1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h
new file mode 100644
index 000000000..974bc1e19
--- /dev/null
+++ b/drivers/target/target_core_xcopy.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#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];
+	struct percpu_ref *remote_lun_ref;
+
+	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 *);