Add GET LBA STATUS command support to CTL.

It is implemented for LUNs backed by ZVOLs in "dev" mode and files.
GEOM has no such API, so for LUNs backed by raw devices all LBAs will
be reported as mapped/unknown.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.

1 files changed, 26 insertions, 0 deletions

diff --git a/sys/cam/scsi/scsi_all.h b/sys/cam/scsi/scsi_all.h
index 6ee03705c753..d536a74b2ebc 100644
--- a/sys/cam/scsi/scsi_all.h
+++ b/sys/cam/scsi/scsi_all.h
@@ -2518,6 +2518,32 @@ struct scsi_read_capacity_data_long
 	uint8_t	reserved[16];
 };
 
+struct scsi_get_lba_status
+{
+	uint8_t opcode;
+#define	SGLS_SERVICE_ACTION	0x12
+	uint8_t service_action;
+	uint8_t addr[8];
+	uint8_t alloc_len[4];
+	uint8_t reserved;
+	uint8_t control;
+};
+
+struct scsi_get_lba_status_data_descr
+{
+	uint8_t addr[8];
+	uint8_t length[4];
+	uint8_t status;
+	uint8_t reserved[3];
+};
+
+struct scsi_get_lba_status_data
+{
+	uint8_t length[4];
+	uint8_t reserved[4];
+	struct scsi_get_lba_status_data_descr descr[];
+};
+
 struct scsi_report_luns
 {
 	uint8_t opcode;