D11634.id30993.diff
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	Index: head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
	===================================================================
	--- head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
	+++ head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
	@@ -2210,6 +2210,23 @@
	resp_buf[3], resp_buf[4]);
	}
	/*
	+ * XXX: Hyper-V (since win2012r2) responses inquiry with
	+ * unknown version (0) for GEN-2 DVD device.
	+ * Manually set the version number to SPC3 in order to
	+ * ask CAM to continue probing with "PROBE_REPORT_LUNS".
	+ * see probedone() in scsi_xpt.c
	+ */
	+ if (SID_TYPE(inq_data) == T_CDROM &&
	+ inq_data->version == 0 &&
	+ (vmstor_proto_version >= VMSTOR_PROTOCOL_VERSION_WIN8)) {
	+ inq_data->version = SCSI_REV_SPC3;
	+ if (bootverbose) {
	+ xpt_print(ccb->ccb_h.path,
	+ "set version from 0 to %d\n",
	+ inq_data->version);
	+ }
	+ }
	+ /*
	* XXX: Manually fix the wrong response returned from WS2012
	*/
	if (!is_scsi_valid(inq_data) &&
	@@ -2218,7 +2235,7 @@
	vmstor_proto_version == VMSTOR_PROTOCOL_VERSION_WIN7)) {
	if (data_len >= 4 &&
	(resp_buf[2] == 0 \|\| resp_buf[3] == 0)) {
	- resp_buf[2] = 5; // verion=5 means SPC-3
	+ resp_buf[2] = SCSI_REV_SPC3;
	resp_buf[3] = 2; // resp fmt must be 2
	if (bootverbose)
	xpt_print(ccb->ccb_h.path,