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usb-storage: Add rerror/werror properties

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The error handling policy was traditionally set with -drive, but with
-blockdev it is no longer possible to set frontend options. scsi-disk
(and other block devices) have long supported qdev properties to
configure the error handling policy, so let's add these options to
usb-storage as well and just forward them to the internal scsi-disk
instance.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Kevin Wolf 2018-06-25 18:39:00 +02:00
parent 0ab1c41d1c
commit b8efb36b9e
3 changed files with 14 additions and 1 deletions
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11
hw/scsi/scsi-bus.c
View File

@ -226,6 +226,8 @@ static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
int unit, bool removable, int bootindex,
bool share_rw,
BlockdevOnError rerror,
BlockdevOnError werror,
const char *serial, Error **errp)
{
const char *driver;
@ -262,6 +264,10 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
object_unparent(OBJECT(dev));
return NULL;
}
qdev_prop_set_enum(dev, "rerror", rerror);
qdev_prop_set_enum(dev, "werror", werror);
object_property_set_bool(OBJECT(dev), true, "realized", &err);
if (err != NULL) {
error_propagate(errp, err);
@ -285,7 +291,10 @@ void scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
}
qemu_opts_loc_restore(dinfo->opts);
scsi_bus_legacy_add_drive(bus, blk_by_legacy_dinfo(dinfo),
unit, false, -1, false, NULL, &error_fatal);
unit, false, -1, false,
BLOCKDEV_ON_ERROR_AUTO,
BLOCKDEV_ON_ERROR_AUTO,
NULL, &error_fatal);
}
loc_pop(&loc);
}

2
hw/usb/dev-storage.c
View File

@ -625,6 +625,7 @@ static void usb_msd_storage_realize(USBDevice *dev, Error **errp)
&usb_msd_scsi_info_storage, NULL);
scsi_dev = scsi_bus_legacy_add_drive(&s->bus, blk, 0, !!s->removable,
s->conf.bootindex, s->conf.share_rw,
s->conf.rerror, s->conf.werror,
dev->serial,
errp);
blk_unref(blk);
@ -671,6 +672,7 @@ static const VMStateDescription vmstate_usb_msd = {
static Property msd_properties[] = {
DEFINE_BLOCK_PROPERTIES(MSDState, conf),
DEFINE_BLOCK_ERROR_PROPERTIES(MSDState, conf),
DEFINE_PROP_BIT("removable", MSDState, removable, 0, false),
DEFINE_PROP_END_OF_LIST(),
};

2
include/hw/scsi/scsi.h
View File

@ -154,6 +154,8 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
int unit, bool removable, int bootindex,
bool share_rw,
BlockdevOnError rerror,
BlockdevOnError werror,
const char *serial, Error **errp);
void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
void scsi_legacy_handle_cmdline(void);