block/block-common: add zoned device structs

Signed-off-by: Sam Li <faithilikerun@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20230508045533.175575-2-faithilikerun@gmail.com
Message-id: 20230324090605.28361-2-faithilikerun@gmail.com
[Adjust commit message prefix as suggested by Philippe Mathieu-Daudé
<philmd@linaro.org>.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

include/block/block-common.h

@@ -75,6 +75,49 @@ typedef struct BlockDriver BlockDriver;
 typedef struct BdrvChild BdrvChild;
 typedef struct BdrvChildClass BdrvChildClass;
 
+typedef enum BlockZoneOp {
+    BLK_ZO_OPEN,
+    BLK_ZO_CLOSE,
+    BLK_ZO_FINISH,
+    BLK_ZO_RESET,
+} BlockZoneOp;
+
+typedef enum BlockZoneModel {
+    BLK_Z_NONE = 0x0, /* Regular block device */
+    BLK_Z_HM = 0x1, /* Host-managed zoned block device */
+    BLK_Z_HA = 0x2, /* Host-aware zoned block device */
+} BlockZoneModel;
+
+typedef enum BlockZoneState {
+    BLK_ZS_NOT_WP = 0x0,
+    BLK_ZS_EMPTY = 0x1,
+    BLK_ZS_IOPEN = 0x2,
+    BLK_ZS_EOPEN = 0x3,
+    BLK_ZS_CLOSED = 0x4,
+    BLK_ZS_RDONLY = 0xD,
+    BLK_ZS_FULL = 0xE,
+    BLK_ZS_OFFLINE = 0xF,
+} BlockZoneState;
+
+typedef enum BlockZoneType {
+    BLK_ZT_CONV = 0x1, /* Conventional random writes supported */
+    BLK_ZT_SWR = 0x2, /* Sequential writes required */
+    BLK_ZT_SWP = 0x3, /* Sequential writes preferred */
+} BlockZoneType;
+
+/*
+ * Zone descriptor data structure.
+ * Provides information on a zone with all position and size values in bytes.
+ */
+typedef struct BlockZoneDescriptor {
+    uint64_t start;
+    uint64_t length;
+    uint64_t cap;
+    uint64_t wp;
+    BlockZoneType type;
+    BlockZoneState state;
+} BlockZoneDescriptor;
+
 typedef struct BlockDriverInfo {
     /* in bytes, 0 if irrelevant */
     int cluster_size;