| Message ID | 20221016145110.171262-2-faithilikerun@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for zoned device | expand |
On Sun, 2022-10-16 at 22:51 +0800, Sam Li wrote: > 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> > --- > 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; The virtio-zbd specification doesn't define conditions, it uses the term "state" instead, similar to ZNS. Please rename BlockZoneCondition to BlockZoneState to follow the spec terminology. > + > +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; BlockZoneState state; > +} BlockZoneDescriptor; > + > typedef struct BlockDriverInfo { > /* in bytes, 0 if irrelevant */ > int cluster_size;
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;