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Diffstat (limited to 'pc-bios/s390-ccw/scsi.h')
-rw-r--r--pc-bios/s390-ccw/scsi.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/pc-bios/s390-ccw/scsi.h b/pc-bios/s390-ccw/scsi.h
index 83ffaef54e..803eff8ae3 100644
--- a/pc-bios/s390-ccw/scsi.h
+++ b/pc-bios/s390-ccw/scsi.h
@@ -28,9 +28,11 @@
/* SCSI Inquiry Types */
#define SCSI_INQUIRY_STANDARD 0x00U
+#define SCSI_INQUIRY_EVPD 0x01U
/* SCSI Inquiry Pages */
#define SCSI_INQUIRY_STANDARD_NONE 0x00U
+#define SCSI_INQUIRY_EVPD_SUPPORTED_PAGES 0x00U
union ScsiLun {
uint64_t v64; /* numeric shortcut */
@@ -77,6 +79,14 @@ struct ScsiInquiryStd {
} __attribute__((packed));
typedef struct ScsiInquiryStd ScsiInquiryStd;
+struct ScsiInquiryEvpdPages {
+ uint8_t peripheral_qdt; /* b0, use (b0 & 0x1f) to get SCSI_INQ_RDT */
+ uint8_t page_code; /* b1 */
+ uint16_t page_length; /* b2..b3 length = N-3 */
+ uint8_t byte[28]; /* b4..bN Supported EVPD pages (N=31 here) */
+} __attribute__((packed));
+typedef struct ScsiInquiryEvpdPages ScsiInquiryEvpdPages;
+
struct ScsiCdbInquiry {
uint8_t command; /* b0, == 0x12 */
uint8_t b1; /* b1, |= 0x01 (evpd) */