);
Commit	Line	Data
cbf031f4 NB	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
	6	enum xcopy_origin_list {
	7	XCOL_SOURCE_RECV_OP = 0x01,
	8	XCOL_DEST_RECV_OP = 0x02,
	9	};
	10
	11	struct xcopy_pt_cmd;
	12
	13	struct 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
	59	extern int target_xcopy_setup_pt(void);
	60	extern void target_xcopy_release_pt(void);
	61	extern sense_reason_t target_do_xcopy(struct se_cmd *);
	62	extern sense_reason_t target_do_receive_copy_results(struct se_cmd *);