1 files changed, 21 insertions, 8 deletions

diff --git a/drivers/block/rnbd/rnbd-proto.h b/drivers/block/rnbd/rnbd-proto.h
index e32f8f2c868a..77360c2a6069 100644
--- a/drivers/block/rnbd/rnbd-proto.h
+++ b/drivers/block/rnbd/rnbd-proto.h
@@ -24,7 +24,7 @@
 #define RTRS_PORT 1234
 
 /**
- * enum rnbd_msg_types - RNBD message types
+ * enum rnbd_msg_type - RNBD message types
  * @RNBD_MSG_SESS_INFO:	initial session info from client to server
  * @RNBD_MSG_SESS_INFO_RSP:	initial session info from server to client
  * @RNBD_MSG_OPEN:		open (map) device request
@@ -47,10 +47,11 @@ enum rnbd_msg_type {
  */
 struct rnbd_msg_hdr {
 	__le16		type;
+	/* private: */
 	__le16		__padding;
 };
 
-/**
+/*
  * We allow to map RO many times and RW only once. We allow to map yet another
  * time RW, if MIGRATION is provided (second RW export can be required for
  * example for VM migration)
@@ -78,6 +79,7 @@ static const __maybe_unused struct {
 struct rnbd_msg_sess_info {
 	struct rnbd_msg_hdr hdr;
 	u8		ver;
+	/* private: */
 	u8		reserved[31];
 };
 
@@ -89,6 +91,7 @@ struct rnbd_msg_sess_info {
 struct rnbd_msg_sess_info_rsp {
 	struct rnbd_msg_hdr hdr;
 	u8		ver;
+	/* private: */
 	u8		reserved[31];
 };
 
@@ -97,13 +100,16 @@ struct rnbd_msg_sess_info_rsp {
  * @hdr:		message header
  * @access_mode:	the mode to open remote device, valid values see:
  *			enum rnbd_access_mode
- * @device_name:	device path on remote side
+ * @dev_name:		device path on remote side
  */
 struct rnbd_msg_open {
 	struct rnbd_msg_hdr hdr;
 	u8		access_mode;
+	/* private: */
 	u8		resv1;
+	/* public: */
 	s8		dev_name[NAME_MAX];
+	/* private: */
 	u8		reserved[3];
 };
 
@@ -128,7 +134,7 @@ enum rnbd_cache_policy {
  * @device_id:		device_id on server side to identify the device
  * @nsectors:		number of sectors in the usual 512b unit
  * @max_hw_sectors:	max hardware sectors in the usual 512b unit
- * @max_write_same_sectors: max sectors for WRITE SAME in the 512b unit
+ * @max_write_zeroes_sectors: max sectors for WRITE ZEROES in the 512b unit
  * @max_discard_sectors: max. sectors that can be discarded at once in 512b
  * unit.
  * @discard_granularity: size of the internal discard allocation unit in bytes
@@ -145,7 +151,7 @@ struct rnbd_msg_open_rsp {
 	__le32			device_id;
 	__le64			nsectors;
 	__le32			max_hw_sectors;
-	__le32			max_write_same_sectors;
+	__le32			max_write_zeroes_sectors;
 	__le32			max_discard_sectors;
 	__le32			discard_granularity;
 	__le32			discard_alignment;
@@ -155,6 +161,7 @@ struct rnbd_msg_open_rsp {
 	__le16			secure_discard;
 	u8			obsolete_rotational;
 	u8			cache_policy;
+	/* private: */
 	u8			reserved[10];
 };
 
@@ -186,8 +193,8 @@ struct rnbd_msg_io {
  * @RNBD_OP_FLUSH:	     flush the volatile write cache
  * @RNBD_OP_DISCARD:        discard sectors
  * @RNBD_OP_SECURE_ERASE:   securely erase sectors
- * @RNBD_OP_WRITE_SAME:     write the same sectors many times
-
+ * @RNBD_OP_WRITE_ZEROES:   write zeroes sectors
+ *
  * @RNBD_F_SYNC:	     request is sync (sync write or read)
  * @RNBD_F_FUA:             forced unit access
  */
@@ -199,7 +206,7 @@ enum rnbd_io_flags {
 	RNBD_OP_FLUSH		= 2,
 	RNBD_OP_DISCARD	= 3,
 	RNBD_OP_SECURE_ERASE	= 4,
-	RNBD_OP_WRITE_SAME	= 5,
+	RNBD_OP_WRITE_ZEROES	= 5,
 
 	/* Flags */
 	RNBD_F_SYNC  = 1<<(RNBD_OP_BITS + 0),
@@ -236,6 +243,9 @@ static inline blk_opf_t rnbd_to_bio_flags(u32 rnbd_opf)
 	case RNBD_OP_SECURE_ERASE:
 		bio_opf = REQ_OP_SECURE_ERASE;
 		break;
+	case RNBD_OP_WRITE_ZEROES:
+		bio_opf = REQ_OP_WRITE_ZEROES;
+		break;
 	default:
 		WARN(1, "Unknown RNBD type: %d (flags %d)\n",
 		     rnbd_op(rnbd_opf), rnbd_opf);
@@ -268,6 +278,9 @@ static inline u32 rq_to_rnbd_flags(struct request *rq)
 	case REQ_OP_SECURE_ERASE:
 		rnbd_opf = RNBD_OP_SECURE_ERASE;
 		break;
+	case REQ_OP_WRITE_ZEROES:
+		rnbd_opf = RNBD_OP_WRITE_ZEROES;
+		break;
 	case REQ_OP_FLUSH:
 		rnbd_opf = RNBD_OP_FLUSH;
 		break;