[PATCH 5/6] block: add zone attr. to zone mgmt IOCTL struct

[Javier González]

From: Javier González <javier.gonz at samsung.com>

Add zone attributes field to the blk_zone structure. Use ZNS attributes
as base for zoned block devices in general.

Signed-off-by: Javier González <javier.gonz at samsung.com>
Signed-off-by: SelvaKumar S <selvakuma.s1 at samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k at samsung.com>
Signed-off-by: Nitesh Shetty <nj.shetty at samsung.com>
---
 drivers/nvme/host/zns.c       |  1 +
 include/uapi/linux/blkzoned.h | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/zns.c b/drivers/nvme/host/zns.c
index 258d03610cc0..7d8381fe7665 100644
--- a/drivers/nvme/host/zns.c
+++ b/drivers/nvme/host/zns.c
@@ -195,6 +195,7 @@ static int nvme_zone_parse_entry(struct nvme_ns *ns,
 	zone.capacity = nvme_lba_to_sect(ns, le64_to_cpu(entry->zcap));
 	zone.start = nvme_lba_to_sect(ns, le64_to_cpu(entry->zslba));
 	zone.wp = nvme_lba_to_sect(ns, le64_to_cpu(entry->wp));
+	zone.attr = entry->za;
 
 	return cb(&zone, idx, data);
 }
diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h
index 0c49a4b2ce5d..2e43a00e3425 100644
--- a/include/uapi/linux/blkzoned.h
+++ b/include/uapi/linux/blkzoned.h
@@ -82,6 +82,16 @@ enum blk_zone_report_flags {
 	BLK_ZONE_REP_CAPACITY	= (1 << 0),
 };
 
+/**
+ * Zone Attributes
+ */
+enum blk_zone_attr {
+	BLK_ZONE_ATTR_ZFC	= 1 << 0,
+	BLK_ZONE_ATTR_FZR	= 1 << 1,
+	BLK_ZONE_ATTR_RZR	= 1 << 2,
+	BLK_ZONE_ATTR_ZDEV	= 1 << 7,
+};
+
 /**
  * struct blk_zone - Zone descriptor for BLKREPORTZONE ioctl.
  *
@@ -108,7 +118,8 @@ struct blk_zone {
 	__u8	cond;		/* Zone condition */
 	__u8	non_seq;	/* Non-sequential write resources active */
 	__u8	reset;		/* Reset write pointer recommended */
-	__u8	resv[4];
+	__u8	attr;		/* Zone attributes */
+	__u8	resv[3];
 	__u64	capacity;	/* Zone capacity in number of sectors */
 	__u8	reserved[24];
 };
-- 
2.17.1