69 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#include <target/target_core_base.h>3 4#define XCOPY_HDR_LEN 165#define XCOPY_TARGET_DESC_LEN 326#define XCOPY_SEGMENT_DESC_LEN 287#define XCOPY_NAA_IEEE_REGEX_LEN 168#define XCOPY_MAX_BYTES 16777216 /* 16 MB */9 10/*11 * SPC4r37 6.4.6.112 * Table 150 — CSCD descriptor ID values13 */14#define XCOPY_CSCD_DESC_ID_LIST_OFF_MAX 0x07FF15 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 struct percpu_ref *remote_lun_ref;31 32 sector_t src_lba;33 sector_t dst_lba;34 unsigned short stdi;35 unsigned short dtdi;36 unsigned short nolb;37 38 u32 xop_data_bytes;39 u32 xop_data_nents;40 struct scatterlist *xop_data_sg;41 struct work_struct xop_work;42};43 44/*45 * Receive Copy Results Sevice Actions46 */47#define RCR_SA_COPY_STATUS 0x0048#define RCR_SA_RECEIVE_DATA 0x0149#define RCR_SA_OPERATING_PARAMETERS 0x0350#define RCR_SA_FAILED_SEGMENT_DETAILS 0x0451 52/*53 * Receive Copy Results defs for Operating Parameters54 */55#define RCR_OP_MAX_TARGET_DESC_COUNT 0x256#define RCR_OP_MAX_SG_DESC_COUNT 0x157#define RCR_OP_MAX_DESC_LIST_LEN 102458#define RCR_OP_MAX_SEGMENT_LEN 268435456 /* 256 MB */59#define RCR_OP_TOTAL_CONCURR_COPIES 0x1 /* Must be <= 16384 */60#define RCR_OP_MAX_CONCURR_COPIES 0x1 /* Must be <= 255 */61#define RCR_OP_DATA_SEG_GRAN_LOG2 9 /* 512 bytes in log 2 */62#define RCR_OP_INLINE_DATA_GRAN_LOG2 9 /* 512 bytes in log 2 */63#define RCR_OP_HELD_DATA_GRAN_LOG2 9 /* 512 bytes in log 2 */64 65extern int target_xcopy_setup_pt(void);66extern void target_xcopy_release_pt(void);67extern sense_reason_t target_do_xcopy(struct se_cmd *);68extern sense_reason_t target_do_receive_copy_results(struct se_cmd *);69