[PATCH 1/2] include: import virtio_blk headers from linux with zoned device support

[Sam Li]

Add file from Dmitry's "virtio-blk:add support for zoned block devices"
linux patch using scripts/update-linux-headers.sh. There is a link for
more information: https://github.com/dmitry-fomichev/virtblk-zbd

Signed-off-by: Sam Li <faithilikerun@gmail.com>
---
 include/standard-headers/linux/virtio_blk.h | 109 ++++++++++++++++++++
 1 file changed, 109 insertions(+)

diff --git a/include/standard-headers/linux/virtio_blk.h 
b/include/standard-headers/linux/virtio_blk.h
index 2dcc90826a..490bd21c76 100644
--- a/include/standard-headers/linux/virtio_blk.h
+++ b/include/standard-headers/linux/virtio_blk.h
@@ -40,6 +40,7 @@
 #define VIRTIO_BLK_F_MQ                12      /* support more than one vq */
 #define VIRTIO_BLK_F_DISCARD   13      /* DISCARD is supported */
 #define VIRTIO_BLK_F_WRITE_ZEROES      14      /* WRITE ZEROES is supported */
+#define VIRTIO_BLK_F_ZONED             17      /* Zoned block device */
 
 /* Legacy feature bits */
 #ifndef VIRTIO_BLK_NO_LEGACY
@@ -119,6 +120,20 @@ struct virtio_blk_config {
        uint8_t write_zeroes_may_unmap;
 
        uint8_t unused1[3];
+
+       /* Secure erase fields that are defined in the virtio spec */
+       uint8_t sec_erase[12];
+
+       /* Zoned block device characteristics (if VIRTIO_BLK_F_ZONED) */
+       struct virtio_blk_zoned_characteristics {
+               __virtio32 zone_sectors;
+               __virtio32 max_open_zones;
+               __virtio32 max_active_zones;
+               __virtio32 max_append_sectors;
+               __virtio32 write_granularity;
+               uint8_t model;
+               uint8_t unused2[3];
+       } zoned;
 } QEMU_PACKED;
 
 /*
@@ -153,6 +168,27 @@ struct virtio_blk_config {
 /* Write zeroes command */
 #define VIRTIO_BLK_T_WRITE_ZEROES      13
 
+/* Zone append command */
+#define VIRTIO_BLK_T_ZONE_APPEND    15
+
+/* Report zones command */
+#define VIRTIO_BLK_T_ZONE_REPORT    16
+
+/* Open zone command */
+#define VIRTIO_BLK_T_ZONE_OPEN      18
+
+/* Close zone command */
+#define VIRTIO_BLK_T_ZONE_CLOSE     20
+
+/* Finish zone command */
+#define VIRTIO_BLK_T_ZONE_FINISH    22
+
+/* Reset zone command */
+#define VIRTIO_BLK_T_ZONE_RESET     24
+
+/* Reset All zones command */
+#define VIRTIO_BLK_T_ZONE_RESET_ALL 26
+
 #ifndef VIRTIO_BLK_NO_LEGACY
 /* Barrier before this op. */
 #define VIRTIO_BLK_T_BARRIER   0x80000000
@@ -172,6 +208,72 @@ struct virtio_blk_outhdr {
        __virtio64 sector;
 };
 
+/*
+ * Supported zoned device models.
+ */
+
+/* Regular block device */
+#define VIRTIO_BLK_Z_NONE      0
+/* Host-managed zoned device */
+#define VIRTIO_BLK_Z_HM        1
+/* Host-aware zoned device */
+#define VIRTIO_BLK_Z_HA        2
+
+/*
+ * Zone descriptor. A part of VIRTIO_BLK_T_ZONE_REPORT command reply.
+ */
+struct virtio_blk_zone_descriptor {
+       /* Zone capacity */
+       __virtio64 z_cap;
+       /* The starting sector of the zone */
+       __virtio64 z_start;
+       /* Zone write pointer position in sectors */
+       __virtio64 z_wp;
+       /* Zone type */
+       uint8_t z_type;
+       /* Zone state */
+       uint8_t z_state;
+       uint8_t reserved[38];
+};
+
+struct virtio_blk_zone_report {
+       __virtio64 nr_zones;
+       uint8_t reserved[56];
+       struct virtio_blk_zone_descriptor zones[];
+};
+
+/*
+ * Supported zone types.
+ */
+
+/* Conventional zone */
+#define VIRTIO_BLK_ZT_CONV         1
+/* Sequential Write Required zone */
+#define VIRTIO_BLK_ZT_SWR          2
+/* Sequential Write Preferred zone */
+#define VIRTIO_BLK_ZT_SWP          3
+
+/*
+ * Zone states that are available for zones of all types.
+ */
+
+/* Not a write pointer (conventional zones only) */
+#define VIRTIO_BLK_ZS_NOT_WP       0
+/* Empty */
+#define VIRTIO_BLK_ZS_EMPTY        1
+/* Implicitly Open */
+#define VIRTIO_BLK_ZS_IOPEN        2
+/* Explicitly Open */
+#define VIRTIO_BLK_ZS_EOPEN        3
+/* Closed */
+#define VIRTIO_BLK_ZS_CLOSED       4
+/* Read-Only */
+#define VIRTIO_BLK_ZS_RDONLY       13
+/* Full */
+#define VIRTIO_BLK_ZS_FULL         14
+/* Offline */
+#define VIRTIO_BLK_ZS_OFFLINE      15
+
 /* Unmap this range (only valid for write zeroes command) */
 #define VIRTIO_BLK_WRITE_ZEROES_FLAG_UNMAP     0x00000001
 
@@ -198,4 +300,11 @@ struct virtio_scsi_inhdr {
 #define VIRTIO_BLK_S_OK                0
 #define VIRTIO_BLK_S_IOERR     1
 #define VIRTIO_BLK_S_UNSUPP    2
+
+/* Error codes that are specific to zoned block devices */
+#define VIRTIO_BLK_S_ZONE_INVALID_CMD     3
+#define VIRTIO_BLK_S_ZONE_UNALIGNED_WP    4
+#define VIRTIO_BLK_S_ZONE_OPEN_RESOURCE   5
+#define VIRTIO_BLK_S_ZONE_ACTIVE_RESOURCE 6
+
 #endif /* _LINUX_VIRTIO_BLK_H */
-- 
2.37.3