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_pt_cmd; 22 23 struct xcopy_op { 24 int op_origin; 25 26 struct se_cmd *xop_se_cmd; 27 struct se_device *src_dev; 28 unsigned char src_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN]; 29 struct se_device *dst_dev; 30 unsigned char dst_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN]; 31 unsigned char local_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN]; 32 33 sector_t src_lba; 34 sector_t dst_lba; 35 unsigned short stdi; 36 unsigned short dtdi; 37 unsigned short nolb; 38 39 struct xcopy_pt_cmd *src_pt_cmd; 40 struct xcopy_pt_cmd *dst_pt_cmd; 41 42 u32 xop_data_bytes; 43 u32 xop_data_nents; 44 struct scatterlist *xop_data_sg; 45 struct work_struct xop_work; 46 }; 47 48 /* 49 * Receive Copy Results Sevice Actions 50 */ 51 #define RCR_SA_COPY_STATUS 0x00 52 #define RCR_SA_RECEIVE_DATA 0x01 53 #define RCR_SA_OPERATING_PARAMETERS 0x03 54 #define RCR_SA_FAILED_SEGMENT_DETAILS 0x04 55 56 /* 57 * Receive Copy Results defs for Operating Parameters 58 */ 59 #define RCR_OP_MAX_TARGET_DESC_COUNT 0x2 60 #define RCR_OP_MAX_SG_DESC_COUNT 0x1 61 #define RCR_OP_MAX_DESC_LIST_LEN 1024 62 #define RCR_OP_MAX_SEGMENT_LEN 268435456 /* 256 MB */ 63 #define RCR_OP_TOTAL_CONCURR_COPIES 0x1 /* Must be <= 16384 */ 64 #define RCR_OP_MAX_CONCURR_COPIES 0x1 /* Must be <= 255 */ 65 #define RCR_OP_DATA_SEG_GRAN_LOG2 9 /* 512 bytes in log 2 */ 66 #define RCR_OP_INLINE_DATA_GRAN_LOG2 9 /* 512 bytes in log 2 */ 67 #define RCR_OP_HELD_DATA_GRAN_LOG2 9 /* 512 bytes in log 2 */ 68 69 extern int target_xcopy_setup_pt(void); 70 extern void target_xcopy_release_pt(void); 71 extern sense_reason_t target_do_xcopy(struct se_cmd *); 72 extern sense_reason_t target_do_receive_copy_results(struct se_cmd *); 73