diff --git a/iscsi-scst/README b/iscsi-scst/README
index cf72ac84b..3f2a7957f 100644
--- a/iscsi-scst/README
+++ b/iscsi-scst/README
@@ -113,6 +113,10 @@ Usage
 
 See HOWTOs in the doc/ subdirectory.
 
+If you want to use Intel CRC32 offload and have corresponding hardware,
+you should load crc32c-intel module. Then iSCSI-SCST will do all digest
+calculations using this facility.
+
 In 2.0.0 usage of iscsi-scstd.conf as well as iscsi-scst-adm utility is
 obsolete. Use the sysfs interface facilities instead.
 
diff --git a/iscsi-scst/README_in-tree b/iscsi-scst/README_in-tree
index e5fd910ad..8f1f8cf56 100644
--- a/iscsi-scst/README_in-tree
+++ b/iscsi-scst/README_in-tree
@@ -17,6 +17,10 @@ Usage
 See in http://iscsi-scst.sourceforge.net/iscsi-scst-howto.txt how to
 configure iSCSI-SCST.
 
+If you want to use Intel CRC32 offload and have corresponding hardware,
+you should load crc32c-intel module. Then iSCSI-SCST will do all digest
+calculations using this facility.
+
 In 2.0.0 usage of iscsi-scstd.conf as well as iscsi-scst-adm utility is
 obsolete. Use the sysfs interface facilities instead.