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authorAjay Joshi <ajay.joshi@wdc.com>2019-10-27 17:05:46 +0300
committerJens Axboe <axboe@kernel.dk>2019-11-07 16:31:50 +0300
commite876df1fe0ad1b191284ee6ed2db7960bd322d00 (patch)
tree3b2f4ad11a1dc4e924437ba803731bb9e8cb6e53 /include/uapi/linux/blkzoned.h
parent6c1b1da58f8c7a697a88ae35afeba196fc7b701e (diff)
downloadlinux-e876df1fe0ad1b191284ee6ed2db7960bd322d00.tar.xz
block: add zone open, close and finish ioctl support
Introduce three new ioctl commands BLKOPENZONE, BLKCLOSEZONE and BLKFINISHZONE to allow applications to control the condition of zones on a zoned block device through the execution of the REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH operations. Contains contributions from Matias Bjorling, Hans Holmberg, Dmitry Fomichev, Keith Busch, Damien Le Moal and Christoph Hellwig. Reviewed-by: Javier González <javier@javigon.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ajay Joshi <ajay.joshi@wdc.com> Signed-off-by: Matias Bjorling <matias.bjorling@wdc.com> Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com> Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux/blkzoned.h')
-rw-r--r--include/uapi/linux/blkzoned.h17
1 files changed, 14 insertions, 3 deletions
diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h
index 498eec813494..0cdef67135f0 100644
--- a/include/uapi/linux/blkzoned.h
+++ b/include/uapi/linux/blkzoned.h
@@ -120,9 +120,11 @@ struct blk_zone_report {
};
/**
- * 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 - BLKRESETZONE/BLKOPENZONE/
+ * BLKCLOSEZONE/BLKFINISHZONE ioctl
+ * requests
+ * @sector: Starting sector of the first zone to operate on.
+ * @nr_sectors: Total number of sectors of all zones to operate on.
*/
struct blk_zone_range {
__u64 sector;
@@ -139,10 +141,19 @@ struct blk_zone_range {
* sector range. The sector range must be zone aligned.
* @BLKGETZONESZ: Get the device zone size in number of 512 B sectors.
* @BLKGETNRZONES: Get the total number of zones of the device.
+ * @BLKOPENZONE: Open the zones in the specified sector range.
+ * The 512 B sector range must be zone aligned.
+ * @BLKCLOSEZONE: Close the zones in the specified sector range.
+ * The 512 B sector range must be zone aligned.
+ * @BLKFINISHZONE: Mark the zones as full in the specified sector range.
+ * The 512 B sector range must be zone aligned.
*/
#define BLKREPORTZONE _IOWR(0x12, 130, struct blk_zone_report)
#define BLKRESETZONE _IOW(0x12, 131, struct blk_zone_range)
#define BLKGETZONESZ _IOR(0x12, 132, __u32)
#define BLKGETNRZONES _IOR(0x12, 133, __u32)
+#define BLKOPENZONE _IOW(0x12, 134, struct blk_zone_range)
+#define BLKCLOSEZONE _IOW(0x12, 135, struct blk_zone_range)
+#define BLKFINISHZONE _IOW(0x12, 136, struct blk_zone_range)
#endif /* _UAPI_BLKZONED_H */