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 16 enum xcopy_origin_list { 17 XCOL_SOURCE_RECV_OP = 0x01, 18 XCOL_DEST_RECV_OP = 0x02, 19 }; 20 21 struct 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 64 extern int target_xcopy_setup_pt(void); 65 extern void target_xcopy_release_pt(void); 66 extern sense_reason_t target_do_xcopy(struct se_cmd *); 67 extern sense_reason_t target_do_receive_copy_results(struct se_cmd *); 68