diff options
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/blkzoned.h | 40 | ||||
| -rw-r--r-- | include/uapi/linux/fs.h | 4 |
2 files changed, 44 insertions, 0 deletions
diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h index a3817214b0e0..40d1d7bff537 100644 --- a/include/uapi/linux/blkzoned.h +++ b/include/uapi/linux/blkzoned.h @@ -16,6 +16,7 @@ #define _UAPI_BLKZONED_H #include <linux/types.h> +#include <linux/ioctl.h> /** * enum blk_zone_type - Types of zones allowed in a zoned device. @@ -100,4 +101,43 @@ struct blk_zone { __u8 reserved[36]; }; +/** + * struct blk_zone_report - BLKREPORTZONE ioctl request/reply + * + * @sector: starting sector of report + * @nr_zones: IN maximum / OUT actual + * @reserved: padding to 16 byte alignment + * @zones: Space to hold @nr_zones @zones entries on reply. + * + * The array of at most @nr_zones must follow this structure in memory. + */ +struct blk_zone_report { + __u64 sector; + __u32 nr_zones; + __u8 reserved[4]; + struct blk_zone zones[0]; +} __packed; + +/** + * struct blk_zone_range - BLKRESETZONE ioctl request + * @sector: starting sector of the first zone to issue reset write pointer + * @nr_sectors: Total number of sectors of 1 or more zones to reset + */ +struct blk_zone_range { + __u64 sector; + __u64 nr_sectors; +}; + +/** + * Zoned block device ioctl's: + * + * @BLKREPORTZONE: Get zone information. Takes a zone report as argument. + * The zone report will start from the zone containing the + * sector specified in the report request structure. + * @BLKRESETZONE: Reset the write pointer of the zones in the specified + * sector range. The sector range must be zone aligned. + */ +#define BLKREPORTZONE _IOWR(0x12, 130, struct blk_zone_report) +#define BLKRESETZONE _IOW(0x12, 131, struct blk_zone_range) + #endif /* _UAPI_BLKZONED_H */ diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index acb2b6152ba0..c1d11df07b28 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -225,6 +225,10 @@ struct fsxattr { #define BLKSECDISCARD _IO(0x12,125) #define BLKROTATIONAL _IO(0x12,126) #define BLKZEROOUT _IO(0x12,127) +/* + * A jump here: 130-131 are reserved for zoned block devices + * (see uapi/linux/blkzoned.h) + */ #define BMAP_IOCTL 1 /* obsolete - kept for compatibility */ #define FIBMAP _IO(0x00,1) /* bmap access */ |