summaryrefslogtreecommitdiffstats
path: root/drivers/target/target_core_xcopy.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/target/target_core_xcopy.h')
-rw-r--r--drivers/target/target_core_xcopy.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h
new file mode 100644
index 000000000000..700a981c7b41
--- /dev/null
+++ b/drivers/target/target_core_xcopy.h
@@ -0,0 +1,62 @@
+#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 *);