target: provide generic sbc device type/revision helpers

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index e7a0305..b7f3936 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -50,11 +50,14 @@
 
 void	target_complete_cmd(struct se_cmd *, u8);
 
-int	sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops);
 int	spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
 int	spc_emulate_report_luns(struct se_cmd *cmd);
 int	spc_get_write_same_sectors(struct se_cmd *cmd);
 
+int	sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops);
+u32	sbc_get_device_rev(struct se_device *dev);
+u32	sbc_get_device_type(struct se_device *dev);
+
 void	transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
 int	transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
 int	transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);