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[PATCH v8 5/8] qdev-properties: make blocksize accept size suffixes
From: |
Roman Kagan |
Subject: |
[PATCH v8 5/8] qdev-properties: make blocksize accept size suffixes |
Date: |
Fri, 29 May 2020 01:55:13 +0300 |
It appears convenient to be able to specify physical_block_size and
logical_block_size using common size suffixes.
Teach the blocksize property setter to interpret them. Also express the
upper and lower limits in the respective units.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
hw/core/qdev-properties.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 40c13f6ebe..c9af6a1341 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -14,6 +14,7 @@
#include "qapi/visitor.h"
#include "chardev/char.h"
#include "qemu/uuid.h"
+#include "qemu/units.h"
void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
Error **errp)
@@ -771,17 +772,18 @@ const PropertyInfo qdev_prop_size32 = {
/* lower limit is sector size */
#define MIN_BLOCK_SIZE 512
-#define MIN_BLOCK_SIZE_STR stringify(MIN_BLOCK_SIZE)
+#define MIN_BLOCK_SIZE_STR "512 B"
/* upper limit is the max power of 2 that fits in uint16_t */
-#define MAX_BLOCK_SIZE 32768
-#define MAX_BLOCK_SIZE_STR stringify(MAX_BLOCK_SIZE)
+#define MAX_BLOCK_SIZE (32 * KiB)
+#define MAX_BLOCK_SIZE_STR "32 KiB"
static void set_blocksize(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
- uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop);
+ uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
+ uint64_t value;
Error *local_err = NULL;
if (dev->realized) {
@@ -789,7 +791,7 @@ static void set_blocksize(Object *obj, Visitor *v, const
char *name,
return;
}
- visit_type_uint16(v, name, &value, &local_err);
+ visit_type_size(v, name, &value, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -797,7 +799,7 @@ static void set_blocksize(Object *obj, Visitor *v, const
char *name,
/* value of 0 means "unset" */
if (value && (value < MIN_BLOCK_SIZE || value > MAX_BLOCK_SIZE)) {
error_setg(errp,
- "Property %s.%s doesn't take value %" PRIu16
+ "Property %s.%s doesn't take value %" PRIu64
" (minimum: " MIN_BLOCK_SIZE_STR
", maximum: " MAX_BLOCK_SIZE_STR ")",
dev->id ? : "", name, value);
@@ -816,7 +818,7 @@ static void set_blocksize(Object *obj, Visitor *v, const
char *name,
}
const PropertyInfo qdev_prop_blocksize = {
- .name = "uint16",
+ .name = "size",
.description = "A power of two between " MIN_BLOCK_SIZE_STR
" and " MAX_BLOCK_SIZE_STR,
.get = get_uint16,
--
2.26.2
- [PATCH v8 0/8] block: enhance handling of size-related BlockConf properties, Roman Kagan, 2020/05/28
- [PATCH v8 1/8] virtio-blk: store opt_io_size with correct size, Roman Kagan, 2020/05/28
- [PATCH v8 2/8] block: consolidate blocksize properties consistency checks, Roman Kagan, 2020/05/28
- [PATCH v8 3/8] qdev-properties: blocksize: use same limits in code and description, Roman Kagan, 2020/05/28
- [PATCH v8 4/8] qdev-properties: add size32 property type, Roman Kagan, 2020/05/28
- [PATCH v8 5/8] qdev-properties: make blocksize accept size suffixes,
Roman Kagan <=
- [PATCH v8 6/8] block: make BlockConf size props 32bit and accept size suffixes, Roman Kagan, 2020/05/28
- [PATCH v8 7/8] qdev-properties: add getter for size32 and blocksize, Roman Kagan, 2020/05/28
- [PATCH v8 8/8] block: lift blocksize property limit to 2 MiB, Roman Kagan, 2020/05/28