[PATCH v6 1/8] include: add zoned device structs

Sam Li posted 8 patches 1 month, 3 weeks ago
There is a newer version of this series
Maintainers: Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <fam@euphon.net>, Markus Armbruster <armbru@redhat.com>, Eric Blake <eblake@redhat.com>
[PATCH v6 1/8] include: add zoned device structs
Posted by Sam Li 1 month, 3 weeks ago
Signed-off-by: Sam Li <faithilikerun@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 include/block/block-common.h | 43 ++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/include/block/block-common.h b/include/block/block-common.h
index fdb7306e78..36bd0e480e 100644
--- a/include/block/block-common.h
+++ b/include/block/block-common.h
@@ -49,6 +49,49 @@ 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 BlockZoneCondition {
+    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,
+} BlockZoneCondition;
+
+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;
+    BlockZoneCondition cond;
+} BlockZoneDescriptor;
+
 typedef struct BlockDriverInfo {
     /* in bytes, 0 if irrelevant */
     int cluster_size;
-- 
2.37.1