+static ssize_t
+sd_show_protection_mode(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct scsi_disk *sdkp = to_scsi_disk(dev);
+ struct scsi_device *sdp = sdkp->device;
+ unsigned int dif, dix;
+
+ dif = scsi_host_dif_capable(sdp->host, sdkp->protection_type);
+ dix = scsi_host_dix_capable(sdp->host, sdkp->protection_type);
+
+ if (!dix && scsi_host_dix_capable(sdp->host, SD_DIF_TYPE0_PROTECTION)) {
+ dif = 0;
+ dix = 1;
+ }
+
+ if (!dif && !dix)
+ return snprintf(buf, 20, "none\n");
+
+ return snprintf(buf, 20, "%s%u\n", dix ? "dix" : "dif", dif);
+}
+