From: Roman Kagan <rvkagan@yandex-team.ru>
To: qemu-devel@nongnu.org
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
qemu-block@nongnu.org
Subject: [PATCH] block: make BlockConf.*_size properties 32-bit
Date: Tue, 11 Feb 2020 14:54:01 +0300 [thread overview]
Message-ID: <20200211115401.43230-1-rvkagan@yandex-team.ru> (raw)
Devices (virtio-blk, scsi, etc.) and the block layer are happy to use
32-bit for logical_block_size, physical_block_size, and min_io_size.
However, the properties in BlockConf are defined as uint16_t limiting
the values to 32768.
This appears unnecessary tight, and we've seen bigger block sizes handy
at times.
Make them 32 bit instead and lift the limitation.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
---
hw/core/qdev-properties.c | 21 ++++++++++++---------
include/hw/block/block.h | 8 ++++----
include/hw/qdev-properties.h | 2 +-
3 files changed, 17 insertions(+), 14 deletions(-)
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 7f93bfeb88..5f84e4a3b8 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -716,30 +716,32 @@ const PropertyInfo qdev_prop_pci_devfn = {
/* --- blocksize --- */
+#define MIN_BLOCK_SIZE 512
+#define MAX_BLOCK_SIZE 2147483648
+
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);
+ uint32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
Error *local_err = NULL;
- const int64_t min = 512;
- const int64_t max = 32768;
if (dev->realized) {
qdev_prop_set_after_realize(dev, name, errp);
return;
}
- visit_type_uint16(v, name, &value, &local_err);
+ visit_type_uint32(v, name, &value, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
/* value of 0 means "unset" */
- if (value && (value < min || value > max)) {
+ if (value && (value < MIN_BLOCK_SIZE || value > MAX_BLOCK_SIZE)) {
error_setg(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
- dev->id ? : "", name, (int64_t)value, min, max);
+ dev->id ? : "", name, (int64_t)value,
+ (int64_t)MIN_BLOCK_SIZE, (int64_t)MAX_BLOCK_SIZE);
return;
}
@@ -755,9 +757,10 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name,
}
const PropertyInfo qdev_prop_blocksize = {
- .name = "uint16",
- .description = "A power of two between 512 and 32768",
- .get = get_uint16,
+ .name = "uint32",
+ .description = "A power of two between " stringify(MIN_BLOCK_SIZE)
+ " and " stringify(MAX_BLOCK_SIZE),
+ .get = get_uint32,
.set = set_blocksize,
.set_default_value = set_default_value_uint,
};
diff --git a/include/hw/block/block.h b/include/hw/block/block.h
index d7246f3862..9dd6bba56a 100644
--- a/include/hw/block/block.h
+++ b/include/hw/block/block.h
@@ -18,9 +18,9 @@
typedef struct BlockConf {
BlockBackend *blk;
- uint16_t physical_block_size;
- uint16_t logical_block_size;
- uint16_t min_io_size;
+ uint32_t physical_block_size;
+ uint32_t logical_block_size;
+ uint32_t min_io_size;
uint32_t opt_io_size;
int32_t bootindex;
uint32_t discard_granularity;
@@ -51,7 +51,7 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf)
_conf.logical_block_size), \
DEFINE_PROP_BLOCKSIZE("physical_block_size", _state, \
_conf.physical_block_size), \
- DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \
+ DEFINE_PROP_UINT32("min_io_size", _state, _conf.min_io_size, 0), \
DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0), \
DEFINE_PROP_UINT32("discard_granularity", _state, \
_conf.discard_granularity, -1), \
diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h
index 906e697c58..ebdeeb4866 100644
--- a/include/hw/qdev-properties.h
+++ b/include/hw/qdev-properties.h
@@ -193,7 +193,7 @@ extern const PropertyInfo qdev_prop_pcie_link_width;
#define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f) \
- DEFINE_PROP_UNSIGNED(_n, _s, _f, 0, qdev_prop_blocksize, uint16_t)
+ DEFINE_PROP_UNSIGNED(_n, _s, _f, 0, qdev_prop_blocksize, uint32_t)
#define DEFINE_PROP_PCI_HOST_DEVADDR(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)
#define DEFINE_PROP_OFF_AUTO_PCIBAR(_n, _s, _f, _d) \
--
2.24.1
next reply other threads:[~2020-02-11 13:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-11 11:54 Roman Kagan [this message]
2020-02-12 21:44 ` [PATCH] block: make BlockConf.*_size properties 32-bit Eric Blake
2020-02-13 8:01 ` Roman Kagan
2020-02-13 12:47 ` Eric Blake
2020-02-13 13:55 ` Roman Kagan
2020-03-02 10:55 ` Roman Kagan
2020-03-24 8:55 ` Roman Kagan
2020-03-24 9:21 ` Kevin Wolf
2020-03-24 14:27 ` Eric Blake
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200211115401.43230-1-rvkagan@yandex-team.ru \
--to=rvkagan@yandex-team.ru \
--cc=berrange@redhat.com \
--cc=ehabkost@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-block@nongnu.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).