vDPA: code clean for vhost_vdpa uapi

This commit cleans up the uapi for vhost_vdpa by
better naming some of the enums which report blk
information to user space, and they are not
in any official releases yet.

Fixes: 1ac61dd ("vDPA: report virtio-blk flush info to user space")
Fixes: ae1374b ("vDPA: report virtio-block read-only info to user space")
Fixes: 330b8ae ("vDPA: report virtio-block max segment size to user space")
Signed-off-by: Zhu Lingshan <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

Author: Zhu Lingshan

drivers/vdpa/vdpa.c

@@ -967,7 +967,7 @@ vdpa_dev_blk_seg_size_config_fill(struct sk_buff *msg, u64 features,
 
 	val_u32 = __virtio32_to_cpu(true, config->size_max);
 
-	return nla_put_u32(msg, VDPA_ATTR_DEV_BLK_CFG_SEG_SIZE, val_u32);
+	return nla_put_u32(msg, VDPA_ATTR_DEV_BLK_CFG_SIZE_MAX, val_u32);
 }
 
 /* fill the block size*/
@@ -1089,7 +1089,7 @@ static int vdpa_dev_blk_ro_config_fill(struct sk_buff *msg, u64 features)
 	u8 ro;
 
 	ro = ((features & BIT_ULL(VIRTIO_BLK_F_RO)) == 0) ? 0 : 1;
-	if (nla_put_u8(msg, VDPA_ATTR_DEV_BLK_CFG_READ_ONLY, ro))
+	if (nla_put_u8(msg, VDPA_ATTR_DEV_BLK_READ_ONLY, ro))
 		return -EMSGSIZE;
 
 	return 0;
@@ -1100,7 +1100,7 @@ static int vdpa_dev_blk_flush_config_fill(struct sk_buff *msg, u64 features)
 	u8 flush;
 
 	flush = ((features & BIT_ULL(VIRTIO_BLK_F_FLUSH)) == 0) ? 0 : 1;
-	if (nla_put_u8(msg, VDPA_ATTR_DEV_BLK_CFG_FLUSH, flush))
+	if (nla_put_u8(msg, VDPA_ATTR_DEV_BLK_FLUSH, flush))
 		return -EMSGSIZE;
 
 	return 0;

include/uapi/linux/vdpa.h

@@ -57,7 +57,7 @@ enum vdpa_attr {
 	VDPA_ATTR_DEV_FEATURES,                 /* u64 */
 
 	VDPA_ATTR_DEV_BLK_CFG_CAPACITY,		/* u64 */
-	VDPA_ATTR_DEV_BLK_CFG_SEG_SIZE,		/* u32 */
+	VDPA_ATTR_DEV_BLK_CFG_SIZE_MAX,		/* u32 */
 	VDPA_ATTR_DEV_BLK_CFG_BLK_SIZE,		/* u32 */
 	VDPA_ATTR_DEV_BLK_CFG_SEG_MAX,		/* u32 */
 	VDPA_ATTR_DEV_BLK_CFG_NUM_QUEUES,	/* u16 */
@@ -70,8 +70,8 @@ enum vdpa_attr {
 	VDPA_ATTR_DEV_BLK_CFG_DISCARD_SEC_ALIGN,/* u32 */
 	VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEC,	/* u32 */
 	VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEG,	/* u32 */
-	VDPA_ATTR_DEV_BLK_CFG_READ_ONLY,		/* u8 */
-	VDPA_ATTR_DEV_BLK_CFG_FLUSH,		/* u8 */
+	VDPA_ATTR_DEV_BLK_READ_ONLY,		/* u8 */
+	VDPA_ATTR_DEV_BLK_FLUSH,		/* u8 */
 
 	/* new attributes must be added above here */
 	VDPA_ATTR_MAX,