On Sun, 2022-10-16 at 23:05 +0800, Sam Li wrote:
> Use scripts/update-linux-headers.sh to update virtio-blk headers
> from Dmitry's "virtio-blk:add support for zoned block devices"
> linux patch. There is a link for more information:
> https://github.com/dmitry-fomichev/virtblk-zbd
>
> Signed-off-by: Sam Li <faithilike...@gmail.com>
> Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
> Signed-off-by: Sam Li <faithilike...@gmail.com>
the duplicate sign-off is not needed. With this,
Reviewed-by: Dmitry Fomichev <dmitry.fomic...@wdc.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 */
