linux-kernel - [PATCH v4 1/4] ublk: change ublk IO command defines to enum

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Date:   Wed, 28 Jun 2023 21:06:46 +0200
From:   Andreas Hindborg <nmi@...aspace.dk>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Hans Holmberg <Hans.Holmberg@....com>,
        Aravind Ramesh <Aravind.Ramesh@....com>,
        Jens Axboe <axboe@...nel.dk>,
        linux-block@...r.kernel.org (open list:BLOCK LAYER),
        Christoph Hellwig <hch@...radead.org>,
        Matias Bjorling <Matias.Bjorling@....com>,
        Andreas Hindborg <a.hindborg@...sung.com>,
        linux-kernel@...r.kernel.org (open list),
        Damien Le Moal <dlemoal@...nel.org>, gost.dev@...sung.com,
        Minwoo Im <minwoo.im.dev@...il.com>
Subject: [PATCH v4 1/4] ublk: change ublk IO command defines to enum

From: Andreas Hindborg <a.hindborg@...sung.com>

This change is in preparation for zoned storage support.

Signed-off-by: Andreas Hindborg <a.hindborg@...sung.com>
---
 include/uapi/linux/ublk_cmd.h | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/include/uapi/linux/ublk_cmd.h b/include/uapi/linux/ublk_cmd.h
index 4b8558db90e1..471b3b983045 100644
--- a/include/uapi/linux/ublk_cmd.h
+++ b/include/uapi/linux/ublk_cmd.h
@@ -229,12 +229,23 @@ struct ublksrv_ctrl_dev_info {
 	__u64   reserved2;
 };
 
-#define		UBLK_IO_OP_READ		0
-#define		UBLK_IO_OP_WRITE		1
-#define		UBLK_IO_OP_FLUSH		2
-#define		UBLK_IO_OP_DISCARD	3
-#define		UBLK_IO_OP_WRITE_SAME	4
-#define		UBLK_IO_OP_WRITE_ZEROES	5
+enum ublk_op {
+	UBLK_IO_OP_READ = 0,
+	UBLK_IO_OP_WRITE = 1,
+	UBLK_IO_OP_FLUSH = 2,
+	UBLK_IO_OP_DISCARD = 3,
+	UBLK_IO_OP_WRITE_SAME = 4,
+	UBLK_IO_OP_WRITE_ZEROES = 5,
+	UBLK_IO_OP_ZONE_OPEN = 10,
+	UBLK_IO_OP_ZONE_CLOSE = 11,
+	UBLK_IO_OP_ZONE_FINISH = 12,
+	UBLK_IO_OP_ZONE_APPEND = 13,
+	UBLK_IO_OP_ZONE_RESET = 15,
+	__UBLK_IO_OP_DRV_IN_START = 32,
+	__UBLK_IO_OP_DRV_IN_END = 96,
+	__UBLK_IO_OP_DRV_OUT_START = __UBLK_IO_OP_DRV_IN_END,
+	__UBLK_IO_OP_DRV_OUT_END = 160,
+};
 
 #define		UBLK_IO_F_FAILFAST_DEV		(1U << 8)
 #define		UBLK_IO_F_FAILFAST_TRANSPORT	(1U << 9)
-- 
2.41.0